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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
commit68569dee1416593955c1570d638b3d9250b33012 (patch)
treed960f017cd7eba3f125b7e8a813789ee2e076310 /third_party/aom/av1/decoder
parent07c17b6b98ed32fcecff15c083ab0fd878de3cf0 (diff)
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
Diffstat (limited to 'third_party/aom/av1/decoder')
-rw-r--r--third_party/aom/av1/decoder/accounting.c138
-rw-r--r--third_party/aom/av1/decoder/accounting.h83
-rw-r--r--third_party/aom/av1/decoder/decint.h35
-rw-r--r--third_party/aom/av1/decoder/decodeframe.c5159
-rw-r--r--third_party/aom/av1/decoder/decodeframe.h39
-rw-r--r--third_party/aom/av1/decoder/decodemv.c2405
-rw-r--r--third_party/aom/av1/decoder/decodemv.h44
-rw-r--r--third_party/aom/av1/decoder/decoder.c583
-rw-r--r--third_party/aom/av1/decoder/decoder.h224
-rw-r--r--third_party/aom/av1/decoder/decodetxb.c286
-rw-r--r--third_party/aom/av1/decoder/decodetxb.h31
-rw-r--r--third_party/aom/av1/decoder/detokenize.c467
-rw-r--r--third_party/aom/av1/decoder/detokenize.h38
-rw-r--r--third_party/aom/av1/decoder/dsubexp.c82
-rw-r--r--third_party/aom/av1/decoder/dsubexp.h32
-rw-r--r--third_party/aom/av1/decoder/dthread.c194
-rw-r--r--third_party/aom/av1/decoder/dthread.h75
-rw-r--r--third_party/aom/av1/decoder/generic_decoder.c110
-rw-r--r--third_party/aom/av1/decoder/inspection.c103
-rw-r--r--third_party/aom/av1/decoder/inspection.h82
-rw-r--r--third_party/aom/av1/decoder/laplace_decoder.c121
-rw-r--r--third_party/aom/av1/decoder/pvq_decoder.c378
-rw-r--r--third_party/aom/av1/decoder/pvq_decoder.h40
23 files changed, 10749 insertions, 0 deletions
diff --git a/third_party/aom/av1/decoder/accounting.c b/third_party/aom/av1/decoder/accounting.c
new file mode 100644
index 000000000..ba243c9e1
--- /dev/null
+++ b/third_party/aom/av1/decoder/accounting.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "aom/aom_integer.h"
+#include "./accounting.h"
+
+static int aom_accounting_hash(const char *str) {
+ uint32_t val;
+ const unsigned char *ustr;
+ val = 0;
+ ustr = (const unsigned char *)str;
+ /* This is about the worst hash one can design, but it should be good enough
+ here. */
+ while (*ustr) val += *ustr++;
+ return val % AOM_ACCOUNTING_HASH_SIZE;
+}
+
+/* Dictionary lookup based on an open-addressing hash table. */
+int aom_accounting_dictionary_lookup(Accounting *accounting, const char *str) {
+ int hash;
+ int len;
+ AccountingDictionary *dictionary;
+ dictionary = &accounting->syms.dictionary;
+ hash = aom_accounting_hash(str);
+ while (accounting->hash_dictionary[hash] != -1) {
+ if (strcmp(dictionary->strs[accounting->hash_dictionary[hash]], str) == 0) {
+ return accounting->hash_dictionary[hash];
+ }
+ hash++;
+ if (hash == AOM_ACCOUNTING_HASH_SIZE) hash = 0;
+ }
+ /* No match found. */
+ assert(dictionary->num_strs + 1 < MAX_SYMBOL_TYPES);
+ accounting->hash_dictionary[hash] = dictionary->num_strs;
+ len = strlen(str);
+ dictionary->strs[dictionary->num_strs] = malloc(len + 1);
+ snprintf(dictionary->strs[dictionary->num_strs], len + 1, "%s", str);
+ dictionary->num_strs++;
+ return dictionary->num_strs - 1;
+}
+
+void aom_accounting_init(Accounting *accounting) {
+ int i;
+ accounting->num_syms_allocated = 1000;
+ accounting->syms.syms =
+ malloc(sizeof(AccountingSymbol) * accounting->num_syms_allocated);
+ accounting->syms.dictionary.num_strs = 0;
+ assert(AOM_ACCOUNTING_HASH_SIZE > 2 * MAX_SYMBOL_TYPES);
+ for (i = 0; i < AOM_ACCOUNTING_HASH_SIZE; i++)
+ accounting->hash_dictionary[i] = -1;
+ aom_accounting_reset(accounting);
+}
+
+void aom_accounting_reset(Accounting *accounting) {
+ accounting->syms.num_syms = 0;
+ accounting->syms.num_binary_syms = 0;
+ accounting->syms.num_multi_syms = 0;
+ accounting->context.x = -1;
+ accounting->context.y = -1;
+ accounting->last_tell_frac = 0;
+}
+
+void aom_accounting_clear(Accounting *accounting) {
+ int i;
+ AccountingDictionary *dictionary;
+ free(accounting->syms.syms);
+ dictionary = &accounting->syms.dictionary;
+ for (i = 0; i < dictionary->num_strs; i++) {
+ free(dictionary->strs[i]);
+ }
+}
+
+void aom_accounting_set_context(Accounting *accounting, int16_t x, int16_t y) {
+ accounting->context.x = x;
+ accounting->context.y = y;
+}
+
+void aom_accounting_record(Accounting *accounting, const char *str,
+ uint32_t bits) {
+ AccountingSymbol sym;
+ // Reuse previous symbol if it has the same context and symbol id.
+ if (accounting->syms.num_syms) {
+ AccountingSymbol *last_sym;
+ last_sym = &accounting->syms.syms[accounting->syms.num_syms - 1];
+ if (memcmp(&last_sym->context, &accounting->context,
+ sizeof(AccountingSymbolContext)) == 0) {
+ uint32_t id;
+ id = aom_accounting_dictionary_lookup(accounting, str);
+ if (id == last_sym->id) {
+ last_sym->bits += bits;
+ last_sym->samples++;
+ return;
+ }
+ }
+ }
+ sym.context = accounting->context;
+ sym.samples = 1;
+ sym.bits = bits;
+ sym.id = aom_accounting_dictionary_lookup(accounting, str);
+ assert(sym.id <= 255);
+ if (accounting->syms.num_syms == accounting->num_syms_allocated) {
+ accounting->num_syms_allocated *= 2;
+ accounting->syms.syms =
+ realloc(accounting->syms.syms,
+ sizeof(AccountingSymbol) * accounting->num_syms_allocated);
+ assert(accounting->syms.syms != NULL);
+ }
+ accounting->syms.syms[accounting->syms.num_syms++] = sym;
+}
+
+void aom_accounting_dump(Accounting *accounting) {
+ int i;
+ AccountingSymbol *sym;
+ printf("\n----- Number of recorded syntax elements = %d -----\n",
+ accounting->syms.num_syms);
+ printf("----- Total number of symbol calls = %d (%d binary) -----\n",
+ accounting->syms.num_multi_syms + accounting->syms.num_binary_syms,
+ accounting->syms.num_binary_syms);
+ for (i = 0; i < accounting->syms.num_syms; i++) {
+ sym = &accounting->syms.syms[i];
+ printf("%s x: %d, y: %d bits: %f samples: %d\n",
+ accounting->syms.dictionary.strs[sym->id], sym->context.x,
+ sym->context.y, (float)sym->bits / 8.0, sym->samples);
+ }
+}
diff --git a/third_party/aom/av1/decoder/accounting.h b/third_party/aom/av1/decoder/accounting.h
new file mode 100644
index 000000000..889865b2e
--- /dev/null
+++ b/third_party/aom/av1/decoder/accounting.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+#ifndef AOM_ACCOUNTING_H_
+#define AOM_ACCOUNTING_H_
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#define AOM_ACCOUNTING_HASH_SIZE (1021)
+
+/* Max number of entries for symbol types in the dictionary (increase as
+ necessary). */
+#define MAX_SYMBOL_TYPES (256)
+
+/*The resolution of fractional-precision bit usage measurements, i.e.,
+ 3 => 1/8th bits.*/
+#define AOM_ACCT_BITRES (3)
+
+typedef struct {
+ int16_t x;
+ int16_t y;
+} AccountingSymbolContext;
+
+typedef struct {
+ AccountingSymbolContext context;
+ uint32_t id;
+ /** Number of bits in units of 1/8 bit. */
+ uint32_t bits;
+ uint32_t samples;
+} AccountingSymbol;
+
+/** Dictionary for translating strings into id. */
+typedef struct {
+ char *(strs[MAX_SYMBOL_TYPES]);
+ int num_strs;
+} AccountingDictionary;
+
+typedef struct {
+ /** All recorded symbols decoded. */
+ AccountingSymbol *syms;
+ /** Number of syntax actually recorded. */
+ int num_syms;
+ /** Raw symbol decoding calls for non-binary values. */
+ int num_multi_syms;
+ /** Raw binary symbol decoding calls. */
+ int num_binary_syms;
+ /** Dictionary for translating strings into id. */
+ AccountingDictionary dictionary;
+} AccountingSymbols;
+
+typedef struct Accounting Accounting;
+
+struct Accounting {
+ AccountingSymbols syms;
+ /** Size allocated for symbols (not all may be used). */
+ int num_syms_allocated;
+ int16_t hash_dictionary[AOM_ACCOUNTING_HASH_SIZE];
+ AccountingSymbolContext context;
+ uint32_t last_tell_frac;
+};
+
+void aom_accounting_init(Accounting *accounting);
+void aom_accounting_reset(Accounting *accounting);
+void aom_accounting_clear(Accounting *accounting);
+void aom_accounting_set_context(Accounting *accounting, int16_t x, int16_t y);
+int aom_accounting_dictionary_lookup(Accounting *accounting, const char *str);
+void aom_accounting_record(Accounting *accounting, const char *str,
+ uint32_t bits);
+void aom_accounting_dump(Accounting *accounting);
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+#endif // AOM_ACCOUNTING_H_
diff --git a/third_party/aom/av1/decoder/decint.h b/third_party/aom/av1/decoder/decint.h
new file mode 100644
index 000000000..e887ad5e0
--- /dev/null
+++ b/third_party/aom/av1/decoder/decint.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* clang-format off */
+
+#if !defined(_decint_H)
+# define _decint_H (1)
+# include "av1/common/pvq_state.h"
+# include "aom_dsp/bitreader.h"
+# include "aom_dsp/entdec.h"
+
+typedef struct daala_dec_ctx daala_dec_ctx;
+
+typedef struct daala_dec_ctx od_dec_ctx;
+
+
+struct daala_dec_ctx {
+ /* Stores context-adaptive CDFs for PVQ. */
+ od_state state;
+ /* AOM entropy decoder. */
+ aom_reader *r;
+ int use_activity_masking;
+ /* Mode of quantization matrice : FLAT (0) or HVS (1) */
+ int qm;
+};
+
+#endif
diff --git a/third_party/aom/av1/decoder/decodeframe.c b/third_party/aom/av1/decoder/decodeframe.c
new file mode 100644
index 000000000..289d38670
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodeframe.c
@@ -0,0 +1,5159 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <stdlib.h> // qsort()
+
+#include "./aom_config.h"
+#include "./aom_dsp_rtcd.h"
+#include "./aom_scale_rtcd.h"
+#include "./av1_rtcd.h"
+
+#include "aom/aom_codec.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/bitreader.h"
+#include "aom_dsp/bitreader_buffer.h"
+#include "aom_dsp/binary_codes_reader.h"
+#include "aom_mem/aom_mem.h"
+#include "aom_ports/mem.h"
+#include "aom_ports/mem_ops.h"
+#include "aom_scale/aom_scale.h"
+#include "aom_util/aom_thread.h"
+
+#if CONFIG_BITSTREAM_DEBUG
+#include "aom_util/debug_util.h"
+#endif // CONFIG_BITSTREAM_DEBUG
+
+#include "av1/common/alloccommon.h"
+#if CONFIG_CDEF
+#include "av1/common/cdef.h"
+#include "av1/common/clpf.h"
+#endif
+#if CONFIG_INSPECTION
+#include "av1/decoder/inspection.h"
+#endif
+#include "av1/common/common.h"
+#include "av1/common/entropy.h"
+#include "av1/common/entropymode.h"
+#include "av1/common/entropymv.h"
+#include "av1/common/idct.h"
+#include "av1/common/pred_common.h"
+#include "av1/common/quant_common.h"
+#include "av1/common/reconinter.h"
+#include "av1/common/reconintra.h"
+#include "av1/common/seg_common.h"
+#include "av1/common/thread_common.h"
+#include "av1/common/tile_common.h"
+
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/decodemv.h"
+#include "av1/decoder/decoder.h"
+#if CONFIG_LV_MAP
+#include "av1/decoder/decodetxb.h"
+#endif
+#include "av1/decoder/detokenize.h"
+#include "av1/decoder/dsubexp.h"
+
+#if CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION
+#include "av1/common/warped_motion.h"
+#endif // CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION
+
+#define MAX_AV1_HEADER_SIZE 80
+#define ACCT_STR __func__
+
+#if CONFIG_PVQ
+#include "av1/common/partition.h"
+#include "av1/common/pvq.h"
+#include "av1/common/scan.h"
+#include "av1/decoder/decint.h"
+#include "av1/decoder/pvq_decoder.h"
+#include "av1/encoder/encodemb.h"
+#include "av1/encoder/hybrid_fwd_txfm.h"
+#endif
+
+#if CONFIG_CFL
+#include "av1/common/cfl.h"
+#endif
+
+static struct aom_read_bit_buffer *init_read_bit_buffer(
+ AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
+ const uint8_t *data_end, uint8_t clear_data[MAX_AV1_HEADER_SIZE]);
+static int read_compressed_header(AV1Decoder *pbi, const uint8_t *data,
+ size_t partition_size);
+static size_t read_uncompressed_header(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb);
+
+static int is_compound_reference_allowed(const AV1_COMMON *cm) {
+#if CONFIG_LOWDELAY_COMPOUND // Normative in decoder
+ return !frame_is_intra_only(cm);
+#else
+ int i;
+ if (frame_is_intra_only(cm)) return 0;
+ for (i = 1; i < INTER_REFS_PER_FRAME; ++i)
+ if (cm->ref_frame_sign_bias[i + 1] != cm->ref_frame_sign_bias[1]) return 1;
+
+ return 0;
+#endif
+}
+
+static void setup_compound_reference_mode(AV1_COMMON *cm) {
+#if CONFIG_EXT_REFS
+ cm->comp_fwd_ref[0] = LAST_FRAME;
+ cm->comp_fwd_ref[1] = LAST2_FRAME;
+ cm->comp_fwd_ref[2] = LAST3_FRAME;
+ cm->comp_fwd_ref[3] = GOLDEN_FRAME;
+
+ cm->comp_bwd_ref[0] = BWDREF_FRAME;
+ cm->comp_bwd_ref[1] = ALTREF_FRAME;
+#else
+ if (cm->ref_frame_sign_bias[LAST_FRAME] ==
+ cm->ref_frame_sign_bias[GOLDEN_FRAME]) {
+ cm->comp_fixed_ref = ALTREF_FRAME;
+ cm->comp_var_ref[0] = LAST_FRAME;
+ cm->comp_var_ref[1] = GOLDEN_FRAME;
+ } else if (cm->ref_frame_sign_bias[LAST_FRAME] ==
+ cm->ref_frame_sign_bias[ALTREF_FRAME]) {
+ cm->comp_fixed_ref = GOLDEN_FRAME;
+ cm->comp_var_ref[0] = LAST_FRAME;
+ cm->comp_var_ref[1] = ALTREF_FRAME;
+ } else {
+ cm->comp_fixed_ref = LAST_FRAME;
+ cm->comp_var_ref[0] = GOLDEN_FRAME;
+ cm->comp_var_ref[1] = ALTREF_FRAME;
+ }
+#endif // CONFIG_EXT_REFS
+}
+
+static int read_is_valid(const uint8_t *start, size_t len, const uint8_t *end) {
+ return len != 0 && len <= (size_t)(end - start);
+}
+
+static int decode_unsigned_max(struct aom_read_bit_buffer *rb, int max) {
+ const int data = aom_rb_read_literal(rb, get_unsigned_bits(max));
+ return data > max ? max : data;
+}
+
+static TX_MODE read_tx_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
+ struct aom_read_bit_buffer *rb) {
+ int i, all_lossless = 1;
+#if CONFIG_TX64X64
+ TX_MODE tx_mode;
+#endif
+
+ if (cm->seg.enabled) {
+ for (i = 0; i < MAX_SEGMENTS; ++i) {
+ if (!xd->lossless[i]) {
+ all_lossless = 0;
+ break;
+ }
+ }
+ } else {
+ all_lossless = xd->lossless[0];
+ }
+
+ if (all_lossless) return ONLY_4X4;
+#if CONFIG_TX64X64
+ tx_mode = aom_rb_read_bit(rb) ? TX_MODE_SELECT : aom_rb_read_literal(rb, 2);
+ if (tx_mode == ALLOW_32X32) tx_mode += aom_rb_read_bit(rb);
+ return tx_mode;
+#else
+ return aom_rb_read_bit(rb) ? TX_MODE_SELECT : aom_rb_read_literal(rb, 2);
+#endif // CONFIG_TX64X64
+}
+
+#if !CONFIG_EC_ADAPT
+static void read_tx_size_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j, k;
+ for (i = 0; i < MAX_TX_DEPTH; ++i)
+ for (j = 0; j < TX_SIZE_CONTEXTS; ++j)
+ for (k = 0; k < i + 1; ++k)
+ av1_diff_update_prob(r, &fc->tx_size_probs[i][j][k], ACCT_STR);
+}
+#endif
+
+#if !CONFIG_EC_ADAPT
+static void read_switchable_interp_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j;
+ for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j) {
+ for (i = 0; i < SWITCHABLE_FILTERS - 1; ++i)
+ av1_diff_update_prob(r, &fc->switchable_interp_prob[j][i], ACCT_STR);
+ }
+}
+#endif
+
+static void read_inter_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+#if CONFIG_REF_MV
+ int i;
+ for (i = 0; i < NEWMV_MODE_CONTEXTS; ++i)
+ av1_diff_update_prob(r, &fc->newmv_prob[i], ACCT_STR);
+ for (i = 0; i < ZEROMV_MODE_CONTEXTS; ++i)
+ av1_diff_update_prob(r, &fc->zeromv_prob[i], ACCT_STR);
+ for (i = 0; i < REFMV_MODE_CONTEXTS; ++i)
+ av1_diff_update_prob(r, &fc->refmv_prob[i], ACCT_STR);
+ for (i = 0; i < DRL_MODE_CONTEXTS; ++i)
+ av1_diff_update_prob(r, &fc->drl_prob[i], ACCT_STR);
+#else
+#if !CONFIG_EC_ADAPT
+ int i, j;
+ for (i = 0; i < INTER_MODE_CONTEXTS; ++i) {
+ for (j = 0; j < INTER_MODES - 1; ++j)
+ av1_diff_update_prob(r, &fc->inter_mode_probs[i][j], ACCT_STR);
+ }
+#else
+ (void)fc;
+ (void)r;
+#endif
+#endif
+}
+
+#if CONFIG_EXT_INTER
+static void read_inter_compound_mode_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j;
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (j = 0; j < INTER_MODE_CONTEXTS; ++j) {
+ for (i = 0; i < INTER_COMPOUND_MODES - 1; ++i) {
+ av1_diff_update_prob(r, &fc->inter_compound_mode_probs[j][i], ACCT_STR);
+ }
+ }
+ }
+}
+#endif // CONFIG_EXT_INTER
+#if !CONFIG_EC_ADAPT
+#if !CONFIG_EXT_TX
+static void read_ext_tx_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j, k;
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
+ for (j = 0; j < TX_TYPES; ++j) {
+ for (k = 0; k < TX_TYPES - 1; ++k)
+ av1_diff_update_prob(r, &fc->intra_ext_tx_prob[i][j][k], ACCT_STR);
+ }
+ }
+ }
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
+ for (k = 0; k < TX_TYPES - 1; ++k)
+ av1_diff_update_prob(r, &fc->inter_ext_tx_prob[i][k], ACCT_STR);
+ }
+ }
+}
+#endif
+#endif
+
+static REFERENCE_MODE read_frame_reference_mode(
+ const AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ if (is_compound_reference_allowed(cm)) {
+#if CONFIG_REF_ADAPT
+ return aom_rb_read_bit(rb) ? REFERENCE_MODE_SELECT : SINGLE_REFERENCE;
+#else
+ return aom_rb_read_bit(rb)
+ ? REFERENCE_MODE_SELECT
+ : (aom_rb_read_bit(rb) ? COMPOUND_REFERENCE : SINGLE_REFERENCE);
+#endif // CONFIG_REF_ADAPT
+ } else {
+ return SINGLE_REFERENCE;
+ }
+}
+
+static void read_frame_reference_mode_probs(AV1_COMMON *cm, aom_reader *r) {
+ FRAME_CONTEXT *const fc = cm->fc;
+ int i, j;
+
+ if (cm->reference_mode == REFERENCE_MODE_SELECT)
+ for (i = 0; i < COMP_INTER_CONTEXTS; ++i)
+ av1_diff_update_prob(r, &fc->comp_inter_prob[i], ACCT_STR);
+
+ if (cm->reference_mode != COMPOUND_REFERENCE) {
+ for (i = 0; i < REF_CONTEXTS; ++i) {
+ for (j = 0; j < (SINGLE_REFS - 1); ++j) {
+ av1_diff_update_prob(r, &fc->single_ref_prob[i][j], ACCT_STR);
+ }
+ }
+ }
+
+ if (cm->reference_mode != SINGLE_REFERENCE) {
+ for (i = 0; i < REF_CONTEXTS; ++i) {
+#if CONFIG_EXT_REFS
+ for (j = 0; j < (FWD_REFS - 1); ++j)
+ av1_diff_update_prob(r, &fc->comp_ref_prob[i][j], ACCT_STR);
+ for (j = 0; j < (BWD_REFS - 1); ++j)
+ av1_diff_update_prob(r, &fc->comp_bwdref_prob[i][j], ACCT_STR);
+#else
+ for (j = 0; j < (COMP_REFS - 1); ++j)
+ av1_diff_update_prob(r, &fc->comp_ref_prob[i][j], ACCT_STR);
+#endif // CONFIG_EXT_REFS
+ }
+ }
+}
+
+static void update_mv_probs(aom_prob *p, int n, aom_reader *r) {
+ int i;
+ for (i = 0; i < n; ++i) av1_diff_update_prob(r, &p[i], ACCT_STR);
+}
+
+static void read_mv_probs(nmv_context *ctx, int allow_hp, aom_reader *r) {
+ int i;
+
+#if !CONFIG_EC_ADAPT
+ int j;
+ update_mv_probs(ctx->joints, MV_JOINTS - 1, r);
+
+ for (i = 0; i < 2; ++i) {
+ nmv_component *const comp_ctx = &ctx->comps[i];
+ update_mv_probs(&comp_ctx->sign, 1, r);
+ update_mv_probs(comp_ctx->classes, MV_CLASSES - 1, r);
+ update_mv_probs(comp_ctx->class0, CLASS0_SIZE - 1, r);
+ update_mv_probs(comp_ctx->bits, MV_OFFSET_BITS, r);
+ }
+ for (i = 0; i < 2; ++i) {
+ nmv_component *const comp_ctx = &ctx->comps[i];
+ for (j = 0; j < CLASS0_SIZE; ++j) {
+ update_mv_probs(comp_ctx->class0_fp[j], MV_FP_SIZE - 1, r);
+ }
+ update_mv_probs(comp_ctx->fp, MV_FP_SIZE - 1, r);
+ }
+#endif // !CONFIG_EC_ADAPT
+
+ if (allow_hp) {
+ for (i = 0; i < 2; ++i) {
+ nmv_component *const comp_ctx = &ctx->comps[i];
+ update_mv_probs(&comp_ctx->class0_hp, 1, r);
+ update_mv_probs(&comp_ctx->hp, 1, r);
+ }
+ }
+}
+
+static void inverse_transform_block(MACROBLOCKD *xd, int plane,
+ const TX_TYPE tx_type,
+ const TX_SIZE tx_size, uint8_t *dst,
+ int stride, int16_t scan_line, int eob) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ tran_low_t *const dqcoeff = pd->dqcoeff;
+ av1_inverse_transform_block(xd, dqcoeff, tx_type, tx_size, dst, stride, eob);
+ memset(dqcoeff, 0, (scan_line + 1) * sizeof(dqcoeff[0]));
+}
+
+#if CONFIG_PVQ
+static int av1_pvq_decode_helper(MACROBLOCKD *xd, tran_low_t *ref_coeff,
+ tran_low_t *dqcoeff, int16_t *quant, int pli,
+ int bs, TX_TYPE tx_type, int xdec,
+ PVQ_SKIP_TYPE ac_dc_coded) {
+ unsigned int flags; // used for daala's stream analyzer.
+ int off;
+ const int is_keyframe = 0;
+ const int has_dc_skip = 1;
+ int coeff_shift = 3 - av1_get_tx_scale(bs);
+ int hbd_downshift = 0;
+ int rounding_mask;
+ // DC quantizer for PVQ
+ int pvq_dc_quant;
+ int lossless = (quant[0] == 0);
+ const int blk_size = tx_size_wide[bs];
+ int eob = 0;
+ int i;
+ od_dec_ctx *dec = &xd->daala_dec;
+ int use_activity_masking = dec->use_activity_masking;
+ DECLARE_ALIGNED(16, tran_low_t, dqcoeff_pvq[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
+ DECLARE_ALIGNED(16, tran_low_t, ref_coeff_pvq[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
+
+ od_coeff ref_int32[OD_TXSIZE_MAX * OD_TXSIZE_MAX];
+ od_coeff out_int32[OD_TXSIZE_MAX * OD_TXSIZE_MAX];
+
+#if CONFIG_HIGHBITDEPTH
+ hbd_downshift = xd->bd - 8;
+#endif // CONFIG_HIGHBITDEPTH
+
+ od_raster_to_coding_order(ref_coeff_pvq, blk_size, tx_type, ref_coeff,
+ blk_size);
+
+ assert(OD_COEFF_SHIFT >= 4);
+ if (lossless)
+ pvq_dc_quant = 1;
+ else {
+ if (use_activity_masking)
+ pvq_dc_quant = OD_MAXI(
+ 1, (quant[0] << (OD_COEFF_SHIFT - 3) >> hbd_downshift) *
+ dec->state.pvq_qm_q4[pli][od_qm_get_index(bs, 0)] >>
+ 4);
+ else
+ pvq_dc_quant =
+ OD_MAXI(1, quant[0] << (OD_COEFF_SHIFT - 3) >> hbd_downshift);
+ }
+
+ off = od_qm_offset(bs, xdec);
+
+ // copy int16 inputs to int32
+ for (i = 0; i < blk_size * blk_size; i++) {
+ ref_int32[i] =
+ AOM_SIGNED_SHL(ref_coeff_pvq[i], OD_COEFF_SHIFT - coeff_shift) >>
+ hbd_downshift;
+ }
+
+ od_pvq_decode(dec, ref_int32, out_int32,
+ OD_MAXI(1, quant[1] << (OD_COEFF_SHIFT - 3) >> hbd_downshift),
+ pli, bs, OD_PVQ_BETA[use_activity_masking][pli][bs],
+ is_keyframe, &flags, ac_dc_coded, dec->state.qm + off,
+ dec->state.qm_inv + off);
+
+ if (!has_dc_skip || out_int32[0]) {
+ out_int32[0] =
+ has_dc_skip + generic_decode(dec->r, &dec->state.adapt->model_dc[pli],
+ &dec->state.adapt->ex_dc[pli][bs][0], 2,
+ "dc:mag");
+ if (out_int32[0]) out_int32[0] *= aom_read_bit(dec->r, "dc:sign") ? -1 : 1;
+ }
+ out_int32[0] = out_int32[0] * pvq_dc_quant + ref_int32[0];
+
+ // copy int32 result back to int16
+ assert(OD_COEFF_SHIFT > coeff_shift);
+ rounding_mask = (1 << (OD_COEFF_SHIFT - coeff_shift - 1)) - 1;
+ for (i = 0; i < blk_size * blk_size; i++) {
+ out_int32[i] = AOM_SIGNED_SHL(out_int32[i], hbd_downshift);
+ dqcoeff_pvq[i] = (out_int32[i] + (out_int32[i] < 0) + rounding_mask) >>
+ (OD_COEFF_SHIFT - coeff_shift);
+ }
+
+ od_coding_order_to_raster(dqcoeff, blk_size, tx_type, dqcoeff_pvq, blk_size);
+
+ eob = blk_size * blk_size;
+
+ return eob;
+}
+
+static PVQ_SKIP_TYPE read_pvq_skip(AV1_COMMON *cm, MACROBLOCKD *const xd,
+ int plane, TX_SIZE tx_size) {
+ // decode ac/dc coded flag. bit0: DC coded, bit1 : AC coded
+ // NOTE : we don't use 5 symbols for luma here in aom codebase,
+ // since block partition is taken care of by aom.
+ // So, only AC/DC skip info is coded
+ const int ac_dc_coded = aom_read_symbol(
+ xd->daala_dec.r,
+ xd->daala_dec.state.adapt->skip_cdf[2 * tx_size + (plane != 0)], 4,
+ "skip");
+ if (ac_dc_coded < 0 || ac_dc_coded > 3) {
+ aom_internal_error(&cm->error, AOM_CODEC_INVALID_PARAM,
+ "Invalid PVQ Skip Type");
+ }
+ return ac_dc_coded;
+}
+
+static int av1_pvq_decode_helper2(AV1_COMMON *cm, MACROBLOCKD *const xd,
+ MB_MODE_INFO *const mbmi, int plane, int row,
+ int col, TX_SIZE tx_size, TX_TYPE tx_type) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ // transform block size in pixels
+ int tx_blk_size = tx_size_wide[tx_size];
+ int i, j;
+ tran_low_t *pvq_ref_coeff = pd->pvq_ref_coeff;
+ const int diff_stride = tx_blk_size;
+ int16_t *pred = pd->pred;
+ tran_low_t *const dqcoeff = pd->dqcoeff;
+ uint8_t *dst;
+ int eob;
+ const PVQ_SKIP_TYPE ac_dc_coded = read_pvq_skip(cm, xd, plane, tx_size);
+
+ eob = 0;
+ dst = &pd->dst.buf[4 * row * pd->dst.stride + 4 * col];
+
+ if (ac_dc_coded) {
+ int xdec = pd->subsampling_x;
+ int seg_id = mbmi->segment_id;
+ int16_t *quant;
+ FWD_TXFM_PARAM fwd_txfm_param;
+ // ToDo(yaowu): correct this with optimal number from decoding process.
+ const int max_scan_line = tx_size_2d[tx_size];
+#if CONFIG_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ for (j = 0; j < tx_blk_size; j++)
+ for (i = 0; i < tx_blk_size; i++)
+ pred[diff_stride * j + i] =
+ CONVERT_TO_SHORTPTR(dst)[pd->dst.stride * j + i];
+ } else {
+#endif
+ for (j = 0; j < tx_blk_size; j++)
+ for (i = 0; i < tx_blk_size; i++)
+ pred[diff_stride * j + i] = dst[pd->dst.stride * j + i];
+#if CONFIG_HIGHBITDEPTH
+ }
+#endif
+
+ fwd_txfm_param.tx_type = tx_type;
+ fwd_txfm_param.tx_size = tx_size;
+ fwd_txfm_param.lossless = xd->lossless[seg_id];
+
+#if CONFIG_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ fwd_txfm_param.bd = xd->bd;
+ av1_highbd_fwd_txfm(pred, pvq_ref_coeff, diff_stride, &fwd_txfm_param);
+ } else {
+#endif // CONFIG_HIGHBITDEPTH
+ av1_fwd_txfm(pred, pvq_ref_coeff, diff_stride, &fwd_txfm_param);
+#if CONFIG_HIGHBITDEPTH
+ }
+#endif // CONFIG_HIGHBITDEPTH
+
+ quant = &pd->seg_dequant[seg_id][0]; // aom's quantizer
+
+ eob = av1_pvq_decode_helper(xd, pvq_ref_coeff, dqcoeff, quant, plane,
+ tx_size, tx_type, xdec, ac_dc_coded);
+
+ inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
+ max_scan_line, eob);
+ }
+
+ return eob;
+}
+#endif
+
+static int get_block_idx(const MACROBLOCKD *xd, int plane, int row, int col) {
+ const int bsize = xd->mi[0]->mbmi.sb_type;
+ const struct macroblockd_plane *pd = &xd->plane[plane];
+#if CONFIG_CB4X4
+#if CONFIG_CHROMA_2X2
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+#else
+ const BLOCK_SIZE plane_bsize =
+ AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd));
+#endif // CONFIG_CHROMA_2X2
+#else
+ const BLOCK_SIZE plane_bsize =
+ get_plane_block_size(AOMMAX(BLOCK_8X8, bsize), pd);
+#endif
+ const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
+ const TX_SIZE tx_size = get_tx_size(plane, xd);
+ const uint8_t txh_unit = tx_size_high_unit[tx_size];
+ return row * max_blocks_wide + col * txh_unit;
+}
+
+static void predict_and_reconstruct_intra_block(
+ AV1_COMMON *cm, MACROBLOCKD *const xd, aom_reader *const r,
+ MB_MODE_INFO *const mbmi, int plane, int row, int col, TX_SIZE tx_size) {
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ const int block_idx = get_block_idx(xd, plane, row, col);
+#if CONFIG_PVQ
+ (void)r;
+#endif
+ av1_predict_intra_block_facade(xd, plane, block_idx, col, row, tx_size);
+
+ if (!mbmi->skip) {
+#if !CONFIG_PVQ
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+#if CONFIG_LV_MAP
+ int16_t max_scan_line = 0;
+ int eob;
+ av1_read_coeffs_txb_facade(cm, xd, r, row, col, block_idx, plane,
+ pd->dqcoeff, &max_scan_line, &eob);
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+#else // CONFIG_LV_MAP
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+ const SCAN_ORDER *scan_order = get_scan(cm, tx_size, tx_type, 0);
+ int16_t max_scan_line = 0;
+ const int eob =
+ av1_decode_block_tokens(cm, xd, plane, scan_order, col, row, tx_size,
+ tx_type, &max_scan_line, r, mbmi->segment_id);
+#endif // CONFIG_LV_MAP
+ if (eob) {
+ uint8_t *dst =
+ &pd->dst.buf[(row * pd->dst.stride + col) << tx_size_wide_log2[0]];
+ inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
+ max_scan_line, eob);
+ }
+#else
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+ av1_pvq_decode_helper2(cm, xd, mbmi, plane, row, col, tx_size, tx_type);
+#endif
+ }
+#if CONFIG_CFL
+ if (plane == AOM_PLANE_Y) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ uint8_t *dst =
+ &pd->dst.buf[(row * pd->dst.stride + col) << tx_size_wide_log2[0]];
+ cfl_store(xd->cfl, dst, pd->dst.stride, row, col, tx_size);
+ }
+#endif
+}
+
+#if CONFIG_VAR_TX && !CONFIG_COEF_INTERLEAVE
+static void decode_reconstruct_tx(AV1_COMMON *cm, MACROBLOCKD *const xd,
+ aom_reader *r, MB_MODE_INFO *const mbmi,
+ int plane, BLOCK_SIZE plane_bsize,
+ int blk_row, int blk_col, TX_SIZE tx_size,
+ int *eob_total) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
+ const int tx_row = blk_row >> (1 - pd->subsampling_y);
+ const int tx_col = blk_col >> (1 - pd->subsampling_x);
+ const TX_SIZE plane_tx_size =
+ plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0]
+ : mbmi->inter_tx_size[tx_row][tx_col];
+ // Scale to match transform block unit.
+ const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
+ const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
+
+ if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
+
+ if (tx_size == plane_tx_size) {
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ int block_idx = get_block_idx(xd, plane, blk_row, blk_col);
+#if CONFIG_LV_MAP
+ (void)segment_id;
+ int16_t max_scan_line = 0;
+ int eob;
+ av1_read_coeffs_txb_facade(cm, xd, r, row, col, block_idx, plane,
+ pd->dqcoeff, &max_scan_line, &eob);
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, plane_tx_size);
+#else // CONFIG_LV_MAP
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, plane_tx_size);
+ const SCAN_ORDER *sc = get_scan(cm, plane_tx_size, tx_type, 1);
+ int16_t max_scan_line = 0;
+ const int eob = av1_decode_block_tokens(
+ cm, xd, plane, sc, blk_col, blk_row, plane_tx_size, tx_type,
+ &max_scan_line, r, mbmi->segment_id);
+#endif // CONFIG_LV_MAP
+ inverse_transform_block(xd, plane, tx_type, plane_tx_size,
+ &pd->dst.buf[(blk_row * pd->dst.stride + blk_col)
+ << tx_size_wide_log2[0]],
+ pd->dst.stride, max_scan_line, eob);
+ *eob_total += eob;
+ } else {
+ const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
+ const int bsl = tx_size_wide_unit[sub_txs];
+ int i;
+
+ assert(bsl > 0);
+
+ for (i = 0; i < 4; ++i) {
+ const int offsetr = blk_row + (i >> 1) * bsl;
+ const int offsetc = blk_col + (i & 0x01) * bsl;
+
+ if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
+
+ decode_reconstruct_tx(cm, xd, r, mbmi, plane, plane_bsize, offsetr,
+ offsetc, sub_txs, eob_total);
+ }
+ }
+}
+#endif // CONFIG_VAR_TX
+
+#if !CONFIG_VAR_TX || CONFIG_SUPERTX || CONFIG_COEF_INTERLEAVE || \
+ (!CONFIG_VAR_TX && CONFIG_EXT_TX && CONFIG_RECT_TX)
+static int reconstruct_inter_block(AV1_COMMON *cm, MACROBLOCKD *const xd,
+ aom_reader *const r, int segment_id,
+ int plane, int row, int col,
+ TX_SIZE tx_size) {
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ int block_idx = get_block_idx(xd, plane, row, col);
+#if CONFIG_PVQ
+ int eob;
+ (void)r;
+ (void)segment_id;
+#else
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+#endif
+
+#if !CONFIG_PVQ
+#if CONFIG_LV_MAP
+ (void)segment_id;
+ int16_t max_scan_line = 0;
+ int eob;
+ av1_read_coeffs_txb_facade(cm, xd, r, row, col, block_idx, plane, pd->dqcoeff,
+ &max_scan_line, &eob);
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+#else // CONFIG_LV_MAP
+ int16_t max_scan_line = 0;
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+ const SCAN_ORDER *scan_order = get_scan(cm, tx_size, tx_type, 1);
+ const int eob =
+ av1_decode_block_tokens(cm, xd, plane, scan_order, col, row, tx_size,
+ tx_type, &max_scan_line, r, segment_id);
+#endif // CONFIG_LV_MAP
+ uint8_t *dst =
+ &pd->dst.buf[(row * pd->dst.stride + col) << tx_size_wide_log2[0]];
+ if (eob)
+ inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
+ max_scan_line, eob);
+#else
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block_idx, tx_size);
+ eob = av1_pvq_decode_helper2(cm, xd, &xd->mi[0]->mbmi, plane, row, col,
+ tx_size, tx_type);
+#endif
+ return eob;
+}
+#endif // !CONFIG_VAR_TX || CONFIG_SUPER_TX
+
+static void set_offsets(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ BLOCK_SIZE bsize, int mi_row, int mi_col, int bw,
+ int bh, int x_mis, int y_mis) {
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ int x, y;
+ const TileInfo *const tile = &xd->tile;
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = &cm->mi[offset];
+ // TODO(slavarnway): Generate sb_type based on bwl and bhl, instead of
+ // passing bsize from decode_partition().
