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-rw-r--r--third_party/aom/av1/decoder/accounting.c138
-rw-r--r--third_party/aom/av1/decoder/accounting.h82
-rw-r--r--third_party/aom/av1/decoder/decodeframe.c5567
-rw-r--r--third_party/aom/av1/decoder/decodeframe.h85
-rw-r--r--third_party/aom/av1/decoder/decodemv.c1560
-rw-r--r--third_party/aom/av1/decoder/decodemv.h35
-rw-r--r--third_party/aom/av1/decoder/decoder.c575
-rw-r--r--third_party/aom/av1/decoder/decoder.h317
-rw-r--r--third_party/aom/av1/decoder/decodetxb.c362
-rw-r--r--third_party/aom/av1/decoder/decodetxb.h32
-rw-r--r--third_party/aom/av1/decoder/detokenize.c78
-rw-r--r--third_party/aom/av1/decoder/detokenize.h29
-rw-r--r--third_party/aom/av1/decoder/dthread.c192
-rw-r--r--third_party/aom/av1/decoder/dthread.h82
-rw-r--r--third_party/aom/av1/decoder/inspection.c117
-rw-r--r--third_party/aom/av1/decoder/inspection.h84
-rw-r--r--third_party/aom/av1/decoder/obu.c839
-rw-r--r--third_party/aom/av1/decoder/obu.h31
18 files changed, 10205 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..8d8f3dfdb
--- /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 "av1/decoder/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;
+ size_t 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..288e5e63e
--- /dev/null
+++ b/third_party/aom/av1/decoder/accounting.h
@@ -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.
+ */
+#ifndef AOM_AV1_DECODER_ACCOUNTING_H_
+#define AOM_AV1_DECODER_ACCOUNTING_H_
+#include <stdlib.h>
+#include "aom/aomdx.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;
+
+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_AV1_DECODER_ACCOUNTING_H_
diff --git a/third_party/aom/av1/decoder/decodeframe.c b/third_party/aom/av1/decoder/decodeframe.c
new file mode 100644
index 000000000..31f14b531
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodeframe.c
@@ -0,0 +1,5567 @@
+/*
+ * 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 <stddef.h>
+
+#include "config/aom_config.h"
+#include "config/aom_dsp_rtcd.h"
+#include "config/aom_scale_rtcd.h"
+#include "config/av1_rtcd.h"
+
+#include "aom/aom_codec.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/binary_codes_reader.h"
+#include "aom_dsp/bitreader.h"
+#include "aom_dsp/bitreader_buffer.h"
+#include "aom_mem/aom_mem.h"
+#include "aom_ports/aom_timer.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 || CONFIG_MISMATCH_DEBUG
+#include "aom_util/debug_util.h"
+#endif // CONFIG_BITSTREAM_DEBUG || CONFIG_MISMATCH_DEBUG
+
+#include "av1/common/alloccommon.h"
+#include "av1/common/cdef.h"
+#include "av1/common/cfl.h"
+#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/frame_buffers.h"
+#include "av1/common/idct.h"
+#include "av1/common/mvref_common.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/resize.h"
+#include "av1/common/seg_common.h"
+#include "av1/common/thread_common.h"
+#include "av1/common/tile_common.h"
+#include "av1/common/warped_motion.h"
+#include "av1/common/obmc.h"
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/decodemv.h"
+#include "av1/decoder/decoder.h"
+#include "av1/decoder/decodetxb.h"
+#include "av1/decoder/detokenize.h"
+
+#define ACCT_STR __func__
+
+// This is needed by ext_tile related unit tests.
+#define EXT_TILE_DEBUG 1
+#define MC_TEMP_BUF_PELS \
+ (((MAX_SB_SIZE)*2 + (AOM_INTERP_EXTEND)*2) * \
+ ((MAX_SB_SIZE)*2 + (AOM_INTERP_EXTEND)*2))
+
+// Checks that the remaining bits start with a 1 and ends with 0s.
+// It consumes an additional byte, if already byte aligned before the check.
+int av1_check_trailing_bits(AV1Decoder *pbi, struct aom_read_bit_buffer *rb) {
+ AV1_COMMON *const cm = &pbi->common;
+ // bit_offset is set to 0 (mod 8) when the reader is already byte aligned
+ int bits_before_alignment = 8 - rb->bit_offset % 8;
+ int trailing = aom_rb_read_literal(rb, bits_before_alignment);
+ if (trailing != (1 << (bits_before_alignment - 1))) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ return 0;
+}
+
+// Use only_chroma = 1 to only set the chroma planes
+static void set_planes_to_neutral_grey(const SequenceHeader *const seq_params,
+ const YV12_BUFFER_CONFIG *const buf,
+ int only_chroma) {
+ if (seq_params->use_highbitdepth) {
+ const int val = 1 << (seq_params->bit_depth - 1);
+ for (int plane = only_chroma; plane < MAX_MB_PLANE; plane++) {
+ const int is_uv = plane > 0;
+ uint16_t *const base = CONVERT_TO_SHORTPTR(buf->buffers[plane]);
+ // Set the first row to neutral grey. Then copy the first row to all
+ // subsequent rows.
+ if (buf->crop_heights[is_uv] > 0) {
+ aom_memset16(base, val, buf->crop_widths[is_uv]);
+ for (int row_idx = 1; row_idx < buf->crop_heights[is_uv]; row_idx++) {
+ memcpy(&base[row_idx * buf->strides[is_uv]], base,
+ sizeof(*base) * buf->crop_widths[is_uv]);
+ }
+ }
+ }
+ } else {
+ for (int plane = only_chroma; plane < MAX_MB_PLANE; plane++) {
+ const int is_uv = plane > 0;
+ for (int row_idx = 0; row_idx < buf->crop_heights[is_uv]; row_idx++) {
+ memset(&buf->buffers[plane][row_idx * buf->uv_stride], 1 << 7,
+ buf->crop_widths[is_uv]);
+ }
+ }
+ }
+}
+
+static void loop_restoration_read_sb_coeffs(const AV1_COMMON *const cm,
+ MACROBLOCKD *xd,
+ aom_reader *const r, int plane,
+ int runit_idx);
+
+static void setup_compound_reference_mode(AV1_COMMON *cm) {
+ 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] = ALTREF2_FRAME;
+ cm->comp_bwd_ref[2] = ALTREF_FRAME;
+}
+
+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 TX_MODE read_tx_mode(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ if (cm->coded_lossless) return ONLY_4X4;
+ return aom_rb_read_bit(rb) ? TX_MODE_SELECT : TX_MODE_LARGEST;
+}
+
+static REFERENCE_MODE read_frame_reference_mode(
+ const AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ if (frame_is_intra_only(cm)) {
+ return SINGLE_REFERENCE;
+ } else {
+ return aom_rb_read_bit(rb) ? REFERENCE_MODE_SELECT : SINGLE_REFERENCE;
+ }
+}
+
+static void inverse_transform_block(MACROBLOCKD *xd, int plane,
+ const TX_TYPE tx_type,
+ const TX_SIZE tx_size, uint8_t *dst,
+ int stride, int reduced_tx_set) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ tran_low_t *const dqcoeff = pd->dqcoeff;
+ eob_info *eob_data = pd->eob_data + xd->txb_offset[plane];
+ uint16_t scan_line = eob_data->max_scan_line;
+ uint16_t eob = eob_data->eob;
+
+ memcpy(dqcoeff, pd->dqcoeff_block + xd->cb_offset[plane],
+ (scan_line + 1) * sizeof(dqcoeff[0]));
+ av1_inverse_transform_block(xd, dqcoeff, plane, tx_type, tx_size, dst, stride,
+ eob, reduced_tx_set);
+ memset(dqcoeff, 0, (scan_line + 1) * sizeof(dqcoeff[0]));
+}
+
+static void read_coeffs_tx_intra_block(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ aom_reader *const r, const int plane,
+ const int row, const int col,
+ const TX_SIZE tx_size) {
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ if (!mbmi->skip) {
+#if TXCOEFF_TIMER
+ struct aom_usec_timer timer;
+ aom_usec_timer_start(&timer);
+#endif
+ av1_read_coeffs_txb_facade(cm, xd, r, plane, row, col, tx_size);
+#if TXCOEFF_TIMER
+ aom_usec_timer_mark(&timer);
+ const int64_t elapsed_time = aom_usec_timer_elapsed(&timer);
+ cm->txcoeff_timer += elapsed_time;
+ ++cm->txb_count;
+#endif
+ }
+}
+
+static void decode_block_void(const AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ aom_reader *const r, const int plane,
+ const int row, const int col,
+ const TX_SIZE tx_size) {
+ (void)cm;
+ (void)xd;
+ (void)r;
+ (void)plane;
+ (void)row;
+ (void)col;
+ (void)tx_size;
+}
+
+static void predict_inter_block_void(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, int mi_row,
+ int mi_col, BLOCK_SIZE bsize) {
+ (void)cm;
+ (void)xd;
+ (void)mi_row;
+ (void)mi_col;
+ (void)bsize;
+}
+
+static void cfl_store_inter_block_void(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd) {
+ (void)cm;
+ (void)xd;
+}
+
+static void predict_and_reconstruct_intra_block(
+ const AV1_COMMON *const cm, MACROBLOCKD *const xd, aom_reader *const r,
+ const int plane, const int row, const int col, const TX_SIZE tx_size) {
+ (void)r;
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ PLANE_TYPE plane_type = get_plane_type(plane);
+
+ av1_predict_intra_block_facade(cm, xd, plane, col, row, tx_size);
+
+ if (!mbmi->skip) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, row, col, tx_size,
+ cm->reduced_tx_set_used);
+ eob_info *eob_data = pd->eob_data + xd->txb_offset[plane];
+ if (eob_data->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,
+ cm->reduced_tx_set_used);
+ }
+ }
+ if (plane == AOM_PLANE_Y && store_cfl_required(cm, xd)) {
+ cfl_store_tx(xd, row, col, tx_size, mbmi->sb_type);
+ }
+}
+
+static void inverse_transform_inter_block(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ aom_reader *const r, const int plane,
+ const int blk_row, const int blk_col,
+ const TX_SIZE tx_size) {
+ (void)r;
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col,
+ tx_size, cm->reduced_tx_set_used);
+
+ uint8_t *dst =
+ &pd->dst
+ .buf[(blk_row * pd->dst.stride + blk_col) << tx_size_wide_log2[0]];
+ inverse_transform_block(xd, plane, tx_type, tx_size, dst, pd->dst.stride,
+ cm->reduced_tx_set_used);
+#if CONFIG_MISMATCH_DEBUG
+ int pixel_c, pixel_r;
+ BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
+ int blk_w = block_size_wide[bsize];
+ int blk_h = block_size_high[bsize];
+ mi_to_pixel_loc(&pixel_c, &pixel_r, mi_col, mi_row, blk_col, blk_row,
+ pd->subsampling_x, pd->subsampling_y);
+ mismatch_check_block_tx(dst, pd->dst.stride, cm->frame_offset, plane, pixel_c,
+ pixel_r, blk_w, blk_h,
+ xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH);
+#endif
+}
+
+static void set_cb_buffer_offsets(MACROBLOCKD *const xd, TX_SIZE tx_size,
+ int plane) {
+ xd->cb_offset[plane] += tx_size_wide[tx_size] * tx_size_high[tx_size];
+ xd->txb_offset[plane] =
+ xd->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN);
+}
+
+static void decode_reconstruct_tx(AV1_COMMON *cm, ThreadData *const td,
+ aom_reader *r, MB_MODE_INFO *const mbmi,
+ int plane, BLOCK_SIZE plane_bsize,
+ int blk_row, int blk_col, int block,
+ TX_SIZE tx_size, int *eob_total) {
+ MACROBLOCKD *const xd = &td->xd;
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ const TX_SIZE plane_tx_size =
+ plane ? av1_get_max_uv_txsize(mbmi->sb_type, pd->subsampling_x,
+ pd->subsampling_y)
+ : mbmi->inter_tx_size[av1_get_txb_size_index(plane_bsize, blk_row,
+ blk_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) {
+ td->read_coeffs_tx_inter_block_visit(cm, xd, r, plane, blk_row, blk_col,
+ tx_size);
+
+ td->inverse_tx_inter_block_visit(cm, xd, r, plane, blk_row, blk_col,
+ tx_size);
+ eob_info *eob_data = pd->eob_data + xd->txb_offset[plane];
+ *eob_total += eob_data->eob;
+ set_cb_buffer_offsets(xd, tx_size, plane);
+ } else {
+ const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
+ assert(IMPLIES(tx_size <= TX_4X4, sub_txs == tx_size));
+ assert(IMPLIES(tx_size > TX_4X4, sub_txs < tx_size));
+ const int bsw = tx_size_wide_unit[sub_txs];
+ const int bsh = tx_size_high_unit[sub_txs];
+ const int sub_step = bsw * bsh;
+
+ assert(bsw > 0 && bsh > 0);
+
+ for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) {
+ for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) {
+ const int offsetr = blk_row + row;
+ const int offsetc = blk_col + col;
+
+ if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
+
+ decode_reconstruct_tx(cm, td, r, mbmi, plane, plane_bsize, offsetr,
+ offsetc, block, sub_txs, eob_total);
+ block += sub_step;
+ }
+ }
+ }
+}
+
+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 num_planes = av1_num_planes(cm);
+
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ 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]->sb_type = bsize;
+#if CONFIG_RD_DEBUG
+ xd->mi[0]->mi_row = mi_row;
+ xd->mi[0]->mi_col = mi_col;
+#endif
+ xd->cfl.mi_row = mi_row;
+ xd->cfl.mi_col = mi_col;
+
+ assert(x_mis && y_mis);
+ for (int x = 1; x < x_mis; ++x) xd->mi[x] = xd->mi[0];
+ int idx = cm->mi_stride;
+ for (int y = 1; y < y_mis; ++y) {
+ memcpy(&xd->mi[idx], &xd->mi[0], x_mis * sizeof(xd->mi[0]));
+ idx += cm->mi_stride;
+ }
+
+ set_plane_n4(xd, bw, bh, num_planes);
+ set_skip_context(xd, mi_row, mi_col, num_planes);
+
+ // 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, cm->mi_rows, cm->mi_cols);
+
+ av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row,
+ mi_col, 0, num_planes);
+}
+
+static void decode_mbmi_block(AV1Decoder *const pbi, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r,
+ PARTITION_TYPE partition, BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ 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
+ set_offsets(cm, xd, bsize, mi_row, mi_col, bw, bh, x_mis, y_mis);
+ xd->mi[0]->partition = partition;
+ av1_read_mode_info(pbi, xd, mi_row, mi_col, r, x_mis, y_mis);
+ if (bsize >= BLOCK_8X8 &&
+ (seq_params->subsampling_x || seq_params->subsampling_y)) {
+ const BLOCK_SIZE uv_subsize =
+ ss_size_lookup[bsize][seq_params->subsampling_x]
+ [seq_params->subsampling_y];
+ if (uv_subsize == BLOCK_INVALID)
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid block size.");
+ }
+
+ int reader_corrupted_flag = aom_reader_has_error(r);
+ aom_merge_corrupted_flag(&xd->corrupted, reader_corrupted_flag);
+}
+
+typedef struct PadBlock {
+ int x0;
+ int x1;
+ int y0;
+ int y1;
+} PadBlock;
+
+static void highbd_build_mc_border(const uint8_t *src8, int src_stride,
+ uint8_t *dst8, int dst_stride, int x, int y,
+ int b_w, int b_h, int w, int h) {
+ // Get a pointer to the start of the real data for this row.
+ const uint16_t *src = CONVERT_TO_SHORTPTR(src8);
+ uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
+ const uint16_t *ref_row = src - x - y * src_stride;
+
+ if (y >= h)
+ ref_row += (h - 1) * src_stride;
+ else if (y > 0)
+ ref_row += y * src_stride;
+
+ do {
+ int right = 0, copy;
+ int left = x < 0 ? -x : 0;
+
+ if (left > b_w) left = b_w;
+
+ if (x + b_w > w) right = x + b_w - w;
+
+ if (right > b_w) right = b_w;
+
+ copy = b_w - left - right;
+
+ if (left) aom_memset16(dst, ref_row[0], left);
+
+ if (copy) memcpy(dst + left, ref_row + x + left, copy * sizeof(uint16_t));
+
+ if (right) aom_memset16(dst + left + copy, ref_row[w - 1], right);
+
+ dst += dst_stride;
+ ++y;
+
+ if (y > 0 && y < h) ref_row += src_stride;
+ } while (--b_h);
+}
+
+static void build_mc_border(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int x, int y, int b_w, int b_h,
+ int w, int h) {
+ // Get a pointer to the start of the real data for this row.
+ const uint8_t *ref_row = src - x - y * src_stride;
+
+ if (y >= h)
+ ref_row += (h - 1) * src_stride;
+ else if (y > 0)
+ ref_row += y * src_stride;
+
+ do {
+ int right = 0, copy;
+ int left = x < 0 ? -x : 0;
+
+ if (left > b_w) left = b_w;
+
+ if (x + b_w > w) right = x + b_w - w;
+
+ if (right > b_w) right = b_w;
+
+ copy = b_w - left - right;
+
+ if (left) memset(dst, ref_row[0], left);
+
+ if (copy) memcpy(dst + left, ref_row + x + left, copy);
+
+ if (right) memset(dst + left + copy, ref_row[w - 1], right);
+
+ dst += dst_stride;
+ ++y;
+
+ if (y > 0 && y < h) ref_row += src_stride;
+ } while (--b_h);
+}
+
+static INLINE int update_extend_mc_border_params(
+ const struct scale_factors *const sf, struct buf_2d *const pre_buf,
+ MV32 scaled_mv, PadBlock *block, int subpel_x_mv, int subpel_y_mv,
+ int do_warp, int is_intrabc, int *x_pad, int *y_pad) {
+ const int is_scaled = av1_is_scaled(sf);
+ // Get reference width and height.
+ int frame_width = pre_buf->width;
+ int frame_height = pre_buf->height;
+
+ // Do border extension if there is motion or
+ // width/height is not a multiple of 8 pixels.
+ if ((!is_intrabc) && (!do_warp) &&
+ (is_scaled || scaled_mv.col || scaled_mv.row || (frame_width & 0x7) ||
+ (frame_height & 0x7))) {
+ if (subpel_x_mv || (sf->x_step_q4 != SUBPEL_SHIFTS)) {
+ block->x0 -= AOM_INTERP_EXTEND - 1;
+ block->x1 += AOM_INTERP_EXTEND;
+ *x_pad = 1;
+ }
+
+ if (subpel_y_mv || (sf->y_step_q4 != SUBPEL_SHIFTS)) {
+ block->y0 -= AOM_INTERP_EXTEND - 1;
+ block->y1 += AOM_INTERP_EXTEND;
+ *y_pad = 1;
+ }
+
+ // Skip border extension if block is inside the frame.
+ if (block->x0 < 0 || block->x1 > frame_width - 1 || block->y0 < 0 ||
+ block->y1 > frame_height - 1) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static INLINE void extend_mc_border(const struct scale_factors *const sf,
+ struct buf_2d *const pre_buf,
+ MV32 scaled_mv, PadBlock block,
+ int subpel_x_mv, int subpel_y_mv,
+ int do_warp, int is_intrabc, int highbd,
+ uint8_t *mc_buf, uint8_t **pre,
+ int *src_stride) {
+ int x_pad = 0, y_pad = 0;
+ if (update_extend_mc_border_params(sf, pre_buf, scaled_mv, &block,
+ subpel_x_mv, subpel_y_mv, do_warp,
+ is_intrabc, &x_pad, &y_pad)) {
+ // Get reference block pointer.
+ const uint8_t *const buf_ptr =
+ pre_buf->buf0 + block.y0 * pre_buf->stride + block.x0;
+ int buf_stride = pre_buf->stride;
+ const int b_w = block.x1 - block.x0;
+ const int b_h = block.y1 - block.y0;
+
+ // Extend the border.
+ if (highbd) {
+ highbd_build_mc_border(buf_ptr, buf_stride, mc_buf, b_w, block.x0,
+ block.y0, b_w, b_h, pre_buf->width,
+ pre_buf->height);
+ } else {
+ build_mc_border(buf_ptr, buf_stride, mc_buf, b_w, block.x0, block.y0, b_w,
+ b_h, pre_buf->width, pre_buf->height);
+ }
+ *src_stride = b_w;
+ *pre = mc_buf + y_pad * (AOM_INTERP_EXTEND - 1) * b_w +
+ x_pad * (AOM_INTERP_EXTEND - 1);
+ }
+}
+
+static INLINE void dec_calc_subpel_params(
+ MACROBLOCKD *xd, const struct scale_factors *const sf, const MV mv,
+ int plane, const int pre_x, const int pre_y, int x, int y,
+ struct buf_2d *const pre_buf, SubpelParams *subpel_params, int bw, int bh,
+ PadBlock *block, int mi_x, int mi_y, MV32 *scaled_mv, int *subpel_x_mv,
+ int *subpel_y_mv) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ const int is_scaled = av1_is_scaled(sf);
+ if (is_scaled) {
+ int ssx = pd->subsampling_x;
+ int ssy = pd->subsampling_y;
+ int orig_pos_y = (pre_y + y) << SUBPEL_BITS;
+ orig_pos_y += mv.row * (1 << (1 - ssy));
+ int orig_pos_x = (pre_x + x) << SUBPEL_BITS;
+ orig_pos_x += mv.col * (1 << (1 - ssx));
+ int pos_y = sf->scale_value_y(orig_pos_y, sf);
+ int pos_x = sf->scale_value_x(orig_pos_x, sf);
+ pos_x += SCALE_EXTRA_OFF;
+ pos_y += SCALE_EXTRA_OFF;
+
+ const int top = -AOM_LEFT_TOP_MARGIN_SCALED(ssy);
+ const int left = -AOM_LEFT_TOP_MARGIN_SCALED(ssx);
+ const int bottom = (pre_buf->height + AOM_INTERP_EXTEND)
+ << SCALE_SUBPEL_BITS;
+ const int right = (pre_buf->width + AOM_INTERP_EXTEND) << SCALE_SUBPEL_BITS;
+ pos_y = clamp(pos_y, top, bottom);
+ pos_x = clamp(pos_x, left, right);
+
+ subpel_params->subpel_x = pos_x & SCALE_SUBPEL_MASK;
+ subpel_params->subpel_y = pos_y & SCALE_SUBPEL_MASK;
+ subpel_params->xs = sf->x_step_q4;
+ subpel_params->ys = sf->y_step_q4;
+
+ // Get reference block top left coordinate.
+ block->x0 = pos_x >> SCALE_SUBPEL_BITS;
+ block->y0 = pos_y >> SCALE_SUBPEL_BITS;
+
+ // Get reference block bottom right coordinate.
+ block->x1 =
+ ((pos_x + (bw - 1) * subpel_params->xs) >> SCALE_SUBPEL_BITS) + 1;
+ block->y1 =
+ ((pos_y + (bh - 1) * subpel_params->ys) >> SCALE_SUBPEL_BITS) + 1;
+
+ MV temp_mv;
+ temp_mv = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh, pd->subsampling_x,
+ pd->subsampling_y);
+ *scaled_mv = av1_scale_mv(&temp_mv, (mi_x + x), (mi_y + y), sf);
+ scaled_mv->row += SCALE_EXTRA_OFF;
+ scaled_mv->col += SCALE_EXTRA_OFF;
+
+ *subpel_x_mv = scaled_mv->col & SCALE_SUBPEL_MASK;
+ *subpel_y_mv = scaled_mv->row & SCALE_SUBPEL_MASK;
+ } else {
+ // Get block position in current frame.
+ int pos_x = (pre_x + x) << SUBPEL_BITS;
+ int pos_y = (pre_y + y) << SUBPEL_BITS;
+
+ const MV mv_q4 = clamp_mv_to_umv_border_sb(
+ xd, &mv, bw, bh, pd->subsampling_x, pd->subsampling_y);
+ subpel_params->xs = subpel_params->ys = SCALE_SUBPEL_SHIFTS;
+ subpel_params->subpel_x = (mv_q4.col & SUBPEL_MASK) << SCALE_EXTRA_BITS;
+ subpel_params->subpel_y = (mv_q4.row & SUBPEL_MASK) << SCALE_EXTRA_BITS;
+
+ // Get reference block top left coordinate.
+ pos_x += mv_q4.col;
+ pos_y += mv_q4.row;
+ block->x0 = pos_x >> SUBPEL_BITS;
+ block->y0 = pos_y >> SUBPEL_BITS;
+
+ // Get reference block bottom right coordinate.
+ block->x1 = (pos_x >> SUBPEL_BITS) + (bw - 1) + 1;
+ block->y1 = (pos_y >> SUBPEL_BITS) + (bh - 1) + 1;
+
+ scaled_mv->row = mv_q4.row;
+ scaled_mv->col = mv_q4.col;
+ *subpel_x_mv = scaled_mv->col & SUBPEL_MASK;
+ *subpel_y_mv = scaled_mv->row & SUBPEL_MASK;
+ }
+}
+
+static INLINE void dec_build_inter_predictors(const AV1_COMMON *cm,
+ MACROBLOCKD *xd, int plane,
+ const MB_MODE_INFO *mi,
+ int build_for_obmc, int bw,
+ int bh, int mi_x, int mi_y) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ int is_compound = has_second_ref(mi);
+ int ref;
+ const int is_intrabc = is_intrabc_block(mi);
+ assert(IMPLIES(is_intrabc, !is_compound));
+ int is_global[2] = { 0, 0 };
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ const WarpedMotionParams *const wm = &xd->global_motion[mi->ref_frame[ref]];
+ is_global[ref] = is_global_mv_block(mi, wm->wmtype);
+ }
+
+ const BLOCK_SIZE bsize = mi->sb_type;
+ const int ss_x = pd->subsampling_x;
+ const int ss_y = pd->subsampling_y;
+ int sub8x8_inter = (block_size_wide[bsize] < 8 && ss_x) ||
+ (block_size_high[bsize] < 8 && ss_y);
+
+ if (is_intrabc) sub8x8_inter = 0;
+
+ // For sub8x8 chroma blocks, we may be covering more than one luma block's
+ // worth of pixels. Thus (mi_x, mi_y) may not be the correct coordinates for
+ // the top-left corner of the prediction source - the correct top-left corner
+ // is at (pre_x, pre_y).