+ xd->mi[0]->mbmi.sb_type = bsize;
+#if CONFIG_RD_DEBUG
+ xd->mi[0]->mbmi.mi_row = mi_row;
+ xd->mi[0]->mbmi.mi_col = mi_col;
+#endif
+ for (y = 0; y < y_mis; ++y)
+ for (x = !y; x < x_mis; ++x) xd->mi[y * cm->mi_stride + x] = xd->mi[0];
+
+ set_plane_n4(xd, bw, bh);
+ set_skip_context(xd, mi_row, mi_col);
+
+#if CONFIG_VAR_TX
+ xd->max_tx_size = max_txsize_lookup[bsize];
+#endif
+
+ // Distance of Mb to the various image edges. These are specified to 8th pel
+ // as they are always compared to values that are in 1/8th pel units
+ set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw,
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->dependent_horz_tiles,
+#endif // CONFIG_DEPENDENT_HORZTILES
+ cm->mi_rows, cm->mi_cols);
+
+ av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row,
+ mi_col);
+}
+
+#if CONFIG_SUPERTX
+static MB_MODE_INFO *set_offsets_extend(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ const TileInfo *const tile,
+ BLOCK_SIZE bsize_pred, int mi_row_pred,
+ int mi_col_pred, int mi_row_ori,
+ int mi_col_ori) {
+ // Used in supertx
+ // (mi_row_ori, mi_col_ori): location for mv
+ // (mi_row_pred, mi_col_pred, bsize_pred): region to predict
+ const int bw = mi_size_wide[bsize_pred];
+ const int bh = mi_size_high[bsize_pred];
+ const int offset = mi_row_ori * cm->mi_stride + mi_col_ori;
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = cm->mi + offset;
+ set_mi_row_col(xd, tile, mi_row_pred, bh, mi_col_pred, bw,
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->dependent_horz_tiles,
+#endif // CONFIG_DEPENDENT_HORZTILES
+ cm->mi_rows, cm->mi_cols);
+
+ xd->up_available = (mi_row_ori > tile->mi_row_start);
+ xd->left_available = (mi_col_ori > tile->mi_col_start);
+
+ set_plane_n4(xd, bw, bh);
+
+ return &xd->mi[0]->mbmi;
+}
+
+#if CONFIG_SUPERTX
+static MB_MODE_INFO *set_mb_offsets(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ BLOCK_SIZE bsize, int mi_row, int mi_col,
+ int bw, int bh, int x_mis, int y_mis) {
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ const TileInfo *const tile = &xd->tile;
+ int x, y;
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = cm->mi + offset;
+ xd->mi[0]->mbmi.sb_type = bsize;
+ for (y = 0; y < y_mis; ++y)
+ for (x = !y; x < x_mis; ++x) xd->mi[y * cm->mi_stride + x] = xd->mi[0];
+
+ set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw,
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->dependent_horz_tiles,
+#endif // CONFIG_DEPENDENT_HORZTILES
+ cm->mi_rows, cm->mi_cols);
+ return &xd->mi[0]->mbmi;
+}
+#endif
+
+static void set_offsets_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ const TileInfo *const tile, BLOCK_SIZE bsize,
+ int mi_row, int mi_col) {
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+ const int offset = mi_row * cm->mi_stride + mi_col;
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = cm->mi + offset;
+
+ set_plane_n4(xd, bw, bh);
+
+ set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw,
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->dependent_horz_tiles,
+#endif // CONFIG_DEPENDENT_HORZTILES
+ cm->mi_rows, cm->mi_cols);
+
+ av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row,
+ mi_col);
+}
+
+static void set_param_topblock(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ BLOCK_SIZE bsize, int mi_row, int mi_col,
+ int txfm, int skip) {
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+ const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col);
+ const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row);
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ int x, y;
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = cm->mi + offset;
+
+ for (y = 0; y < y_mis; ++y)
+ for (x = 0; x < x_mis; ++x) {
+ xd->mi[y * cm->mi_stride + x]->mbmi.skip = skip;
+ xd->mi[y * cm->mi_stride + x]->mbmi.tx_type = txfm;
+ }
+#if CONFIG_VAR_TX
+ xd->above_txfm_context = cm->above_txfm_context + mi_col;
+ xd->left_txfm_context =
+ xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
+ set_txfm_ctxs(xd->mi[0]->mbmi.tx_size, bw, bh, skip, xd);
+#endif
+}
+
+static void set_ref(AV1_COMMON *const cm, MACROBLOCKD *const xd, int idx,
+ int mi_row, int mi_col) {
+ MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
+ RefBuffer *ref_buffer = &cm->frame_refs[mbmi->ref_frame[idx] - LAST_FRAME];
+ xd->block_refs[idx] = ref_buffer;
+ if (!av1_is_valid_scale(&ref_buffer->sf))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid scale factors");
+ av1_setup_pre_planes(xd, idx, ref_buffer->buf, mi_row, mi_col,
+ &ref_buffer->sf);
+ aom_merge_corrupted_flag(&xd->corrupted, ref_buffer->buf->corrupted);
+}
+
+static void dec_predict_b_extend(
+ AV1Decoder *const pbi, MACROBLOCKD *const xd, const TileInfo *const tile,
+ int block, int mi_row_ori, int mi_col_ori, int mi_row_pred, int mi_col_pred,
+ int mi_row_top, int mi_col_top, uint8_t *dst_buf[3], int dst_stride[3],
+ BLOCK_SIZE bsize_top, BLOCK_SIZE bsize_pred, int b_sub8x8, int bextend) {
+ // Used in supertx
+ // (mi_row_ori, mi_col_ori): location for mv
+ // (mi_row_pred, mi_col_pred, bsize_pred): region to predict
+ // (mi_row_top, mi_col_top, bsize_top): region of the top partition size
+ // block: sub location of sub8x8 blocks
+ // b_sub8x8: 1: ori is sub8x8; 0: ori is not sub8x8
+ // bextend: 1: region to predict is an extension of ori; 0: not
+ int r = (mi_row_pred - mi_row_top) * MI_SIZE;
+ int c = (mi_col_pred - mi_col_top) * MI_SIZE;
+ const int mi_width_top = mi_size_wide[bsize_top];
+ const int mi_height_top = mi_size_high[bsize_top];
+ MB_MODE_INFO *mbmi;
+ AV1_COMMON *const cm = &pbi->common;
+
+ if (mi_row_pred < mi_row_top || mi_col_pred < mi_col_top ||
+ mi_row_pred >= mi_row_top + mi_height_top ||
+ mi_col_pred >= mi_col_top + mi_width_top || mi_row_pred >= cm->mi_rows ||
+ mi_col_pred >= cm->mi_cols)
+ return;
+
+ mbmi = set_offsets_extend(cm, xd, tile, bsize_pred, mi_row_pred, mi_col_pred,
+ mi_row_ori, mi_col_ori);
+ set_ref(cm, xd, 0, mi_row_pred, mi_col_pred);
+ if (has_second_ref(&xd->mi[0]->mbmi))
+ set_ref(cm, xd, 1, mi_row_pred, mi_col_pred);
+
+ if (!bextend) mbmi->tx_size = max_txsize_lookup[bsize_top];
+
+ xd->plane[0].dst.stride = dst_stride[0];
+ xd->plane[1].dst.stride = dst_stride[1];
+ xd->plane[2].dst.stride = dst_stride[2];
+ xd->plane[0].dst.buf = dst_buf[0] +
+ (r >> xd->plane[0].subsampling_y) * dst_stride[0] +
+ (c >> xd->plane[0].subsampling_x);
+ xd->plane[1].dst.buf = dst_buf[1] +
+ (r >> xd->plane[1].subsampling_y) * dst_stride[1] +
+ (c >> xd->plane[1].subsampling_x);
+ xd->plane[2].dst.buf = dst_buf[2] +
+ (r >> xd->plane[2].subsampling_y) * dst_stride[2] +
+ (c >> xd->plane[2].subsampling_x);
+
+ if (!b_sub8x8)
+ av1_build_inter_predictors_sb_extend(xd,
+#if CONFIG_EXT_INTER
+ mi_row_ori, mi_col_ori,
+#endif // CONFIG_EXT_INTER
+ mi_row_pred, mi_col_pred, bsize_pred);
+ else
+ av1_build_inter_predictors_sb_sub8x8_extend(xd,
+#if CONFIG_EXT_INTER
+ mi_row_ori, mi_col_ori,
+#endif // CONFIG_EXT_INTER
+ mi_row_pred, mi_col_pred,
+ bsize_pred, block);
+}
+
+static void dec_extend_dir(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+ const TileInfo *const tile, int block,
+ BLOCK_SIZE bsize, BLOCK_SIZE top_bsize, int mi_row,
+ int mi_col, int mi_row_top, int mi_col_top,
+ uint8_t *dst_buf[3], int dst_stride[3], int dir) {
+ // dir: 0-lower, 1-upper, 2-left, 3-right
+ // 4-lowerleft, 5-upperleft, 6-lowerright, 7-upperright
+ const int mi_width = mi_size_wide[bsize];
+ const int mi_height = mi_size_high[bsize];
+ int xss = xd->plane[1].subsampling_x;
+ int yss = xd->plane[1].subsampling_y;
+#if CONFIG_CB4X4
+ const int unify_bsize = 1;
+#else
+ const int unify_bsize = 0;
+#endif
+ int b_sub8x8 = (bsize < BLOCK_8X8) && !unify_bsize ? 1 : 0;
+ BLOCK_SIZE extend_bsize;
+ int mi_row_pred, mi_col_pred;
+
+ int wide_unit, high_unit;
+ int i, j;
+ int ext_offset = 0;
+
+ if (dir == 0 || dir == 1) {
+ extend_bsize =
+ (mi_width == mi_size_wide[BLOCK_8X8] || bsize < BLOCK_8X8 || xss < yss)
+ ? BLOCK_8X8
+ : BLOCK_16X8;
+#if CONFIG_CB4X4
+ if (bsize < BLOCK_8X8) {
+ extend_bsize = BLOCK_4X4;
+ ext_offset = mi_size_wide[BLOCK_8X8];
+ }
+#endif
+
+ wide_unit = mi_size_wide[extend_bsize];
+ high_unit = mi_size_high[extend_bsize];
+
+ mi_row_pred = mi_row + ((dir == 0) ? mi_height : -(mi_height + ext_offset));
+ mi_col_pred = mi_col;
+
+ for (j = 0; j < mi_height + ext_offset; j += high_unit)
+ for (i = 0; i < mi_width + ext_offset; i += wide_unit)
+ dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col,
+ mi_row_pred + j, mi_col_pred + i, mi_row_top,
+ mi_col_top, dst_buf, dst_stride, top_bsize,
+ extend_bsize, b_sub8x8, 1);
+ } else if (dir == 2 || dir == 3) {
+ extend_bsize =
+ (mi_height == mi_size_high[BLOCK_8X8] || bsize < BLOCK_8X8 || yss < xss)
+ ? BLOCK_8X8
+ : BLOCK_8X16;
+#if CONFIG_CB4X4
+ if (bsize < BLOCK_8X8) {
+ extend_bsize = BLOCK_4X4;
+ ext_offset = mi_size_wide[BLOCK_8X8];
+ }
+#endif
+
+ wide_unit = mi_size_wide[extend_bsize];
+ high_unit = mi_size_high[extend_bsize];
+
+ mi_row_pred = mi_row;
+ mi_col_pred = mi_col + ((dir == 3) ? mi_width : -(mi_width + ext_offset));
+
+ for (j = 0; j < mi_height + ext_offset; j += high_unit)
+ for (i = 0; i < mi_width + ext_offset; i += wide_unit)
+ dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col,
+ mi_row_pred + j, mi_col_pred + i, mi_row_top,
+ mi_col_top, dst_buf, dst_stride, top_bsize,
+ extend_bsize, b_sub8x8, 1);
+ } else {
+ extend_bsize = BLOCK_8X8;
+#if CONFIG_CB4X4
+ if (bsize < BLOCK_8X8) {
+ extend_bsize = BLOCK_4X4;
+ ext_offset = mi_size_wide[BLOCK_8X8];
+ }
+#endif
+ wide_unit = mi_size_wide[extend_bsize];
+ high_unit = mi_size_high[extend_bsize];
+
+ mi_row_pred = mi_row + ((dir == 4 || dir == 6) ? mi_height
+ : -(mi_height + ext_offset));
+ mi_col_pred =
+ mi_col + ((dir == 6 || dir == 7) ? mi_width : -(mi_width + ext_offset));
+
+ for (j = 0; j < mi_height + ext_offset; j += high_unit)
+ for (i = 0; i < mi_width + ext_offset; i += wide_unit)
+ dec_predict_b_extend(pbi, xd, tile, block, mi_row, mi_col,
+ mi_row_pred + j, mi_col_pred + i, mi_row_top,
+ mi_col_top, dst_buf, dst_stride, top_bsize,
+ extend_bsize, b_sub8x8, 1);
+ }
+}
+
+static void dec_extend_all(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+ const TileInfo *const tile, int block,
+ BLOCK_SIZE bsize, BLOCK_SIZE top_bsize, int mi_row,
+ int mi_col, int mi_row_top, int mi_col_top,
+ uint8_t *dst_buf[3], int dst_stride[3]) {
+ for (int i = 0; i < 8; ++i) {
+ dec_extend_dir(pbi, xd, tile, block, bsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride, i);
+ }
+}
+
+static void dec_predict_sb_complex(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+ const TileInfo *const tile, int mi_row,
+ int mi_col, int mi_row_top, int mi_col_top,
+ BLOCK_SIZE bsize, BLOCK_SIZE top_bsize,
+ uint8_t *dst_buf[3], int dst_stride[3]) {
+ const AV1_COMMON *const cm = &pbi->common;
+ const int hbs = mi_size_wide[bsize] / 2;
+ const PARTITION_TYPE partition = get_partition(cm, mi_row, mi_col, bsize);
+ const BLOCK_SIZE subsize = get_subsize(bsize, partition);
+#if CONFIG_EXT_PARTITION_TYPES
+ const BLOCK_SIZE bsize2 = get_subsize(bsize, PARTITION_SPLIT);
+#endif
+ int i;
+ const int mi_offset = mi_row * cm->mi_stride + mi_col;
+ uint8_t *dst_buf1[3], *dst_buf2[3], *dst_buf3[3];
+#if CONFIG_CB4X4
+ const int unify_bsize = 1;
+#else
+ const int unify_bsize = 0;
+#endif
+
+ DECLARE_ALIGNED(16, uint8_t, tmp_buf1[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
+ DECLARE_ALIGNED(16, uint8_t, tmp_buf2[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
+ DECLARE_ALIGNED(16, uint8_t, tmp_buf3[MAX_MB_PLANE * MAX_TX_SQUARE * 2]);
+ int dst_stride1[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
+ int dst_stride2[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
+ int dst_stride3[3] = { MAX_TX_SIZE, MAX_TX_SIZE, MAX_TX_SIZE };
+
+#if CONFIG_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ int len = sizeof(uint16_t);
+ dst_buf1[0] = CONVERT_TO_BYTEPTR(tmp_buf1);
+ dst_buf1[1] = CONVERT_TO_BYTEPTR(tmp_buf1 + MAX_TX_SQUARE * len);
+ dst_buf1[2] = CONVERT_TO_BYTEPTR(tmp_buf1 + 2 * MAX_TX_SQUARE * len);
+ dst_buf2[0] = CONVERT_TO_BYTEPTR(tmp_buf2);
+ dst_buf2[1] = CONVERT_TO_BYTEPTR(tmp_buf2 + MAX_TX_SQUARE * len);
+ dst_buf2[2] = CONVERT_TO_BYTEPTR(tmp_buf2 + 2 * MAX_TX_SQUARE * len);
+ dst_buf3[0] = CONVERT_TO_BYTEPTR(tmp_buf3);
+ dst_buf3[1] = CONVERT_TO_BYTEPTR(tmp_buf3 + MAX_TX_SQUARE * len);
+ dst_buf3[2] = CONVERT_TO_BYTEPTR(tmp_buf3 + 2 * MAX_TX_SQUARE * len);
+ } else {
+#endif
+ dst_buf1[0] = tmp_buf1;
+ dst_buf1[1] = tmp_buf1 + MAX_TX_SQUARE;
+ dst_buf1[2] = tmp_buf1 + 2 * MAX_TX_SQUARE;
+ dst_buf2[0] = tmp_buf2;
+ dst_buf2[1] = tmp_buf2 + MAX_TX_SQUARE;
+ dst_buf2[2] = tmp_buf2 + 2 * MAX_TX_SQUARE;
+ dst_buf3[0] = tmp_buf3;
+ dst_buf3[1] = tmp_buf3 + MAX_TX_SQUARE;
+ dst_buf3[2] = tmp_buf3 + 2 * MAX_TX_SQUARE;
+#if CONFIG_HIGHBITDEPTH
+ }
+#endif
+
+ if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return;
+
+ xd->mi = cm->mi_grid_visible + mi_offset;
+ xd->mi[0] = cm->mi + mi_offset;
+
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ }
+
+ switch (partition) {
+ case PARTITION_NONE:
+ assert(bsize < top_bsize);
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, bsize, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ break;
+ case PARTITION_HORZ:
+ if (bsize == BLOCK_8X8 && !unify_bsize) {
+ // For sub8x8, predict in 8x8 unit
+ // First half
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, BLOCK_8X8, 1, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+
+ // Second half
+ dec_predict_b_extend(pbi, xd, tile, 2, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1,
+ top_bsize, BLOCK_8X8, 1, 1);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 2, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ // weighted average to smooth the boundary
+ xd->plane[0].dst.buf = dst_buf[0];
+ xd->plane[0].dst.stride = dst_stride[0];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[0], dst_stride[0], dst_buf1[0], dst_stride1[0], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_HORZ,
+ 0);
+ } else {
+ // First half
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride, 0);
+
+ if (mi_row + hbs < cm->mi_rows) {
+ // Second half
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col,
+ mi_row + hbs, mi_col, mi_row_top, mi_col_top,
+ dst_buf1, dst_stride1, top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, 1);
+
+ // weighted average to smooth the boundary
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_HORZ, i);
+ }
+ }
+ }
+ break;
+ case PARTITION_VERT:
+ if (bsize == BLOCK_8X8 && !unify_bsize) {
+ // First half
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, BLOCK_8X8, 1, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+
+ // Second half
+ dec_predict_b_extend(pbi, xd, tile, 1, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1,
+ top_bsize, BLOCK_8X8, 1, 1);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 1, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ // Smooth
+ xd->plane[0].dst.buf = dst_buf[0];
+ xd->plane[0].dst.stride = dst_stride[0];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[0], dst_stride[0], dst_buf1[0], dst_stride1[0], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_VERT,
+ 0);
+ } else {
+ // First half
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride, 3);
+
+ // Second half
+ if (mi_col + hbs < cm->mi_cols) {
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, 2);
+
+ // Smooth
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_VERT, i);
+ }
+ }
+ }
+ break;
+ case PARTITION_SPLIT:
+ if (bsize == BLOCK_8X8 && !unify_bsize) {
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, BLOCK_8X8, 1, 0);
+ dec_predict_b_extend(pbi, xd, tile, 1, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1,
+ top_bsize, BLOCK_8X8, 1, 1);
+ dec_predict_b_extend(pbi, xd, tile, 2, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf2, dst_stride2,
+ top_bsize, BLOCK_8X8, 1, 1);
+ dec_predict_b_extend(pbi, xd, tile, 3, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf3, dst_stride3,
+ top_bsize, BLOCK_8X8, 1, 1);
+ if (bsize < top_bsize) {
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ dec_extend_all(pbi, xd, tile, 1, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+ dec_extend_all(pbi, xd, tile, 2, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf2, dst_stride2);
+ dec_extend_all(pbi, xd, tile, 3, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf3, dst_stride3);
+ }
+ } else {
+ dec_predict_sb_complex(pbi, xd, tile, mi_row, mi_col, mi_row_top,
+ mi_col_top, subsize, top_bsize, dst_buf,
+ dst_stride);
+ if (mi_row < cm->mi_rows && mi_col + hbs < cm->mi_cols)
+ dec_predict_sb_complex(pbi, xd, tile, mi_row, mi_col + hbs,
+ mi_row_top, mi_col_top, subsize, top_bsize,
+ dst_buf1, dst_stride1);
+ if (mi_row + hbs < cm->mi_rows && mi_col < cm->mi_cols)
+ dec_predict_sb_complex(pbi, xd, tile, mi_row + hbs, mi_col,
+ mi_row_top, mi_col_top, subsize, top_bsize,
+ dst_buf2, dst_stride2);
+ if (mi_row + hbs < cm->mi_rows && mi_col + hbs < cm->mi_cols)
+ dec_predict_sb_complex(pbi, xd, tile, mi_row + hbs, mi_col + hbs,
+ mi_row_top, mi_col_top, subsize, top_bsize,
+ dst_buf3, dst_stride3);
+ }
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+#if !CONFIG_CB4X4
+ if (bsize == BLOCK_8X8 && i != 0)
+ continue; // Skip <4x4 chroma smoothing
+#endif
+ if (mi_row < cm->mi_rows && mi_col + hbs < cm->mi_cols) {
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_VERT, i);
+ if (mi_row + hbs < cm->mi_rows) {
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf2[i], dst_stride2[i], dst_buf3[i], dst_stride3[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_VERT, i);
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_HORZ, i);
+ }
+ } else if (mi_row + hbs < cm->mi_rows && mi_col < cm->mi_cols) {
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_HORZ, i);
+ }
+ }
+ break;
+#if CONFIG_EXT_PARTITION_TYPES
+ case PARTITION_HORZ_A:
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col + hbs,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2, top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf2, dst_stride2);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf2, dst_stride2,
+ 1);
+
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_VERT,
+ i);
+ }
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_HORZ,
+ i);
+ }
+ break;
+ case PARTITION_VERT_A:
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row + hbs, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2, top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2, 2);
+
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_HORZ,
+ i);
+ }
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf2[i], dst_stride2[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_VERT,
+ i);
+ }
+ break;
+ case PARTITION_HORZ_B:
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride, 0);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col, mi_row + hbs,
+ mi_col, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row + hbs, mi_col,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col + hbs,
+ mi_row + hbs, mi_col + hbs, mi_row_top, mi_col_top,
+ dst_buf2, dst_stride2, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row + hbs,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2);
+
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf1[i];
+ xd->plane[i].dst.stride = dst_stride1[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf1[i], dst_stride1[i], dst_buf2[i], dst_stride2[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_VERT, i);
+ }
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_HORZ,
+ i);
+ }
+ break;
+ case PARTITION_VERT_B:
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride,
+ top_bsize, subsize, 0, 0);
+ if (bsize < top_bsize)
+ dec_extend_all(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride);
+ else
+ dec_extend_dir(pbi, xd, tile, 0, subsize, top_bsize, mi_row, mi_col,
+ mi_row_top, mi_col_top, dst_buf, dst_stride, 3);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row, mi_col + hbs, mi_row,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf1,
+ dst_stride1, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row, mi_col + hbs,
+ mi_row_top, mi_col_top, dst_buf1, dst_stride1);
+
+ dec_predict_b_extend(pbi, xd, tile, 0, mi_row + hbs, mi_col + hbs,
+ mi_row + hbs, mi_col + hbs, mi_row_top, mi_col_top,
+ dst_buf2, dst_stride2, top_bsize, bsize2, 0, 0);
+ dec_extend_all(pbi, xd, tile, 0, bsize2, top_bsize, mi_row + hbs,
+ mi_col + hbs, mi_row_top, mi_col_top, dst_buf2,
+ dst_stride2);
+
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf1[i];
+ xd->plane[i].dst.stride = dst_stride1[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf1[i], dst_stride1[i], dst_buf2[i], dst_stride2[i],
+ mi_row, mi_col, mi_row_top, mi_col_top, bsize, top_bsize,
+ PARTITION_HORZ, i);
+ }
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ xd->plane[i].dst.buf = dst_buf[i];
+ xd->plane[i].dst.stride = dst_stride[i];
+ av1_build_masked_inter_predictor_complex(
+ xd, dst_buf[i], dst_stride[i], dst_buf1[i], dst_stride1[i], mi_row,
+ mi_col, mi_row_top, mi_col_top, bsize, top_bsize, PARTITION_VERT,
+ i);
+ }
+ break;
+#endif // CONFIG_EXT_PARTITION_TYPES
+ default: assert(0);
+ }
+}
+
+static void set_segment_id_supertx(const AV1_COMMON *const cm, int mi_row,
+ int mi_col, BLOCK_SIZE bsize) {
+ const struct segmentation *seg = &cm->seg;
+ const int miw = AOMMIN(mi_size_wide[bsize], cm->mi_cols - mi_col);
+ const int mih = AOMMIN(mi_size_high[bsize], cm->mi_rows - mi_row);
+ const int mi_offset = mi_row * cm->mi_stride + mi_col;
+ MODE_INFO **const mip = cm->mi_grid_visible + mi_offset;
+ int r, c;
+ int seg_id_supertx = MAX_SEGMENTS;
+
+ if (!seg->enabled) {
+ seg_id_supertx = 0;
+ } else {
+ // Find the minimum segment_id
+ for (r = 0; r < mih; r++)
+ for (c = 0; c < miw; c++)
+ seg_id_supertx =
+ AOMMIN(mip[r * cm->mi_stride + c]->mbmi.segment_id, seg_id_supertx);
+ assert(0 <= seg_id_supertx && seg_id_supertx < MAX_SEGMENTS);
+ }
+
+ // Assign the the segment_id back to segment_id_supertx
+ for (r = 0; r < mih; r++)
+ for (c = 0; c < miw; c++)
+ mip[r * cm->mi_stride + c]->mbmi.segment_id_supertx = seg_id_supertx;
+}
+#endif // CONFIG_SUPERTX
+
+static void decode_mbmi_block(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif // CONFIG_SUPERTX
+ int mi_row, int mi_col, aom_reader *r,
+#if CONFIG_EXT_PARTITION_TYPES
+ PARTITION_TYPE partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+ const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col);
+ const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row);
+
+#if CONFIG_ACCOUNTING
+ aom_accounting_set_context(&pbi->accounting, mi_col, mi_row);
+#endif
+#if CONFIG_SUPERTX
+ if (supertx_enabled) {
+ set_mb_offsets(cm, xd, bsize, mi_row, mi_col, bw, bh, x_mis, y_mis);
+ } else {
+ set_offsets(cm, xd, bsize, mi_row, mi_col, bw, bh, x_mis, y_mis);
+ }
+#if CONFIG_EXT_PARTITION_TYPES
+ xd->mi[0]->mbmi.partition = partition;
+#endif
+ av1_read_mode_info(pbi, xd, supertx_enabled, mi_row, mi_col, r, x_mis, y_mis);
+#else
+ set_offsets(cm, xd, bsize, mi_row, mi_col, bw, bh, x_mis, y_mis);
+#if CONFIG_EXT_PARTITION_TYPES
+ xd->mi[0]->mbmi.partition = partition;
+#endif
+ av1_read_mode_info(pbi, xd, mi_row, mi_col, r, x_mis, y_mis);
+#endif // CONFIG_SUPERTX
+
+ if (bsize >= BLOCK_8X8 && (cm->subsampling_x || cm->subsampling_y)) {
+ const BLOCK_SIZE uv_subsize =
+ ss_size_lookup[bsize][cm->subsampling_x][cm->subsampling_y];
+ if (uv_subsize == BLOCK_INVALID)
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid block size.");
+ }
+
+#if CONFIG_SUPERTX
+ xd->mi[0]->mbmi.segment_id_supertx = MAX_SEGMENTS;
+#endif // CONFIG_SUPERTX
+
+ int reader_corrupted_flag = aom_reader_has_error(r);
+ aom_merge_corrupted_flag(&xd->corrupted, reader_corrupted_flag);
+}
+
+static void decode_token_and_recon_block(AV1Decoder *const pbi,
+ MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r,
+ BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+ const int x_mis = AOMMIN(bw, cm->mi_cols - mi_col);
+ const int y_mis = AOMMIN(bh, cm->mi_rows - mi_row);
+
+ set_offsets(cm, xd, bsize, mi_row, mi_col, bw, bh, x_mis, y_mis);
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+
+#if CONFIG_DELTA_Q
+ if (cm->delta_q_present_flag) {
+ int i;
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+#if CONFIG_EXT_DELTA_Q
+ xd->plane[0].seg_dequant[i][0] =
+ av1_dc_quant(av1_get_qindex(&cm->seg, i, xd->current_qindex),
+ cm->y_dc_delta_q, cm->bit_depth);
+ xd->plane[0].seg_dequant[i][1] = av1_ac_quant(
+ av1_get_qindex(&cm->seg, i, xd->current_qindex), 0, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][0] =
+ av1_dc_quant(av1_get_qindex(&cm->seg, i, xd->current_qindex),
+ cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][1] =
+ av1_ac_quant(av1_get_qindex(&cm->seg, i, xd->current_qindex),
+ cm->uv_ac_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][0] =
+ av1_dc_quant(av1_get_qindex(&cm->seg, i, xd->current_qindex),
+ cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][1] =
+ av1_ac_quant(av1_get_qindex(&cm->seg, i, xd->current_qindex),
+ cm->uv_ac_delta_q, cm->bit_depth);
+#else
+ xd->plane[0].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->y_dc_delta_q, cm->bit_depth);
+ xd->plane[0].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, 0, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, cm->uv_ac_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, cm->uv_ac_delta_q, cm->bit_depth);
+#endif
+ }
+ }
+#endif
+
+#if CONFIG_CB4X4
+ if (mbmi->skip) reset_skip_context(xd, bsize);
+#else
+ if (mbmi->skip) reset_skip_context(xd, AOMMAX(BLOCK_8X8, bsize));
+#endif
+
+#if CONFIG_COEF_INTERLEAVE
+ {
+ const struct macroblockd_plane *const pd_y = &xd->plane[0];
+ const struct macroblockd_plane *const pd_c = &xd->plane[1];
+ const TX_SIZE tx_log2_y = mbmi->tx_size;
+ const TX_SIZE tx_log2_c = get_uv_tx_size(mbmi, pd_c);
+ const int tx_sz_y = (1 << tx_log2_y);
+ const int tx_sz_c = (1 << tx_log2_c);
+ const int num_4x4_w_y = pd_y->n4_w;
+ const int num_4x4_h_y = pd_y->n4_h;
+ const int num_4x4_w_c = pd_c->n4_w;
+ const int num_4x4_h_c = pd_c->n4_h;
+ const int max_4x4_w_y = get_max_4x4_size(num_4x4_w_y, xd->mb_to_right_edge,
+ pd_y->subsampling_x);
+ const int max_4x4_h_y = get_max_4x4_size(num_4x4_h_y, xd->mb_to_bottom_edge,
+ pd_y->subsampling_y);
+ const int max_4x4_w_c = get_max_4x4_size(num_4x4_w_c, xd->mb_to_right_edge,
+ pd_c->subsampling_x);
+ const int max_4x4_h_c = get_max_4x4_size(num_4x4_h_c, xd->mb_to_bottom_edge,
+ pd_c->subsampling_y);
+
+ // The max_4x4_w/h may be smaller than tx_sz under some corner cases,
+ // i.e. when the SB is splitted by tile boundaries.
+ const int tu_num_w_y = (max_4x4_w_y + tx_sz_y - 1) / tx_sz_y;
+ const int tu_num_h_y = (max_4x4_h_y + tx_sz_y - 1) / tx_sz_y;
+ const int tu_num_w_c = (max_4x4_w_c + tx_sz_c - 1) / tx_sz_c;
+ const int tu_num_h_c = (max_4x4_h_c + tx_sz_c - 1) / tx_sz_c;
+ const int tu_num_c = tu_num_w_c * tu_num_h_c;
+
+ if (!is_inter_block(mbmi)) {
+ int tu_idx_c = 0;
+ int row_y, col_y, row_c, col_c;
+ int plane;
+
+#if CONFIG_PALETTE
+ for (plane = 0; plane <= 1; ++plane) {
+ if (mbmi->palette_mode_info.palette_size[plane])
+ av1_decode_palette_tokens(xd, plane, r);
+ }
+#endif
+
+ for (row_y = 0; row_y < tu_num_h_y; row_y++) {
+ for (col_y = 0; col_y < tu_num_w_y; col_y++) {
+ // luma
+ predict_and_reconstruct_intra_block(
+ cm, xd, r, mbmi, 0, row_y * tx_sz_y, col_y * tx_sz_y, tx_log2_y);
+ // chroma
+ if (tu_idx_c < tu_num_c) {
+ row_c = (tu_idx_c / tu_num_w_c) * tx_sz_c;
+ col_c = (tu_idx_c % tu_num_w_c) * tx_sz_c;
+ predict_and_reconstruct_intra_block(cm, xd, r, mbmi, 1, row_c,
+ col_c, tx_log2_c);
+ predict_and_reconstruct_intra_block(cm, xd, r, mbmi, 2, row_c,
+ col_c, tx_log2_c);
+ tu_idx_c++;
+ }
+ }
+ }
+
+ // In 422 case, it's possilbe that Chroma has more TUs than Luma
+ while (tu_idx_c < tu_num_c) {
+ row_c = (tu_idx_c / tu_num_w_c) * tx_sz_c;
+ col_c = (tu_idx_c % tu_num_w_c) * tx_sz_c;
+ predict_and_reconstruct_intra_block(cm, xd, r, mbmi, 1, row_c, col_c,
+ tx_log2_c);
+ predict_and_reconstruct_intra_block(cm, xd, r, mbmi, 2, row_c, col_c,
+ tx_log2_c);
+ tu_idx_c++;
+ }
+ } else {
+ // Prediction
+ av1_build_inter_predictors_sb(xd, mi_row, mi_col, NULL,
+ AOMMAX(bsize, BLOCK_8X8));
+
+ // Reconstruction
+ if (!mbmi->skip) {
+ int eobtotal = 0;
+ int tu_idx_c = 0;
+ int row_y, col_y, row_c, col_c;
+
+ for (row_y = 0; row_y < tu_num_h_y; row_y++) {
+ for (col_y = 0; col_y < tu_num_w_y; col_y++) {
+ // luma
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id, 0,
+ row_y * tx_sz_y,
+ col_y * tx_sz_y, tx_log2_y);
+ // chroma
+ if (tu_idx_c < tu_num_c) {
+ row_c = (tu_idx_c / tu_num_w_c) * tx_sz_c;
+ col_c = (tu_idx_c % tu_num_w_c) * tx_sz_c;
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id,
+ 1, row_c, col_c, tx_log2_c);
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id,
+ 2, row_c, col_c, tx_log2_c);
+ tu_idx_c++;
+ }
+ }
+ }
+
+ // In 422 case, it's possilbe that Chroma has more TUs than Luma
+ while (tu_idx_c < tu_num_c) {
+ row_c = (tu_idx_c / tu_num_w_c) * tx_sz_c;
+ col_c = (tu_idx_c % tu_num_w_c) * tx_sz_c;
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id, 1,
+ row_c, col_c, tx_log2_c);
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id, 2,
+ row_c, col_c, tx_log2_c);
+ tu_idx_c++;
+ }
+
+ // TODO(CONFIG_COEF_INTERLEAVE owners): bring eob == 0 corner case
+ // into line with the defaut configuration
+ if (bsize >= BLOCK_8X8 && eobtotal == 0) mbmi->skip = 1;
+ }
+ }
+ }
+#else // CONFIG_COEF_INTERLEAVE
+ if (!is_inter_block(mbmi)) {
+ int plane;
+#if CONFIG_PALETTE
+ for (plane = 0; plane <= 1; ++plane) {
+ if (mbmi->palette_mode_info.palette_size[plane])
+ av1_decode_palette_tokens(xd, plane, r);
+ }
+#endif // CONFIG_PALETTE
+ for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ const TX_SIZE tx_size = get_tx_size(plane, xd);
+ const int stepr = tx_size_high_unit[tx_size];
+ const int stepc = tx_size_wide_unit[tx_size];
+#if CONFIG_CB4X4
+#if CONFIG_CHROMA_2X2
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+#else
+ const BLOCK_SIZE plane_bsize =
+ AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd));
+#endif // CONFIG_CHROMA_2X2
+#else
+ const BLOCK_SIZE plane_bsize =
+ get_plane_block_size(AOMMAX(BLOCK_8X8, bsize), pd);
+#endif
+ int row, col;
+ const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
+ const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
+#if CONFIG_CB4X4
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+#endif
+
+ for (row = 0; row < max_blocks_high; row += stepr)
+ for (col = 0; col < max_blocks_wide; col += stepc)
+ predict_and_reconstruct_intra_block(cm, xd, r, mbmi, plane, row, col,
+ tx_size);
+ }
+ } else {
+ int ref;
+
+ for (ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) {
+ const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
+ if (frame < LAST_FRAME) {
+#if CONFIG_INTRABC
+ assert(is_intrabc_block(mbmi));
+ assert(frame == INTRA_FRAME);
+ assert(ref == 0);
+#else
+ assert(0);
+#endif // CONFIG_INTRABC
+ } else {
+ RefBuffer *ref_buf = &cm->frame_refs[frame - LAST_FRAME];
+
+ xd->block_refs[ref] = ref_buf;
+ if ((!av1_is_valid_scale(&ref_buf->sf)))
+ aom_internal_error(xd->error_info, AOM_CODEC_UNSUP_BITSTREAM,
+ "Reference frame has invalid dimensions");
+ av1_setup_pre_planes(xd, ref, ref_buf->buf, mi_row, mi_col,
+ &ref_buf->sf);
+ }
+ }
+
+#if CONFIG_CB4X4
+ av1_build_inter_predictors_sb(xd, mi_row, mi_col, NULL, bsize);
+#else
+ av1_build_inter_predictors_sb(xd, mi_row, mi_col, NULL,
+ AOMMAX(bsize, BLOCK_8X8));
+#endif
+
+#if CONFIG_MOTION_VAR
+ if (mbmi->motion_mode == OBMC_CAUSAL) {
+#if CONFIG_NCOBMC
+ av1_build_ncobmc_inter_predictors_sb(cm, xd, mi_row, mi_col);
+#else
+ av1_build_obmc_inter_predictors_sb(cm, xd, mi_row, mi_col);
+#endif
+ }
+#endif // CONFIG_MOTION_VAR
+
+ // Reconstruction
+ if (!mbmi->skip) {
+ int eobtotal = 0;
+ int plane;
+
+ for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+#if CONFIG_CB4X4
+#if CONFIG_CHROMA_2X2
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+#else
+ const BLOCK_SIZE plane_bsize =
+ AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd));
+#endif // CONFIG_CHROMA_2X2
+#else
+ const BLOCK_SIZE plane_bsize =
+ get_plane_block_size(AOMMAX(BLOCK_8X8, bsize), pd);
+#endif
+ const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
+ const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
+ int row, col;
+
+#if CONFIG_CB4X4
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+#endif
+
+#if CONFIG_VAR_TX
+ const TX_SIZE max_tx_size = get_vartx_max_txsize(mbmi, plane_bsize);
+ const int bh_var_tx = tx_size_high_unit[max_tx_size];
+ const int bw_var_tx = tx_size_wide_unit[max_tx_size];
+ for (row = 0; row < max_blocks_high; row += bh_var_tx)
+ for (col = 0; col < max_blocks_wide; col += bw_var_tx)
+ decode_reconstruct_tx(cm, xd, r, mbmi, plane, plane_bsize, row, col,
+ max_tx_size, &eobtotal);
+#else
+ const TX_SIZE tx_size = get_tx_size(plane, xd);
+ const int stepr = tx_size_high_unit[tx_size];
+ const int stepc = tx_size_wide_unit[tx_size];
+ for (row = 0; row < max_blocks_high; row += stepr)
+ for (col = 0; col < max_blocks_wide; col += stepc)
+ eobtotal += reconstruct_inter_block(cm, xd, r, mbmi->segment_id,
+ plane, row, col, tx_size);
+#endif
+ }
+ }
+ }
+#endif // CONFIG_COEF_INTERLEAVE
+
+ int reader_corrupted_flag = aom_reader_has_error(r);
+ aom_merge_corrupted_flag(&xd->corrupted, reader_corrupted_flag);
+}
+
+#if CONFIG_NCOBMC && CONFIG_MOTION_VAR
+static void detoken_and_recon_sb(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r,
+ BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int hbs = mi_size_wide[bsize] >> 1;
+#if CONFIG_CB4X4
+ const int unify_bsize = 1;
+#else
+ const int unify_bsize = 0;
+#endif
+#if CONFIG_EXT_PARTITION_TYPES
+ BLOCK_SIZE bsize2 = get_subsize(bsize, PARTITION_SPLIT);
+#endif
+ PARTITION_TYPE partition;
+ BLOCK_SIZE subsize;
+ const int has_rows = (mi_row + hbs) < cm->mi_rows;
+ const int has_cols = (mi_col + hbs) < cm->mi_cols;
+
+ if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return;
+
+ partition = get_partition(cm, mi_row, mi_col, bsize);
+ subsize = subsize_lookup[partition][bsize];
+
+ if (!hbs && !unify_bsize) {
+ xd->bmode_blocks_wl = 1 >> !!(partition & PARTITION_VERT);
+ xd->bmode_blocks_hl = 1 >> !!(partition & PARTITION_HORZ);
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, subsize);
+ } else {
+ switch (partition) {
+ case PARTITION_NONE:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, bsize);
+ break;
+ case PARTITION_HORZ:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, subsize);
+ if (has_rows)
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col, r,
+ subsize);
+ break;
+ case PARTITION_VERT:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, subsize);
+ if (has_cols)
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col + hbs, r,
+ subsize);
+ break;
+ case PARTITION_SPLIT:
+ detoken_and_recon_sb(pbi, xd, mi_row, mi_col, r, subsize);
+ detoken_and_recon_sb(pbi, xd, mi_row, mi_col + hbs, r, subsize);
+ detoken_and_recon_sb(pbi, xd, mi_row + hbs, mi_col, r, subsize);
+ detoken_and_recon_sb(pbi, xd, mi_row + hbs, mi_col + hbs, r, subsize);
+ break;
+#if CONFIG_EXT_PARTITION_TYPES
+ case PARTITION_HORZ_A:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col + hbs, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col, r, subsize);
+ break;
+ case PARTITION_HORZ_B:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, subsize);
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col + hbs, r,
+ bsize2);
+ break;
+ case PARTITION_VERT_A:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col + hbs, r, subsize);
+ break;
+ case PARTITION_VERT_B:
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, subsize);
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col + hbs, r, bsize2);
+ decode_token_and_recon_block(pbi, xd, mi_row + hbs, mi_col + hbs, r,
+ bsize2);
+ break;
+#endif
+ default: assert(0 && "Invalid partition type");
+ }
+ }
+}
+#endif
+
+static void decode_block(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif // CONFIG_SUPERTX
+ int mi_row, int mi_col, aom_reader *r,
+#if CONFIG_EXT_PARTITION_TYPES
+ PARTITION_TYPE partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ BLOCK_SIZE bsize) {
+ decode_mbmi_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif
+ bsize);
+#if !(CONFIG_MOTION_VAR && CONFIG_NCOBMC)
+#if CONFIG_SUPERTX
+ if (!supertx_enabled)
+#endif // CONFIG_SUPERTX
+ decode_token_and_recon_block(pbi, xd, mi_row, mi_col, r, bsize);
+#endif
+}
+
+static PARTITION_TYPE read_partition(AV1_COMMON *cm, MACROBLOCKD *xd,
+ int mi_row, int mi_col, aom_reader *r,
+ int has_rows, int has_cols,
+ BLOCK_SIZE bsize) {
+#if CONFIG_UNPOISON_PARTITION_CTX
+ const int ctx =
+ partition_plane_context(xd, mi_row, mi_col, has_rows, has_cols, bsize);
+ const aom_prob *const probs =
+ ctx < PARTITION_CONTEXTS ? cm->fc->partition_prob[ctx] : NULL;
+ FRAME_COUNTS *const counts = ctx < PARTITION_CONTEXTS ? xd->counts : NULL;
+#else
+ const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
+ const aom_prob *const probs = cm->fc->partition_prob[ctx];
+ FRAME_COUNTS *const counts = xd->counts;
+#endif
+ PARTITION_TYPE p;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ (void)cm;
+#elif CONFIG_EC_MULTISYMBOL
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+#if CONFIG_EC_MULTISYMBOL
+ aom_cdf_prob *partition_cdf = (ctx >= 0) ? ec_ctx->partition_cdf[ctx] : NULL;
+#endif
+
+ if (has_rows && has_cols)
+#if CONFIG_EXT_PARTITION_TYPES
+ if (bsize <= BLOCK_8X8)
+#if CONFIG_EC_MULTISYMBOL
+ p = (PARTITION_TYPE)aom_read_symbol(r, partition_cdf, PARTITION_TYPES,
+ ACCT_STR);
+#else
+ p = (PARTITION_TYPE)aom_read_tree(r, av1_partition_tree, probs, ACCT_STR);
+#endif
+ else
+#if CONFIG_EC_MULTISYMBOL
+ p = (PARTITION_TYPE)aom_read_symbol(r, partition_cdf, EXT_PARTITION_TYPES,
+ ACCT_STR);
+#else
+ p = (PARTITION_TYPE)aom_read_tree(r, av1_ext_partition_tree, probs,
+ ACCT_STR);
+#endif
+#else
+#if CONFIG_EC_MULTISYMBOL
+ p = (PARTITION_TYPE)aom_read_symbol(r, partition_cdf, PARTITION_TYPES,
+ ACCT_STR);
+#else
+ p = (PARTITION_TYPE)aom_read_tree(r, av1_partition_tree, probs, ACCT_STR);
+#endif
+#endif // CONFIG_EXT_PARTITION_TYPES
+ else if (!has_rows && has_cols)
+ p = aom_read(r, probs[1], ACCT_STR) ? PARTITION_SPLIT : PARTITION_HORZ;
+ else if (has_rows && !has_cols)
+ p = aom_read(r, probs[2], ACCT_STR) ? PARTITION_SPLIT : PARTITION_VERT;
+ else
+ p = PARTITION_SPLIT;
+
+ if (counts) ++counts->partition[ctx][p];
+
+ return p;
+}
+
+#if CONFIG_SUPERTX
+static int read_skip(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id,
+ aom_reader *r) {
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
+ return 1;
+ } else {
+ const int ctx = av1_get_skip_context(xd);
+ const int skip = aom_read(r, cm->fc->skip_probs[ctx], ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->skip[ctx][skip];
+ return skip;
+ }
+}
+#endif // CONFIG_SUPERTX
+
+// TODO(slavarnway): eliminate bsize and subsize in future commits
+static void decode_partition(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif
+ int mi_row, int mi_col, aom_reader *r,
+ BLOCK_SIZE bsize, int n4x4_l2) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int n8x8_l2 = n4x4_l2 - 1;
+ const int num_8x8_wh = mi_size_wide[bsize];
+ const int hbs = num_8x8_wh >> 1;
+#if CONFIG_CB4X4
+ const int unify_bsize = 1;
+#else
+ const int unify_bsize = 0;
+#endif
+ PARTITION_TYPE partition;
+ BLOCK_SIZE subsize;
+#if CONFIG_EXT_PARTITION_TYPES
+ BLOCK_SIZE bsize2 = get_subsize(bsize, PARTITION_SPLIT);
+#endif
+ const int has_rows = (mi_row + hbs) < cm->mi_rows;
+ const int has_cols = (mi_col + hbs) < cm->mi_cols;
+#if CONFIG_SUPERTX
+ const int read_token = !supertx_enabled;
+ int skip = 0;
+ TX_SIZE supertx_size = max_txsize_lookup[bsize];
+ const TileInfo *const tile = &xd->tile;
+ int txfm = DCT_DCT;
+#endif // CONFIG_SUPERTX
+
+ if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return;
+
+ partition = (bsize < BLOCK_8X8) ? PARTITION_NONE
+ : read_partition(cm, xd, mi_row, mi_col, r,
+ has_rows, has_cols, bsize);
+ subsize = subsize_lookup[partition][bsize]; // get_subsize(bsize, partition);
+
+#if CONFIG_PVQ
+ assert(partition < PARTITION_TYPES);
+ assert(subsize < BLOCK_SIZES);
+#endif
+#if CONFIG_SUPERTX
+ if (!frame_is_intra_only(cm) && partition != PARTITION_NONE &&
+ bsize <= MAX_SUPERTX_BLOCK_SIZE && !supertx_enabled && !xd->lossless[0]) {
+ const int supertx_context = partition_supertx_context_lookup[partition];
+ supertx_enabled = aom_read(
+ r, cm->fc->supertx_prob[supertx_context][supertx_size], ACCT_STR);
+ if (xd->counts)
+ xd->counts->supertx[supertx_context][supertx_size][supertx_enabled]++;
+#if CONFIG_VAR_TX
+ if (supertx_enabled) xd->supertx_size = supertx_size;
+#endif
+ }
+#endif // CONFIG_SUPERTX
+ if (!hbs && !unify_bsize) {
+ // calculate bmode block dimensions (log 2)
+ xd->bmode_blocks_wl = 1 >> !!(partition & PARTITION_VERT);
+ xd->bmode_blocks_hl = 1 >> !!(partition & PARTITION_HORZ);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ } else {
+ switch (partition) {
+ case PARTITION_NONE:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ break;
+ case PARTITION_HORZ:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ if (has_rows)
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row + hbs, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ break;
+ case PARTITION_VERT:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ if (has_cols)
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col + hbs, r,
+#if CONFIG_EXT_PARTITION_TYPES
+ partition,
+#endif // CONFIG_EXT_PARTITION_TYPES
+ subsize);
+ break;
+ case PARTITION_SPLIT:
+ decode_partition(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r, subsize, n8x8_l2);
+ decode_partition(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col + hbs, r, subsize, n8x8_l2);
+ decode_partition(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row + hbs, mi_col, r, subsize, n8x8_l2);
+ decode_partition(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row + hbs, mi_col + hbs, r, subsize, n8x8_l2);
+ break;
+#if CONFIG_EXT_PARTITION_TYPES
+ case PARTITION_HORZ_A:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col + hbs, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row + hbs, mi_col, r, partition, subsize);
+ break;
+ case PARTITION_HORZ_B:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col, r, partition, subsize);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row + hbs, mi_col, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row + hbs, mi_col + hbs, r, partition, bsize2);
+ break;
+ case PARTITION_VERT_A:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row + hbs, mi_col, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col + hbs, r, partition, subsize);
+ break;
+ case PARTITION_VERT_B:
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col, r, partition, subsize);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row, mi_col + hbs, r, partition, bsize2);
+ decode_block(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ mi_row + hbs, mi_col + hbs, r, partition, bsize2);
+ break;
+#endif
+ default: assert(0 && "Invalid partition type");
+ }
+ }
+
+#if CONFIG_SUPERTX
+ if (supertx_enabled && read_token) {
+ uint8_t *dst_buf[3];
+ int dst_stride[3], i;
+ int offset = mi_row * cm->mi_stride + mi_col;
+
+ set_segment_id_supertx(cm, mi_row, mi_col, bsize);
+
+#if CONFIG_DELTA_Q
+ if (cm->delta_q_present_flag) {
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ xd->plane[0].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->y_dc_delta_q, cm->bit_depth);
+ xd->plane[0].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, 0, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[1].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, cm->uv_ac_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][0] =
+ av1_dc_quant(xd->current_qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ xd->plane[2].seg_dequant[i][1] =
+ av1_ac_quant(xd->current_qindex, cm->uv_ac_delta_q, cm->bit_depth);
+ }
+ }
+#endif
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = cm->mi + offset;
+ set_mi_row_col(xd, tile, mi_row, mi_size_high[bsize], mi_col,
+ mi_size_wide[bsize],
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->dependent_horz_tiles,
+#endif // CONFIG_DEPENDENT_HORZTILES
+ cm->mi_rows, cm->mi_cols);
+ set_skip_context(xd, mi_row, mi_col);
+ skip = read_skip(cm, xd, xd->mi[0]->mbmi.segment_id_supertx, r);
+ if (skip) {
+ reset_skip_context(xd, bsize);
+ } else {
+#if CONFIG_EXT_TX
+ if (get_ext_tx_types(supertx_size, bsize, 1, cm->reduced_tx_set_used) >
+ 1) {
+ const int eset =
+ get_ext_tx_set(supertx_size, bsize, 1, cm->reduced_tx_set_used);
+ if (eset > 0) {
+ txfm = aom_read_tree(r, av1_ext_tx_inter_tree[eset],
+ cm->fc->inter_ext_tx_prob[eset][supertx_size],
+ ACCT_STR);
+ if (xd->counts) ++xd->counts->inter_ext_tx[eset][supertx_size][txfm];
+ }
+ }
+#else
+ if (supertx_size < TX_32X32) {
+ txfm = aom_read_tree(r, av1_ext_tx_tree,
+ cm->fc->inter_ext_tx_prob[supertx_size], ACCT_STR);
+ if (xd->counts) ++xd->counts->inter_ext_tx[supertx_size][txfm];
+ }
+#endif // CONFIG_EXT_TX
+ }
+
+ av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row,
+ mi_col);
+ for (i = 0; i < MAX_MB_PLANE; i++) {
+ dst_buf[i] = xd->plane[i].dst.buf;
+ dst_stride[i] = xd->plane[i].dst.stride;
+ }
+ dec_predict_sb_complex(pbi, xd, tile, mi_row, mi_col, mi_row, mi_col, bsize,
+ bsize, dst_buf, dst_stride);
+
+ if (!skip) {
+ int eobtotal = 0;
+ MB_MODE_INFO *mbmi;
+ set_offsets_topblock(cm, xd, tile, bsize, mi_row, mi_col);
+ mbmi = &xd->mi[0]->mbmi;
+ mbmi->tx_type = txfm;
+ assert(mbmi->segment_id_supertx != MAX_SEGMENTS);
+ for (i = 0; i < MAX_MB_PLANE; ++i) {
+ const struct macroblockd_plane *const pd = &xd->plane[i];
+ int row, col;
+ const TX_SIZE tx_size = get_tx_size(i, xd);
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+ const int stepr = tx_size_high_unit[tx_size];
+ const int stepc = tx_size_wide_unit[tx_size];
+ const int max_blocks_wide = max_block_wide(xd, plane_bsize, i);
+ const int max_blocks_high = max_block_high(xd, plane_bsize, i);
+
+ for (row = 0; row < max_blocks_high; row += stepr)
+ for (col = 0; col < max_blocks_wide; col += stepc)
+ eobtotal += reconstruct_inter_block(
+ cm, xd, r, mbmi->segment_id_supertx, i, row, col, tx_size);
+ }
+ if ((unify_bsize || !(subsize < BLOCK_8X8)) && eobtotal == 0) skip = 1;
+ }
+ set_param_topblock(cm, xd, bsize, mi_row, mi_col, txfm, skip);
+ }
+#endif // CONFIG_SUPERTX
+
+#if CONFIG_EXT_PARTITION_TYPES
+ update_ext_partition_context(xd, mi_row, mi_col, subsize, bsize, partition);
+#else
+ // update partition context
+ if (bsize >= BLOCK_8X8 &&
+ (bsize == BLOCK_8X8 || partition != PARTITION_SPLIT))
+ update_partition_context(xd, mi_row, mi_col, subsize, bsize);
+#endif // CONFIG_EXT_PARTITION_TYPES
+
+#if CONFIG_CDEF
+#if CONFIG_EXT_PARTITION
+ if (cm->sb_size == BLOCK_128X128 && bsize == BLOCK_128X128) {
+ if (!sb_all_skip(cm, mi_row, mi_col)) {
+ cm->mi_grid_visible[mi_row * cm->mi_stride + mi_col]->mbmi.cdef_strength =
+ aom_read_literal(r, cm->cdef_bits, ACCT_STR);
+ } else {
+ cm->mi_grid_visible[mi_row * cm->mi_stride + mi_col]->mbmi.cdef_strength =
+ 0;
+ }
+ } else if (cm->sb_size == BLOCK_64X64 && bsize == BLOCK_64X64) {
+#else
+ if (bsize == BLOCK_64X64) {
+#endif
+ if (!sb_all_skip(cm, mi_row, mi_col)) {
+ cm->mi_grid_visible[mi_row * cm->mi_stride + mi_col]->mbmi.cdef_strength =
+ aom_read_literal(r, cm->cdef_bits, ACCT_STR);
+ } else {
+ cm->mi_grid_visible[mi_row * cm->mi_stride + mi_col]->mbmi.cdef_strength =
+ -1;
+ }
+ }
+#endif // CONFIG_CDEF
+}
+
+static void setup_bool_decoder(const uint8_t *data, const uint8_t *data_end,
+ const size_t read_size,
+ struct aom_internal_error_info *error_info,
+ aom_reader *r,
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ int window_size,
+#endif // CONFIG_ANS && ANS_MAX_SYMBOLS
+ aom_decrypt_cb decrypt_cb, void *decrypt_state) {
+ // Validate the calculated partition length. If the buffer
+ // described by the partition can't be fully read, then restrict
+ // it to the portion that can be (for EC mode) or throw an error.
+ if (!read_is_valid(data, read_size, data_end))
+ aom_internal_error(error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile length");
+
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ r->window_size = window_size;
+#endif
+ if (aom_reader_init(r, data, read_size, decrypt_cb, decrypt_state))
+ aom_internal_error(error_info, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate bool decoder %d", 1);
+}
+
+#if !CONFIG_PVQ && !(CONFIG_EC_ADAPT && CONFIG_NEW_TOKENSET) && !CONFIG_LV_MAP
+static void read_coef_probs_common(av1_coeff_probs_model *coef_probs,
+ aom_reader *r) {
+ int i, j, k, l, m;
+#if CONFIG_EC_ADAPT
+ const int node_limit = UNCONSTRAINED_NODES - 1;
+#else
+ const int node_limit = UNCONSTRAINED_NODES;
+#endif
+
+ if (aom_read_bit(r, ACCT_STR))
+ for (i = 0; i < PLANE_TYPES; ++i)
+ for (j = 0; j < REF_TYPES; ++j)
+ for (k = 0; k < COEF_BANDS; ++k)
+ for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l)
+ for (m = 0; m < node_limit; ++m)
+ av1_diff_update_prob(r, &coef_probs[i][j][k][l][m], ACCT_STR);
+}
+
+static void read_coef_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode, aom_reader *r) {
+ const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
+ TX_SIZE tx_size;
+ for (tx_size = 0; tx_size <= max_tx_size; ++tx_size)
+ read_coef_probs_common(fc->coef_probs[tx_size], r);
+}
+#endif
+
+static void setup_segmentation(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb) {
+ struct segmentation *const seg = &cm->seg;
+ int i, j;
+
+ seg->update_map = 0;
+ seg->update_data = 0;
+
+ seg->enabled = aom_rb_read_bit(rb);
+ if (!seg->enabled) return;
+
+ // Segmentation map update
+ if (frame_is_intra_only(cm) || cm->error_resilient_mode) {
+ seg->update_map = 1;
+ } else {
+ seg->update_map = aom_rb_read_bit(rb);
+ }
+ if (seg->update_map) {
+ if (frame_is_intra_only(cm) || cm->error_resilient_mode) {
+ seg->temporal_update = 0;
+ } else {
+ seg->temporal_update = aom_rb_read_bit(rb);
+ }
+ }
+
+ // Segmentation data update
+ seg->update_data = aom_rb_read_bit(rb);
+ if (seg->update_data) {
+ seg->abs_delta = aom_rb_read_bit(rb);
+
+ av1_clearall_segfeatures(seg);
+
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ for (j = 0; j < SEG_LVL_MAX; j++) {
+ int data = 0;
+ const int feature_enabled = aom_rb_read_bit(rb);
+ if (feature_enabled) {
+ av1_enable_segfeature(seg, i, j);
+ data = decode_unsigned_max(rb, av1_seg_feature_data_max(j));
+ if (av1_is_segfeature_signed(j))
+ data = aom_rb_read_bit(rb) ? -data : data;
+ }
+ av1_set_segdata(seg, i, j, data);
+ }
+ }
+ }
+}
+
+#if CONFIG_LOOP_RESTORATION
+static void decode_restoration_mode(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ int p;
+ RestorationInfo *rsi = &cm->rst_info[0];
+ if (aom_rb_read_bit(rb)) {
+ rsi->frame_restoration_type =
+ aom_rb_read_bit(rb) ? RESTORE_SGRPROJ : RESTORE_WIENER;
+ } else {
+ rsi->frame_restoration_type =
+ aom_rb_read_bit(rb) ? RESTORE_SWITCHABLE : RESTORE_NONE;
+ }
+ for (p = 1; p < MAX_MB_PLANE; ++p) {
+ cm->rst_info[p].frame_restoration_type =
+ aom_rb_read_bit(rb) ? RESTORE_WIENER : RESTORE_NONE;
+ }
+
+ cm->rst_info[0].restoration_tilesize = RESTORATION_TILESIZE_MAX;
+ cm->rst_info[1].restoration_tilesize = RESTORATION_TILESIZE_MAX;
+ cm->rst_info[2].restoration_tilesize = RESTORATION_TILESIZE_MAX;
+ if (cm->rst_info[0].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[1].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[2].frame_restoration_type != RESTORE_NONE) {
+ rsi = &cm->rst_info[0];
+ rsi->restoration_tilesize >>= aom_rb_read_bit(rb);
+ if (rsi->restoration_tilesize != RESTORATION_TILESIZE_MAX) {
+ rsi->restoration_tilesize >>= aom_rb_read_bit(rb);
+ }
+ cm->rst_info[1].restoration_tilesize = cm->rst_info[0].restoration_tilesize;
+ cm->rst_info[2].restoration_tilesize = cm->rst_info[0].restoration_tilesize;
+ }
+}
+
+static void read_wiener_filter(WienerInfo *wiener_info,
+ WienerInfo *ref_wiener_info, aom_reader *rb) {
+ wiener_info->vfilter[0] = wiener_info->vfilter[WIENER_WIN - 1] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1,
+ WIENER_FILT_TAP0_SUBEXP_K,
+ ref_wiener_info->vfilter[0] - WIENER_FILT_TAP0_MINV) +
+ WIENER_FILT_TAP0_MINV;
+ wiener_info->vfilter[1] = wiener_info->vfilter[WIENER_WIN - 2] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1,
+ WIENER_FILT_TAP1_SUBEXP_K,
+ ref_wiener_info->vfilter[1] - WIENER_FILT_TAP1_MINV) +
+ WIENER_FILT_TAP1_MINV;
+ wiener_info->vfilter[2] = wiener_info->vfilter[WIENER_WIN - 3] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1,
+ WIENER_FILT_TAP2_SUBEXP_K,
+ ref_wiener_info->vfilter[2] - WIENER_FILT_TAP2_MINV) +
+ WIENER_FILT_TAP2_MINV;
+ // The central element has an implicit +WIENER_FILT_STEP
+ wiener_info->vfilter[WIENER_HALFWIN] =
+ -2 * (wiener_info->vfilter[0] + wiener_info->vfilter[1] +
+ wiener_info->vfilter[2]);
+
+ wiener_info->hfilter[0] = wiener_info->hfilter[WIENER_WIN - 1] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP0_MAXV - WIENER_FILT_TAP0_MINV + 1,
+ WIENER_FILT_TAP0_SUBEXP_K,
+ ref_wiener_info->hfilter[0] - WIENER_FILT_TAP0_MINV) +
+ WIENER_FILT_TAP0_MINV;
+ wiener_info->hfilter[1] = wiener_info->hfilter[WIENER_WIN - 2] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP1_MAXV - WIENER_FILT_TAP1_MINV + 1,
+ WIENER_FILT_TAP1_SUBEXP_K,
+ ref_wiener_info->hfilter[1] - WIENER_FILT_TAP1_MINV) +
+ WIENER_FILT_TAP1_MINV;
+ wiener_info->hfilter[2] = wiener_info->hfilter[WIENER_WIN - 3] =
+ aom_read_primitive_refsubexpfin(
+ rb, WIENER_FILT_TAP2_MAXV - WIENER_FILT_TAP2_MINV + 1,
+ WIENER_FILT_TAP2_SUBEXP_K,
+ ref_wiener_info->hfilter[2] - WIENER_FILT_TAP2_MINV) +
+ WIENER_FILT_TAP2_MINV;
+ // The central element has an implicit +WIENER_FILT_STEP
+ wiener_info->hfilter[WIENER_HALFWIN] =
+ -2 * (wiener_info->hfilter[0] + wiener_info->hfilter[1] +
+ wiener_info->hfilter[2]);
+ memcpy(ref_wiener_info, wiener_info, sizeof(*wiener_info));
+}
+
+static void read_sgrproj_filter(SgrprojInfo *sgrproj_info,
+ SgrprojInfo *ref_sgrproj_info, aom_reader *rb) {
+ sgrproj_info->ep = aom_read_literal(rb, SGRPROJ_PARAMS_BITS, ACCT_STR);
+ sgrproj_info->xqd[0] =
+ aom_read_primitive_refsubexpfin(
+ rb, SGRPROJ_PRJ_MAX0 - SGRPROJ_PRJ_MIN0 + 1, SGRPROJ_PRJ_SUBEXP_K,
+ ref_sgrproj_info->xqd[0] - SGRPROJ_PRJ_MIN0) +
+ SGRPROJ_PRJ_MIN0;
+ sgrproj_info->xqd[1] =
+ aom_read_primitive_refsubexpfin(
+ rb, SGRPROJ_PRJ_MAX1 - SGRPROJ_PRJ_MIN1 + 1, SGRPROJ_PRJ_SUBEXP_K,
+ ref_sgrproj_info->xqd[1] - SGRPROJ_PRJ_MIN1) +
+ SGRPROJ_PRJ_MIN1;
+ memcpy(ref_sgrproj_info, sgrproj_info, sizeof(*sgrproj_info));
+}
+
+static void decode_restoration(AV1_COMMON *cm, aom_reader *rb) {
+ int i, p;
+ SgrprojInfo ref_sgrproj_info;
+ WienerInfo ref_wiener_info;
+ set_default_wiener(&ref_wiener_info);
+ set_default_sgrproj(&ref_sgrproj_info);
+ const int ntiles = av1_get_rest_ntiles(cm->width, cm->height,
+ cm->rst_info[0].restoration_tilesize,
+ NULL, NULL, NULL, NULL);
+ const int ntiles_uv = av1_get_rest_ntiles(
+ ROUND_POWER_OF_TWO(cm->width, cm->subsampling_x),
+ ROUND_POWER_OF_TWO(cm->height, cm->subsampling_y),
+ cm->rst_info[1].restoration_tilesize, NULL, NULL, NULL, NULL);
+ RestorationInfo *rsi = &cm->rst_info[0];
+ if (rsi->frame_restoration_type != RESTORE_NONE) {
+ if (rsi->frame_restoration_type == RESTORE_SWITCHABLE) {
+ for (i = 0; i < ntiles; ++i) {
+ rsi->restoration_type[i] =
+ aom_read_tree(rb, av1_switchable_restore_tree,
+ cm->fc->switchable_restore_prob, ACCT_STR);
+ if (rsi->restoration_type[i] == RESTORE_WIENER) {
+ read_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, rb);
+ } else if (rsi->restoration_type[i] == RESTORE_SGRPROJ) {
+ read_sgrproj_filter(&rsi->sgrproj_info[i], &ref_sgrproj_info, rb);
+ }
+ }
+ } else if (rsi->frame_restoration_type == RESTORE_WIENER) {
+ for (i = 0; i < ntiles; ++i) {
+ if (aom_read(rb, RESTORE_NONE_WIENER_PROB, ACCT_STR)) {
+ rsi->restoration_type[i] = RESTORE_WIENER;
+ read_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, rb);
+ } else {
+ rsi->restoration_type[i] = RESTORE_NONE;
+ }
+ }
+ } else if (rsi->frame_restoration_type == RESTORE_SGRPROJ) {
+ for (i = 0; i < ntiles; ++i) {
+ if (aom_read(rb, RESTORE_NONE_SGRPROJ_PROB, ACCT_STR)) {
+ rsi->restoration_type[i] = RESTORE_SGRPROJ;
+ read_sgrproj_filter(&rsi->sgrproj_info[i], &ref_sgrproj_info, rb);
+ } else {
+ rsi->restoration_type[i] = RESTORE_NONE;
+ }
+ }
+ }
+ }
+ for (p = 1; p < MAX_MB_PLANE; ++p) {
+ set_default_wiener(&ref_wiener_info);
+ rsi = &cm->rst_info[p];
+ if (rsi->frame_restoration_type == RESTORE_WIENER) {
+ for (i = 0; i < ntiles_uv; ++i) {
+ if (ntiles_uv > 1)
+ rsi->restoration_type[i] =
+ aom_read(rb, RESTORE_NONE_WIENER_PROB, ACCT_STR) ? RESTORE_WIENER
+ : RESTORE_NONE;
+ else
+ rsi->restoration_type[i] = RESTORE_WIENER;
+ if (rsi->restoration_type[i] == RESTORE_WIENER) {
+ read_wiener_filter(&rsi->wiener_info[i], &ref_wiener_info, rb);
+ }
+ }
+ }
+ }
+}
+#endif // CONFIG_LOOP_RESTORATION
+
+static void setup_loopfilter(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ struct loopfilter *lf = &cm->lf;
+ lf->filter_level = aom_rb_read_literal(rb, 6);
+ lf->sharpness_level = aom_rb_read_literal(rb, 3);
+
+ // Read in loop filter deltas applied at the MB level based on mode or ref
+ // frame.
+ lf->mode_ref_delta_update = 0;
+
+ lf->mode_ref_delta_enabled = aom_rb_read_bit(rb);
+ if (lf->mode_ref_delta_enabled) {
+ lf->mode_ref_delta_update = aom_rb_read_bit(rb);
+ if (lf->mode_ref_delta_update) {
+ int i;
+
+ for (i = 0; i < TOTAL_REFS_PER_FRAME; i++)
+ if (aom_rb_read_bit(rb))
+ lf->ref_deltas[i] = aom_rb_read_inv_signed_literal(rb, 6);
+
+ for (i = 0; i < MAX_MODE_LF_DELTAS; i++)
+ if (aom_rb_read_bit(rb))
+ lf->mode_deltas[i] = aom_rb_read_inv_signed_literal(rb, 6);
+ }
+ }
+}
+
+#if CONFIG_CDEF
+static void setup_cdef(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ int i;
+ cm->cdef_dering_damping = aom_rb_read_literal(rb, 1) + 5;
+ cm->cdef_clpf_damping = aom_rb_read_literal(rb, 2) + 3;
+ cm->cdef_bits = aom_rb_read_literal(rb, 2);
+ cm->nb_cdef_strengths = 1 << cm->cdef_bits;
+ for (i = 0; i < cm->nb_cdef_strengths; i++) {
+ cm->cdef_strengths[i] = aom_rb_read_literal(rb, CDEF_STRENGTH_BITS);
+ cm->cdef_uv_strengths[i] = aom_rb_read_literal(rb, CDEF_STRENGTH_BITS);
+ }
+}
+#endif // CONFIG_CDEF
+
+static INLINE int read_delta_q(struct aom_read_bit_buffer *rb) {
+ return aom_rb_read_bit(rb) ? aom_rb_read_inv_signed_literal(rb, 6) : 0;
+}
+
+static void setup_quantization(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb) {
+ cm->base_qindex = aom_rb_read_literal(rb, QINDEX_BITS);
+ cm->y_dc_delta_q = read_delta_q(rb);
+ cm->uv_dc_delta_q = read_delta_q(rb);
+ cm->uv_ac_delta_q = read_delta_q(rb);
+ cm->dequant_bit_depth = cm->bit_depth;
+#if CONFIG_AOM_QM
+ cm->using_qmatrix = aom_rb_read_bit(rb);
+ if (cm->using_qmatrix) {
+ cm->min_qmlevel = aom_rb_read_literal(rb, QM_LEVEL_BITS);
+ cm->max_qmlevel = aom_rb_read_literal(rb, QM_LEVEL_BITS);
+ } else {
+ cm->min_qmlevel = 0;
+ cm->max_qmlevel = 0;
+ }
+#endif
+}
+
+static void setup_segmentation_dequant(AV1_COMMON *const cm) {
+ // Build y/uv dequant values based on segmentation.
+ int i = 0;
+#if CONFIG_AOM_QM
+ int lossless;
+ int j = 0;
+ int qmlevel;
+ int using_qm = cm->using_qmatrix;
+ int minqm = cm->min_qmlevel;
+ int maxqm = cm->max_qmlevel;
+#endif
+#if CONFIG_NEW_QUANT
+ int b;
+ int dq;
+#endif // CONFIG_NEW_QUANT
+ if (cm->seg.enabled) {
+ for (i = 0; i < MAX_SEGMENTS; ++i) {
+ const int qindex = av1_get_qindex(&cm->seg, i, cm->base_qindex);
+ cm->y_dequant[i][0] =
+ av1_dc_quant(qindex, cm->y_dc_delta_q, cm->bit_depth);
+ cm->y_dequant[i][1] = av1_ac_quant(qindex, 0, cm->bit_depth);
+ cm->uv_dequant[i][0] =
+ av1_dc_quant(qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ cm->uv_dequant[i][1] =
+ av1_ac_quant(qindex, cm->uv_ac_delta_q, cm->bit_depth);
+#if CONFIG_AOM_QM
+ lossless = qindex == 0 && cm->y_dc_delta_q == 0 &&
+ cm->uv_dc_delta_q == 0 && cm->uv_ac_delta_q == 0;
+ // NB: depends on base index so there is only 1 set per frame
+ // No quant weighting when lossless or signalled not using QM
+ qmlevel = (lossless || using_qm == 0)
+ ? NUM_QM_LEVELS - 1
+ : aom_get_qmlevel(cm->base_qindex, minqm, maxqm);
+ for (j = 0; j < TX_SIZES; ++j) {
+ cm->y_iqmatrix[i][1][j] = aom_iqmatrix(cm, qmlevel, 0, j, 1);
+ cm->y_iqmatrix[i][0][j] = aom_iqmatrix(cm, qmlevel, 0, j, 0);
+ cm->uv_iqmatrix[i][1][j] = aom_iqmatrix(cm, qmlevel, 1, j, 1);
+ cm->uv_iqmatrix[i][0][j] = aom_iqmatrix(cm, qmlevel, 1, j, 0);
+ }
+#endif // CONFIG_AOM_QM
+#if CONFIG_NEW_QUANT
+ for (dq = 0; dq < QUANT_PROFILES; dq++) {
+ for (b = 0; b < COEF_BANDS; ++b) {
+ av1_get_dequant_val_nuq(cm->y_dequant[i][b != 0], b,
+ cm->y_dequant_nuq[i][dq][b], NULL, dq);
+ av1_get_dequant_val_nuq(cm->uv_dequant[i][b != 0], b,
+ cm->uv_dequant_nuq[i][dq][b], NULL, dq);
+ }
+ }
+#endif // CONFIG_NEW_QUANT
+ }
+ } else {
+ const int qindex = cm->base_qindex;
+ // When segmentation is disabled, only the first value is used. The
+ // remaining are don't cares.
+ cm->y_dequant[0][0] = av1_dc_quant(qindex, cm->y_dc_delta_q, cm->bit_depth);
+ cm->y_dequant[0][1] = av1_ac_quant(qindex, 0, cm->bit_depth);
+ cm->uv_dequant[0][0] =
+ av1_dc_quant(qindex, cm->uv_dc_delta_q, cm->bit_depth);
+ cm->uv_dequant[0][1] =
+ av1_ac_quant(qindex, cm->uv_ac_delta_q, cm->bit_depth);
+#if CONFIG_AOM_QM
+ lossless = qindex == 0 && cm->y_dc_delta_q == 0 && cm->uv_dc_delta_q == 0 &&
+ cm->uv_ac_delta_q == 0;
+ // No quant weighting when lossless or signalled not using QM
+ qmlevel = (lossless || using_qm == 0)
+ ? NUM_QM_LEVELS - 1
+ : aom_get_qmlevel(cm->base_qindex, minqm, maxqm);
+ for (j = 0; j < TX_SIZES; ++j) {
+ cm->y_iqmatrix[i][1][j] = aom_iqmatrix(cm, qmlevel, 0, j, 1);
+ cm->y_iqmatrix[i][0][j] = aom_iqmatrix(cm, qmlevel, 0, j, 0);
+ cm->uv_iqmatrix[i][1][j] = aom_iqmatrix(cm, qmlevel, 1, j, 1);
+ cm->uv_iqmatrix[i][0][j] = aom_iqmatrix(cm, qmlevel, 1, j, 0);
+ }
+#endif
+#if CONFIG_NEW_QUANT
+ for (dq = 0; dq < QUANT_PROFILES; dq++) {
+ for (b = 0; b < COEF_BANDS; ++b) {
+ av1_get_dequant_val_nuq(cm->y_dequant[0][b != 0], b,
+ cm->y_dequant_nuq[0][dq][b], NULL, dq);
+ av1_get_dequant_val_nuq(cm->uv_dequant[0][b != 0], b,
+ cm->uv_dequant_nuq[0][dq][b], NULL, dq);
+ }
+ }
+#endif // CONFIG_NEW_QUANT
+ }
+}
+
+static InterpFilter read_frame_interp_filter(struct aom_read_bit_buffer *rb) {
+ return aom_rb_read_bit(rb) ? SWITCHABLE
+ : aom_rb_read_literal(rb, LOG_SWITCHABLE_FILTERS);
+}
+
+static void setup_render_size(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ cm->render_width = cm->width;
+ cm->render_height = cm->height;
+ if (aom_rb_read_bit(rb))
+ av1_read_frame_size(rb, &cm->render_width, &cm->render_height);
+}
+
+#if CONFIG_FRAME_SUPERRES
+// TODO(afergs): make "struct aom_read_bit_buffer *const rb"?
+static void setup_superres_size(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb, int *width,
+ int *height) {
+ // TODO(afergs): Test this behaviour
+ // Frame superres is probably in compatible with this render resolution
+ assert(cm->width == cm->render_width && cm->height == cm->render_height);
+
+ cm->superres_width = cm->width;
+ cm->superres_height = cm->height;
+ if (aom_rb_read_bit(rb)) {
+ cm->superres_scale_numerator =
+ (uint8_t)aom_rb_read_literal(rb, SUPERRES_SCALE_BITS);
+ cm->superres_scale_numerator += SUPERRES_SCALE_NUMERATOR_MIN;
+ // Don't edit cm->width or cm->height directly, or the buffers won't get
+ // resized correctly
+ // TODO(afergs): Should the render resolution not be modified? It's the same
+ // by default (ie. when it isn't sent)...
+ // resize_context_buffers() will change cm->width to equal cm->render_width,
+ // then they'll be the same again
+ *width = cm->render_width =
+ cm->width * cm->superres_scale_numerator / SUPERRES_SCALE_DENOMINATOR;
+ *height = cm->render_height =
+ cm->height * cm->superres_scale_numerator / SUPERRES_SCALE_DENOMINATOR;
+ } else {
+ // 1:1 scaling - ie. no scaling, scale not provided
+ cm->superres_scale_numerator = SUPERRES_SCALE_DENOMINATOR;
+ }
+}
+#endif // CONFIG_FRAME_SUPERRES
+
+static void resize_mv_buffer(AV1_COMMON *cm) {
+ aom_free(cm->cur_frame->mvs);
+ cm->cur_frame->mi_rows = cm->mi_rows;
+ cm->cur_frame->mi_cols = cm->mi_cols;
+ CHECK_MEM_ERROR(cm, cm->cur_frame->mvs,
+ (MV_REF *)aom_calloc(cm->mi_rows * cm->mi_cols,
+ sizeof(*cm->cur_frame->mvs)));
+}
+
+static void resize_context_buffers(AV1_COMMON *cm, int width, int height) {
+#if CONFIG_SIZE_LIMIT
+ if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Dimensions of %dx%d beyond allowed size of %dx%d.",
+ width, height, DECODE_WIDTH_LIMIT, DECODE_HEIGHT_LIMIT);
+#endif
+ if (cm->width != width || cm->height != height) {
+ const int new_mi_rows =
+ ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
+ const int new_mi_cols =
+ ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
+
+ // Allocations in av1_alloc_context_buffers() depend on individual
+ // dimensions as well as the overall size.
+ if (new_mi_cols > cm->mi_cols || new_mi_rows > cm->mi_rows) {
+ if (av1_alloc_context_buffers(cm, width, height))
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate context buffers");
+ } else {
+ av1_set_mb_mi(cm, width, height);
+ }
+ av1_init_context_buffers(cm);
+ cm->width = width;
+ cm->height = height;
+ }
+ if (cm->cur_frame->mvs == NULL || cm->mi_rows > cm->cur_frame->mi_rows ||
+ cm->mi_cols > cm->cur_frame->mi_cols) {
+ resize_mv_buffer(cm);
+ }
+}
+
+static void setup_frame_size(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ int width, height;
+ BufferPool *const pool = cm->buffer_pool;
+ av1_read_frame_size(rb, &width, &height);
+ setup_render_size(cm, rb);
+#if CONFIG_FRAME_SUPERRES
+ setup_superres_size(cm, rb, &width, &height);
+#endif // CONFIG_FRAME_SUPERRES
+ resize_context_buffers(cm, width, height);
+
+ lock_buffer_pool(pool);
+ if (aom_realloc_frame_buffer(
+ get_frame_new_buffer(cm), cm->width, cm->height, cm->subsampling_x,
+ cm->subsampling_y,
+#if CONFIG_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif
+ AOM_BORDER_IN_PIXELS, cm->byte_alignment,
+ &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
+ pool->cb_priv)) {
+ unlock_buffer_pool(pool);
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate frame buffer");
+ }
+ unlock_buffer_pool(pool);
+
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
+ pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_range = cm->color_range;
+ pool->frame_bufs[cm->new_fb_idx].buf.render_width = cm->render_width;
+ pool->frame_bufs[cm->new_fb_idx].buf.render_height = cm->render_height;
+}
+
+static INLINE int valid_ref_frame_img_fmt(aom_bit_depth_t ref_bit_depth,
+ int ref_xss, int ref_yss,
+ aom_bit_depth_t this_bit_depth,
+ int this_xss, int this_yss) {
+ return ref_bit_depth == this_bit_depth && ref_xss == this_xss &&
+ ref_yss == this_yss;
+}
+
+static void setup_frame_size_with_refs(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ int width, height;
+ int found = 0, i;
+ int has_valid_ref_frame = 0;
+ BufferPool *const pool = cm->buffer_pool;
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ if (aom_rb_read_bit(rb)) {
+ YV12_BUFFER_CONFIG *const buf = cm->frame_refs[i].buf;
+ width = buf->y_crop_width;
+ height = buf->y_crop_height;
+ cm->render_width = buf->render_width;
+ cm->render_height = buf->render_height;
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found) {
+ av1_read_frame_size(rb, &width, &height);
+ setup_render_size(cm, rb);
+ }
+
+ if (width <= 0 || height <= 0)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid frame size");
+
+ // Check to make sure at least one of frames that this frame references
+ // has valid dimensions.
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ has_valid_ref_frame |=
+ valid_ref_frame_size(ref_frame->buf->y_crop_width,
+ ref_frame->buf->y_crop_height, width, height);
+ }
+ if (!has_valid_ref_frame)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Referenced frame has invalid size");
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ if (!valid_ref_frame_img_fmt(ref_frame->buf->bit_depth,
+ ref_frame->buf->subsampling_x,
+ ref_frame->buf->subsampling_y, cm->bit_depth,
+ cm->subsampling_x, cm->subsampling_y))
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Referenced frame has incompatible color format");
+ }
+
+ resize_context_buffers(cm, width, height);
+
+ lock_buffer_pool(pool);
+ if (aom_realloc_frame_buffer(
+ get_frame_new_buffer(cm), cm->width, cm->height, cm->subsampling_x,
+ cm->subsampling_y,
+#if CONFIG_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif
+ AOM_BORDER_IN_PIXELS, cm->byte_alignment,
+ &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
+ pool->cb_priv)) {
+ unlock_buffer_pool(pool);
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate frame buffer");
+ }
+ unlock_buffer_pool(pool);
+
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
+ pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_range = cm->color_range;
+ pool->frame_bufs[cm->new_fb_idx].buf.render_width = cm->render_width;
+ pool->frame_bufs[cm->new_fb_idx].buf.render_height = cm->render_height;
+}
+
+static void read_tile_info(AV1Decoder *const pbi,
+ struct aom_read_bit_buffer *const rb) {
+ AV1_COMMON *const cm = &pbi->common;
+#if CONFIG_EXT_TILE
+ cm->tile_encoding_mode = aom_rb_read_literal(rb, 1);
+// Read the tile width/height
+#if CONFIG_EXT_PARTITION
+ if (cm->sb_size == BLOCK_128X128) {
+ cm->tile_width = aom_rb_read_literal(rb, 5) + 1;
+ cm->tile_height = aom_rb_read_literal(rb, 5) + 1;
+ } else
+#endif // CONFIG_EXT_PARTITION
+ {
+ cm->tile_width = aom_rb_read_literal(rb, 6) + 1;
+ cm->tile_height = aom_rb_read_literal(rb, 6) + 1;
+ }
+
+#if CONFIG_LOOPFILTERING_ACROSS_TILES
+ cm->loop_filter_across_tiles_enabled = aom_rb_read_bit(rb);
+#endif // CONFIG_LOOPFILTERING_ACROSS_TILES
+
+ cm->tile_width <<= cm->mib_size_log2;
+ cm->tile_height <<= cm->mib_size_log2;
+
+ cm->tile_width = AOMMIN(cm->tile_width, cm->mi_cols);
+ cm->tile_height = AOMMIN(cm->tile_height, cm->mi_rows);
+
+ // Get the number of tiles
+ cm->tile_cols = 1;
+ while (cm->tile_cols * cm->tile_width < cm->mi_cols) ++cm->tile_cols;
+
+ cm->tile_rows = 1;
+ while (cm->tile_rows * cm->tile_height < cm->mi_rows) ++cm->tile_rows;
+
+ if (cm->tile_cols * cm->tile_rows > 1) {
+ // Read the number of bytes used to store tile size
+ pbi->tile_col_size_bytes = aom_rb_read_literal(rb, 2) + 1;
+ pbi->tile_size_bytes = aom_rb_read_literal(rb, 2) + 1;
+ }
+
+#if CONFIG_DEPENDENT_HORZTILES
+ if (cm->tile_rows <= 1)
+ cm->dependent_horz_tiles = aom_rb_read_bit(rb);
+ else
+ cm->dependent_horz_tiles = 0;
+#endif
+#else
+ int min_log2_tile_cols, max_log2_tile_cols, max_ones;
+ av1_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
+
+ // columns
+ max_ones = max_log2_tile_cols - min_log2_tile_cols;
+ cm->log2_tile_cols = min_log2_tile_cols;
+ while (max_ones-- && aom_rb_read_bit(rb)) cm->log2_tile_cols++;
+
+ if (cm->log2_tile_cols > 6)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid number of tile columns");
+
+ // rows
+ cm->log2_tile_rows = aom_rb_read_bit(rb);
+ if (cm->log2_tile_rows) cm->log2_tile_rows += aom_rb_read_bit(rb);
+#if CONFIG_DEPENDENT_HORZTILES
+ if (cm->log2_tile_rows != 0)
+ cm->dependent_horz_tiles = aom_rb_read_bit(rb);
+ else
+ cm->dependent_horz_tiles = 0;
+#endif
+#if CONFIG_LOOPFILTERING_ACROSS_TILES
+ cm->loop_filter_across_tiles_enabled = aom_rb_read_bit(rb);
+#endif // CONFIG_LOOPFILTERING_ACROSS_TILES
+
+ cm->tile_cols = 1 << cm->log2_tile_cols;
+ cm->tile_rows = 1 << cm->log2_tile_rows;
+
+ cm->tile_width = ALIGN_POWER_OF_TWO(cm->mi_cols, MAX_MIB_SIZE_LOG2);
+ cm->tile_width >>= cm->log2_tile_cols;
+ cm->tile_height = ALIGN_POWER_OF_TWO(cm->mi_rows, MAX_MIB_SIZE_LOG2);
+ cm->tile_height >>= cm->log2_tile_rows;
+
+ // round to integer multiples of superblock size
+ cm->tile_width = ALIGN_POWER_OF_TWO(cm->tile_width, MAX_MIB_SIZE_LOG2);
+ cm->tile_height = ALIGN_POWER_OF_TWO(cm->tile_height, MAX_MIB_SIZE_LOG2);
+
+// tile size magnitude
+#if !CONFIG_TILE_GROUPS
+ if (cm->tile_rows > 1 || cm->tile_cols > 1)
+#endif
+ pbi->tile_size_bytes = aom_rb_read_literal(rb, 2) + 1;
+#endif // CONFIG_EXT_TILE
+
+#if CONFIG_TILE_GROUPS
+ // Store an index to the location of the tile group information
+ pbi->tg_size_bit_offset = rb->bit_offset;
+ pbi->tg_size = 1 << (cm->log2_tile_rows + cm->log2_tile_cols);
+ if (cm->log2_tile_rows + cm->log2_tile_cols > 0) {
+ pbi->tg_start =
+ aom_rb_read_literal(rb, cm->log2_tile_rows + cm->log2_tile_cols);
+ pbi->tg_size =
+ 1 + aom_rb_read_literal(rb, cm->log2_tile_rows + cm->log2_tile_cols);
+ }
+#endif
+}
+
+static int mem_get_varsize(const uint8_t *src, int sz) {
+ switch (sz) {
+ case 1: return src[0];
+ case 2: return mem_get_le16(src);
+ case 3: return mem_get_le24(src);
+ case 4: return mem_get_le32(src);
+ default: assert("Invalid size" && 0); return -1;
+ }
+}
+
+#if CONFIG_EXT_TILE
+// Reads the next tile returning its size and adjusting '*data' accordingly
+// based on 'is_last'.
+static void get_tile_buffer(const uint8_t *const data_end,
+ struct aom_internal_error_info *error_info,
+ const uint8_t **data, aom_decrypt_cb decrypt_cb,
+ void *decrypt_state,
+ TileBufferDec (*const tile_buffers)[MAX_TILE_COLS],
+ int tile_size_bytes, int col, int row,
+ unsigned int tile_encoding_mode) {
+ size_t size;
+
+ size_t copy_size = 0;
+ const uint8_t *copy_data = NULL;
+
+ if (!read_is_valid(*data, tile_size_bytes, data_end))
+ aom_internal_error(error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile length");
+ if (decrypt_cb) {
+ uint8_t be_data[4];
+ decrypt_cb(decrypt_state, *data, be_data, tile_size_bytes);
+
+ // Only read number of bytes in cm->tile_size_bytes.
+ size = mem_get_varsize(be_data, tile_size_bytes);
+ } else {
+ size = mem_get_varsize(*data, tile_size_bytes);
+ }
+
+ // If cm->tile_encoding_mode = 1 (i.e. TILE_VR), then the top bit of the tile
+ // header indicates copy mode.
+ if (tile_encoding_mode && (size >> (tile_size_bytes * 8 - 1)) == 1) {
+ // The remaining bits in the top byte signal the row offset
+ int offset = (size >> (tile_size_bytes - 1) * 8) & 0x7f;
+
+ // Currently, only use tiles in same column as reference tiles.
+ copy_data = tile_buffers[row - offset][col].data;
+ copy_size = tile_buffers[row - offset][col].size;
+ size = 0;
+ }
+
+ *data += tile_size_bytes;
+
+ if (size > (size_t)(data_end - *data))
+ aom_internal_error(error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile size");
+
+ if (size > 0) {
+ tile_buffers[row][col].data = *data;
+ tile_buffers[row][col].size = size;
+ } else {
+ tile_buffers[row][col].data = copy_data;
+ tile_buffers[row][col].size = copy_size;
+ }
+
+ *data += size;
+
+ tile_buffers[row][col].raw_data_end = *data;
+}
+
+static void get_tile_buffers(
+ AV1Decoder *pbi, const uint8_t *data, const uint8_t *data_end,
+ TileBufferDec (*const tile_buffers)[MAX_TILE_COLS]) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ const int have_tiles = tile_cols * tile_rows > 1;
+
+ if (!have_tiles) {
+ const size_t tile_size = data_end - data;
+ tile_buffers[0][0].data = data;
+ tile_buffers[0][0].size = tile_size;
+ tile_buffers[0][0].raw_data_end = NULL;
+ } else {
+ // We locate only the tile buffers that are required, which are the ones
+ // specified by pbi->dec_tile_col and pbi->dec_tile_row. Also, we always
+ // need the last (bottom right) tile buffer, as we need to know where the
+ // end of the compressed frame buffer is for proper superframe decoding.
+
+ const uint8_t *tile_col_data_end[MAX_TILE_COLS];
+ const uint8_t *const data_start = data;
+
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int tile_rows_start = single_row ? dec_tile_row : 0;
+ const int tile_rows_end = single_row ? tile_rows_start + 1 : tile_rows;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ const int tile_cols_start = single_col ? dec_tile_col : 0;
+ const int tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+
+ const int tile_col_size_bytes = pbi->tile_col_size_bytes;
+ const int tile_size_bytes = pbi->tile_size_bytes;
+
+ size_t tile_col_size;
+ int r, c;
+
+ // Read tile column sizes for all columns (we need the last tile buffer)
+ for (c = 0; c < tile_cols; ++c) {
+ const int is_last = c == tile_cols - 1;
+ if (!is_last) {
+ tile_col_size = mem_get_varsize(data, tile_col_size_bytes);
+ data += tile_col_size_bytes;
+ tile_col_data_end[c] = data + tile_col_size;
+ } else {
+ tile_col_size = data_end - data;
+ tile_col_data_end[c] = data_end;
+ }
+ data += tile_col_size;
+ }
+
+ data = data_start;
+
+ // Read the required tile sizes.
+ for (c = tile_cols_start; c < tile_cols_end; ++c) {
+ const int is_last = c == tile_cols - 1;
+
+ if (c > 0) data = tile_col_data_end[c - 1];
+
+ if (!is_last) data += tile_col_size_bytes;
+
+ // Get the whole of the last column, otherwise stop at the required tile.
+ for (r = 0; r < (is_last ? tile_rows : tile_rows_end); ++r) {
+ tile_buffers[r][c].col = c;
+
+ get_tile_buffer(tile_col_data_end[c], &pbi->common.error, &data,
+ pbi->decrypt_cb, pbi->decrypt_state, tile_buffers,
+ tile_size_bytes, c, r, cm->tile_encoding_mode);
+ }
+ }
+
+ // If we have not read the last column, then read it to get the last tile.
+ if (tile_cols_end != tile_cols) {
+ c = tile_cols - 1;
+
+ data = tile_col_data_end[c - 1];
+
+ for (r = 0; r < tile_rows; ++r) {
+ tile_buffers[r][c].col = c;
+
+ get_tile_buffer(tile_col_data_end[c], &pbi->common.error, &data,
+ pbi->decrypt_cb, pbi->decrypt_state, tile_buffers,
+ tile_size_bytes, c, r, cm->tile_encoding_mode);
+ }
+ }
+ }
+}
+#else
+// Reads the next tile returning its size and adjusting '*data' accordingly
+// based on 'is_last'.
+static void get_tile_buffer(const uint8_t *const data_end,
+ const int tile_size_bytes, int is_last,
+ struct aom_internal_error_info *error_info,
+ const uint8_t **data, aom_decrypt_cb decrypt_cb,
+ void *decrypt_state, TileBufferDec *const buf) {
+ size_t size;
+
+ if (!is_last) {
+ if (!read_is_valid(*data, tile_size_bytes, data_end))
+ aom_internal_error(error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile length");
+
+ if (decrypt_cb) {
+ uint8_t be_data[4];
+ decrypt_cb(decrypt_state, *data, be_data, tile_size_bytes);
+ size = mem_get_varsize(be_data, tile_size_bytes);
+ } else {
+ size = mem_get_varsize(*data, tile_size_bytes);
+ }
+ *data += tile_size_bytes;
+
+ if (size > (size_t)(data_end - *data))
+ aom_internal_error(error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile size");
+ } else {
+ size = data_end - *data;
+ }
+
+ buf->data = *data;
+ buf->size = size;
+
+ *data += size;
+}
+
+static void get_tile_buffers(
+ AV1Decoder *pbi, const uint8_t *data, const uint8_t *data_end,
+ TileBufferDec (*const tile_buffers)[MAX_TILE_COLS]) {
+ AV1_COMMON *const cm = &pbi->common;
+#if CONFIG_TILE_GROUPS
+ int r, c;
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ int tc = 0;
+ int first_tile_in_tg = 0;
+ struct aom_read_bit_buffer rb_tg_hdr;
+ uint8_t clear_data[MAX_AV1_HEADER_SIZE];
+ const int num_tiles = tile_rows * tile_cols;
+ const int num_bits = OD_ILOG(num_tiles) - 1;
+ const size_t hdr_size = pbi->uncomp_hdr_size + pbi->first_partition_size;
+ const int tg_size_bit_offset = pbi->tg_size_bit_offset;
+#if CONFIG_DEPENDENT_HORZTILES
+ int tile_group_start_col = 0;
+ int tile_group_start_row = 0;
+#endif
+
+ for (r = 0; r < tile_rows; ++r) {
+ for (c = 0; c < tile_cols; ++c, ++tc) {
+ TileBufferDec *const buf = &tile_buffers[r][c];
+ const int is_last = (r == tile_rows - 1) && (c == tile_cols - 1);
+ const size_t hdr_offset = (tc && tc == first_tile_in_tg) ? hdr_size : 0;
+
+ buf->col = c;
+ if (hdr_offset) {
+ init_read_bit_buffer(pbi, &rb_tg_hdr, data, data_end, clear_data);
+ rb_tg_hdr.bit_offset = tg_size_bit_offset;
+ if (num_tiles) {
+ pbi->tg_start = aom_rb_read_literal(&rb_tg_hdr, num_bits);
+ pbi->tg_size = 1 + aom_rb_read_literal(&rb_tg_hdr, num_bits);
+#if CONFIG_DEPENDENT_HORZTILES
+ tile_group_start_row = r;
+ tile_group_start_col = c;
+#endif
+ }
+ }
+ first_tile_in_tg += tc == first_tile_in_tg ? pbi->tg_size : 0;
+ data += hdr_offset;
+ get_tile_buffer(data_end, pbi->tile_size_bytes, is_last,
+ &pbi->common.error, &data, pbi->decrypt_cb,
+ pbi->decrypt_state, buf);
+#if CONFIG_DEPENDENT_HORZTILES
+ cm->tile_group_start_row[r][c] = tile_group_start_row;
+ cm->tile_group_start_col[r][c] = tile_group_start_col;
+#endif
+ }
+ }
+#else
+ int r, c;
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+
+ for (r = 0; r < tile_rows; ++r) {
+ for (c = 0; c < tile_cols; ++c) {
+ const int is_last = (r == tile_rows - 1) && (c == tile_cols - 1);
+ TileBufferDec *const buf = &tile_buffers[r][c];
+ buf->col = c;
+ get_tile_buffer(data_end, pbi->tile_size_bytes, is_last, &cm->error,
+ &data, pbi->decrypt_cb, pbi->decrypt_state, buf);
+ }
+ }
+#endif
+}
+#endif // CONFIG_EXT_TILE
+
+#if CONFIG_PVQ
+static void daala_dec_init(AV1_COMMON *const cm, daala_dec_ctx *daala_dec,
+ aom_reader *r) {
+ daala_dec->r = r;
+
+ // TODO(yushin) : activity masking info needs be signaled by a bitstream
+ daala_dec->use_activity_masking = AV1_PVQ_ENABLE_ACTIVITY_MASKING;
+
+#if !CONFIG_DAALA_DIST
+ daala_dec->use_activity_masking = 0;
+#endif
+
+ if (daala_dec->use_activity_masking)
+ daala_dec->qm = OD_HVS_QM;
+ else
+ daala_dec->qm = OD_FLAT_QM;
+
+ od_init_qm(daala_dec->state.qm, daala_dec->state.qm_inv,
+ daala_dec->qm == OD_HVS_QM ? OD_QM8_Q4_HVS : OD_QM8_Q4_FLAT);
+
+ if (daala_dec->use_activity_masking) {
+ int pli;
+ int use_masking = daala_dec->use_activity_masking;
+ int segment_id = 0;
+ int qindex = av1_get_qindex(&cm->seg, segment_id, cm->base_qindex);
+
+ for (pli = 0; pli < MAX_MB_PLANE; pli++) {
+ int i;
+ int q;
+
+ q = qindex;
+ if (q <= OD_DEFAULT_QMS[use_masking][0][pli].interp_q << OD_COEFF_SHIFT) {
+ od_interp_qm(&daala_dec->state.pvq_qm_q4[pli][0], q,
+ &OD_DEFAULT_QMS[use_masking][0][pli], NULL);
+ } else {
+ i = 0;
+ while (OD_DEFAULT_QMS[use_masking][i + 1][pli].qm_q4 != NULL &&
+ q > OD_DEFAULT_QMS[use_masking][i + 1][pli].interp_q
+ << OD_COEFF_SHIFT) {
+ i++;
+ }
+ od_interp_qm(&daala_dec->state.pvq_qm_q4[pli][0], q,
+ &OD_DEFAULT_QMS[use_masking][i][pli],
+ &OD_DEFAULT_QMS[use_masking][i + 1][pli]);
+ }
+ }
+ }
+}
+#endif // #if CONFIG_PVQ
+
+static const uint8_t *decode_tiles(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end) {
+ AV1_COMMON *const cm = &pbi->common;
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ const int n_tiles = tile_cols * tile_rows;
+ TileBufferDec(*const tile_buffers)[MAX_TILE_COLS] = pbi->tile_buffers;
+#if CONFIG_EXT_TILE
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int tile_rows_start = single_row ? dec_tile_row : 0;
+ const int tile_rows_end = single_row ? dec_tile_row + 1 : tile_rows;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ const int tile_cols_start = single_col ? dec_tile_col : 0;
+ const int tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+ const int inv_col_order = pbi->inv_tile_order && !single_col;
+ const int inv_row_order = pbi->inv_tile_order && !single_row;
+#else
+ const int tile_rows_start = 0;
+ const int tile_rows_end = tile_rows;
+ const int tile_cols_start = 0;
+ const int tile_cols_end = tile_cols;
+ const int inv_col_order = pbi->inv_tile_order;
+ const int inv_row_order = pbi->inv_tile_order;
+#endif // CONFIG_EXT_TILE
+ int tile_row, tile_col;
+
+#if CONFIG_SUBFRAME_PROB_UPDATE
+ cm->do_subframe_update = n_tiles == 1;
+#endif // CONFIG_SUBFRAME_PROB_UPDATE
+
+ if (cm->lf.filter_level && !cm->skip_loop_filter &&
+ pbi->lf_worker.data1 == NULL) {
+ CHECK_MEM_ERROR(cm, pbi->lf_worker.data1,
+ aom_memalign(32, sizeof(LFWorkerData)));
+ pbi->lf_worker.hook = (AVxWorkerHook)av1_loop_filter_worker;
+ if (pbi->max_threads > 1 && !winterface->reset(&pbi->lf_worker)) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Loop filter thread creation failed");
+ }
+ }
+
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData *)pbi->lf_worker.data1;
+ // Be sure to sync as we might be resuming after a failed frame decode.
+ winterface->sync(&pbi->lf_worker);
+ av1_loop_filter_data_reset(lf_data, get_frame_new_buffer(cm), cm,
+ pbi->mb.plane);
+ }
+
+ assert(tile_rows <= MAX_TILE_ROWS);
+ assert(tile_cols <= MAX_TILE_COLS);
+
+ get_tile_buffers(pbi, data, data_end, tile_buffers);
+
+ if (pbi->tile_data == NULL || n_tiles != pbi->allocated_tiles) {
+ aom_free(pbi->tile_data);
+ CHECK_MEM_ERROR(cm, pbi->tile_data,
+ aom_memalign(32, n_tiles * (sizeof(*pbi->tile_data))));
+ pbi->allocated_tiles = n_tiles;
+ }
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ aom_accounting_reset(&pbi->accounting);
+ }
+#endif
+ // Load all tile information into tile_data.
+ for (tile_row = tile_rows_start; tile_row < tile_rows_end; ++tile_row) {
+ for (tile_col = tile_cols_start; tile_col < tile_cols_end; ++tile_col) {
+ const TileBufferDec *const buf = &tile_buffers[tile_row][tile_col];
+ TileData *const td = pbi->tile_data + tile_cols * tile_row + tile_col;
+
+ td->cm = cm;
+ td->xd = pbi->mb;
+ td->xd.corrupted = 0;
+ td->xd.counts =
+ cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD
+ ? &cm->counts
+ : NULL;
+ av1_zero(td->dqcoeff);
+#if CONFIG_PVQ
+ av1_zero(td->pvq_ref_coeff);
+#endif
+ av1_tile_init(&td->xd.tile, td->cm, tile_row, tile_col);
+ setup_bool_decoder(buf->data, data_end, buf->size, &cm->error,
+ &td->bit_reader,
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ 1 << cm->ans_window_size_log2,
+#endif // CONFIG_ANS && ANS_MAX_SYMBOLS
+ pbi->decrypt_cb, pbi->decrypt_state);
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ td->bit_reader.accounting = &pbi->accounting;
+ } else {
+ td->bit_reader.accounting = NULL;
+ }
+#endif
+ av1_init_macroblockd(cm, &td->xd,
+#if CONFIG_PVQ
+ td->pvq_ref_coeff,
+#endif
+#if CONFIG_CFL
+ &td->cfl,
+#endif
+ td->dqcoeff);
+
+#if CONFIG_EC_ADAPT
+ // Initialise the tile context from the frame context
+ td->tctx = *cm->fc;
+ td->xd.tile_ctx = &td->tctx;
+#endif
+
+#if CONFIG_PVQ
+ daala_dec_init(cm, &td->xd.daala_dec, &td->bit_reader);
+ td->xd.daala_dec.state.adapt = &td->tctx.pvq_context;
+#endif
+
+#if CONFIG_PALETTE
+ td->xd.plane[0].color_index_map = td->color_index_map[0];
+ td->xd.plane[1].color_index_map = td->color_index_map[1];
+#endif // CONFIG_PALETTE
+ }
+ }
+
+ for (tile_row = tile_rows_start; tile_row < tile_rows_end; ++tile_row) {
+ const int row = inv_row_order ? tile_rows - 1 - tile_row : tile_row;
+ int mi_row = 0;
+ TileInfo tile_info;
+
+ av1_tile_set_row(&tile_info, cm, row);
+
+ for (tile_col = tile_cols_start; tile_col < tile_cols_end; ++tile_col) {
+ const int col = inv_col_order ? tile_cols - 1 - tile_col : tile_col;
+ TileData *const td = pbi->tile_data + tile_cols * row + col;
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ td->bit_reader.accounting->last_tell_frac =
+ aom_reader_tell_frac(&td->bit_reader);
+ }
+#endif
+
+ av1_tile_set_col(&tile_info, cm, col);
+
+#if CONFIG_DEPENDENT_HORZTILES
+#if CONFIG_TILE_GROUPS
+ av1_tile_set_tg_boundary(&tile_info, cm, tile_row, tile_col);
+ if (!cm->dependent_horz_tiles || tile_row == 0 ||
+ tile_info.tg_horz_boundary) {
+#else
+ if (!cm->dependent_horz_tiles || tile_row == 0) {
+#endif
+ av1_zero_above_context(cm, tile_info.mi_col_start,
+ tile_info.mi_col_end);
+ }
+#else
+ av1_zero_above_context(cm, tile_info.mi_col_start, tile_info.mi_col_end);
+#endif
+
+ for (mi_row = tile_info.mi_row_start; mi_row < tile_info.mi_row_end;
+ mi_row += cm->mib_size) {
+ int mi_col;
+
+ av1_zero_left_context(&td->xd);
+
+ for (mi_col = tile_info.mi_col_start; mi_col < tile_info.mi_col_end;
+ mi_col += cm->mib_size) {
+ av1_update_boundary_info(cm, &tile_info, mi_row, mi_col);
+ decode_partition(pbi, &td->xd,
+#if CONFIG_SUPERTX
+ 0,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, &td->bit_reader, cm->sb_size,
+ b_width_log2_lookup[cm->sb_size]);
+#if CONFIG_NCOBMC && CONFIG_MOTION_VAR
+ detoken_and_recon_sb(pbi, &td->xd, mi_row, mi_col, &td->bit_reader,
+ cm->sb_size);
+#endif
+ }
+ aom_merge_corrupted_flag(&pbi->mb.corrupted, td->xd.corrupted);
+ if (pbi->mb.corrupted)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Failed to decode tile data");
+#if CONFIG_SUBFRAME_PROB_UPDATE
+ if (cm->do_subframe_update &&
+ cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
+ const int mi_rows_per_update =
+ MI_SIZE * AOMMAX(cm->mi_rows / MI_SIZE / COEF_PROBS_BUFS, 1);
+ if ((mi_row + MI_SIZE) % mi_rows_per_update == 0 &&
+ mi_row + MI_SIZE < cm->mi_rows &&
+ cm->coef_probs_update_idx < COEF_PROBS_BUFS - 1) {
+ av1_partial_adapt_probs(cm, mi_row, mi_col);
+ ++cm->coef_probs_update_idx;
+ }
+ }
+#endif // CONFIG_SUBFRAME_PROB_UPDATE
+ }
+ }
+
+ assert(mi_row > 0);
+
+// when Parallel deblocking is enabled, deblocking should not
+// be interleaved with decoding. Instead, deblocking should be done
+// after the entire frame is decoded.
+#if !CONFIG_VAR_TX && !CONFIG_PARALLEL_DEBLOCKING && !CONFIG_CB4X4
+ // Loopfilter one tile row.
+ // Note: If out-of-order tile decoding is used(for example, inv_row_order
+ // = 1), the loopfiltering has be done after all tile rows are decoded.
+ if (!inv_row_order && cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData *)pbi->lf_worker.data1;
+ const int lf_start = AOMMAX(0, tile_info.mi_row_start - cm->mib_size);
+ const int lf_end = tile_info.mi_row_end - cm->mib_size;
+
+ // Delay the loopfilter if the first tile row is only
+ // a single superblock high.
+ if (lf_end <= 0) continue;
+
+ // Decoding has completed. Finish up the loop filter in this thread.
+ if (tile_info.mi_row_end >= cm->mi_rows) continue;
+
+ winterface->sync(&pbi->lf_worker);
+ lf_data->start = lf_start;
+ lf_data->stop = lf_end;
+ if (pbi->max_threads > 1) {
+ winterface->launch(&pbi->lf_worker);
+ } else {
+ winterface->execute(&pbi->lf_worker);
+ }
+ }
+#endif // !CONFIG_VAR_TX && !CONFIG_PARALLEL_DEBLOCKING
+
+ // After loopfiltering, the last 7 row pixels in each superblock row may
+ // still be changed by the longest loopfilter of the next superblock row.
+ if (cm->frame_parallel_decode)
+ av1_frameworker_broadcast(pbi->cur_buf, mi_row << cm->mib_size_log2);
+ }
+
+#if CONFIG_VAR_TX || CONFIG_CB4X4
+ // Loopfilter the whole frame.
+ av1_loop_filter_frame(get_frame_new_buffer(cm), cm, &pbi->mb,
+ cm->lf.filter_level, 0, 0);
+#else
+#if CONFIG_PARALLEL_DEBLOCKING
+ // Loopfilter all rows in the frame in the frame.
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData *)pbi->lf_worker.data1;
+ winterface->sync(&pbi->lf_worker);
+ lf_data->start = 0;
+ lf_data->stop = cm->mi_rows;
+ winterface->execute(&pbi->lf_worker);
+ }
+#else
+ // Loopfilter remaining rows in the frame.
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData *)pbi->lf_worker.data1;
+ winterface->sync(&pbi->lf_worker);
+ lf_data->start = lf_data->stop;
+ lf_data->stop = cm->mi_rows;
+ winterface->execute(&pbi->lf_worker);
+ }
+#endif // CONFIG_PARALLEL_DEBLOCKING
+#endif // CONFIG_VAR_TX
+ if (cm->frame_parallel_decode)
+ av1_frameworker_broadcast(pbi->cur_buf, INT_MAX);
+
+#if CONFIG_EXT_TILE
+ if (n_tiles == 1) {
+#if CONFIG_ANS
+ return data_end;
+#else
+ // Find the end of the single tile buffer
+ return aom_reader_find_end(&pbi->tile_data->bit_reader);
+#endif // CONFIG_ANS
+ } else {
+ // Return the end of the last tile buffer
+ return tile_buffers[tile_rows - 1][tile_cols - 1].raw_data_end;
+ }
+#else
+#if CONFIG_ANS
+ return data_end;
+#else
+ {
+ // Get last tile data.
+ TileData *const td = pbi->tile_data + tile_cols * tile_rows - 1;
+ return aom_reader_find_end(&td->bit_reader);
+ }
+#endif // CONFIG_ANS
+#endif // CONFIG_EXT_TILE
+}
+
+static int tile_worker_hook(TileWorkerData *const tile_data,
+ const TileInfo *const tile) {
+ AV1Decoder *const pbi = tile_data->pbi;
+ const AV1_COMMON *const cm = &pbi->common;
+ int mi_row, mi_col;
+
+ if (setjmp(tile_data->error_info.jmp)) {
+ tile_data->error_info.setjmp = 0;
+ aom_merge_corrupted_flag(&tile_data->xd.corrupted, 1);
+ return 0;
+ }
+
+ tile_data->error_info.setjmp = 1;
+ tile_data->xd.error_info = &tile_data->error_info;
+#if CONFIG_DEPENDENT_HORZTILES
+#if CONFIG_TILE_GROUPS
+ if (!cm->dependent_horz_tiles || tile->tg_horz_boundary) {
+#else
+ if (!cm->dependent_horz_tiles) {
+#endif
+ av1_zero_above_context(&pbi->common, tile->mi_col_start, tile->mi_col_end);
+ }
+#else
+ av1_zero_above_context(&pbi->common, tile->mi_col_start, tile->mi_col_end);
+#endif
+
+ for (mi_row = tile->mi_row_start; mi_row < tile->mi_row_end;
+ mi_row += cm->mib_size) {
+ av1_zero_left_context(&tile_data->xd);
+
+ for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
+ mi_col += cm->mib_size) {
+ decode_partition(pbi, &tile_data->xd,
+#if CONFIG_SUPERTX
+ 0,
+#endif
+ mi_row, mi_col, &tile_data->bit_reader, cm->sb_size,
+ b_width_log2_lookup[cm->sb_size]);
+#if CONFIG_NCOBMC && CONFIG_MOTION_VAR
+ detoken_and_recon_sb(pbi, &tile_data->xd, mi_row, mi_col,
+ &tile_data->bit_reader, cm->sb_size);
+#endif
+ }
+ }
+ return !tile_data->xd.corrupted;
+}
+
+// sorts in descending order
+static int compare_tile_buffers(const void *a, const void *b) {
+ const TileBufferDec *const buf1 = (const TileBufferDec *)a;
+ const TileBufferDec *const buf2 = (const TileBufferDec *)b;
+ return (int)(buf2->size - buf1->size);
+}
+
+static const uint8_t *decode_tiles_mt(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end) {
+ AV1_COMMON *const cm = &pbi->common;
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ const int num_workers = AOMMIN(pbi->max_threads & ~1, tile_cols);
+ TileBufferDec(*const tile_buffers)[MAX_TILE_COLS] = pbi->tile_buffers;
+#if CONFIG_EXT_TILE
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int tile_rows_start = single_row ? dec_tile_row : 0;
+ const int tile_rows_end = single_row ? dec_tile_row + 1 : tile_rows;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ const int tile_cols_start = single_col ? dec_tile_col : 0;
+ const int tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+#else
+ const int tile_rows_start = 0;
+ const int tile_rows_end = tile_rows;
+ const int tile_cols_start = 0;
+ const int tile_cols_end = tile_cols;
+#endif // CONFIG_EXT_TILE
+ int tile_row, tile_col;
+ int i;
+
+#if !(CONFIG_ANS || CONFIG_EXT_TILE)
+ int final_worker = -1;
+#endif // !(CONFIG_ANS || CONFIG_EXT_TILE)
+
+ assert(tile_rows <= MAX_TILE_ROWS);
+ assert(tile_cols <= MAX_TILE_COLS);
+
+ assert(tile_cols * tile_rows > 1);
+
+ // TODO(jzern): See if we can remove the restriction of passing in max
+ // threads to the decoder.
+ if (pbi->num_tile_workers == 0) {
+ const int num_threads = pbi->max_threads & ~1;
+ CHECK_MEM_ERROR(cm, pbi->tile_workers,
+ aom_malloc(num_threads * sizeof(*pbi->tile_workers)));
+ // Ensure tile data offsets will be properly aligned. This may fail on
+ // platforms without DECLARE_ALIGNED().
+ assert((sizeof(*pbi->tile_worker_data) % 16) == 0);
+ CHECK_MEM_ERROR(
+ cm, pbi->tile_worker_data,
+ aom_memalign(32, num_threads * sizeof(*pbi->tile_worker_data)));
+ CHECK_MEM_ERROR(cm, pbi->tile_worker_info,
+ aom_malloc(num_threads * sizeof(*pbi->tile_worker_info)));
+ for (i = 0; i < num_threads; ++i) {
+ AVxWorker *const worker = &pbi->tile_workers[i];
+ ++pbi->num_tile_workers;
+
+ winterface->init(worker);
+ if (i < num_threads - 1 && !winterface->reset(worker)) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Tile decoder thread creation failed");
+ }
+ }
+ }
+
+ // Reset tile decoding hook
+ for (i = 0; i < num_workers; ++i) {
+ AVxWorker *const worker = &pbi->tile_workers[i];
+ winterface->sync(worker);
+ worker->hook = (AVxWorkerHook)tile_worker_hook;
+ worker->data1 = &pbi->tile_worker_data[i];
+ worker->data2 = &pbi->tile_worker_info[i];
+ }
+
+ // Initialize thread frame counts.
+ if (cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
+ for (i = 0; i < num_workers; ++i) {
+ TileWorkerData *const twd = (TileWorkerData *)pbi->tile_workers[i].data1;
+ av1_zero(twd->counts);
+ }
+ }
+
+ // Load tile data into tile_buffers
+ get_tile_buffers(pbi, data, data_end, tile_buffers);
+
+ for (tile_row = tile_rows_start; tile_row < tile_rows_end; ++tile_row) {
+ // Sort the buffers in this tile row based on size in descending order.
+ qsort(&tile_buffers[tile_row][tile_cols_start],
+ tile_cols_end - tile_cols_start, sizeof(tile_buffers[0][0]),
+ compare_tile_buffers);
+
+ // Rearrange the tile buffers in this tile row such that per-tile group
+ // the largest, and presumably the most difficult tile will be decoded in
+ // the main thread. This should help minimize the number of instances
+ // where the main thread is waiting for a worker to complete.