+ const int row_start =
+ (block_size_high[bsize] == 4) && ss_y && !build_for_obmc ? -1 : 0;
+ const int col_start =
+ (block_size_wide[bsize] == 4) && ss_x && !build_for_obmc ? -1 : 0;
+ const int pre_x = (mi_x + MI_SIZE * col_start) >> ss_x;
+ const int pre_y = (mi_y + MI_SIZE * row_start) >> ss_y;
+
+ sub8x8_inter = sub8x8_inter && !build_for_obmc;
+ if (sub8x8_inter) {
+ for (int row = row_start; row <= 0 && sub8x8_inter; ++row) {
+ for (int col = col_start; col <= 0; ++col) {
+ const MB_MODE_INFO *this_mbmi = xd->mi[row * xd->mi_stride + col];
+ if (!is_inter_block(this_mbmi)) sub8x8_inter = 0;
+ if (is_intrabc_block(this_mbmi)) sub8x8_inter = 0;
+ }
+ }
+ }
+
+ if (sub8x8_inter) {
+ // block size
+ const int b4_w = block_size_wide[bsize] >> ss_x;
+ const int b4_h = block_size_high[bsize] >> ss_y;
+ const BLOCK_SIZE plane_bsize = scale_chroma_bsize(bsize, ss_x, ss_y);
+ const int b8_w = block_size_wide[plane_bsize] >> ss_x;
+ const int b8_h = block_size_high[plane_bsize] >> ss_y;
+ assert(!is_compound);
+
+ const struct buf_2d orig_pred_buf[2] = { pd->pre[0], pd->pre[1] };
+
+ int row = row_start;
+ int src_stride;
+ for (int y = 0; y < b8_h; y += b4_h) {
+ int col = col_start;
+ for (int x = 0; x < b8_w; x += b4_w) {
+ MB_MODE_INFO *this_mbmi = xd->mi[row * xd->mi_stride + col];
+ is_compound = has_second_ref(this_mbmi);
+ int tmp_dst_stride = 8;
+ assert(bw < 8 || bh < 8);
+ ConvolveParams conv_params = get_conv_params_no_round(
+ 0, plane, xd->tmp_conv_dst, tmp_dst_stride, is_compound, xd->bd);
+ conv_params.use_jnt_comp_avg = 0;
+ struct buf_2d *const dst_buf = &pd->dst;
+ uint8_t *dst = dst_buf->buf + dst_buf->stride * y + x;
+
+ ref = 0;
+ const RefBuffer *ref_buf =
+ &cm->frame_refs[this_mbmi->ref_frame[ref] - LAST_FRAME];
+
+ pd->pre[ref].buf0 =
+ (plane == 1) ? ref_buf->buf->u_buffer : ref_buf->buf->v_buffer;
+ pd->pre[ref].buf =
+ pd->pre[ref].buf0 + scaled_buffer_offset(pre_x, pre_y,
+ ref_buf->buf->uv_stride,
+ &ref_buf->sf);
+ pd->pre[ref].width = ref_buf->buf->uv_crop_width;
+ pd->pre[ref].height = ref_buf->buf->uv_crop_height;
+ pd->pre[ref].stride = ref_buf->buf->uv_stride;
+
+ const struct scale_factors *const sf =
+ is_intrabc ? &cm->sf_identity : &ref_buf->sf;
+ struct buf_2d *const pre_buf = is_intrabc ? dst_buf : &pd->pre[ref];
+
+ const MV mv = this_mbmi->mv[ref].as_mv;
+
+ uint8_t *pre;
+ SubpelParams subpel_params;
+ PadBlock block;
+ MV32 scaled_mv;
+ int subpel_x_mv, subpel_y_mv;
+ int highbd;
+ WarpTypesAllowed warp_types;
+ warp_types.global_warp_allowed = is_global[ref];
+ warp_types.local_warp_allowed = this_mbmi->motion_mode == WARPED_CAUSAL;
+
+ dec_calc_subpel_params(xd, sf, mv, plane, pre_x, pre_y, x, y, pre_buf,
+ &subpel_params, bw, bh, &block, mi_x, mi_y,
+ &scaled_mv, &subpel_x_mv, &subpel_y_mv);
+ pre = pre_buf->buf0 + block.y0 * pre_buf->stride + block.x0;
+ src_stride = pre_buf->stride;
+ highbd = xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH;
+ extend_mc_border(sf, pre_buf, scaled_mv, block, subpel_x_mv,
+ subpel_y_mv, 0, is_intrabc, highbd, xd->mc_buf[ref],
+ &pre, &src_stride);
+ conv_params.do_average = ref;
+ if (is_masked_compound_type(mi->interinter_comp.type)) {
+ // masked compound type has its own average mechanism
+ conv_params.do_average = 0;
+ }
+
+ av1_make_inter_predictor(
+ pre, src_stride, dst, dst_buf->stride, &subpel_params, sf, b4_w,
+ b4_h, &conv_params, this_mbmi->interp_filters, &warp_types,
+ (mi_x >> pd->subsampling_x) + x, (mi_y >> pd->subsampling_y) + y,
+ plane, ref, mi, build_for_obmc, xd, cm->allow_warped_motion);
+
+ ++col;
+ }
+ ++row;
+ }
+
+ for (ref = 0; ref < 2; ++ref) pd->pre[ref] = orig_pred_buf[ref];
+ return;
+ }
+
+ {
+ struct buf_2d *const dst_buf = &pd->dst;
+ uint8_t *const dst = dst_buf->buf;
+ uint8_t *pre[2];
+ SubpelParams subpel_params[2];
+ int src_stride[2];
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ const struct scale_factors *const sf =
+ is_intrabc ? &cm->sf_identity : &xd->block_refs[ref]->sf;
+ struct buf_2d *const pre_buf = is_intrabc ? dst_buf : &pd->pre[ref];
+ const MV mv = mi->mv[ref].as_mv;
+ PadBlock block;
+ MV32 scaled_mv;
+ int subpel_x_mv, subpel_y_mv;
+ int highbd;
+
+ dec_calc_subpel_params(xd, sf, mv, plane, pre_x, pre_y, 0, 0, pre_buf,
+ &subpel_params[ref], bw, bh, &block, mi_x, mi_y,
+ &scaled_mv, &subpel_x_mv, &subpel_y_mv);
+ pre[ref] = pre_buf->buf0 + block.y0 * pre_buf->stride + block.x0;
+ src_stride[ref] = pre_buf->stride;
+ highbd = xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH;
+
+ WarpTypesAllowed warp_types;
+ warp_types.global_warp_allowed = is_global[ref];
+ warp_types.local_warp_allowed = mi->motion_mode == WARPED_CAUSAL;
+ int do_warp = (bw >= 8 && bh >= 8 &&
+ av1_allow_warp(mi, &warp_types,
+ &xd->global_motion[mi->ref_frame[ref]],
+ build_for_obmc, subpel_params[ref].xs,
+ subpel_params[ref].ys, NULL));
+ do_warp = (do_warp && xd->cur_frame_force_integer_mv == 0);
+
+ extend_mc_border(sf, pre_buf, scaled_mv, block, subpel_x_mv, subpel_y_mv,
+ do_warp, is_intrabc, highbd, xd->mc_buf[ref], &pre[ref],
+ &src_stride[ref]);
+ }
+
+ ConvolveParams conv_params = get_conv_params_no_round(
+ 0, plane, xd->tmp_conv_dst, MAX_SB_SIZE, is_compound, xd->bd);
+ av1_jnt_comp_weight_assign(cm, mi, 0, &conv_params.fwd_offset,
+ &conv_params.bck_offset,
+ &conv_params.use_jnt_comp_avg, is_compound);
+
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ const struct scale_factors *const sf =
+ is_intrabc ? &cm->sf_identity : &xd->block_refs[ref]->sf;
+ WarpTypesAllowed warp_types;
+ warp_types.global_warp_allowed = is_global[ref];
+ warp_types.local_warp_allowed = mi->motion_mode == WARPED_CAUSAL;
+ conv_params.do_average = ref;
+ if (is_masked_compound_type(mi->interinter_comp.type)) {
+ // masked compound type has its own average mechanism
+ conv_params.do_average = 0;
+ }
+
+ if (ref && is_masked_compound_type(mi->interinter_comp.type))
+ av1_make_masked_inter_predictor(
+ pre[ref], src_stride[ref], dst, dst_buf->stride,
+ &subpel_params[ref], sf, bw, bh, &conv_params, mi->interp_filters,
+ plane, &warp_types, mi_x >> pd->subsampling_x,
+ mi_y >> pd->subsampling_y, ref, xd, cm->allow_warped_motion);
+ else
+ av1_make_inter_predictor(
+ pre[ref], src_stride[ref], dst, dst_buf->stride,
+ &subpel_params[ref], sf, bw, bh, &conv_params, mi->interp_filters,
+ &warp_types, mi_x >> pd->subsampling_x, mi_y >> pd->subsampling_y,
+ plane, ref, mi, build_for_obmc, xd, cm->allow_warped_motion);
+ }
+ }
+}
+
+static void dec_build_inter_predictors_for_planes(const AV1_COMMON *cm,
+ MACROBLOCKD *xd,
+ BLOCK_SIZE bsize, int mi_row,
+ int mi_col, int plane_from,
+ int plane_to) {
+ int plane;
+ const int mi_x = mi_col * MI_SIZE;
+ const int mi_y = mi_row * MI_SIZE;
+ for (plane = plane_from; plane <= plane_to; ++plane) {
+ const struct macroblockd_plane *pd = &xd->plane[plane];
+ const int bw = pd->width;
+ const int bh = pd->height;
+
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+
+ dec_build_inter_predictors(cm, xd, plane, xd->mi[0], 0, bw, bh, mi_x, mi_y);
+ }
+}
+
+static void dec_build_inter_predictors_sby(const AV1_COMMON *cm,
+ MACROBLOCKD *xd, int mi_row,
+ int mi_col, BUFFER_SET *ctx,
+ BLOCK_SIZE bsize) {
+ dec_build_inter_predictors_for_planes(cm, xd, bsize, mi_row, mi_col, 0, 0);
+
+ if (is_interintra_pred(xd->mi[0])) {
+ BUFFER_SET default_ctx = { { xd->plane[0].dst.buf, NULL, NULL },
+ { xd->plane[0].dst.stride, 0, 0 } };
+ if (!ctx) ctx = &default_ctx;
+ av1_build_interintra_predictors_sbp(cm, xd, xd->plane[0].dst.buf,
+ xd->plane[0].dst.stride, ctx, 0, bsize);
+ }
+}
+
+static void dec_build_inter_predictors_sbuv(const AV1_COMMON *cm,
+ MACROBLOCKD *xd, int mi_row,
+ int mi_col, BUFFER_SET *ctx,
+ BLOCK_SIZE bsize) {
+ dec_build_inter_predictors_for_planes(cm, xd, bsize, mi_row, mi_col, 1,
+ MAX_MB_PLANE - 1);
+
+ if (is_interintra_pred(xd->mi[0])) {
+ BUFFER_SET default_ctx = {
+ { NULL, xd->plane[1].dst.buf, xd->plane[2].dst.buf },
+ { 0, xd->plane[1].dst.stride, xd->plane[2].dst.stride }
+ };
+ if (!ctx) ctx = &default_ctx;
+ av1_build_interintra_predictors_sbuv(
+ cm, xd, xd->plane[1].dst.buf, xd->plane[2].dst.buf,
+ xd->plane[1].dst.stride, xd->plane[2].dst.stride, ctx, bsize);
+ }
+}
+
+static void dec_build_inter_predictors_sb(const AV1_COMMON *cm, MACROBLOCKD *xd,
+ int mi_row, int mi_col,
+ BUFFER_SET *ctx, BLOCK_SIZE bsize) {
+ const int num_planes = av1_num_planes(cm);
+ dec_build_inter_predictors_sby(cm, xd, mi_row, mi_col, ctx, bsize);
+ if (num_planes > 1)
+ dec_build_inter_predictors_sbuv(cm, xd, mi_row, mi_col, ctx, bsize);
+}
+
+static INLINE void dec_build_prediction_by_above_pred(
+ MACROBLOCKD *xd, int rel_mi_col, uint8_t above_mi_width,
+ MB_MODE_INFO *above_mbmi, void *fun_ctxt, const int num_planes) {
+ struct build_prediction_ctxt *ctxt = (struct build_prediction_ctxt *)fun_ctxt;
+ const int above_mi_col = ctxt->mi_col + rel_mi_col;
+ int mi_x, mi_y;
+ MB_MODE_INFO backup_mbmi = *above_mbmi;
+
+ av1_setup_build_prediction_by_above_pred(xd, rel_mi_col, above_mi_width,
+ &backup_mbmi, ctxt, num_planes);
+ mi_x = above_mi_col << MI_SIZE_LOG2;
+ mi_y = ctxt->mi_row << MI_SIZE_LOG2;
+
+ const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
+
+ for (int j = 0; j < num_planes; ++j) {
+ const struct macroblockd_plane *pd = &xd->plane[j];
+ int bw = (above_mi_width * MI_SIZE) >> pd->subsampling_x;
+ int bh = clamp(block_size_high[bsize] >> (pd->subsampling_y + 1), 4,
+ block_size_high[BLOCK_64X64] >> (pd->subsampling_y + 1));
+
+ if (av1_skip_u4x4_pred_in_obmc(bsize, pd, 0)) continue;
+ dec_build_inter_predictors(ctxt->cm, xd, j, &backup_mbmi, 1, bw, bh, mi_x,
+ mi_y);
+ }
+}
+
+static void dec_build_prediction_by_above_preds(
+ const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
+ uint8_t *tmp_buf[MAX_MB_PLANE], int tmp_width[MAX_MB_PLANE],
+ int tmp_height[MAX_MB_PLANE], int tmp_stride[MAX_MB_PLANE]) {
+ if (!xd->up_available) return;
+
+ // Adjust mb_to_bottom_edge to have the correct value for the OBMC
+ // prediction block. This is half the height of the original block,
+ // except for 128-wide blocks, where we only use a height of 32.
+ int this_height = xd->n4_h * MI_SIZE;
+ int pred_height = AOMMIN(this_height / 2, 32);
+ xd->mb_to_bottom_edge += (this_height - pred_height) * 8;
+
+ struct build_prediction_ctxt ctxt = { cm, mi_row,
+ mi_col, tmp_buf,
+ tmp_width, tmp_height,
+ tmp_stride, xd->mb_to_right_edge };
+ BLOCK_SIZE bsize = xd->mi[0]->sb_type;
+ foreach_overlappable_nb_above(cm, xd, mi_col,
+ max_neighbor_obmc[mi_size_wide_log2[bsize]],
+ dec_build_prediction_by_above_pred, &ctxt);
+
+ xd->mb_to_left_edge = -((mi_col * MI_SIZE) * 8);
+ xd->mb_to_right_edge = ctxt.mb_to_far_edge;
+ xd->mb_to_bottom_edge -= (this_height - pred_height) * 8;
+}
+
+static INLINE void dec_build_prediction_by_left_pred(
+ MACROBLOCKD *xd, int rel_mi_row, uint8_t left_mi_height,
+ MB_MODE_INFO *left_mbmi, void *fun_ctxt, const int num_planes) {
+ struct build_prediction_ctxt *ctxt = (struct build_prediction_ctxt *)fun_ctxt;
+ const int left_mi_row = ctxt->mi_row + rel_mi_row;
+ int mi_x, mi_y;
+ MB_MODE_INFO backup_mbmi = *left_mbmi;
+
+ av1_setup_build_prediction_by_left_pred(xd, rel_mi_row, left_mi_height,
+ &backup_mbmi, ctxt, num_planes);
+ mi_x = ctxt->mi_col << MI_SIZE_LOG2;
+ mi_y = left_mi_row << MI_SIZE_LOG2;
+ const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
+
+ for (int j = 0; j < num_planes; ++j) {
+ const struct macroblockd_plane *pd = &xd->plane[j];
+ int bw = clamp(block_size_wide[bsize] >> (pd->subsampling_x + 1), 4,
+ block_size_wide[BLOCK_64X64] >> (pd->subsampling_x + 1));
+ int bh = (left_mi_height << MI_SIZE_LOG2) >> pd->subsampling_y;
+
+ if (av1_skip_u4x4_pred_in_obmc(bsize, pd, 1)) continue;
+ dec_build_inter_predictors(ctxt->cm, xd, j, &backup_mbmi, 1, bw, bh, mi_x,
+ mi_y);
+ }
+}
+
+static void dec_build_prediction_by_left_preds(
+ const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
+ uint8_t *tmp_buf[MAX_MB_PLANE], int tmp_width[MAX_MB_PLANE],
+ int tmp_height[MAX_MB_PLANE], int tmp_stride[MAX_MB_PLANE]) {
+ if (!xd->left_available) return;
+
+ // Adjust mb_to_right_edge to have the correct value for the OBMC
+ // prediction block. This is half the width of the original block,
+ // except for 128-wide blocks, where we only use a width of 32.
+ int this_width = xd->n4_w * MI_SIZE;
+ int pred_width = AOMMIN(this_width / 2, 32);
+ xd->mb_to_right_edge += (this_width - pred_width) * 8;
+
+ struct build_prediction_ctxt ctxt = { cm, mi_row,
+ mi_col, tmp_buf,
+ tmp_width, tmp_height,
+ tmp_stride, xd->mb_to_bottom_edge };
+ BLOCK_SIZE bsize = xd->mi[0]->sb_type;
+ foreach_overlappable_nb_left(cm, xd, mi_row,
+ max_neighbor_obmc[mi_size_high_log2[bsize]],
+ dec_build_prediction_by_left_pred, &ctxt);
+
+ xd->mb_to_top_edge = -((mi_row * MI_SIZE) * 8);
+ xd->mb_to_right_edge -= (this_width - pred_width) * 8;
+ xd->mb_to_bottom_edge = ctxt.mb_to_far_edge;
+}
+
+static void dec_build_obmc_inter_predictors_sb(const AV1_COMMON *cm,
+ MACROBLOCKD *xd, int mi_row,
+ int mi_col) {
+ const int num_planes = av1_num_planes(cm);
+ uint8_t *dst_buf1[MAX_MB_PLANE], *dst_buf2[MAX_MB_PLANE];
+ int dst_stride1[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+ int dst_stride2[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+ int dst_width1[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+ int dst_width2[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+ int dst_height1[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+ int dst_height2[MAX_MB_PLANE] = { MAX_SB_SIZE, MAX_SB_SIZE, MAX_SB_SIZE };
+
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ int len = sizeof(uint16_t);
+ dst_buf1[0] = CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[0]);
+ dst_buf1[1] =
+ CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE * len);
+ dst_buf1[2] =
+ CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE * 2 * len);
+ dst_buf2[0] = CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[1]);
+ dst_buf2[1] =
+ CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE * len);
+ dst_buf2[2] =
+ CONVERT_TO_BYTEPTR(xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE * 2 * len);
+ } else {
+ dst_buf1[0] = xd->tmp_obmc_bufs[0];
+ dst_buf1[1] = xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE;
+ dst_buf1[2] = xd->tmp_obmc_bufs[0] + MAX_SB_SQUARE * 2;
+ dst_buf2[0] = xd->tmp_obmc_bufs[1];
+ dst_buf2[1] = xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE;
+ dst_buf2[2] = xd->tmp_obmc_bufs[1] + MAX_SB_SQUARE * 2;
+ }
+ dec_build_prediction_by_above_preds(cm, xd, mi_row, mi_col, dst_buf1,
+ dst_width1, dst_height1, dst_stride1);
+ dec_build_prediction_by_left_preds(cm, xd, mi_row, mi_col, dst_buf2,
+ dst_width2, dst_height2, dst_stride2);
+ av1_setup_dst_planes(xd->plane, xd->mi[0]->sb_type, get_frame_new_buffer(cm),
+ mi_row, mi_col, 0, num_planes);
+ av1_build_obmc_inter_prediction(cm, xd, mi_row, mi_col, dst_buf1, dst_stride1,
+ dst_buf2, dst_stride2);
+}
+
+static void cfl_store_inter_block(AV1_COMMON *const cm, MACROBLOCKD *const xd) {
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ if (store_cfl_required(cm, xd)) {
+ cfl_store_block(xd, mbmi->sb_type, mbmi->tx_size);
+ }
+}
+
+static void predict_inter_block(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, BLOCK_SIZE bsize) {
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ const int num_planes = av1_num_planes(cm);
+ for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) {
+ const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
+ if (frame < LAST_FRAME) {
+ assert(is_intrabc_block(mbmi));
+ assert(frame == INTRA_FRAME);
+ assert(ref == 0);
+ } else {
+ RefBuffer *ref_buf = &cm->frame_refs[frame - LAST_FRAME];
+
+ xd->block_refs[ref] = ref_buf;
+ av1_setup_pre_planes(xd, ref, ref_buf->buf, mi_row, mi_col, &ref_buf->sf,
+ num_planes);
+ }
+ }
+
+ dec_build_inter_predictors_sb(cm, xd, mi_row, mi_col, NULL, bsize);
+ if (mbmi->motion_mode == OBMC_CAUSAL) {
+ dec_build_obmc_inter_predictors_sb(cm, xd, mi_row, mi_col);
+ }
+#if CONFIG_MISMATCH_DEBUG
+ for (int plane = 0; plane < num_planes; ++plane) {
+ const struct macroblockd_plane *pd = &xd->plane[plane];
+ int pixel_c, pixel_r;
+ mi_to_pixel_loc(&pixel_c, &pixel_r, mi_col, mi_row, 0, 0, pd->subsampling_x,
+ pd->subsampling_y);
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+ mismatch_check_block_pre(pd->dst.buf, pd->dst.stride, cm->frame_offset,
+ plane, pixel_c, pixel_r, pd->width, pd->height,
+ xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH);
+ }
+#endif
+}
+
+static void set_color_index_map_offset(MACROBLOCKD *const xd, int plane,
+ aom_reader *r) {
+ (void)r;
+ Av1ColorMapParam params;
+ const MB_MODE_INFO *const mbmi = xd->mi[0];
+ av1_get_block_dimensions(mbmi->sb_type, plane, xd, &params.plane_width,
+ &params.plane_height, NULL, NULL);
+ xd->color_index_map_offset[plane] += params.plane_width * params.plane_height;
+}
+
+static void decode_token_recon_block(AV1Decoder *const pbi,
+ ThreadData *const td, int mi_row,
+ int mi_col, aom_reader *r,
+ BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &td->xd;
+ const int num_planes = av1_num_planes(cm);
+
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ CFL_CTX *const cfl = &xd->cfl;
+ cfl->is_chroma_reference = is_chroma_reference(
+ mi_row, mi_col, bsize, cfl->subsampling_x, cfl->subsampling_y);
+
+ if (!is_inter_block(mbmi)) {
+ int row, col;
+ assert(bsize == get_plane_block_size(bsize, xd->plane[0].subsampling_x,
+ xd->plane[0].subsampling_y));
+ const int max_blocks_wide = max_block_wide(xd, bsize, 0);
+ const int max_blocks_high = max_block_high(xd, bsize, 0);
+ const BLOCK_SIZE max_unit_bsize = BLOCK_64X64;
+ int mu_blocks_wide =
+ block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0];
+ int mu_blocks_high =
+ block_size_high[max_unit_bsize] >> tx_size_high_log2[0];
+ mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide);
+ mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high);
+
+ for (row = 0; row < max_blocks_high; row += mu_blocks_high) {
+ for (col = 0; col < max_blocks_wide; col += mu_blocks_wide) {
+ for (int plane = 0; plane < num_planes; ++plane) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+
+ const TX_SIZE tx_size = av1_get_tx_size(plane, xd);
+ const int stepr = tx_size_high_unit[tx_size];
+ const int stepc = tx_size_wide_unit[tx_size];
+
+ const int unit_height = ROUND_POWER_OF_TWO(
+ AOMMIN(mu_blocks_high + row, max_blocks_high), pd->subsampling_y);
+ const int unit_width = ROUND_POWER_OF_TWO(
+ AOMMIN(mu_blocks_wide + col, max_blocks_wide), pd->subsampling_x);
+
+ for (int blk_row = row >> pd->subsampling_y; blk_row < unit_height;
+ blk_row += stepr) {
+ for (int blk_col = col >> pd->subsampling_x; blk_col < unit_width;
+ blk_col += stepc) {
+ td->read_coeffs_tx_intra_block_visit(cm, xd, r, plane, blk_row,
+ blk_col, tx_size);
+ td->predict_and_recon_intra_block_visit(cm, xd, r, plane, blk_row,
+ blk_col, tx_size);
+ set_cb_buffer_offsets(xd, tx_size, plane);
+ }
+ }
+ }
+ }
+ }
+ } else {
+ td->predict_inter_block_visit(cm, xd, mi_row, mi_col, bsize);
+ // Reconstruction
+ if (!mbmi->skip) {
+ int eobtotal = 0;
+
+ const int max_blocks_wide = max_block_wide(xd, bsize, 0);
+ const int max_blocks_high = max_block_high(xd, bsize, 0);
+ int row, col;
+
+ const BLOCK_SIZE max_unit_bsize = BLOCK_64X64;
+ assert(max_unit_bsize ==
+ get_plane_block_size(BLOCK_64X64, xd->plane[0].subsampling_x,
+ xd->plane[0].subsampling_y));
+ int mu_blocks_wide =
+ block_size_wide[max_unit_bsize] >> tx_size_wide_log2[0];
+ int mu_blocks_high =
+ block_size_high[max_unit_bsize] >> tx_size_high_log2[0];
+
+ mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide);
+ mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high);
+
+ for (row = 0; row < max_blocks_high; row += mu_blocks_high) {
+ for (col = 0; col < max_blocks_wide; col += mu_blocks_wide) {
+ for (int plane = 0; plane < num_planes; ++plane) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ if (!is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y))
+ continue;
+ const BLOCK_SIZE bsizec =
+ scale_chroma_bsize(bsize, pd->subsampling_x, pd->subsampling_y);
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(
+ bsizec, pd->subsampling_x, pd->subsampling_y);
+
+ const TX_SIZE max_tx_size =
+ get_vartx_max_txsize(xd, plane_bsize, plane);
+ const int bh_var_tx = tx_size_high_unit[max_tx_size];
+ const int bw_var_tx = tx_size_wide_unit[max_tx_size];
+ int block = 0;
+ int step =
+ tx_size_wide_unit[max_tx_size] * tx_size_high_unit[max_tx_size];
+ int blk_row, blk_col;
+ const int unit_height = ROUND_POWER_OF_TWO(
+ AOMMIN(mu_blocks_high + row, max_blocks_high),
+ pd->subsampling_y);
+ const int unit_width = ROUND_POWER_OF_TWO(
+ AOMMIN(mu_blocks_wide + col, max_blocks_wide),
+ pd->subsampling_x);
+
+ for (blk_row = row >> pd->subsampling_y; blk_row < unit_height;
+ blk_row += bh_var_tx) {
+ for (blk_col = col >> pd->subsampling_x; blk_col < unit_width;
+ blk_col += bw_var_tx) {
+ decode_reconstruct_tx(cm, td, r, mbmi, plane, plane_bsize,
+ blk_row, blk_col, block, max_tx_size,
+ &eobtotal);
+ block += step;
+ }
+ }
+ }
+ }
+ }
+ }
+ td->cfl_store_inter_block_visit(cm, xd);
+ }
+
+ av1_visit_palette(pbi, xd, mi_row, mi_col, r, bsize,
+ set_color_index_map_offset);
+}
+
+#if LOOP_FILTER_BITMASK
+static void store_bitmask_vartx(AV1_COMMON *cm, int mi_row, int mi_col,
+ BLOCK_SIZE bsize, TX_SIZE tx_size,
+ MB_MODE_INFO *mbmi);
+#endif
+
+static void read_tx_size_vartx(MACROBLOCKD *xd, MB_MODE_INFO *mbmi,
+ TX_SIZE tx_size, int depth,
+#if LOOP_FILTER_BITMASK
+ AV1_COMMON *cm, int mi_row, int mi_col,
+#endif
+ int blk_row, int blk_col, aom_reader *r) {
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ int is_split = 0;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const int max_blocks_high = max_block_high(xd, bsize, 0);
+ const int max_blocks_wide = max_block_wide(xd, bsize, 0);
+ if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
+ assert(tx_size > TX_4X4);
+
+ if (depth == MAX_VARTX_DEPTH) {
+ for (int idy = 0; idy < tx_size_high_unit[tx_size]; ++idy) {
+ for (int idx = 0; idx < tx_size_wide_unit[tx_size]; ++idx) {
+ const int index =
+ av1_get_txb_size_index(bsize, blk_row + idy, blk_col + idx);
+ mbmi->inter_tx_size[index] = tx_size;
+ }
+ }
+ mbmi->tx_size = tx_size;
+ txfm_partition_update(xd->above_txfm_context + blk_col,
+ xd->left_txfm_context + blk_row, tx_size, tx_size);
+ return;
+ }
+
+ const int ctx = txfm_partition_context(xd->above_txfm_context + blk_col,
+ xd->left_txfm_context + blk_row,
+ mbmi->sb_type, tx_size);
+ is_split = aom_read_symbol(r, ec_ctx->txfm_partition_cdf[ctx], 2, ACCT_STR);
+
+ if (is_split) {
+ const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
+ const int bsw = tx_size_wide_unit[sub_txs];
+ const int bsh = tx_size_high_unit[sub_txs];
+
+ if (sub_txs == TX_4X4) {
+ for (int idy = 0; idy < tx_size_high_unit[tx_size]; ++idy) {
+ for (int idx = 0; idx < tx_size_wide_unit[tx_size]; ++idx) {
+ const int index =
+ av1_get_txb_size_index(bsize, blk_row + idy, blk_col + idx);
+ mbmi->inter_tx_size[index] = sub_txs;
+ }
+ }
+ mbmi->tx_size = sub_txs;
+ txfm_partition_update(xd->above_txfm_context + blk_col,
+ xd->left_txfm_context + blk_row, sub_txs, tx_size);
+#if LOOP_FILTER_BITMASK
+ store_bitmask_vartx(cm, mi_row + blk_row, mi_col + blk_col, BLOCK_8X8,
+ TX_4X4, mbmi);
+#endif
+ return;
+ }
+#if LOOP_FILTER_BITMASK
+ if (depth + 1 == MAX_VARTX_DEPTH) {
+ store_bitmask_vartx(cm, mi_row + blk_row, mi_col + blk_col,
+ txsize_to_bsize[tx_size], sub_txs, mbmi);
+ }
+#endif
+
+ assert(bsw > 0 && bsh > 0);
+ for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) {
+ for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) {
+ int offsetr = blk_row + row;
+ int offsetc = blk_col + col;
+ read_tx_size_vartx(xd, mbmi, sub_txs, depth + 1,
+#if LOOP_FILTER_BITMASK
+ cm, mi_row, mi_col,
+#endif
+ offsetr, offsetc, r);
+ }
+ }
+ } else {
+ for (int idy = 0; idy < tx_size_high_unit[tx_size]; ++idy) {
+ for (int idx = 0; idx < tx_size_wide_unit[tx_size]; ++idx) {
+ const int index =
+ av1_get_txb_size_index(bsize, blk_row + idy, blk_col + idx);
+ mbmi->inter_tx_size[index] = tx_size;
+ }
+ }
+ mbmi->tx_size = tx_size;
+ txfm_partition_update(xd->above_txfm_context + blk_col,
+ xd->left_txfm_context + blk_row, tx_size, tx_size);
+#if LOOP_FILTER_BITMASK
+ store_bitmask_vartx(cm, mi_row + blk_row, mi_col + blk_col,
+ txsize_to_bsize[tx_size], tx_size, mbmi);
+#endif
+ }
+}
+
+static TX_SIZE read_selected_tx_size(MACROBLOCKD *xd, aom_reader *r) {
+ // TODO(debargha): Clean up the logic here. This function should only
+ // be called for intra.
+ const BLOCK_SIZE bsize = xd->mi[0]->sb_type;
+ const int32_t tx_size_cat = bsize_to_tx_size_cat(bsize);
+ const int max_depths = bsize_to_max_depth(bsize);
+ const int ctx = get_tx_size_context(xd);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ const int depth = aom_read_symbol(r, ec_ctx->tx_size_cdf[tx_size_cat][ctx],
+ max_depths + 1, ACCT_STR);
+ assert(depth >= 0 && depth <= max_depths);
+ const TX_SIZE tx_size = depth_to_tx_size(depth, bsize);
+ 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]->sb_type;
+ if (xd->lossless[xd->mi[0]->segment_id]) return TX_4X4;
+
+ if (block_signals_txsize(bsize)) {
+ if ((!is_inter || allow_select_inter) && tx_mode == TX_MODE_SELECT) {
+ const TX_SIZE coded_tx_size = read_selected_tx_size(xd, r);
+ return coded_tx_size;
+ } else {
+ return tx_size_from_tx_mode(bsize, tx_mode);
+ }
+ } else {
+ assert(IMPLIES(tx_mode == ONLY_4X4, bsize == BLOCK_4X4));
+ return max_txsize_rect_lookup[bsize];
+ }
+}
+
+#if LOOP_FILTER_BITMASK
+static void store_bitmask_vartx(AV1_COMMON *cm, int mi_row, int mi_col,
+ BLOCK_SIZE bsize, TX_SIZE tx_size,
+ MB_MODE_INFO *mbmi) {
+ LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col);
+ const TX_SIZE tx_size_y_vert = txsize_vert_map[tx_size];
+ const TX_SIZE tx_size_y_horz = txsize_horz_map[tx_size];
+ const TX_SIZE tx_size_uv_vert = txsize_vert_map[av1_get_max_uv_txsize(
+ mbmi->sb_type, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y)];
+ const TX_SIZE tx_size_uv_horz = txsize_horz_map[av1_get_max_uv_txsize(
+ mbmi->sb_type, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y)];
+ const int is_square_transform_size = tx_size <= TX_64X64;
+ int mask_id = 0;
+ int offset = 0;
+ const int half_ratio_tx_size_max32 =
+ (tx_size > TX_64X64) & (tx_size <= TX_32X16);
+ if (is_square_transform_size) {
+ switch (tx_size) {
+ case TX_4X4: mask_id = mask_id_table_tx_4x4[bsize]; break;
+ case TX_8X8:
+ mask_id = mask_id_table_tx_8x8[bsize];
+ offset = 19;
+ break;
+ case TX_16X16:
+ mask_id = mask_id_table_tx_16x16[bsize];
+ offset = 33;
+ break;
+ case TX_32X32:
+ mask_id = mask_id_table_tx_32x32[bsize];
+ offset = 42;
+ break;
+ case TX_64X64: mask_id = 46; break;
+ default: assert(!is_square_transform_size); return;
+ }
+ mask_id += offset;
+ } else if (half_ratio_tx_size_max32) {
+ int tx_size_equal_block_size = bsize == txsize_to_bsize[tx_size];
+ mask_id = 47 + 2 * (tx_size - TX_4X8) + (tx_size_equal_block_size ? 0 : 1);
+ } else if (tx_size == TX_32X64) {
+ mask_id = 59;
+ } else if (tx_size == TX_64X32) {
+ mask_id = 60;
+ } else { // quarter ratio tx size
+ mask_id = 61 + (tx_size - TX_4X16);
+ }
+ int index = 0;
+ const int row = mi_row % MI_SIZE_64X64;
+ const int col = mi_col % MI_SIZE_64X64;
+ const int shift = get_index_shift(col, row, &index);
+ const int vert_shift = tx_size_y_vert <= TX_8X8 ? shift : col;
+ for (int i = 0; i + index < 4; ++i) {
+ // y vertical.
+ lfm->tx_size_ver[0][tx_size_y_horz].bits[i + index] |=
+ (left_mask_univariant_reordered[mask_id].bits[i] << vert_shift);
+ // y horizontal.
+ lfm->tx_size_hor[0][tx_size_y_vert].bits[i + index] |=
+ (above_mask_univariant_reordered[mask_id].bits[i] << shift);
+ // u/v vertical.
+ lfm->tx_size_ver[1][tx_size_uv_horz].bits[i + index] |=
+ (left_mask_univariant_reordered[mask_id].bits[i] << vert_shift);
+ // u/v horizontal.
+ lfm->tx_size_hor[1][tx_size_uv_vert].bits[i + index] |=
+ (above_mask_univariant_reordered[mask_id].bits[i] << shift);
+ }
+}
+
+static void store_bitmask_univariant_tx(AV1_COMMON *cm, int mi_row, int mi_col,
+ BLOCK_SIZE bsize, MB_MODE_INFO *mbmi) {
+ // Use a lookup table that provides one bitmask for a given block size and
+ // a univariant transform size.
+ int index;
+ int shift;
+ int row;
+ int col;
+ LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col);
+ const TX_SIZE tx_size_y_vert = txsize_vert_map[mbmi->tx_size];
+ const TX_SIZE tx_size_y_horz = txsize_horz_map[mbmi->tx_size];
+ const TX_SIZE tx_size_uv_vert = txsize_vert_map[av1_get_max_uv_txsize(
+ mbmi->sb_type, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y)];
+ const TX_SIZE tx_size_uv_horz = txsize_horz_map[av1_get_max_uv_txsize(
+ mbmi->sb_type, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y)];
+ const int is_square_transform_size = mbmi->tx_size <= TX_64X64;
+ int mask_id = 0;
+ int offset = 0;
+ const int half_ratio_tx_size_max32 =
+ (mbmi->tx_size > TX_64X64) & (mbmi->tx_size <= TX_32X16);
+ if (is_square_transform_size) {
+ switch (mbmi->tx_size) {
+ case TX_4X4: mask_id = mask_id_table_tx_4x4[bsize]; break;
+ case TX_8X8:
+ mask_id = mask_id_table_tx_8x8[bsize];
+ offset = 19;
+ break;
+ case TX_16X16:
+ mask_id = mask_id_table_tx_16x16[bsize];
+ offset = 33;
+ break;
+ case TX_32X32:
+ mask_id = mask_id_table_tx_32x32[bsize];
+ offset = 42;
+ break;
+ case TX_64X64: mask_id = 46; break;
+ default: assert(!is_square_transform_size); return;
+ }
+ mask_id += offset;
+ } else if (half_ratio_tx_size_max32) {
+ int tx_size_equal_block_size = bsize == txsize_to_bsize[mbmi->tx_size];
+ mask_id =
+ 47 + 2 * (mbmi->tx_size - TX_4X8) + (tx_size_equal_block_size ? 0 : 1);
+ } else if (mbmi->tx_size == TX_32X64) {
+ mask_id = 59;
+ } else if (mbmi->tx_size == TX_64X32) {
+ mask_id = 60;
+ } else { // quarter ratio tx size
+ mask_id = 61 + (mbmi->tx_size - TX_4X16);
+ }
+ row = mi_row % MI_SIZE_64X64;
+ col = mi_col % MI_SIZE_64X64;
+ shift = get_index_shift(col, row, &index);
+ const int vert_shift = tx_size_y_vert <= TX_8X8 ? shift : col;
+ for (int i = 0; i + index < 4; ++i) {
+ // y vertical.
+ lfm->tx_size_ver[0][tx_size_y_horz].bits[i + index] |=
+ (left_mask_univariant_reordered[mask_id].bits[i] << vert_shift);
+ // y horizontal.
+ lfm->tx_size_hor[0][tx_size_y_vert].bits[i + index] |=
+ (above_mask_univariant_reordered[mask_id].bits[i] << shift);
+ // u/v vertical.
+ lfm->tx_size_ver[1][tx_size_uv_horz].bits[i + index] |=
+ (left_mask_univariant_reordered[mask_id].bits[i] << vert_shift);
+ // u/v horizontal.
+ lfm->tx_size_hor[1][tx_size_uv_vert].bits[i + index] |=
+ (above_mask_univariant_reordered[mask_id].bits[i] << shift);
+ }
+}
+
+static void store_bitmask_other_info(AV1_COMMON *cm, int mi_row, int mi_col,
+ BLOCK_SIZE bsize, MB_MODE_INFO *mbmi) {
+ int index;
+ int shift;
+ int row;
+ LoopFilterMask *lfm = get_loop_filter_mask(cm, mi_row, mi_col);
+ const int row_start = mi_row % MI_SIZE_64X64;
+ const int col_start = mi_col % MI_SIZE_64X64;
+ shift = get_index_shift(col_start, row_start, &index);
+ const uint64_t top_edge_mask =
+ ((uint64_t)1 << (shift + mi_size_wide[bsize])) - ((uint64_t)1 << shift);
+ lfm->is_horz_border.bits[index] |= top_edge_mask;
+ const int is_vert_border = mask_id_table_vert_border[bsize];
+ const int vert_shift = block_size_high[bsize] <= 8 ? shift : col_start;
+ for (int i = 0; i + index < 4; ++i) {
+ lfm->is_vert_border.bits[i + index] |=
+ (left_mask_univariant_reordered[is_vert_border].bits[i] << vert_shift);
+ }
+ const int is_skip = mbmi->skip && is_inter_block(mbmi);
+ if (is_skip) {
+ const int is_skip_mask = mask_id_table_tx_4x4[bsize];
+ for (int i = 0; i + index < 4; ++i) {
+ lfm->skip.bits[i + index] |=
+ (above_mask_univariant_reordered[is_skip_mask].bits[i] << shift);
+ }
+ }
+ const uint8_t level_vert_y = get_filter_level(cm, &cm->lf_info, 0, 0, mbmi);
+ const uint8_t level_horz_y = get_filter_level(cm, &cm->lf_info, 1, 0, mbmi);
+ const uint8_t level_u = get_filter_level(cm, &cm->lf_info, 0, 1, mbmi);
+ const uint8_t level_v = get_filter_level(cm, &cm->lf_info, 0, 2, mbmi);
+ for (int r = mi_row; r < mi_row + mi_size_high[bsize]; r++) {
+ index = 0;
+ row = r % MI_SIZE_64X64;
+ memset(&lfm->lfl_y_ver[row][col_start], level_vert_y,
+ sizeof(uint8_t) * mi_size_wide[bsize]);
+ memset(&lfm->lfl_y_hor[row][col_start], level_horz_y,
+ sizeof(uint8_t) * mi_size_wide[bsize]);
+ memset(&lfm->lfl_u[row][col_start], level_u,
+ sizeof(uint8_t) * mi_size_wide[bsize]);
+ memset(&lfm->lfl_v[row][col_start], level_v,
+ sizeof(uint8_t) * mi_size_wide[bsize]);
+ }
+}
+#endif
+
+static void parse_decode_block(AV1Decoder *const pbi, ThreadData *const td,
+ int mi_row, int mi_col, aom_reader *r,
+ PARTITION_TYPE partition, BLOCK_SIZE bsize) {
+ MACROBLOCKD *const xd = &td->xd;
+ decode_mbmi_block(pbi, xd, mi_row, mi_col, r, partition, bsize);
+
+ av1_visit_palette(pbi, xd, mi_row, mi_col, r, bsize,
+ av1_decode_palette_tokens);
+
+ AV1_COMMON *cm = &pbi->common;
+ const int num_planes = av1_num_planes(cm);
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ int inter_block_tx = is_inter_block(mbmi) || is_intrabc_block(mbmi);
+ if (cm->tx_mode == TX_MODE_SELECT && block_signals_txsize(bsize) &&
+ !mbmi->skip && inter_block_tx && !xd->lossless[mbmi->segment_id]) {
+ 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_high_log2[0];
+
+ for (int idy = 0; idy < height; idy += bh)
+ for (int idx = 0; idx < width; idx += bw)
+ read_tx_size_vartx(xd, mbmi, max_tx_size, 0,
+#if LOOP_FILTER_BITMASK
+ cm, mi_row, mi_col,
+#endif
+ idy, idx, r);
+ } else {
+ mbmi->tx_size = read_tx_size(cm, xd, inter_block_tx, !mbmi->skip, r);
+ if (inter_block_tx)
+ memset(mbmi->inter_tx_size, mbmi->tx_size, sizeof(mbmi->inter_tx_size));
+ set_txfm_ctxs(mbmi->tx_size, xd->n4_w, xd->n4_h,
+ mbmi->skip && is_inter_block(mbmi), xd);
+#if LOOP_FILTER_BITMASK
+ const int w = mi_size_wide[bsize];
+ const int h = mi_size_high[bsize];
+ if (w <= mi_size_wide[BLOCK_64X64] && h <= mi_size_high[BLOCK_64X64]) {
+ store_bitmask_univariant_tx(cm, mi_row, mi_col, bsize, mbmi);
+ } else {
+ for (int row = 0; row < h; row += mi_size_high[BLOCK_64X64]) {
+ for (int col = 0; col < w; col += mi_size_wide[BLOCK_64X64]) {
+ store_bitmask_univariant_tx(cm, mi_row + row, mi_col + col,
+ BLOCK_64X64, mbmi);
+ }
+ }
+ }
+#endif
+ }
+#if LOOP_FILTER_BITMASK
+ const int w = mi_size_wide[bsize];
+ const int h = mi_size_high[bsize];
+ if (w <= mi_size_wide[BLOCK_64X64] && h <= mi_size_high[BLOCK_64X64]) {
+ store_bitmask_other_info(cm, mi_row, mi_col, bsize, mbmi);
+ } else {
+ for (int row = 0; row < h; row += mi_size_high[BLOCK_64X64]) {
+ for (int col = 0; col < w; col += mi_size_wide[BLOCK_64X64]) {
+ store_bitmask_other_info(cm, mi_row + row, mi_col + col, BLOCK_64X64,
+ mbmi);
+ }
+ }
+ }
+#endif
+
+ if (cm->delta_q_present_flag) {
+ for (int i = 0; i < MAX_SEGMENTS; i++) {
+ const int current_qindex =
+ av1_get_qindex(&cm->seg, i, xd->current_qindex);
+ for (int j = 0; j < num_planes; ++j) {
+ const int dc_delta_q =
+ j == 0 ? cm->y_dc_delta_q
+ : (j == 1 ? cm->u_dc_delta_q : cm->v_dc_delta_q);
+ const int ac_delta_q =
+ j == 0 ? 0 : (j == 1 ? cm->u_ac_delta_q : cm->v_ac_delta_q);
+ xd->plane[j].seg_dequant_QTX[i][0] = av1_dc_quant_QTX(
+ current_qindex, dc_delta_q, cm->seq_params.bit_depth);
+ xd->plane[j].seg_dequant_QTX[i][1] = av1_ac_quant_QTX(
+ current_qindex, ac_delta_q, cm->seq_params.bit_depth);
+ }
+ }
+ }
+ if (mbmi->skip) av1_reset_skip_context(xd, mi_row, mi_col, bsize, num_planes);
+
+ decode_token_recon_block(pbi, td, mi_row, mi_col, r, bsize);
+
+ int reader_corrupted_flag = aom_reader_has_error(r);
+ aom_merge_corrupted_flag(&xd->corrupted, reader_corrupted_flag);
+}
+
+static void set_offsets_for_pred_and_recon(AV1Decoder *const pbi,
+ ThreadData *const td, int mi_row,
+ int mi_col, BLOCK_SIZE bsize) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &td->xd;
+ const int bw = mi_size_wide[bsize];
+ const int bh = mi_size_high[bsize];
+ const int num_planes = av1_num_planes(cm);
+
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ const TileInfo *const tile = &xd->tile;
+
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->cfl.mi_row = mi_row;
+ xd->cfl.mi_col = mi_col;
+
+ set_plane_n4(xd, bw, bh, num_planes);
+
+ // 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, cm->mi_rows, cm->mi_cols);
+
+ av1_setup_dst_planes(xd->plane, bsize, get_frame_new_buffer(cm), mi_row,
+ mi_col, 0, num_planes);
+}
+
+static void decode_block(AV1Decoder *const pbi, ThreadData *const td,
+ int mi_row, int mi_col, aom_reader *r,
+ PARTITION_TYPE partition, BLOCK_SIZE bsize) {
+ (void)partition;
+ set_offsets_for_pred_and_recon(pbi, td, mi_row, mi_col, bsize);
+ decode_token_recon_block(pbi, td, mi_row, mi_col, r, bsize);
+}
+
+static PARTITION_TYPE read_partition(MACROBLOCKD *xd, int mi_row, int mi_col,
+ aom_reader *r, int has_rows, int has_cols,
+ BLOCK_SIZE bsize) {
+ const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ if (!has_rows && !has_cols) return PARTITION_SPLIT;
+
+ assert(ctx >= 0);
+ aom_cdf_prob *partition_cdf = ec_ctx->partition_cdf[ctx];
+ if (has_rows && has_cols) {
+ return (PARTITION_TYPE)aom_read_symbol(
+ r, partition_cdf, partition_cdf_length(bsize), ACCT_STR);
+ } else if (!has_rows && has_cols) {
+ assert(bsize > BLOCK_8X8);
+ aom_cdf_prob cdf[2];
+ partition_gather_vert_alike(cdf, partition_cdf, bsize);
+ assert(cdf[1] == AOM_ICDF(CDF_PROB_TOP));
+ return aom_read_cdf(r, cdf, 2, ACCT_STR) ? PARTITION_SPLIT : PARTITION_HORZ;
+ } else {
+ assert(has_rows && !has_cols);
+ assert(bsize > BLOCK_8X8);
+ aom_cdf_prob cdf[2];
+ partition_gather_horz_alike(cdf, partition_cdf, bsize);
+ assert(cdf[1] == AOM_ICDF(CDF_PROB_TOP));
+ return aom_read_cdf(r, cdf, 2, ACCT_STR) ? PARTITION_SPLIT : PARTITION_VERT;
+ }
+}
+
+// TODO(slavarnway): eliminate bsize and subsize in future commits
+static void decode_partition(AV1Decoder *const pbi, ThreadData *const td,
+ int mi_row, int mi_col, aom_reader *r,
+ BLOCK_SIZE bsize, int parse_decode_flag) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &td->xd;
+ const int bw = mi_size_wide[bsize];
+ const int hbs = bw >> 1;
+ PARTITION_TYPE partition;
+ BLOCK_SIZE subsize;
+ const int quarter_step = bw / 4;
+ BLOCK_SIZE bsize2 = get_partition_subsize(bsize, PARTITION_SPLIT);
+ 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;
+
+ // parse_decode_flag takes the following values :
+ // 01 - do parse only
+ // 10 - do decode only
+ // 11 - do parse and decode
+ static const block_visitor_fn_t block_visit[4] = {
+ NULL, parse_decode_block, decode_block, parse_decode_block
+ };
+
+ if (parse_decode_flag & 1) {
+ const int num_planes = av1_num_planes(cm);
+ for (int plane = 0; plane < num_planes; ++plane) {
+ int rcol0, rcol1, rrow0, rrow1;
+ if (av1_loop_restoration_corners_in_sb(cm, plane, mi_row, mi_col, bsize,
+ &rcol0, &rcol1, &rrow0, &rrow1)) {
+ const int rstride = cm->rst_info[plane].horz_units_per_tile;
+ for (int rrow = rrow0; rrow < rrow1; ++rrow) {
+ for (int rcol = rcol0; rcol < rcol1; ++rcol) {
+ const int runit_idx = rcol + rrow * rstride;
+ loop_restoration_read_sb_coeffs(cm, xd, r, plane, runit_idx);
+ }
+ }
+ }
+ }
+
+ partition = (bsize < BLOCK_8X8) ? PARTITION_NONE
+ : read_partition(xd, mi_row, mi_col, r,
+ has_rows, has_cols, bsize);
+ } else {
+ partition = get_partition(cm, mi_row, mi_col, bsize);
+ }
+ subsize = get_partition_subsize(bsize, partition);
+
+ // Check the bitstream is conformant: if there is subsampling on the
+ // chroma planes, subsize must subsample to a valid block size.
+ const struct macroblockd_plane *const pd_u = &xd->plane[1];
+ if (get_plane_block_size(subsize, pd_u->subsampling_x, pd_u->subsampling_y) ==
+ BLOCK_INVALID) {
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Block size %dx%d invalid with this subsampling mode",
+ block_size_wide[subsize], block_size_high[subsize]);
+ }
+
+#define DEC_BLOCK_STX_ARG
+#define DEC_BLOCK_EPT_ARG partition,
+#define DEC_BLOCK(db_r, db_c, db_subsize) \
+ block_visit[parse_decode_flag](pbi, td, DEC_BLOCK_STX_ARG(db_r), (db_c), r, \
+ DEC_BLOCK_EPT_ARG(db_subsize))
+#define DEC_PARTITION(db_r, db_c, db_subsize) \
+ decode_partition(pbi, td, DEC_BLOCK_STX_ARG(db_r), (db_c), r, (db_subsize), \
+ parse_decode_flag)
+
+ switch (partition) {
+ case PARTITION_NONE: DEC_BLOCK(mi_row, mi_col, subsize); break;
+ case PARTITION_HORZ:
+ DEC_BLOCK(mi_row, mi_col, subsize);
+ if (has_rows) DEC_BLOCK(mi_row + hbs, mi_col, subsize);
+ break;
+ case PARTITION_VERT:
+ DEC_BLOCK(mi_row, mi_col, subsize);
+ if (has_cols) DEC_BLOCK(mi_row, mi_col + hbs, subsize);
+ break;
+ case PARTITION_SPLIT:
+ DEC_PARTITION(mi_row, mi_col, subsize);
+ DEC_PARTITION(mi_row, mi_col + hbs, subsize);
+ DEC_PARTITION(mi_row + hbs, mi_col, subsize);
+ DEC_PARTITION(mi_row + hbs, mi_col + hbs, subsize);
+ break;
+ case PARTITION_HORZ_A:
+ DEC_BLOCK(mi_row, mi_col, bsize2);
+ DEC_BLOCK(mi_row, mi_col + hbs, bsize2);
+ DEC_BLOCK(mi_row + hbs, mi_col, subsize);
+ break;
+ case PARTITION_HORZ_B:
+ DEC_BLOCK(mi_row, mi_col, subsize);
+ DEC_BLOCK(mi_row + hbs, mi_col, bsize2);
+ DEC_BLOCK(mi_row + hbs, mi_col + hbs, bsize2);
+ break;
+ case PARTITION_VERT_A:
+ DEC_BLOCK(mi_row, mi_col, bsize2);
+ DEC_BLOCK(mi_row + hbs, mi_col, bsize2);
+ DEC_BLOCK(mi_row, mi_col + hbs, subsize);
+ break;
+ case PARTITION_VERT_B:
+ DEC_BLOCK(mi_row, mi_col, subsize);
+ DEC_BLOCK(mi_row, mi_col + hbs, bsize2);
+ DEC_BLOCK(mi_row + hbs, mi_col + hbs, bsize2);
+ break;
+ case PARTITION_HORZ_4:
+ for (int i = 0; i < 4; ++i) {
+ int this_mi_row = mi_row + i * quarter_step;
+ if (i > 0 && this_mi_row >= cm->mi_rows) break;
+ DEC_BLOCK(this_mi_row, mi_col, subsize);
+ }
+ break;
+ case PARTITION_VERT_4:
+ for (int i = 0; i < 4; ++i) {
+ int this_mi_col = mi_col + i * quarter_step;
+ if (i > 0 && this_mi_col >= cm->mi_cols) break;
+ DEC_BLOCK(mi_row, this_mi_col, subsize);
+ }
+ break;
+ default: assert(0 && "Invalid partition type");
+ }
+
+#undef DEC_PARTITION
+#undef DEC_BLOCK
+#undef DEC_BLOCK_EPT_ARG
+#undef DEC_BLOCK_STX_ARG
+
+ if (parse_decode_flag & 1)
+ update_ext_partition_context(xd, mi_row, mi_col, subsize, bsize, partition);
+}
+
+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, uint8_t allow_update_cdf) {
+ // 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 (aom_reader_init(r, data, read_size))
+ aom_internal_error(error_info, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate bool decoder %d", 1);
+
+ r->allow_update_cdf = allow_update_cdf;
+}
+
+static void setup_segmentation(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb) {
+ struct segmentation *const seg = &cm->seg;
+
+ seg->update_map = 0;
+ seg->update_data = 0;
+ seg->temporal_update = 0;
+
+ seg->enabled = aom_rb_read_bit(rb);
+ if (!seg->enabled) {
+ if (cm->cur_frame->seg_map)
+ memset(cm->cur_frame->seg_map, 0, (cm->mi_rows * cm->mi_cols));
+
+ memset(seg, 0, sizeof(*seg));
+ segfeatures_copy(&cm->cur_frame->seg, seg);
+ return;
+ }
+ if (cm->seg.enabled && cm->prev_frame &&
+ (cm->mi_rows == cm->prev_frame->mi_rows) &&
+ (cm->mi_cols == cm->prev_frame->mi_cols)) {
+ cm->last_frame_seg_map = cm->prev_frame->seg_map;
+ } else {
+ cm->last_frame_seg_map = NULL;
+ }
+ // Read update flags
+ if (cm->primary_ref_frame == PRIMARY_REF_NONE) {
+ // These frames can't use previous frames, so must signal map + features
+ seg->update_map = 1;
+ seg->temporal_update = 0;
+ seg->update_data = 1;
+ } else {
+ seg->update_map = aom_rb_read_bit(rb);
+ if (seg->update_map) {
+ seg->temporal_update = aom_rb_read_bit(rb);
+ } else {
+ seg->temporal_update = 0;
+ }
+ seg->update_data = aom_rb_read_bit(rb);
+ }
+
+ // Segmentation data update
+ if (seg->update_data) {
+ av1_clearall_segfeatures(seg);
+
+ for (int i = 0; i < MAX_SEGMENTS; i++) {
+ for (int 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);
+
+ const int data_max = av1_seg_feature_data_max(j);
+ const int data_min = -data_max;
+ const int ubits = get_unsigned_bits(data_max);
+
+ if (av1_is_segfeature_signed(j)) {
+ data = aom_rb_read_inv_signed_literal(rb, ubits);
+ } else {
+ data = aom_rb_read_literal(rb, ubits);
+ }
+
+ data = clamp(data, data_min, data_max);
+ }
+ av1_set_segdata(seg, i, j, data);
+ }
+ }
+ calculate_segdata(seg);
+ } else if (cm->prev_frame) {
+ segfeatures_copy(seg, &cm->prev_frame->seg);
+ }
+ segfeatures_copy(&cm->cur_frame->seg, seg);
+}
+
+static void decode_restoration_mode(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ assert(!cm->all_lossless);
+ const int num_planes = av1_num_planes(cm);
+ if (cm->allow_intrabc) return;
+ int all_none = 1, chroma_none = 1;
+ for (int p = 0; p < num_planes; ++p) {
+ RestorationInfo *rsi = &cm->rst_info[p];
+ 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;
+ }
+ if (rsi->frame_restoration_type != RESTORE_NONE) {
+ all_none = 0;
+ chroma_none &= p == 0;
+ }
+ }
+ if (!all_none) {
+ assert(cm->seq_params.sb_size == BLOCK_64X64 ||
+ cm->seq_params.sb_size == BLOCK_128X128);
+ const int sb_size = cm->seq_params.sb_size == BLOCK_128X128 ? 128 : 64;
+
+ for (int p = 0; p < num_planes; ++p)
+ cm->rst_info[p].restoration_unit_size = sb_size;
+
+ RestorationInfo *rsi = &cm->rst_info[0];
+
+ if (sb_size == 64) {
+ rsi->restoration_unit_size <<= aom_rb_read_bit(rb);
+ }
+ if (rsi->restoration_unit_size > 64) {
+ rsi->restoration_unit_size <<= aom_rb_read_bit(rb);
+ }
+ } else {
+ const int size = RESTORATION_UNITSIZE_MAX;
+ for (int p = 0; p < num_planes; ++p)
+ cm->rst_info[p].restoration_unit_size = size;
+ }
+
+ if (num_planes > 1) {
+ int s = AOMMIN(cm->seq_params.subsampling_x, cm->seq_params.subsampling_y);
+ if (s && !chroma_none) {
+ cm->rst_info[1].restoration_unit_size =
+ cm->rst_info[0].restoration_unit_size >> (aom_rb_read_bit(rb) * s);
+ } else {
+ cm->rst_info[1].restoration_unit_size =
+ cm->rst_info[0].restoration_unit_size;
+ }
+ cm->rst_info[2].restoration_unit_size =
+ cm->rst_info[1].restoration_unit_size;
+ }
+}
+
+static void read_wiener_filter(int wiener_win, WienerInfo *wiener_info,
+ WienerInfo *ref_wiener_info, aom_reader *rb) {
+ memset(wiener_info->vfilter, 0, sizeof(wiener_info->vfilter));
+ memset(wiener_info->hfilter, 0, sizeof(wiener_info->hfilter));
+
+ if (wiener_win == WIENER_WIN)
+ 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, ACCT_STR) +
+ WIENER_FILT_TAP0_MINV;
+ else
+ wiener_info->vfilter[0] = wiener_info->vfilter[WIENER_WIN - 1] = 0;
+ 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, ACCT_STR) +
+ 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, ACCT_STR) +
+ 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]);
+
+ if (wiener_win == WIENER_WIN)
+ 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, ACCT_STR) +
+ WIENER_FILT_TAP0_MINV;
+ else
+ wiener_info->hfilter[0] = wiener_info->hfilter[WIENER_WIN - 1] = 0;
+ 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, ACCT_STR) +
+ 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, ACCT_STR) +
+ 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);
+ const sgr_params_type *params = &sgr_params[sgrproj_info->ep];
+
+ if (params->r[0] == 0) {
+ sgrproj_info->xqd[0] = 0;
+ 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, ACCT_STR) +
+ SGRPROJ_PRJ_MIN1;
+ } else if (params->r[1] == 0) {
+ 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, ACCT_STR) +
+ SGRPROJ_PRJ_MIN0;
+ sgrproj_info->xqd[1] = clamp((1 << SGRPROJ_PRJ_BITS) - sgrproj_info->xqd[0],
+ SGRPROJ_PRJ_MIN1, SGRPROJ_PRJ_MAX1);
+ } else {
+ 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, ACCT_STR) +
+ 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, ACCT_STR) +
+ SGRPROJ_PRJ_MIN1;
+ }
+
+ memcpy(ref_sgrproj_info, sgrproj_info, sizeof(*sgrproj_info));
+}
+
+static void loop_restoration_read_sb_coeffs(const AV1_COMMON *const cm,
+ MACROBLOCKD *xd,
+ aom_reader *const r, int plane,
+ int runit_idx) {
+ const RestorationInfo *rsi = &cm->rst_info[plane];
+ RestorationUnitInfo *rui = &rsi->unit_info[runit_idx];
+ if (rsi->frame_restoration_type == RESTORE_NONE) return;
+
+ assert(!cm->all_lossless);
+
+ const int wiener_win = (plane > 0) ? WIENER_WIN_CHROMA : WIENER_WIN;
+ WienerInfo *wiener_info = xd->wiener_info + plane;
+ SgrprojInfo *sgrproj_info = xd->sgrproj_info + plane;
+
+ if (rsi->frame_restoration_type == RESTORE_SWITCHABLE) {
+ rui->restoration_type =
+ aom_read_symbol(r, xd->tile_ctx->switchable_restore_cdf,
+ RESTORE_SWITCHABLE_TYPES, ACCT_STR);
+ switch (rui->restoration_type) {
+ case RESTORE_WIENER:
+ read_wiener_filter(wiener_win, &rui->wiener_info, wiener_info, r);
+ break;
+ case RESTORE_SGRPROJ:
+ read_sgrproj_filter(&rui->sgrproj_info, sgrproj_info, r);
+ break;
+ default: assert(rui->restoration_type == RESTORE_NONE); break;
+ }
+ } else if (rsi->frame_restoration_type == RESTORE_WIENER) {
+ if (aom_read_symbol(r, xd->tile_ctx->wiener_restore_cdf, 2, ACCT_STR)) {
+ rui->restoration_type = RESTORE_WIENER;
+ read_wiener_filter(wiener_win, &rui->wiener_info, wiener_info, r);
+ } else {
+ rui->restoration_type = RESTORE_NONE;
+ }
+ } else if (rsi->frame_restoration_type == RESTORE_SGRPROJ) {
+ if (aom_read_symbol(r, xd->tile_ctx->sgrproj_restore_cdf, 2, ACCT_STR)) {
+ rui->restoration_type = RESTORE_SGRPROJ;
+ read_sgrproj_filter(&rui->sgrproj_info, sgrproj_info, r);
+ } else {
+ rui->restoration_type = RESTORE_NONE;
+ }
+ }
+}
+
+static void setup_loopfilter(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ const int num_planes = av1_num_planes(cm);
+ struct loopfilter *lf = &cm->lf;
+ if (cm->allow_intrabc || cm->coded_lossless) {
+ // write default deltas to frame buffer
+ av1_set_default_ref_deltas(cm->cur_frame->ref_deltas);
+ av1_set_default_mode_deltas(cm->cur_frame->mode_deltas);
+ return;
+ }
+ assert(!cm->coded_lossless);
+ if (cm->prev_frame) {
+ // write deltas to frame buffer
+ memcpy(lf->ref_deltas, cm->prev_frame->ref_deltas, REF_FRAMES);
+ memcpy(lf->mode_deltas, cm->prev_frame->mode_deltas, MAX_MODE_LF_DELTAS);
+ } else {
+ av1_set_default_ref_deltas(lf->ref_deltas);
+ av1_set_default_mode_deltas(lf->mode_deltas);
+ }
+ lf->filter_level[0] = aom_rb_read_literal(rb, 6);
+ lf->filter_level[1] = aom_rb_read_literal(rb, 6);
+ if (num_planes > 1) {
+ if (lf->filter_level[0] || lf->filter_level[1]) {
+ lf->filter_level_u = aom_rb_read_literal(rb, 6);
+ lf->filter_level_v = 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) {
+ for (int i = 0; i < REF_FRAMES; i++)
+ if (aom_rb_read_bit(rb))
+ lf->ref_deltas[i] = aom_rb_read_inv_signed_literal(rb, 6);
+
+ for (int 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);
+ }
+ }
+
+ // write deltas to frame buffer
+ memcpy(cm->cur_frame->ref_deltas, lf->ref_deltas, REF_FRAMES);
+ memcpy(cm->cur_frame->mode_deltas, lf->mode_deltas, MAX_MODE_LF_DELTAS);
+}
+
+static void setup_cdef(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ const int num_planes = av1_num_planes(cm);
+ if (cm->allow_intrabc) return;
+ cm->cdef_pri_damping = cm->cdef_sec_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 (int 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] =
+ num_planes > 1 ? aom_rb_read_literal(rb, CDEF_STRENGTH_BITS) : 0;
+ }
+}
+
+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) {
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ const int num_planes = av1_num_planes(cm);
+ cm->base_qindex = aom_rb_read_literal(rb, QINDEX_BITS);
+ cm->y_dc_delta_q = read_delta_q(rb);
+ if (num_planes > 1) {
+ int diff_uv_delta = 0;
+ if (seq_params->separate_uv_delta_q) diff_uv_delta = aom_rb_read_bit(rb);
+ cm->u_dc_delta_q = read_delta_q(rb);
+ cm->u_ac_delta_q = read_delta_q(rb);
+ if (diff_uv_delta) {
+ cm->v_dc_delta_q = read_delta_q(rb);
+ cm->v_ac_delta_q = read_delta_q(rb);
+ } else {
+ cm->v_dc_delta_q = cm->u_dc_delta_q;
+ cm->v_ac_delta_q = cm->u_ac_delta_q;
+ }
+ } else {
+ cm->u_dc_delta_q = 0;
+ cm->u_ac_delta_q = 0;
+ cm->v_dc_delta_q = 0;
+ cm->v_ac_delta_q = 0;
+ }
+ cm->dequant_bit_depth = seq_params->bit_depth;
+ cm->using_qmatrix = aom_rb_read_bit(rb);
+ if (cm->using_qmatrix) {
+ cm->qm_y = aom_rb_read_literal(rb, QM_LEVEL_BITS);
+ cm->qm_u = aom_rb_read_literal(rb, QM_LEVEL_BITS);
+ if (!seq_params->separate_uv_delta_q)
+ cm->qm_v = cm->qm_u;
+ else
+ cm->qm_v = aom_rb_read_literal(rb, QM_LEVEL_BITS);
+ } else {
+ cm->qm_y = 0;
+ cm->qm_u = 0;
+ cm->qm_v = 0;
+ }
+}
+
+// Build y/uv dequant values based on segmentation.