+ {
+ int group_start;
+ for (group_start = tile_cols_start; group_start < tile_cols_end;
+ group_start += num_workers) {
+ const int group_end = AOMMIN(group_start + num_workers, tile_cols);
+ const TileBufferDec largest = tile_buffers[tile_row][group_start];
+ memmove(&tile_buffers[tile_row][group_start],
+ &tile_buffers[tile_row][group_start + 1],
+ (group_end - group_start - 1) * sizeof(tile_buffers[0][0]));
+ tile_buffers[tile_row][group_end - 1] = largest;
+ }
+ }
+
+ for (tile_col = tile_cols_start; tile_col < tile_cols_end;) {
+ // Launch workers for individual columns
+ for (i = 0; i < num_workers && tile_col < tile_cols_end;
+ ++i, ++tile_col) {
+ TileBufferDec *const buf = &tile_buffers[tile_row][tile_col];
+ AVxWorker *const worker = &pbi->tile_workers[i];
+ TileWorkerData *const twd = (TileWorkerData *)worker->data1;
+ TileInfo *const tile_info = (TileInfo *)worker->data2;
+
+ twd->pbi = pbi;
+ twd->xd = pbi->mb;
+ twd->xd.corrupted = 0;
+ twd->xd.counts =
+ cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD
+ ? &twd->counts
+ : NULL;
+ av1_zero(twd->dqcoeff);
+ av1_tile_init(tile_info, cm, tile_row, buf->col);
+ av1_tile_init(&twd->xd.tile, cm, tile_row, buf->col);
+ setup_bool_decoder(buf->data, data_end, buf->size, &cm->error,
+ &twd->bit_reader,
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ 1 << cm->ans_window_size_log2,
+#endif // CONFIG_ANS && ANS_MAX_SYMBOLS
+ pbi->decrypt_cb, pbi->decrypt_state);
+ av1_init_macroblockd(cm, &twd->xd,
+#if CONFIG_PVQ
+ twd->pvq_ref_coeff,
+#endif
+#if CONFIG_CFL
+ &twd->cfl,
+#endif
+ twd->dqcoeff);
+#if CONFIG_PVQ
+ daala_dec_init(cm, &twd->xd.daala_dec, &twd->bit_reader);
+ twd->xd.daala_dec.state.adapt = &twd->tctx.pvq_context;
+#endif
+#if CONFIG_EC_ADAPT
+ // Initialise the tile context from the frame context
+ twd->tctx = *cm->fc;
+ twd->xd.tile_ctx = &twd->tctx;
+#endif
+#if CONFIG_PALETTE
+ twd->xd.plane[0].color_index_map = twd->color_index_map[0];
+ twd->xd.plane[1].color_index_map = twd->color_index_map[1];
+#endif // CONFIG_PALETTE
+
+ worker->had_error = 0;
+ if (i == num_workers - 1 || tile_col == tile_cols_end - 1) {
+ winterface->execute(worker);
+ } else {
+ winterface->launch(worker);
+ }
+
+#if !(CONFIG_ANS || CONFIG_EXT_TILE)
+ if (tile_row == tile_rows - 1 && buf->col == tile_cols - 1) {
+ final_worker = i;
+ }
+#endif // !(CONFIG_ANS || CONFIG_EXT_TILE)
+ }
+
+ // Sync all workers
+ for (; i > 0; --i) {
+ AVxWorker *const worker = &pbi->tile_workers[i - 1];
+ // TODO(jzern): The tile may have specific error data associated with
+ // its aom_internal_error_info which could be propagated to the main
+ // info in cm. Additionally once the threads have been synced and an
+ // error is detected, there's no point in continuing to decode tiles.
+ pbi->mb.corrupted |= !winterface->sync(worker);
+ }
+ }
+ }
+
+ // Accumulate thread frame counts.
+ if (cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
+ for (i = 0; i < num_workers; ++i) {
+ TileWorkerData *const twd = (TileWorkerData *)pbi->tile_workers[i].data1;
+ av1_accumulate_frame_counts(&cm->counts, &twd->counts);
+ }
+ }
+
+#if CONFIG_EXT_TILE
+ // Return the end of the last tile buffer
+ return tile_buffers[tile_rows - 1][tile_cols - 1].raw_data_end;
+#else
+#if CONFIG_ANS
+ return data_end;
+#else
+ assert(final_worker != -1);
+ {
+ TileWorkerData *const twd =
+ (TileWorkerData *)pbi->tile_workers[final_worker].data1;
+ return aom_reader_find_end(&twd->bit_reader);
+ }
+#endif // CONFIG_ANS
+#endif // CONFIG_EXT_TILE
+}
+
+static void error_handler(void *data) {
+ AV1_COMMON *const cm = (AV1_COMMON *)data;
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME, "Truncated packet");
+}
+
+static void read_bitdepth_colorspace_sampling(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ if (cm->profile >= PROFILE_2) {
+ cm->bit_depth = aom_rb_read_bit(rb) ? AOM_BITS_12 : AOM_BITS_10;
+ } else {
+ cm->bit_depth = AOM_BITS_8;
+ }
+
+#if CONFIG_HIGHBITDEPTH
+ if (cm->bit_depth > AOM_BITS_8) {
+ cm->use_highbitdepth = 1;
+ } else {
+#if CONFIG_LOWBITDEPTH
+ cm->use_highbitdepth = 0;
+#else
+ cm->use_highbitdepth = 1;
+#endif
+ }
+#endif
+
+ cm->color_space = aom_rb_read_literal(rb, 3);
+ if (cm->color_space != AOM_CS_SRGB) {
+ // [16,235] (including xvycc) vs [0,255] range
+ cm->color_range = aom_rb_read_bit(rb);
+ if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
+ cm->subsampling_x = aom_rb_read_bit(rb);
+ cm->subsampling_y = aom_rb_read_bit(rb);
+ if (cm->subsampling_x == 1 && cm->subsampling_y == 1)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "4:2:0 color not supported in profile 1 or 3");
+ if (aom_rb_read_bit(rb))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Reserved bit set");
+ } else {
+ cm->subsampling_y = cm->subsampling_x = 1;
+ }
+ } else {
+ if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
+ // Note if colorspace is SRGB then 4:4:4 chroma sampling is assumed.
+ // 4:2:2 or 4:4:0 chroma sampling is not allowed.
+ cm->subsampling_y = cm->subsampling_x = 0;
+ if (aom_rb_read_bit(rb))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Reserved bit set");
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "4:4:4 color not supported in profile 0 or 2");
+ }
+ }
+}
+
+#if CONFIG_REFERENCE_BUFFER
+void read_sequence_header(SequenceHeader *seq_params) {
+ /* Placeholder for actually reading from the bitstream */
+ seq_params->frame_id_numbers_present_flag = FRAME_ID_NUMBERS_PRESENT_FLAG;
+ seq_params->frame_id_length_minus7 = FRAME_ID_LENGTH_MINUS7;
+ seq_params->delta_frame_id_length_minus2 = DELTA_FRAME_ID_LENGTH_MINUS2;
+}
+#endif
+
+static size_t read_uncompressed_header(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
+ BufferPool *const pool = cm->buffer_pool;
+ RefCntBuffer *const frame_bufs = pool->frame_bufs;
+ int i, mask, ref_index = 0;
+ size_t sz;
+
+#if CONFIG_REFERENCE_BUFFER
+ /* TODO: Move outside frame loop or inside key-frame branch */
+ read_sequence_header(&pbi->seq_params);
+#endif
+
+ cm->last_frame_type = cm->frame_type;
+ cm->last_intra_only = cm->intra_only;
+
+#if CONFIG_EXT_REFS
+ // NOTE: By default all coded frames to be used as a reference
+ cm->is_reference_frame = 1;
+#endif // CONFIG_EXT_REFS
+
+ if (aom_rb_read_literal(rb, 2) != AOM_FRAME_MARKER)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame marker");
+
+ cm->profile = av1_read_profile(rb);
+
+ const BITSTREAM_PROFILE MAX_SUPPORTED_PROFILE =
+ CONFIG_HIGHBITDEPTH ? MAX_PROFILES : PROFILE_2;
+
+ if (cm->profile >= MAX_SUPPORTED_PROFILE)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Unsupported bitstream profile");
+
+ cm->show_existing_frame = aom_rb_read_bit(rb);
+
+ if (cm->show_existing_frame) {
+ // Show an existing frame directly.
+ const int existing_frame_idx = aom_rb_read_literal(rb, 3);
+ const int frame_to_show = cm->ref_frame_map[existing_frame_idx];
+#if CONFIG_REFERENCE_BUFFER
+ if (pbi->seq_params.frame_id_numbers_present_flag) {
+ int frame_id_length = pbi->seq_params.frame_id_length_minus7 + 7;
+ int display_frame_id = aom_rb_read_literal(rb, frame_id_length);
+ /* Compare display_frame_id with ref_frame_id and check valid for
+ * referencing */
+ if (display_frame_id != cm->ref_frame_id[existing_frame_idx] ||
+ cm->valid_for_referencing[existing_frame_idx] == 0)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Reference buffer frame ID mismatch");
+ }
+#endif
+ lock_buffer_pool(pool);
+ if (frame_to_show < 0 || frame_bufs[frame_to_show].ref_count < 1) {
+ unlock_buffer_pool(pool);
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Buffer %d does not contain a decoded frame",
+ frame_to_show);
+ }
+ ref_cnt_fb(frame_bufs, &cm->new_fb_idx, frame_to_show);
+ unlock_buffer_pool(pool);
+
+ cm->lf.filter_level = 0;
+ cm->show_frame = 1;
+ pbi->refresh_frame_flags = 0;
+
+ if (cm->frame_parallel_decode) {
+ for (i = 0; i < REF_FRAMES; ++i)
+ cm->next_ref_frame_map[i] = cm->ref_frame_map[i];
+ }
+
+ return 0;
+ }
+
+ cm->frame_type = (FRAME_TYPE)aom_rb_read_bit(rb);
+ cm->show_frame = aom_rb_read_bit(rb);
+ cm->error_resilient_mode = aom_rb_read_bit(rb);
+#if CONFIG_REFERENCE_BUFFER
+ if (pbi->seq_params.frame_id_numbers_present_flag) {
+ int frame_id_length = pbi->seq_params.frame_id_length_minus7 + 7;
+ int diff_len = pbi->seq_params.delta_frame_id_length_minus2 + 2;
+ int prev_frame_id = 0;
+ if (cm->frame_type != KEY_FRAME) {
+ prev_frame_id = cm->current_frame_id;
+ }
+ cm->current_frame_id = aom_rb_read_literal(rb, frame_id_length);
+
+ if (cm->frame_type != KEY_FRAME) {
+ int diff_frame_id;
+ if (cm->current_frame_id > prev_frame_id) {
+ diff_frame_id = cm->current_frame_id - prev_frame_id;
+ } else {
+ diff_frame_id =
+ (1 << frame_id_length) + cm->current_frame_id - prev_frame_id;
+ }
+ /* Check current_frame_id for conformance */
+ if (prev_frame_id == cm->current_frame_id ||
+ diff_frame_id >= (1 << (frame_id_length - 1))) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid value of current_frame_id");
+ }
+ }
+ /* Check if some frames need to be marked as not valid for referencing */
+ for (i = 0; i < REF_FRAMES; i++) {
+ if (cm->frame_type == KEY_FRAME) {
+ cm->valid_for_referencing[i] = 0;
+ } else if (cm->current_frame_id - (1 << diff_len) > 0) {
+ if (cm->ref_frame_id[i] > cm->current_frame_id ||
+ cm->ref_frame_id[i] < cm->current_frame_id - (1 << diff_len))
+ cm->valid_for_referencing[i] = 0;
+ } else {
+ if (cm->ref_frame_id[i] > cm->current_frame_id &&
+ cm->ref_frame_id[i] <
+ (1 << frame_id_length) + cm->current_frame_id - (1 << diff_len))
+ cm->valid_for_referencing[i] = 0;
+ }
+ }
+ }
+#endif
+ if (cm->frame_type == KEY_FRAME) {
+ if (!av1_read_sync_code(rb))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame sync code");
+
+ read_bitdepth_colorspace_sampling(cm, rb);
+ pbi->refresh_frame_flags = (1 << REF_FRAMES) - 1;
+
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ cm->frame_refs[i].idx = INVALID_IDX;
+ cm->frame_refs[i].buf = NULL;
+ }
+
+ setup_frame_size(cm, rb);
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ cm->ans_window_size_log2 = aom_rb_read_literal(rb, 4) + 8;
+#endif // CONFIG_ANS && ANS_MAX_SYMBOLS
+#if CONFIG_PALETTE
+ cm->allow_screen_content_tools = aom_rb_read_bit(rb);
+#endif // CONFIG_PALETTE
+ } else {
+ cm->intra_only = cm->show_frame ? 0 : aom_rb_read_bit(rb);
+#if CONFIG_PALETTE
+ if (cm->intra_only) cm->allow_screen_content_tools = aom_rb_read_bit(rb);
+#endif // CONFIG_PALETTE
+ if (cm->error_resilient_mode) {
+ cm->reset_frame_context = RESET_FRAME_CONTEXT_ALL;
+ } else {
+ if (cm->intra_only) {
+ cm->reset_frame_context = aom_rb_read_bit(rb)
+ ? RESET_FRAME_CONTEXT_ALL
+ : RESET_FRAME_CONTEXT_CURRENT;
+ } else {
+ cm->reset_frame_context = aom_rb_read_bit(rb)
+ ? RESET_FRAME_CONTEXT_CURRENT
+ : RESET_FRAME_CONTEXT_NONE;
+ if (cm->reset_frame_context == RESET_FRAME_CONTEXT_CURRENT)
+ cm->reset_frame_context = aom_rb_read_bit(rb)
+ ? RESET_FRAME_CONTEXT_ALL
+ : RESET_FRAME_CONTEXT_CURRENT;
+ }
+ }
+
+ if (cm->intra_only) {
+ if (!av1_read_sync_code(rb))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame sync code");
+
+ read_bitdepth_colorspace_sampling(cm, rb);
+
+ pbi->refresh_frame_flags = aom_rb_read_literal(rb, REF_FRAMES);
+ setup_frame_size(cm, rb);
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ cm->ans_window_size_log2 = aom_rb_read_literal(rb, 4) + 8;
+#endif
+ } else if (pbi->need_resync != 1) { /* Skip if need resync */
+ pbi->refresh_frame_flags = aom_rb_read_literal(rb, REF_FRAMES);
+
+#if CONFIG_EXT_REFS
+ if (!pbi->refresh_frame_flags) {
+ // NOTE: "pbi->refresh_frame_flags == 0" indicates that the coded frame
+ // will not be used as a reference
+ cm->is_reference_frame = 0;
+ }
+#endif // CONFIG_EXT_REFS
+
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ const int ref = aom_rb_read_literal(rb, REF_FRAMES_LOG2);
+ const int idx = cm->ref_frame_map[ref];
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ ref_frame->idx = idx;
+ ref_frame->buf = &frame_bufs[idx].buf;
+ cm->ref_frame_sign_bias[LAST_FRAME + i] = aom_rb_read_bit(rb);
+#if CONFIG_REFERENCE_BUFFER
+ if (pbi->seq_params.frame_id_numbers_present_flag) {
+ int frame_id_length = pbi->seq_params.frame_id_length_minus7 + 7;
+ int diff_len = pbi->seq_params.delta_frame_id_length_minus2 + 2;
+ int delta_frame_id_minus1 = aom_rb_read_literal(rb, diff_len);
+ int ref_frame_id =
+ ((cm->current_frame_id - (delta_frame_id_minus1 + 1) +
+ (1 << frame_id_length)) %
+ (1 << frame_id_length));
+ /* Compare values derived from delta_frame_id_minus1 and
+ * refresh_frame_flags. Also, check valid for referencing */
+ if (ref_frame_id != cm->ref_frame_id[ref] ||
+ cm->valid_for_referencing[ref] == 0)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Reference buffer frame ID mismatch");
+ }
+#endif
+ }
+
+#if CONFIG_FRAME_SIZE
+ if (cm->error_resilient_mode == 0) {
+ setup_frame_size_with_refs(cm, rb);
+ } else {
+ setup_frame_size(cm, rb);
+ }
+#else
+ setup_frame_size_with_refs(cm, rb);
+#endif
+
+ cm->allow_high_precision_mv = aom_rb_read_bit(rb);
+ cm->interp_filter = read_frame_interp_filter(rb);
+#if CONFIG_TEMPMV_SIGNALING
+ if (!cm->error_resilient_mode) {
+ cm->use_prev_frame_mvs = aom_rb_read_bit(rb);
+ }
+#endif
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_buf = &cm->frame_refs[i];
+#if CONFIG_HIGHBITDEPTH
+ av1_setup_scale_factors_for_frame(
+ &ref_buf->sf, ref_buf->buf->y_crop_width,
+ ref_buf->buf->y_crop_height, cm->width, cm->height,
+ cm->use_highbitdepth);
+#else
+ av1_setup_scale_factors_for_frame(
+ &ref_buf->sf, ref_buf->buf->y_crop_width,
+ ref_buf->buf->y_crop_height, cm->width, cm->height);
+#endif
+ }
+ }
+ }
+#if CONFIG_TEMPMV_SIGNALING
+ cm->cur_frame->intra_only = cm->frame_type == KEY_FRAME || cm->intra_only;
+#endif
+
+#if CONFIG_REFERENCE_BUFFER
+ if (pbi->seq_params.frame_id_numbers_present_flag) {
+ /* If bitmask is set, update reference frame id values and
+ mark frames as valid for reference */
+ int refresh_frame_flags =
+ cm->frame_type == KEY_FRAME ? 0xFF : pbi->refresh_frame_flags;
+ for (i = 0; i < REF_FRAMES; i++) {
+ if ((refresh_frame_flags >> i) & 1) {
+ cm->ref_frame_id[i] = cm->current_frame_id;
+ cm->valid_for_referencing[i] = 1;
+ }
+ }
+ }
+#endif
+
+#if CONFIG_HIGHBITDEPTH
+ get_frame_new_buffer(cm)->bit_depth = cm->bit_depth;
+#endif
+ get_frame_new_buffer(cm)->color_space = cm->color_space;
+ get_frame_new_buffer(cm)->color_range = cm->color_range;
+ get_frame_new_buffer(cm)->render_width = cm->render_width;
+ get_frame_new_buffer(cm)->render_height = cm->render_height;
+
+ if (pbi->need_resync) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Keyframe / intra-only frame required to reset decoder"
+ " state");
+ }
+
+ if (!cm->error_resilient_mode) {
+ cm->refresh_frame_context = aom_rb_read_bit(rb)
+ ? REFRESH_FRAME_CONTEXT_FORWARD
+ : REFRESH_FRAME_CONTEXT_BACKWARD;
+ } else {
+ cm->refresh_frame_context = REFRESH_FRAME_CONTEXT_FORWARD;
+ }
+
+ // This flag will be overridden by the call to av1_setup_past_independence
+ // below, forcing the use of context 0 for those frame types.
+ cm->frame_context_idx = aom_rb_read_literal(rb, FRAME_CONTEXTS_LOG2);
+
+ // Generate next_ref_frame_map.
+ lock_buffer_pool(pool);
+ for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
+ if (mask & 1) {
+ cm->next_ref_frame_map[ref_index] = cm->new_fb_idx;
+ ++frame_bufs[cm->new_fb_idx].ref_count;
+ } else {
+ cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
+ }
+ // Current thread holds the reference frame.
+ if (cm->ref_frame_map[ref_index] >= 0)
+ ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
+ ++ref_index;
+ }
+
+ for (; ref_index < REF_FRAMES; ++ref_index) {
+ cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
+
+ // Current thread holds the reference frame.
+ if (cm->ref_frame_map[ref_index] >= 0)
+ ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
+ }
+ unlock_buffer_pool(pool);
+ pbi->hold_ref_buf = 1;
+
+ if (frame_is_intra_only(cm) || cm->error_resilient_mode)
+ av1_setup_past_independence(cm);
+
+#if CONFIG_EXT_PARTITION
+ set_sb_size(cm, aom_rb_read_bit(rb) ? BLOCK_128X128 : BLOCK_64X64);
+#else
+ set_sb_size(cm, BLOCK_64X64);
+#endif // CONFIG_EXT_PARTITION
+
+ setup_loopfilter(cm, rb);
+#if CONFIG_CDEF
+ setup_cdef(cm, rb);
+#endif
+#if CONFIG_LOOP_RESTORATION
+ decode_restoration_mode(cm, rb);
+#endif // CONFIG_LOOP_RESTORATION
+ setup_quantization(cm, rb);
+#if CONFIG_HIGHBITDEPTH
+ xd->bd = (int)cm->bit_depth;
+#endif
+
+#if CONFIG_Q_ADAPT_PROBS
+ av1_default_coef_probs(cm);
+ if (cm->frame_type == KEY_FRAME || cm->error_resilient_mode ||
+ cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL) {
+ for (i = 0; i < FRAME_CONTEXTS; ++i) cm->frame_contexts[i] = *cm->fc;
+ } else if (cm->reset_frame_context == RESET_FRAME_CONTEXT_CURRENT) {
+ cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
+ }
+#endif // CONFIG_Q_ADAPT_PROBS
+
+ setup_segmentation(cm, rb);
+
+#if CONFIG_DELTA_Q
+ {
+ struct segmentation *const seg = &cm->seg;
+ int segment_quantizer_active = 0;
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ if (segfeature_active(seg, i, SEG_LVL_ALT_Q)) {
+ segment_quantizer_active = 1;
+ }
+ }
+
+ cm->delta_q_res = 1;
+#if CONFIG_EXT_DELTA_Q
+ cm->delta_lf_res = 1;
+#endif
+ if (segment_quantizer_active == 0 && cm->base_qindex > 0) {
+ cm->delta_q_present_flag = aom_rb_read_bit(rb);
+ } else {
+ cm->delta_q_present_flag = 0;
+ }
+ if (cm->delta_q_present_flag) {
+ xd->prev_qindex = cm->base_qindex;
+ cm->delta_q_res = 1 << aom_rb_read_literal(rb, 2);
+#if CONFIG_EXT_DELTA_Q
+ if (segment_quantizer_active) {
+ assert(seg->abs_delta == SEGMENT_DELTADATA);
+ }
+ cm->delta_lf_present_flag = aom_rb_read_bit(rb);
+ if (cm->delta_lf_present_flag) {
+ xd->prev_delta_lf_from_base = 0;
+ cm->delta_lf_res = 1 << aom_rb_read_literal(rb, 2);
+ } else {
+ cm->delta_lf_present_flag = 0;
+ }
+#endif // CONFIG_EXT_DELTA_Q
+ }
+ }
+#endif
+
+ for (i = 0; i < MAX_SEGMENTS; ++i) {
+ const int qindex = cm->seg.enabled
+ ? av1_get_qindex(&cm->seg, i, cm->base_qindex)
+ : cm->base_qindex;
+ xd->lossless[i] = qindex == 0 && cm->y_dc_delta_q == 0 &&
+ cm->uv_dc_delta_q == 0 && cm->uv_ac_delta_q == 0;
+ xd->qindex[i] = qindex;
+ }
+
+ setup_segmentation_dequant(cm);
+ cm->tx_mode = read_tx_mode(cm, xd, rb);
+ cm->reference_mode = read_frame_reference_mode(cm, rb);
+
+#if CONFIG_EXT_TX
+ cm->reduced_tx_set_used = aom_rb_read_bit(rb);
+#endif // CONFIG_EXT_TX
+
+ read_tile_info(pbi, rb);
+ sz = aom_rb_read_literal(rb, 16);
+
+ if (sz == 0)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid header size");
+ return sz;
+}
+
+#if CONFIG_EXT_TX
+#if !CONFIG_EC_ADAPT
+static void read_ext_tx_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j, k;
+ int s;
+ for (s = 1; s < EXT_TX_SETS_INTER; ++s) {
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
+ if (!use_inter_ext_tx_for_txsize[s][i]) continue;
+ for (j = 0; j < num_ext_tx_set[ext_tx_set_type_inter[s]] - 1; ++j)
+ av1_diff_update_prob(r, &fc->inter_ext_tx_prob[s][i][j], ACCT_STR);
+ }
+ }
+ }
+
+ for (s = 1; s < EXT_TX_SETS_INTRA; ++s) {
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (i = TX_4X4; i < EXT_TX_SIZES; ++i) {
+ if (!use_intra_ext_tx_for_txsize[s][i]) continue;
+ for (j = 0; j < INTRA_MODES; ++j)
+ for (k = 0; k < num_ext_tx_set[ext_tx_set_type_intra[s]] - 1; ++k)
+ av1_diff_update_prob(r, &fc->intra_ext_tx_prob[s][i][j][k],
+ ACCT_STR);
+ }
+ }
+ }
+}
+#endif // !CONFIG_EC_ADAPT
+#else
+
+#endif // CONFIG_EXT_TX
+#if CONFIG_SUPERTX
+static void read_supertx_probs(FRAME_CONTEXT *fc, aom_reader *r) {
+ int i, j;
+ if (aom_read(r, GROUP_DIFF_UPDATE_PROB, ACCT_STR)) {
+ for (i = 0; i < PARTITION_SUPERTX_CONTEXTS; ++i) {
+ for (j = TX_8X8; j < TX_SIZES; ++j) {
+ av1_diff_update_prob(r, &fc->supertx_prob[i][j], ACCT_STR);
+ }
+ }
+ }
+}
+#endif // CONFIG_SUPERTX
+
+#if CONFIG_GLOBAL_MOTION
+static void read_global_motion_params(WarpedMotionParams *params,
+ WarpedMotionParams *ref_params,
+ aom_prob *probs, aom_reader *r,
+ int allow_hp) {
+ TransformationType type =
+ aom_read_tree(r, av1_global_motion_types_tree, probs, ACCT_STR);
+ int trans_bits;
+ int trans_dec_factor;
+ int trans_prec_diff;
+ set_default_warp_params(params);
+ params->wmtype = type;
+ switch (type) {
+ case HOMOGRAPHY:
+ case HORTRAPEZOID:
+ case VERTRAPEZOID:
+ if (type != HORTRAPEZOID)
+ params->wmmat[6] =
+ aom_read_signed_primitive_refsubexpfin(
+ r, GM_ROW3HOMO_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[6] >> GM_ROW3HOMO_PREC_DIFF)) *
+ GM_ROW3HOMO_DECODE_FACTOR;
+ if (type != VERTRAPEZOID)
+ params->wmmat[7] =
+ aom_read_signed_primitive_refsubexpfin(
+ r, GM_ROW3HOMO_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[7] >> GM_ROW3HOMO_PREC_DIFF)) *
+ GM_ROW3HOMO_DECODE_FACTOR;
+ case AFFINE:
+ case ROTZOOM:
+ params->wmmat[2] = aom_read_signed_primitive_refsubexpfin(
+ r, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[2] >> GM_ALPHA_PREC_DIFF) -
+ (1 << GM_ALPHA_PREC_BITS)) *
+ GM_ALPHA_DECODE_FACTOR +
+ (1 << WARPEDMODEL_PREC_BITS);
+ if (type != VERTRAPEZOID)
+ params->wmmat[3] = aom_read_signed_primitive_refsubexpfin(
+ r, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[3] >> GM_ALPHA_PREC_DIFF)) *
+ GM_ALPHA_DECODE_FACTOR;
+ if (type >= AFFINE) {
+ if (type != HORTRAPEZOID)
+ params->wmmat[4] = aom_read_signed_primitive_refsubexpfin(
+ r, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[4] >> GM_ALPHA_PREC_DIFF)) *
+ GM_ALPHA_DECODE_FACTOR;
+ params->wmmat[5] = aom_read_signed_primitive_refsubexpfin(
+ r, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[5] >> GM_ALPHA_PREC_DIFF) -
+ (1 << GM_ALPHA_PREC_BITS)) *
+ GM_ALPHA_DECODE_FACTOR +
+ (1 << WARPEDMODEL_PREC_BITS);
+ } else {
+ params->wmmat[4] = -params->wmmat[3];
+ params->wmmat[5] = params->wmmat[2];
+ }
+ // fallthrough intended
+ case TRANSLATION:
+ trans_bits = (type == TRANSLATION) ? GM_ABS_TRANS_ONLY_BITS - !allow_hp
+ : GM_ABS_TRANS_BITS;
+ trans_dec_factor = (type == TRANSLATION)
+ ? GM_TRANS_ONLY_DECODE_FACTOR * (1 << !allow_hp)
+ : GM_TRANS_DECODE_FACTOR;
+ trans_prec_diff = (type == TRANSLATION)
+ ? GM_TRANS_ONLY_PREC_DIFF + !allow_hp
+ : GM_TRANS_PREC_DIFF;
+ params->wmmat[0] = aom_read_signed_primitive_refsubexpfin(
+ r, (1 << trans_bits) + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[0] >> trans_prec_diff)) *
+ trans_dec_factor;
+ params->wmmat[1] = aom_read_signed_primitive_refsubexpfin(
+ r, (1 << trans_bits) + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[1] >> trans_prec_diff)) *
+ trans_dec_factor;
+ case IDENTITY: break;
+ default: assert(0);
+ }
+ if (params->wmtype <= AFFINE)
+ if (!get_shear_params(params)) assert(0);
+}
+
+static void read_global_motion(AV1_COMMON *cm, aom_reader *r) {
+ int frame;
+ for (frame = LAST_FRAME; frame <= ALTREF_FRAME; ++frame) {
+ read_global_motion_params(
+ &cm->global_motion[frame], &cm->prev_frame->global_motion[frame],
+ cm->fc->global_motion_types_prob, r, cm->allow_high_precision_mv);
+ /*
+ printf("Dec Ref %d [%d/%d]: %d %d %d %d\n",
+ frame, cm->current_video_frame, cm->show_frame,
+ cm->global_motion[frame].wmmat[0],
+ cm->global_motion[frame].wmmat[1],
+ cm->global_motion[frame].wmmat[2],
+ cm->global_motion[frame].wmmat[3]);
+ */
+ }
+ memcpy(cm->cur_frame->global_motion, cm->global_motion,
+ TOTAL_REFS_PER_FRAME * sizeof(WarpedMotionParams));
+}
+#endif // CONFIG_GLOBAL_MOTION
+
+static int read_compressed_header(AV1Decoder *pbi, const uint8_t *data,
+ size_t partition_size) {
+ AV1_COMMON *const cm = &pbi->common;
+#if CONFIG_SUPERTX
+ MACROBLOCKD *const xd = &pbi->mb;
+#endif
+ FRAME_CONTEXT *const fc = cm->fc;
+ aom_reader r;
+ int k, i;
+#if !CONFIG_EC_ADAPT || \
+ (CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION || CONFIG_EXT_INTER)
+ int j;
+#endif
+
+#if CONFIG_ANS && ANS_MAX_SYMBOLS
+ r.window_size = 1 << cm->ans_window_size_log2;
+#endif
+ if (aom_reader_init(&r, data, partition_size, pbi->decrypt_cb,
+ pbi->decrypt_state))
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate bool decoder 0");
+
+#if CONFIG_LOOP_RESTORATION
+ if (cm->rst_info[0].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[1].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[2].frame_restoration_type != RESTORE_NONE) {
+ av1_alloc_restoration_buffers(cm);
+ decode_restoration(cm, &r);
+ }
+#endif
+
+#if !CONFIG_EC_ADAPT
+ if (cm->tx_mode == TX_MODE_SELECT) read_tx_size_probs(fc, &r);
+#endif
+
+#if CONFIG_LV_MAP
+ av1_read_txb_probs(fc, cm->tx_mode, &r);
+#else // CONFIG_LV_MAP
+#if !CONFIG_PVQ
+#if !(CONFIG_EC_ADAPT && CONFIG_NEW_TOKENSET)
+ read_coef_probs(fc, cm->tx_mode, &r);
+#endif // !(CONFIG_EC_ADAPT && CONFIG_NEW_TOKENSET)
+#endif // !CONFIG_PVQ
+#endif // CONFIG_LV_MAP
+
+#if CONFIG_VAR_TX
+ for (k = 0; k < TXFM_PARTITION_CONTEXTS; ++k)
+ av1_diff_update_prob(&r, &fc->txfm_partition_prob[k], ACCT_STR);
+#endif // CONFIG_VAR_TX
+ for (k = 0; k < SKIP_CONTEXTS; ++k)
+ av1_diff_update_prob(&r, &fc->skip_probs[k], ACCT_STR);
+
+#if CONFIG_DELTA_Q && !CONFIG_EC_ADAPT
+#if CONFIG_EXT_DELTA_Q
+ if (cm->delta_q_present_flag) {
+ for (k = 0; k < DELTA_Q_PROBS; ++k)
+ av1_diff_update_prob(&r, &fc->delta_q_prob[k], ACCT_STR);
+ }
+ if (cm->delta_lf_present_flag) {
+ for (k = 0; k < DELTA_LF_PROBS; ++k)
+ av1_diff_update_prob(&r, &fc->delta_lf_prob[k], ACCT_STR);
+ }
+#else
+ for (k = 0; k < DELTA_Q_PROBS; ++k)
+ av1_diff_update_prob(&r, &fc->delta_q_prob[k], ACCT_STR);
+#endif
+#endif
+
+#if !CONFIG_EC_ADAPT
+ if (cm->seg.enabled && cm->seg.update_map) {
+ if (cm->seg.temporal_update) {
+ for (k = 0; k < PREDICTION_PROBS; k++)
+ av1_diff_update_prob(&r, &cm->fc->seg.pred_probs[k], ACCT_STR);
+ }
+ for (k = 0; k < MAX_SEGMENTS - 1; k++)
+ av1_diff_update_prob(&r, &cm->fc->seg.tree_probs[k], ACCT_STR);
+ }
+
+ for (j = 0; j < INTRA_MODES; j++) {
+ for (i = 0; i < INTRA_MODES - 1; ++i)
+ av1_diff_update_prob(&r, &fc->uv_mode_prob[j][i], ACCT_STR);
+ }
+
+#if CONFIG_EXT_PARTITION_TYPES
+ for (j = 0; j < PARTITION_PLOFFSET; ++j)
+ for (i = 0; i < PARTITION_TYPES - 1; ++i)
+ av1_diff_update_prob(&r, &fc->partition_prob[j][i], ACCT_STR);
+ for (; j < PARTITION_CONTEXTS_PRIMARY; ++j)
+ for (i = 0; i < EXT_PARTITION_TYPES - 1; ++i)
+ av1_diff_update_prob(&r, &fc->partition_prob[j][i], ACCT_STR);
+#else
+ for (j = 0; j < PARTITION_CONTEXTS_PRIMARY; ++j)
+ for (i = 0; i < PARTITION_TYPES - 1; ++i)
+ av1_diff_update_prob(&r, &fc->partition_prob[j][i], ACCT_STR);
+#endif // CONFIG_EXT_PARTITION_TYPES
+
+#if CONFIG_UNPOISON_PARTITION_CTX
+ for (; j < PARTITION_CONTEXTS_PRIMARY + PARTITION_BLOCK_SIZES; ++j)
+ av1_diff_update_prob(&r, &fc->partition_prob[j][PARTITION_VERT], ACCT_STR);
+ for (; j < PARTITION_CONTEXTS_PRIMARY + 2 * PARTITION_BLOCK_SIZES; ++j)
+ av1_diff_update_prob(&r, &fc->partition_prob[j][PARTITION_HORZ], ACCT_STR);
+#endif // CONFIG_UNPOISON_PARTITION_CTX
+
+#if CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
+ for (i = 0; i < INTRA_FILTERS + 1; ++i)
+ for (j = 0; j < INTRA_FILTERS - 1; ++j)
+ av1_diff_update_prob(&r, &fc->intra_filter_probs[i][j], ACCT_STR);
+#endif // CONFIG_EXT_INTRA && CONFIG_INTRA_INTERP
+#endif // !CONFIG_EC_ADAPT
+
+ if (frame_is_intra_only(cm)) {
+ av1_copy(cm->kf_y_prob, av1_kf_y_mode_prob);
+#if CONFIG_EC_MULTISYMBOL
+ av1_copy(cm->fc->kf_y_cdf, av1_kf_y_mode_cdf);
+#endif
+#if !CONFIG_EC_ADAPT
+ for (k = 0; k < INTRA_MODES; k++)
+ for (j = 0; j < INTRA_MODES; j++)
+ for (i = 0; i < INTRA_MODES - 1; ++i)
+ av1_diff_update_prob(&r, &cm->kf_y_prob[k][j][i], ACCT_STR);
+#endif
+ } else {
+#if !CONFIG_REF_MV
+ nmv_context *const nmvc = &fc->nmvc;
+#endif
+ read_inter_mode_probs(fc, &r);
+
+#if CONFIG_EXT_INTER
+ read_inter_compound_mode_probs(fc, &r);
+ if (cm->reference_mode != COMPOUND_REFERENCE) {
+ for (i = 0; i < BLOCK_SIZE_GROUPS; i++) {
+ if (is_interintra_allowed_bsize_group(i)) {
+ av1_diff_update_prob(&r, &fc->interintra_prob[i], ACCT_STR);
+ }
+ }
+ for (i = 0; i < BLOCK_SIZE_GROUPS; i++) {
+ for (j = 0; j < INTERINTRA_MODES - 1; j++)
+ av1_diff_update_prob(&r, &fc->interintra_mode_prob[i][j], ACCT_STR);
+ }
+ for (i = 0; i < BLOCK_SIZES; i++) {
+ if (is_interintra_allowed_bsize(i) && is_interintra_wedge_used(i)) {
+ av1_diff_update_prob(&r, &fc->wedge_interintra_prob[i], ACCT_STR);
+ }
+ }
+ }
+#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
+ if (cm->reference_mode != SINGLE_REFERENCE) {
+ for (i = 0; i < BLOCK_SIZES; i++) {
+ for (j = 0; j < COMPOUND_TYPES - 1; j++) {
+ av1_diff_update_prob(&r, &fc->compound_type_prob[i][j], ACCT_STR);
+ }
+ }
+ }
+#endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
+#endif // CONFIG_EXT_INTER
+
+#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ for (i = BLOCK_8X8; i < BLOCK_SIZES; ++i) {
+ for (j = 0; j < MOTION_MODES - 1; ++j)
+ av1_diff_update_prob(&r, &fc->motion_mode_prob[i][j], ACCT_STR);
+ }
+#endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+
+#if !CONFIG_EC_ADAPT
+ if (cm->interp_filter == SWITCHABLE) read_switchable_interp_probs(fc, &r);
+#endif
+
+ for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
+ av1_diff_update_prob(&r, &fc->intra_inter_prob[i], ACCT_STR);
+
+ if (cm->reference_mode != SINGLE_REFERENCE)
+ setup_compound_reference_mode(cm);
+ read_frame_reference_mode_probs(cm, &r);
+
+#if !CONFIG_EC_ADAPT
+ for (j = 0; j < BLOCK_SIZE_GROUPS; j++) {
+ for (i = 0; i < INTRA_MODES - 1; ++i)
+ av1_diff_update_prob(&r, &fc->y_mode_prob[j][i], ACCT_STR);
+ }
+#endif
+
+#if CONFIG_REF_MV
+ for (i = 0; i < NMV_CONTEXTS; ++i)
+ read_mv_probs(&fc->nmvc[i], cm->allow_high_precision_mv, &r);
+#else
+ read_mv_probs(nmvc, cm->allow_high_precision_mv, &r);
+#endif
+#if !CONFIG_EC_ADAPT
+ read_ext_tx_probs(fc, &r);
+#endif // EC_ADAPT
+#if CONFIG_SUPERTX
+ if (!xd->lossless[0]) read_supertx_probs(fc, &r);
+#endif
+#if CONFIG_GLOBAL_MOTION
+ read_global_motion(cm, &r);
+#endif // EC_ADAPT, DAALA_EC
+ }
+#if CONFIG_EC_MULTISYMBOL && !CONFIG_EC_ADAPT
+#if CONFIG_NEW_TOKENSET
+ av1_coef_head_cdfs(fc);
+#endif
+ /* Make tail distribution from head */
+ av1_coef_pareto_cdfs(fc);
+#if CONFIG_REF_MV
+ for (i = 0; i < NMV_CONTEXTS; ++i) av1_set_mv_cdfs(&fc->nmvc[i]);
+#else
+ av1_set_mv_cdfs(&fc->nmvc);
+#endif
+ av1_set_mode_cdfs(cm);
+#endif // CONFIG_EC_MULTISYMBOL && !CONFIG_EC_ADAPT
+
+ return aom_reader_has_error(&r);
+}
+
+#ifdef NDEBUG
+#define debug_check_frame_counts(cm) (void)0
+#else // !NDEBUG
+// Counts should only be incremented when frame_parallel_decoding_mode and
+// error_resilient_mode are disabled.
+static void debug_check_frame_counts(const AV1_COMMON *const cm) {
+ FRAME_COUNTS zero_counts;
+ av1_zero(zero_counts);
+ assert(cm->refresh_frame_context != REFRESH_FRAME_CONTEXT_BACKWARD ||
+ cm->error_resilient_mode);
+ assert(!memcmp(cm->counts.y_mode, zero_counts.y_mode,
+ sizeof(cm->counts.y_mode)));
+ assert(!memcmp(cm->counts.uv_mode, zero_counts.uv_mode,
+ sizeof(cm->counts.uv_mode)));
+ assert(!memcmp(cm->counts.partition, zero_counts.partition,
+ sizeof(cm->counts.partition)));
+ assert(!memcmp(cm->counts.coef, zero_counts.coef, sizeof(cm->counts.coef)));
+ assert(!memcmp(cm->counts.eob_branch, zero_counts.eob_branch,
+ sizeof(cm->counts.eob_branch)));
+#if CONFIG_EC_MULTISYMBOL
+ assert(!memcmp(cm->counts.blockz_count, zero_counts.blockz_count,
+ sizeof(cm->counts.blockz_count)));
+#endif
+ assert(!memcmp(cm->counts.switchable_interp, zero_counts.switchable_interp,
+ sizeof(cm->counts.switchable_interp)));
+ assert(!memcmp(cm->counts.inter_mode, zero_counts.inter_mode,
+ sizeof(cm->counts.inter_mode)));
+#if CONFIG_EXT_INTER
+ assert(!memcmp(cm->counts.inter_compound_mode,
+ zero_counts.inter_compound_mode,
+ sizeof(cm->counts.inter_compound_mode)));
+ assert(!memcmp(cm->counts.interintra, zero_counts.interintra,
+ sizeof(cm->counts.interintra)));
+ assert(!memcmp(cm->counts.wedge_interintra, zero_counts.wedge_interintra,
+ sizeof(cm->counts.wedge_interintra)));
+ assert(!memcmp(cm->counts.compound_interinter,
+ zero_counts.compound_interinter,
+ sizeof(cm->counts.compound_interinter)));
+#endif // CONFIG_EXT_INTER
+#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ assert(!memcmp(cm->counts.motion_mode, zero_counts.motion_mode,
+ sizeof(cm->counts.motion_mode)));
+#endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ assert(!memcmp(cm->counts.intra_inter, zero_counts.intra_inter,
+ sizeof(cm->counts.intra_inter)));
+ assert(!memcmp(cm->counts.comp_inter, zero_counts.comp_inter,
+ sizeof(cm->counts.comp_inter)));
+ assert(!memcmp(cm->counts.single_ref, zero_counts.single_ref,
+ sizeof(cm->counts.single_ref)));
+ assert(!memcmp(cm->counts.comp_ref, zero_counts.comp_ref,
+ sizeof(cm->counts.comp_ref)));
+#if CONFIG_EXT_REFS
+ assert(!memcmp(cm->counts.comp_bwdref, zero_counts.comp_bwdref,
+ sizeof(cm->counts.comp_bwdref)));
+#endif // CONFIG_EXT_REFS
+ assert(!memcmp(&cm->counts.tx_size, &zero_counts.tx_size,
+ sizeof(cm->counts.tx_size)));
+ assert(!memcmp(cm->counts.skip, zero_counts.skip, sizeof(cm->counts.skip)));
+#if CONFIG_REF_MV
+ assert(
+ !memcmp(&cm->counts.mv[0], &zero_counts.mv[0], sizeof(cm->counts.mv[0])));
+ assert(
+ !memcmp(&cm->counts.mv[1], &zero_counts.mv[1], sizeof(cm->counts.mv[0])));
+#else
+ assert(!memcmp(&cm->counts.mv, &zero_counts.mv, sizeof(cm->counts.mv)));
+#endif
+ assert(!memcmp(cm->counts.inter_ext_tx, zero_counts.inter_ext_tx,
+ sizeof(cm->counts.inter_ext_tx)));
+ assert(!memcmp(cm->counts.intra_ext_tx, zero_counts.intra_ext_tx,
+ sizeof(cm->counts.intra_ext_tx)));
+}
+#endif // NDEBUG
+
+static struct aom_read_bit_buffer *init_read_bit_buffer(
+ AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
+ const uint8_t *data_end, uint8_t clear_data[MAX_AV1_HEADER_SIZE]) {
+ rb->bit_offset = 0;
+ rb->error_handler = error_handler;
+ rb->error_handler_data = &pbi->common;
+ if (pbi->decrypt_cb) {
+ const int n = (int)AOMMIN(MAX_AV1_HEADER_SIZE, data_end - data);
+ pbi->decrypt_cb(pbi->decrypt_state, data, clear_data, n);
+ rb->bit_buffer = clear_data;
+ rb->bit_buffer_end = clear_data + n;
+ } else {
+ rb->bit_buffer = data;
+ rb->bit_buffer_end = data_end;
+ }
+ return rb;
+}
+
+//------------------------------------------------------------------------------
+
+int av1_read_sync_code(struct aom_read_bit_buffer *const rb) {
+ return aom_rb_read_literal(rb, 8) == AV1_SYNC_CODE_0 &&
+ aom_rb_read_literal(rb, 8) == AV1_SYNC_CODE_1 &&
+ aom_rb_read_literal(rb, 8) == AV1_SYNC_CODE_2;
+}
+
+void av1_read_frame_size(struct aom_read_bit_buffer *rb, int *width,
+ int *height) {
+ *width = aom_rb_read_literal(rb, 16) + 1;
+ *height = aom_rb_read_literal(rb, 16) + 1;
+}
+
+BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb) {
+ int profile = aom_rb_read_bit(rb);
+ profile |= aom_rb_read_bit(rb) << 1;
+ if (profile > 2) profile += aom_rb_read_bit(rb);
+ return (BITSTREAM_PROFILE)profile;
+}
+
+#if CONFIG_EC_ADAPT
+static void make_update_tile_list_dec(AV1Decoder *pbi, int tile_rows,
+ int tile_cols, FRAME_CONTEXT *ec_ctxs[]) {
+ int i;
+ for (i = 0; i < tile_rows * tile_cols; ++i)
+ ec_ctxs[i] = &pbi->tile_data[i].tctx;
+}
+#endif
+
+void av1_decode_frame(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end, const uint8_t **p_data_end) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
+ struct aom_read_bit_buffer rb;
+ int context_updated = 0;
+ uint8_t clear_data[MAX_AV1_HEADER_SIZE];
+ size_t first_partition_size;
+ YV12_BUFFER_CONFIG *new_fb;
+
+#if CONFIG_ADAPT_SCAN
+ av1_deliver_eob_threshold(cm, xd);
+#endif
+#if CONFIG_BITSTREAM_DEBUG
+ bitstream_queue_set_frame_read(cm->current_video_frame * 2 + cm->show_frame);
+#endif
+
+ first_partition_size = read_uncompressed_header(
+ pbi, init_read_bit_buffer(pbi, &rb, data, data_end, clear_data));
+
+#if CONFIG_EXT_TILE
+ // If cm->tile_encoding_mode == TILE_NORMAL, the independent decoding of a
+ // single tile or a section of a frame is not allowed.
+ if (!cm->tile_encoding_mode &&
+ (pbi->dec_tile_row >= 0 || pbi->dec_tile_col >= 0)) {
+ pbi->dec_tile_row = -1;
+ pbi->dec_tile_col = -1;
+ }
+#endif // CONFIG_EXT_TILE
+
+#if CONFIG_TILE_GROUPS
+ pbi->first_partition_size = first_partition_size;
+ pbi->uncomp_hdr_size = aom_rb_bytes_read(&rb);
+#endif
+ new_fb = get_frame_new_buffer(cm);
+ xd->cur_buf = new_fb;
+#if CONFIG_GLOBAL_MOTION
+ int i;
+ for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) {
+ set_default_warp_params(&cm->global_motion[i]);
+ set_default_warp_params(&cm->cur_frame->global_motion[i]);
+ }
+ xd->global_motion = cm->global_motion;
+#endif // CONFIG_GLOBAL_MOTION
+
+ if (!first_partition_size) {
+ // showing a frame directly
+ *p_data_end = data + aom_rb_bytes_read(&rb);
+ return;
+ }
+
+ data += aom_rb_bytes_read(&rb);
+ if (!read_is_valid(data, first_partition_size, data_end))
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt header length");
+
+#if CONFIG_REF_MV
+ cm->setup_mi(cm);
+#endif
+
+#if CONFIG_TEMPMV_SIGNALING
+ if (cm->use_prev_frame_mvs) {
+ RefBuffer *last_fb_ref_buf = &cm->frame_refs[LAST_FRAME - LAST_FRAME];
+ cm->prev_frame = &cm->buffer_pool->frame_bufs[last_fb_ref_buf->idx];
+ assert(!cm->error_resilient_mode &&
+ cm->width == last_fb_ref_buf->buf->y_width &&
+ cm->height == last_fb_ref_buf->buf->y_height &&
+ !cm->prev_frame->intra_only);
+ }
+#else
+ cm->use_prev_frame_mvs =
+ !cm->error_resilient_mode && cm->width == cm->last_width &&
+ cm->height == cm->last_height && !cm->last_intra_only &&
+ cm->last_show_frame && (cm->last_frame_type != KEY_FRAME);
+#endif
+#if CONFIG_EXT_REFS
+ // NOTE(zoeliu): As cm->prev_frame can take neither a frame of
+ // show_exisiting_frame=1, nor can it take a frame not used as
+ // a reference, it is probable that by the time it is being
+ // referred to, the frame buffer it originally points to may
+ // already get expired and have been reassigned to the current
+ // newly coded frame. Hence, we need to check whether this is
+ // the case, and if yes, we have 2 choices:
+ // (1) Simply disable the use of previous frame mvs; or
+ // (2) Have cm->prev_frame point to one reference frame buffer,
+ // e.g. LAST_FRAME.
+ if (cm->use_prev_frame_mvs && !dec_is_ref_frame_buf(pbi, cm->prev_frame)) {
+ // Reassign the LAST_FRAME buffer to cm->prev_frame.
+ RefBuffer *last_fb_ref_buf = &cm->frame_refs[LAST_FRAME - LAST_FRAME];
+ cm->prev_frame = &cm->buffer_pool->frame_bufs[last_fb_ref_buf->idx];
+ }
+#endif // CONFIG_EXT_REFS
+
+ av1_setup_block_planes(xd, cm->subsampling_x, cm->subsampling_y);
+
+ *cm->fc = cm->frame_contexts[cm->frame_context_idx];
+ if (!cm->fc->initialized)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Uninitialized entropy context.");
+
+ av1_zero(cm->counts);
+
+ xd->corrupted = 0;
+ new_fb->corrupted = read_compressed_header(pbi, data, first_partition_size);
+ if (new_fb->corrupted)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data header is corrupted.");
+
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ av1_loop_filter_frame_init(cm, cm->lf.filter_level);
+ }
+
+ // If encoded in frame parallel mode, frame context is ready after decoding
+ // the frame header.
+ if (cm->frame_parallel_decode &&
+ cm->refresh_frame_context != REFRESH_FRAME_CONTEXT_BACKWARD) {
+ AVxWorker *const worker = pbi->frame_worker_owner;
+ FrameWorkerData *const frame_worker_data = worker->data1;
+ if (cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_FORWARD) {
+ context_updated = 1;
+ cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
+ }
+ av1_frameworker_lock_stats(worker);
+ pbi->cur_buf->row = -1;
+ pbi->cur_buf->col = -1;
+ frame_worker_data->frame_context_ready = 1;
+ // Signal the main thread that context is ready.
+ av1_frameworker_signal_stats(worker);
+ av1_frameworker_unlock_stats(worker);
+ }
+
+#if CONFIG_SUBFRAME_PROB_UPDATE
+ av1_copy(cm->starting_coef_probs, cm->fc->coef_probs);
+ cm->coef_probs_update_idx = 0;
+#endif // CONFIG_SUBFRAME_PROB_UPDATE
+
+ if (pbi->max_threads > 1 && !CONFIG_CB4X4 &&
+#if CONFIG_EXT_TILE
+ pbi->dec_tile_col < 0 && // Decoding all columns
+#endif // CONFIG_EXT_TILE
+ cm->tile_cols > 1) {
+ // Multi-threaded tile decoder
+ *p_data_end = decode_tiles_mt(pbi, data + first_partition_size, data_end);
+ if (!xd->corrupted) {
+ if (!cm->skip_loop_filter) {
+ // If multiple threads are used to decode tiles, then we use those
+ // threads to do parallel loopfiltering.