+static void setup_segmentation_dequant(AV1_COMMON *const cm) {
+ const int bit_depth = cm->seq_params.bit_depth;
+ const int using_qm = cm->using_qmatrix;
+ // When segmentation is disabled, only the first value is used. The
+ // remaining are don't cares.
+ const int max_segments = cm->seg.enabled ? MAX_SEGMENTS : 1;
+ for (int i = 0; i < max_segments; ++i) {
+ const int qindex = av1_get_qindex(&cm->seg, i, cm->base_qindex);
+ cm->y_dequant_QTX[i][0] =
+ av1_dc_quant_QTX(qindex, cm->y_dc_delta_q, bit_depth);
+ cm->y_dequant_QTX[i][1] = av1_ac_quant_QTX(qindex, 0, bit_depth);
+ cm->u_dequant_QTX[i][0] =
+ av1_dc_quant_QTX(qindex, cm->u_dc_delta_q, bit_depth);
+ cm->u_dequant_QTX[i][1] =
+ av1_ac_quant_QTX(qindex, cm->u_ac_delta_q, bit_depth);
+ cm->v_dequant_QTX[i][0] =
+ av1_dc_quant_QTX(qindex, cm->v_dc_delta_q, bit_depth);
+ cm->v_dequant_QTX[i][1] =
+ av1_ac_quant_QTX(qindex, cm->v_ac_delta_q, bit_depth);
+ const int lossless = qindex == 0 && cm->y_dc_delta_q == 0 &&
+ cm->u_dc_delta_q == 0 && cm->u_ac_delta_q == 0 &&
+ cm->v_dc_delta_q == 0 && cm->v_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
+ int qmlevel = (lossless || using_qm == 0) ? NUM_QM_LEVELS - 1 : cm->qm_y;
+ for (int j = 0; j < TX_SIZES_ALL; ++j) {
+ cm->y_iqmatrix[i][j] = av1_iqmatrix(cm, qmlevel, AOM_PLANE_Y, j);
+ }
+ qmlevel = (lossless || using_qm == 0) ? NUM_QM_LEVELS - 1 : cm->qm_u;
+ for (int j = 0; j < TX_SIZES_ALL; ++j) {
+ cm->u_iqmatrix[i][j] = av1_iqmatrix(cm, qmlevel, AOM_PLANE_U, j);
+ }
+ qmlevel = (lossless || using_qm == 0) ? NUM_QM_LEVELS - 1 : cm->qm_v;
+ for (int j = 0; j < TX_SIZES_ALL; ++j) {
+ cm->v_iqmatrix[i][j] = av1_iqmatrix(cm, qmlevel, AOM_PLANE_V, j);
+ }
+ }
+}
+
+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->superres_upscaled_width;
+ cm->render_height = cm->superres_upscaled_height;
+ if (aom_rb_read_bit(rb))
+ av1_read_frame_size(rb, 16, 16, &cm->render_width, &cm->render_height);
+}
+
+// TODO(afergs): make "struct aom_read_bit_buffer *const rb"?
+static void setup_superres(AV1_COMMON *const cm, struct aom_read_bit_buffer *rb,
+ int *width, int *height) {
+ cm->superres_upscaled_width = *width;
+ cm->superres_upscaled_height = *height;
+
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ if (!seq_params->enable_superres) return;
+
+ if (aom_rb_read_bit(rb)) {
+ cm->superres_scale_denominator =
+ (uint8_t)aom_rb_read_literal(rb, SUPERRES_SCALE_BITS);
+ cm->superres_scale_denominator += SUPERRES_SCALE_DENOMINATOR_MIN;
+ // Don't edit cm->width or cm->height directly, or the buffers won't get
+ // resized correctly
+ av1_calculate_scaled_superres_size(width, height,
+ cm->superres_scale_denominator);
+ } else {
+ // 1:1 scaling - ie. no scaling, scale not provided
+ cm->superres_scale_denominator = SCALE_NUMERATOR;
+ }
+}
+
+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)) {
+ // The cm->mi_* values have been cleared and any existing context
+ // buffers have been freed. Clear cm->width and cm->height to be
+ // consistent and to force a realloc next time.
+ cm->width = 0;
+ cm->height = 0;
+ 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;
+ }
+
+ ensure_mv_buffer(cm->cur_frame, cm);
+ cm->cur_frame->width = cm->width;
+ cm->cur_frame->height = cm->height;
+}
+
+static void setup_buffer_pool(AV1_COMMON *cm) {
+ BufferPool *const pool = cm->buffer_pool;
+ const SequenceHeader *const seq_params = &cm->seq_params;
+
+ lock_buffer_pool(pool);
+ if (aom_realloc_frame_buffer(
+ get_frame_new_buffer(cm), cm->width, cm->height,
+ seq_params->subsampling_x, seq_params->subsampling_y,
+ seq_params->use_highbitdepth, 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 =
+ seq_params->subsampling_x;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y =
+ seq_params->subsampling_y;
+ pool->frame_bufs[cm->new_fb_idx].buf.bit_depth =
+ (unsigned int)seq_params->bit_depth;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_primaries =
+ seq_params->color_primaries;
+ pool->frame_bufs[cm->new_fb_idx].buf.transfer_characteristics =
+ seq_params->transfer_characteristics;
+ pool->frame_bufs[cm->new_fb_idx].buf.matrix_coefficients =
+ seq_params->matrix_coefficients;
+ pool->frame_bufs[cm->new_fb_idx].buf.monochrome = seq_params->monochrome;
+ pool->frame_bufs[cm->new_fb_idx].buf.chroma_sample_position =
+ seq_params->chroma_sample_position;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_range = seq_params->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 setup_frame_size(AV1_COMMON *cm, int frame_size_override_flag,
+ struct aom_read_bit_buffer *rb) {
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ int width, height;
+
+ if (frame_size_override_flag) {
+ int num_bits_width = seq_params->num_bits_width;
+ int num_bits_height = seq_params->num_bits_height;
+ av1_read_frame_size(rb, num_bits_width, num_bits_height, &width, &height);
+ if (width > seq_params->max_frame_width ||
+ height > seq_params->max_frame_height) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Frame dimensions are larger than the maximum values");
+ }
+ } else {
+ width = seq_params->max_frame_width;
+ height = seq_params->max_frame_height;
+ }
+
+ setup_superres(cm, rb, &width, &height);
+ resize_context_buffers(cm, width, height);
+ setup_render_size(cm, rb);
+ setup_buffer_pool(cm);
+}
+
+static void setup_sb_size(SequenceHeader *seq_params,
+ struct aom_read_bit_buffer *rb) {
+ set_sb_size(seq_params, aom_rb_read_bit(rb) ? BLOCK_128X128 : BLOCK_64X64);
+}
+
+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;
+ int has_valid_ref_frame = 0;
+ for (int 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;
+ setup_superres(cm, rb, &width, &height);
+ resize_context_buffers(cm, width, height);
+ found = 1;
+ break;
+ }
+ }
+
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ if (!found) {
+ int num_bits_width = seq_params->num_bits_width;
+ int num_bits_height = seq_params->num_bits_height;
+
+ av1_read_frame_size(rb, num_bits_width, num_bits_height, &width, &height);
+ setup_superres(cm, rb, &width, &height);
+ resize_context_buffers(cm, 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 (int 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 (int 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, seq_params->bit_depth,
+ seq_params->subsampling_x, seq_params->subsampling_y))
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Referenced frame has incompatible color format");
+ }
+ setup_buffer_pool(cm);
+}
+
+// Same function as av1_read_uniform but reading from uncompresses header wb
+static int rb_read_uniform(struct aom_read_bit_buffer *const rb, int n) {
+ const int l = get_unsigned_bits(n);
+ const int m = (1 << l) - n;
+ const int v = aom_rb_read_literal(rb, l - 1);
+ assert(l != 0);
+ if (v < m)
+ return v;
+ else
+ return (v << 1) - m + aom_rb_read_bit(rb);
+}
+
+static void read_tile_info_max_tile(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *const rb) {
+ int width_mi = ALIGN_POWER_OF_TWO(cm->mi_cols, cm->seq_params.mib_size_log2);
+ int height_mi = ALIGN_POWER_OF_TWO(cm->mi_rows, cm->seq_params.mib_size_log2);
+ int width_sb = width_mi >> cm->seq_params.mib_size_log2;
+ int height_sb = height_mi >> cm->seq_params.mib_size_log2;
+
+ av1_get_tile_limits(cm);
+ cm->uniform_tile_spacing_flag = aom_rb_read_bit(rb);
+
+ // Read tile columns
+ if (cm->uniform_tile_spacing_flag) {
+ cm->log2_tile_cols = cm->min_log2_tile_cols;
+ while (cm->log2_tile_cols < cm->max_log2_tile_cols) {
+ if (!aom_rb_read_bit(rb)) {
+ break;
+ }
+ cm->log2_tile_cols++;
+ }
+ } else {
+ int i;
+ int start_sb;
+ for (i = 0, start_sb = 0; width_sb > 0 && i < MAX_TILE_COLS; i++) {
+ const int size_sb =
+ 1 + rb_read_uniform(rb, AOMMIN(width_sb, cm->max_tile_width_sb));
+ cm->tile_col_start_sb[i] = start_sb;
+ start_sb += size_sb;
+ width_sb -= size_sb;
+ }
+ cm->tile_cols = i;
+ cm->tile_col_start_sb[i] = start_sb + width_sb;
+ }
+ av1_calculate_tile_cols(cm);
+
+ // Read tile rows
+ if (cm->uniform_tile_spacing_flag) {
+ cm->log2_tile_rows = cm->min_log2_tile_rows;
+ while (cm->log2_tile_rows < cm->max_log2_tile_rows) {
+ if (!aom_rb_read_bit(rb)) {
+ break;
+ }
+ cm->log2_tile_rows++;
+ }
+ } else {
+ int i;
+ int start_sb;
+ for (i = 0, start_sb = 0; height_sb > 0 && i < MAX_TILE_ROWS; i++) {
+ const int size_sb =
+ 1 + rb_read_uniform(rb, AOMMIN(height_sb, cm->max_tile_height_sb));
+ cm->tile_row_start_sb[i] = start_sb;
+ start_sb += size_sb;
+ height_sb -= size_sb;
+ }
+ cm->tile_rows = i;
+ cm->tile_row_start_sb[i] = start_sb + height_sb;
+ }
+ av1_calculate_tile_rows(cm);
+}
+
+void av1_set_single_tile_decoding_mode(AV1_COMMON *const cm) {
+ cm->single_tile_decoding = 0;
+ if (cm->large_scale_tile) {
+ struct loopfilter *lf = &cm->lf;
+
+ // Figure out single_tile_decoding by loopfilter_level.
+ const int no_loopfilter = !(lf->filter_level[0] || lf->filter_level[1]);
+ const int no_cdef = cm->cdef_bits == 0 && cm->cdef_strengths[0] == 0 &&
+ cm->cdef_uv_strengths[0] == 0;
+ const int no_restoration =
+ 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;
+ assert(IMPLIES(cm->coded_lossless, no_loopfilter && no_cdef));
+ assert(IMPLIES(cm->all_lossless, no_restoration));
+ cm->single_tile_decoding = no_loopfilter && no_cdef && no_restoration;
+ }
+}
+
+static void read_tile_info(AV1Decoder *const pbi,
+ struct aom_read_bit_buffer *const rb) {
+ AV1_COMMON *const cm = &pbi->common;
+
+ read_tile_info_max_tile(cm, rb);
+
+ cm->context_update_tile_id = 0;
+ if (cm->tile_rows * cm->tile_cols > 1) {
+ // tile to use for cdf update
+ cm->context_update_tile_id =
+ aom_rb_read_literal(rb, cm->log2_tile_rows + cm->log2_tile_cols);
+ if (cm->context_update_tile_id >= cm->tile_rows * cm->tile_cols) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid context_update_tile_id");
+ }
+ // tile size magnitude
+ pbi->tile_size_bytes = aom_rb_read_literal(rb, 2) + 1;
+ }
+}
+
+#if EXT_TILE_DEBUG
+static void read_ext_tile_info(AV1Decoder *const pbi,
+ struct aom_read_bit_buffer *const rb) {
+ AV1_COMMON *const cm = &pbi->common;
+
+ // This information is stored as a separate byte.
+ int mod = rb->bit_offset % CHAR_BIT;
+ if (mod > 0) aom_rb_read_literal(rb, CHAR_BIT - mod);
+ assert(rb->bit_offset % CHAR_BIT == 0);
+
+ 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;
+ }
+}
+#endif // EXT_TILE_DEBUG
+
+static size_t 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(0 && "Invalid size"); return -1;
+ }
+}
+
+#if EXT_TILE_DEBUG
+// Reads the next tile returning its size and adjusting '*data' accordingly
+// based on 'is_last'. On return, '*data' is updated to point to the end of the
+// raw tile buffer in the bit stream.
+static void get_ls_tile_buffer(
+ const uint8_t *const data_end, struct aom_internal_error_info *error_info,
+ const uint8_t **data, TileBufferDec (*const tile_buffers)[MAX_TILE_COLS],
+ int tile_size_bytes, int col, int row, int tile_copy_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");
+ size = mem_get_varsize(*data, tile_size_bytes);
+
+ // If tile_copy_mode = 1, then the top bit of the tile header indicates copy
+ // mode.
+ if (tile_copy_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;
+ } else {
+ size += AV1_MIN_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");
+
+ 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;
+}
+
+// Returns the end of the last tile buffer
+// (tile_buffers[cm->tile_rows - 1][cm->tile_cols - 1]).
+static const uint8_t *get_ls_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;
+ const uint8_t *raw_data_end; // The end of the last tile buffer
+
+ if (!have_tiles) {
+ const size_t tile_size = data_end - data;
+ tile_buffers[0][0].data = data;
+ tile_buffers[0][0].size = tile_size;
+ 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] = { NULL };
+ 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;
+ const int tile_copy_mode =
+ ((AOMMAX(cm->tile_width, cm->tile_height) << MI_SIZE_LOG2) <= 256) ? 1
+ : 0;
+ // Read tile column sizes for all columns (we need the last tile buffer)
+ for (int c = 0; c < tile_cols; ++c) {
+ const int is_last = c == tile_cols - 1;
+ size_t tile_col_size;
+
+ 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 (int 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 (int r = 0; r < (is_last ? tile_rows : tile_rows_end); ++r) {
+ get_ls_tile_buffer(tile_col_data_end[c], &pbi->common.error, &data,
+ tile_buffers, tile_size_bytes, c, r, tile_copy_mode);
+ }
+ }
+
+ // If we have not read the last column, then read it to get the last tile.
+ if (tile_cols_end != tile_cols) {
+ const int c = tile_cols - 1;
+
+ data = tile_col_data_end[c - 1];
+
+ for (int r = 0; r < tile_rows; ++r) {
+ get_ls_tile_buffer(tile_col_data_end[c], &pbi->common.error, &data,
+ tile_buffers, tile_size_bytes, c, r, tile_copy_mode);
+ }
+ }
+ raw_data_end = data;
+ }
+ return raw_data_end;
+}
+#endif // EXT_TILE_DEBUG
+
+static const uint8_t *get_ls_single_tile_buffer(
+ AV1Decoder *pbi, const uint8_t *data,
+ TileBufferDec (*const tile_buffers)[MAX_TILE_COLS]) {
+ assert(pbi->dec_tile_row >= 0 && pbi->dec_tile_col >= 0);
+ tile_buffers[pbi->dec_tile_row][pbi->dec_tile_col].data = data;
+ tile_buffers[pbi->dec_tile_row][pbi->dec_tile_col].size =
+ (size_t)pbi->coded_tile_data_size;
+ return data + pbi->coded_tile_data_size;
+}
+
+// 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, 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");
+
+ size = mem_get_varsize(*data, tile_size_bytes) + AV1_MIN_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],
+ int start_tile, int end_tile) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ int tc = 0;
+ int first_tile_in_tg = 0;
+
+ for (int r = 0; r < tile_rows; ++r) {
+ for (int c = 0; c < tile_cols; ++c, ++tc) {
+ TileBufferDec *const buf = &tile_buffers[r][c];
+
+ const int is_last = (tc == end_tile);
+ const size_t hdr_offset = 0;
+
+ if (tc < start_tile || tc > end_tile) continue;
+
+ if (data + hdr_offset >= data_end)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Data ended before all tiles were read.");
+ 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, buf);
+ }
+ }
+}
+
+static void set_cb_buffer(AV1Decoder *pbi, MACROBLOCKD *const xd,
+ CB_BUFFER *cb_buffer_base, const int num_planes,
+ int mi_row, int mi_col) {
+ AV1_COMMON *const cm = &pbi->common;
+ int mib_size_log2 = cm->seq_params.mib_size_log2;
+ int stride = (cm->mi_cols >> mib_size_log2) + 1;
+ int offset = (mi_row >> mib_size_log2) * stride + (mi_col >> mib_size_log2);
+ CB_BUFFER *cb_buffer = cb_buffer_base + offset;
+
+ for (int plane = 0; plane < num_planes; ++plane) {
+ xd->plane[plane].dqcoeff_block = cb_buffer->dqcoeff[plane];
+ xd->plane[plane].eob_data = cb_buffer->eob_data[plane];
+ xd->cb_offset[plane] = 0;
+ xd->txb_offset[plane] = 0;
+ }
+ xd->plane[0].color_index_map = cb_buffer->color_index_map[0];
+ xd->plane[1].color_index_map = cb_buffer->color_index_map[1];
+ xd->color_index_map_offset[0] = 0;
+ xd->color_index_map_offset[1] = 0;
+}
+
+static void decoder_alloc_tile_data(AV1Decoder *pbi, const int n_tiles) {
+ AV1_COMMON *const cm = &pbi->common;
+ 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;
+ for (int i = 0; i < n_tiles; i++) {
+ TileDataDec *const tile_data = pbi->tile_data + i;
+ av1_zero(tile_data->dec_row_mt_sync);
+ }
+ pbi->allocated_row_mt_sync_rows = 0;
+}
+
+// Set up nsync by width.
+static INLINE int get_sync_range(int width) {
+// nsync numbers are picked by testing.
+#if 0
+ if (width < 640)
+ return 1;
+ else if (width <= 1280)
+ return 2;
+ else if (width <= 4096)
+ return 4;
+ else
+ return 8;
+#else
+ (void)width;
+#endif
+ return 1;
+}
+
+// Allocate memory for decoder row synchronization
+static void dec_row_mt_alloc(AV1DecRowMTSync *dec_row_mt_sync, AV1_COMMON *cm,
+ int rows) {
+ dec_row_mt_sync->allocated_sb_rows = rows;
+#if CONFIG_MULTITHREAD
+ {
+ int i;
+
+ CHECK_MEM_ERROR(cm, dec_row_mt_sync->mutex_,
+ aom_malloc(sizeof(*(dec_row_mt_sync->mutex_)) * rows));
+ if (dec_row_mt_sync->mutex_) {
+ for (i = 0; i < rows; ++i) {
+ pthread_mutex_init(&dec_row_mt_sync->mutex_[i], NULL);
+ }
+ }
+
+ CHECK_MEM_ERROR(cm, dec_row_mt_sync->cond_,
+ aom_malloc(sizeof(*(dec_row_mt_sync->cond_)) * rows));
+ if (dec_row_mt_sync->cond_) {
+ for (i = 0; i < rows; ++i) {
+ pthread_cond_init(&dec_row_mt_sync->cond_[i], NULL);
+ }
+ }
+ }
+#endif // CONFIG_MULTITHREAD
+
+ CHECK_MEM_ERROR(cm, dec_row_mt_sync->cur_sb_col,
+ aom_malloc(sizeof(*(dec_row_mt_sync->cur_sb_col)) * rows));
+
+ // Set up nsync.
+ dec_row_mt_sync->sync_range = get_sync_range(cm->width);
+}
+
+// Deallocate decoder row synchronization related mutex and data
+void av1_dec_row_mt_dealloc(AV1DecRowMTSync *dec_row_mt_sync) {
+ if (dec_row_mt_sync != NULL) {
+#if CONFIG_MULTITHREAD
+ int i;
+ if (dec_row_mt_sync->mutex_ != NULL) {
+ for (i = 0; i < dec_row_mt_sync->allocated_sb_rows; ++i) {
+ pthread_mutex_destroy(&dec_row_mt_sync->mutex_[i]);
+ }
+ aom_free(dec_row_mt_sync->mutex_);
+ }
+ if (dec_row_mt_sync->cond_ != NULL) {
+ for (i = 0; i < dec_row_mt_sync->allocated_sb_rows; ++i) {
+ pthread_cond_destroy(&dec_row_mt_sync->cond_[i]);
+ }
+ aom_free(dec_row_mt_sync->cond_);
+ }
+#endif // CONFIG_MULTITHREAD
+ aom_free(dec_row_mt_sync->cur_sb_col);
+
+ // clear the structure as the source of this call may be a resize in which
+ // case this call will be followed by an _alloc() which may fail.
+ av1_zero(*dec_row_mt_sync);
+ }
+}
+
+static INLINE void sync_read(AV1DecRowMTSync *const dec_row_mt_sync, int r,
+ int c) {
+#if CONFIG_MULTITHREAD
+ const int nsync = dec_row_mt_sync->sync_range;
+
+ if (r && !(c & (nsync - 1))) {
+ pthread_mutex_t *const mutex = &dec_row_mt_sync->mutex_[r - 1];
+ pthread_mutex_lock(mutex);
+
+ while (c > dec_row_mt_sync->cur_sb_col[r - 1] - nsync) {
+ pthread_cond_wait(&dec_row_mt_sync->cond_[r - 1], mutex);
+ }
+ pthread_mutex_unlock(mutex);
+ }
+#else
+ (void)dec_row_mt_sync;
+ (void)r;
+ (void)c;
+#endif // CONFIG_MULTITHREAD
+}
+
+static INLINE void sync_write(AV1DecRowMTSync *const dec_row_mt_sync, int r,
+ int c, const int sb_cols) {
+#if CONFIG_MULTITHREAD
+ const int nsync = dec_row_mt_sync->sync_range;
+ int cur;
+ int sig = 1;
+
+ if (c < sb_cols - 1) {
+ cur = c;
+ if (c % nsync) sig = 0;
+ } else {
+ cur = sb_cols + nsync;
+ }
+
+ if (sig) {
+ pthread_mutex_lock(&dec_row_mt_sync->mutex_[r]);
+
+ dec_row_mt_sync->cur_sb_col[r] = cur;
+
+ pthread_cond_signal(&dec_row_mt_sync->cond_[r]);
+ pthread_mutex_unlock(&dec_row_mt_sync->mutex_[r]);
+ }
+#else
+ (void)dec_row_mt_sync;
+ (void)r;
+ (void)c;
+ (void)sb_cols;
+#endif // CONFIG_MULTITHREAD
+}
+
+static void decode_tile_sb_row(AV1Decoder *pbi, ThreadData *const td,
+ TileInfo tile_info, const int mi_row) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int num_planes = av1_num_planes(cm);
+ TileDataDec *const tile_data =
+ pbi->tile_data + tile_info.tile_row * cm->tile_cols + tile_info.tile_col;
+ const int sb_cols_in_tile = av1_get_sb_cols_in_tile(cm, tile_info);
+ const int sb_row_in_tile =
+ (mi_row - tile_info.mi_row_start) >> cm->seq_params.mib_size_log2;
+ int sb_col_in_tile = 0;
+
+ for (int mi_col = tile_info.mi_col_start; mi_col < tile_info.mi_col_end;
+ mi_col += cm->seq_params.mib_size, sb_col_in_tile++) {
+ set_cb_buffer(pbi, &td->xd, pbi->cb_buffer_base, num_planes, mi_row,
+ mi_col);
+
+ sync_read(&tile_data->dec_row_mt_sync, sb_row_in_tile, sb_col_in_tile);
+
+ // Decoding of the super-block
+ decode_partition(pbi, td, mi_row, mi_col, td->bit_reader,
+ cm->seq_params.sb_size, 0x2);
+
+ sync_write(&tile_data->dec_row_mt_sync, sb_row_in_tile, sb_col_in_tile,
+ sb_cols_in_tile);
+ }
+}
+
+static int check_trailing_bits_after_symbol_coder(aom_reader *r) {
+ if (aom_reader_has_overflowed(r)) return -1;
+
+ uint32_t nb_bits = aom_reader_tell(r);
+ uint32_t nb_bytes = (nb_bits + 7) >> 3;
+ const uint8_t *p = aom_reader_find_begin(r) + nb_bytes;
+
+ // aom_reader_tell() returns 1 for a newly initialized decoder, and the
+ // return value only increases as values are decoded. So nb_bits > 0, and
+ // thus p > p_begin. Therefore accessing p[-1] is safe.
+ uint8_t last_byte = p[-1];
+ uint8_t pattern = 128 >> ((nb_bits - 1) & 7);
+ if ((last_byte & (2 * pattern - 1)) != pattern) return -1;
+
+ // Make sure that all padding bytes are zero as required by the spec.
+ const uint8_t *p_end = aom_reader_find_end(r);
+ while (p < p_end) {
+ if (*p != 0) return -1;
+ p++;
+ }
+ return 0;
+}
+
+static void set_decode_func_pointers(ThreadData *td, int parse_decode_flag) {
+ td->read_coeffs_tx_intra_block_visit = decode_block_void;
+ td->predict_and_recon_intra_block_visit = decode_block_void;
+ td->read_coeffs_tx_inter_block_visit = decode_block_void;
+ td->inverse_tx_inter_block_visit = decode_block_void;
+ td->predict_inter_block_visit = predict_inter_block_void;
+ td->cfl_store_inter_block_visit = cfl_store_inter_block_void;
+
+ if (parse_decode_flag & 0x1) {
+ td->read_coeffs_tx_intra_block_visit = read_coeffs_tx_intra_block;
+ td->read_coeffs_tx_inter_block_visit = av1_read_coeffs_txb_facade;
+ }
+ if (parse_decode_flag & 0x2) {
+ td->predict_and_recon_intra_block_visit =
+ predict_and_reconstruct_intra_block;
+ td->inverse_tx_inter_block_visit = inverse_transform_inter_block;
+ td->predict_inter_block_visit = predict_inter_block;
+ td->cfl_store_inter_block_visit = cfl_store_inter_block;
+ }
+}
+
+static void decode_tile(AV1Decoder *pbi, ThreadData *const td, int tile_row,
+ int tile_col) {
+ TileInfo tile_info;
+
+ AV1_COMMON *const cm = &pbi->common;
+ const int num_planes = av1_num_planes(cm);
+
+ av1_tile_set_row(&tile_info, cm, tile_row);
+ av1_tile_set_col(&tile_info, cm, tile_col);
+ av1_zero_above_context(cm, &td->xd, tile_info.mi_col_start,
+ tile_info.mi_col_end, tile_row);
+ av1_reset_loop_filter_delta(&td->xd, num_planes);
+ av1_reset_loop_restoration(&td->xd, num_planes);
+
+ for (int mi_row = tile_info.mi_row_start; mi_row < tile_info.mi_row_end;
+ mi_row += cm->seq_params.mib_size) {
+ av1_zero_left_context(&td->xd);
+
+ for (int mi_col = tile_info.mi_col_start; mi_col < tile_info.mi_col_end;
+ mi_col += cm->seq_params.mib_size) {
+ set_cb_buffer(pbi, &td->xd, &td->cb_buffer_base, num_planes, 0, 0);
+
+ // Bit-stream parsing and decoding of the superblock
+ decode_partition(pbi, td, mi_row, mi_col, td->bit_reader,
+ cm->seq_params.sb_size, 0x3);
+
+ if (aom_reader_has_overflowed(td->bit_reader)) {
+ aom_merge_corrupted_flag(&td->xd.corrupted, 1);
+ return;
+ }
+ }
+ }
+
+ int corrupted =
+ (check_trailing_bits_after_symbol_coder(td->bit_reader)) ? 1 : 0;
+ aom_merge_corrupted_flag(&td->xd.corrupted, corrupted);
+}
+
+static const uint8_t *decode_tiles(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end, int start_tile,
+ int end_tile) {
+ AV1_COMMON *const cm = &pbi->common;
+ ThreadData *const td = &pbi->td;
+ 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;
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ int tile_rows_start;
+ int tile_rows_end;
+ int tile_cols_start;
+ int tile_cols_end;
+ int inv_col_order;
+ int inv_row_order;
+ int tile_row, tile_col;
+ uint8_t allow_update_cdf;
+ const uint8_t *raw_data_end = NULL;
+
+ if (cm->large_scale_tile) {
+ tile_rows_start = single_row ? dec_tile_row : 0;
+ tile_rows_end = single_row ? dec_tile_row + 1 : tile_rows;
+ tile_cols_start = single_col ? dec_tile_col : 0;
+ tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+ inv_col_order = pbi->inv_tile_order && !single_col;
+ inv_row_order = pbi->inv_tile_order && !single_row;
+ allow_update_cdf = 0;
+ } else {
+ tile_rows_start = 0;
+ tile_rows_end = tile_rows;
+ tile_cols_start = 0;
+ tile_cols_end = tile_cols;
+ inv_col_order = pbi->inv_tile_order;
+ inv_row_order = pbi->inv_tile_order;
+ allow_update_cdf = 1;
+ }
+
+ // No tiles to decode.
+ if (tile_rows_end <= tile_rows_start || tile_cols_end <= tile_cols_start ||
+ // First tile is larger than end_tile.
+ tile_rows_start * cm->tile_cols + tile_cols_start > end_tile ||
+ // Last tile is smaller than start_tile.
+ (tile_rows_end - 1) * cm->tile_cols + tile_cols_end - 1 < start_tile)
+ return data;
+
+ allow_update_cdf = allow_update_cdf && !cm->disable_cdf_update;
+
+ assert(tile_rows <= MAX_TILE_ROWS);
+ assert(tile_cols <= MAX_TILE_COLS);
+
+#if EXT_TILE_DEBUG
+ if (cm->large_scale_tile && !pbi->ext_tile_debug)
+ raw_data_end = get_ls_single_tile_buffer(pbi, data, tile_buffers);
+ else if (cm->large_scale_tile && pbi->ext_tile_debug)
+ raw_data_end = get_ls_tile_buffers(pbi, data, data_end, tile_buffers);
+ else
+#endif // EXT_TILE_DEBUG
+ get_tile_buffers(pbi, data, data_end, tile_buffers, start_tile, end_tile);
+
+ if (pbi->tile_data == NULL || n_tiles != pbi->allocated_tiles) {
+ decoder_alloc_tile_data(pbi, n_tiles);
+ }
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ aom_accounting_reset(&pbi->accounting);
+ }
+#endif
+
+ set_decode_func_pointers(&pbi->td, 0x3);
+
+ // Load all tile information into thread_data.
+ td->xd = pbi->mb;
+ td->xd.corrupted = 0;
+ td->xd.mc_buf[0] = td->mc_buf[0];
+ td->xd.mc_buf[1] = td->mc_buf[1];
+ td->xd.tmp_conv_dst = td->tmp_conv_dst;
+ for (int j = 0; j < 2; ++j) {
+ td->xd.tmp_obmc_bufs[j] = td->tmp_obmc_bufs[j];
+ }
+
+ 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;
+
+ 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;
+ TileDataDec *const tile_data = pbi->tile_data + row * cm->tile_cols + col;
+ const TileBufferDec *const tile_bs_buf = &tile_buffers[row][col];
+
+ if (row * cm->tile_cols + col < start_tile ||
+ row * cm->tile_cols + col > end_tile)
+ continue;
+
+ td->bit_reader = &tile_data->bit_reader;
+ av1_zero(td->dqcoeff);
+ av1_tile_init(&td->xd.tile, cm, row, col);
+ td->xd.current_qindex = cm->base_qindex;
+ setup_bool_decoder(tile_bs_buf->data, data_end, tile_bs_buf->size,
+ &cm->error, td->bit_reader, allow_update_cdf);
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ td->bit_reader->accounting = &pbi->accounting;
+ td->bit_reader->accounting->last_tell_frac =
+ aom_reader_tell_frac(td->bit_reader);
+ } else {
+ td->bit_reader->accounting = NULL;
+ }
+#endif
+ av1_init_macroblockd(cm, &td->xd, td->dqcoeff);
+ av1_init_above_context(cm, &td->xd, row);
+
+ // Initialise the tile context from the frame context
+ tile_data->tctx = *cm->fc;
+ td->xd.tile_ctx = &tile_data->tctx;
+
+ // decode tile
+ decode_tile(pbi, td, row, col);
+ 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 (cm->large_scale_tile) {
+ if (n_tiles == 1) {
+ // Find the end of the single tile buffer
+ return aom_reader_find_end(&pbi->tile_data->bit_reader);
+ }
+ // Return the end of the last tile buffer
+ return raw_data_end;
+ }
+ TileDataDec *const tile_data = pbi->tile_data + end_tile;
+
+ return aom_reader_find_end(&tile_data->bit_reader);
+}
+
+static TileJobsDec *get_dec_job_info(AV1DecTileMT *tile_mt_info) {
+ TileJobsDec *cur_job_info = NULL;
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(tile_mt_info->job_mutex);
+
+ if (tile_mt_info->jobs_dequeued < tile_mt_info->jobs_enqueued) {
+ cur_job_info = tile_mt_info->job_queue + tile_mt_info->jobs_dequeued;
+ tile_mt_info->jobs_dequeued++;
+ }
+
+ pthread_mutex_unlock(tile_mt_info->job_mutex);
+#else
+ (void)tile_mt_info;
+#endif
+ return cur_job_info;
+}
+
+static void tile_worker_hook_init(AV1Decoder *const pbi,
+ DecWorkerData *const thread_data,
+ const TileBufferDec *const tile_buffer,
+ TileDataDec *const tile_data,
+ uint8_t allow_update_cdf) {
+ AV1_COMMON *cm = &pbi->common;
+ ThreadData *const td = thread_data->td;
+ int tile_row = tile_data->tile_info.tile_row;
+ int tile_col = tile_data->tile_info.tile_col;
+
+ td->bit_reader = &tile_data->bit_reader;
+ av1_zero(td->dqcoeff);
+ av1_tile_init(&td->xd.tile, cm, tile_row, tile_col);
+ td->xd.current_qindex = cm->base_qindex;
+ setup_bool_decoder(tile_buffer->data, thread_data->data_end,
+ tile_buffer->size, &thread_data->error_info,
+ td->bit_reader, allow_update_cdf);
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ td->bit_reader->accounting = &pbi->accounting;
+ td->bit_reader->accounting->last_tell_frac =
+ aom_reader_tell_frac(td->bit_reader);
+ } else {
+ td->bit_reader->accounting = NULL;
+ }
+#endif
+ av1_init_macroblockd(cm, &td->xd, td->dqcoeff);
+ td->xd.error_info = &thread_data->error_info;
+ av1_init_above_context(cm, &td->xd, tile_row);
+
+ // Initialise the tile context from the frame context
+ tile_data->tctx = *cm->fc;
+ td->xd.tile_ctx = &tile_data->tctx;
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ tile_data->bit_reader.accounting->last_tell_frac =
+ aom_reader_tell_frac(&tile_data->bit_reader);
+ }
+#endif
+}
+
+static int tile_worker_hook(void *arg1, void *arg2) {
+ DecWorkerData *const thread_data = (DecWorkerData *)arg1;
+ AV1Decoder *const pbi = (AV1Decoder *)arg2;
+ AV1_COMMON *cm = &pbi->common;
+ ThreadData *const td = thread_data->td;
+ uint8_t allow_update_cdf;
+
+ // The jmp_buf is valid only for the duration of the function that calls
+ // setjmp(). Therefore, this function must reset the 'setjmp' field to 0
+ // before it returns.
+ if (setjmp(thread_data->error_info.jmp)) {
+ thread_data->error_info.setjmp = 0;
+ thread_data->td->xd.corrupted = 1;
+ return 0;
+ }
+ thread_data->error_info.setjmp = 1;
+
+ allow_update_cdf = cm->large_scale_tile ? 0 : 1;
+ allow_update_cdf = allow_update_cdf && !cm->disable_cdf_update;
+
+ set_decode_func_pointers(td, 0x3);
+
+ assert(cm->tile_cols > 0);
+ while (1) {
+ TileJobsDec *cur_job_info = get_dec_job_info(&pbi->tile_mt_info);
+
+ if (cur_job_info != NULL && !td->xd.corrupted) {
+ const TileBufferDec *const tile_buffer = cur_job_info->tile_buffer;
+ TileDataDec *const tile_data = cur_job_info->tile_data;
+ tile_worker_hook_init(pbi, thread_data, tile_buffer, tile_data,
+ allow_update_cdf);
+ // decode tile
+ int tile_row = tile_data->tile_info.tile_row;
+ int tile_col = tile_data->tile_info.tile_col;
+ decode_tile(pbi, td, tile_row, tile_col);
+ } else {
+ break;
+ }
+ }
+ thread_data->error_info.setjmp = 0;
+ return !td->xd.corrupted;
+}
+
+static int get_next_job_info(AV1Decoder *const pbi,
+ AV1DecRowMTJobInfo *next_job_info,
+ int *end_of_frame) {
+ AV1_COMMON *cm = &pbi->common;
+ TileDataDec *tile_data;
+ AV1DecRowMTSync *dec_row_mt_sync;
+ AV1DecRowMTInfo *frame_row_mt_info = &pbi->frame_row_mt_info;
+ TileInfo tile_info;
+ const int tile_rows_start = frame_row_mt_info->tile_rows_start;
+ const int tile_rows_end = frame_row_mt_info->tile_rows_end;
+ const int tile_cols_start = frame_row_mt_info->tile_cols_start;
+ const int tile_cols_end = frame_row_mt_info->tile_cols_end;
+ const int start_tile = frame_row_mt_info->start_tile;
+ const int end_tile = frame_row_mt_info->end_tile;
+ const int sb_mi_size = mi_size_wide[cm->seq_params.sb_size];
+ int num_mis_to_decode, num_threads_working;
+ int num_mis_waiting_for_decode;
+ int min_threads_working = INT_MAX;
+ int max_mis_to_decode = 0;
+ int tile_row_idx, tile_col_idx;
+ int tile_row = 0;
+ int tile_col = 0;
+
+ memset(next_job_info, 0, sizeof(*next_job_info));
+
+ // Frame decode is completed or error is encountered.
+ *end_of_frame = (frame_row_mt_info->mi_rows_decode_started ==
+ frame_row_mt_info->mi_rows_to_decode) ||
+ (frame_row_mt_info->row_mt_exit == 1);
+ if (*end_of_frame) {
+ return 1;
+ }
+
+ // Decoding cannot start as bit-stream parsing is not complete.
+ if (frame_row_mt_info->mi_rows_parse_done -
+ frame_row_mt_info->mi_rows_decode_started ==
+ 0)
+ return 0;
+
+ // Choose the tile to decode.
+ for (tile_row_idx = tile_rows_start; tile_row_idx < tile_rows_end;
+ ++tile_row_idx) {
+ for (tile_col_idx = tile_cols_start; tile_col_idx < tile_cols_end;
+ ++tile_col_idx) {
+ if (tile_row_idx * cm->tile_cols + tile_col_idx < start_tile ||
+ tile_row_idx * cm->tile_cols + tile_col_idx > end_tile)
+ continue;
+
+ tile_data = pbi->tile_data + tile_row_idx * cm->tile_cols + tile_col_idx;
+ dec_row_mt_sync = &tile_data->dec_row_mt_sync;
+
+ num_threads_working = dec_row_mt_sync->num_threads_working;
+ num_mis_waiting_for_decode = (dec_row_mt_sync->mi_rows_parse_done -
+ dec_row_mt_sync->mi_rows_decode_started) *
+ dec_row_mt_sync->mi_cols;
+ num_mis_to_decode =
+ (dec_row_mt_sync->mi_rows - dec_row_mt_sync->mi_rows_decode_started) *
+ dec_row_mt_sync->mi_cols;
+
+ assert(num_mis_to_decode >= num_mis_waiting_for_decode);
+
+ // Pick the tile which has minimum number of threads working on it.
+ if (num_mis_waiting_for_decode > 0) {
+ if (num_threads_working < min_threads_working) {
+ min_threads_working = num_threads_working;
+ max_mis_to_decode = 0;
+ }
+ if (num_threads_working == min_threads_working &&
+ num_mis_to_decode > max_mis_to_decode) {
+ max_mis_to_decode = num_mis_to_decode;
+ tile_row = tile_row_idx;
+ tile_col = tile_col_idx;
+ }
+ }
+ }
+ }
+
+ tile_data = pbi->tile_data + tile_row * cm->tile_cols + tile_col;
+ tile_info = tile_data->tile_info;
+ dec_row_mt_sync = &tile_data->dec_row_mt_sync;
+
+ next_job_info->tile_row = tile_row;
+ next_job_info->tile_col = tile_col;
+ next_job_info->mi_row =
+ dec_row_mt_sync->mi_rows_decode_started + tile_info.mi_row_start;
+
+ dec_row_mt_sync->num_threads_working++;
+ dec_row_mt_sync->mi_rows_decode_started += sb_mi_size;
+ frame_row_mt_info->mi_rows_decode_started += sb_mi_size;
+
+ return 1;
+}
+
+static INLINE void signal_parse_sb_row_done(AV1Decoder *const pbi,
+ TileDataDec *const tile_data,
+ const int sb_mi_size) {
+ AV1DecRowMTInfo *frame_row_mt_info = &pbi->frame_row_mt_info;
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(pbi->row_mt_mutex_);
+#endif
+ tile_data->dec_row_mt_sync.mi_rows_parse_done += sb_mi_size;
+ frame_row_mt_info->mi_rows_parse_done += sb_mi_size;
+#if CONFIG_MULTITHREAD
+ pthread_cond_broadcast(pbi->row_mt_cond_);
+ pthread_mutex_unlock(pbi->row_mt_mutex_);
+#endif
+}
+
+static int row_mt_worker_hook(void *arg1, void *arg2) {
+ DecWorkerData *const thread_data = (DecWorkerData *)arg1;
+ AV1Decoder *const pbi = (AV1Decoder *)arg2;
+ AV1_COMMON *cm = &pbi->common;
+ ThreadData *const td = thread_data->td;
+ uint8_t allow_update_cdf;
+ const int sb_mi_size = mi_size_wide[cm->seq_params.sb_size];
+ AV1DecRowMTInfo *frame_row_mt_info = &pbi->frame_row_mt_info;
+ td->xd.corrupted = 0;
+
+ // The jmp_buf is valid only for the duration of the function that calls
+ // setjmp(). Therefore, this function must reset the 'setjmp' field to 0
+ // before it returns.
+ if (setjmp(thread_data->error_info.jmp)) {
+ thread_data->error_info.setjmp = 0;
+ thread_data->td->xd.corrupted = 1;
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(pbi->row_mt_mutex_);
+#endif
+ frame_row_mt_info->row_mt_exit = 1;
+#if CONFIG_MULTITHREAD
+ pthread_cond_broadcast(pbi->row_mt_cond_);
+ pthread_mutex_unlock(pbi->row_mt_mutex_);
+#endif
+ return 0;
+ }
+ thread_data->error_info.setjmp = 1;
+
+ const int num_planes = av1_num_planes(cm);
+ allow_update_cdf = cm->large_scale_tile ? 0 : 1;
+ allow_update_cdf = allow_update_cdf && !cm->disable_cdf_update;
+
+ assert(cm->tile_cols > 0);
+ while (1) {
+ TileJobsDec *cur_job_info = get_dec_job_info(&pbi->tile_mt_info);
+
+ if (cur_job_info != NULL && !td->xd.corrupted) {
+ const TileBufferDec *const tile_buffer = cur_job_info->tile_buffer;
+ TileDataDec *const tile_data = cur_job_info->tile_data;
+ tile_worker_hook_init(pbi, thread_data, tile_buffer, tile_data,
+ allow_update_cdf);
+
+ set_decode_func_pointers(td, 0x1);
+
+ // decode tile
+ TileInfo tile_info = tile_data->tile_info;
+ int tile_row = tile_info.tile_row;
+
+ av1_zero_above_context(cm, &td->xd, tile_info.mi_col_start,
+ tile_info.mi_col_end, tile_row);
+ av1_reset_loop_filter_delta(&td->xd, num_planes);
+ av1_reset_loop_restoration(&td->xd, num_planes);
+
+ for (int mi_row = tile_info.mi_row_start; mi_row < tile_info.mi_row_end;
+ mi_row += cm->seq_params.mib_size) {
+ av1_zero_left_context(&td->xd);
+
+ for (int mi_col = tile_info.mi_col_start; mi_col < tile_info.mi_col_end;
+ mi_col += cm->seq_params.mib_size) {
+ set_cb_buffer(pbi, &td->xd, pbi->cb_buffer_base, num_planes, mi_row,
+ mi_col);
+
+ // Bit-stream parsing of the superblock
+ decode_partition(pbi, td, mi_row, mi_col, td->bit_reader,
+ cm->seq_params.sb_size, 0x1);
+ }
+ signal_parse_sb_row_done(pbi, tile_data, sb_mi_size);
+ }
+
+ int corrupted =
+ (check_trailing_bits_after_symbol_coder(td->bit_reader)) ? 1 : 0;
+ aom_merge_corrupted_flag(&td->xd.corrupted, corrupted);
+ } else {
+ break;
+ }
+ }
+
+ set_decode_func_pointers(td, 0x2);
+
+ while (1) {
+ AV1DecRowMTJobInfo next_job_info;
+ int end_of_frame = 0;
+
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(pbi->row_mt_mutex_);
+#endif
+ while (!get_next_job_info(pbi, &next_job_info, &end_of_frame)) {
+#if CONFIG_MULTITHREAD
+ pthread_cond_wait(pbi->row_mt_cond_, pbi->row_mt_mutex_);
+#endif
+ }
+#if CONFIG_MULTITHREAD
+ pthread_mutex_unlock(pbi->row_mt_mutex_);
+#endif
+
+ if (end_of_frame) break;
+
+ int tile_row = next_job_info.tile_row;
+ int tile_col = next_job_info.tile_col;
+ int mi_row = next_job_info.mi_row;
+
+ TileDataDec *tile_data =
+ pbi->tile_data + tile_row * cm->tile_cols + tile_col;
+ AV1DecRowMTSync *dec_row_mt_sync = &tile_data->dec_row_mt_sync;
+ TileInfo tile_info = tile_data->tile_info;
+
+ av1_tile_init(&td->xd.tile, cm, tile_row, tile_col);
+ av1_init_macroblockd(cm, &td->xd, td->dqcoeff);
+ td->xd.error_info = &thread_data->error_info;
+
+ decode_tile_sb_row(pbi, td, tile_info, mi_row);
+
+#if CONFIG_MULTITHREAD
+ pthread_mutex_lock(pbi->row_mt_mutex_);
+#endif
+ dec_row_mt_sync->num_threads_working--;
+#if CONFIG_MULTITHREAD
+ pthread_mutex_unlock(pbi->row_mt_mutex_);
+#endif
+ }
+ thread_data->error_info.setjmp = 0;
+ return !td->xd.corrupted;
+}
+
+// sorts in descending order
+static int compare_tile_buffers(const void *a, const void *b) {
+ const TileJobsDec *const buf1 = (const TileJobsDec *)a;
+ const TileJobsDec *const buf2 = (const TileJobsDec *)b;
+ return (((int)buf2->tile_buffer->size) - ((int)buf1->tile_buffer->size));
+}
+
+static void enqueue_tile_jobs(AV1Decoder *pbi, AV1_COMMON *cm,
+ int tile_rows_start, int tile_rows_end,
+ int tile_cols_start, int tile_cols_end,
+ int startTile, int endTile) {
+ AV1DecTileMT *tile_mt_info = &pbi->tile_mt_info;
+ TileJobsDec *tile_job_queue = tile_mt_info->job_queue;
+ tile_mt_info->jobs_enqueued = 0;
+ tile_mt_info->jobs_dequeued = 0;
+
+ for (int row = tile_rows_start; row < tile_rows_end; row++) {
+ for (int col = tile_cols_start; col < tile_cols_end; col++) {
+ if (row * cm->tile_cols + col < startTile ||
+ row * cm->tile_cols + col > endTile)
+ continue;
+ tile_job_queue->tile_buffer = &pbi->tile_buffers[row][col];
+ tile_job_queue->tile_data = pbi->tile_data + row * cm->tile_cols + col;
+ tile_job_queue++;
+ tile_mt_info->jobs_enqueued++;
+ }
+ }
+}
+
+static void alloc_dec_jobs(AV1DecTileMT *tile_mt_info, AV1_COMMON *cm,
+ int tile_rows, int tile_cols) {
+ tile_mt_info->alloc_tile_rows = tile_rows;
+ tile_mt_info->alloc_tile_cols = tile_cols;
+ int num_tiles = tile_rows * tile_cols;
+#if CONFIG_MULTITHREAD
+ {
+ CHECK_MEM_ERROR(cm, tile_mt_info->job_mutex,
+ aom_malloc(sizeof(*tile_mt_info->job_mutex) * num_tiles));
+
+ for (int i = 0; i < num_tiles; i++) {
+ pthread_mutex_init(&tile_mt_info->job_mutex[i], NULL);
+ }
+ }
+#endif
+ CHECK_MEM_ERROR(cm, tile_mt_info->job_queue,
+ aom_malloc(sizeof(*tile_mt_info->job_queue) * num_tiles));
+}
+
+void av1_free_mc_tmp_buf(ThreadData *thread_data) {
+ int ref;
+ for (ref = 0; ref < 2; ref++) {
+ if (thread_data->mc_buf_use_highbd)
+ aom_free(CONVERT_TO_SHORTPTR(thread_data->mc_buf[ref]));
+ else
+ aom_free(thread_data->mc_buf[ref]);
+ thread_data->mc_buf[ref] = NULL;
+ }
+ thread_data->mc_buf_size = 0;
+ thread_data->mc_buf_use_highbd = 0;
+
+ aom_free(thread_data->tmp_conv_dst);
+ thread_data->tmp_conv_dst = NULL;
+ for (int i = 0; i < 2; ++i) {
+ aom_free(thread_data->tmp_obmc_bufs[i]);
+ thread_data->tmp_obmc_bufs[i] = NULL;
+ }
+}
+
+static void allocate_mc_tmp_buf(AV1_COMMON *const cm, ThreadData *thread_data,
+ int buf_size, int use_highbd) {
+ for (int ref = 0; ref < 2; ref++) {
+ if (use_highbd) {
+ uint16_t *hbd_mc_buf;
+ CHECK_MEM_ERROR(cm, hbd_mc_buf, (uint16_t *)aom_memalign(16, buf_size));
+ thread_data->mc_buf[ref] = CONVERT_TO_BYTEPTR(hbd_mc_buf);
+ } else {
+ CHECK_MEM_ERROR(cm, thread_data->mc_buf[ref],
+ (uint8_t *)aom_memalign(16, buf_size));
+ }
+ }
+ thread_data->mc_buf_size = buf_size;
+ thread_data->mc_buf_use_highbd = use_highbd;
+
+ CHECK_MEM_ERROR(cm, thread_data->tmp_conv_dst,
+ aom_memalign(32, MAX_SB_SIZE * MAX_SB_SIZE *
+ sizeof(*thread_data->tmp_conv_dst)));
+ for (int i = 0; i < 2; ++i) {
+ CHECK_MEM_ERROR(
+ cm, thread_data->tmp_obmc_bufs[i],
+ aom_memalign(16, 2 * MAX_MB_PLANE * MAX_SB_SQUARE *
+ sizeof(*thread_data->tmp_obmc_bufs[i])));
+ }
+}
+
+static void reset_dec_workers(AV1Decoder *pbi, AVxWorkerHook worker_hook,
+ int num_workers) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+
+ // Reset tile decoding hook
+ for (int worker_idx = 0; worker_idx < num_workers; ++worker_idx) {
+ AVxWorker *const worker = &pbi->tile_workers[worker_idx];
+ DecWorkerData *const thread_data = pbi->thread_data + worker_idx;
+ thread_data->td->xd = pbi->mb;
+ thread_data->td->xd.corrupted = 0;
+ thread_data->td->xd.mc_buf[0] = thread_data->td->mc_buf[0];
+ thread_data->td->xd.mc_buf[1] = thread_data->td->mc_buf[1];
+ thread_data->td->xd.tmp_conv_dst = thread_data->td->tmp_conv_dst;
+ for (int j = 0; j < 2; ++j) {
+ thread_data->td->xd.tmp_obmc_bufs[j] = thread_data->td->tmp_obmc_bufs[j];
+ }
+ winterface->sync(worker);
+
+ worker->hook = worker_hook;
+ worker->data1 = thread_data;
+ worker->data2 = pbi;
+ }
+#if CONFIG_ACCOUNTING
+ if (pbi->acct_enabled) {
+ aom_accounting_reset(&pbi->accounting);
+ }
+#endif
+}
+
+static void launch_dec_workers(AV1Decoder *pbi, const uint8_t *data_end,
+ int num_workers) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+
+ for (int worker_idx = 0; worker_idx < num_workers; ++worker_idx) {
+ AVxWorker *const worker = &pbi->tile_workers[worker_idx];
+ DecWorkerData *const thread_data = (DecWorkerData *)worker->data1;
+
+ thread_data->data_end = data_end;
+
+ worker->had_error = 0;
+ if (worker_idx == num_workers - 1) {
+ winterface->execute(worker);
+ } else {
+ winterface->launch(worker);
+ }
+ }
+}
+
+static void sync_dec_workers(AV1Decoder *pbi, int num_workers) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ int corrupted = 0;
+
+ for (int worker_idx = num_workers; worker_idx > 0; --worker_idx) {
+ AVxWorker *const worker = &pbi->tile_workers[worker_idx - 1];
+ aom_merge_corrupted_flag(&corrupted, !winterface->sync(worker));
+ }
+
+ pbi->mb.corrupted = corrupted;
+}
+
+static void decode_mt_init(AV1Decoder *pbi) {
+ AV1_COMMON *const cm = &pbi->common;
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ int worker_idx;
+
+ // Create workers and thread_data
+ if (pbi->num_workers == 0) {
+ const int num_threads = pbi->max_threads;
+ CHECK_MEM_ERROR(cm, pbi->tile_workers,
+ aom_malloc(num_threads * sizeof(*pbi->tile_workers)));
+ CHECK_MEM_ERROR(cm, pbi->thread_data,
+ aom_malloc(num_threads * sizeof(*pbi->thread_data)));
+
+ for (worker_idx = 0; worker_idx < num_threads; ++worker_idx) {
+ AVxWorker *const worker = &pbi->tile_workers[worker_idx];
+ DecWorkerData *const thread_data = pbi->thread_data + worker_idx;
+ ++pbi->num_workers;
+
+ winterface->init(worker);
+ if (worker_idx < num_threads - 1 && !winterface->reset(worker)) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Tile decoder thread creation failed");
+ }
+
+ if (worker_idx < num_threads - 1) {
+ // Allocate thread data.