+ av1_loop_filter_frame_mt(new_fb, cm, pbi->mb.plane, cm->lf.filter_level,
+ 0, 0, pbi->tile_workers, pbi->num_tile_workers,
+ &pbi->lf_row_sync);
+ }
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data is corrupted.");
+ }
+ } else {
+ *p_data_end = decode_tiles(pbi, data + first_partition_size, data_end);
+ }
+
+#if CONFIG_CDEF
+ if (!cm->skip_loop_filter) {
+ av1_cdef_frame(&pbi->cur_buf->buf, cm, &pbi->mb);
+ }
+#endif // CONFIG_CDEF
+
+#if CONFIG_LOOP_RESTORATION
+ if (cm->rst_info[0].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[1].frame_restoration_type != RESTORE_NONE ||
+ cm->rst_info[2].frame_restoration_type != RESTORE_NONE) {
+ av1_loop_restoration_frame(new_fb, cm, cm->rst_info, 7, 0, NULL);
+ }
+#endif // CONFIG_LOOP_RESTORATION
+
+ if (!xd->corrupted) {
+ if (cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT **tile_ctxs = aom_malloc(cm->tile_rows * cm->tile_cols *
+ sizeof(&pbi->tile_data[0].tctx));
+ aom_cdf_prob **cdf_ptrs =
+ aom_malloc(cm->tile_rows * cm->tile_cols *
+ sizeof(&pbi->tile_data[0].tctx.partition_cdf[0][0]));
+ make_update_tile_list_dec(pbi, cm->tile_rows, cm->tile_cols, tile_ctxs);
+#endif
+
+#if CONFIG_SUBFRAME_PROB_UPDATE
+ cm->partial_prob_update = 0;
+#endif // CONFIG_SUBFRAME_PROB_UPDATE
+ av1_adapt_coef_probs(cm);
+ av1_adapt_intra_frame_probs(cm);
+#if CONFIG_EC_ADAPT
+ av1_average_tile_coef_cdfs(pbi->common.fc, tile_ctxs, cdf_ptrs,
+ cm->tile_rows * cm->tile_cols);
+ av1_average_tile_intra_cdfs(pbi->common.fc, tile_ctxs, cdf_ptrs,
+ cm->tile_rows * cm->tile_cols);
+#if CONFIG_PVQ
+ av1_average_tile_pvq_cdfs(pbi->common.fc, tile_ctxs,
+ cm->tile_rows * cm->tile_cols);
+#endif // CONFIG_PVQ
+#endif // CONFIG_EC_ADAPT
+#if CONFIG_ADAPT_SCAN
+ av1_adapt_scan_order(cm);
+#endif // CONFIG_ADAPT_SCAN
+
+ if (!frame_is_intra_only(cm)) {
+ av1_adapt_inter_frame_probs(cm);
+ av1_adapt_mv_probs(cm, cm->allow_high_precision_mv);
+#if CONFIG_EC_ADAPT
+ av1_average_tile_inter_cdfs(&pbi->common, pbi->common.fc, tile_ctxs,
+ cdf_ptrs, cm->tile_rows * cm->tile_cols);
+ av1_average_tile_mv_cdfs(pbi->common.fc, tile_ctxs, cdf_ptrs,
+ cm->tile_rows * cm->tile_cols);
+#endif
+ }
+#if CONFIG_EC_ADAPT
+ aom_free(tile_ctxs);
+ aom_free(cdf_ptrs);
+#endif
+ } else {
+ debug_check_frame_counts(cm);
+ }
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data is corrupted.");
+ }
+
+#if CONFIG_INSPECTION
+ if (pbi->inspect_cb != NULL) {
+ (*pbi->inspect_cb)(pbi, pbi->inspect_ctx);
+ }
+#endif
+
+ // Non frame parallel update frame context here.
+ if (!cm->error_resilient_mode && !context_updated)
+ cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
+}
diff --git a/third_party/aom/av1/decoder/decodeframe.h b/third_party/aom/av1/decoder/decodeframe.h
new file mode 100644
index 000000000..a904658b0
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodeframe.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DECODEFRAME_H_
+#define AV1_DECODER_DECODEFRAME_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1Decoder;
+struct aom_read_bit_buffer;
+
+#if CONFIG_REFERENCE_BUFFER
+/* Placeholder for now */
+void read_sequence_header(SequenceHeader *seq_params);
+#endif
+
+int av1_read_sync_code(struct aom_read_bit_buffer *const rb);
+void av1_read_frame_size(struct aom_read_bit_buffer *rb, int *width,
+ int *height);
+BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb);
+
+void av1_decode_frame(struct AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end, const uint8_t **p_data_end);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AV1_DECODER_DECODEFRAME_H_
diff --git a/third_party/aom/av1/decoder/decodemv.c b/third_party/aom/av1/decoder/decodemv.c
new file mode 100644
index 000000000..ec0f87751
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodemv.c
@@ -0,0 +1,2405 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+
+#include "av1/common/common.h"
+#include "av1/common/entropy.h"
+#include "av1/common/entropymode.h"
+#include "av1/common/entropymv.h"
+#include "av1/common/mvref_common.h"
+#include "av1/common/pred_common.h"
+#include "av1/common/reconinter.h"
+#if CONFIG_EXT_INTRA
+#include "av1/common/reconintra.h"
+#endif // CONFIG_EXT_INTRA
+#include "av1/common/seg_common.h"
+#if CONFIG_WARPED_MOTION
+#include "av1/common/warped_motion.h"
+#endif // CONFIG_WARPED_MOTION
+
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/decodemv.h"
+
+#include "aom_dsp/aom_dsp_common.h"
+
+#define ACCT_STR __func__
+#if CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE
+static INLINE int read_uniform(aom_reader *r, int n) {
+ const int l = get_unsigned_bits(n);
+ const int m = (1 << l) - n;
+ const int v = aom_read_literal(r, l - 1, ACCT_STR);
+ assert(l != 0);
+ if (v < m)
+ return v;
+ else
+ return (v << 1) - m + aom_read_literal(r, 1, ACCT_STR);
+}
+#endif // CONFIG_EXT_INTRA || CONFIG_FILTER_INTRA || CONFIG_PALETTE
+
+#if CONFIG_EC_MULTISYMBOL
+static PREDICTION_MODE read_intra_mode(aom_reader *r, aom_cdf_prob *cdf) {
+ return (PREDICTION_MODE)
+ av1_intra_mode_inv[aom_read_symbol(r, cdf, INTRA_MODES, ACCT_STR)];
+}
+#else
+static PREDICTION_MODE read_intra_mode(aom_reader *r, const aom_prob *p) {
+ return (PREDICTION_MODE)aom_read_tree(r, av1_intra_mode_tree, p, ACCT_STR);
+}
+#endif
+
+#if CONFIG_DELTA_Q
+static int read_delta_qindex(AV1_COMMON *cm, MACROBLOCKD *xd, aom_reader *r,
+ MB_MODE_INFO *const mbmi, int mi_col, int mi_row) {
+ FRAME_COUNTS *counts = xd->counts;
+ int sign, abs, reduced_delta_qindex = 0;
+ BLOCK_SIZE bsize = mbmi->sb_type;
+ const int b_col = mi_col & MAX_MIB_MASK;
+ const int b_row = mi_row & MAX_MIB_MASK;
+ const int read_delta_q_flag = (b_col == 0 && b_row == 0);
+ int rem_bits, thr;
+ int i, smallval;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ (void)cm;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ if ((bsize != BLOCK_LARGEST || mbmi->skip == 0) && read_delta_q_flag) {
+#if !CONFIG_EC_MULTISYMBOL
+ int bit = 1;
+ abs = 0;
+ while (abs < DELTA_Q_SMALL && bit) {
+ bit = aom_read(r, ec_ctx->delta_q_prob[abs], ACCT_STR);
+ abs += bit;
+ }
+#else
+ abs = aom_read_symbol(r, ec_ctx->delta_q_cdf, DELTA_Q_PROBS + 1, ACCT_STR);
+#endif
+ smallval = (abs < DELTA_Q_SMALL);
+ if (counts) {
+ for (i = 0; i < abs; ++i) counts->delta_q[i][1]++;
+ if (smallval) counts->delta_q[abs][0]++;
+ }
+
+ if (!smallval) {
+ rem_bits = aom_read_literal(r, 3, ACCT_STR);
+ thr = (1 << rem_bits) + 1;
+ abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr;
+ }
+
+ if (abs) {
+ sign = aom_read_bit(r, ACCT_STR);
+ } else {
+ sign = 1;
+ }
+
+ reduced_delta_qindex = sign ? -abs : abs;
+ }
+ return reduced_delta_qindex;
+}
+#if CONFIG_EXT_DELTA_Q
+static int read_delta_lflevel(AV1_COMMON *cm, MACROBLOCKD *xd, aom_reader *r,
+ MB_MODE_INFO *const mbmi, int mi_col,
+ int mi_row) {
+ FRAME_COUNTS *counts = xd->counts;
+ int sign, abs, reduced_delta_lflevel = 0;
+ BLOCK_SIZE bsize = mbmi->sb_type;
+ const int b_col = mi_col & MAX_MIB_MASK;
+ const int b_row = mi_row & MAX_MIB_MASK;
+ const int read_delta_lf_flag = (b_col == 0 && b_row == 0);
+ int rem_bits, thr;
+ int i, smallval;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ (void)cm;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ if ((bsize != BLOCK_64X64 || mbmi->skip == 0) && read_delta_lf_flag) {
+#if !CONFIG_EC_MULTISYMBOL
+ int bit = 1;
+ abs = 0;
+ while (abs < DELTA_LF_SMALL && bit) {
+ bit = aom_read(r, ec_ctx->delta_lf_prob[abs], ACCT_STR);
+ abs += bit;
+ }
+#else
+ abs =
+ aom_read_symbol(r, ec_ctx->delta_lf_cdf, DELTA_LF_PROBS + 1, ACCT_STR);
+#endif
+ smallval = (abs < DELTA_LF_SMALL);
+ if (counts) {
+ for (i = 0; i < abs; ++i) counts->delta_lf[i][1]++;
+ if (smallval) counts->delta_lf[abs][0]++;
+ }
+ if (!smallval) {
+ rem_bits = aom_read_literal(r, 3, ACCT_STR);
+ thr = (1 << rem_bits) + 1;
+ abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr;
+ }
+
+ if (abs) {
+ sign = aom_read_bit(r, ACCT_STR);
+ } else {
+ sign = 1;
+ }
+
+ reduced_delta_lflevel = sign ? -abs : abs;
+ }
+ return reduced_delta_lflevel;
+}
+#endif
+#endif
+
+static PREDICTION_MODE read_intra_mode_y(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r, int size_group) {
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#elif CONFIG_EC_MULTISYMBOL
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ const PREDICTION_MODE y_mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, ec_ctx->y_mode_cdf[size_group]);
+#else
+ read_intra_mode(r, cm->fc->y_mode_prob[size_group]);
+#endif
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_EC_ADAPT
+ (void)cm;
+#endif
+ if (counts) ++counts->y_mode[size_group][y_mode];
+ return y_mode;
+}
+
+static PREDICTION_MODE read_intra_mode_uv(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r,
+ PREDICTION_MODE y_mode) {
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#elif CONFIG_EC_MULTISYMBOL
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ const PREDICTION_MODE uv_mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, ec_ctx->uv_mode_cdf[y_mode]);
+#else
+ read_intra_mode(r, cm->fc->uv_mode_prob[y_mode]);
+#endif
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_EC_ADAPT
+ (void)cm;
+#endif
+ if (counts) ++counts->uv_mode[y_mode][uv_mode];
+ return uv_mode;
+}
+
+#if CONFIG_EXT_INTER
+static INTERINTRA_MODE read_interintra_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r, int size_group) {
+ const INTERINTRA_MODE ii_mode = (INTERINTRA_MODE)aom_read_tree(
+ r, av1_interintra_mode_tree, cm->fc->interintra_mode_prob[size_group],
+ ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->interintra_mode[size_group][ii_mode];
+ return ii_mode;
+}
+#endif // CONFIG_EXT_INTER
+
+static PREDICTION_MODE read_inter_mode(FRAME_CONTEXT *ec_ctx, MACROBLOCKD *xd,
+ aom_reader *r, int16_t ctx) {
+#if CONFIG_REF_MV
+ FRAME_COUNTS *counts = xd->counts;
+ int16_t mode_ctx = ctx & NEWMV_CTX_MASK;
+ aom_prob mode_prob = ec_ctx->newmv_prob[mode_ctx];
+
+ if (aom_read(r, mode_prob, ACCT_STR) == 0) {
+ if (counts) ++counts->newmv_mode[mode_ctx][0];
+ return NEWMV;
+ }
+ if (counts) ++counts->newmv_mode[mode_ctx][1];
+
+ if (ctx & (1 << ALL_ZERO_FLAG_OFFSET)) return ZEROMV;
+
+ mode_ctx = (ctx >> ZEROMV_OFFSET) & ZEROMV_CTX_MASK;
+
+ mode_prob = ec_ctx->zeromv_prob[mode_ctx];
+ if (aom_read(r, mode_prob, ACCT_STR) == 0) {
+ if (counts) ++counts->zeromv_mode[mode_ctx][0];
+ return ZEROMV;
+ }
+ if (counts) ++counts->zeromv_mode[mode_ctx][1];
+
+ mode_ctx = (ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
+
+ if (ctx & (1 << SKIP_NEARESTMV_OFFSET)) mode_ctx = 6;
+ if (ctx & (1 << SKIP_NEARMV_OFFSET)) mode_ctx = 7;
+ if (ctx & (1 << SKIP_NEARESTMV_SUB8X8_OFFSET)) mode_ctx = 8;
+
+ mode_prob = ec_ctx->refmv_prob[mode_ctx];
+
+ if (aom_read(r, mode_prob, ACCT_STR) == 0) {
+ if (counts) ++counts->refmv_mode[mode_ctx][0];
+
+ return NEARESTMV;
+ } else {
+ if (counts) ++counts->refmv_mode[mode_ctx][1];
+ return NEARMV;
+ }
+
+ // Invalid prediction mode.
+ assert(0);
+#else
+#if CONFIG_EC_MULTISYMBOL
+ const int mode = av1_inter_mode_inv[aom_read_symbol(
+ r, ec_ctx->inter_mode_cdf[ctx], INTER_MODES, ACCT_STR)];
+#else
+ const int mode = aom_read_tree(r, av1_inter_mode_tree,
+ ec_ctx->inter_mode_probs[ctx], ACCT_STR);
+#endif
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->inter_mode[ctx][mode];
+
+ return NEARESTMV + mode;
+#endif
+}
+
+#if CONFIG_REF_MV
+static void read_drl_idx(const AV1_COMMON *cm, MACROBLOCKD *xd,
+ MB_MODE_INFO *mbmi, aom_reader *r) {
+ uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
+ mbmi->ref_mv_idx = 0;
+
+#if CONFIG_EXT_INTER
+ if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) {
+#else
+ if (mbmi->mode == NEWMV) {
+#endif
+ int idx;
+ for (idx = 0; idx < 2; ++idx) {
+ if (xd->ref_mv_count[ref_frame_type] > idx + 1) {
+ uint8_t drl_ctx = av1_drl_ctx(xd->ref_mv_stack[ref_frame_type], idx);
+ aom_prob drl_prob = cm->fc->drl_prob[drl_ctx];
+ if (!aom_read(r, drl_prob, ACCT_STR)) {
+ mbmi->ref_mv_idx = idx;
+ if (xd->counts) ++xd->counts->drl_mode[drl_ctx][0];
+ return;
+ }
+ mbmi->ref_mv_idx = idx + 1;
+ if (xd->counts) ++xd->counts->drl_mode[drl_ctx][1];
+ }
+ }
+ }
+
+ if (have_nearmv_in_inter_mode(mbmi->mode)) {
+ int idx;
+ // Offset the NEARESTMV mode.
+ // TODO(jingning): Unify the two syntax decoding loops after the NEARESTMV
+ // mode is factored in.
+ for (idx = 1; idx < 3; ++idx) {
+ if (xd->ref_mv_count[ref_frame_type] > idx + 1) {
+ uint8_t drl_ctx = av1_drl_ctx(xd->ref_mv_stack[ref_frame_type], idx);
+ aom_prob drl_prob = cm->fc->drl_prob[drl_ctx];
+ if (!aom_read(r, drl_prob, ACCT_STR)) {
+ mbmi->ref_mv_idx = idx - 1;
+ if (xd->counts) ++xd->counts->drl_mode[drl_ctx][0];
+ return;
+ }
+ mbmi->ref_mv_idx = idx;
+ if (xd->counts) ++xd->counts->drl_mode[drl_ctx][1];
+ }
+ }
+ }
+}
+#endif
+
+#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+static MOTION_MODE read_motion_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
+ MODE_INFO *mi, aom_reader *r) {
+ MB_MODE_INFO *mbmi = &mi->mbmi;
+ const MOTION_MODE last_motion_mode_allowed = motion_mode_allowed(
+#if CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION
+ 0, xd->global_motion,
+#endif // CONFIG_GLOBAL_MOTION && SEPARATE_GLOBAL_MOTION
+ mi);
+ int motion_mode;
+ FRAME_COUNTS *counts = xd->counts;
+
+ if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return SIMPLE_TRANSLATION;
+#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
+ if (last_motion_mode_allowed == OBMC_CAUSAL) {
+ motion_mode = aom_read(r, cm->fc->obmc_prob[mbmi->sb_type], ACCT_STR);
+ if (counts) ++counts->obmc[mbmi->sb_type][motion_mode];
+ return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode);
+ } else {
+#endif // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
+ motion_mode =
+ aom_read_tree(r, av1_motion_mode_tree,
+ cm->fc->motion_mode_prob[mbmi->sb_type], ACCT_STR);
+ if (counts) ++counts->motion_mode[mbmi->sb_type][motion_mode];
+ return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode);
+#if CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
+ }
+#endif // CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
+}
+#endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+
+#if CONFIG_EXT_INTER
+static PREDICTION_MODE read_inter_compound_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r, int16_t ctx) {
+ const int mode =
+ aom_read_tree(r, av1_inter_compound_mode_tree,
+ cm->fc->inter_compound_mode_probs[ctx], ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+
+ if (counts) ++counts->inter_compound_mode[ctx][mode];
+
+ assert(is_inter_compound_mode(NEAREST_NEARESTMV + mode));
+ return NEAREST_NEARESTMV + mode;
+}
+#endif // CONFIG_EXT_INTER
+
+static int read_segment_id(aom_reader *r, struct segmentation_probs *segp) {
+#if CONFIG_EC_MULTISYMBOL
+ return aom_read_symbol(r, segp->tree_cdf, MAX_SEGMENTS, ACCT_STR);
+#else
+ return aom_read_tree(r, av1_segment_tree, segp->tree_probs, ACCT_STR);
+#endif
+}
+
+#if CONFIG_VAR_TX
+static void read_tx_size_vartx(AV1_COMMON *cm, MACROBLOCKD *xd,
+ MB_MODE_INFO *mbmi, FRAME_COUNTS *counts,
+ TX_SIZE tx_size, int depth, int blk_row,
+ int blk_col, aom_reader *r) {
+ int is_split = 0;
+ const int tx_row = blk_row >> 1;
+ const int tx_col = blk_col >> 1;
+ const int max_blocks_high = max_block_high(xd, mbmi->sb_type, 0);
+ const int max_blocks_wide = max_block_wide(xd, mbmi->sb_type, 0);
+ int ctx = txfm_partition_context(xd->above_txfm_context + tx_col,
+ xd->left_txfm_context + tx_row,
+ mbmi->sb_type, tx_size);
+ TX_SIZE(*const inter_tx_size)
+ [MAX_MIB_SIZE] =
+ (TX_SIZE(*)[MAX_MIB_SIZE]) & mbmi->inter_tx_size[tx_row][tx_col];
+ if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
+
+ if (depth == MAX_VARTX_DEPTH) {
+ int idx, idy;
+ inter_tx_size[0][0] = tx_size;
+ for (idy = 0; idy < tx_size_high_unit[tx_size] / 2; ++idy)
+ for (idx = 0; idx < tx_size_wide_unit[tx_size] / 2; ++idx)
+ inter_tx_size[idy][idx] = tx_size;
+ mbmi->tx_size = tx_size;
+ mbmi->min_tx_size = AOMMIN(mbmi->min_tx_size, get_min_tx_size(tx_size));
+ if (counts) ++counts->txfm_partition[ctx][0];
+ txfm_partition_update(xd->above_txfm_context + tx_col,
+ xd->left_txfm_context + tx_row, tx_size, tx_size);
+ return;
+ }
+
+ is_split = aom_read(r, cm->fc->txfm_partition_prob[ctx], ACCT_STR);
+
+ if (is_split) {
+ const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
+ const int bsl = tx_size_wide_unit[sub_txs];
+ int i;
+
+ if (counts) ++counts->txfm_partition[ctx][1];
+
+ if (tx_size == TX_8X8) {
+ int idx, idy;
+ inter_tx_size[0][0] = sub_txs;
+ for (idy = 0; idy < tx_size_high_unit[tx_size] / 2; ++idy)
+ for (idx = 0; idx < tx_size_wide_unit[tx_size] / 2; ++idx)
+ inter_tx_size[idy][idx] = inter_tx_size[0][0];
+ mbmi->tx_size = sub_txs;
+ mbmi->min_tx_size = get_min_tx_size(mbmi->tx_size);
+ txfm_partition_update(xd->above_txfm_context + tx_col,
+ xd->left_txfm_context + tx_row, sub_txs, tx_size);
+ return;
+ }
+
+ assert(bsl > 0);
+ for (i = 0; i < 4; ++i) {
+ int offsetr = blk_row + (i >> 1) * bsl;
+ int offsetc = blk_col + (i & 0x01) * bsl;
+ read_tx_size_vartx(cm, xd, mbmi, counts, sub_txs, depth + 1, offsetr,
+ offsetc, r);
+ }
+ } else {
+ int idx, idy;
+ inter_tx_size[0][0] = tx_size;
+ for (idy = 0; idy < tx_size_high_unit[tx_size] / 2; ++idy)
+ for (idx = 0; idx < tx_size_wide_unit[tx_size] / 2; ++idx)
+ inter_tx_size[idy][idx] = tx_size;
+ mbmi->tx_size = tx_size;
+ mbmi->min_tx_size = AOMMIN(mbmi->min_tx_size, get_min_tx_size(tx_size));
+ if (counts) ++counts->txfm_partition[ctx][0];
+ txfm_partition_update(xd->above_txfm_context + tx_col,
+ xd->left_txfm_context + tx_row, tx_size, tx_size);
+ }
+}
+#endif
+
+static TX_SIZE read_selected_tx_size(AV1_COMMON *cm, MACROBLOCKD *xd,
+ int tx_size_cat, aom_reader *r) {
+ FRAME_COUNTS *counts = xd->counts;
+ const int ctx = get_tx_size_context(xd);
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ (void)cm;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ const int depth =
+#if CONFIG_EC_MULTISYMBOL
+ aom_read_symbol(r, ec_ctx->tx_size_cdf[tx_size_cat][ctx], tx_size_cat + 2,
+ ACCT_STR);
+#else
+ aom_read_tree(r, av1_tx_size_tree[tx_size_cat],
+ ec_ctx->tx_size_probs[tx_size_cat][ctx], ACCT_STR);
+#endif
+ const TX_SIZE tx_size = depth_to_tx_size(depth);
+#if CONFIG_RECT_TX
+ assert(!is_rect_tx(tx_size));
+#endif // CONFIG_RECT_TX
+ if (counts) ++counts->tx_size[tx_size_cat][ctx][depth];
+ return tx_size;
+}
+
+static TX_SIZE read_tx_size(AV1_COMMON *cm, MACROBLOCKD *xd, int is_inter,
+ int allow_select_inter, aom_reader *r) {
+ const TX_MODE tx_mode = cm->tx_mode;
+ const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
+ if (xd->lossless[xd->mi[0]->mbmi.segment_id]) return TX_4X4;
+#if CONFIG_CB4X4 && (CONFIG_VAR_TX || CONFIG_EXT_TX) && CONFIG_RECT_TX
+ if (bsize > BLOCK_4X4) {
+#else
+ if (bsize >= BLOCK_8X8) {
+#endif // CONFIG_CB4X4 && CONFIG_VAR_TX
+ if ((!is_inter || allow_select_inter) && tx_mode == TX_MODE_SELECT) {
+ const int32_t tx_size_cat = is_inter ? inter_tx_size_cat_lookup[bsize]
+ : intra_tx_size_cat_lookup[bsize];
+ const TX_SIZE coded_tx_size =
+ read_selected_tx_size(cm, xd, tx_size_cat, r);
+#if CONFIG_EXT_TX && CONFIG_RECT_TX
+ if (coded_tx_size > max_txsize_lookup[bsize]) {
+ assert(coded_tx_size == max_txsize_lookup[bsize] + 1);
+ return max_txsize_rect_lookup[bsize];
+ }
+#else
+ assert(coded_tx_size <= max_txsize_lookup[bsize]);
+#endif // CONFIG_EXT_TX && CONFIG_RECT_TX
+ return coded_tx_size;
+ } else {
+ return tx_size_from_tx_mode(bsize, tx_mode, is_inter);
+ }
+ } else {
+#if CONFIG_EXT_TX && CONFIG_RECT_TX
+ assert(IMPLIES(tx_mode == ONLY_4X4, bsize == BLOCK_4X4));
+ return max_txsize_rect_lookup[bsize];
+#else
+ return TX_4X4;
+#endif // CONFIG_EXT_TX && CONFIG_RECT_TX
+ }
+}
+
+static int dec_get_segment_id(const AV1_COMMON *cm, const uint8_t *segment_ids,
+ int mi_offset, int x_mis, int y_mis) {
+ int x, y, segment_id = INT_MAX;
+
+ for (y = 0; y < y_mis; y++)
+ for (x = 0; x < x_mis; x++)
+ segment_id =
+ AOMMIN(segment_id, segment_ids[mi_offset + y * cm->mi_cols + x]);
+
+ assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
+ return segment_id;
+}
+
+static void set_segment_id(AV1_COMMON *cm, int mi_offset, int x_mis, int y_mis,
+ int segment_id) {
+ int x, y;
+
+ assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
+
+ for (y = 0; y < y_mis; y++)
+ for (x = 0; x < x_mis; x++)
+ cm->current_frame_seg_map[mi_offset + y * cm->mi_cols + x] = segment_id;
+}
+
+static int read_intra_segment_id(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_offset, int x_mis, int y_mis,
+ aom_reader *r) {
+ struct segmentation *const seg = &cm->seg;
+ FRAME_COUNTS *counts = xd->counts;
+ struct segmentation_probs *const segp = &cm->fc->seg;
+ int segment_id;
+
+ if (!seg->enabled) return 0; // Default for disabled segmentation
+
+ assert(seg->update_map && !seg->temporal_update);
+
+ segment_id = read_segment_id(r, segp);
+ if (counts) ++counts->seg.tree_total[segment_id];
+ set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
+ return segment_id;
+}
+
+static void copy_segment_id(const AV1_COMMON *cm,
+ const uint8_t *last_segment_ids,
+ uint8_t *current_segment_ids, int mi_offset,
+ int x_mis, int y_mis) {
+ int x, y;
+
+ for (y = 0; y < y_mis; y++)
+ for (x = 0; x < x_mis; x++)
+ current_segment_ids[mi_offset + y * cm->mi_cols + x] =
+ last_segment_ids ? last_segment_ids[mi_offset + y * cm->mi_cols + x]
+ : 0;
+}
+
+static int read_inter_segment_id(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r) {
+ struct segmentation *const seg = &cm->seg;
+ FRAME_COUNTS *counts = xd->counts;
+ struct segmentation_probs *const segp = &cm->fc->seg;
+ MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
+ int predicted_segment_id, segment_id;
+ const int mi_offset = mi_row * cm->mi_cols + mi_col;
+ const int bw = mi_size_wide[mbmi->sb_type];
+ const int bh = mi_size_high[mbmi->sb_type];
+
+ // TODO(slavarnway): move x_mis, y_mis into xd ?????
+ const int x_mis = AOMMIN(cm->mi_cols - mi_col, bw);
+ const int y_mis = AOMMIN(cm->mi_rows - mi_row, bh);
+
+ if (!seg->enabled) return 0; // Default for disabled segmentation
+
+ predicted_segment_id = cm->last_frame_seg_map
+ ? dec_get_segment_id(cm, cm->last_frame_seg_map,
+ mi_offset, x_mis, y_mis)
+ : 0;
+
+ if (!seg->update_map) {
+ copy_segment_id(cm, cm->last_frame_seg_map, cm->current_frame_seg_map,
+ mi_offset, x_mis, y_mis);
+ return predicted_segment_id;
+ }
+
+ if (seg->temporal_update) {
+ const int ctx = av1_get_pred_context_seg_id(xd);
+ const aom_prob pred_prob = segp->pred_probs[ctx];
+ mbmi->seg_id_predicted = aom_read(r, pred_prob, ACCT_STR);
+ if (counts) ++counts->seg.pred[ctx][mbmi->seg_id_predicted];
+ if (mbmi->seg_id_predicted) {
+ segment_id = predicted_segment_id;
+ } else {
+ segment_id = read_segment_id(r, segp);
+ if (counts) ++counts->seg.tree_mispred[segment_id];
+ }
+ } else {
+ segment_id = read_segment_id(r, segp);
+ if (counts) ++counts->seg.tree_total[segment_id];
+ }
+ set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
+ return segment_id;
+}
+
+static int read_skip(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id,
+ aom_reader *r) {
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
+ return 1;
+ } else {
+ const int ctx = av1_get_skip_context(xd);
+ const int skip = aom_read(r, cm->fc->skip_probs[ctx], ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->skip[ctx][skip];
+ return skip;
+ }
+}
+
+#if CONFIG_PALETTE
+static void read_palette_mode_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ aom_reader *r) {
+ MODE_INFO *const mi = xd->mi[0];
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ const MODE_INFO *const above_mi = xd->above_mi;
+ const MODE_INFO *const left_mi = xd->left_mi;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ int i, n;
+ PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info;
+
+ if (mbmi->mode == DC_PRED) {
+ int palette_y_mode_ctx = 0;
+ if (above_mi)
+ palette_y_mode_ctx +=
+ (above_mi->mbmi.palette_mode_info.palette_size[0] > 0);
+ if (left_mi)
+ palette_y_mode_ctx +=
+ (left_mi->mbmi.palette_mode_info.palette_size[0] > 0);
+ if (aom_read(r, av1_default_palette_y_mode_prob[bsize - BLOCK_8X8]
+ [palette_y_mode_ctx],
+ ACCT_STR)) {
+ pmi->palette_size[0] =
+ aom_read_tree(r, av1_palette_size_tree,
+ av1_default_palette_y_size_prob[bsize - BLOCK_8X8],
+ ACCT_STR) +
+ 2;
+ n = pmi->palette_size[0];
+#if CONFIG_PALETTE_DELTA_ENCODING
+ const int min_bits = cm->bit_depth - 3;
+ int bits = min_bits + aom_read_literal(r, 2, ACCT_STR);
+ pmi->palette_colors[0] = aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ for (i = 1; i < n; ++i) {
+ pmi->palette_colors[i] = pmi->palette_colors[i - 1] +
+ aom_read_literal(r, bits, ACCT_STR) + 1;
+ bits = AOMMIN(
+ bits, av1_ceil_log2((1 << cm->bit_depth) - pmi->palette_colors[i]));
+ }
+#else
+ for (i = 0; i < n; ++i)
+ pmi->palette_colors[i] = aom_read_literal(r, cm->bit_depth, ACCT_STR);
+#endif // CONFIG_PALETTE_DELTA_ENCODING
+ xd->plane[0].color_index_map[0] = read_uniform(r, n);
+ assert(xd->plane[0].color_index_map[0] < n);
+ }
+ }
+
+ if (mbmi->uv_mode == DC_PRED) {
+ const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0);
+ if (aom_read(r, av1_default_palette_uv_mode_prob[palette_uv_mode_ctx],
+ ACCT_STR)) {
+ pmi->palette_size[1] =
+ aom_read_tree(r, av1_palette_size_tree,
+ av1_default_palette_uv_size_prob[bsize - BLOCK_8X8],
+ ACCT_STR) +
+ 2;
+ n = pmi->palette_size[1];
+#if CONFIG_PALETTE_DELTA_ENCODING
+ // U channel colors.
+ const int min_bits_u = cm->bit_depth - 3;
+ int bits = min_bits_u + aom_read_literal(r, 2, ACCT_STR);
+ pmi->palette_colors[PALETTE_MAX_SIZE] =
+ aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ for (i = 1; i < n; ++i) {
+ pmi->palette_colors[PALETTE_MAX_SIZE + i] =
+ pmi->palette_colors[PALETTE_MAX_SIZE + i - 1] +
+ aom_read_literal(r, bits, ACCT_STR);
+ bits = AOMMIN(bits,
+ av1_ceil_log2(1 + (1 << cm->bit_depth) -
+ pmi->palette_colors[PALETTE_MAX_SIZE + i]));
+ }
+ // V channel colors.
+ if (aom_read_bit(r, ACCT_STR)) { // Delta encoding.
+ const int min_bits_v = cm->bit_depth - 4;
+ const int max_val = 1 << cm->bit_depth;
+ bits = min_bits_v + aom_read_literal(r, 2, ACCT_STR);
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE] =
+ aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ for (i = 1; i < n; ++i) {
+ int delta = aom_read_literal(r, bits, ACCT_STR);
+ if (delta && aom_read_bit(r, ACCT_STR)) delta = -delta;
+ int val =
+ (int)pmi->palette_colors[2 * PALETTE_MAX_SIZE + i - 1] + delta;
+ if (val < 0) val += max_val;
+ if (val >= max_val) val -= max_val;
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] = val;
+ }
+ } else {
+ for (i = 0; i < n; ++i) {
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] =
+ aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ }
+ }
+#else
+ for (i = 0; i < n; ++i) {
+ pmi->palette_colors[PALETTE_MAX_SIZE + i] =
+ aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] =
+ aom_read_literal(r, cm->bit_depth, ACCT_STR);
+ }
+#endif // CONFIG_PALETTE_DELTA_ENCODING
+ xd->plane[1].color_index_map[0] = read_uniform(r, n);
+ assert(xd->plane[1].color_index_map[0] < n);
+ }
+ }
+}
+#endif // CONFIG_PALETTE
+
+#if CONFIG_FILTER_INTRA
+static void read_filter_intra_mode_info(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, aom_reader *r) {
+ MODE_INFO *const mi = xd->mi[0];
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ FRAME_COUNTS *counts = xd->counts;
+ FILTER_INTRA_MODE_INFO *filter_intra_mode_info =
+ &mbmi->filter_intra_mode_info;
+
+ if (mbmi->mode == DC_PRED
+#if CONFIG_PALETTE
+ && mbmi->palette_mode_info.palette_size[0] == 0
+#endif // CONFIG_PALETTE
+ ) {
+ filter_intra_mode_info->use_filter_intra_mode[0] =
+ aom_read(r, cm->fc->filter_intra_probs[0], ACCT_STR);
+ if (filter_intra_mode_info->use_filter_intra_mode[0]) {
+ filter_intra_mode_info->filter_intra_mode[0] =
+ read_uniform(r, FILTER_INTRA_MODES);
+ }
+ if (counts) {
+ ++counts
+ ->filter_intra[0][filter_intra_mode_info->use_filter_intra_mode[0]];
+ }
+ }
+ if (mbmi->uv_mode == DC_PRED
+#if CONFIG_PALETTE
+ && mbmi->palette_mode_info.palette_size[1] == 0
+#endif // CONFIG_PALETTE
+ ) {
+ filter_intra_mode_info->use_filter_intra_mode[1] =
+ aom_read(r, cm->fc->filter_intra_probs[1], ACCT_STR);
+ if (filter_intra_mode_info->use_filter_intra_mode[1]) {
+ filter_intra_mode_info->filter_intra_mode[1] =
+ read_uniform(r, FILTER_INTRA_MODES);
+ }
+ if (counts) {
+ ++counts
+ ->filter_intra[1][filter_intra_mode_info->use_filter_intra_mode[1]];
+ }
+ }
+}
+#endif // CONFIG_FILTER_INTRA
+
+#if CONFIG_EXT_INTRA
+static void read_intra_angle_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ aom_reader *r) {
+ MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+#if CONFIG_INTRA_INTERP
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *const ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *const ec_ctx = cm->fc;
+#endif // CONFIG_EC_ADAPT
+ const int ctx = av1_get_pred_context_intra_interp(xd);
+ int p_angle;
+#endif // CONFIG_INTRA_INTERP
+
+ (void)cm;
+ if (bsize < BLOCK_8X8) return;
+
+ if (av1_is_directional_mode(mbmi->mode, bsize)) {
+ mbmi->angle_delta[0] =
+ read_uniform(r, 2 * MAX_ANGLE_DELTA + 1) - MAX_ANGLE_DELTA;
+#if CONFIG_INTRA_INTERP
+ p_angle = mode_to_angle_map[mbmi->mode] + mbmi->angle_delta[0] * ANGLE_STEP;
+ if (av1_is_intra_filter_switchable(p_angle)) {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_EC_MULTISYMBOL
+ mbmi->intra_filter = aom_read_symbol(r, ec_ctx->intra_filter_cdf[ctx],
+ INTRA_FILTERS, ACCT_STR);
+#else
+ mbmi->intra_filter = aom_read_tree(
+ r, av1_intra_filter_tree, ec_ctx->intra_filter_probs[ctx], ACCT_STR);
+#endif // CONFIG_EC_MULTISYMBOL
+ if (counts) ++counts->intra_filter[ctx][mbmi->intra_filter];
+ } else {
+ mbmi->intra_filter = INTRA_FILTER_LINEAR;
+ }
+#endif // CONFIG_INTRA_INTERP
+ }
+
+ if (av1_is_directional_mode(mbmi->uv_mode, bsize)) {
+ mbmi->angle_delta[1] =
+ read_uniform(r, 2 * MAX_ANGLE_DELTA + 1) - MAX_ANGLE_DELTA;
+ }
+}
+#endif // CONFIG_EXT_INTRA
+
+void av1_read_tx_type(const AV1_COMMON *const cm, MACROBLOCKD *xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif
+#if CONFIG_TXK_SEL
+ int block, int plane,
+#endif
+ aom_reader *r) {
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+ const int inter_block = is_inter_block(mbmi);
+#if CONFIG_VAR_TX
+ const TX_SIZE tx_size = inter_block ? mbmi->min_tx_size : mbmi->tx_size;
+#else
+ const TX_SIZE tx_size = mbmi->tx_size;
+#endif
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+#if !CONFIG_TXK_SEL
+ TX_TYPE *tx_type = &mbmi->tx_type;
+#else
+ // only y plane's tx_type is transmitted
+ if (plane > 0) return;
+ TX_TYPE *tx_type = &mbmi->txk_type[block];
+#endif
+
+ if (!FIXED_TX_TYPE) {
+#if CONFIG_EXT_TX
+ const TX_SIZE square_tx_size = txsize_sqr_map[tx_size];
+ if (get_ext_tx_types(tx_size, mbmi->sb_type, inter_block,
+ cm->reduced_tx_set_used) > 1 &&
+ ((!cm->seg.enabled && cm->base_qindex > 0) ||
+ (cm->seg.enabled && xd->qindex[mbmi->segment_id] > 0)) &&
+ !mbmi->skip &&
+#if CONFIG_SUPERTX
+ !supertx_enabled &&
+#endif // CONFIG_SUPERTX
+ !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
+ const int eset = get_ext_tx_set(tx_size, mbmi->sb_type, inter_block,
+ cm->reduced_tx_set_used);
+ FRAME_COUNTS *counts = xd->counts;
+
+ if (inter_block) {
+ if (eset > 0) {
+#if CONFIG_EC_MULTISYMBOL
+ *tx_type = av1_ext_tx_inter_inv[eset][aom_read_symbol(
+ r, ec_ctx->inter_ext_tx_cdf[eset][square_tx_size],
+ ext_tx_cnt_inter[eset], ACCT_STR)];
+#else
+ *tx_type = aom_read_tree(
+ r, av1_ext_tx_inter_tree[eset],
+ ec_ctx->inter_ext_tx_prob[eset][square_tx_size], ACCT_STR);
+#endif
+ if (counts) ++counts->inter_ext_tx[eset][square_tx_size][*tx_type];
+ }
+ } else if (ALLOW_INTRA_EXT_TX) {
+ if (eset > 0) {
+#if CONFIG_EC_MULTISYMBOL
+ *tx_type = av1_ext_tx_intra_inv[eset][aom_read_symbol(
+ r, ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][mbmi->mode],
+ ext_tx_cnt_intra[eset], ACCT_STR)];
+#else
+ *tx_type = aom_read_tree(
+ r, av1_ext_tx_intra_tree[eset],
+ ec_ctx->intra_ext_tx_prob[eset][square_tx_size][mbmi->mode],
+ ACCT_STR);
+#endif
+ if (counts)
+ ++counts->intra_ext_tx[eset][square_tx_size][mbmi->mode][*tx_type];
+ }
+ }
+ } else {
+ *tx_type = DCT_DCT;
+ }
+#else
+
+ if (tx_size < TX_32X32 &&
+ ((!cm->seg.enabled && cm->base_qindex > 0) ||
+ (cm->seg.enabled && xd->qindex[mbmi->segment_id] > 0)) &&
+ !mbmi->skip &&
+#if CONFIG_SUPERTX
+ !supertx_enabled &&
+#endif // CONFIG_SUPERTX
+ !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
+ FRAME_COUNTS *counts = xd->counts;
+
+ if (inter_block) {
+#if CONFIG_EC_MULTISYMBOL
+ *tx_type = av1_ext_tx_inv[aom_read_symbol(
+ r, ec_ctx->inter_ext_tx_cdf[tx_size], TX_TYPES, ACCT_STR)];
+#else
+ *tx_type = aom_read_tree(r, av1_ext_tx_tree,
+ ec_ctx->inter_ext_tx_prob[tx_size], ACCT_STR);
+#endif
+ if (counts) ++counts->inter_ext_tx[tx_size][*tx_type];
+ } else {
+ const TX_TYPE tx_type_nom = intra_mode_to_tx_type_context[mbmi->mode];
+#if CONFIG_EC_MULTISYMBOL
+ *tx_type = av1_ext_tx_inv[aom_read_symbol(
+ r, ec_ctx->intra_ext_tx_cdf[tx_size][tx_type_nom], TX_TYPES,
+ ACCT_STR)];
+#else
+ *tx_type = aom_read_tree(
+ r, av1_ext_tx_tree, ec_ctx->intra_ext_tx_prob[tx_size][tx_type_nom],
+ ACCT_STR);
+#endif
+ if (counts) ++counts->intra_ext_tx[tx_size][tx_type_nom][*tx_type];
+ }
+ } else {
+ *tx_type = DCT_DCT;
+ }
+#endif // CONFIG_EXT_TX
+ }
+}
+
+#if CONFIG_INTRABC
+static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref,
+ nmv_context *ctx, nmv_context_counts *counts,
+ int allow_hp);
+
+static INLINE int is_mv_valid(const MV *mv);
+
+static INLINE int assign_dv(AV1_COMMON *cm, MACROBLOCKD *xd, int_mv *mv,
+ const int_mv *ref_mv, int mi_row, int mi_col,
+ BLOCK_SIZE bsize, aom_reader *r) {
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ (void)cm;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+ FRAME_COUNTS *counts = xd->counts;
+ nmv_context_counts *const dv_counts = counts ? &counts->dv : NULL;
+ read_mv(r, &mv->as_mv, &ref_mv->as_mv, &ec_ctx->ndvc, dv_counts, 0);
+ int valid = is_mv_valid(&mv->as_mv) &&
+ is_dv_valid(mv->as_mv, &xd->tile, mi_row, mi_col, bsize);
+ // TODO(aconverse@google.com): additional validation
+ return valid;
+}
+#endif // CONFIG_INTRABC
+
+static void read_intra_frame_mode_info(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r) {
+ MODE_INFO *const mi = xd->mi[0];
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ const MODE_INFO *above_mi = xd->above_mi;
+ const MODE_INFO *left_mi = xd->left_mi;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ int i;
+ const int mi_offset = mi_row * cm->mi_cols + mi_col;
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+
+ // TODO(slavarnway): move x_mis, y_mis into xd ?????
+ const int x_mis = AOMMIN(cm->mi_cols - mi_col, bw);
+ const int y_mis = AOMMIN(cm->mi_rows - mi_row, bh);
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#elif CONFIG_EC_MULTISYMBOL
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ mbmi->segment_id = read_intra_segment_id(cm, xd, mi_offset, x_mis, y_mis, r);
+ mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
+
+#if CONFIG_DELTA_Q
+ if (cm->delta_q_present_flag) {
+ xd->current_qindex =
+ xd->prev_qindex +
+ read_delta_qindex(cm, xd, r, mbmi, mi_col, mi_row) * cm->delta_q_res;
+ /* Normative: Clamp to [1,MAXQ] to not interfere with lossless mode */
+ xd->current_qindex = clamp(xd->current_qindex, 1, MAXQ);
+ xd->prev_qindex = xd->current_qindex;
+#if CONFIG_EXT_DELTA_Q
+ if (cm->delta_lf_present_flag) {
+ mbmi->current_delta_lf_from_base = xd->current_delta_lf_from_base =
+ xd->prev_delta_lf_from_base +
+ read_delta_lflevel(cm, xd, r, mbmi, mi_col, mi_row) *
+ cm->delta_lf_res;
+ xd->prev_delta_lf_from_base = xd->current_delta_lf_from_base;
+ }
+#endif
+ }
+#endif
+
+ mbmi->tx_size = read_tx_size(cm, xd, 0, 1, r);
+ mbmi->ref_frame[0] = INTRA_FRAME;
+ mbmi->ref_frame[1] = NONE_FRAME;
+
+#if CONFIG_INTRABC
+ if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools) {
+ mbmi->use_intrabc = aom_read(r, INTRABC_PROB, ACCT_STR);
+ if (mbmi->use_intrabc) {
+ int_mv dv_ref;
+ mbmi->mode = mbmi->uv_mode = DC_PRED;
+#if CONFIG_DUAL_FILTER
+ for (int idx = 0; idx < 4; ++idx) mbmi->interp_filter[idx] = BILINEAR;
+#else
+ mbmi->interp_filter = BILINEAR;
+#endif
+ av1_find_ref_dv(&dv_ref, mi_row, mi_col);
+ xd->corrupted |=
+ !assign_dv(cm, xd, &mbmi->mv[0], &dv_ref, mi_row, mi_col, bsize, r);
+ return;
+ }
+ }
+#endif // CONFIG_INTRABC
+
+#if CONFIG_CB4X4
+ (void)i;
+ mbmi->mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 0));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 0));
+#endif
+#else
+ switch (bsize) {
+ case BLOCK_4X4:
+ for (i = 0; i < 4; ++i)
+ mi->bmi[i].as_mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r,
+ get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, i));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, i));
+#endif
+ mbmi->mode = mi->bmi[3].as_mode;
+ break;
+ case BLOCK_4X8:
+ mi->bmi[0].as_mode = mi->bmi[2].as_mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 0));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 0));
+#endif
+ mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 1));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 1));
+#endif
+ break;
+ case BLOCK_8X4:
+ mi->bmi[0].as_mode = mi->bmi[1].as_mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 0));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 0));
+#endif
+ mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 2));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 2));
+#endif
+ break;
+ default:
+ mbmi->mode =
+#if CONFIG_EC_MULTISYMBOL
+ read_intra_mode(r, get_y_mode_cdf(ec_ctx, mi, above_mi, left_mi, 0));
+#else
+ read_intra_mode(r, get_y_mode_probs(cm, mi, above_mi, left_mi, 0));
+#endif
+ }
+#endif
+
+#if CONFIG_CB4X4
+ if (is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
+ xd->plane[1].subsampling_y))
+ mbmi->uv_mode = read_intra_mode_uv(cm, xd, r, mbmi->mode);
+#else
+ mbmi->uv_mode = read_intra_mode_uv(cm, xd, r, mbmi->mode);
+#endif
+
+#if CONFIG_EXT_INTRA
+ read_intra_angle_info(cm, xd, r);
+#endif // CONFIG_EXT_INTRA
+#if CONFIG_PALETTE
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+ if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools)
+ read_palette_mode_info(cm, xd, r);
+#endif // CONFIG_PALETTE
+#if CONFIG_FILTER_INTRA
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[0] = 0;
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[1] = 0;
+ if (bsize >= BLOCK_8X8 || CONFIG_CB4X4)
+ read_filter_intra_mode_info(cm, xd, r);
+#endif // CONFIG_FILTER_INTRA
+
+#if !CONFIG_TXK_SEL
+ av1_read_tx_type(cm, xd,
+#if CONFIG_SUPERTX
+ 0,
+#endif
+ r);
+#endif // !CONFIG_TXK_SEL
+}
+
+static int read_mv_component(aom_reader *r, nmv_component *mvcomp, int usehp) {
+ int mag, d, fr, hp;
+ const int sign = aom_read(r, mvcomp->sign, ACCT_STR);
+ const int mv_class =
+#if CONFIG_EC_MULTISYMBOL
+ aom_read_symbol(r, mvcomp->class_cdf, MV_CLASSES, ACCT_STR);
+#else
+ aom_read_tree(r, av1_mv_class_tree, mvcomp->classes, ACCT_STR);
+#endif
+ const int class0 = mv_class == MV_CLASS_0;
+
+ // Integer part
+ if (class0) {
+ d = aom_read(r, mvcomp->class0[0], ACCT_STR);
+ mag = 0;
+ } else {
+ int i;
+ const int n = mv_class + CLASS0_BITS - 1; // number of bits
+
+ d = 0;
+ for (i = 0; i < n; ++i) d |= aom_read(r, mvcomp->bits[i], ACCT_STR) << i;
+ mag = CLASS0_SIZE << (mv_class + 2);
+ }
+
+// Fractional part
+#if CONFIG_EC_MULTISYMBOL
+ fr = aom_read_symbol(r, class0 ? mvcomp->class0_fp_cdf[d] : mvcomp->fp_cdf,
+ MV_FP_SIZE, ACCT_STR);
+#else
+ fr = aom_read_tree(r, av1_mv_fp_tree,
+ class0 ? mvcomp->class0_fp[d] : mvcomp->fp, ACCT_STR);
+#endif
+
+ // High precision part (if hp is not used, the default value of the hp is 1)
+ hp = usehp ? aom_read(r, class0 ? mvcomp->class0_hp : mvcomp->hp, ACCT_STR)
+ : 1;
+
+ // Result
+ mag += ((d << 3) | (fr << 1) | hp) + 1;
+ return sign ? -mag : mag;
+}
+
+static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref,
+ nmv_context *ctx, nmv_context_counts *counts,
+ int allow_hp) {
+ MV_JOINT_TYPE joint_type;
+ MV diff = { 0, 0 };
+ joint_type =
+#if CONFIG_EC_MULTISYMBOL
+ (MV_JOINT_TYPE)aom_read_symbol(r, ctx->joint_cdf, MV_JOINTS, ACCT_STR);
+#else
+ (MV_JOINT_TYPE)aom_read_tree(r, av1_mv_joint_tree, ctx->joints, ACCT_STR);
+#endif
+
+ if (mv_joint_vertical(joint_type))
+ diff.row = read_mv_component(r, &ctx->comps[0], allow_hp);
+
+ if (mv_joint_horizontal(joint_type))
+ diff.col = read_mv_component(r, &ctx->comps[1], allow_hp);
+
+ av1_inc_mv(&diff, counts, allow_hp);
+
+ mv->row = ref->row + diff.row;
+ mv->col = ref->col + diff.col;
+}
+
+static REFERENCE_MODE read_block_reference_mode(AV1_COMMON *cm,
+ const MACROBLOCKD *xd,
+ aom_reader *r) {
+#if !SUB8X8_COMP_REF
+ if (xd->mi[0]->mbmi.sb_type < BLOCK_8X8) return SINGLE_REFERENCE;
+#endif
+ if (cm->reference_mode == REFERENCE_MODE_SELECT) {
+ const int ctx = av1_get_reference_mode_context(cm, xd);
+ const REFERENCE_MODE mode =
+ (REFERENCE_MODE)aom_read(r, cm->fc->comp_inter_prob[ctx], ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->comp_inter[ctx][mode];
+ return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE
+ } else {
+ return cm->reference_mode;
+ }
+}
+
+// Read the referncence frame
+static void read_ref_frames(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ aom_reader *r, int segment_id,
+ MV_REFERENCE_FRAME ref_frame[2]) {
+ FRAME_CONTEXT *const fc = cm->fc;
+ FRAME_COUNTS *counts = xd->counts;
+
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
+ ref_frame[0] = (MV_REFERENCE_FRAME)get_segdata(&cm->seg, segment_id,
+ SEG_LVL_REF_FRAME);
+ ref_frame[1] = NONE_FRAME;
+ } else {
+ const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r);
+ // FIXME(rbultje) I'm pretty sure this breaks segmentation ref frame coding
+ if (mode == COMPOUND_REFERENCE) {
+#if CONFIG_LOWDELAY_COMPOUND // Normative in decoder (for low delay)
+ const int idx = 1;
+#else
+#if CONFIG_EXT_REFS
+ const int idx = cm->ref_frame_sign_bias[cm->comp_bwd_ref[0]];
+#else
+ const int idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref];
+#endif // CONFIG_EXT_REFS
+#endif
+ const int ctx = av1_get_pred_context_comp_ref_p(cm, xd);
+
+ const int bit = aom_read(r, fc->comp_ref_prob[ctx][0], ACCT_STR);
+ if (counts) ++counts->comp_ref[ctx][0][bit];
+
+#if CONFIG_EXT_REFS
+ // Decode forward references.