+ CHECK_MEM_ERROR(cm, thread_data->td,
+ aom_memalign(32, sizeof(*thread_data->td)));
+ av1_zero(*thread_data->td);
+ } else {
+ // Main thread acts as a worker and uses the thread data in pbi
+ thread_data->td = &pbi->td;
+ }
+ thread_data->error_info.error_code = AOM_CODEC_OK;
+ thread_data->error_info.setjmp = 0;
+ }
+ }
+ const int use_highbd = cm->seq_params.use_highbitdepth ? 1 : 0;
+ const int buf_size = MC_TEMP_BUF_PELS << use_highbd;
+ for (worker_idx = 0; worker_idx < pbi->max_threads - 1; ++worker_idx) {
+ DecWorkerData *const thread_data = pbi->thread_data + worker_idx;
+ if (thread_data->td->mc_buf_size != buf_size) {
+ av1_free_mc_tmp_buf(thread_data->td);
+ allocate_mc_tmp_buf(cm, thread_data->td, buf_size, use_highbd);
+ }
+ }
+}
+
+static void tile_mt_queue(AV1Decoder *pbi, int tile_cols, int tile_rows,
+ int tile_rows_start, int tile_rows_end,
+ int tile_cols_start, int tile_cols_end,
+ int start_tile, int end_tile) {
+ AV1_COMMON *const cm = &pbi->common;
+ if (pbi->tile_mt_info.alloc_tile_cols != tile_cols ||
+ pbi->tile_mt_info.alloc_tile_rows != tile_rows) {
+ av1_dealloc_dec_jobs(&pbi->tile_mt_info);
+ alloc_dec_jobs(&pbi->tile_mt_info, cm, tile_rows, tile_cols);
+ }
+ enqueue_tile_jobs(pbi, cm, tile_rows_start, tile_rows_end, tile_cols_start,
+ tile_cols_end, start_tile, end_tile);
+ qsort(pbi->tile_mt_info.job_queue, pbi->tile_mt_info.jobs_enqueued,
+ sizeof(pbi->tile_mt_info.job_queue[0]), compare_tile_buffers);
+}
+
+static const uint8_t *decode_tiles_mt(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end, int start_tile,
+ int end_tile) {
+ AV1_COMMON *const cm = &pbi->common;
+ 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;
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ int tile_rows_start;
+ int tile_rows_end;
+ int tile_cols_start;
+ int tile_cols_end;
+ int tile_count_tg;
+ int num_workers;
+ const uint8_t *raw_data_end = NULL;
+
+ if (cm->large_scale_tile) {
+ tile_rows_start = single_row ? dec_tile_row : 0;
+ tile_rows_end = single_row ? dec_tile_row + 1 : tile_rows;
+ tile_cols_start = single_col ? dec_tile_col : 0;
+ tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+ } else {
+ tile_rows_start = 0;
+ tile_rows_end = tile_rows;
+ tile_cols_start = 0;
+ tile_cols_end = tile_cols;
+ }
+ tile_count_tg = end_tile - start_tile + 1;
+ num_workers = AOMMIN(pbi->max_threads, tile_count_tg);
+
+ // No tiles to decode.
+ if (tile_rows_end <= tile_rows_start || tile_cols_end <= tile_cols_start ||
+ // First tile is larger than end_tile.
+ tile_rows_start * tile_cols + tile_cols_start > end_tile ||
+ // Last tile is smaller than start_tile.
+ (tile_rows_end - 1) * tile_cols + tile_cols_end - 1 < start_tile)
+ return data;
+
+ assert(tile_rows <= MAX_TILE_ROWS);
+ assert(tile_cols <= MAX_TILE_COLS);
+ assert(tile_count_tg > 0);
+ assert(num_workers > 0);
+ assert(start_tile <= end_tile);
+ assert(start_tile >= 0 && end_tile < n_tiles);
+
+ decode_mt_init(pbi);
+
+ // get tile size in tile group
+#if EXT_TILE_DEBUG
+ if (cm->large_scale_tile) assert(pbi->ext_tile_debug == 1);
+ if (cm->large_scale_tile)
+ raw_data_end = get_ls_tile_buffers(pbi, data, data_end, tile_buffers);
+ else
+#endif // EXT_TILE_DEBUG
+ get_tile_buffers(pbi, data, data_end, tile_buffers, start_tile, end_tile);
+
+ if (pbi->tile_data == NULL || n_tiles != pbi->allocated_tiles) {
+ decoder_alloc_tile_data(pbi, n_tiles);
+ }
+
+ for (int row = 0; row < tile_rows; row++) {
+ for (int col = 0; col < tile_cols; col++) {
+ TileDataDec *tile_data = pbi->tile_data + row * cm->tile_cols + col;
+ av1_tile_init(&tile_data->tile_info, cm, row, col);
+ }
+ }
+
+ tile_mt_queue(pbi, tile_cols, tile_rows, tile_rows_start, tile_rows_end,
+ tile_cols_start, tile_cols_end, start_tile, end_tile);
+
+ reset_dec_workers(pbi, tile_worker_hook, num_workers);
+ launch_dec_workers(pbi, data_end, num_workers);
+ sync_dec_workers(pbi, num_workers);
+
+ if (pbi->mb.corrupted)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Failed to decode tile data");
+
+ if (cm->large_scale_tile) {
+ if (n_tiles == 1) {
+ // Find the end of the single tile buffer
+ return aom_reader_find_end(&pbi->tile_data->bit_reader);
+ }
+ // Return the end of the last tile buffer
+ return raw_data_end;
+ }
+ TileDataDec *const tile_data = pbi->tile_data + end_tile;
+
+ return aom_reader_find_end(&tile_data->bit_reader);
+}
+
+static void dec_alloc_cb_buf(AV1Decoder *pbi) {
+ AV1_COMMON *const cm = &pbi->common;
+ int size = ((cm->mi_rows >> cm->seq_params.mib_size_log2) + 1) *
+ ((cm->mi_cols >> cm->seq_params.mib_size_log2) + 1);
+
+ if (pbi->cb_buffer_alloc_size < size) {
+ av1_dec_free_cb_buf(pbi);
+ CHECK_MEM_ERROR(cm, pbi->cb_buffer_base,
+ aom_memalign(32, sizeof(*pbi->cb_buffer_base) * size));
+ pbi->cb_buffer_alloc_size = size;
+ }
+}
+
+static void row_mt_frame_init(AV1Decoder *pbi, int tile_rows_start,
+ int tile_rows_end, int tile_cols_start,
+ int tile_cols_end, int start_tile, int end_tile,
+ int max_sb_rows) {
+ AV1_COMMON *const cm = &pbi->common;
+ AV1DecRowMTInfo *frame_row_mt_info = &pbi->frame_row_mt_info;
+
+ frame_row_mt_info->tile_rows_start = tile_rows_start;
+ frame_row_mt_info->tile_rows_end = tile_rows_end;
+ frame_row_mt_info->tile_cols_start = tile_cols_start;
+ frame_row_mt_info->tile_cols_end = tile_cols_end;
+ frame_row_mt_info->start_tile = start_tile;
+ frame_row_mt_info->end_tile = end_tile;
+ frame_row_mt_info->mi_rows_to_decode = 0;
+ frame_row_mt_info->mi_rows_parse_done = 0;
+ frame_row_mt_info->mi_rows_decode_started = 0;
+ frame_row_mt_info->row_mt_exit = 0;
+
+ for (int tile_row = tile_rows_start; tile_row < tile_rows_end; ++tile_row) {
+ for (int tile_col = tile_cols_start; tile_col < tile_cols_end; ++tile_col) {
+ if (tile_row * cm->tile_cols + tile_col < start_tile ||
+ tile_row * cm->tile_cols + tile_col > end_tile)
+ continue;
+
+ TileDataDec *const tile_data =
+ pbi->tile_data + tile_row * cm->tile_cols + tile_col;
+ TileInfo tile_info = tile_data->tile_info;
+
+ tile_data->dec_row_mt_sync.mi_rows_parse_done = 0;
+ tile_data->dec_row_mt_sync.mi_rows_decode_started = 0;
+ tile_data->dec_row_mt_sync.num_threads_working = 0;
+ tile_data->dec_row_mt_sync.mi_rows =
+ ALIGN_POWER_OF_TWO(tile_info.mi_row_end - tile_info.mi_row_start,
+ cm->seq_params.mib_size_log2);
+ tile_data->dec_row_mt_sync.mi_cols =
+ ALIGN_POWER_OF_TWO(tile_info.mi_col_end - tile_info.mi_col_start,
+ cm->seq_params.mib_size_log2);
+
+ frame_row_mt_info->mi_rows_to_decode +=
+ tile_data->dec_row_mt_sync.mi_rows;
+
+ // Initialize cur_sb_col to -1 for all SB rows.
+ memset(tile_data->dec_row_mt_sync.cur_sb_col, -1,
+ sizeof(*tile_data->dec_row_mt_sync.cur_sb_col) * max_sb_rows);
+ }
+ }
+
+#if CONFIG_MULTITHREAD
+ if (pbi->row_mt_mutex_ == NULL) {
+ CHECK_MEM_ERROR(cm, pbi->row_mt_mutex_,
+ aom_malloc(sizeof(*(pbi->row_mt_mutex_))));
+ if (pbi->row_mt_mutex_) {
+ pthread_mutex_init(pbi->row_mt_mutex_, NULL);
+ }
+ }
+
+ if (pbi->row_mt_cond_ == NULL) {
+ CHECK_MEM_ERROR(cm, pbi->row_mt_cond_,
+ aom_malloc(sizeof(*(pbi->row_mt_cond_))));
+ if (pbi->row_mt_cond_) {
+ pthread_cond_init(pbi->row_mt_cond_, NULL);
+ }
+ }
+#endif
+}
+
+static const uint8_t *decode_tiles_row_mt(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end,
+ int start_tile, int end_tile) {
+ AV1_COMMON *const cm = &pbi->common;
+ 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;
+ const int dec_tile_row = AOMMIN(pbi->dec_tile_row, tile_rows);
+ const int single_row = pbi->dec_tile_row >= 0;
+ const int dec_tile_col = AOMMIN(pbi->dec_tile_col, tile_cols);
+ const int single_col = pbi->dec_tile_col >= 0;
+ int tile_rows_start;
+ int tile_rows_end;
+ int tile_cols_start;
+ int tile_cols_end;
+ int tile_count_tg;
+ int num_workers;
+ const uint8_t *raw_data_end = NULL;
+ int max_sb_rows = 0;
+
+ if (cm->large_scale_tile) {
+ tile_rows_start = single_row ? dec_tile_row : 0;
+ tile_rows_end = single_row ? dec_tile_row + 1 : tile_rows;
+ tile_cols_start = single_col ? dec_tile_col : 0;
+ tile_cols_end = single_col ? tile_cols_start + 1 : tile_cols;
+ } else {
+ tile_rows_start = 0;
+ tile_rows_end = tile_rows;
+ tile_cols_start = 0;
+ tile_cols_end = tile_cols;
+ }
+ tile_count_tg = end_tile - start_tile + 1;
+ num_workers = pbi->max_threads;
+
+ // No tiles to decode.
+ if (tile_rows_end <= tile_rows_start || tile_cols_end <= tile_cols_start ||
+ // First tile is larger than end_tile.
+ tile_rows_start * tile_cols + tile_cols_start > end_tile ||
+ // Last tile is smaller than start_tile.
+ (tile_rows_end - 1) * tile_cols + tile_cols_end - 1 < start_tile)
+ return data;
+
+ assert(tile_rows <= MAX_TILE_ROWS);
+ assert(tile_cols <= MAX_TILE_COLS);
+ assert(tile_count_tg > 0);
+ assert(num_workers > 0);
+ assert(start_tile <= end_tile);
+ assert(start_tile >= 0 && end_tile < n_tiles);
+
+ (void)tile_count_tg;
+
+ decode_mt_init(pbi);
+
+ // get tile size in tile group
+#if EXT_TILE_DEBUG
+ if (cm->large_scale_tile) assert(pbi->ext_tile_debug == 1);
+ if (cm->large_scale_tile)
+ raw_data_end = get_ls_tile_buffers(pbi, data, data_end, tile_buffers);
+ else
+#endif // EXT_TILE_DEBUG
+ get_tile_buffers(pbi, data, data_end, tile_buffers, start_tile, end_tile);
+
+ if (pbi->tile_data == NULL || n_tiles != pbi->allocated_tiles) {
+ for (int i = 0; i < pbi->allocated_tiles; i++) {
+ TileDataDec *const tile_data = pbi->tile_data + i;
+ av1_dec_row_mt_dealloc(&tile_data->dec_row_mt_sync);
+ }
+ decoder_alloc_tile_data(pbi, n_tiles);
+ }
+
+ for (int row = 0; row < tile_rows; row++) {
+ for (int col = 0; col < tile_cols; col++) {
+ TileDataDec *tile_data = pbi->tile_data + row * cm->tile_cols + col;
+ av1_tile_init(&tile_data->tile_info, cm, row, col);
+
+ max_sb_rows = AOMMAX(max_sb_rows,
+ av1_get_sb_rows_in_tile(cm, tile_data->tile_info));
+ }
+ }
+
+ if (pbi->allocated_row_mt_sync_rows != max_sb_rows) {
+ for (int i = 0; i < n_tiles; ++i) {
+ TileDataDec *const tile_data = pbi->tile_data + i;
+ av1_dec_row_mt_dealloc(&tile_data->dec_row_mt_sync);
+ dec_row_mt_alloc(&tile_data->dec_row_mt_sync, cm, max_sb_rows);
+ }
+ pbi->allocated_row_mt_sync_rows = max_sb_rows;
+ }
+
+ tile_mt_queue(pbi, tile_cols, tile_rows, tile_rows_start, tile_rows_end,
+ tile_cols_start, tile_cols_end, start_tile, end_tile);
+
+ dec_alloc_cb_buf(pbi);
+
+ row_mt_frame_init(pbi, tile_rows_start, tile_rows_end, tile_cols_start,
+ tile_cols_end, start_tile, end_tile, max_sb_rows);
+
+ reset_dec_workers(pbi, row_mt_worker_hook, num_workers);
+ launch_dec_workers(pbi, data_end, num_workers);
+ sync_dec_workers(pbi, num_workers);
+
+ if (pbi->mb.corrupted)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Failed to decode tile data");
+
+ if (cm->large_scale_tile) {
+ if (n_tiles == 1) {
+ // Find the end of the single tile buffer
+ return aom_reader_find_end(&pbi->tile_data->bit_reader);
+ }
+ // Return the end of the last tile buffer
+ return raw_data_end;
+ }
+ TileDataDec *const tile_data = pbi->tile_data + end_tile;
+
+ return aom_reader_find_end(&tile_data->bit_reader);
+}
+
+static void error_handler(void *data) {
+ AV1_COMMON *const cm = (AV1_COMMON *)data;
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME, "Truncated packet");
+}
+
+// Reads the high_bitdepth and twelve_bit fields in color_config() and sets
+// seq_params->bit_depth based on the values of those fields and
+// seq_params->profile. Reports errors by calling rb->error_handler() or
+// aom_internal_error().
+static void read_bitdepth(struct aom_read_bit_buffer *rb,
+ SequenceHeader *seq_params,
+ struct aom_internal_error_info *error_info) {
+ const int high_bitdepth = aom_rb_read_bit(rb);
+ if (seq_params->profile == PROFILE_2 && high_bitdepth) {
+ const int twelve_bit = aom_rb_read_bit(rb);
+ seq_params->bit_depth = twelve_bit ? AOM_BITS_12 : AOM_BITS_10;
+ } else if (seq_params->profile <= PROFILE_2) {
+ seq_params->bit_depth = high_bitdepth ? AOM_BITS_10 : AOM_BITS_8;
+ } else {
+ aom_internal_error(error_info, AOM_CODEC_UNSUP_BITSTREAM,
+ "Unsupported profile/bit-depth combination");
+ }
+}
+
+void av1_read_film_grain_params(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ aom_film_grain_t *pars = &cm->film_grain_params;
+ const SequenceHeader *const seq_params = &cm->seq_params;
+
+ pars->apply_grain = aom_rb_read_bit(rb);
+ if (!pars->apply_grain) {
+ memset(pars, 0, sizeof(*pars));
+ return;
+ }
+
+ pars->random_seed = aom_rb_read_literal(rb, 16);
+ if (cm->frame_type == INTER_FRAME)
+ pars->update_parameters = aom_rb_read_bit(rb);
+ else
+ pars->update_parameters = 1;
+
+ pars->bit_depth = seq_params->bit_depth;
+
+ if (!pars->update_parameters) {
+ // inherit parameters from a previous reference frame
+ RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
+ int film_grain_params_ref_idx = aom_rb_read_literal(rb, 3);
+ int buf_idx = cm->ref_frame_map[film_grain_params_ref_idx];
+ if (buf_idx == INVALID_IDX) {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Invalid Film grain reference idx");
+ }
+ if (!frame_bufs[buf_idx].film_grain_params_present) {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Film grain reference parameters not available");
+ }
+ uint16_t random_seed = pars->random_seed;
+ *pars = frame_bufs[buf_idx].film_grain_params; // inherit paramaters
+ pars->random_seed = random_seed; // with new random seed
+ return;
+ }
+
+ // Scaling functions parameters
+ pars->num_y_points = aom_rb_read_literal(rb, 4); // max 14
+ if (pars->num_y_points > 14)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Number of points for film grain luma scaling function "
+ "exceeds the maximum value.");
+ for (int i = 0; i < pars->num_y_points; i++) {
+ pars->scaling_points_y[i][0] = aom_rb_read_literal(rb, 8);
+ if (i && pars->scaling_points_y[i - 1][0] >= pars->scaling_points_y[i][0])
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "First coordinate of the scaling function points "
+ "shall be increasing.");
+ pars->scaling_points_y[i][1] = aom_rb_read_literal(rb, 8);
+ }
+
+ if (!seq_params->monochrome)
+ pars->chroma_scaling_from_luma = aom_rb_read_bit(rb);
+ else
+ pars->chroma_scaling_from_luma = 0;
+
+ if (seq_params->monochrome || pars->chroma_scaling_from_luma ||
+ ((seq_params->subsampling_x == 1) && (seq_params->subsampling_y == 1) &&
+ (pars->num_y_points == 0))) {
+ pars->num_cb_points = 0;
+ pars->num_cr_points = 0;
+ } else {
+ pars->num_cb_points = aom_rb_read_literal(rb, 4); // max 10
+ if (pars->num_cb_points > 10)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Number of points for film grain cb scaling function "
+ "exceeds the maximum value.");
+ for (int i = 0; i < pars->num_cb_points; i++) {
+ pars->scaling_points_cb[i][0] = aom_rb_read_literal(rb, 8);
+ if (i &&
+ pars->scaling_points_cb[i - 1][0] >= pars->scaling_points_cb[i][0])
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "First coordinate of the scaling function points "
+ "shall be increasing.");
+ pars->scaling_points_cb[i][1] = aom_rb_read_literal(rb, 8);
+ }
+
+ pars->num_cr_points = aom_rb_read_literal(rb, 4); // max 10
+ if (pars->num_cr_points > 10)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Number of points for film grain cr scaling function "
+ "exceeds the maximum value.");
+ for (int i = 0; i < pars->num_cr_points; i++) {
+ pars->scaling_points_cr[i][0] = aom_rb_read_literal(rb, 8);
+ if (i &&
+ pars->scaling_points_cr[i - 1][0] >= pars->scaling_points_cr[i][0])
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "First coordinate of the scaling function points "
+ "shall be increasing.");
+ pars->scaling_points_cr[i][1] = aom_rb_read_literal(rb, 8);
+ }
+
+ if ((seq_params->subsampling_x == 1) && (seq_params->subsampling_y == 1) &&
+ (((pars->num_cb_points == 0) && (pars->num_cr_points != 0)) ||
+ ((pars->num_cb_points != 0) && (pars->num_cr_points == 0))))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "In YCbCr 4:2:0, film grain shall be applied "
+ "to both chroma components or neither.");
+ }
+
+ pars->scaling_shift = aom_rb_read_literal(rb, 2) + 8; // 8 + value
+
+ // AR coefficients
+ // Only sent if the corresponsing scaling function has
+ // more than 0 points
+
+ pars->ar_coeff_lag = aom_rb_read_literal(rb, 2);
+
+ int num_pos_luma = 2 * pars->ar_coeff_lag * (pars->ar_coeff_lag + 1);
+ int num_pos_chroma = num_pos_luma;
+ if (pars->num_y_points > 0) ++num_pos_chroma;
+
+ if (pars->num_y_points)
+ for (int i = 0; i < num_pos_luma; i++)
+ pars->ar_coeffs_y[i] = aom_rb_read_literal(rb, 8) - 128;
+
+ if (pars->num_cb_points || pars->chroma_scaling_from_luma)
+ for (int i = 0; i < num_pos_chroma; i++)
+ pars->ar_coeffs_cb[i] = aom_rb_read_literal(rb, 8) - 128;
+
+ if (pars->num_cr_points || pars->chroma_scaling_from_luma)
+ for (int i = 0; i < num_pos_chroma; i++)
+ pars->ar_coeffs_cr[i] = aom_rb_read_literal(rb, 8) - 128;
+
+ pars->ar_coeff_shift = aom_rb_read_literal(rb, 2) + 6; // 6 + value
+
+ pars->grain_scale_shift = aom_rb_read_literal(rb, 2);
+
+ if (pars->num_cb_points) {
+ pars->cb_mult = aom_rb_read_literal(rb, 8);
+ pars->cb_luma_mult = aom_rb_read_literal(rb, 8);
+ pars->cb_offset = aom_rb_read_literal(rb, 9);
+ }
+
+ if (pars->num_cr_points) {
+ pars->cr_mult = aom_rb_read_literal(rb, 8);
+ pars->cr_luma_mult = aom_rb_read_literal(rb, 8);
+ pars->cr_offset = aom_rb_read_literal(rb, 9);
+ }
+
+ pars->overlap_flag = aom_rb_read_bit(rb);
+
+ pars->clip_to_restricted_range = aom_rb_read_bit(rb);
+}
+
+static void read_film_grain(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ if (cm->seq_params.film_grain_params_present &&
+ (cm->show_frame || cm->showable_frame)) {
+ av1_read_film_grain_params(cm, rb);
+ } else {
+ memset(&cm->film_grain_params, 0, sizeof(cm->film_grain_params));
+ }
+ cm->film_grain_params.bit_depth = cm->seq_params.bit_depth;
+ memcpy(&cm->cur_frame->film_grain_params, &cm->film_grain_params,
+ sizeof(aom_film_grain_t));
+}
+
+void av1_read_color_config(struct aom_read_bit_buffer *rb,
+ int allow_lowbitdepth, SequenceHeader *seq_params,
+ struct aom_internal_error_info *error_info) {
+ read_bitdepth(rb, seq_params, error_info);
+
+ seq_params->use_highbitdepth =
+ seq_params->bit_depth > AOM_BITS_8 || !allow_lowbitdepth;
+ // monochrome bit (not needed for PROFILE_1)
+ const int is_monochrome =
+ seq_params->profile != PROFILE_1 ? aom_rb_read_bit(rb) : 0;
+ seq_params->monochrome = is_monochrome;
+ int color_description_present_flag = aom_rb_read_bit(rb);
+ if (color_description_present_flag) {
+ seq_params->color_primaries = aom_rb_read_literal(rb, 8);
+ seq_params->transfer_characteristics = aom_rb_read_literal(rb, 8);
+ seq_params->matrix_coefficients = aom_rb_read_literal(rb, 8);
+ } else {
+ seq_params->color_primaries = AOM_CICP_CP_UNSPECIFIED;
+ seq_params->transfer_characteristics = AOM_CICP_TC_UNSPECIFIED;
+ seq_params->matrix_coefficients = AOM_CICP_MC_UNSPECIFIED;
+ }
+ if (is_monochrome) {
+ // [16,235] (including xvycc) vs [0,255] range
+ seq_params->color_range = aom_rb_read_bit(rb);
+ seq_params->subsampling_y = seq_params->subsampling_x = 1;
+ seq_params->chroma_sample_position = AOM_CSP_UNKNOWN;
+ seq_params->separate_uv_delta_q = 0;
+ return;
+ }
+ if (seq_params->color_primaries == AOM_CICP_CP_BT_709 &&
+ seq_params->transfer_characteristics == AOM_CICP_TC_SRGB &&
+ seq_params->matrix_coefficients == AOM_CICP_MC_IDENTITY) {
+ // It would be good to remove this dependency.
+ seq_params->subsampling_y = seq_params->subsampling_x = 0;
+ seq_params->color_range = 1; // assume full color-range
+ if (!(seq_params->profile == PROFILE_1 ||
+ (seq_params->profile == PROFILE_2 &&
+ seq_params->bit_depth == AOM_BITS_12))) {
+ aom_internal_error(
+ error_info, AOM_CODEC_UNSUP_BITSTREAM,
+ "sRGB colorspace not compatible with specified profile");
+ }
+ } else {
+ // [16,235] (including xvycc) vs [0,255] range
+ seq_params->color_range = aom_rb_read_bit(rb);
+ if (seq_params->profile == PROFILE_0) {
+ // 420 only
+ seq_params->subsampling_x = seq_params->subsampling_y = 1;
+ } else if (seq_params->profile == PROFILE_1) {
+ // 444 only
+ seq_params->subsampling_x = seq_params->subsampling_y = 0;
+ } else {
+ assert(seq_params->profile == PROFILE_2);
+ if (seq_params->bit_depth == AOM_BITS_12) {
+ seq_params->subsampling_x = aom_rb_read_bit(rb);
+ if (seq_params->subsampling_x)
+ seq_params->subsampling_y = aom_rb_read_bit(rb); // 422 or 420
+ else
+ seq_params->subsampling_y = 0; // 444
+ } else {
+ // 422
+ seq_params->subsampling_x = 1;
+ seq_params->subsampling_y = 0;
+ }
+ }
+ if (seq_params->matrix_coefficients == AOM_CICP_MC_IDENTITY &&
+ (seq_params->subsampling_x || seq_params->subsampling_y)) {
+ aom_internal_error(
+ error_info, AOM_CODEC_UNSUP_BITSTREAM,
+ "Identity CICP Matrix incompatible with non 4:4:4 color sampling");
+ }
+ if (seq_params->subsampling_x && seq_params->subsampling_y) {
+ seq_params->chroma_sample_position = aom_rb_read_literal(rb, 2);
+ }
+ }
+ seq_params->separate_uv_delta_q = aom_rb_read_bit(rb);
+}
+
+void av1_read_timing_info_header(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ cm->timing_info.num_units_in_display_tick = aom_rb_read_unsigned_literal(
+ rb, 32); // Number of units in a display tick
+ cm->timing_info.time_scale =
+ aom_rb_read_unsigned_literal(rb, 32); // Time scale
+ if (cm->timing_info.num_units_in_display_tick == 0 ||
+ cm->timing_info.time_scale == 0) {
+ aom_internal_error(
+ &cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "num_units_in_display_tick and time_scale must be greater than 0.");
+ }
+ cm->timing_info.equal_picture_interval =
+ aom_rb_read_bit(rb); // Equal picture interval bit
+ if (cm->timing_info.equal_picture_interval) {
+ cm->timing_info.num_ticks_per_picture =
+ aom_rb_read_uvlc(rb) + 1; // ticks per picture
+ if (cm->timing_info.num_ticks_per_picture == 0) {
+ aom_internal_error(
+ &cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "num_ticks_per_picture_minus_1 cannot be (1 << 32) − 1.");
+ }
+ }
+}
+
+void av1_read_decoder_model_info(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb) {
+ cm->buffer_model.encoder_decoder_buffer_delay_length =
+ aom_rb_read_literal(rb, 5) + 1;
+ cm->buffer_model.num_units_in_decoding_tick = aom_rb_read_unsigned_literal(
+ rb, 32); // Number of units in a decoding tick
+ cm->buffer_model.buffer_removal_time_length = aom_rb_read_literal(rb, 5) + 1;
+ cm->buffer_model.frame_presentation_time_length =
+ aom_rb_read_literal(rb, 5) + 1;
+}
+
+void av1_read_op_parameters_info(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb, int op_num) {
+ // The cm->op_params array has MAX_NUM_OPERATING_POINTS + 1 elements.