+ if (!bit) {
+ const int ctx1 = av1_get_pred_context_comp_ref_p1(cm, xd);
+ const int bit1 = aom_read(r, fc->comp_ref_prob[ctx1][1], ACCT_STR);
+ if (counts) ++counts->comp_ref[ctx1][1][bit1];
+ ref_frame[!idx] = cm->comp_fwd_ref[bit1 ? 0 : 1];
+ } else {
+ const int ctx2 = av1_get_pred_context_comp_ref_p2(cm, xd);
+ const int bit2 = aom_read(r, fc->comp_ref_prob[ctx2][2], ACCT_STR);
+ if (counts) ++counts->comp_ref[ctx2][2][bit2];
+ ref_frame[!idx] = cm->comp_fwd_ref[bit2 ? 3 : 2];
+ }
+
+ // Decode backward references.
+ {
+ const int ctx_bwd = av1_get_pred_context_comp_bwdref_p(cm, xd);
+ const int bit_bwd =
+ aom_read(r, fc->comp_bwdref_prob[ctx_bwd][0], ACCT_STR);
+ if (counts) ++counts->comp_bwdref[ctx_bwd][0][bit_bwd];
+ ref_frame[idx] = cm->comp_bwd_ref[bit_bwd];
+ }
+#else
+ ref_frame[!idx] = cm->comp_var_ref[bit];
+ ref_frame[idx] = cm->comp_fixed_ref;
+#endif // CONFIG_EXT_REFS
+ } else if (mode == SINGLE_REFERENCE) {
+#if CONFIG_EXT_REFS
+ const int ctx0 = av1_get_pred_context_single_ref_p1(xd);
+ const int bit0 = aom_read(r, fc->single_ref_prob[ctx0][0], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx0][0][bit0];
+
+ if (bit0) {
+ const int ctx1 = av1_get_pred_context_single_ref_p2(xd);
+ const int bit1 = aom_read(r, fc->single_ref_prob[ctx1][1], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx1][1][bit1];
+ ref_frame[0] = bit1 ? ALTREF_FRAME : BWDREF_FRAME;
+ } else {
+ const int ctx2 = av1_get_pred_context_single_ref_p3(xd);
+ const int bit2 = aom_read(r, fc->single_ref_prob[ctx2][2], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx2][2][bit2];
+ if (bit2) {
+ const int ctx4 = av1_get_pred_context_single_ref_p5(xd);
+ const int bit4 = aom_read(r, fc->single_ref_prob[ctx4][4], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx4][4][bit4];
+ ref_frame[0] = bit4 ? GOLDEN_FRAME : LAST3_FRAME;
+ } else {
+ const int ctx3 = av1_get_pred_context_single_ref_p4(xd);
+ const int bit3 = aom_read(r, fc->single_ref_prob[ctx3][3], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx3][3][bit3];
+ ref_frame[0] = bit3 ? LAST2_FRAME : LAST_FRAME;
+ }
+ }
+#else
+ const int ctx0 = av1_get_pred_context_single_ref_p1(xd);
+ const int bit0 = aom_read(r, fc->single_ref_prob[ctx0][0], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx0][0][bit0];
+
+ if (bit0) {
+ const int ctx1 = av1_get_pred_context_single_ref_p2(xd);
+ const int bit1 = aom_read(r, fc->single_ref_prob[ctx1][1], ACCT_STR);
+ if (counts) ++counts->single_ref[ctx1][1][bit1];
+ ref_frame[0] = bit1 ? ALTREF_FRAME : GOLDEN_FRAME;
+ } else {
+ ref_frame[0] = LAST_FRAME;
+ }
+#endif // CONFIG_EXT_REFS
+
+ ref_frame[1] = NONE_FRAME;
+ } else {
+ assert(0 && "Invalid prediction mode.");
+ }
+ }
+}
+
+static INLINE void read_mb_interp_filter(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ MB_MODE_INFO *const mbmi,
+ aom_reader *r) {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+ if (!av1_is_interp_needed(xd)) {
+ set_default_interp_filters(mbmi, cm->interp_filter);
+ return;
+ }
+
+#if CONFIG_DUAL_FILTER
+ if (cm->interp_filter != SWITCHABLE) {
+ int dir;
+
+ for (dir = 0; dir < 4; ++dir) mbmi->interp_filter[dir] = cm->interp_filter;
+ } else {
+ int dir;
+
+ for (dir = 0; dir < 2; ++dir) {
+ const int ctx = av1_get_pred_context_switchable_interp(xd, dir);
+ mbmi->interp_filter[dir] = EIGHTTAP_REGULAR;
+
+ if (has_subpel_mv_component(xd->mi[0], xd, dir) ||
+ (mbmi->ref_frame[1] > INTRA_FRAME &&
+ has_subpel_mv_component(xd->mi[0], xd, dir + 2))) {
+#if CONFIG_EC_MULTISYMBOL
+ mbmi->interp_filter[dir] =
+ (InterpFilter)av1_switchable_interp_inv[aom_read_symbol(
+ r, ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS,
+ ACCT_STR)];
+#else
+ mbmi->interp_filter[dir] = (InterpFilter)aom_read_tree(
+ r, av1_switchable_interp_tree, ec_ctx->switchable_interp_prob[ctx],
+ ACCT_STR);
+#endif
+ if (counts) ++counts->switchable_interp[ctx][mbmi->interp_filter[dir]];
+ }
+ }
+ // The index system works as:
+ // (0, 1) -> (vertical, horizontal) filter types for the first ref frame.
+ // (2, 3) -> (vertical, horizontal) filter types for the second ref frame.
+ mbmi->interp_filter[2] = mbmi->interp_filter[0];
+ mbmi->interp_filter[3] = mbmi->interp_filter[1];
+ }
+#else // CONFIG_DUAL_FILTER
+ if (cm->interp_filter != SWITCHABLE) {
+ mbmi->interp_filter = cm->interp_filter;
+ } else {
+ const int ctx = av1_get_pred_context_switchable_interp(xd);
+#if CONFIG_EC_MULTISYMBOL
+ mbmi->interp_filter =
+ (InterpFilter)av1_switchable_interp_inv[aom_read_symbol(
+ r, ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS,
+ ACCT_STR)];
+#else
+ mbmi->interp_filter = (InterpFilter)aom_read_tree(
+ r, av1_switchable_interp_tree, ec_ctx->switchable_interp_prob[ctx],
+ ACCT_STR);
+#endif
+ if (counts) ++counts->switchable_interp[ctx][mbmi->interp_filter];
+ }
+#endif // CONFIG_DUAL_FILTER
+}
+
+static void read_intra_block_mode_info(AV1_COMMON *const cm, const int mi_row,
+ const int mi_col, MACROBLOCKD *const xd,
+ MODE_INFO *mi, aom_reader *r) {
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ const BLOCK_SIZE bsize = mi->mbmi.sb_type;
+ int i;
+
+ mbmi->ref_frame[0] = INTRA_FRAME;
+ mbmi->ref_frame[1] = NONE_FRAME;
+
+#if CONFIG_CB4X4
+ (void)i;
+ mbmi->mode = read_intra_mode_y(cm, xd, r, size_group_lookup[bsize]);
+#else
+ switch (bsize) {
+ case BLOCK_4X4:
+ for (i = 0; i < 4; ++i)
+ mi->bmi[i].as_mode = read_intra_mode_y(cm, xd, r, 0);
+ mbmi->mode = mi->bmi[3].as_mode;
+ break;
+ case BLOCK_4X8:
+ mi->bmi[0].as_mode = mi->bmi[2].as_mode = read_intra_mode_y(cm, xd, r, 0);
+ mi->bmi[1].as_mode = mi->bmi[3].as_mode = mbmi->mode =
+ read_intra_mode_y(cm, xd, r, 0);
+ break;
+ case BLOCK_8X4:
+ mi->bmi[0].as_mode = mi->bmi[1].as_mode = read_intra_mode_y(cm, xd, r, 0);
+ mi->bmi[2].as_mode = mi->bmi[3].as_mode = mbmi->mode =
+ read_intra_mode_y(cm, xd, r, 0);
+ break;
+ default:
+ mbmi->mode = read_intra_mode_y(cm, xd, r, size_group_lookup[bsize]);
+ }
+#endif
+
+#if CONFIG_CB4X4
+ if (is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
+ xd->plane[1].subsampling_y))
+ mbmi->uv_mode = read_intra_mode_uv(cm, xd, r, mbmi->mode);
+#else
+ mbmi->uv_mode = read_intra_mode_uv(cm, xd, r, mbmi->mode);
+ (void)mi_row;
+ (void)mi_col;
+#endif
+
+#if CONFIG_EXT_INTRA
+ read_intra_angle_info(cm, xd, r);
+#endif // CONFIG_EXT_INTRA
+#if CONFIG_PALETTE
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+ if (bsize >= BLOCK_8X8 && cm->allow_screen_content_tools)
+ read_palette_mode_info(cm, xd, r);
+#endif // CONFIG_PALETTE
+#if CONFIG_FILTER_INTRA
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[0] = 0;
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[1] = 0;
+ if (bsize >= BLOCK_8X8 || CONFIG_CB4X4)
+ read_filter_intra_mode_info(cm, xd, r);
+#endif // CONFIG_FILTER_INTRA
+}
+
+static INLINE int is_mv_valid(const MV *mv) {
+ return mv->row > MV_LOW && mv->row < MV_UPP && mv->col > MV_LOW &&
+ mv->col < MV_UPP;
+}
+
+static INLINE int assign_mv(AV1_COMMON *cm, MACROBLOCKD *xd,
+ PREDICTION_MODE mode,
+ MV_REFERENCE_FRAME ref_frame[2], int block,
+ int_mv mv[2], int_mv ref_mv[2],
+ int_mv nearest_mv[2], int_mv near_mv[2], int mi_row,
+ int mi_col, int is_compound, int allow_hp,
+ aom_reader *r) {
+ int i;
+ int ret = 1;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+ BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
+#if CONFIG_REF_MV
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+#if CONFIG_CB4X4
+ int_mv *pred_mv = mbmi->pred_mv;
+ (void)block;
+#else
+ int_mv *pred_mv =
+ (bsize >= BLOCK_8X8) ? mbmi->pred_mv : xd->mi[0]->bmi[block].pred_mv;
+#endif // CONFIG_CB4X4
+#else
+ (void)block;
+#endif // CONFIG_REF_MV
+ (void)ref_frame;
+ (void)cm;
+ (void)mi_row;
+ (void)mi_col;
+ (void)bsize;
+
+ switch (mode) {
+ case NEWMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if !CONFIG_REF_MV
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ for (i = 0; i < 1 + is_compound; ++i) {
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx =
+ av1_nmv_ctx(xd->ref_mv_count[rf_type], xd->ref_mv_stack[rf_type], i,
+ mbmi->ref_mv_idx);
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+#endif
+ read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, nmvc, mv_counts, allow_hp);
+ ret = ret && is_mv_valid(&mv[i].as_mv);
+
+#if CONFIG_REF_MV
+ pred_mv[i].as_int = ref_mv[i].as_int;
+#endif
+ }
+ break;
+ }
+ case NEARESTMV: {
+ mv[0].as_int = nearest_mv[0].as_int;
+ if (is_compound) mv[1].as_int = nearest_mv[1].as_int;
+
+#if CONFIG_REF_MV
+ pred_mv[0].as_int = nearest_mv[0].as_int;
+ if (is_compound) pred_mv[1].as_int = nearest_mv[1].as_int;
+#endif
+ break;
+ }
+ case NEARMV: {
+ mv[0].as_int = near_mv[0].as_int;
+ if (is_compound) mv[1].as_int = near_mv[1].as_int;
+
+#if CONFIG_REF_MV
+ pred_mv[0].as_int = near_mv[0].as_int;
+ if (is_compound) pred_mv[1].as_int = near_mv[1].as_int;
+#endif
+ break;
+ }
+ case ZEROMV: {
+#if CONFIG_GLOBAL_MOTION
+ mv[0].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
+ cm->allow_high_precision_mv, bsize,
+ mi_col, mi_row, block)
+ .as_int;
+ if (is_compound)
+ mv[1].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[1]],
+ cm->allow_high_precision_mv, bsize,
+ mi_col, mi_row, block)
+ .as_int;
+#else
+ mv[0].as_int = 0;
+ if (is_compound) mv[1].as_int = 0;
+#endif // CONFIG_GLOBAL_MOTION
+
+#if CONFIG_REF_MV
+ pred_mv[0].as_int = mv[0].as_int;
+ if (is_compound) pred_mv[1].as_int = mv[1].as_int;
+#endif
+ break;
+ }
+#if CONFIG_EXT_INTER
+ case NEW_NEWMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if !CONFIG_REF_MV
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ assert(is_compound);
+ for (i = 0; i < 2; ++i) {
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx =
+ av1_nmv_ctx(xd->ref_mv_count[rf_type], xd->ref_mv_stack[rf_type], i,
+ mbmi->ref_mv_idx);
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+#endif
+ read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, nmvc, mv_counts, allow_hp);
+ ret = ret && is_mv_valid(&mv[i].as_mv);
+ }
+ break;
+ }
+ case NEAREST_NEARESTMV: {
+ assert(is_compound);
+ mv[0].as_int = nearest_mv[0].as_int;
+ mv[1].as_int = nearest_mv[1].as_int;
+ break;
+ }
+ case NEAREST_NEARMV: {
+ assert(is_compound);
+ mv[0].as_int = nearest_mv[0].as_int;
+ mv[1].as_int = near_mv[1].as_int;
+ break;
+ }
+ case NEAR_NEARESTMV: {
+ assert(is_compound);
+ mv[0].as_int = near_mv[0].as_int;
+ mv[1].as_int = nearest_mv[1].as_int;
+ break;
+ }
+ case NEAR_NEARMV: {
+ assert(is_compound);
+ mv[0].as_int = near_mv[0].as_int;
+ mv[1].as_int = near_mv[1].as_int;
+ break;
+ }
+ case NEW_NEARESTMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx = av1_nmv_ctx(xd->ref_mv_count[rf_type],
+ xd->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx);
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+#else
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, mv_counts, allow_hp);
+ assert(is_compound);
+ ret = ret && is_mv_valid(&mv[0].as_mv);
+ mv[1].as_int = nearest_mv[1].as_int;
+ break;
+ }
+ case NEAREST_NEWMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx = av1_nmv_ctx(xd->ref_mv_count[rf_type],
+ xd->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx);
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+#else
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ mv[0].as_int = nearest_mv[0].as_int;
+ read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, mv_counts, allow_hp);
+ assert(is_compound);
+ ret = ret && is_mv_valid(&mv[1].as_mv);
+ break;
+ }
+ case NEAR_NEWMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx = av1_nmv_ctx(xd->ref_mv_count[rf_type],
+ xd->ref_mv_stack[rf_type], 1, mbmi->ref_mv_idx);
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+#else
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ mv[0].as_int = near_mv[0].as_int;
+ read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, mv_counts, allow_hp);
+ assert(is_compound);
+
+ ret = ret && is_mv_valid(&mv[1].as_mv);
+ break;
+ }
+ case NEW_NEARMV: {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_REF_MV
+ int8_t rf_type = av1_ref_frame_type(mbmi->ref_frame);
+ int nmv_ctx = av1_nmv_ctx(xd->ref_mv_count[rf_type],
+ xd->ref_mv_stack[rf_type], 0, mbmi->ref_mv_idx);
+ nmv_context *const nmvc = &ec_ctx->nmvc[nmv_ctx];
+ nmv_context_counts *const mv_counts =
+ counts ? &counts->mv[nmv_ctx] : NULL;
+#else
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ nmv_context_counts *const mv_counts = counts ? &counts->mv : NULL;
+#endif
+ read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, mv_counts, allow_hp);
+ assert(is_compound);
+ ret = ret && is_mv_valid(&mv[0].as_mv);
+ mv[1].as_int = near_mv[1].as_int;
+ break;
+ }
+ case ZERO_ZEROMV: {
+ assert(is_compound);
+#if CONFIG_GLOBAL_MOTION
+ mv[0].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
+ cm->allow_high_precision_mv, bsize,
+ mi_col, mi_row, block)
+ .as_int;
+ mv[1].as_int = gm_get_motion_vector(&cm->global_motion[ref_frame[1]],
+ cm->allow_high_precision_mv, bsize,
+ mi_col, mi_row, block)
+ .as_int;
+#else
+ mv[0].as_int = 0;
+ mv[1].as_int = 0;
+#endif // CONFIG_GLOBAL_MOTION
+ break;
+ }
+#endif // CONFIG_EXT_INTER
+ default: { return 0; }
+ }
+ return ret;
+}
+
+static int read_is_inter_block(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int segment_id, aom_reader *r) {
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME)) {
+ return get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME) != INTRA_FRAME;
+ } else {
+ const int ctx = av1_get_intra_inter_context(xd);
+ const int is_inter = aom_read(r, cm->fc->intra_inter_prob[ctx], ACCT_STR);
+ FRAME_COUNTS *counts = xd->counts;
+ if (counts) ++counts->intra_inter[ctx][is_inter];
+ return is_inter;
+ }
+}
+
+static void fpm_sync(void *const data, int mi_row) {
+ AV1Decoder *const pbi = (AV1Decoder *)data;
+ av1_frameworker_wait(pbi->frame_worker_owner, pbi->common.prev_frame,
+ mi_row << pbi->common.mib_size_log2);
+}
+
+static void read_inter_block_mode_info(AV1Decoder *const pbi,
+ MACROBLOCKD *const xd,
+ MODE_INFO *const mi,
+#if (CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION || CONFIG_EXT_INTER) && \
+ CONFIG_SUPERTX
+ int mi_row, int mi_col, aom_reader *r,
+ int supertx_enabled) {
+#else
+ int mi_row, int mi_col, aom_reader *r) {
+#endif // CONFIG_MOTION_VAR && CONFIG_SUPERTX
+ AV1_COMMON *const cm = &pbi->common;
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const int allow_hp = cm->allow_high_precision_mv;
+ const int unify_bsize = CONFIG_CB4X4;
+ int_mv nearestmv[2], nearmv[2];
+ int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
+ int ref, is_compound;
+ int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
+#if CONFIG_REF_MV && CONFIG_EXT_INTER
+ int16_t compound_inter_mode_ctx[MODE_CTX_REF_FRAMES];
+#endif // CONFIG_REF_MV && CONFIG_EXT_INTER
+ int16_t mode_ctx = 0;
+#if CONFIG_WARPED_MOTION
+ int pts[SAMPLES_ARRAY_SIZE], pts_inref[SAMPLES_ARRAY_SIZE];
+#endif // CONFIG_WARPED_MOTION
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *ec_ctx = cm->fc;
+#endif
+
+#if CONFIG_PALETTE
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+#endif // CONFIG_PALETTE
+
+ memset(ref_mvs, 0, sizeof(ref_mvs));
+
+ read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame);
+ is_compound = has_second_ref(mbmi);
+
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
+
+ av1_find_mv_refs(cm, xd, mi, frame,
+#if CONFIG_REF_MV
+ &xd->ref_mv_count[frame], xd->ref_mv_stack[frame],
+#if CONFIG_EXT_INTER
+ compound_inter_mode_ctx,
+#endif // CONFIG_EXT_INTER
+#endif
+ ref_mvs[frame], mi_row, mi_col, fpm_sync, (void *)pbi,
+ inter_mode_ctx);
+ }
+
+#if CONFIG_REF_MV
+ if (is_compound) {
+ MV_REFERENCE_FRAME ref_frame = av1_ref_frame_type(mbmi->ref_frame);
+ av1_find_mv_refs(cm, xd, mi, ref_frame, &xd->ref_mv_count[ref_frame],
+ xd->ref_mv_stack[ref_frame],
+#if CONFIG_EXT_INTER
+ compound_inter_mode_ctx,
+#endif // CONFIG_EXT_INTER
+ ref_mvs[ref_frame], mi_row, mi_col, fpm_sync, (void *)pbi,
+ inter_mode_ctx);
+
+ if (xd->ref_mv_count[ref_frame] < 2) {
+ MV_REFERENCE_FRAME rf[2];
+ int_mv zeromv[2];
+ av1_set_ref_frame(rf, ref_frame);
+#if CONFIG_GLOBAL_MOTION
+ zeromv[0].as_int = gm_get_motion_vector(&cm->global_motion[rf[0]],
+ cm->allow_high_precision_mv,
+ bsize, mi_col, mi_row, 0)
+ .as_int;
+ zeromv[1].as_int = (rf[1] != NONE_FRAME)
+ ? gm_get_motion_vector(&cm->global_motion[rf[1]],
+ cm->allow_high_precision_mv,
+ bsize, mi_col, mi_row, 0)
+ .as_int
+ : 0;
+#else
+ zeromv[0].as_int = zeromv[1].as_int = 0;
+#endif
+ for (ref = 0; ref < 2; ++ref) {
+ if (rf[ref] == NONE_FRAME) continue;
+ lower_mv_precision(&ref_mvs[rf[ref]][0].as_mv, allow_hp);
+ lower_mv_precision(&ref_mvs[rf[ref]][1].as_mv, allow_hp);
+ if (ref_mvs[rf[ref]][0].as_int != zeromv[ref].as_int ||
+ ref_mvs[rf[ref]][1].as_int != zeromv[ref].as_int)
+ inter_mode_ctx[ref_frame] &= ~(1 << ALL_ZERO_FLAG_OFFSET);
+ }
+ }
+ }
+
+#if CONFIG_EXT_INTER
+ if (is_compound)
+ mode_ctx = compound_inter_mode_ctx[mbmi->ref_frame[0]];
+ else
+#endif // CONFIG_EXT_INTER
+ mode_ctx =
+ av1_mode_context_analyzer(inter_mode_ctx, mbmi->ref_frame, bsize, -1);
+ mbmi->ref_mv_idx = 0;
+#else
+ mode_ctx = inter_mode_ctx[mbmi->ref_frame[0]];
+#endif
+
+ if (segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) {
+ mbmi->mode = ZEROMV;
+ if (bsize < BLOCK_8X8 && !unify_bsize) {
+ aom_internal_error(xd->error_info, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid usage of segement feature on small blocks");
+ return;
+ }
+ } else {
+ if (bsize >= BLOCK_8X8 || unify_bsize) {
+#if CONFIG_EXT_INTER
+ if (is_compound)
+ mbmi->mode = read_inter_compound_mode(cm, xd, r, mode_ctx);
+ else
+#endif // CONFIG_EXT_INTER
+ mbmi->mode = read_inter_mode(ec_ctx, xd, r, mode_ctx);
+#if CONFIG_REF_MV
+#if CONFIG_EXT_INTER
+ if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV ||
+ have_nearmv_in_inter_mode(mbmi->mode))
+#else
+ if (mbmi->mode == NEARMV || mbmi->mode == NEWMV)
+#endif
+ read_drl_idx(cm, xd, mbmi, r);
+#endif
+ }
+ }
+
+#if CONFIG_EXT_INTER
+ if ((bsize < BLOCK_8X8 && unify_bsize) ||
+ (mbmi->mode != ZEROMV && mbmi->mode != ZERO_ZEROMV)) {
+#else
+ if ((bsize < BLOCK_8X8 && !unify_bsize) || mbmi->mode != ZEROMV) {
+#endif // CONFIG_EXT_INTER
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ av1_find_best_ref_mvs(allow_hp, ref_mvs[mbmi->ref_frame[ref]],
+ &nearestmv[ref], &nearmv[ref]);
+ }
+ }
+
+#if CONFIG_REF_MV
+ if (mbmi->ref_mv_idx > 0) {
+ int_mv cur_mv =
+ xd->ref_mv_stack[mbmi->ref_frame[0]][1 + mbmi->ref_mv_idx].this_mv;
+ nearmv[0] = cur_mv;
+ }
+
+#if CONFIG_EXT_INTER
+ if (is_compound && (bsize >= BLOCK_8X8 || unify_bsize) &&
+ mbmi->mode != ZERO_ZEROMV) {
+#else
+ if (is_compound && (bsize >= BLOCK_8X8 || unify_bsize) &&
+ mbmi->mode != NEWMV && mbmi->mode != ZEROMV) {
+#endif // CONFIG_EXT_INTER
+ uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
+
+#if CONFIG_EXT_INTER
+ if (xd->ref_mv_count[ref_frame_type] > 0) {
+#else
+ if (xd->ref_mv_count[ref_frame_type] == 1 && mbmi->mode == NEARESTMV) {
+#endif // CONFIG_EXT_INTER
+#if CONFIG_EXT_INTER
+ if (mbmi->mode == NEAREST_NEARESTMV) {
+#endif // CONFIG_EXT_INTER
+ nearestmv[0] = xd->ref_mv_stack[ref_frame_type][0].this_mv;
+ nearestmv[1] = xd->ref_mv_stack[ref_frame_type][0].comp_mv;
+ lower_mv_precision(&nearestmv[0].as_mv, allow_hp);
+ lower_mv_precision(&nearestmv[1].as_mv, allow_hp);
+#if CONFIG_EXT_INTER
+ } else if (mbmi->mode == NEAREST_NEWMV || mbmi->mode == NEAREST_NEARMV) {
+ nearestmv[0] = xd->ref_mv_stack[ref_frame_type][0].this_mv;
+ lower_mv_precision(&nearestmv[0].as_mv, allow_hp);
+ } else if (mbmi->mode == NEW_NEARESTMV || mbmi->mode == NEAR_NEARESTMV) {
+ nearestmv[1] = xd->ref_mv_stack[ref_frame_type][0].comp_mv;
+ lower_mv_precision(&nearestmv[1].as_mv, allow_hp);
+ }
+#endif // CONFIG_EXT_INTER
+ }
+
+#if CONFIG_EXT_INTER
+ if (xd->ref_mv_count[ref_frame_type] > 1) {
+ int ref_mv_idx = 1 + mbmi->ref_mv_idx;
+ if (compound_ref0_mode(mbmi->mode) == NEARMV) {
+ nearmv[0] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].this_mv;
+ lower_mv_precision(&nearmv[0].as_mv, allow_hp);
+ }
+
+ if (compound_ref1_mode(mbmi->mode) == NEARMV) {
+ nearmv[1] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].comp_mv;
+ lower_mv_precision(&nearmv[1].as_mv, allow_hp);
+ }
+ }
+#else
+ if (xd->ref_mv_count[ref_frame_type] > 1) {
+ int ref_mv_idx = 1 + mbmi->ref_mv_idx;
+ nearestmv[0] = xd->ref_mv_stack[ref_frame_type][0].this_mv;
+ nearestmv[1] = xd->ref_mv_stack[ref_frame_type][0].comp_mv;
+ nearmv[0] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].this_mv;
+ nearmv[1] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].comp_mv;
+ }
+#endif // CONFIG_EXT_INTER
+ }
+#endif
+
+#if !CONFIG_DUAL_FILTER && !CONFIG_WARPED_MOTION && !CONFIG_GLOBAL_MOTION
+ read_mb_interp_filter(cm, xd, mbmi, r);
+#endif // !CONFIG_DUAL_FILTER && !CONFIG_WARPED_MOTION
+
+ if (bsize < BLOCK_8X8 && !unify_bsize) {
+ const int num_4x4_w = 1 << xd->bmode_blocks_wl;
+ const int num_4x4_h = 1 << xd->bmode_blocks_hl;
+ int idx, idy;
+ PREDICTION_MODE b_mode;
+ int_mv nearest_sub8x8[2], near_sub8x8[2];
+#if CONFIG_EXT_INTER
+ int_mv ref_mv[2][2];
+#endif // CONFIG_EXT_INTER
+ for (idy = 0; idy < 2; idy += num_4x4_h) {
+ for (idx = 0; idx < 2; idx += num_4x4_w) {
+ int_mv block[2];
+ const int j = idy * 2 + idx;
+ int_mv ref_mv_s8[2];
+#if CONFIG_REF_MV
+#if CONFIG_EXT_INTER
+ if (!is_compound)
+#endif // CONFIG_EXT_INTER
+ mode_ctx = av1_mode_context_analyzer(inter_mode_ctx, mbmi->ref_frame,
+ bsize, j);
+#endif
+#if CONFIG_EXT_INTER
+ if (is_compound)
+ b_mode = read_inter_compound_mode(cm, xd, r, mode_ctx);
+ else
+#endif // CONFIG_EXT_INTER
+ b_mode = read_inter_mode(ec_ctx, xd, r, mode_ctx);
+
+#if CONFIG_EXT_INTER
+ if (b_mode != ZEROMV && b_mode != ZERO_ZEROMV) {
+#else
+ if (b_mode != ZEROMV) {
+#endif // CONFIG_EXT_INTER
+#if CONFIG_REF_MV
+ CANDIDATE_MV ref_mv_stack[2][MAX_REF_MV_STACK_SIZE];
+ uint8_t ref_mv_count[2];
+#endif
+ for (ref = 0; ref < 1 + is_compound; ++ref)
+#if CONFIG_EXT_INTER
+ {
+ int_mv mv_ref_list[MAX_MV_REF_CANDIDATES];
+ av1_update_mv_context(cm, xd, mi, mbmi->ref_frame[ref], mv_ref_list,
+ j, mi_row, mi_col, NULL);
+#endif // CONFIG_EXT_INTER
+ av1_append_sub8x8_mvs_for_idx(cm, xd, j, ref, mi_row, mi_col,
+#if CONFIG_REF_MV
+ ref_mv_stack[ref], &ref_mv_count[ref],
+#endif
+#if CONFIG_EXT_INTER
+ mv_ref_list,
+#endif // CONFIG_EXT_INTER
+ &nearest_sub8x8[ref],
+ &near_sub8x8[ref]);
+#if CONFIG_EXT_INTER
+ if (have_newmv_in_inter_mode(b_mode)) {
+ mv_ref_list[0].as_int = nearest_sub8x8[ref].as_int;
+ mv_ref_list[1].as_int = near_sub8x8[ref].as_int;
+ av1_find_best_ref_mvs(allow_hp, mv_ref_list, &ref_mv[0][ref],
+ &ref_mv[1][ref]);
+ }
+ }
+#endif // CONFIG_EXT_INTER
+ }
+
+ for (ref = 0; ref < 1 + is_compound && b_mode != ZEROMV; ++ref) {
+#if CONFIG_REF_MV
+ ref_mv_s8[ref] = nearest_sub8x8[ref];
+ lower_mv_precision(&ref_mv_s8[ref].as_mv, allow_hp);
+#else
+ ref_mv_s8[ref] = nearestmv[ref];
+#endif
+ }
+#if CONFIG_EXT_INTER
+ (void)ref_mv_s8;
+#endif
+
+ if (!assign_mv(cm, xd, b_mode, mbmi->ref_frame, j, block,
+#if CONFIG_EXT_INTER
+ ref_mv[0],
+#else // !CONFIG_EXT_INTER
+ ref_mv_s8,
+#endif // CONFIG_EXT_INTER
+ nearest_sub8x8, near_sub8x8, mi_row, mi_col, is_compound,
+ allow_hp, r)) {
+ aom_merge_corrupted_flag(&xd->corrupted, 1);
+ break;
+ };
+
+ mi->bmi[j].as_mv[0].as_int = block[0].as_int;
+ mi->bmi[j].as_mode = b_mode;
+ if (is_compound) mi->bmi[j].as_mv[1].as_int = block[1].as_int;
+
+ if (num_4x4_h == 2) mi->bmi[j + 2] = mi->bmi[j];
+ if (num_4x4_w == 2) mi->bmi[j + 1] = mi->bmi[j];
+ }
+ }
+
+#if CONFIG_REF_MV
+ mbmi->pred_mv[0].as_int = mi->bmi[3].pred_mv[0].as_int;
+ mbmi->pred_mv[1].as_int = mi->bmi[3].pred_mv[1].as_int;
+#endif
+ mi->mbmi.mode = b_mode;
+
+ mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int;
+ mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int;
+ } else {
+ int_mv ref_mv[2];
+ ref_mv[0] = nearestmv[0];
+ ref_mv[1] = nearestmv[1];
+
+#if CONFIG_EXT_INTER
+ if (is_compound) {
+#if CONFIG_REF_MV
+ int ref_mv_idx = mbmi->ref_mv_idx;
+ // Special case: NEAR_NEWMV and NEW_NEARMV modes use
+ // 1 + mbmi->ref_mv_idx (like NEARMV) instead of
+ // mbmi->ref_mv_idx (like NEWMV)
+ if (mbmi->mode == NEAR_NEWMV || mbmi->mode == NEW_NEARMV)
+ ref_mv_idx = 1 + mbmi->ref_mv_idx;
+#endif
+
+ if (compound_ref0_mode(mbmi->mode) == NEWMV) {
+#if CONFIG_REF_MV
+ uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
+ if (xd->ref_mv_count[ref_frame_type] > 1) {
+ ref_mv[0] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].this_mv;
+ clamp_mv_ref(&ref_mv[0].as_mv, xd->n8_w << MI_SIZE_LOG2,
+ xd->n8_h << MI_SIZE_LOG2, xd);
+ }
+#endif
+ nearestmv[0] = ref_mv[0];
+ }
+ if (compound_ref1_mode(mbmi->mode) == NEWMV) {
+#if CONFIG_REF_MV
+ uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
+ if (xd->ref_mv_count[ref_frame_type] > 1) {
+ ref_mv[1] = xd->ref_mv_stack[ref_frame_type][ref_mv_idx].comp_mv;
+ clamp_mv_ref(&ref_mv[1].as_mv, xd->n8_w << MI_SIZE_LOG2,
+ xd->n8_h << MI_SIZE_LOG2, xd);
+ }
+#endif
+ nearestmv[1] = ref_mv[1];
+ }
+ } else {
+#endif // CONFIG_EXT_INTER
+ if (mbmi->mode == NEWMV) {
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+#if CONFIG_REF_MV
+ uint8_t ref_frame_type = av1_ref_frame_type(mbmi->ref_frame);
+ if (xd->ref_mv_count[ref_frame_type] > 1) {
+ ref_mv[ref] =
+ (ref == 0)
+ ? xd->ref_mv_stack[ref_frame_type][mbmi->ref_mv_idx].this_mv
+ : xd->ref_mv_stack[ref_frame_type][mbmi->ref_mv_idx]
+ .comp_mv;
+ clamp_mv_ref(&ref_mv[ref].as_mv, xd->n8_w << MI_SIZE_LOG2,
+ xd->n8_h << MI_SIZE_LOG2, xd);
+ }
+#endif
+ nearestmv[ref] = ref_mv[ref];
+ }
+ }
+#if CONFIG_EXT_INTER
+ }
+#endif // CONFIG_EXT_INTER
+
+ int mv_corrupted_flag =
+ !assign_mv(cm, xd, mbmi->mode, mbmi->ref_frame, 0, mbmi->mv, ref_mv,
+ nearestmv, nearmv, mi_row, mi_col, is_compound, allow_hp, r);
+ aom_merge_corrupted_flag(&xd->corrupted, mv_corrupted_flag);
+ }
+
+#if CONFIG_EXT_INTER
+ mbmi->use_wedge_interintra = 0;
+ if (cm->reference_mode != COMPOUND_REFERENCE &&
+#if CONFIG_SUPERTX
+ !supertx_enabled &&
+#endif
+ is_interintra_allowed(mbmi)) {
+ const int bsize_group = size_group_lookup[bsize];
+ const int interintra =
+ aom_read(r, cm->fc->interintra_prob[bsize_group], ACCT_STR);
+ if (xd->counts) xd->counts->interintra[bsize_group][interintra]++;
+ assert(mbmi->ref_frame[1] == NONE_FRAME);
+ if (interintra) {
+ const INTERINTRA_MODE interintra_mode =
+ read_interintra_mode(cm, xd, r, bsize_group);
+ mbmi->ref_frame[1] = INTRA_FRAME;
+ mbmi->interintra_mode = interintra_mode;
+#if CONFIG_EXT_INTRA
+ mbmi->angle_delta[0] = 0;
+ mbmi->angle_delta[1] = 0;
+#if CONFIG_INTRA_INTERP
+ mbmi->intra_filter = INTRA_FILTER_LINEAR;
+#endif // CONFIG_INTRA_INTERP
+#endif // CONFIG_EXT_INTRA
+#if CONFIG_FILTER_INTRA
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[0] = 0;
+ mbmi->filter_intra_mode_info.use_filter_intra_mode[1] = 0;
+#endif // CONFIG_FILTER_INTRA
+ if (is_interintra_wedge_used(bsize)) {
+ mbmi->use_wedge_interintra =
+ aom_read(r, cm->fc->wedge_interintra_prob[bsize], ACCT_STR);
+ if (xd->counts)
+ xd->counts->wedge_interintra[bsize][mbmi->use_wedge_interintra]++;
+ if (mbmi->use_wedge_interintra) {
+ mbmi->interintra_wedge_index =
+ aom_read_literal(r, get_wedge_bits_lookup(bsize), ACCT_STR);
+ mbmi->interintra_wedge_sign = 0;
+ }
+ }
+ }
+ }
+#endif // CONFIG_EXT_INTER
+
+#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ mbmi->motion_mode = SIMPLE_TRANSLATION;
+#if CONFIG_WARPED_MOTION
+ if (mbmi->sb_type >= BLOCK_8X8 && !has_second_ref(mbmi))
+ mbmi->num_proj_ref[0] = findSamples(cm, xd, mi_row, mi_col, pts, pts_inref);
+#endif // CONFIG_WARPED_MOTION
+#if CONFIG_MOTION_VAR
+ av1_count_overlappable_neighbors(cm, xd, mi_row, mi_col);
+#endif
+
+#if CONFIG_SUPERTX
+ if (!supertx_enabled) {
+#endif // CONFIG_SUPERTX
+#if CONFIG_EXT_INTER
+ if (mbmi->ref_frame[1] != INTRA_FRAME)
+#endif // CONFIG_EXT_INTER
+ mbmi->motion_mode = read_motion_mode(cm, xd, mi, r);
+#if CONFIG_WARPED_MOTION
+ if (mbmi->motion_mode == WARPED_CAUSAL) {
+ mbmi->wm_params[0].wmtype = DEFAULT_WMTYPE;
+ if (find_projection(mbmi->num_proj_ref[0], pts, pts_inref, bsize,
+ mbmi->mv[0].as_mv.row, mbmi->mv[0].as_mv.col,
+ &mbmi->wm_params[0], mi_row, mi_col)) {
+ assert(0 && "Invalid Warped Model.");
+ }
+ }
+#endif // CONFIG_WARPED_MOTION
+#if CONFIG_SUPERTX
+ }
+#endif // CONFIG_SUPERTX
+#endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+
+#if CONFIG_EXT_INTER
+ mbmi->interinter_compound_type = COMPOUND_AVERAGE;
+ if (cm->reference_mode != SINGLE_REFERENCE &&
+ is_inter_compound_mode(mbmi->mode)
+#if CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ && mbmi->motion_mode == SIMPLE_TRANSLATION
+#endif // CONFIG_MOTION_VAR || CONFIG_WARPED_MOTION
+ ) {
+ if (is_any_masked_compound_used(bsize)) {
+#if CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
+ mbmi->interinter_compound_type =
+ aom_read_tree(r, av1_compound_type_tree,
+ cm->fc->compound_type_prob[bsize], ACCT_STR);
+#endif // CONFIG_COMPOUND_SEGMENT || CONFIG_WEDGE
+#if CONFIG_WEDGE
+ if (mbmi->interinter_compound_type == COMPOUND_WEDGE) {
+ mbmi->wedge_index =
+ aom_read_literal(r, get_wedge_bits_lookup(bsize), ACCT_STR);
+ mbmi->wedge_sign = aom_read_bit(r, ACCT_STR);
+ }
+#endif // CONFIG_WEDGE
+#if CONFIG_COMPOUND_SEGMENT
+ if (mbmi->interinter_compound_type == COMPOUND_SEG) {
+ mbmi->mask_type = aom_read_literal(r, MAX_SEG_MASK_BITS, ACCT_STR);
+ }
+#endif // CONFIG_COMPOUND_SEGMENT
+ } else {
+ mbmi->interinter_compound_type = COMPOUND_AVERAGE;
+ }
+ if (xd->counts)
+ xd->counts->compound_interinter[bsize][mbmi->interinter_compound_type]++;
+ }
+#endif // CONFIG_EXT_INTER
+
+#if CONFIG_DUAL_FILTER || CONFIG_WARPED_MOTION || CONFIG_GLOBAL_MOTION
+ read_mb_interp_filter(cm, xd, mbmi, r);
+#endif // CONFIG_DUAL_FILTER || CONFIG_WARPED_MOTION
+}
+
+static void read_inter_frame_mode_info(AV1Decoder *const pbi,
+ MACROBLOCKD *const xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif // CONFIG_SUPERTX
+ int mi_row, int mi_col, aom_reader *r) {
+ AV1_COMMON *const cm = &pbi->common;
+ MODE_INFO *const mi = xd->mi[0];
+ MB_MODE_INFO *const mbmi = &mi->mbmi;
+ int inter_block = 1;
+#if CONFIG_VAR_TX
+ BLOCK_SIZE bsize = mbmi->sb_type;
+#endif // CONFIG_VAR_TX
+
+ mbmi->mv[0].as_int = 0;
+ mbmi->mv[1].as_int = 0;
+ mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, r);
+#if CONFIG_SUPERTX
+ if (!supertx_enabled)
+#endif // CONFIG_SUPERTX
+ mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
+
+#if CONFIG_DELTA_Q
+ if (cm->delta_q_present_flag) {
+ xd->current_qindex =
+ xd->prev_qindex +
+ read_delta_qindex(cm, xd, r, mbmi, mi_col, mi_row) * cm->delta_q_res;
+ /* Normative: Clamp to [1,MAXQ] to not interfere with lossless mode */
+ xd->current_qindex = clamp(xd->current_qindex, 1, MAXQ);
+ xd->prev_qindex = xd->current_qindex;
+#if CONFIG_EXT_DELTA_Q
+ if (cm->delta_lf_present_flag) {
+ mbmi->current_delta_lf_from_base = xd->current_delta_lf_from_base =
+ xd->prev_delta_lf_from_base +
+ read_delta_lflevel(cm, xd, r, mbmi, mi_col, mi_row) *
+ cm->delta_lf_res;
+ xd->prev_delta_lf_from_base = xd->current_delta_lf_from_base;
+ }
+#endif
+ }
+#endif
+
+#if CONFIG_SUPERTX
+ if (!supertx_enabled) {
+#endif // CONFIG_SUPERTX
+ inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r);
+
+#if CONFIG_VAR_TX
+ xd->above_txfm_context = cm->above_txfm_context + mi_col;
+ xd->left_txfm_context =
+ xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
+
+ if (cm->tx_mode == TX_MODE_SELECT &&
+#if CONFIG_CB4X4
+ bsize > BLOCK_4X4 &&
+#else
+ bsize >= BLOCK_8X8 &&
+#endif
+ !mbmi->skip && inter_block) {
+ const TX_SIZE max_tx_size = max_txsize_rect_lookup[bsize];
+ const int bh = tx_size_high_unit[max_tx_size];
+ const int bw = tx_size_wide_unit[max_tx_size];
+ const int width = block_size_wide[bsize] >> tx_size_wide_log2[0];
+ const int height = block_size_high[bsize] >> tx_size_wide_log2[0];
+ int idx, idy;
+
+ mbmi->min_tx_size = TX_SIZES_ALL;
+ for (idy = 0; idy < height; idy += bh)
+ for (idx = 0; idx < width; idx += bw)
+ read_tx_size_vartx(cm, xd, mbmi, xd->counts, max_tx_size,
+ height != width, idy, idx, r);
+ } else {
+ mbmi->tx_size = read_tx_size(cm, xd, inter_block, !mbmi->skip, r);
+
+ if (inter_block) {
+ const int width = block_size_wide[bsize] >> tx_size_wide_log2[0];
+ const int height = block_size_high[bsize] >> tx_size_high_log2[0];
+ int idx, idy;
+ for (idy = 0; idy < height; ++idy)
+ for (idx = 0; idx < width; ++idx)
+ mbmi->inter_tx_size[idy >> 1][idx >> 1] = mbmi->tx_size;
+ }
+ mbmi->min_tx_size = get_min_tx_size(mbmi->tx_size);
+ set_txfm_ctxs(mbmi->tx_size, xd->n8_w, xd->n8_h, mbmi->skip, xd);
+ }
+#else
+ mbmi->tx_size = read_tx_size(cm, xd, inter_block, !mbmi->skip, r);
+#endif // CONFIG_VAR_TX
+#if CONFIG_SUPERTX
+ }
+#if CONFIG_VAR_TX
+ else if (inter_block) {
+ const int width = num_4x4_blocks_wide_lookup[bsize];
+ const int height = num_4x4_blocks_high_lookup[bsize];
+ int idx, idy;
+ xd->mi[0]->mbmi.tx_size = xd->supertx_size;
+ for (idy = 0; idy < height; ++idy)
+ for (idx = 0; idx < width; ++idx)
+ xd->mi[0]->mbmi.inter_tx_size[idy >> 1][idx >> 1] = xd->supertx_size;
+ }
+#endif // CONFIG_VAR_TX
+#endif // CONFIG_SUPERTX
+
+ if (inter_block)
+ read_inter_block_mode_info(pbi, xd,
+#if (CONFIG_MOTION_VAR || CONFIG_EXT_INTER || CONFIG_WARPED_MOTION) && \
+ CONFIG_SUPERTX
+
+ mi, mi_row, mi_col, r, supertx_enabled);
+#else
+ mi, mi_row, mi_col, r);
+#endif // CONFIG_MOTION_VAR && CONFIG_SUPERTX
+ else
+ read_intra_block_mode_info(cm, mi_row, mi_col, xd, mi, r);
+
+#if !CONFIG_TXK_SEL
+ av1_read_tx_type(cm, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif
+ r);
+#endif // !CONFIG_TXK_SEL
+}
+
+void av1_read_mode_info(AV1Decoder *const pbi, MACROBLOCKD *xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif // CONFIG_SUPERTX
+ int mi_row, int mi_col, aom_reader *r, int x_mis,
+ int y_mis) {
+ AV1_COMMON *const cm = &pbi->common;
+ MODE_INFO *const mi = xd->mi[0];
+ MV_REF *frame_mvs = cm->cur_frame->mvs + mi_row * cm->mi_cols + mi_col;
+ int w, h;
+
+#if CONFIG_INTRABC
+ mi->mbmi.use_intrabc = 0;
+#endif // CONFIG_INTRABC
+
+ if (frame_is_intra_only(cm)) {
+ read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r);
+#if CONFIG_REF_MV
+ for (h = 0; h < y_mis; ++h) {
+ MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols;
+ for (w = 0; w < x_mis; ++w) {
+ MV_REF *const mv = frame_mv + w;
+ mv->ref_frame[0] = NONE_FRAME;
+ mv->ref_frame[1] = NONE_FRAME;
+ }
+ }
+#endif
+ } else {
+ read_inter_frame_mode_info(pbi, xd,
+#if CONFIG_SUPERTX
+ supertx_enabled,
+#endif // CONFIG_SUPERTX
+ mi_row, mi_col, r);
+ for (h = 0; h < y_mis; ++h) {
+ MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols;
+ for (w = 0; w < x_mis; ++w) {
+ MV_REF *const mv = frame_mv + w;
+ mv->ref_frame[0] = mi->mbmi.ref_frame[0];
+ mv->ref_frame[1] = mi->mbmi.ref_frame[1];
+ mv->mv[0].as_int = mi->mbmi.mv[0].as_int;
+ mv->mv[1].as_int = mi->mbmi.mv[1].as_int;
+#if CONFIG_REF_MV
+ mv->pred_mv[0].as_int = mi->mbmi.pred_mv[0].as_int;
+ mv->pred_mv[1].as_int = mi->mbmi.pred_mv[1].as_int;
+#endif
+ }
+ }
+ }
+}
diff --git a/third_party/aom/av1/decoder/decodemv.h b/third_party/aom/av1/decoder/decodemv.h
new file mode 100644
index 000000000..ceaee1d6b
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodemv.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DECODEMV_H_
+#define AV1_DECODER_DECODEMV_H_
+
+#include "aom_dsp/bitreader.h"
+
+#include "av1/decoder/decoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void av1_read_mode_info(AV1Decoder *const pbi, MACROBLOCKD *xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif
+
+ int mi_row, int mi_col, aom_reader *r, int x_mis,
+ int y_mis);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+void av1_read_tx_type(const AV1_COMMON *const cm, MACROBLOCKD *xd,
+#if CONFIG_SUPERTX
+ int supertx_enabled,
+#endif
+#if CONFIG_TXK_SEL
+ int block, int plane,
+#endif
+ aom_reader *r);
+
+#endif // AV1_DECODER_DECODEMV_H_
diff --git a/third_party/aom/av1/decoder/decoder.c b/third_party/aom/av1/decoder/decoder.c
new file mode 100644
index 000000000..1bd91086e
--- /dev/null
+++ b/third_party/aom/av1/decoder/decoder.c
@@ -0,0 +1,583 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include "./av1_rtcd.h"
+#include "./aom_dsp_rtcd.h"
+#include "./aom_scale_rtcd.h"
+
+#include "aom_mem/aom_mem.h"
+#include "aom_ports/system_state.h"
+#include "aom_ports/aom_once.h"
+#include "aom_ports/aom_timer.h"
+#include "aom_scale/aom_scale.h"
+#include "aom_util/aom_thread.h"
+
+#include "av1/common/alloccommon.h"
+#include "av1/common/av1_loopfilter.h"
+#include "av1/common/onyxc_int.h"
+#include "av1/common/quant_common.h"
+#include "av1/common/reconinter.h"
+#include "av1/common/reconintra.h"
+
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/decoder.h"
+
+#if !CONFIG_PVQ
+#include "av1/decoder/detokenize.h"
+#endif
+
+static void initialize_dec(void) {
+ static volatile int init_done = 0;
+
+ if (!init_done) {
+ av1_rtcd();
+ aom_dsp_rtcd();
+ aom_scale_rtcd();
+ av1_init_intra_predictors();
+#if CONFIG_EXT_INTER
+ av1_init_wedge_masks();
+#endif // CONFIG_EXT_INTER
+ init_done = 1;
+#if CONFIG_EC_MULTISYMBOL
+ av1_indices_from_tree(av1_intra_mode_ind, av1_intra_mode_inv,
+ av1_intra_mode_tree);
+ av1_indices_from_tree(av1_switchable_interp_ind, av1_switchable_interp_inv,
+ av1_switchable_interp_tree);
+#if CONFIG_EXT_TX
+ int s;
+ for (s = 1; s < EXT_TX_SETS_INTRA; ++s)
+ av1_indices_from_tree(av1_ext_tx_intra_ind[s], av1_ext_tx_intra_inv[s],
+ av1_ext_tx_intra_tree[s]);
+ for (s = 1; s < EXT_TX_SETS_INTER; ++s)
+ av1_indices_from_tree(av1_ext_tx_inter_ind[s], av1_ext_tx_inter_inv[s],
+ av1_ext_tx_inter_tree[s]);
+#else
+ av1_indices_from_tree(av1_ext_tx_ind, av1_ext_tx_inv, av1_ext_tx_tree);
+#endif
+ av1_indices_from_tree(av1_inter_mode_ind, av1_inter_mode_inv,
+ av1_inter_mode_tree);
+#endif
+ }
+}
+
+static void av1_dec_setup_mi(AV1_COMMON *cm) {
+ cm->mi = cm->mip + cm->mi_stride + 1;
+ cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
+ memset(cm->mi_grid_base, 0,
+ cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mi_grid_base));
+}
+
+static int av1_dec_alloc_mi(AV1_COMMON *cm, int mi_size) {
+ cm->mip = aom_calloc(mi_size, sizeof(*cm->mip));
+ if (!cm->mip) return 1;
+ cm->mi_alloc_size = mi_size;
+ cm->mi_grid_base = (MODE_INFO **)aom_calloc(mi_size, sizeof(MODE_INFO *));
+ if (!cm->mi_grid_base) return 1;
+ return 0;
+}
+
+static void av1_dec_free_mi(AV1_COMMON *cm) {
+ aom_free(cm->mip);
+ cm->mip = NULL;
+ aom_free(cm->mi_grid_base);
+ cm->mi_grid_base = NULL;
+}
+
+AV1Decoder *av1_decoder_create(BufferPool *const pool) {
+ AV1Decoder *volatile const pbi = aom_memalign(32, sizeof(*pbi));
+ AV1_COMMON *volatile const cm = pbi ? &pbi->common : NULL;
+
+ if (!cm) return NULL;
+
+ av1_zero(*pbi);
+
+ if (setjmp(cm->error.jmp)) {
+ cm->error.setjmp = 0;
+ av1_decoder_remove(pbi);
+ return NULL;
+ }
+
+ cm->error.setjmp = 1;
+
+ CHECK_MEM_ERROR(cm, cm->fc,
+ (FRAME_CONTEXT *)aom_memalign(32, sizeof(*cm->fc)));
+ CHECK_MEM_ERROR(cm, cm->frame_contexts,
+ (FRAME_CONTEXT *)aom_memalign(
+ 32, FRAME_CONTEXTS * sizeof(*cm->frame_contexts)));
+ memset(cm->fc, 0, sizeof(*cm->fc));
+ memset(cm->frame_contexts, 0, FRAME_CONTEXTS * sizeof(*cm->frame_contexts));
+
+ pbi->need_resync = 1;
+ once(initialize_dec);
+
+ // Initialize the references to not point to any frame buffers.
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ memset(&cm->next_ref_frame_map, -1, sizeof(cm->next_ref_frame_map));
+
+ cm->current_video_frame = 0;
+ pbi->ready_for_new_data = 1;
+ pbi->common.buffer_pool = pool;
+
+ cm->bit_depth = AOM_BITS_8;
+ cm->dequant_bit_depth = AOM_BITS_8;
+
+ cm->alloc_mi = av1_dec_alloc_mi;
+ cm->free_mi = av1_dec_free_mi;
+ cm->setup_mi = av1_dec_setup_mi;
+
+ av1_loop_filter_init(cm);
+
+#if CONFIG_AOM_QM
+ aom_qm_init(cm);
+#endif
+#if CONFIG_LOOP_RESTORATION
+ av1_loop_restoration_precal();
+#endif // CONFIG_LOOP_RESTORATION
+#if CONFIG_ACCOUNTING
+ pbi->acct_enabled = 1;
+ aom_accounting_init(&pbi->accounting);
+#endif
+
+ cm->error.setjmp = 0;
+
+ aom_get_worker_interface()->init(&pbi->lf_worker);
+
+ return pbi;
+}
+
+void av1_decoder_remove(AV1Decoder *pbi) {
+ int i;
+
+ if (!pbi) return;
+
+ aom_get_worker_interface()->end(&pbi->lf_worker);
+ aom_free(pbi->lf_worker.data1);
+ aom_free(pbi->tile_data);
+ for (i = 0; i < pbi->num_tile_workers; ++i) {
+ AVxWorker *const worker = &pbi->tile_workers[i];
+ aom_get_worker_interface()->end(worker);
+ }
+ aom_free(pbi->tile_worker_data);
+ aom_free(pbi->tile_worker_info);
+ aom_free(pbi->tile_workers);
+
+ if (pbi->num_tile_workers > 0) {
+ av1_loop_filter_dealloc(&pbi->lf_row_sync);
+ }
+
+#if CONFIG_ACCOUNTING
+ aom_accounting_clear(&pbi->accounting);
+#endif
+
+ aom_free(pbi);
+}
+
+static int equal_dimensions(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ return a->y_height == b->y_height && a->y_width == b->y_width &&
+ a->uv_height == b->uv_height && a->uv_width == b->uv_width;
+}
+
+aom_codec_err_t av1_copy_reference_dec(AV1Decoder *pbi,
+ AOM_REFFRAME ref_frame_flag,
+ YV12_BUFFER_CONFIG *sd) {
+ AV1_COMMON *cm = &pbi->common;
+
+ /* TODO(jkoleszar): The decoder doesn't have any real knowledge of what the
+ * encoder is using the frame buffers for. This is just a stub to keep the
+ * aomenc --test-decode functionality working, and will be replaced in a
+ * later commit that adds AV1-specific controls for this functionality.
+ */
+ if (ref_frame_flag == AOM_LAST_FLAG) {
+ const YV12_BUFFER_CONFIG *const cfg = get_ref_frame(cm, 0);
+ if (cfg == NULL) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "No 'last' reference frame");
+ return AOM_CODEC_ERROR;
+ }
+ if (!equal_dimensions(cfg, sd))
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Incorrect buffer dimensions");
+ else
+ aom_yv12_copy_frame(cfg, sd);
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR, "Invalid reference frame");
+ }
+
+ return cm->error.error_code;
+}
+
+aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm,
+ AOM_REFFRAME ref_frame_flag,
+ YV12_BUFFER_CONFIG *sd) {
+ int idx;
+ YV12_BUFFER_CONFIG *ref_buf = NULL;
+
+ // TODO(jkoleszar): The decoder doesn't have any real knowledge of what the
+ // encoder is using the frame buffers for. This is just a stub to keep the
+ // aomenc --test-decode functionality working, and will be replaced in a
+ // later commit that adds AV1-specific controls for this functionality.
+
+ // (Yunqing) The set_reference control depends on the following setting in
+ // encoder.
+ // cpi->lst_fb_idx = 0;
+ // #if CONFIG_EXT_REFS
+ // cpi->lst2_fb_idx = 1;
+ // cpi->lst3_fb_idx = 2;
+ // cpi->gld_fb_idx = 3;
+ // cpi->bwd_fb_idx = 4;
+ // cpi->alt_fb_idx = 5;
+ // #else // CONFIG_EXT_REFS
+ // cpi->gld_fb_idx = 1;
+ // cpi->alt_fb_idx = 2;
+ // #endif // CONFIG_EXT_REFS
+
+ // TODO(zoeliu): To revisit following code and reconsider what assumption we
+ // may take on the reference frame buffer virtual indexes
+ if (ref_frame_flag == AOM_LAST_FLAG) {
+ idx = cm->ref_frame_map[0];
+#if CONFIG_EXT_REFS
+ } else if (ref_frame_flag == AOM_LAST2_FLAG) {
+ idx = cm->ref_frame_map[1];
+ } else if (ref_frame_flag == AOM_LAST3_FLAG) {
+ idx = cm->ref_frame_map[2];
+ } else if (ref_frame_flag == AOM_GOLD_FLAG) {
+ idx = cm->ref_frame_map[3];
+ } else if (ref_frame_flag == AOM_BWD_FLAG) {
+ idx = cm->ref_frame_map[4];
+ } else if (ref_frame_flag == AOM_ALT_FLAG) {
+ idx = cm->ref_frame_map[5];
+#else
+ } else if (ref_frame_flag == AOM_GOLD_FLAG) {
+ idx = cm->ref_frame_map[1];
+ } else if (ref_frame_flag == AOM_ALT_FLAG) {
+ idx = cm->ref_frame_map[2];
+#endif // CONFIG_EXT_REFS
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR, "Invalid reference frame");
+ return cm->error.error_code;
+ }
+
+ if (idx < 0 || idx >= FRAME_BUFFERS) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Invalid reference frame map");
+ return cm->error.error_code;
+ }
+
+ // Get the destination reference buffer.
+ ref_buf = &cm->buffer_pool->frame_bufs[idx].buf;
+
+ if (!equal_dimensions(ref_buf, sd)) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Incorrect buffer dimensions");
+ } else {
+ // Overwrite the reference frame buffer.
+ aom_yv12_copy_frame(sd, ref_buf);
+ }
+
+ return cm->error.error_code;
+}
+
+/* If any buffer updating is signaled it should be done here. */
+static void swap_frame_buffers(AV1Decoder *pbi) {
+ int ref_index = 0, mask;
+ AV1_COMMON *const cm = &pbi->common;
+ BufferPool *const pool = cm->buffer_pool;
+ RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
+
+ lock_buffer_pool(pool);
+ for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
+ const int old_idx = cm->ref_frame_map[ref_index];
+ // Current thread releases the holding of reference frame.
+ decrease_ref_count(old_idx, frame_bufs, pool);
+
+ // Release the reference frame holding in the reference map for the decoding
+ // of the next frame.
+ if (mask & 1) decrease_ref_count(old_idx, frame_bufs, pool);
+ cm->ref_frame_map[ref_index] = cm->next_ref_frame_map[ref_index];
+ ++ref_index;
+ }
+
+ // Current thread releases the holding of reference frame.
+ for (; ref_index < REF_FRAMES && !cm->show_existing_frame; ++ref_index) {
+ const int old_idx = cm->ref_frame_map[ref_index];
+ decrease_ref_count(old_idx, frame_bufs, pool);
+ cm->ref_frame_map[ref_index] = cm->next_ref_frame_map[ref_index];
+ }
+
+ unlock_buffer_pool(pool);
+ pbi->hold_ref_buf = 0;
+ cm->frame_to_show = get_frame_new_buffer(cm);
+
+ // TODO(zoeliu): To fix the ref frame buffer update for the scenario of
+ // cm->frame_parellel_decode == 1
+ if (!cm->frame_parallel_decode || !cm->show_frame) {
+ lock_buffer_pool(pool);
+ --frame_bufs[cm->new_fb_idx].ref_count;
+ unlock_buffer_pool(pool);
+ }
+
+ // Invalidate these references until the next frame starts.
+ for (ref_index = 0; ref_index < INTER_REFS_PER_FRAME; ref_index++) {
+ cm->frame_refs[ref_index].idx = INVALID_IDX;
+ cm->frame_refs[ref_index].buf = NULL;
+ }
+}
+
+int av1_receive_compressed_data(AV1Decoder *pbi, size_t size,
+ const uint8_t **psource) {
+ AV1_COMMON *volatile const cm = &pbi->common;
+ BufferPool *volatile const pool = cm->buffer_pool;
+ RefCntBuffer *volatile const frame_bufs = cm->buffer_pool->frame_bufs;
+ const uint8_t *source = *psource;
+ int retcode = 0;
+ cm->error.error_code = AOM_CODEC_OK;
+
+ if (size == 0) {
+ // This is used to signal that we are missing frames.
+ // We do not know if the missing frame(s) was supposed to update
+ // any of the reference buffers, but we act conservative and
+ // mark only the last buffer as corrupted.
+ //
+ // TODO(jkoleszar): Error concealment is undefined and non-normative
+ // at this point, but if it becomes so, [0] may not always be the correct
+ // thing to do here.
+ if (cm->frame_refs[0].idx > 0) {
+ assert(cm->frame_refs[0].buf != NULL);
+ cm->frame_refs[0].buf->corrupted = 1;
+ }
+ }
+
+ pbi->ready_for_new_data = 0;
+
+ // Find a free buffer for the new frame, releasing the reference previously
+ // held.
+
+ // Check if the previous frame was a frame without any references to it.
+ // Release frame buffer if not decoding in frame parallel mode.
+ if (!cm->frame_parallel_decode && cm->new_fb_idx >= 0 &&
+ frame_bufs[cm->new_fb_idx].ref_count == 0)
+ pool->release_fb_cb(pool->cb_priv,
+ &frame_bufs[cm->new_fb_idx].raw_frame_buffer);
+
+ // Find a free frame buffer. Return error if can not find any.
+ cm->new_fb_idx = get_free_fb(cm);
+ if (cm->new_fb_idx == INVALID_IDX) return AOM_CODEC_MEM_ERROR;
+
+ // Assign a MV array to the frame buffer.
+ cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];
+
+ pbi->hold_ref_buf = 0;
+ if (cm->frame_parallel_decode) {
+ AVxWorker *const worker = pbi->frame_worker_owner;
+ av1_frameworker_lock_stats(worker);
+ frame_bufs[cm->new_fb_idx].frame_worker_owner = worker;
+ // Reset decoding progress.
+ pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
+ pbi->cur_buf->row = -1;
+ pbi->cur_buf->col = -1;
+ av1_frameworker_unlock_stats(worker);
+ } else {
+ pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
+ }
+
+ if (setjmp(cm->error.jmp)) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ int i;
+
+ cm->error.setjmp = 0;
+ pbi->ready_for_new_data = 1;
+
+ // Synchronize all threads immediately as a subsequent decode call may
+ // cause a resize invalidating some allocations.
+ winterface->sync(&pbi->lf_worker);
+ for (i = 0; i < pbi->num_tile_workers; ++i) {
+ winterface->sync(&pbi->tile_workers[i]);
+ }
+
+ lock_buffer_pool(pool);
+ // Release all the reference buffers if worker thread is holding them.
+ if (pbi->hold_ref_buf == 1) {
+ int ref_index = 0, mask;
+ for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
+ const int old_idx = cm->ref_frame_map[ref_index];
+ // Current thread releases the holding of reference frame.
+ decrease_ref_count(old_idx, frame_bufs, pool);
+
+ // Release the reference frame holding in the reference map for the
+ // decoding of the next frame.
+ if (mask & 1) decrease_ref_count(old_idx, frame_bufs, pool);
+ ++ref_index;
+ }
+
+ // Current thread releases the holding of reference frame.
+ for (; ref_index < REF_FRAMES && !cm->show_existing_frame; ++ref_index) {
+ const int old_idx = cm->ref_frame_map[ref_index];
+ decrease_ref_count(old_idx, frame_bufs, pool);
+ }
+ pbi->hold_ref_buf = 0;
+ }
+ // Release current frame.
+ decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
+ unlock_buffer_pool(pool);
+
+ aom_clear_system_state();
+ return -1;
+ }
+
+ cm->error.setjmp = 1;
+ av1_decode_frame(pbi, source, source + size, psource);
+
+ swap_frame_buffers(pbi);
+
+#if CONFIG_EXT_TILE
+ // For now, we only extend the frame borders when the whole frame is decoded.
+ // Later, if needed, extend the border for the decoded tile on the frame
+ // border.
+ if (pbi->dec_tile_row == -1 && pbi->dec_tile_col == -1)
+#endif // CONFIG_EXT_TILE
+ aom_extend_frame_inner_borders(cm->frame_to_show);
+
+ aom_clear_system_state();
+
+ if (!cm->show_existing_frame) {
+ cm->last_show_frame = cm->show_frame;
+
+#if CONFIG_EXT_REFS
+ // NOTE: It is not supposed to ref to any frame not used as reference
+ if (cm->is_reference_frame)
+#endif // CONFIG_EXT_REFS
+ cm->prev_frame = cm->cur_frame;
+
+ if (cm->seg.enabled && !cm->frame_parallel_decode)
+ av1_swap_current_and_last_seg_map(cm);
+ }
+
+ // Update progress in frame parallel decode.
+ if (cm->frame_parallel_decode) {
+ // Need to lock the mutex here as another thread may
+ // be accessing this buffer.
+ AVxWorker *const worker = pbi->frame_worker_owner;
+ FrameWorkerData *const frame_worker_data = worker->data1;
+ av1_frameworker_lock_stats(worker);
+
+ if (cm->show_frame) {
+ cm->current_video_frame++;
+ }
+ frame_worker_data->frame_decoded = 1;
+ frame_worker_data->frame_context_ready = 1;
+ av1_frameworker_signal_stats(worker);
+ av1_frameworker_unlock_stats(worker);
+ } else {
+ cm->last_width = cm->width;
+ cm->last_height = cm->height;
+ if (cm->show_frame) {
+ cm->current_video_frame++;
+ }
+ }
+
+ cm->error.setjmp = 0;
+ return retcode;
+}
+
+int av1_get_raw_frame(AV1Decoder *pbi, YV12_BUFFER_CONFIG *sd) {
+ AV1_COMMON *const cm = &pbi->common;
+ int ret = -1;
+ if (pbi->ready_for_new_data == 1) return ret;
+
+ pbi->ready_for_new_data = 1;
+
+ /* no raw frame to show!!! */
+ if (!cm->show_frame) return ret;
+
+ pbi->ready_for_new_data = 1;
+ *sd = *cm->frame_to_show;
+ ret = 0;
+ aom_clear_system_state();
+ return ret;
+}
+
+int av1_get_frame_to_show(AV1Decoder *pbi, YV12_BUFFER_CONFIG *frame) {
+ AV1_COMMON *const cm = &pbi->common;
+
+ if (!cm->show_frame || !cm->frame_to_show) return -1;
+
+ *frame = *cm->frame_to_show;
+ return 0;
+}
+
+aom_codec_err_t av1_parse_superframe_index(const uint8_t *data, size_t data_sz,
+ uint32_t sizes[8], int *count,
+ aom_decrypt_cb decrypt_cb,
+ void *decrypt_state) {
+ // A chunk ending with a byte matching 0xc0 is an invalid chunk unless
+ // it is a super frame index. If the last byte of real video compression
+ // data is 0xc0 the encoder must add a 0 byte. If we have the marker but
+ // not the associated matching marker byte at the front of the index we have
+ // an invalid bitstream and need to return an error.
+
+ uint8_t marker;
+ size_t frame_sz_sum = 0;
+
+ assert(data_sz);
+ marker = read_marker(decrypt_cb, decrypt_state, data + data_sz - 1);
+ *count = 0;
+
+ if ((marker & 0xe0) == 0xc0) {
+ const uint32_t frames = (marker & 0x7) + 1;
+ const uint32_t mag = ((marker >> 3) & 0x3) + 1;
+ const size_t index_sz = 2 + mag * (frames - 1);
+
+ // This chunk is marked as having a superframe index but doesn't have
+ // enough data for it, thus it's an invalid superframe index.
+ if (data_sz < index_sz) return AOM_CODEC_CORRUPT_FRAME;
+
+ {
+ const uint8_t marker2 =
+ read_marker(decrypt_cb, decrypt_state, data + data_sz - index_sz);
+
+ // This chunk is marked as having a superframe index but doesn't have
+ // the matching marker byte at the front of the index therefore it's an
+ // invalid chunk.
+ if (marker != marker2) return AOM_CODEC_CORRUPT_FRAME;
+ }
+
+ {
+ // Found a valid superframe index.
+ uint32_t i, j;
+ const uint8_t *x = &data[data_sz - index_sz + 1];
+
+ // Frames has a maximum of 8 and mag has a maximum of 4.
+ uint8_t clear_buffer[28];
+ assert(sizeof(clear_buffer) >= (frames - 1) * mag);
+ if (decrypt_cb) {
+ decrypt_cb(decrypt_state, x, clear_buffer, (frames - 1) * mag);
+ x = clear_buffer;
+ }
+
+ for (i = 0; i < frames - 1; ++i) {
+ uint32_t this_sz = 0;
+
+ for (j = 0; j < mag; ++j) this_sz |= (*x++) << (j * 8);
+ this_sz += 1;
+ sizes[i] = this_sz;
+ frame_sz_sum += this_sz;
+ }
+ sizes[i] = (uint32_t)(data_sz - index_sz - frame_sz_sum);
+ *count = frames;
+ }
+ }
+ return AOM_CODEC_OK;
+}
diff --git a/third_party/aom/av1/decoder/decoder.h b/third_party/aom/av1/decoder/decoder.h
new file mode 100644
index 000000000..4a90b4ad5
--- /dev/null
+++ b/third_party/aom/av1/decoder/decoder.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DECODER_H_
+#define AV1_DECODER_DECODER_H_
+
+#include "./aom_config.h"
+
+#include "aom/aom_codec.h"
+#include "aom_dsp/bitreader.h"
+#include "aom_scale/yv12config.h"
+#include "aom_util/aom_thread.h"
+
+#include "av1/common/thread_common.h"
+#include "av1/common/onyxc_int.h"
+#include "av1/decoder/dthread.h"
+#if CONFIG_ACCOUNTING
+#include "av1/decoder/accounting.h"
+#endif
+#if CONFIG_INSPECTION
+#include "av1/decoder/inspection.h"
+#endif
+
+#if CONFIG_PVQ
+#include "aom_dsp/entdec.h"
+#include "av1/decoder/decint.h"
+#include "av1/encoder/encodemb.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// TODO(hkuang): combine this with TileWorkerData.
+typedef struct TileData {
+ AV1_COMMON *cm;
+ aom_reader bit_reader;
+ DECLARE_ALIGNED(16, MACROBLOCKD, xd);
+ /* dqcoeff are shared by all the planes. So planes must be decoded serially */
+ DECLARE_ALIGNED(16, tran_low_t, dqcoeff[MAX_TX_SQUARE]);
+#if CONFIG_PVQ
+ /* forward transformed predicted image, a reference for PVQ */
+ DECLARE_ALIGNED(16, tran_low_t, pvq_ref_coeff[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
+#endif
+#if CONFIG_CFL
+ CFL_CTX cfl;
+#endif
+#if CONFIG_EC_ADAPT
+ DECLARE_ALIGNED(16, FRAME_CONTEXT, tctx);
+#endif
+#if CONFIG_PALETTE
+ DECLARE_ALIGNED(16, uint8_t, color_index_map[2][MAX_SB_SQUARE]);
+#endif // CONFIG_PALETTE
+} TileData;
+
+typedef struct TileWorkerData {
+ struct AV1Decoder *pbi;
+ aom_reader bit_reader;
+ FRAME_COUNTS counts;
+ DECLARE_ALIGNED(16, MACROBLOCKD, xd);
+ /* dqcoeff are shared by all the planes. So planes must be decoded serially */
+ DECLARE_ALIGNED(16, tran_low_t, dqcoeff[MAX_TX_SQUARE]);
+#if CONFIG_PVQ
+ /* forward transformed predicted image, a reference for PVQ */
+ DECLARE_ALIGNED(16, tran_low_t, pvq_ref_coeff[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
+#endif
+#if CONFIG_CFL
+ CFL_CTX cfl;
+#endif
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT tctx;
+#endif
+#if CONFIG_PALETTE
+ DECLARE_ALIGNED(16, uint8_t, color_index_map[2][MAX_SB_SQUARE]);
+#endif // CONFIG_PALETTE
+ struct aom_internal_error_info error_info;
+} TileWorkerData;
+
+typedef struct TileBufferDec {
+ const uint8_t *data;
+ size_t size;
+ const uint8_t *raw_data_end; // The end of the raw tile buffer in the
+ // bit stream.
+ int col; // only used with multi-threaded decoding
+} TileBufferDec;
+
+typedef struct AV1Decoder {
+ DECLARE_ALIGNED(16, MACROBLOCKD, mb);
+
+ DECLARE_ALIGNED(16, AV1_COMMON, common);
+
+ int ready_for_new_data;
+
+ int refresh_frame_flags;
+
+ // TODO(hkuang): Combine this with cur_buf in macroblockd as they are
+ // the same.
+ RefCntBuffer *cur_buf; // Current decoding frame buffer.
+
+ AVxWorker *frame_worker_owner; // frame_worker that owns this pbi.
+ AVxWorker lf_worker;
+ AVxWorker *tile_workers;
+ TileWorkerData *tile_worker_data;
+ TileInfo *tile_worker_info;
+ int num_tile_workers;
+
+ TileData *tile_data;
+ int allocated_tiles;
+
+ TileBufferDec tile_buffers[MAX_TILE_ROWS][MAX_TILE_COLS];
+
+ AV1LfSync lf_row_sync;
+
+ aom_decrypt_cb decrypt_cb;
+ void *decrypt_state;
+
+ int max_threads;
+ int inv_tile_order;
+ int need_resync; // wait for key/intra-only frame.
+ int hold_ref_buf; // hold the reference buffer.
+
+ int tile_size_bytes;
+#if CONFIG_EXT_TILE
+ int tile_col_size_bytes;
+ int dec_tile_row, dec_tile_col;
+#endif // CONFIG_EXT_TILE
+#if CONFIG_ACCOUNTING
+ int acct_enabled;
+ Accounting accounting;
+#endif
+ size_t uncomp_hdr_size; // Size of the uncompressed header
+ size_t first_partition_size; // Size of the compressed header
+#if CONFIG_TILE_GROUPS
+ int tg_size; // Number of tiles in the current tilegroup
+ int tg_start; // First tile in the current tilegroup
+ int tg_size_bit_offset;
+#endif
+#if CONFIG_REFERENCE_BUFFER
+ SequenceHeader seq_params;
+#endif
+#if CONFIG_INSPECTION
+ aom_inspect_cb inspect_cb;
+ void *inspect_ctx;
+#endif
+} AV1Decoder;
+
+int av1_receive_compressed_data(struct AV1Decoder *pbi, size_t size,
+ const uint8_t **dest);
+
+int av1_get_raw_frame(struct AV1Decoder *pbi, YV12_BUFFER_CONFIG *sd);
+
+int av1_get_frame_to_show(struct AV1Decoder *pbi, YV12_BUFFER_CONFIG *frame);
+
+aom_codec_err_t av1_copy_reference_dec(struct AV1Decoder *pbi,
+ AOM_REFFRAME ref_frame_flag,
+ YV12_BUFFER_CONFIG *sd);
+
+aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm,
+ AOM_REFFRAME ref_frame_flag,
+ YV12_BUFFER_CONFIG *sd);
+
+static INLINE uint8_t read_marker(aom_decrypt_cb decrypt_cb,
+ void *decrypt_state, const uint8_t *data) {
+ if (decrypt_cb) {
+ uint8_t marker;
+ decrypt_cb(decrypt_state, data, &marker, 1);
+ return marker;
+ }
+ return *data;
+}
+
+// This function is exposed for use in tests, as well as the inlined function
+// "read_marker".
+aom_codec_err_t av1_parse_superframe_index(const uint8_t *data, size_t data_sz,
+ uint32_t sizes[8], int *count,
+ aom_decrypt_cb decrypt_cb,
+ void *decrypt_state);
+
+struct AV1Decoder *av1_decoder_create(BufferPool *const pool);
+
+void av1_decoder_remove(struct AV1Decoder *pbi);
+
+static INLINE void decrease_ref_count(int idx, RefCntBuffer *const frame_bufs,
+ BufferPool *const pool) {
+ if (idx >= 0) {
+ --frame_bufs[idx].ref_count;
+ // A worker may only get a free framebuffer index when calling get_free_fb.
+ // But the private buffer is not set up until finish decoding header.
+ // So any error happens during decoding header, the frame_bufs will not
+ // have valid priv buffer.
+ if (frame_bufs[idx].ref_count == 0 &&
+ frame_bufs[idx].raw_frame_buffer.priv) {
+ pool->release_fb_cb(pool->cb_priv, &frame_bufs[idx].raw_frame_buffer);
+ }
+ }
+}
+
+#if CONFIG_EXT_REFS
+static INLINE int dec_is_ref_frame_buf(AV1Decoder *const pbi,
+ RefCntBuffer *frame_buf) {
+ AV1_COMMON *const cm = &pbi->common;
+ int i;
+ for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ if (ref_frame->idx == INVALID_IDX) continue;
+ if (frame_buf == &cm->buffer_pool->frame_bufs[ref_frame->idx]) break;
+ }
+ return (i < INTER_REFS_PER_FRAME);
+}
+#endif // CONFIG_EXT_REFS
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AV1_DECODER_DECODER_H_
diff --git a/third_party/aom/av1/decoder/decodetxb.c b/third_party/aom/av1/decoder/decodetxb.c
new file mode 100644
index 000000000..e1db09775
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodetxb.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "av1/common/scan.h"
+#include "av1/common/idct.h"
+#include "av1/common/txb_common.h"
+#include "av1/decoder/decodemv.h"
+#include "av1/decoder/decodetxb.h"
+#include "av1/decoder/dsubexp.h"
+
+#define ACCT_STR __func__
+
+static int read_golomb(MACROBLOCKD *xd, aom_reader *r) {
+ int x = 1;
+ int length = 0;
+ int i = 0;
+
+ while (!i) {
+ i = aom_read_bit(r, ACCT_STR);
+ ++length;
+ if (length >= 32) {
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid length in read_golomb");
+ break;
+ }
+ }
+
+ for (i = 0; i < length - 1; ++i) {
+ x <<= 1;
+ x += aom_read_bit(r, ACCT_STR);
+ }
+
+ return x - 1;
+}
+
+uint8_t av1_read_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCKD *xd,
+ aom_reader *r, int block, int plane,
+ tran_low_t *tcoeffs, TXB_CTX *txb_ctx,
+ int16_t *max_scan_line, int *eob) {
+ FRAME_COUNTS *counts = xd->counts;
+ TX_SIZE tx_size = get_tx_size(plane, xd);
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ aom_prob *nz_map = cm->fc->nz_map[tx_size][plane_type];
+ aom_prob *eob_flag = cm->fc->eob_flag[tx_size][plane_type];
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+ const int seg_eob = tx_size_2d[tx_size];
+ int c = 0;
+ int update_eob = -1;
+ const int16_t *const dequant = xd->plane[plane].seg_dequant[mbmi->segment_id];
+ const int shift = av1_get_tx_scale(tx_size);
+ const int bwl = b_width_log2_lookup[txsize_to_bsize[tx_size]] + 2;
+ int cul_level = 0;
+ unsigned int(*nz_map_count)[SIG_COEF_CONTEXTS][2];
+ uint8_t txb_mask[32 * 32] = { 0 };
+
+ nz_map_count = (counts) ? &counts->nz_map[tx_size][plane_type] : NULL;
+
+ memset(tcoeffs, 0, sizeof(*tcoeffs) * seg_eob);
+
+ int all_zero =
+ aom_read(r, cm->fc->txb_skip[tx_size][txb_ctx->txb_skip_ctx], ACCT_STR);
+ if (xd->counts)
+ ++xd->counts->txb_skip[tx_size][txb_ctx->txb_skip_ctx][all_zero];
+
+ *eob = 0;
+ if (all_zero) {
+ *max_scan_line = 0;
+ return 0;
+ }
+
+#if CONFIG_TXK_SEL
+ av1_read_tx_type(cm, xd, block, plane, r);
+#endif
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block, tx_size);
+ const SCAN_ORDER *const scan_order =
+ get_scan(cm, tx_size, tx_type, is_inter_block(mbmi));
+ const int16_t *scan = scan_order->scan;
+
+ for (c = 0; c < seg_eob; ++c) {
+ int is_nz;
+ int coeff_ctx = get_nz_map_ctx(tcoeffs, txb_mask, scan[c], bwl);
+ int eob_ctx = get_eob_ctx(tcoeffs, scan[c], bwl);
+
+ if (c < seg_eob - 1)
+ is_nz = aom_read(r, nz_map[coeff_ctx], tx_size);
+ else
+ is_nz = 1;
+
+ // set non-zero coefficient map.
+ tcoeffs[scan[c]] = is_nz;
+
+ if (c == seg_eob - 1) {
+ ++c;
+ break;
+ }
+
+ if (counts) ++(*nz_map_count)[coeff_ctx][is_nz];
+
+ if (is_nz) {
+ int is_eob = aom_read(r, eob_flag[eob_ctx], tx_size);
+ if (counts) ++counts->eob_flag[tx_size][plane_type][eob_ctx][is_eob];
+ if (is_eob) break;
+ }
+ txb_mask[scan[c]] = 1;
+ }
+
+ *eob = AOMMIN(seg_eob, c + 1);
+ *max_scan_line = *eob;
+
+ int i;
+ for (i = 0; i < NUM_BASE_LEVELS; ++i) {
+ aom_prob *coeff_base = cm->fc->coeff_base[tx_size][plane_type][i];
+
+ update_eob = 0;
+ for (c = *eob - 1; c >= 0; --c) {
+ tran_low_t *v = &tcoeffs[scan[c]];
+ int sign;
+ int ctx;
+
+ if (*v <= i) continue;
+
+ ctx = get_base_ctx(tcoeffs, scan[c], bwl, i + 1);
+
+ if (aom_read(r, coeff_base[ctx], tx_size)) {
+ *v = i + 1;
+ cul_level += i + 1;
+
+ if (counts) ++counts->coeff_base[tx_size][plane_type][i][ctx][1];
+
+ if (c == 0) {
+ int dc_sign_ctx = txb_ctx->dc_sign_ctx;
+ sign = aom_read(r, cm->fc->dc_sign[plane_type][dc_sign_ctx], tx_size);
+ if (counts) ++counts->dc_sign[plane_type][dc_sign_ctx][sign];
+ } else {
+ sign = aom_read_bit(r, ACCT_STR);
+ }
+ if (sign) *v = -(*v);
+ continue;
+ }
+ *v = i + 2;
+ if (counts) ++counts->coeff_base[tx_size][plane_type][i][ctx][0];
+
+ // update the eob flag for coefficients with magnitude above 1.
+ update_eob = AOMMAX(update_eob, c);
+ }
+ }
+
+ for (c = update_eob; c >= 0; --c) {
+ tran_low_t *v = &tcoeffs[scan[c]];
+ int sign;
+ int idx;
+ int ctx;
+
+ if (*v <= NUM_BASE_LEVELS) continue;
+
+ if (c == 0) {
+ int dc_sign_ctx = txb_ctx->dc_sign_ctx;
+ sign = aom_read(r, cm->fc->dc_sign[plane_type][dc_sign_ctx], tx_size);
+ if (counts) ++counts->dc_sign[plane_type][dc_sign_ctx][sign];
+ } else {
+ sign = aom_read_bit(r, ACCT_STR);
+ }
+
+ ctx = get_level_ctx(tcoeffs, scan[c], bwl);
+
+ if (cm->fc->coeff_lps[tx_size][plane_type][ctx] == 0) exit(0);
+
+ for (idx = 0; idx < COEFF_BASE_RANGE; ++idx) {
+ if (aom_read(r, cm->fc->coeff_lps[tx_size][plane_type][ctx], tx_size)) {
+ *v = (idx + 1 + NUM_BASE_LEVELS);
+ if (sign) *v = -(*v);
+ cul_level += abs(*v);
+
+ if (counts) ++counts->coeff_lps[tx_size][plane_type][ctx][1];
+ break;
+ }
+ if (counts) ++counts->coeff_lps[tx_size][plane_type][ctx][0];
+ }
+ if (idx < COEFF_BASE_RANGE) continue;
+
+ // decode 0-th order Golomb code
+ *v = read_golomb(xd, r) + COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS;
+ if (sign) *v = -(*v);
+ cul_level += abs(*v);
+ }
+
+ for (c = 0; c < *eob; ++c) {
+ int16_t dqv = (c == 0) ? dequant[0] : dequant[1];
+ tran_low_t *v = &tcoeffs[scan[c]];
+ int sign = (*v) < 0;
+ *v = (abs(*v) * dqv) >> shift;
+ if (sign) *v = -(*v);
+ }
+
+ cul_level = AOMMIN(63, cul_level);
+
+ // DC value
+ set_dc_sign(&cul_level, tcoeffs[0]);
+
+ return cul_level;
+}
+
+uint8_t av1_read_coeffs_txb_facade(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r, int row, int col, int block,
+ int plane, tran_low_t *tcoeffs,
+ int16_t *max_scan_line, int *eob) {
+ MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
+ struct macroblockd_plane *pd = &xd->plane[plane];
+
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+#if CONFIG_CB4X4
+#if CONFIG_CHROMA_2X2
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
+#else
+ const BLOCK_SIZE plane_bsize =
+ AOMMAX(BLOCK_4X4, get_plane_block_size(bsize, pd));
+#endif // CONFIG_CHROMA_2X2
+#else // CONFIG_CB4X4
+ const BLOCK_SIZE plane_bsize =
+ get_plane_block_size(AOMMAX(BLOCK_8X8, bsize), pd);
+#endif // CONFIG_CB4X4
+
+ TX_SIZE tx_size = get_tx_size(plane, xd);
+ TXB_CTX txb_ctx;
+ get_txb_ctx(plane_bsize, tx_size, plane, pd->above_context + col,
+ pd->left_context + row, &txb_ctx);
+ uint8_t cul_level = av1_read_coeffs_txb(cm, xd, r, block, plane, tcoeffs,
+ &txb_ctx, max_scan_line, eob);
+#if CONFIG_ADAPT_SCAN
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ TX_TYPE tx_type = get_tx_type(plane_type, xd, block, tx_size);
+ if (xd->counts && *eob > 0)
+ av1_update_scan_count_facade(cm, xd->counts, tx_size, tx_type, pd->dqcoeff,
+ *eob);
+#endif
+ av1_set_contexts(xd, pd, plane, tx_size, cul_level, col, row);
+ return cul_level;
+}
+
+static void read_txb_probs(FRAME_CONTEXT *fc, const TX_SIZE tx_size,
+ aom_reader *r) {
+ int plane, ctx, level;
+
+ if (aom_read_bit(r, ACCT_STR) == 0) return;
+
+ for (ctx = 0; ctx < TXB_SKIP_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->txb_skip[tx_size][ctx], ACCT_STR);
+
+ for (plane = 0; plane < PLANE_TYPES; ++plane)
+ for (ctx = 0; ctx < SIG_COEF_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->nz_map[tx_size][plane][ctx], ACCT_STR);
+
+ for (plane = 0; plane < PLANE_TYPES; ++plane)
+ for (ctx = 0; ctx < EOB_COEF_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->eob_flag[tx_size][plane][ctx], ACCT_STR);
+
+ for (level = 0; level < NUM_BASE_LEVELS; ++level)
+ for (plane = 0; plane < PLANE_TYPES; ++plane)
+ for (ctx = 0; ctx < COEFF_BASE_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->coeff_base[tx_size][plane][level][ctx],
+ ACCT_STR);
+
+ for (plane = 0; plane < PLANE_TYPES; ++plane)
+ for (ctx = 0; ctx < LEVEL_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->coeff_lps[tx_size][plane][ctx], ACCT_STR);
+}
+
+void av1_read_txb_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode, aom_reader *r) {
+ const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
+ TX_SIZE tx_size;
+ int ctx, plane;
+ for (plane = 0; plane < PLANE_TYPES; ++plane)
+ for (ctx = 0; ctx < DC_SIGN_CONTEXTS; ++ctx)
+ av1_diff_update_prob(r, &fc->dc_sign[plane][ctx], ACCT_STR);
+
+ for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
+ read_txb_probs(fc, tx_size, r);
+}
diff --git a/third_party/aom/av1/decoder/decodetxb.h b/third_party/aom/av1/decoder/decodetxb.h
new file mode 100644
index 000000000..ee1bf6a3d
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodetxb.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef DECODETXB_H_
+#define DECODETXB_H_
+
+#include "./aom_config.h"
+#include "av1/common/blockd.h"
+#include "av1/common/onyxc_int.h"
+#include "av1/common/txb_common.h"
+#include "aom_dsp/bitreader.h"
+
+uint8_t av1_read_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCKD *xd,
+ aom_reader *r, int block, int plane,
+ tran_low_t *tcoeffs, TXB_CTX *txb_ctx,
+ int16_t *max_scan_line, int *eob);
+
+uint8_t av1_read_coeffs_txb_facade(AV1_COMMON *cm, MACROBLOCKD *xd,
+ aom_reader *r, int row, int col, int block,
+ int plane, tran_low_t *tcoeffs,
+ int16_t *max_scan_line, int *eob);
+void av1_read_txb_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode, aom_reader *r);
+#endif // DECODETXB_H_
diff --git a/third_party/aom/av1/decoder/detokenize.c b/third_party/aom/av1/decoder/detokenize.c
new file mode 100644
index 000000000..494f1681f
--- /dev/null
+++ b/third_party/aom/av1/decoder/detokenize.c
@@ -0,0 +1,467 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "./aom_config.h"
+#if !CONFIG_PVQ
+#include "aom_mem/aom_mem.h"
+#include "aom_ports/mem.h"
+#endif // !CONFIG_PVQ
+
+#include "av1/common/blockd.h"
+
+#define ACCT_STR __func__
+
+#if !CONFIG_PVQ || CONFIG_VAR_TX
+#include "av1/common/common.h"
+#include "av1/common/entropy.h"
+#include "av1/common/idct.h"
+#include "av1/decoder/detokenize.h"
+
+#define EOB_CONTEXT_NODE 0
+#define ZERO_CONTEXT_NODE 1
+#define ONE_CONTEXT_NODE 2
+#define LOW_VAL_CONTEXT_NODE 0
+#define TWO_CONTEXT_NODE 1
+#define THREE_CONTEXT_NODE 2
+#define HIGH_LOW_CONTEXT_NODE 3
+#define CAT_ONE_CONTEXT_NODE 4
+#define CAT_THREEFOUR_CONTEXT_NODE 5
+#define CAT_THREE_CONTEXT_NODE 6
+#define CAT_FIVE_CONTEXT_NODE 7
+
+#define INCREMENT_COUNT(token) \
+ do { \
+ if (counts) ++coef_counts[band][ctx][token]; \
+ } while (0)
+
+#if CONFIG_NEW_MULTISYMBOL
+#define READ_COEFF(prob_name, cdf_name, num, r) read_coeff(cdf_name, num, r);
+static INLINE int read_coeff(const aom_cdf_prob *const *cdf, int n,
+ aom_reader *r) {
+ int val = 0;
+ int i = 0;
+ int count = 0;
+ while (count < n) {
+ const int size = AOMMIN(n - count, 4);
+ val |= aom_read_cdf(r, cdf[i++], 1 << size, ACCT_STR) << count;
+ count += size;
+ }
+ return val;
+}
+#else
+#define READ_COEFF(prob_name, cdf_name, num, r) read_coeff(prob_name, num, r);
+static INLINE int read_coeff(const aom_prob *probs, int n, aom_reader *r) {
+ int i, val = 0;
+ for (i = 0; i < n; ++i) val = (val << 1) | aom_read(r, probs[i], ACCT_STR);
+ return val;
+}
+
+#endif
+
+static int token_to_value(aom_reader *const r, int token, TX_SIZE tx_size,
+ int bit_depth) {
+#if !CONFIG_HIGHBITDEPTH
+ assert(bit_depth == 8);
+#endif // !CONFIG_HIGHBITDEPTH
+
+ switch (token) {
+ case ZERO_TOKEN:
+ case ONE_TOKEN:
+ case TWO_TOKEN:
+ case THREE_TOKEN:
+ case FOUR_TOKEN: return token;
+ case CATEGORY1_TOKEN:
+ return CAT1_MIN_VAL + READ_COEFF(av1_cat1_prob, av1_cat1_cdf, 1, r);
+ case CATEGORY2_TOKEN:
+ return CAT2_MIN_VAL + READ_COEFF(av1_cat2_prob, av1_cat2_cdf, 2, r);
+ case CATEGORY3_TOKEN:
+ return CAT3_MIN_VAL + READ_COEFF(av1_cat3_prob, av1_cat3_cdf, 3, r);
+ case CATEGORY4_TOKEN:
+ return CAT4_MIN_VAL + READ_COEFF(av1_cat4_prob, av1_cat4_cdf, 4, r);
+ case CATEGORY5_TOKEN:
+ return CAT5_MIN_VAL + READ_COEFF(av1_cat5_prob, av1_cat5_cdf, 5, r);
+ case CATEGORY6_TOKEN: {
+ const int skip_bits = (int)sizeof(av1_cat6_prob) -
+ av1_get_cat6_extrabits_size(tx_size, bit_depth);
+ return CAT6_MIN_VAL + READ_COEFF(av1_cat6_prob + skip_bits, av1_cat6_cdf,
+ 18 - skip_bits, r);
+ }
+ default:
+ assert(0); // Invalid token.
+ return -1;
+ }
+}
+
+static int decode_coefs(MACROBLOCKD *xd, PLANE_TYPE type, tran_low_t *dqcoeff,
+ TX_SIZE tx_size, TX_TYPE tx_type, const int16_t *dq,
+#if CONFIG_NEW_QUANT
+ dequant_val_type_nuq *dq_val,
+#endif // CONFIG_NEW_QUANT
+#if CONFIG_AOM_QM
+ const qm_val_t *iqm[2][TX_SIZES],
+#endif // CONFIG_AOM_QM
+ int ctx, const int16_t *scan, const int16_t *nb,
+ int16_t *max_scan_line, aom_reader *r) {
+ FRAME_COUNTS *counts = xd->counts;
+#if CONFIG_EC_ADAPT
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#else
+ FRAME_CONTEXT *const ec_ctx = xd->fc;
+#endif
+ const int max_eob = tx_size_2d[tx_size];
+ const int ref = is_inter_block(&xd->mi[0]->mbmi);
+#if CONFIG_AOM_QM
+ const qm_val_t *iqmatrix = iqm[!ref][tx_size];
+#endif // CONFIG_AOM_QM
+ int band, c = 0;
+ const int tx_size_ctx = txsize_sqr_map[tx_size];
+#if CONFIG_NEW_TOKENSET
+ aom_cdf_prob(*coef_head_cdfs)[COEFF_CONTEXTS][CDF_SIZE(ENTROPY_TOKENS)] =
+ ec_ctx->coef_head_cdfs[tx_size_ctx][type][ref];
+ aom_cdf_prob(*coef_tail_cdfs)[COEFF_CONTEXTS][CDF_SIZE(ENTROPY_TOKENS)] =
+ ec_ctx->coef_tail_cdfs[tx_size_ctx][type][ref];
+ int val = 0;
+
+#if !CONFIG_EC_ADAPT
+ unsigned int *blockz_count;
+ unsigned int(*coef_counts)[COEFF_CONTEXTS][UNCONSTRAINED_NODES + 1] = NULL;
+ unsigned int(*eob_branch_count)[COEFF_CONTEXTS] = NULL;
+#endif
+#else
+ aom_prob(*coef_probs)[COEFF_CONTEXTS][UNCONSTRAINED_NODES] =
+ ec_ctx->coef_probs[tx_size_ctx][type][ref];
+ const aom_prob *prob;
+#if CONFIG_EC_MULTISYMBOL
+ aom_cdf_prob(*coef_cdfs)[COEFF_CONTEXTS][CDF_SIZE(ENTROPY_TOKENS)] =
+ ec_ctx->coef_cdfs[tx_size_ctx][type][ref];
+ aom_cdf_prob(*cdf)[CDF_SIZE(ENTROPY_TOKENS)];
+#endif // CONFIG_EC_MULTISYMBOL
+ unsigned int(*coef_counts)[COEFF_CONTEXTS][UNCONSTRAINED_NODES + 1] = NULL;
+ unsigned int(*eob_branch_count)[COEFF_CONTEXTS] = NULL;
+#endif // CONFIG_NEW_TOKENSET
+ uint8_t token_cache[MAX_TX_SQUARE];
+ const uint8_t *band_translate = get_band_translate(tx_size);
+ int dq_shift;
+ int v, token;
+ int16_t dqv = dq[0];
+#if CONFIG_NEW_QUANT
+ const tran_low_t *dqv_val = &dq_val[0][0];
+#endif // CONFIG_NEW_QUANT
+ (void)tx_type;
+#if CONFIG_AOM_QM
+ (void)iqmatrix;
+#endif // CONFIG_AOM_QM
+
+ if (counts) {
+#if !CONFIG_NEW_TOKENSET || !CONFIG_EC_ADAPT
+ coef_counts = counts->coef[tx_size_ctx][type][ref];
+ eob_branch_count = counts->eob_branch[tx_size_ctx][type][ref];
+#endif
+#if CONFIG_NEW_TOKENSET && !CONFIG_EC_ADAPT
+ blockz_count = counts->blockz_count[tx_size_ctx][type][ref][ctx];
+#endif
+ }
+
+ dq_shift = av1_get_tx_scale(tx_size);
+
+#if CONFIG_NEW_TOKENSET
+ band = *band_translate++;
+
+ int more_data = 1;
+ while (more_data) {
+ int comb_token;
+ int last_pos = (c + 1 == max_eob);
+ int first_pos = (c == 0);
+
+#if CONFIG_NEW_QUANT
+ dqv_val = &dq_val[band][0];
+#endif // CONFIG_NEW_QUANT
+
+ comb_token = last_pos ? 2 * aom_read_bit(r, ACCT_STR) + 2
+ : aom_read_symbol(r, coef_head_cdfs[band][ctx],
+ HEAD_TOKENS + first_pos, ACCT_STR) +
+ !first_pos;
+ if (first_pos) {
+#if !CONFIG_EC_ADAPT
+ if (counts) ++blockz_count[comb_token != 0];
+#endif
+ if (comb_token == 0) return 0;
+ }
+ token = comb_token >> 1;
+
+ while (!token) {
+ *max_scan_line = AOMMAX(*max_scan_line, scan[c]);
+ token_cache[scan[c]] = 0;
+#if !CONFIG_EC_ADAPT
+ if (counts && !last_pos) {
+ ++coef_counts[band][ctx][ZERO_TOKEN];
+ }
+#endif
+ ++c;
+ dqv = dq[1];
+ ctx = get_coef_context(nb, token_cache, c);
+ band = *band_translate++;
+
+ last_pos = (c + 1 == max_eob);
+
+ comb_token = last_pos ? 2 * aom_read_bit(r, ACCT_STR) + 2
+ : aom_read_symbol(r, coef_head_cdfs[band][ctx],
+ HEAD_TOKENS, ACCT_STR) +
+ 1;
+ token = comb_token >> 1;
+ }
+
+ more_data = comb_token & 1;
+#if !CONFIG_EC_ADAPT
+ if (counts && !last_pos) {
+ ++coef_counts[band][ctx][token];
+ ++eob_branch_count[band][ctx];
+ if (!more_data) ++coef_counts[band][ctx][EOB_MODEL_TOKEN];
+ }
+#endif
+
+ if (token > ONE_TOKEN)
+ token +=
+ aom_read_symbol(r, coef_tail_cdfs[band][ctx], TAIL_TOKENS, ACCT_STR);
+#if CONFIG_NEW_QUANT
+ dqv_val = &dq_val[band][0];
+#endif // CONFIG_NEW_QUANT
+
+ *max_scan_line = AOMMAX(*max_scan_line, scan[c]);
+ token_cache[scan[c]] = av1_pt_energy_class[token];
+
+ val = token_to_value(r, token, tx_size,
+#if CONFIG_HIGHBITDEPTH
+ xd->bd);
+#else
+ 8);
+#endif // CONFIG_HIGHBITDEPTH
+
+#if CONFIG_NEW_QUANT
+ v = av1_dequant_abscoeff_nuq(val, dqv, dqv_val);
+ v = dq_shift ? ROUND_POWER_OF_TWO(v, dq_shift) : v;
+#else
+#if CONFIG_AOM_QM
+ dqv = ((iqmatrix[scan[c]] * (int)dqv) + (1 << (AOM_QM_BITS - 1))) >>
+ AOM_QM_BITS;
+#endif
+ v = (val * dqv) >> dq_shift;
+#endif
+
+ v = aom_read_bit(r, ACCT_STR) ? -v : v;
+#if CONFIG_COEFFICIENT_RANGE_CHECKING
+#if CONFIG_HIGHBITDEPTH
+ check_range(v, xd->bd);
+#else
+ check_range(v, 8);
+#endif // CONFIG_HIGHBITDEPTH
+#endif // CONFIG_COEFFICIENT_RANGE_CHECKING
+
+ dqcoeff[scan[c]] = v;
+
+ ++c;
+ more_data &= (c < max_eob);
+ if (!more_data) break;
+ dqv = dq[1];
+ ctx = get_coef_context(nb, token_cache, c);
+ band = *band_translate++;
+
+#else // CONFIG_NEW_TOKENSET
+ while (c < max_eob) {
+ int val = -1;
+ band = *band_translate++;
+ prob = coef_probs[band][ctx];
+ if (counts) ++eob_branch_count[band][ctx];
+ if (!aom_read(r, prob[EOB_CONTEXT_NODE], ACCT_STR)) {
+ INCREMENT_COUNT(EOB_MODEL_TOKEN);
+ break;
+ }
+
+#if CONFIG_NEW_QUANT
+ dqv_val = &dq_val[band][0];
+#endif // CONFIG_NEW_QUANT
+
+ while (!aom_read(r, prob[ZERO_CONTEXT_NODE], ACCT_STR)) {
+ INCREMENT_COUNT(ZERO_TOKEN);
+ dqv = dq[1];
+ token_cache[scan[c]] = 0;
+ ++c;
+ if (c >= max_eob) return c; // zero tokens at the end (no eob token)
+ ctx = get_coef_context(nb, token_cache, c);
+ band = *band_translate++;
+ prob = coef_probs[band][ctx];
+#if CONFIG_NEW_QUANT
+ dqv_val = &dq_val[band][0];
+#endif // CONFIG_NEW_QUANT
+ }
+
+ *max_scan_line = AOMMAX(*max_scan_line, scan[c]);
+
+#if CONFIG_EC_MULTISYMBOL
+ cdf = &coef_cdfs[band][ctx];
+ token = ONE_TOKEN +
+ aom_read_symbol(r, *cdf, CATEGORY6_TOKEN - ONE_TOKEN + 1, ACCT_STR);
+ INCREMENT_COUNT(ONE_TOKEN + (token > ONE_TOKEN));
+ assert(token != ZERO_TOKEN);
+ val = token_to_value(r, token, tx_size,
+#if CONFIG_HIGHBITDEPTH
+ xd->bd);
+#else
+ 8);
+#endif // CONFIG_HIGHBITDEPTH
+#else // CONFIG_EC_MULTISYMBOL
+ if (!aom_read(r, prob[ONE_CONTEXT_NODE], ACCT_STR)) {
+ INCREMENT_COUNT(ONE_TOKEN);
+ token = ONE_TOKEN;
+ val = 1;
+ } else {
+ INCREMENT_COUNT(TWO_TOKEN);
+ token = aom_read_tree(r, av1_coef_con_tree,
+ av1_pareto8_full[prob[PIVOT_NODE] - 1], ACCT_STR);
+ assert(token != ZERO_TOKEN && token != ONE_TOKEN);
+ val = token_to_value(r, token, tx_size,
+#if CONFIG_HIGHBITDEPTH
+ xd->bd);
+#else
+ 8);
+#endif // CONFIG_HIGHBITDEPTH
+ }
+#endif // CONFIG_EC_MULTISYMBOL
+#if CONFIG_NEW_QUANT
+ v = av1_dequant_abscoeff_nuq(val, dqv, dqv_val);
+ v = dq_shift ? ROUND_POWER_OF_TWO(v, dq_shift) : v;
+#else
+#if CONFIG_AOM_QM
+ dqv = ((iqmatrix[scan[c]] * (int)dqv) + (1 << (AOM_QM_BITS - 1))) >>
+ AOM_QM_BITS;
+#endif
+ v = (val * dqv) >> dq_shift;
+#endif // CONFIG_NEW_QUANT
+
+#if CONFIG_COEFFICIENT_RANGE_CHECKING
+#if CONFIG_HIGHBITDEPTH
+ dqcoeff[scan[c]] =
+ highbd_check_range((aom_read_bit(r, ACCT_STR) ? -v : v), xd->bd);
+#else
+ dqcoeff[scan[c]] = check_range(aom_read_bit(r, ACCT_STR) ? -v : v, 8);
+#endif // CONFIG_HIGHBITDEPTH
+#else
+ dqcoeff[scan[c]] = aom_read_bit(r, ACCT_STR) ? -v : v;
+#endif // CONFIG_COEFFICIENT_RANGE_CHECKING
+ token_cache[scan[c]] = av1_pt_energy_class[token];
+ ++c;
+ ctx = get_coef_context(nb, token_cache, c);
+ dqv = dq[1];
+#endif // CONFIG_NEW_TOKENSET
+ }
+
+ return c;
+}
+#endif // !CONFIG_PVQ
+
+#if CONFIG_PALETTE
+void av1_decode_palette_tokens(MACROBLOCKD *const xd, int plane,
+ aom_reader *r) {
+ const MODE_INFO *const mi = xd->mi[0];
+ const MB_MODE_INFO *const mbmi = &mi->mbmi;
+ uint8_t color_order[PALETTE_MAX_SIZE];
+ const int n = mbmi->palette_mode_info.palette_size[plane];
+ int i, j;
+ uint8_t *const color_map = xd->plane[plane].color_index_map;
+ const aom_prob(
+ *const prob)[PALETTE_COLOR_INDEX_CONTEXTS][PALETTE_COLORS - 1] =
+ plane ? av1_default_palette_uv_color_index_prob
+ : av1_default_palette_y_color_index_prob;
+ int plane_block_width, plane_block_height, rows, cols;
+ av1_get_block_dimensions(mbmi->sb_type, plane, xd, &plane_block_width,
+ &plane_block_height, &rows, &cols);
+ assert(plane == 0 || plane == 1);
+
+#if CONFIG_PALETTE_THROUGHPUT
+ // Run wavefront on the palette map index decoding.