+ if (op_num > MAX_NUM_OPERATING_POINTS) {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "AV1 does not support %d decoder model operating points",
+ op_num + 1);
+ }
+
+ cm->op_params[op_num].decoder_buffer_delay = aom_rb_read_unsigned_literal(
+ rb, cm->buffer_model.encoder_decoder_buffer_delay_length);
+
+ cm->op_params[op_num].encoder_buffer_delay = aom_rb_read_unsigned_literal(
+ rb, cm->buffer_model.encoder_decoder_buffer_delay_length);
+
+ cm->op_params[op_num].low_delay_mode_flag = aom_rb_read_bit(rb);
+}
+
+static void av1_read_temporal_point_info(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb) {
+ cm->frame_presentation_time = aom_rb_read_unsigned_literal(
+ rb, cm->buffer_model.frame_presentation_time_length);
+}
+
+void av1_read_sequence_header(AV1_COMMON *cm, struct aom_read_bit_buffer *rb,
+ SequenceHeader *seq_params) {
+ const int num_bits_width = aom_rb_read_literal(rb, 4) + 1;
+ const int num_bits_height = aom_rb_read_literal(rb, 4) + 1;
+ const int max_frame_width = aom_rb_read_literal(rb, num_bits_width) + 1;
+ const int max_frame_height = aom_rb_read_literal(rb, num_bits_height) + 1;
+
+ seq_params->num_bits_width = num_bits_width;
+ seq_params->num_bits_height = num_bits_height;
+ seq_params->max_frame_width = max_frame_width;
+ seq_params->max_frame_height = max_frame_height;
+
+ if (seq_params->reduced_still_picture_hdr) {
+ seq_params->frame_id_numbers_present_flag = 0;
+ } else {
+ seq_params->frame_id_numbers_present_flag = aom_rb_read_bit(rb);
+ }
+ if (seq_params->frame_id_numbers_present_flag) {
+ // We must always have delta_frame_id_length < frame_id_length,
+ // in order for a frame to be referenced with a unique delta.
+ // Avoid wasting bits by using a coding that enforces this restriction.
+ seq_params->delta_frame_id_length = aom_rb_read_literal(rb, 4) + 2;
+ seq_params->frame_id_length =
+ aom_rb_read_literal(rb, 3) + seq_params->delta_frame_id_length + 1;
+ if (seq_params->frame_id_length > 16)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Invalid frame_id_length");
+ }
+
+ setup_sb_size(seq_params, rb);
+
+ seq_params->enable_filter_intra = aom_rb_read_bit(rb);
+ seq_params->enable_intra_edge_filter = aom_rb_read_bit(rb);
+
+ if (seq_params->reduced_still_picture_hdr) {
+ seq_params->enable_interintra_compound = 0;
+ seq_params->enable_masked_compound = 0;
+ seq_params->enable_warped_motion = 0;
+ seq_params->enable_dual_filter = 0;
+ seq_params->enable_order_hint = 0;
+ seq_params->enable_jnt_comp = 0;
+ seq_params->enable_ref_frame_mvs = 0;
+ seq_params->force_screen_content_tools = 2; // SELECT_SCREEN_CONTENT_TOOLS
+ seq_params->force_integer_mv = 2; // SELECT_INTEGER_MV
+ seq_params->order_hint_bits_minus_1 = -1;
+ } else {
+ seq_params->enable_interintra_compound = aom_rb_read_bit(rb);
+ seq_params->enable_masked_compound = aom_rb_read_bit(rb);
+ seq_params->enable_warped_motion = aom_rb_read_bit(rb);
+ seq_params->enable_dual_filter = aom_rb_read_bit(rb);
+
+ seq_params->enable_order_hint = aom_rb_read_bit(rb);
+ seq_params->enable_jnt_comp =
+ seq_params->enable_order_hint ? aom_rb_read_bit(rb) : 0;
+ seq_params->enable_ref_frame_mvs =
+ seq_params->enable_order_hint ? aom_rb_read_bit(rb) : 0;
+
+ if (aom_rb_read_bit(rb)) {
+ seq_params->force_screen_content_tools =
+ 2; // SELECT_SCREEN_CONTENT_TOOLS
+ } else {
+ seq_params->force_screen_content_tools = aom_rb_read_bit(rb);
+ }
+
+ if (seq_params->force_screen_content_tools > 0) {
+ if (aom_rb_read_bit(rb)) {
+ seq_params->force_integer_mv = 2; // SELECT_INTEGER_MV
+ } else {
+ seq_params->force_integer_mv = aom_rb_read_bit(rb);
+ }
+ } else {
+ seq_params->force_integer_mv = 2; // SELECT_INTEGER_MV
+ }
+ seq_params->order_hint_bits_minus_1 =
+ seq_params->enable_order_hint ? aom_rb_read_literal(rb, 3) : -1;
+ }
+
+ seq_params->enable_superres = aom_rb_read_bit(rb);
+ seq_params->enable_cdef = aom_rb_read_bit(rb);
+ seq_params->enable_restoration = aom_rb_read_bit(rb);
+}
+
+static int read_global_motion_params(WarpedMotionParams *params,
+ const WarpedMotionParams *ref_params,
+ struct aom_read_bit_buffer *rb,
+ int allow_hp) {
+ TransformationType type = aom_rb_read_bit(rb);
+ if (type != IDENTITY) {
+ if (aom_rb_read_bit(rb))
+ type = ROTZOOM;
+ else
+ type = aom_rb_read_bit(rb) ? TRANSLATION : AFFINE;
+ }
+
+ *params = default_warp_params;
+ params->wmtype = type;
+
+ if (type >= ROTZOOM) {
+ params->wmmat[2] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, 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);
+ params->wmmat[3] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[3] >> GM_ALPHA_PREC_DIFF)) *
+ GM_ALPHA_DECODE_FACTOR;
+ }
+
+ if (type >= AFFINE) {
+ params->wmmat[4] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, GM_ALPHA_MAX + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[4] >> GM_ALPHA_PREC_DIFF)) *
+ GM_ALPHA_DECODE_FACTOR;
+ params->wmmat[5] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, 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];
+ }
+
+ if (type >= TRANSLATION) {
+ const int trans_bits = (type == TRANSLATION)
+ ? GM_ABS_TRANS_ONLY_BITS - !allow_hp
+ : GM_ABS_TRANS_BITS;
+ const int trans_dec_factor =
+ (type == TRANSLATION) ? GM_TRANS_ONLY_DECODE_FACTOR * (1 << !allow_hp)
+ : GM_TRANS_DECODE_FACTOR;
+ const int trans_prec_diff = (type == TRANSLATION)
+ ? GM_TRANS_ONLY_PREC_DIFF + !allow_hp
+ : GM_TRANS_PREC_DIFF;
+ params->wmmat[0] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, (1 << trans_bits) + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[0] >> trans_prec_diff)) *
+ trans_dec_factor;
+ params->wmmat[1] = aom_rb_read_signed_primitive_refsubexpfin(
+ rb, (1 << trans_bits) + 1, SUBEXPFIN_K,
+ (ref_params->wmmat[1] >> trans_prec_diff)) *
+ trans_dec_factor;
+ }
+
+ if (params->wmtype <= AFFINE) {
+ int good_shear_params = get_shear_params(params);
+ if (!good_shear_params) return 0;
+ }
+
+ return 1;
+}
+
+static void read_global_motion(AV1_COMMON *cm, struct aom_read_bit_buffer *rb) {
+ for (int frame = LAST_FRAME; frame <= ALTREF_FRAME; ++frame) {
+ const WarpedMotionParams *ref_params =
+ cm->prev_frame ? &cm->prev_frame->global_motion[frame]
+ : &default_warp_params;
+ int good_params = read_global_motion_params(
+ &cm->global_motion[frame], ref_params, rb, cm->allow_high_precision_mv);
+ if (!good_params) {
+#if WARPED_MOTION_DEBUG
+ printf("Warning: unexpected global motion shear params from aomenc\n");
+#endif
+ cm->global_motion[frame].invalid = 1;
+ }
+
+ // TODO(sarahparker, debargha): The logic in the commented out code below
+ // does not work currently and causes mismatches when resize is on. Fix it
+ // before turning the optimization back on.
+ /*
+ YV12_BUFFER_CONFIG *ref_buf = get_ref_frame(cm, frame);
+ if (cm->width == ref_buf->y_crop_width &&
+ cm->height == ref_buf->y_crop_height) {
+ read_global_motion_params(&cm->global_motion[frame],
+ &cm->prev_frame->global_motion[frame], rb,
+ cm->allow_high_precision_mv);
+ } else {
+ cm->global_motion[frame] = default_warp_params;
+ }
+ */
+ /*
+ 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,
+ REF_FRAMES * sizeof(WarpedMotionParams));
+}
+
+static void show_existing_frame_reset(AV1Decoder *const pbi,
+ int existing_frame_idx) {
+ AV1_COMMON *const cm = &pbi->common;
+ BufferPool *const pool = cm->buffer_pool;
+ RefCntBuffer *const frame_bufs = pool->frame_bufs;
+
+ assert(cm->show_existing_frame);
+
+ cm->frame_type = KEY_FRAME;
+
+ pbi->refresh_frame_flags = (1 << REF_FRAMES) - 1;
+
+ for (int i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ cm->frame_refs[i].idx = INVALID_IDX;
+ cm->frame_refs[i].buf = NULL;
+ }
+
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+
+ cm->cur_frame->intra_only = 1;
+
+ if (cm->seq_params.frame_id_numbers_present_flag) {
+ /* If bitmask is set, update reference frame id values and
+ mark frames as valid for reference.
+ Note that the displayed frame be valid for referencing
+ in order to have been selected.
+ */
+ int refresh_frame_flags = pbi->refresh_frame_flags;
+ int display_frame_id = cm->ref_frame_id[existing_frame_idx];
+ for (int i = 0; i < REF_FRAMES; i++) {
+ if ((refresh_frame_flags >> i) & 1) {
+ cm->ref_frame_id[i] = display_frame_id;
+ cm->valid_for_referencing[i] = 1;
+ }
+ }
+ }
+
+ cm->refresh_frame_context = REFRESH_FRAME_CONTEXT_DISABLED;
+
+ // Generate next_ref_frame_map.
+ lock_buffer_pool(pool);
+ int ref_index = 0;
+ for (int 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;
+
+ // Reload the adapted CDFs from when we originally coded this keyframe
+ *cm->fc = cm->frame_contexts[existing_frame_idx];
+}
+
+static INLINE void reset_frame_buffers(AV1_COMMON *cm) {
+ RefCntBuffer *const frame_bufs = cm->buffer_pool->frame_bufs;
+ int i;
+
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ memset(&cm->next_ref_frame_map, -1, sizeof(cm->next_ref_frame_map));
+
+ lock_buffer_pool(cm->buffer_pool);
+ for (i = 0; i < FRAME_BUFFERS; ++i) {
+ if (i != cm->new_fb_idx) {
+ frame_bufs[i].ref_count = 0;
+ cm->buffer_pool->release_fb_cb(cm->buffer_pool->cb_priv,
+ &frame_bufs[i].raw_frame_buffer);
+ } else {
+ assert(frame_bufs[i].ref_count == 1);
+ }
+ frame_bufs[i].cur_frame_offset = 0;
+ av1_zero(frame_bufs[i].ref_frame_offset);
+ }
+ av1_zero_unused_internal_frame_buffers(&cm->buffer_pool->int_frame_buffers);
+ unlock_buffer_pool(cm->buffer_pool);
+}
+
+// On success, returns 0. On failure, calls aom_internal_error and does not
+// return.
+static int read_uncompressed_header(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb) {
+ AV1_COMMON *const cm = &pbi->common;
+ const SequenceHeader *const seq_params = &cm->seq_params;
+ MACROBLOCKD *const xd = &pbi->mb;
+ BufferPool *const pool = cm->buffer_pool;
+ RefCntBuffer *const frame_bufs = pool->frame_bufs;
+
+ if (!pbi->sequence_header_ready) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "No sequence header");
+ }
+
+ cm->last_frame_type = cm->frame_type;
+ cm->last_intra_only = cm->intra_only;
+
+ // NOTE: By default all coded frames to be used as a reference
+ cm->is_reference_frame = 1;
+
+ if (seq_params->reduced_still_picture_hdr) {
+ cm->show_existing_frame = 0;
+ cm->show_frame = 1;
+ cm->frame_type = KEY_FRAME;
+ cm->error_resilient_mode = 1;
+ } else {
+ cm->show_existing_frame = aom_rb_read_bit(rb);
+ cm->reset_decoder_state = 0;
+
+ if (cm->show_existing_frame) {
+ if (pbi->sequence_header_changed) {
+ aom_internal_error(
+ &cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "New sequence header starts with a 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 (seq_params->decoder_model_info_present_flag &&
+ cm->timing_info.equal_picture_interval == 0) {
+ av1_read_temporal_point_info(cm, rb);
+ }
+ if (seq_params->frame_id_numbers_present_flag) {
+ int frame_id_length = seq_params->frame_id_length;
+ 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");
+ }
+ 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);
+ cm->reset_decoder_state =
+ frame_bufs[frame_to_show].frame_type == KEY_FRAME;
+ unlock_buffer_pool(pool);
+
+ cm->lf.filter_level[0] = 0;
+ cm->lf.filter_level[1] = 0;
+ cm->show_frame = 1;
+
+ if (!frame_bufs[frame_to_show].showable_frame) {
+ aom_merge_corrupted_flag(&xd->corrupted, 1);
+ }
+ if (cm->reset_decoder_state) frame_bufs[frame_to_show].showable_frame = 0;
+
+ cm->film_grain_params = frame_bufs[frame_to_show].film_grain_params;
+
+ if (cm->reset_decoder_state) {
+ show_existing_frame_reset(pbi, existing_frame_idx);
+ } else {
+ pbi->refresh_frame_flags = 0;
+ }
+
+ return 0;
+ }
+
+ cm->frame_type = (FRAME_TYPE)aom_rb_read_literal(rb, 2); // 2 bits
+ if (pbi->sequence_header_changed) {
+ if (pbi->common.frame_type == KEY_FRAME) {
+ // This is the start of a new coded video sequence.
+ pbi->sequence_header_changed = 0;
+ pbi->decoding_first_frame = 1;
+ reset_frame_buffers(&pbi->common);
+ } else {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Sequence header has changed without a keyframe.");
+ }
+ }
+
+ cm->show_frame = aom_rb_read_bit(rb);
+ if (seq_params->still_picture &&
+ (cm->frame_type != KEY_FRAME || !cm->show_frame)) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Still pictures must be coded as shown keyframes");
+ }
+ cm->showable_frame = cm->frame_type != KEY_FRAME;
+ if (cm->show_frame) {
+ if (seq_params->decoder_model_info_present_flag &&
+ cm->timing_info.equal_picture_interval == 0)
+ av1_read_temporal_point_info(cm, rb);
+ } else {
+ // See if this frame can be used as show_existing_frame in future
+ cm->showable_frame = aom_rb_read_bit(rb);
+ }
+ cm->cur_frame->showable_frame = cm->showable_frame;
+ cm->intra_only = cm->frame_type == INTRA_ONLY_FRAME;
+ cm->error_resilient_mode =
+ frame_is_sframe(cm) || (cm->frame_type == KEY_FRAME && cm->show_frame)
+ ? 1
+ : aom_rb_read_bit(rb);
+ }
+
+ cm->disable_cdf_update = aom_rb_read_bit(rb);
+ if (seq_params->force_screen_content_tools == 2) {
+ cm->allow_screen_content_tools = aom_rb_read_bit(rb);
+ } else {
+ cm->allow_screen_content_tools = seq_params->force_screen_content_tools;
+ }
+
+ if (cm->allow_screen_content_tools) {
+ if (seq_params->force_integer_mv == 2) {
+ cm->cur_frame_force_integer_mv = aom_rb_read_bit(rb);
+ } else {
+ cm->cur_frame_force_integer_mv = seq_params->force_integer_mv;
+ }
+ } else {
+ cm->cur_frame_force_integer_mv = 0;
+ }
+
+ cm->frame_refs_short_signaling = 0;
+ int frame_size_override_flag = 0;
+ cm->allow_intrabc = 0;
+ cm->primary_ref_frame = PRIMARY_REF_NONE;
+
+ if (!seq_params->reduced_still_picture_hdr) {
+ if (seq_params->frame_id_numbers_present_flag) {
+ int frame_id_length = seq_params->frame_id_length;
+ int diff_len = seq_params->delta_frame_id_length;
+ int prev_frame_id = 0;
+ int have_prev_frame_id = !pbi->decoding_first_frame &&
+ !(cm->frame_type == KEY_FRAME && cm->show_frame);
+ if (have_prev_frame_id) {
+ prev_frame_id = cm->current_frame_id;
+ }
+ cm->current_frame_id = aom_rb_read_literal(rb, frame_id_length);
+
+ if (have_prev_frame_id) {
+ 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 (int i = 0; i < REF_FRAMES; i++) {
+ if (cm->frame_type == KEY_FRAME && cm->show_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;
+ }
+ }
+ }
+
+ frame_size_override_flag = frame_is_sframe(cm) ? 1 : aom_rb_read_bit(rb);
+
+ cm->frame_offset =
+ aom_rb_read_literal(rb, seq_params->order_hint_bits_minus_1 + 1);
+ cm->current_video_frame = cm->frame_offset;
+
+ if (!cm->error_resilient_mode && !frame_is_intra_only(cm)) {
+ cm->primary_ref_frame = aom_rb_read_literal(rb, PRIMARY_REF_BITS);
+ }
+ }
+
+ if (seq_params->decoder_model_info_present_flag) {
+ cm->buffer_removal_time_present = aom_rb_read_bit(rb);
+ if (cm->buffer_removal_time_present) {
+ for (int op_num = 0;
+ op_num < seq_params->operating_points_cnt_minus_1 + 1; op_num++) {
+ if (cm->op_params[op_num].decoder_model_param_present_flag) {
+ if ((((seq_params->operating_point_idc[op_num] >>
+ cm->temporal_layer_id) &
+ 0x1) &&
+ ((seq_params->operating_point_idc[op_num] >>
+ (cm->spatial_layer_id + 8)) &
+ 0x1)) ||
+ seq_params->operating_point_idc[op_num] == 0) {
+ cm->op_frame_timing[op_num].buffer_removal_time =
+ aom_rb_read_unsigned_literal(
+ rb, cm->buffer_model.buffer_removal_time_length);
+ } else {
+ cm->op_frame_timing[op_num].buffer_removal_time = 0;
+ }
+ } else {
+ cm->op_frame_timing[op_num].buffer_removal_time = 0;
+ }
+ }
+ }
+ }
+ if (cm->frame_type == KEY_FRAME) {
+ if (!cm->show_frame) // unshown keyframe (forward keyframe)
+ pbi->refresh_frame_flags = aom_rb_read_literal(rb, REF_FRAMES);
+ else // shown keyframe
+ pbi->refresh_frame_flags = (1 << REF_FRAMES) - 1;
+
+ for (int i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ cm->frame_refs[i].idx = INVALID_IDX;
+ cm->frame_refs[i].buf = NULL;
+ }
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+ } else {
+ if (cm->intra_only) {
+ pbi->refresh_frame_flags = aom_rb_read_literal(rb, REF_FRAMES);
+ if (pbi->refresh_frame_flags == 0xFF) {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Intra only frames cannot have refresh flags 0xFF");
+ }
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+ } else if (pbi->need_resync != 1) { /* Skip if need resync */
+ pbi->refresh_frame_flags =
+ frame_is_sframe(cm) ? 0xFF : aom_rb_read_literal(rb, REF_FRAMES);
+ 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;
+ }
+ }
+ }
+
+ if (!frame_is_intra_only(cm) || pbi->refresh_frame_flags != 0xFF) {
+ // Read all ref frame order hints if error_resilient_mode == 1
+ if (cm->error_resilient_mode && seq_params->enable_order_hint) {
+ for (int ref_idx = 0; ref_idx < REF_FRAMES; ref_idx++) {
+ // Read order hint from bit stream
+ unsigned int frame_offset =
+ aom_rb_read_literal(rb, seq_params->order_hint_bits_minus_1 + 1);
+ // Get buffer index
+ int buf_idx = cm->ref_frame_map[ref_idx];
+ assert(buf_idx < FRAME_BUFFERS);
+ if (buf_idx == -1 ||
+ frame_offset != frame_bufs[buf_idx].cur_frame_offset) {
+ if (buf_idx >= 0) {
+ lock_buffer_pool(pool);
+ decrease_ref_count(buf_idx, frame_bufs, pool);
+ unlock_buffer_pool(pool);
+ }
+ // If no corresponding buffer exists, allocate a new buffer with all
+ // pixels set to neutral grey.
+ buf_idx = get_free_fb(cm);
+ if (buf_idx == INVALID_IDX) {
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Unable to find free frame buffer");
+ }
+ lock_buffer_pool(pool);
+ if (aom_realloc_frame_buffer(
+ &frame_bufs[buf_idx].buf, seq_params->max_frame_width,
+ seq_params->max_frame_height, seq_params->subsampling_x,
+ seq_params->subsampling_y, seq_params->use_highbitdepth,
+ AOM_BORDER_IN_PIXELS, cm->byte_alignment,
+ &pool->frame_bufs[buf_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);
+ set_planes_to_neutral_grey(seq_params, &frame_bufs[buf_idx].buf, 0);
+
+ cm->ref_frame_map[ref_idx] = buf_idx;
+ frame_bufs[buf_idx].cur_frame_offset = frame_offset;
+ }
+ }
+ }
+ }
+
+ if (cm->frame_type == KEY_FRAME) {
+ setup_frame_size(cm, frame_size_override_flag, rb);
+
+ if (cm->allow_screen_content_tools && !av1_superres_scaled(cm))
+ cm->allow_intrabc = aom_rb_read_bit(rb);
+ cm->allow_ref_frame_mvs = 0;
+ cm->prev_frame = NULL;
+ } else {
+ cm->allow_ref_frame_mvs = 0;
+
+ if (cm->intra_only) {
+ cm->cur_frame->film_grain_params_present =
+ seq_params->film_grain_params_present;
+ setup_frame_size(cm, frame_size_override_flag, rb);
+ if (cm->allow_screen_content_tools && !av1_superres_scaled(cm))
+ cm->allow_intrabc = aom_rb_read_bit(rb);
+
+ } else if (pbi->need_resync != 1) { /* Skip if need resync */
+
+ // Frame refs short signaling is off when error resilient mode is on.
+ if (seq_params->enable_order_hint)
+ cm->frame_refs_short_signaling = aom_rb_read_bit(rb);
+
+ if (cm->frame_refs_short_signaling) {
+ // == LAST_FRAME ==
+ const int lst_ref = aom_rb_read_literal(rb, REF_FRAMES_LOG2);
+ const int lst_idx = cm->ref_frame_map[lst_ref];
+
+ // == GOLDEN_FRAME ==
+ const int gld_ref = aom_rb_read_literal(rb, REF_FRAMES_LOG2);
+ const int gld_idx = cm->ref_frame_map[gld_ref];
+
+ // Most of the time, streams start with a keyframe. In that case,
+ // ref_frame_map will have been filled in at that point and will not
+ // contain any -1's. However, streams are explicitly allowed to start
+ // with an intra-only frame, so long as they don't then signal a
+ // reference to a slot that hasn't been set yet. That's what we are
+ // checking here.
+ if (lst_idx == -1)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Inter frame requests nonexistent reference");
+ if (gld_idx == -1)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Inter frame requests nonexistent reference");
+
+ av1_set_frame_refs(cm, lst_ref, gld_ref);
+ }
+
+ for (int i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ int ref = 0;
+ if (!cm->frame_refs_short_signaling) {
+ ref = aom_rb_read_literal(rb, REF_FRAMES_LOG2);
+ const int idx = cm->ref_frame_map[ref];
+
+ // Most of the time, streams start with a keyframe. In that case,
+ // ref_frame_map will have been filled in at that point and will not
+ // contain any -1's. However, streams are explicitly allowed to start
+ // with an intra-only frame, so long as they don't then signal a
+ // reference to a slot that hasn't been set yet. That's what we are
+ // checking here.
+ if (idx == -1)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Inter frame requests nonexistent reference");
+
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ ref_frame->idx = idx;
+ ref_frame->buf = &frame_bufs[idx].buf;
+ ref_frame->map_idx = ref;
+ } else {
+ ref = cm->frame_refs[i].map_idx;
+ }
+
+ cm->ref_frame_sign_bias[LAST_FRAME + i] = 0;
+
+ if (seq_params->frame_id_numbers_present_flag) {
+ int frame_id_length = seq_params->frame_id_length;
+ int diff_len = seq_params->delta_frame_id_length;
+ int delta_frame_id_minus_1 = aom_rb_read_literal(rb, diff_len);
+ int ref_frame_id =
+ ((cm->current_frame_id - (delta_frame_id_minus_1 + 1) +
+ (1 << frame_id_length)) %
+ (1 << frame_id_length));
+ // Compare values derived from delta_frame_id_minus_1 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");
+ }
+ }
+
+ if (!cm->error_resilient_mode && frame_size_override_flag) {
+ setup_frame_size_with_refs(cm, rb);
+ } else {
+ setup_frame_size(cm, frame_size_override_flag, rb);
+ }
+
+ if (cm->cur_frame_force_integer_mv) {
+ cm->allow_high_precision_mv = 0;
+ } else {
+ cm->allow_high_precision_mv = aom_rb_read_bit(rb);
+ }
+ cm->interp_filter = read_frame_interp_filter(rb);
+ cm->switchable_motion_mode = aom_rb_read_bit(rb);
+ }
+
+ cm->prev_frame = get_prev_frame(cm);
+ if (cm->primary_ref_frame != PRIMARY_REF_NONE &&
+ cm->frame_refs[cm->primary_ref_frame].idx < 0) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Reference frame containing this frame's initial "
+ "frame context is unavailable.");
+ }
+
+ if (!cm->intra_only && pbi->need_resync != 1) {
+ if (frame_might_allow_ref_frame_mvs(cm))
+ cm->allow_ref_frame_mvs = aom_rb_read_bit(rb);
+ else
+ cm->allow_ref_frame_mvs = 0;
+
+ for (int i = 0; i < INTER_REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_buf = &cm->frame_refs[i];
+ 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);
+ if ((!av1_is_valid_scale(&ref_buf->sf)))
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Reference frame has invalid dimensions");
+ }
+ }
+ }
+
+ av1_setup_frame_buf_refs(cm);
+
+ av1_setup_frame_sign_bias(cm);
+
+ cm->cur_frame->intra_only = cm->frame_type == KEY_FRAME || cm->intra_only;
+ cm->cur_frame->frame_type = cm->frame_type;
+
+ if (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 = pbi->refresh_frame_flags;
+ for (int 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;
+ }
+ }
+ }
+
+ const int might_bwd_adapt =
+ !(seq_params->reduced_still_picture_hdr) && !(cm->disable_cdf_update);
+ if (might_bwd_adapt) {
+ cm->refresh_frame_context = aom_rb_read_bit(rb)
+ ? REFRESH_FRAME_CONTEXT_DISABLED
+ : REFRESH_FRAME_CONTEXT_BACKWARD;
+ } else {
+ cm->refresh_frame_context = REFRESH_FRAME_CONTEXT_DISABLED;
+ }
+
+ get_frame_new_buffer(cm)->bit_depth = seq_params->bit_depth;
+ get_frame_new_buffer(cm)->color_primaries = seq_params->color_primaries;
+ get_frame_new_buffer(cm)->transfer_characteristics =
+ seq_params->transfer_characteristics;
+ get_frame_new_buffer(cm)->matrix_coefficients =
+ seq_params->matrix_coefficients;
+ get_frame_new_buffer(cm)->monochrome = seq_params->monochrome;
+ get_frame_new_buffer(cm)->chroma_sample_position =
+ seq_params->chroma_sample_position;
+ get_frame_new_buffer(cm)->color_range = seq_params->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");
+ }
+
+ // Generate next_ref_frame_map.
+ lock_buffer_pool(pool);
+ int ref_index = 0;
+ for (int 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 (cm->allow_intrabc) {
+ // Set parameters corresponding to no filtering.