+ for (i = 1; i < rows + cols - 1; ++i) {
+ for (j = AOMMIN(i, cols - 1); j >= AOMMAX(0, i - rows + 1); --j) {
+ const int color_ctx = av1_get_palette_color_index_context(
+ color_map, plane_block_width, (i - j), j, n, color_order, NULL);
+ const int color_idx =
+ aom_read_tree(r, av1_palette_color_index_tree[n - 2],
+ prob[n - 2][color_ctx], ACCT_STR);
+ assert(color_idx >= 0 && color_idx < n);
+ color_map[(i - j) * plane_block_width + j] = color_order[color_idx];
+ }
+ }
+ // Copy last column to extra columns.
+ if (cols < plane_block_width) {
+ for (i = 0; i < plane_block_height; ++i) {
+ memset(color_map + i * plane_block_width + cols,
+ color_map[i * plane_block_width + cols - 1],
+ (plane_block_width - cols));
+ }
+ }
+#else
+ for (i = 0; i < rows; ++i) {
+ for (j = (i == 0 ? 1 : 0); j < cols; ++j) {
+ const int color_ctx = av1_get_palette_color_index_context(
+ color_map, plane_block_width, i, j, n, color_order, NULL);
+ const int color_idx =
+ aom_read_tree(r, av1_palette_color_index_tree[n - PALETTE_MIN_SIZE],
+ prob[n - PALETTE_MIN_SIZE][color_ctx], ACCT_STR);
+ assert(color_idx >= 0 && color_idx < n);
+ color_map[i * plane_block_width + j] = color_order[color_idx];
+ }
+ memset(color_map + i * plane_block_width + cols,
+ color_map[i * plane_block_width + cols - 1],
+ (plane_block_width - cols)); // Copy last column to extra columns.
+ }
+#endif // CONFIG_PALETTE_THROUGHPUT
+ // Copy last row to extra rows.
+ for (i = rows; i < plane_block_height; ++i) {
+ memcpy(color_map + i * plane_block_width,
+ color_map + (rows - 1) * plane_block_width, plane_block_width);
+ }
+}
+#endif // CONFIG_PALETTE
+
+#if !CONFIG_PVQ || CONFIG_VAR_TX
+int av1_decode_block_tokens(AV1_COMMON *cm, MACROBLOCKD *const xd, int plane,
+ const SCAN_ORDER *sc, int x, int y, TX_SIZE tx_size,
+ TX_TYPE tx_type, int16_t *max_scan_line,
+ aom_reader *r, int seg_id) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ const int16_t *const dequant = pd->seg_dequant[seg_id];
+ const int ctx =
+ get_entropy_context(tx_size, pd->above_context + x, pd->left_context + y);
+#if CONFIG_NEW_QUANT
+ const int ref = is_inter_block(&xd->mi[0]->mbmi);
+ int dq =
+ get_dq_profile_from_ctx(xd->qindex[seg_id], ctx, ref, pd->plane_type);
+#endif // CONFIG_NEW_QUANT
+
+ const int eob =
+ decode_coefs(xd, pd->plane_type, pd->dqcoeff, tx_size, tx_type, dequant,
+#if CONFIG_NEW_QUANT
+ pd->seg_dequant_nuq[seg_id][dq],
+#endif // CONFIG_NEW_QUANT
+#if CONFIG_AOM_QM
+ pd->seg_iqmatrix[seg_id],
+#endif // CONFIG_AOM_QM
+ ctx, sc->scan, sc->neighbors, max_scan_line, r);
+ av1_set_contexts(xd, pd, plane, tx_size, eob > 0, x, y);
+#if CONFIG_ADAPT_SCAN
+ if (xd->counts)
+ av1_update_scan_count_facade(cm, xd->counts, tx_size, tx_type, pd->dqcoeff,
+ eob);
+#else
+ (void)cm;
+#endif
+ return eob;
+}
+#endif // !CONFIG_PVQ
diff --git a/third_party/aom/av1/decoder/detokenize.h b/third_party/aom/av1/decoder/detokenize.h
new file mode 100644
index 000000000..ba4066603
--- /dev/null
+++ b/third_party/aom/av1/decoder/detokenize.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DETOKENIZE_H_
+#define AV1_DECODER_DETOKENIZE_H_
+
+#include "./aom_config.h"
+#if !CONFIG_PVQ || CONFIG_VAR_TX
+#include "av1/decoder/decoder.h"
+#include "av1/common/scan.h"
+#endif // !CONFIG_PVQ
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_PALETTE
+void av1_decode_palette_tokens(MACROBLOCKD *const xd, int plane, aom_reader *r);
+#endif // CONFIG_PALETTE
+
+#if !CONFIG_PVQ || CONFIG_VAR_TX
+int av1_decode_block_tokens(AV1_COMMON *cm, MACROBLOCKD *const xd, int plane,
+ const SCAN_ORDER *sc, int x, int y, TX_SIZE tx_size,
+ TX_TYPE tx_type, int16_t *max_scan_line,
+ aom_reader *r, int seg_id);
+#endif // !CONFIG_PVQ
+#ifdef __cplusplus
+} // extern "C"
+#endif
+#endif // AV1_DECODER_DETOKENIZE_H_
diff --git a/third_party/aom/av1/decoder/dsubexp.c b/third_party/aom/av1/decoder/dsubexp.c
new file mode 100644
index 000000000..5171f1144
--- /dev/null
+++ b/third_party/aom/av1/decoder/dsubexp.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+
+#include "av1/common/entropy.h"
+
+#include "av1/decoder/dsubexp.h"
+
+static int inv_recenter_nonneg(int v, int m) {
+ if (v > 2 * m) return v;
+
+ return (v & 1) ? m - ((v + 1) >> 1) : m + (v >> 1);
+}
+
+#define decode_uniform(r, ACCT_STR_NAME) \
+ decode_uniform_(r ACCT_STR_ARG(ACCT_STR_NAME))
+#define decode_term_subexp(r, ACCT_STR_NAME) \
+ decode_term_subexp_(r ACCT_STR_ARG(ACCT_STR_NAME))
+
+static int decode_uniform_(aom_reader *r ACCT_STR_PARAM) {
+ const int l = 8;
+ const int m = (1 << l) - 190;
+ const int v = aom_read_literal(r, l - 1, ACCT_STR_NAME);
+ return v < m ? v : (v << 1) - m + aom_read_bit(r, ACCT_STR_NAME);
+}
+
+static int inv_remap_prob(int v, int m) {
+ /* clang-format off */
+ static uint8_t inv_map_table[MAX_PROB - 1] = {
+ 7, 20, 33, 46, 59, 72, 85, 98, 111, 124, 137, 150, 163, 176, 189,
+ 202, 215, 228, 241, 254, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11,
+ 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60,
+ 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76,
+ 77, 78, 79, 80, 81, 82, 83, 84, 86, 87, 88, 89, 90, 91, 92,
+ 93, 94, 95, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
+ 109, 110, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 125,
+ 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 138, 139, 140, 141,
+ 142, 143, 144, 145, 146, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157,
+ 158, 159, 160, 161, 162, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173,
+ 174, 175, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 190,
+ 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 203, 204, 205, 206,
+ 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219, 220, 221, 222,
+ 223, 224, 225, 226, 227, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238,
+ 239, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253
+ }; /* clang-format on */
+ assert(v < (int)(sizeof(inv_map_table) / sizeof(inv_map_table[0])));
+ v = inv_map_table[v];
+ m--;
+ if ((m << 1) <= MAX_PROB) {
+ return 1 + inv_recenter_nonneg(v, m);
+ } else {
+ return MAX_PROB - inv_recenter_nonneg(v, MAX_PROB - 1 - m);
+ }
+}
+
+static int decode_term_subexp_(aom_reader *r ACCT_STR_PARAM) {
+ if (!aom_read_bit(r, ACCT_STR_NAME))
+ return aom_read_literal(r, 4, ACCT_STR_NAME);
+ if (!aom_read_bit(r, ACCT_STR_NAME))
+ return aom_read_literal(r, 4, ACCT_STR_NAME) + 16;
+ if (!aom_read_bit(r, ACCT_STR_NAME))
+ return aom_read_literal(r, 5, ACCT_STR_NAME) + 32;
+ return decode_uniform(r, ACCT_STR_NAME) + 64;
+}
+
+void av1_diff_update_prob_(aom_reader *r, aom_prob *p ACCT_STR_PARAM) {
+ if (aom_read(r, DIFF_UPDATE_PROB, ACCT_STR_NAME)) {
+ const int delp = decode_term_subexp(r, ACCT_STR_NAME);
+ *p = (aom_prob)inv_remap_prob(delp, *p);
+ }
+}
diff --git a/third_party/aom/av1/decoder/dsubexp.h b/third_party/aom/av1/decoder/dsubexp.h
new file mode 100644
index 000000000..4bc38578c
--- /dev/null
+++ b/third_party/aom/av1/decoder/dsubexp.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DSUBEXP_H_
+#define AV1_DECODER_DSUBEXP_H_
+
+#include "aom_dsp/bitreader.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if CONFIG_ACCOUNTING
+#define av1_diff_update_prob(r, p, str) av1_diff_update_prob_(r, p, str)
+#else
+#define av1_diff_update_prob(r, p, str) av1_diff_update_prob_(r, p)
+#endif
+
+void av1_diff_update_prob_(aom_reader *r, aom_prob *p ACCT_STR_PARAM);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+#endif // AV1_DECODER_DSUBEXP_H_
diff --git a/third_party/aom/av1/decoder/dthread.c b/third_party/aom/av1/decoder/dthread.c
new file mode 100644
index 000000000..50f8ed192
--- /dev/null
+++ b/third_party/aom/av1/decoder/dthread.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "./aom_config.h"
+#include "aom_mem/aom_mem.h"
+#include "av1/common/reconinter.h"
+#include "av1/decoder/dthread.h"
+#include "av1/decoder/decoder.h"
+
+// #define DEBUG_THREAD
+
+// TODO(hkuang): Clean up all the #ifdef in this file.
+void av1_frameworker_lock_stats(AVxWorker *const worker) {
+#if CONFIG_MULTITHREAD
+ FrameWorkerData *const worker_data = worker->data1;
+ pthread_mutex_lock(&worker_data->stats_mutex);
+#else
+ (void)worker;
+#endif
+}
+
+void av1_frameworker_unlock_stats(AVxWorker *const worker) {
+#if CONFIG_MULTITHREAD
+ FrameWorkerData *const worker_data = worker->data1;
+ pthread_mutex_unlock(&worker_data->stats_mutex);
+#else
+ (void)worker;
+#endif
+}
+
+void av1_frameworker_signal_stats(AVxWorker *const worker) {
+#if CONFIG_MULTITHREAD
+ FrameWorkerData *const worker_data = worker->data1;
+
+// TODO(hkuang): Fix the pthread_cond_broadcast in windows wrapper.
+#if defined(_WIN32) && !HAVE_PTHREAD_H
+ pthread_cond_signal(&worker_data->stats_cond);
+#else
+ pthread_cond_broadcast(&worker_data->stats_cond);
+#endif
+
+#else
+ (void)worker;
+#endif
+}
+
+// This macro prevents thread_sanitizer from reporting known concurrent writes.
+#if defined(__has_feature)
+#if __has_feature(thread_sanitizer)
+#define BUILDING_WITH_TSAN
+#endif
+#endif
+
+// TODO(hkuang): Remove worker parameter as it is only used in debug code.
+void av1_frameworker_wait(AVxWorker *const worker, RefCntBuffer *const ref_buf,
+ int row) {
+#if CONFIG_MULTITHREAD
+ if (!ref_buf) return;
+
+#ifndef BUILDING_WITH_TSAN
+ // The following line of code will get harmless tsan error but it is the key
+ // to get best performance.
+ if (ref_buf->row >= row && ref_buf->buf.corrupted != 1) return;
+#endif
+
+ {
+ // Find the worker thread that owns the reference frame. If the reference
+ // frame has been fully decoded, it may not have owner.
+ AVxWorker *const ref_worker = ref_buf->frame_worker_owner;
+ FrameWorkerData *const ref_worker_data =
+ (FrameWorkerData *)ref_worker->data1;
+ const AV1Decoder *const pbi = ref_worker_data->pbi;
+
+#ifdef DEBUG_THREAD
+ {
+ FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
+ printf("%d %p worker is waiting for %d %p worker (%d) ref %d \r\n",
+ worker_data->worker_id, worker, ref_worker_data->worker_id,
+ ref_buf->frame_worker_owner, row, ref_buf->row);
+ }
+#endif
+
+ av1_frameworker_lock_stats(ref_worker);
+ while (ref_buf->row < row && pbi->cur_buf == ref_buf &&
+ ref_buf->buf.corrupted != 1) {
+ pthread_cond_wait(&ref_worker_data->stats_cond,
+ &ref_worker_data->stats_mutex);
+ }
+
+ if (ref_buf->buf.corrupted == 1) {
+ FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
+ av1_frameworker_unlock_stats(ref_worker);
+ aom_internal_error(&worker_data->pbi->common.error,
+ AOM_CODEC_CORRUPT_FRAME,
+ "Worker %p failed to decode frame", worker);
+ }
+ av1_frameworker_unlock_stats(ref_worker);
+ }
+#else
+ (void)worker;
+ (void)ref_buf;
+ (void)row;
+ (void)ref_buf;
+#endif // CONFIG_MULTITHREAD
+}
+
+void av1_frameworker_broadcast(RefCntBuffer *const buf, int row) {
+#if CONFIG_MULTITHREAD
+ AVxWorker *worker = buf->frame_worker_owner;
+
+#ifdef DEBUG_THREAD
+ {
+ FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
+ printf("%d %p worker decode to (%d) \r\n", worker_data->worker_id,
+ buf->frame_worker_owner, row);
+ }
+#endif
+
+ av1_frameworker_lock_stats(worker);
+ buf->row = row;
+ av1_frameworker_signal_stats(worker);
+ av1_frameworker_unlock_stats(worker);
+#else
+ (void)buf;
+ (void)row;
+#endif // CONFIG_MULTITHREAD
+}
+
+void av1_frameworker_copy_context(AVxWorker *const dst_worker,
+ AVxWorker *const src_worker) {
+#if CONFIG_MULTITHREAD
+ FrameWorkerData *const src_worker_data = (FrameWorkerData *)src_worker->data1;
+ FrameWorkerData *const dst_worker_data = (FrameWorkerData *)dst_worker->data1;
+ AV1_COMMON *const src_cm = &src_worker_data->pbi->common;
+ AV1_COMMON *const dst_cm = &dst_worker_data->pbi->common;
+ int i;
+
+ // Wait until source frame's context is ready.
+ av1_frameworker_lock_stats(src_worker);
+ while (!src_worker_data->frame_context_ready) {
+ pthread_cond_wait(&src_worker_data->stats_cond,
+ &src_worker_data->stats_mutex);
+ }
+
+ dst_cm->last_frame_seg_map = src_cm->seg.enabled
+ ? src_cm->current_frame_seg_map
+ : src_cm->last_frame_seg_map;
+ dst_worker_data->pbi->need_resync = src_worker_data->pbi->need_resync;
+ av1_frameworker_unlock_stats(src_worker);
+
+ dst_cm->bit_depth = src_cm->bit_depth;
+#if CONFIG_HIGHBITDEPTH
+ dst_cm->use_highbitdepth = src_cm->use_highbitdepth;
+#endif
+#if CONFIG_EXT_REFS
+// TODO(zoeliu): To handle parallel decoding
+#endif // CONFIG_EXT_REFS
+ dst_cm->prev_frame =
+ src_cm->show_existing_frame ? src_cm->prev_frame : src_cm->cur_frame;
+ dst_cm->last_width =
+ !src_cm->show_existing_frame ? src_cm->width : src_cm->last_width;
+ dst_cm->last_height =
+ !src_cm->show_existing_frame ? src_cm->height : src_cm->last_height;
+ dst_cm->subsampling_x = src_cm->subsampling_x;
+ dst_cm->subsampling_y = src_cm->subsampling_y;
+ dst_cm->frame_type = src_cm->frame_type;
+ dst_cm->last_show_frame = !src_cm->show_existing_frame
+ ? src_cm->show_frame
+ : src_cm->last_show_frame;
+ for (i = 0; i < REF_FRAMES; ++i)
+ dst_cm->ref_frame_map[i] = src_cm->next_ref_frame_map[i];
+
+ memcpy(dst_cm->lf_info.lfthr, src_cm->lf_info.lfthr,
+ (MAX_LOOP_FILTER + 1) * sizeof(loop_filter_thresh));
+ dst_cm->lf.last_sharpness_level = src_cm->lf.sharpness_level;
+ dst_cm->lf.filter_level = src_cm->lf.filter_level;
+ memcpy(dst_cm->lf.ref_deltas, src_cm->lf.ref_deltas, TOTAL_REFS_PER_FRAME);
+ memcpy(dst_cm->lf.mode_deltas, src_cm->lf.mode_deltas, MAX_MODE_LF_DELTAS);
+ dst_cm->seg = src_cm->seg;
+ memcpy(dst_cm->frame_contexts, src_cm->frame_contexts,
+ FRAME_CONTEXTS * sizeof(dst_cm->frame_contexts[0]));
+#else
+ (void)dst_worker;
+ (void)src_worker;
+#endif // CONFIG_MULTITHREAD
+}
diff --git a/third_party/aom/av1/decoder/dthread.h b/third_party/aom/av1/decoder/dthread.h
new file mode 100644
index 000000000..c17053d9c
--- /dev/null
+++ b/third_party/aom/av1/decoder/dthread.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AV1_DECODER_DTHREAD_H_
+#define AV1_DECODER_DTHREAD_H_
+
+#include "./aom_config.h"
+#include "aom_util/aom_thread.h"
+#include "aom/internal/aom_codec_internal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1Common;
+struct AV1Decoder;
+
+// WorkerData for the FrameWorker thread. It contains all the information of
+// the worker and decode structures for decoding a frame.
+typedef struct FrameWorkerData {
+ struct AV1Decoder *pbi;
+ const uint8_t *data;
+ const uint8_t *data_end;
+ size_t data_size;
+ void *user_priv;
+ int result;
+ int worker_id;
+ int received_frame;
+
+ // scratch_buffer is used in frame parallel mode only.
+ // It is used to make a copy of the compressed data.
+ uint8_t *scratch_buffer;
+ size_t scratch_buffer_size;
+
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t stats_mutex;
+ pthread_cond_t stats_cond;
+#endif
+
+ int frame_context_ready; // Current frame's context is ready to read.
+ int frame_decoded; // Finished decoding current frame.
+} FrameWorkerData;
+
+void av1_frameworker_lock_stats(AVxWorker *const worker);
+void av1_frameworker_unlock_stats(AVxWorker *const worker);
+void av1_frameworker_signal_stats(AVxWorker *const worker);
+
+// Wait until ref_buf has been decoded to row in real pixel unit.
+// Note: worker may already finish decoding ref_buf and release it in order to
+// start decoding next frame. So need to check whether worker is still decoding
+// ref_buf.
+void av1_frameworker_wait(AVxWorker *const worker, RefCntBuffer *const ref_buf,
+ int row);
+
+// FrameWorker broadcasts its decoding progress so other workers that are
+// waiting on it can resume decoding.
+void av1_frameworker_broadcast(RefCntBuffer *const buf, int row);
+
+// Copy necessary decoding context from src worker to dst worker.
+void av1_frameworker_copy_context(AVxWorker *const dst_worker,
+ AVxWorker *const src_worker);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AV1_DECODER_DTHREAD_H_
diff --git a/third_party/aom/av1/decoder/generic_decoder.c b/third_party/aom/av1/decoder/generic_decoder.c
new file mode 100644
index 000000000..0c7d71b9f
--- /dev/null
+++ b/third_party/aom/av1/decoder/generic_decoder.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* clang-format off */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+
+#include "aom_dsp/bitreader.h"
+#include "av1/common/generic_code.h"
+#include "av1/common/odintrin.h"
+#include "pvq_decoder.h"
+
+/** Decodes a value from 0 to N-1 (with N up to 16) based on a cdf and adapts
+ * the cdf accordingly.
+ *
+ * @param [in,out] r multi-symbol entropy decoder
+ * @param [in,out] cdf CDF of the variable (Q15)
+ * @param [in] n number of values possible
+ * @param [in,out] count number of symbols encoded with that cdf so far
+ * @param [in] rate adaptation rate shift (smaller is faster)
+ * @return decoded variable
+ */
+int aom_decode_cdf_adapt_q15_(aom_reader *r, uint16_t *cdf, int n,
+ int *count, int rate ACCT_STR_PARAM) {
+ int val;
+ int i;
+ if (*count == 0) {
+ int ft;
+ ft = cdf[n - 1];
+ for (i = 0; i < n; i++) {
+ cdf[i] = AOM_ICDF(cdf[i]*32768/ft);
+ }
+ }
+ val = aom_read_cdf(r, cdf, n, ACCT_STR_NAME);
+ aom_cdf_adapt_q15(val, cdf, n, count, rate);
+ return val;
+}
+
+/** Encodes a random variable using a "generic" model, assuming that the
+ * distribution is one-sided (zero and up), has a single mode, and decays
+ * exponentially past the model.
+ *
+ * @param [in,out] r multi-symbol entropy decoder
+ * @param [in,out] model generic probability model
+ * @param [in] x variable being encoded
+ * @param [in,out] ExQ16 expectation of x (adapted)
+ * @param [in] integration integration period of ExQ16 (leaky average over
+ * 1<<integration samples)
+ *
+ * @retval decoded variable x
+ */
+int generic_decode_(aom_reader *r, generic_encoder *model,
+ int *ex_q16, int integration ACCT_STR_PARAM) {
+ int lg_q1;
+ int shift;
+ int id;
+ uint16_t *cdf;
+ int xs;
+ int lsb;
+ int x;
+ lsb = 0;
+ lg_q1 = log_ex(*ex_q16);
+ /* If expectation is too large, shift x to ensure that
+ all we have past xs=15 is the exponentially decaying tail
+ of the distribution. */
+ shift = OD_MAXI(0, (lg_q1 - 5) >> 1);
+ /* Choose the cdf to use: we have two per "octave" of ExQ16. */
+ id = OD_MINI(GENERIC_TABLES - 1, lg_q1);
+ cdf = model->cdf[id];
+ xs = aom_read_symbol_pvq(r, cdf, 16, ACCT_STR_NAME);
+ if (xs == 15) {
+ int e;
+ unsigned decay;
+ /* Estimate decay based on the assumption that the distribution is close
+ to Laplacian for large values. We should probably have an adaptive
+ estimate instead. Note: The 2* is a kludge that's not fully understood
+ yet. */
+ OD_ASSERT(*ex_q16 < INT_MAX >> 1);
+ e = ((2**ex_q16 >> 8) + (1 << shift >> 1)) >> shift;
+ decay = OD_MAXI(2, OD_MINI(254, 256*e/(e + 256)));
+ xs += aom_laplace_decode_special(r, decay, ACCT_STR_NAME);
+ }
+ if (shift != 0) {
+ int special;
+ /* Because of the rounding, there's only half the number of possibilities
+ for xs=0 */
+ special = xs == 0;
+ if (shift - special > 0) {
+ lsb = aom_read_literal(r, shift - special, ACCT_STR_NAME);
+ }
+ lsb -= !special << (shift - 1);
+ }
+ x = (xs << shift) + lsb;
+ generic_model_update(ex_q16, x, integration);
+ OD_LOG((OD_LOG_ENTROPY_CODER, OD_LOG_DEBUG,
+ "dec: %d %d %d %d %d %x", *ex_q16, x, shift, id, xs, dec->rng));
+ return x;
+}
diff --git a/third_party/aom/av1/decoder/inspection.c b/third_party/aom/av1/decoder/inspection.c
new file mode 100644
index 000000000..2e8a61087
--- /dev/null
+++ b/third_party/aom/av1/decoder/inspection.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+#include "av1/decoder/decoder.h"
+#include "av1/decoder/inspection.h"
+#include "av1/common/enums.h"
+#if CONFIG_CDEF
+#include "av1/common/cdef.h"
+#endif
+
+void ifd_init(insp_frame_data *fd, int frame_width, int frame_height) {
+ fd->mi_cols = ALIGN_POWER_OF_TWO(frame_width, 3) >> MI_SIZE_LOG2;
+ fd->mi_rows = ALIGN_POWER_OF_TWO(frame_height, 3) >> MI_SIZE_LOG2;
+ fd->mi_grid = (insp_mi_data *)aom_malloc(sizeof(insp_mi_data) * fd->mi_rows *
+ fd->mi_cols);
+}
+
+void ifd_clear(insp_frame_data *fd) {
+ aom_free(fd->mi_grid);
+ fd->mi_grid = NULL;
+}
+
+/* TODO(negge) This function may be called by more than one thread when using
+ a multi-threaded decoder and this may cause a data race. */
+int ifd_inspect(insp_frame_data *fd, void *decoder) {
+ struct AV1Decoder *pbi = (struct AV1Decoder *)decoder;
+ AV1_COMMON *const cm = &pbi->common;
+ // TODO(negge): Should this function just call ifd_clear() and ifd_init()?
+ if (fd->mi_rows != cm->mi_rows || fd->mi_cols != cm->mi_cols) {
+ return 0;
+ }
+ fd->show_frame = cm->show_frame;
+ fd->frame_type = cm->frame_type;
+ fd->base_qindex = cm->base_qindex;
+ fd->tile_mi_cols = cm->tile_width;
+ fd->tile_mi_rows = cm->tile_height;
+#if CONFIG_ACCOUNTING
+ fd->accounting = &pbi->accounting;
+#endif
+#if CONFIG_CDEF
+// TODO(negge): copy per frame CDEF data
+#endif
+ int i, j;
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ for (j = 0; j < 2; j++) {
+ fd->y_dequant[i][j] = cm->y_dequant[i][j];
+ fd->uv_dequant[i][j] = cm->uv_dequant[i][j];
+ }
+ }
+ for (j = 0; j < cm->mi_rows; j++) {
+ for (i = 0; i < cm->mi_cols; i++) {
+ const MB_MODE_INFO *mbmi =
+ &cm->mi_grid_visible[j * cm->mi_stride + i]->mbmi;
+ insp_mi_data *mi = &fd->mi_grid[j * cm->mi_cols + i];
+ // Segment
+ mi->segment_id = mbmi->segment_id;
+ // Motion Vectors
+ mi->mv[0].row = mbmi->mv[0].as_mv.row;
+ mi->mv[0].col = mbmi->mv[0].as_mv.col;
+ mi->mv[1].row = mbmi->mv[1].as_mv.row;
+ mi->mv[1].col = mbmi->mv[1].as_mv.col;
+ // Reference Frames
+ mi->ref_frame[0] = mbmi->ref_frame[0];
+ mi->ref_frame[1] = mbmi->ref_frame[1];
+ // Prediction Mode
+ mi->mode = mbmi->mode;
+ // Prediction Mode for Chromatic planes
+ if (mi->mode < INTRA_MODES) {
+ mi->uv_mode = mbmi->uv_mode;
+ } else {
+ mi->uv_mode = INTRA_INVALID;
+ }
+ // Block Size
+ mi->sb_type = mbmi->sb_type;
+ // Skip Flag
+ mi->skip = mbmi->skip;
+#if CONFIG_DUAL_FILTER
+ mi->filter[0] = mbmi->interp_filter[0];
+ mi->filter[1] = mbmi->interp_filter[1];
+#else
+ mi->filter = mbmi->interp_filter;
+#endif
+ // Transform
+ mi->tx_type = mbmi->tx_type;
+ mi->tx_size = mbmi->tx_size;
+
+#if CONFIG_CDEF
+ mi->cdef_level = cm->cdef_strengths[mbmi->cdef_strength] / CLPF_STRENGTHS;
+ mi->cdef_strength =
+ cm->cdef_strengths[mbmi->cdef_strength] % CLPF_STRENGTHS;
+ mi->cdef_strength += mi->cdef_strength == 3;
+#endif
+ }
+ }
+ return 1;
+}
diff --git a/third_party/aom/av1/decoder/inspection.h b/third_party/aom/av1/decoder/inspection.h
new file mode 100644
index 000000000..d6cf4319a
--- /dev/null
+++ b/third_party/aom/av1/decoder/inspection.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+#ifndef AOM_INSPECTION_H_
+#define AOM_INSPECTION_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#if CONFIG_ACCOUNTING
+#include "av1/decoder/accounting.h"
+#endif
+
+typedef void (*aom_inspect_cb)(void *decoder, void *data);
+
+typedef struct insp_mv insp_mv;
+
+struct insp_mv {
+ int16_t row;
+ int16_t col;
+};
+
+typedef struct insp_mi_data insp_mi_data;
+
+struct insp_mi_data {
+ insp_mv mv[2];
+ int8_t ref_frame[2];
+ int8_t mode;
+ int8_t uv_mode;
+ int8_t sb_type;
+ int8_t skip;
+ int8_t segment_id;
+#if CONFIG_DUAL_FILTER
+ int8_t filter[2];
+#else
+ int8_t filter;
+#endif
+ int8_t tx_type;
+ int8_t tx_size;
+#if CONFIG_CDEF
+ int8_t cdef_level;
+ int8_t cdef_strength;
+#endif
+};
+
+typedef struct insp_frame_data insp_frame_data;
+
+struct insp_frame_data {
+#if CONFIG_ACCOUNTING
+ Accounting *accounting;
+#endif
+ insp_mi_data *mi_grid;
+ int show_frame;
+ int frame_type;
+ int base_qindex;
+ int mi_rows;
+ int mi_cols;
+ int tile_mi_rows;
+ int tile_mi_cols;
+ int16_t y_dequant[MAX_SEGMENTS][2];
+ int16_t uv_dequant[MAX_SEGMENTS][2];
+#if CONFIG_CDEF
+// TODO(negge): add per frame CDEF data
+#endif
+};
+
+void ifd_init(insp_frame_data *fd, int frame_width, int frame_height);
+void ifd_clear(insp_frame_data *fd);
+int ifd_inspect(insp_frame_data *fd, void *decoder);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+#endif // AOM_INSPECTION_H_
diff --git a/third_party/aom/av1/decoder/laplace_decoder.c b/third_party/aom/av1/decoder/laplace_decoder.c
new file mode 100644
index 000000000..b6cf50bc7
--- /dev/null
+++ b/third_party/aom/av1/decoder/laplace_decoder.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+/* clang-format off */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+
+#include "aom_dsp/bitreader.h"
+#include "av1/common/pvq.h"
+#include "pvq_decoder.h"
+
+#define aom_decode_pvq_split(r, adapt, sum, ctx, ACCT_STR_NAME) \
+ aom_decode_pvq_split_(r, adapt, sum, ctx ACCT_STR_ARG(ACCT_STR_NAME))
+
+static int aom_decode_pvq_split_(aom_reader *r, od_pvq_codeword_ctx *adapt,
+ int sum, int ctx ACCT_STR_PARAM) {
+ int shift;
+ int count;
+ int msbs;
+ int fctx;
+ count = 0;
+ if (sum == 0) return 0;
+ shift = OD_MAXI(0, OD_ILOG(sum) - 3);
+ fctx = 7*ctx + (sum >> shift) - 1;
+ msbs = aom_read_symbol_pvq(r, adapt->pvq_split_cdf[fctx], (sum >> shift) + 1,
+ ACCT_STR_NAME);
+ if (shift) count = aom_read_literal(r, shift, ACCT_STR_NAME);
+ count += msbs << shift;
+ if (count > sum) {
+ count = sum;
+#if CONFIG_DAALA_EC
+ r->ec.error = 1;
+#else
+# error "CONFIG_PVQ currently requires CONFIG_DAALA_EC."
+#endif
+ }
+ return count;
+}
+
+void aom_decode_band_pvq_splits(aom_reader *r, od_pvq_codeword_ctx *adapt,
+ od_coeff *y, int n, int k, int level) {
+ int mid;
+ int count_right;
+ if (n == 1) {
+ y[0] = k;
+ }
+ else if (k == 0) {
+ OD_CLEAR(y, n);
+ }
+ else if (k == 1 && n <= 16) {
+ int cdf_id;
+ int pos;
+ cdf_id = od_pvq_k1_ctx(n, level == 0);
+ OD_CLEAR(y, n);
+ pos = aom_read_symbol_pvq(r, adapt->pvq_k1_cdf[cdf_id], n, "pvq:k1");
+ y[pos] = 1;
+ }
+ else {
+ mid = n >> 1;
+ count_right = aom_decode_pvq_split(r, adapt, k, od_pvq_size_ctx(n),
+ "pvq:split");
+ aom_decode_band_pvq_splits(r, adapt, y, mid, k - count_right, level + 1);
+ aom_decode_band_pvq_splits(r, adapt, y + mid, n - mid, count_right,
+ level + 1);
+ }
+}
+
+/** Decodes the tail of a Laplace-distributed variable, i.e. it doesn't
+ * do anything special for the zero case.
+ *
+ * @param [dec] range decoder
+ * @param [decay] decay factor of the distribution, i.e. pdf ~= decay^x
+ *
+ * @retval decoded variable x
+ */
+int aom_laplace_decode_special_(aom_reader *r, unsigned decay ACCT_STR_PARAM) {
+ int pos;
+ int shift;
+ int xs;
+ int sym;
+ const uint16_t *cdf;
+ shift = 0;
+ /* We don't want a large decay value because that would require too many
+ symbols. */
+ while (decay > 235) {
+ decay = (decay*decay + 128) >> 8;
+ shift++;
+ }
+ decay = OD_MINI(decay, 254);
+ decay = OD_MAXI(decay, 2);
+ cdf = EXP_CDF_TABLE[(decay + 1) >> 1];
+ OD_LOG((OD_LOG_PVQ, OD_LOG_DEBUG, "decay = %d\n", decay));
+ xs = 0;
+ do {
+ sym = OD_MINI(xs, 15);
+ {
+ int i;
+ OD_LOG((OD_LOG_PVQ, OD_LOG_DEBUG, "%d %d %d", xs, shift, sym));
+ for (i = 0; i < 16; i++) {
+ OD_LOG_PARTIAL((OD_LOG_PVQ, OD_LOG_DEBUG, "%d ", cdf[i]));
+ }
+ OD_LOG_PARTIAL((OD_LOG_PVQ, OD_LOG_DEBUG, "\n"));
+ }
+ sym = aom_read_cdf(r, cdf, 16, ACCT_STR_NAME);
+ xs += sym;
+ } while (sym >= 15);
+ if (shift) pos = (xs << shift) + aom_read_literal(r, shift, ACCT_STR_NAME);
+ else pos = xs;
+ return pos;
+}
diff --git a/third_party/aom/av1/decoder/pvq_decoder.c b/third_party/aom/av1/decoder/pvq_decoder.c
new file mode 100644
index 000000000..d9a8e8056
--- /dev/null
+++ b/third_party/aom/av1/decoder/pvq_decoder.c
@@ -0,0 +1,378 @@
+/*
+ * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* clang-format off */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "./aom_config.h"
+#include "aom_dsp/bitreader.h"
+#include "aom_dsp/entcode.h"
+#include "aom_dsp/entdec.h"
+#include "av1/common/odintrin.h"
+#include "av1/common/partition.h"
+#include "av1/common/pvq_state.h"
+#include "av1/decoder/decint.h"
+#include "av1/decoder/pvq_decoder.h"
+#include "aom_ports/system_state.h"
+
+int aom_read_symbol_pvq_(aom_reader *r, aom_cdf_prob *cdf, int nsymbs
+ ACCT_STR_PARAM) {
+ if (cdf[0] == 0)
+ aom_cdf_init_q15_1D(cdf, nsymbs, CDF_SIZE(nsymbs));
+ return aom_read_symbol(r, cdf, nsymbs, ACCT_STR_NAME);
+}
+
+static void aom_decode_pvq_codeword(aom_reader *r, od_pvq_codeword_ctx *ctx,
+ od_coeff *y, int n, int k) {
+ int i;
+ aom_decode_band_pvq_splits(r, ctx, y, n, k, 0);
+ for (i = 0; i < n; i++) {
+ if (y[i] && aom_read_bit(r, "pvq:sign")) y[i] = -y[i];
+ }
+}
+
+/** Inverse of neg_interleave; decodes the interleaved gain.
+ *
+ * @param [in] x quantized/interleaved gain to decode
+ * @param [in] ref quantized gain of the reference
+ * @return original quantized gain value
+ */
+static int neg_deinterleave(int x, int ref) {
+ if (x < 2*ref-1) {
+ if (x & 1) return ref - 1 - (x >> 1);
+ else return ref + (x >> 1);
+ }
+ else return x+1;
+}
+
+/** Synthesizes one parition of coefficient values from a PVQ-encoded
+ * vector.
+ *
+ * @param [out] xcoeff output coefficient partition (x in math doc)
+ * @param [in] ypulse PVQ-encoded values (y in math doc); in the noref
+ * case, this vector has n entries, in the
+ * reference case it contains n-1 entries
+ * (the m-th entry is not included)
+ * @param [in] ref reference vector (prediction)
+ * @param [in] n number of elements in this partition
+ * @param [in] gr gain of the reference vector (prediction)
+ * @param [in] noref indicates presence or lack of prediction
+ * @param [in] g decoded quantized vector gain
+ * @param [in] theta decoded theta (prediction error)
+ * @param [in] qm QM with magnitude compensation
+ * @param [in] qm_inv Inverse of QM with magnitude compensation
+ */
+static void pvq_synthesis(od_coeff *xcoeff, od_coeff *ypulse, od_val16 *r16,
+ int n, od_val32 gr, int noref, od_val32 g, od_val32 theta, const int16_t *qm_inv,
+ int shift) {
+ int s;
+ int m;
+ /* Sign of the Householder reflection vector */
+ s = 0;
+ /* Direction of the Householder reflection vector */
+ m = noref ? 0 : od_compute_householder(r16, n, gr, &s, shift);
+ od_pvq_synthesis_partial(xcoeff, ypulse, r16, n, noref, g, theta, m, s,
+ qm_inv);
+}
+
+typedef struct {
+ od_coeff *ref;
+ int nb_coeffs;
+ int allow_flip;
+} cfl_ctx;
+
+/** Decodes a single vector of integers (eg, a partition within a
+ * coefficient block) encoded using PVQ
+ *
+ * @param [in,out] ec range encoder
+ * @param [in] q0 scale/quantizer
+ * @param [in] n number of coefficients in partition
+ * @param [in,out] model entropy decoder state
+ * @param [in,out] adapt adaptation context
+ * @param [in,out] exg ExQ16 expectation of decoded gain value
+ * @param [in,out] ext ExQ16 expectation of decoded theta value
+ * @param [in] ref 'reference' (prediction) vector
+ * @param [out] out decoded partition
+ * @param [out] noref boolean indicating absence of reference
+ * @param [in] beta per-band activity masking beta param
+ * @param [in] is_keyframe whether we're encoding a keyframe
+ * @param [in] pli plane index
+ * @param [in] cdf_ctx selects which cdf context to use
+ * @param [in,out] skip_rest whether to skip further bands in each direction
+ * @param [in] band index of the band being decoded
+ * @param [in] band index of the band being decoded
+ * @param [out] skip skip flag with range [0,1]
+ * @param [in] qm QM with magnitude compensation
+ * @param [in] qm_inv Inverse of QM with magnitude compensation
+ */
+static void pvq_decode_partition(aom_reader *r,
+ int q0,
+ int n,
+ generic_encoder model[3],
+ od_adapt_ctx *adapt,
+ int *exg,
+ int *ext,
+ od_coeff *ref,
+ od_coeff *out,
+ int *noref,
+ od_val16 beta,
+ int is_keyframe,
+ int pli,
+ int cdf_ctx,
+ cfl_ctx *cfl,
+ int has_skip,
+ int *skip_rest,
+ int band,
+ int *skip,
+ const int16_t *qm,
+ const int16_t *qm_inv) {
+ int k;
+ od_val32 qcg;
+ int itheta;
+ od_val32 theta;
+ od_val32 gr;
+ od_val32 gain_offset;
+ od_coeff y[MAXN];
+ int qg;
+ int id;
+ int i;
+ od_val16 ref16[MAXN];
+ int rshift;
+ theta = 0;
+ gr = 0;
+ gain_offset = 0;
+ /* Skip is per-direction. For band=0, we can use any of the flags. */
+ if (skip_rest[(band + 2) % 3]) {
+ qg = 0;
+ if (is_keyframe) {
+ itheta = -1;
+ *noref = 1;
+ }
+ else {
+ itheta = 0;
+ *noref = 0;
+ }
+ }
+ else {
+ /* Jointly decode gain, itheta and noref for small values. Then we handle
+ larger gain. */
+ id = aom_read_symbol_pvq(r, &adapt->pvq.pvq_gaintheta_cdf[cdf_ctx][0],
+ 8 + 7*has_skip, "pvq:gaintheta");
+ if (!is_keyframe && id >= 10) id++;
+ if (is_keyframe && id >= 8) id++;
+ if (id >= 8) {
+ id -= 8;
+ skip_rest[0] = skip_rest[1] = skip_rest[2] = 1;
+ }
+ qg = id & 1;
+ itheta = (id >> 1) - 1;
+ *noref = (itheta == -1);
+ }
+ /* The CfL flip bit is only decoded on the first band that has noref=0. */
+ if (cfl->allow_flip && !*noref) {
+ int flip;
+ flip = aom_read_bit(r, "cfl:flip");
+ if (flip) {
+ for (i = 0; i < cfl->nb_coeffs; i++) cfl->ref[i] = -cfl->ref[i];
+ }
+ cfl->allow_flip = 0;
+ }
+ if (qg > 0) {
+ int tmp;
+ tmp = *exg;
+ qg = 1 + generic_decode(r, &model[!*noref], &tmp, 2, "pvq:gain");
+ OD_IIR_DIADIC(*exg, qg << 16, 2);
+ }
+ *skip = 0;
+#if defined(OD_FLOAT_PVQ)
+ rshift = 0;
+#else
+ /* Shift needed to make the reference fit in 15 bits, so that the Householder
+ vector can fit in 16 bits. */
+ rshift = OD_MAXI(0, od_vector_log_mag(ref, n) - 14);
+#endif
+ for (i = 0; i < n; i++) {
+#if defined(OD_FLOAT_PVQ)
+ ref16[i] = ref[i]*(double)qm[i]*OD_QM_SCALE_1;
+#else
+ ref16[i] = OD_SHR_ROUND(ref[i]*qm[i], OD_QM_SHIFT + rshift);
+#endif
+ }
+ if(!*noref){
+ /* we have a reference; compute its gain */
+ od_val32 cgr;
+ int icgr;
+ int cfl_enabled;
+ cfl_enabled = pli != 0 && is_keyframe && !OD_DISABLE_CFL;
+ cgr = od_pvq_compute_gain(ref16, n, q0, &gr, beta, rshift);
+ if (cfl_enabled) cgr = OD_CGAIN_SCALE;
+#if defined(OD_FLOAT_PVQ)
+ icgr = (int)floor(.5 + cgr);
+#else
+ icgr = OD_SHR_ROUND(cgr, OD_CGAIN_SHIFT);
+#endif
+ /* quantized gain is interleave encoded when there's a reference;
+ deinterleave it now */
+ if (is_keyframe) qg = neg_deinterleave(qg, icgr);
+ else {
+ qg = neg_deinterleave(qg, icgr + 1) - 1;
+ if (qg == 0) *skip = (icgr ? OD_PVQ_SKIP_ZERO : OD_PVQ_SKIP_COPY);
+ }
+ if (qg == icgr && itheta == 0 && !cfl_enabled) *skip = OD_PVQ_SKIP_COPY;
+ gain_offset = cgr - OD_SHL(icgr, OD_CGAIN_SHIFT);
+ qcg = OD_SHL(qg, OD_CGAIN_SHIFT) + gain_offset;
+ /* read and decode first-stage PVQ error theta */
+ if (itheta > 1) {
+ int tmp;
+ tmp = *ext;
+ itheta = 2 + generic_decode(r, &model[2], &tmp, 2, "pvq:theta");
+ OD_IIR_DIADIC(*ext, itheta << 16, 2);
+ }
+ theta = od_pvq_compute_theta(itheta, od_pvq_compute_max_theta(qcg, beta));
+ }
+ else{
+ itheta = 0;
+ if (!is_keyframe) qg++;
+ qcg = OD_SHL(qg, OD_CGAIN_SHIFT);
+ if (qg == 0) *skip = OD_PVQ_SKIP_ZERO;
+ }
+
+ k = od_pvq_compute_k(qcg, itheta, *noref, n, beta);
+ if (k != 0) {
+ /* when noref==0, y is actually size n-1 */
+ aom_decode_pvq_codeword(r, &adapt->pvq.pvq_codeword_ctx, y,
+ n - !*noref, k);
+ }
+ else {
+ OD_CLEAR(y, n);
+ }
+ if (*skip) {
+ if (*skip == OD_PVQ_SKIP_COPY) OD_COPY(out, ref, n);
+ else OD_CLEAR(out, n);
+ }
+ else {
+ od_val32 g;
+ g = od_gain_expand(qcg, q0, beta);
+ pvq_synthesis(out, y, ref16, n, gr, *noref, g, theta, qm_inv, rshift);
+ }
+ /* If OD_PVQ_SKIP_ZERO or OD_PVQ_SKIP_COPY, set skip to 1 for visualization */
+ if (*skip) *skip = 1;
+}
+
+/** Decodes a coefficient block (except for DC) encoded using PVQ
+ *
+ * @param [in,out] dec daala decoder context
+ * @param [in] ref 'reference' (prediction) vector
+ * @param [out] out decoded partition
+ * @param [in] q0 quantizer
+ * @param [in] pli plane index
+ * @param [in] bs log of the block size minus two
+ * @param [in] beta per-band activity masking beta param
+ * @param [in] is_keyframe whether we're encoding a keyframe
+ * @param [out] flags bitmask of the per band skip and noref flags
+ * @param [in] ac_dc_coded skip flag for the block (range 0-3)
+ * @param [in] qm QM with magnitude compensation
+ * @param [in] qm_inv Inverse of QM with magnitude compensation
+ */
+void od_pvq_decode(daala_dec_ctx *dec,
+ od_coeff *ref,
+ od_coeff *out,
+ int q0,
+ int pli,
+ int bs,
+ const od_val16 *beta,
+ int is_keyframe,
+ unsigned int *flags,
+ PVQ_SKIP_TYPE ac_dc_coded,
+ const int16_t *qm,
+ const int16_t *qm_inv){
+
+ int noref[PVQ_MAX_PARTITIONS];
+ int skip[PVQ_MAX_PARTITIONS];
+ int *exg;
+ int *ext;
+ int nb_bands;
+ int i;
+ const int *off;
+ int size[PVQ_MAX_PARTITIONS];
+ generic_encoder *model;
+ int skip_rest[3] = {0};
+ cfl_ctx cfl;
+ const unsigned char *pvq_qm;
+ int use_masking;
+
+ aom_clear_system_state();
+
+ /*Default to skip=1 and noref=0 for all bands.*/
+ for (i = 0; i < PVQ_MAX_PARTITIONS; i++) {
+ noref[i] = 0;
+ skip[i] = 1;
+ }
+
+ use_masking = dec->use_activity_masking;
+
+ if (use_masking)
+ pvq_qm = &dec->state.pvq_qm_q4[pli][0];
+ else
+ pvq_qm = 0;
+
+ exg = &dec->state.adapt->pvq.pvq_exg[pli][bs][0];
+ ext = dec->state.adapt->pvq.pvq_ext + bs*PVQ_MAX_PARTITIONS;
+ model = dec->state.adapt->pvq.pvq_param_model;
+ nb_bands = OD_BAND_OFFSETS[bs][0];
+ off = &OD_BAND_OFFSETS[bs][1];
+ out[0] = ac_dc_coded & DC_CODED;
+ if (ac_dc_coded < AC_CODED) {
+ if (is_keyframe) for (i = 1; i < 1 << (2*bs + 4); i++) out[i] = 0;
+ else for (i = 1; i < 1 << (2*bs + 4); i++) out[i] = ref[i];
+ }
+ else {
+ for (i = 0; i < nb_bands; i++) size[i] = off[i+1] - off[i];
+ cfl.ref = ref;
+ cfl.nb_coeffs = off[nb_bands];
+ cfl.allow_flip = pli != 0 && is_keyframe;
+ for (i = 0; i < nb_bands; i++) {
+ int q;
+
+ if (use_masking)
+ q = OD_MAXI(1, q0 * pvq_qm[od_qm_get_index(bs, i + 1)] >> 4);
+ else
+ q = OD_MAXI(1, q0);
+
+ pvq_decode_partition(dec->r, q, size[i],
+ model, dec->state.adapt, exg + i, ext + i, ref + off[i], out + off[i],
+ &noref[i], beta[i], is_keyframe, pli,
+ (pli != 0)*OD_TXSIZES*PVQ_MAX_PARTITIONS + bs*PVQ_MAX_PARTITIONS + i,
+ &cfl, i == 0 && (i < nb_bands - 1), skip_rest, i, &skip[i],
+ qm + off[i], qm_inv + off[i]);
+ if (i == 0 && !skip_rest[0] && bs > 0) {
+ int skip_dir;
+ int j;
+ skip_dir = aom_read_symbol(dec->r,
+ &dec->state.adapt->pvq.pvq_skip_dir_cdf[(pli != 0) + 2*(bs - 1)][0], 7,
+ "pvq:skiprest");
+ for (j = 0; j < 3; j++) skip_rest[j] = !!(skip_dir & (1 << j));
+ }
+ }
+ }
+ *flags = 0;
+ for (i = nb_bands - 1; i >= 0; i--) {
+ *flags <<= 1;
+ *flags |= noref[i]&1;
+ *flags <<= 1;
+ *flags |= skip[i]&1;
+ }
+}
diff --git a/third_party/aom/av1/decoder/pvq_decoder.h b/third_party/aom/av1/decoder/pvq_decoder.h
new file mode 100644
index 000000000..98970663b
--- /dev/null
+++ b/third_party/aom/av1/decoder/pvq_decoder.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* clang-format off */
+
+#if !defined(_pvq_decoder_H)
+# define _pvq_decoder_H (1)
+# include "aom_dsp/bitreader.h"
+# include "aom_dsp/entdec.h"
+# include "av1/common/pvq.h"
+# include "av1/decoder/decint.h"
+
+#define aom_read_symbol_pvq(r, cdf, nsymbs, ACCT_STR_NAME) \
+ aom_read_symbol_pvq_(r, cdf, nsymbs ACCT_STR_ARG(ACCT_STR_NAME))
+
+int aom_read_symbol_pvq_(aom_reader *r, aom_cdf_prob *cdf, int nsymbs
+ ACCT_STR_PARAM);
+
+void aom_decode_band_pvq_splits(aom_reader *r, od_pvq_codeword_ctx *adapt,
+ od_coeff *y, int n, int k, int level);
+
+#define aom_laplace_decode_special(r, decay, ACCT_STR_NAME) \
+ aom_laplace_decode_special_(r, decay ACCT_STR_ARG(ACCT_STR_NAME))
+
+int aom_laplace_decode_special_(aom_reader *r, unsigned decay ACCT_STR_PARAM);
+
+void od_pvq_decode(daala_dec_ctx *dec, od_coeff *ref, od_coeff *out, int q0,
+ int pli, int bs, const od_val16 *beta, int is_keyframe,
+ unsigned int *flags, PVQ_SKIP_TYPE ac_dc_coded, const int16_t *qm,
+ const int16_t *qm_inv);
+
+#endif