+ struct loopfilter *lf = &cm->lf;
+ lf->filter_level[0] = 0;
+ lf->filter_level[1] = 0;
+ cm->cdef_bits = 0;
+ cm->cdef_strengths[0] = 0;
+ cm->nb_cdef_strengths = 1;
+ cm->cdef_uv_strengths[0] = 0;
+ 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;
+ }
+
+ read_tile_info(pbi, rb);
+ setup_quantization(cm, rb);
+ xd->bd = (int)seq_params->bit_depth;
+
+ if (cm->num_allocated_above_context_planes < av1_num_planes(cm) ||
+ cm->num_allocated_above_context_mi_col < cm->mi_cols ||
+ cm->num_allocated_above_contexts < cm->tile_rows) {
+ av1_free_above_context_buffers(cm, cm->num_allocated_above_contexts);
+ if (av1_alloc_above_context_buffers(cm, cm->tile_rows))
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate context buffers");
+ }
+
+ if (cm->primary_ref_frame == PRIMARY_REF_NONE) {
+ av1_setup_past_independence(cm);
+ }
+
+ setup_segmentation(cm, rb);
+
+ cm->delta_q_res = 1;
+ cm->delta_lf_res = 1;
+ cm->delta_lf_present_flag = 0;
+ cm->delta_lf_multi = 0;
+ cm->delta_q_present_flag = cm->base_qindex > 0 ? aom_rb_read_bit(rb) : 0;
+ if (cm->delta_q_present_flag) {
+ xd->current_qindex = cm->base_qindex;
+ cm->delta_q_res = 1 << aom_rb_read_literal(rb, 2);
+ if (!cm->allow_intrabc) cm->delta_lf_present_flag = aom_rb_read_bit(rb);
+ if (cm->delta_lf_present_flag) {
+ cm->delta_lf_res = 1 << aom_rb_read_literal(rb, 2);
+ cm->delta_lf_multi = aom_rb_read_bit(rb);
+ av1_reset_loop_filter_delta(xd, av1_num_planes(cm));
+ }
+ }
+
+ xd->cur_frame_force_integer_mv = cm->cur_frame_force_integer_mv;
+
+ for (int 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->u_dc_delta_q == 0 && cm->u_ac_delta_q == 0 &&
+ cm->v_dc_delta_q == 0 && cm->v_ac_delta_q == 0;
+ xd->qindex[i] = qindex;
+ }
+ cm->coded_lossless = is_coded_lossless(cm, xd);
+ cm->all_lossless = cm->coded_lossless && !av1_superres_scaled(cm);
+ setup_segmentation_dequant(cm);
+ if (cm->coded_lossless) {
+ cm->lf.filter_level[0] = 0;
+ cm->lf.filter_level[1] = 0;
+ }
+ if (cm->coded_lossless || !seq_params->enable_cdef) {
+ cm->cdef_bits = 0;
+ cm->cdef_strengths[0] = 0;
+ cm->cdef_uv_strengths[0] = 0;
+ }
+ if (cm->all_lossless || !seq_params->enable_restoration) {
+ 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;
+ }
+ setup_loopfilter(cm, rb);
+
+ if (!cm->coded_lossless && seq_params->enable_cdef) {
+ setup_cdef(cm, rb);
+ }
+ if (!cm->all_lossless && seq_params->enable_restoration) {
+ decode_restoration_mode(cm, rb);
+ }
+
+ cm->tx_mode = read_tx_mode(cm, rb);
+ cm->reference_mode = read_frame_reference_mode(cm, rb);
+ if (cm->reference_mode != SINGLE_REFERENCE) setup_compound_reference_mode(cm);
+
+ av1_setup_skip_mode_allowed(cm);
+ cm->skip_mode_flag = cm->is_skip_mode_allowed ? aom_rb_read_bit(rb) : 0;
+
+ if (frame_might_allow_warped_motion(cm))
+ cm->allow_warped_motion = aom_rb_read_bit(rb);
+ else
+ cm->allow_warped_motion = 0;
+
+ cm->reduced_tx_set_used = aom_rb_read_bit(rb);
+
+ if (cm->allow_ref_frame_mvs && !frame_might_allow_ref_frame_mvs(cm)) {
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Frame wrongly requests reference frame MVs");
+ }
+
+ if (!frame_is_intra_only(cm)) read_global_motion(cm, rb);
+
+ cm->cur_frame->film_grain_params_present =
+ seq_params->film_grain_params_present;
+ read_film_grain(cm, rb);
+
+#if EXT_TILE_DEBUG
+ if (pbi->ext_tile_debug && cm->large_scale_tile) {
+ read_ext_tile_info(pbi, rb);
+ av1_set_single_tile_decoding_mode(cm);
+ }
+#endif // EXT_TILE_DEBUG
+ return 0;
+}
+
+struct aom_read_bit_buffer *av1_init_read_bit_buffer(
+ AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
+ const uint8_t *data_end) {
+ rb->bit_offset = 0;
+ rb->error_handler = error_handler;
+ rb->error_handler_data = &pbi->common;
+ rb->bit_buffer = data;
+ rb->bit_buffer_end = data_end;
+ return rb;
+}
+
+void av1_read_frame_size(struct aom_read_bit_buffer *rb, int num_bits_width,
+ int num_bits_height, int *width, int *height) {
+ *width = aom_rb_read_literal(rb, num_bits_width) + 1;
+ *height = aom_rb_read_literal(rb, num_bits_height) + 1;
+}
+
+BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb) {
+ int profile = aom_rb_read_literal(rb, PROFILE_BITS);
+ return (BITSTREAM_PROFILE)profile;
+}
+
+void superres_post_decode(AV1Decoder *pbi) {
+ AV1_COMMON *const cm = &pbi->common;
+ BufferPool *const pool = cm->buffer_pool;
+
+ if (!av1_superres_scaled(cm)) return;
+ assert(!cm->all_lossless);
+
+ lock_buffer_pool(pool);
+ av1_superres_upscale(cm, pool);
+ unlock_buffer_pool(pool);
+}
+
+uint32_t av1_decode_frame_headers_and_setup(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb,
+ const uint8_t *data,
+ const uint8_t **p_data_end,
+ int trailing_bits_present) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int num_planes = av1_num_planes(cm);
+ MACROBLOCKD *const xd = &pbi->mb;
+
+#if CONFIG_BITSTREAM_DEBUG
+ bitstream_queue_set_frame_read(cm->current_video_frame * 2 + cm->show_frame);
+#endif
+#if CONFIG_MISMATCH_DEBUG
+ mismatch_move_frame_idx_r();
+#endif
+
+ for (int i = LAST_FRAME; i <= ALTREF_FRAME; ++i) {
+ cm->global_motion[i] = default_warp_params;
+ cm->cur_frame->global_motion[i] = default_warp_params;
+ }
+ xd->global_motion = cm->global_motion;
+
+ read_uncompressed_header(pbi, rb);
+
+ if (trailing_bits_present) av1_check_trailing_bits(pbi, rb);
+
+ // If cm->single_tile_decoding = 0, the independent decoding of a single tile
+ // or a section of a frame is not allowed.
+ if (!cm->single_tile_decoding &&
+ (pbi->dec_tile_row >= 0 || pbi->dec_tile_col >= 0)) {
+ pbi->dec_tile_row = -1;
+ pbi->dec_tile_col = -1;
+ }
+
+ const uint32_t uncomp_hdr_size =
+ (uint32_t)aom_rb_bytes_read(rb); // Size of the uncompressed header
+ YV12_BUFFER_CONFIG *new_fb = get_frame_new_buffer(cm);
+ xd->cur_buf = new_fb;
+ if (av1_allow_intrabc(cm)) {
+ av1_setup_scale_factors_for_frame(
+ &cm->sf_identity, xd->cur_buf->y_crop_width, xd->cur_buf->y_crop_height,
+ xd->cur_buf->y_crop_width, xd->cur_buf->y_crop_height);
+ }
+
+ if (cm->show_existing_frame) {
+ // showing a frame directly
+ *p_data_end = data + uncomp_hdr_size;
+ if (cm->reset_decoder_state) {
+ // Use the default frame context values.
+ *cm->fc = cm->frame_contexts[FRAME_CONTEXT_DEFAULTS];
+ if (!cm->fc->initialized)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Uninitialized entropy context.");
+ }
+ return uncomp_hdr_size;
+ }
+
+ cm->setup_mi(cm);
+
+ cm->current_frame_seg_map = cm->cur_frame->seg_map;
+
+ av1_setup_motion_field(cm);
+
+ av1_setup_block_planes(xd, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y, num_planes);
+ if (cm->primary_ref_frame == PRIMARY_REF_NONE) {
+ // use the default frame context values
+ *cm->fc = cm->frame_contexts[FRAME_CONTEXT_DEFAULTS];
+ } else {
+ *cm->fc = cm->frame_contexts[cm->frame_refs[cm->primary_ref_frame].idx];
+ }
+ if (!cm->fc->initialized)
+ aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
+ "Uninitialized entropy context.");
+
+ xd->corrupted = 0;
+ return uncomp_hdr_size;
+}
+
+// Once-per-frame initialization
+static void setup_frame_info(AV1Decoder *pbi) {
+ AV1_COMMON *const cm = &pbi->common;
+
+ 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);
+ }
+ const int use_highbd = cm->seq_params.use_highbitdepth ? 1 : 0;
+ const int buf_size = MC_TEMP_BUF_PELS << use_highbd;
+ if (pbi->td.mc_buf_size != buf_size) {
+ av1_free_mc_tmp_buf(&pbi->td);
+ allocate_mc_tmp_buf(cm, &pbi->td, buf_size, use_highbd);
+ }
+}
+
+void av1_decode_tg_tiles_and_wrapup(AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end,
+ const uint8_t **p_data_end, int start_tile,
+ int end_tile, int initialize_flag) {
+ AV1_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
+ const int tile_count_tg = end_tile - start_tile + 1;
+
+ if (initialize_flag) setup_frame_info(pbi);
+ const int num_planes = av1_num_planes(cm);
+#if LOOP_FILTER_BITMASK
+ av1_loop_filter_frame_init(cm, 0, num_planes);
+ av1_zero_array(cm->lf.lfm, cm->lf.lfm_num);
+#endif
+
+ if (pbi->max_threads > 1 && !(cm->large_scale_tile && !pbi->ext_tile_debug) &&
+ pbi->row_mt)
+ *p_data_end =
+ decode_tiles_row_mt(pbi, data, data_end, start_tile, end_tile);
+ else if (pbi->max_threads > 1 && tile_count_tg > 1 &&
+ !(cm->large_scale_tile && !pbi->ext_tile_debug))
+ *p_data_end = decode_tiles_mt(pbi, data, data_end, start_tile, end_tile);
+ else
+ *p_data_end = decode_tiles(pbi, data, data_end, start_tile, end_tile);
+
+ // If the bit stream is monochrome, set the U and V buffers to a constant.
+ if (num_planes < 3) {
+ set_planes_to_neutral_grey(&cm->seq_params, xd->cur_buf, 1);
+ }
+
+ if (end_tile != cm->tile_rows * cm->tile_cols - 1) {
+ return;
+ }
+
+ if (!cm->allow_intrabc && !cm->single_tile_decoding) {
+ if (cm->lf.filter_level[0] || cm->lf.filter_level[1]) {
+#if LOOP_FILTER_BITMASK
+ av1_loop_filter_frame(get_frame_new_buffer(cm), cm, &pbi->mb, 1, 0,
+ num_planes, 0);
+#else
+ if (pbi->num_workers > 1) {
+ av1_loop_filter_frame_mt(get_frame_new_buffer(cm), cm, &pbi->mb, 0,
+ num_planes, 0, pbi->tile_workers,
+ pbi->num_workers, &pbi->lf_row_sync);
+ } else {
+ av1_loop_filter_frame(get_frame_new_buffer(cm), cm, &pbi->mb, 0,
+ num_planes, 0);
+ }
+#endif
+ }
+
+ const int do_loop_restoration =
+ 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;
+ const int do_cdef =
+ !cm->skip_loop_filter && !cm->coded_lossless &&
+ (cm->cdef_bits || cm->cdef_strengths[0] || cm->cdef_uv_strengths[0]);
+ const int do_superres = av1_superres_scaled(cm);
+ const int optimized_loop_restoration = !do_cdef && !do_superres;
+
+ if (!optimized_loop_restoration) {
+ if (do_loop_restoration)
+ av1_loop_restoration_save_boundary_lines(&pbi->cur_buf->buf, cm, 0);
+
+ if (do_cdef) av1_cdef_frame(&pbi->cur_buf->buf, cm, &pbi->mb);
+
+ superres_post_decode(pbi);
+
+ if (do_loop_restoration) {
+ av1_loop_restoration_save_boundary_lines(&pbi->cur_buf->buf, cm, 1);
+ if (pbi->num_workers > 1) {
+ av1_loop_restoration_filter_frame_mt(
+ (YV12_BUFFER_CONFIG *)xd->cur_buf, cm, optimized_loop_restoration,
+ pbi->tile_workers, pbi->num_workers, &pbi->lr_row_sync,
+ &pbi->lr_ctxt);
+ } else {
+ av1_loop_restoration_filter_frame((YV12_BUFFER_CONFIG *)xd->cur_buf,
+ cm, optimized_loop_restoration,
+ &pbi->lr_ctxt);
+ }
+ }
+ } else {
+ // In no cdef and no superres case. Provide an optimized version of
+ // loop_restoration_filter.
+ if (do_loop_restoration) {
+ if (pbi->num_workers > 1) {
+ av1_loop_restoration_filter_frame_mt(
+ (YV12_BUFFER_CONFIG *)xd->cur_buf, cm, optimized_loop_restoration,
+ pbi->tile_workers, pbi->num_workers, &pbi->lr_row_sync,
+ &pbi->lr_ctxt);
+ } else {
+ av1_loop_restoration_filter_frame((YV12_BUFFER_CONFIG *)xd->cur_buf,
+ cm, optimized_loop_restoration,
+ &pbi->lr_ctxt);
+ }
+ }
+ }
+ }
+
+ if (!xd->corrupted) {
+ if (cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
+ assert(cm->context_update_tile_id < pbi->allocated_tiles);
+ *cm->fc = pbi->tile_data[cm->context_update_tile_id].tctx;
+ av1_reset_cdf_symbol_counters(cm->fc);
+ }
+ } 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->large_scale_tile) {
+ cm->frame_contexts[cm->new_fb_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..ddad273f1
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodeframe.h
@@ -0,0 +1,85 @@
+/*
+ * 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_AV1_DECODER_DECODEFRAME_H_
+#define AOM_AV1_DECODER_DECODEFRAME_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1Decoder;
+struct aom_read_bit_buffer;
+struct ThreadData;
+
+// Reads the middle part of the sequence header OBU (from
+// frame_width_bits_minus_1 to enable_restoration) into seq_params.
+// Reports errors by calling rb->error_handler() or aom_internal_error().
+void av1_read_sequence_header(AV1_COMMON *cm, struct aom_read_bit_buffer *rb,
+ SequenceHeader *seq_params);
+
+void av1_read_frame_size(struct aom_read_bit_buffer *rb, int num_bits_width,
+ int num_bits_height, int *width, int *height);
+BITSTREAM_PROFILE av1_read_profile(struct aom_read_bit_buffer *rb);
+
+// Returns 0 on success. Sets pbi->common.error.error_code and returns -1 on
+// failure.
+int av1_check_trailing_bits(struct AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb);
+
+// On success, returns the frame header size. On failure, calls
+// aom_internal_error and does not return.
+// TODO(wtc): Figure out and document the p_data_end parameter.
+uint32_t av1_decode_frame_headers_and_setup(struct AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb,
+ const uint8_t *data,
+ const uint8_t **p_data_end,
+ int trailing_bits_present);
+
+void av1_decode_tg_tiles_and_wrapup(struct AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end,
+ const uint8_t **p_data_end, int startTile,
+ int endTile, int initialize_flag);
+
+// Implements the color_config() function in the spec. Reports errors by
+// calling rb->error_handler() or aom_internal_error().
+void av1_read_color_config(struct aom_read_bit_buffer *rb,
+ int allow_lowbitdepth, SequenceHeader *seq_params,
+ struct aom_internal_error_info *error_info);
+
+// Implements the timing_info() function in the spec. Reports errors by calling
+// rb->error_handler().
+void av1_read_timing_info_header(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb);
+
+// Implements the decoder_model_info() function in the spec. Reports errors by
+// calling rb->error_handler().
+void av1_read_decoder_model_info(AV1_COMMON *cm,
+ struct aom_read_bit_buffer *rb);
+
+// Implements the operating_parameters_info() function in the spec. Reports
+// errors by calling rb->error_handler() or aom_internal_error().
+void av1_read_op_parameters_info(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *rb, int op_num);
+
+struct aom_read_bit_buffer *av1_init_read_bit_buffer(
+ struct AV1Decoder *pbi, struct aom_read_bit_buffer *rb, const uint8_t *data,
+ const uint8_t *data_end);
+
+void av1_free_mc_tmp_buf(struct ThreadData *thread_data);
+
+void av1_set_single_tile_decoding_mode(AV1_COMMON *const cm);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_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..551e4d543
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodemv.c
@@ -0,0 +1,1560 @@
+/*
+ * 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/cfl.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"
+#include "av1/common/reconintra.h"
+#include "av1/common/seg_common.h"
+#include "av1/common/warped_motion.h"
+
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/decodemv.h"
+
+#include "aom_dsp/aom_dsp_common.h"
+
+#define ACCT_STR __func__
+
+#define DEC_MISMATCH_DEBUG 0
+
+static PREDICTION_MODE read_intra_mode(aom_reader *r, aom_cdf_prob *cdf) {
+ return (PREDICTION_MODE)aom_read_symbol(r, cdf, INTRA_MODES, ACCT_STR);
+}
+
+static void read_cdef(AV1_COMMON *cm, aom_reader *r, MACROBLOCKD *const xd,
+ int mi_col, int mi_row) {
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ if (cm->coded_lossless) return;
+ if (cm->allow_intrabc) {
+ assert(cm->cdef_bits == 0);
+ return;
+ }
+
+ if (!(mi_col & (cm->seq_params.mib_size - 1)) &&
+ !(mi_row & (cm->seq_params.mib_size - 1))) { // Top left?
+ xd->cdef_preset[0] = xd->cdef_preset[1] = xd->cdef_preset[2] =
+ xd->cdef_preset[3] = -1;
+ }
+ // Read CDEF param at the first non-skip coding block
+ const int mask = (1 << (6 - MI_SIZE_LOG2));
+ const int m = ~(mask - 1);
+ const int index = cm->seq_params.sb_size == BLOCK_128X128
+ ? !!(mi_col & mask) + 2 * !!(mi_row & mask)
+ : 0;
+ cm->mi_grid_visible[(mi_row & m) * cm->mi_stride + (mi_col & m)]
+ ->cdef_strength = xd->cdef_preset[index] =
+ xd->cdef_preset[index] == -1 && !mbmi->skip
+ ? aom_read_literal(r, cm->cdef_bits, ACCT_STR)
+ : xd->cdef_preset[index];
+}
+
+static int read_delta_qindex(AV1_COMMON *cm, const MACROBLOCKD *xd,
+ aom_reader *r, MB_MODE_INFO *const mbmi,
+ int mi_col, int mi_row) {
+ int sign, abs, reduced_delta_qindex = 0;
+ BLOCK_SIZE bsize = mbmi->sb_type;
+ const int b_col = mi_col & (cm->seq_params.mib_size - 1);
+ const int b_row = mi_row & (cm->seq_params.mib_size - 1);
+ const int read_delta_q_flag = (b_col == 0 && b_row == 0);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ if ((bsize != cm->seq_params.sb_size || mbmi->skip == 0) &&
+ read_delta_q_flag) {
+ abs = aom_read_symbol(r, ec_ctx->delta_q_cdf, DELTA_Q_PROBS + 1, ACCT_STR);
+ const int smallval = (abs < DELTA_Q_SMALL);
+
+ if (!smallval) {
+ const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1;
+ const int 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;
+}
+static int read_delta_lflevel(const AV1_COMMON *const cm, aom_reader *r,
+ aom_cdf_prob *const cdf,
+ const MB_MODE_INFO *const mbmi, int mi_col,
+ int mi_row) {
+ int reduced_delta_lflevel = 0;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const int b_col = mi_col & (cm->seq_params.mib_size - 1);
+ const int b_row = mi_row & (cm->seq_params.mib_size - 1);
+ const int read_delta_lf_flag = (b_col == 0 && b_row == 0);
+
+ if ((bsize != cm->seq_params.sb_size || mbmi->skip == 0) &&
+ read_delta_lf_flag) {
+ int abs = aom_read_symbol(r, cdf, DELTA_LF_PROBS + 1, ACCT_STR);
+ const int smallval = (abs < DELTA_LF_SMALL);
+ if (!smallval) {
+ const int rem_bits = aom_read_literal(r, 3, ACCT_STR) + 1;
+ const int thr = (1 << rem_bits) + 1;
+ abs = aom_read_literal(r, rem_bits, ACCT_STR) + thr;
+ }
+ const int sign = abs ? aom_read_bit(r, ACCT_STR) : 1;
+ reduced_delta_lflevel = sign ? -abs : abs;
+ }
+ return reduced_delta_lflevel;
+}
+
+static UV_PREDICTION_MODE read_intra_mode_uv(FRAME_CONTEXT *ec_ctx,
+ aom_reader *r,
+ CFL_ALLOWED_TYPE cfl_allowed,
+ PREDICTION_MODE y_mode) {
+ const UV_PREDICTION_MODE uv_mode =
+ aom_read_symbol(r, ec_ctx->uv_mode_cdf[cfl_allowed][y_mode],
+ UV_INTRA_MODES - !cfl_allowed, ACCT_STR);
+ return uv_mode;
+}
+
+static int read_cfl_alphas(FRAME_CONTEXT *const ec_ctx, aom_reader *r,
+ int *signs_out) {
+ const int joint_sign =
+ aom_read_symbol(r, ec_ctx->cfl_sign_cdf, CFL_JOINT_SIGNS, "cfl:signs");
+ int idx = 0;
+ // Magnitudes are only coded for nonzero values
+ if (CFL_SIGN_U(joint_sign) != CFL_SIGN_ZERO) {
+ aom_cdf_prob *cdf_u = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_U(joint_sign)];
+ idx = aom_read_symbol(r, cdf_u, CFL_ALPHABET_SIZE, "cfl:alpha_u")
+ << CFL_ALPHABET_SIZE_LOG2;
+ }
+ if (CFL_SIGN_V(joint_sign) != CFL_SIGN_ZERO) {
+ aom_cdf_prob *cdf_v = ec_ctx->cfl_alpha_cdf[CFL_CONTEXT_V(joint_sign)];
+ idx += aom_read_symbol(r, cdf_v, CFL_ALPHABET_SIZE, "cfl:alpha_v");
+ }
+ *signs_out = joint_sign;
+ return idx;
+}
+
+static INTERINTRA_MODE read_interintra_mode(MACROBLOCKD *xd, aom_reader *r,
+ int size_group) {
+ const INTERINTRA_MODE ii_mode = (INTERINTRA_MODE)aom_read_symbol(
+ r, xd->tile_ctx->interintra_mode_cdf[size_group], INTERINTRA_MODES,
+ ACCT_STR);
+ return ii_mode;
+}
+
+static PREDICTION_MODE read_inter_mode(FRAME_CONTEXT *ec_ctx, aom_reader *r,
+ int16_t ctx) {
+ int16_t mode_ctx = ctx & NEWMV_CTX_MASK;
+ int is_newmv, is_zeromv, is_refmv;
+ is_newmv = aom_read_symbol(r, ec_ctx->newmv_cdf[mode_ctx], 2, ACCT_STR) == 0;
+ if (is_newmv) return NEWMV;
+
+ mode_ctx = (ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK;
+ is_zeromv =
+ aom_read_symbol(r, ec_ctx->zeromv_cdf[mode_ctx], 2, ACCT_STR) == 0;
+ if (is_zeromv) return GLOBALMV;
+
+ mode_ctx = (ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
+ is_refmv = aom_read_symbol(r, ec_ctx->refmv_cdf[mode_ctx], 2, ACCT_STR) == 0;
+ if (is_refmv)
+ return NEARESTMV;
+ else
+ return NEARMV;
+}
+
+static void read_drl_idx(FRAME_CONTEXT *ec_ctx, 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 (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV) {
+ for (int 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);
+ int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR);
+ mbmi->ref_mv_idx = idx + drl_idx;
+ if (!drl_idx) return;
+ }
+ }
+ }
+ if (have_nearmv_in_inter_mode(mbmi->mode)) {
+ // Offset the NEARESTMV mode.
+ // TODO(jingning): Unify the two syntax decoding loops after the NEARESTMV
+ // mode is factored in.
+ for (int 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);
+ int drl_idx = aom_read_symbol(r, ec_ctx->drl_cdf[drl_ctx], 2, ACCT_STR);
+ mbmi->ref_mv_idx = idx + drl_idx - 1;
+ if (!drl_idx) return;
+ }
+ }
+ }
+}
+
+static MOTION_MODE read_motion_mode(AV1_COMMON *cm, MACROBLOCKD *xd,
+ MB_MODE_INFO *mbmi, aom_reader *r) {
+ if (cm->switchable_motion_mode == 0) return SIMPLE_TRANSLATION;
+ if (mbmi->skip_mode) return SIMPLE_TRANSLATION;
+
+ const MOTION_MODE last_motion_mode_allowed =
+ motion_mode_allowed(xd->global_motion, xd, mbmi, cm->allow_warped_motion);
+ int motion_mode;
+
+ if (last_motion_mode_allowed == SIMPLE_TRANSLATION) return SIMPLE_TRANSLATION;
+
+ if (last_motion_mode_allowed == OBMC_CAUSAL) {
+ motion_mode =
+ aom_read_symbol(r, xd->tile_ctx->obmc_cdf[mbmi->sb_type], 2, ACCT_STR);
+ return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode);
+ } else {
+ motion_mode =
+ aom_read_symbol(r, xd->tile_ctx->motion_mode_cdf[mbmi->sb_type],
+ MOTION_MODES, ACCT_STR);
+ return (MOTION_MODE)(SIMPLE_TRANSLATION + motion_mode);
+ }
+}
+
+static PREDICTION_MODE read_inter_compound_mode(MACROBLOCKD *xd, aom_reader *r,
+ int16_t ctx) {
+ const int mode =
+ aom_read_symbol(r, xd->tile_ctx->inter_compound_mode_cdf[ctx],
+ INTER_COMPOUND_MODES, ACCT_STR);
+ assert(is_inter_compound_mode(NEAREST_NEARESTMV + mode));
+ return NEAREST_NEARESTMV + mode;
+}
+
+int av1_neg_deinterleave(int diff, int ref, int max) {
+ if (!ref) return diff;
+ if (ref >= (max - 1)) return max - diff - 1;
+ if (2 * ref < max) {
+ if (diff <= 2 * ref) {
+ if (diff & 1)
+ return ref + ((diff + 1) >> 1);
+ else
+ return ref - (diff >> 1);
+ }
+ return diff;
+ } else {
+ if (diff <= 2 * (max - ref - 1)) {
+ if (diff & 1)
+ return ref + ((diff + 1) >> 1);
+ else
+ return ref - (diff >> 1);
+ }
+ return max - (diff + 1);
+ }
+}
+
+static int read_segment_id(AV1_COMMON *const cm, const MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r, int skip) {
+ int cdf_num;
+ const int pred = av1_get_spatial_seg_pred(cm, xd, mi_row, mi_col, &cdf_num);
+ if (skip) return pred;
+
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ struct segmentation *const seg = &cm->seg;
+ struct segmentation_probs *const segp = &ec_ctx->seg;
+ aom_cdf_prob *pred_cdf = segp->spatial_pred_seg_cdf[cdf_num];
+ const int coded_id = aom_read_symbol(r, pred_cdf, MAX_SEGMENTS, ACCT_STR);
+ const int segment_id =
+ av1_neg_deinterleave(coded_id, pred, seg->last_active_segid + 1);
+
+ if (segment_id < 0 || segment_id > seg->last_active_segid) {
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Corrupted segment_ids");
+ }
+ return segment_id;
+}
+
+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 segment_id = INT_MAX;
+
+ for (int y = 0; y < y_mis; y++)
+ for (int 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) {
+ assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
+
+ for (int y = 0; y < y_mis; y++)
+ for (int 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,
+ const MACROBLOCKD *const xd, int mi_row,
+ int mi_col, int bsize, aom_reader *r,
+ int skip) {
+ struct segmentation *const seg = &cm->seg;
+ if (!seg->enabled) return 0; // Default for disabled segmentation
+
+ assert(seg->update_map && !seg->temporal_update);
+
+ 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];
+ const int x_mis = AOMMIN(cm->mi_cols - mi_col, bw);
+ const int y_mis = AOMMIN(cm->mi_rows - mi_row, bh);
+ const int segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, skip);
+ 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) {
+ for (int y = 0; y < y_mis; y++)
+ for (int 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 get_predicted_segment_id(AV1_COMMON *const cm, int mi_offset,
+ int x_mis, int y_mis) {
+ return cm->last_frame_seg_map ? dec_get_segment_id(cm, cm->last_frame_seg_map,
+ mi_offset, x_mis, y_mis)
+ : 0;
+}
+
+static int read_inter_segment_id(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, int preskip,
+ aom_reader *r) {
+ struct segmentation *const seg = &cm->seg;
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ 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
+
+ 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 get_predicted_segment_id(cm, mi_offset, x_mis, y_mis);
+ }
+
+ int segment_id;
+ if (preskip) {
+ if (!seg->segid_preskip) return 0;
+ } else {
+ if (seg->segid_preskip) return mbmi->segment_id;
+ if (mbmi->skip) {
+ if (seg->temporal_update) {
+ mbmi->seg_id_predicted = 0;
+ }
+ segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 1);
+ set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
+ return segment_id;
+ }
+ }
+
+ if (seg->temporal_update) {
+ const int ctx = av1_get_pred_context_seg_id(xd);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ struct segmentation_probs *const segp = &ec_ctx->seg;
+ aom_cdf_prob *pred_cdf = segp->pred_cdf[ctx];
+ mbmi->seg_id_predicted = aom_read_symbol(r, pred_cdf, 2, ACCT_STR);
+ if (mbmi->seg_id_predicted) {
+ segment_id = get_predicted_segment_id(cm, mi_offset, x_mis, y_mis);
+ } else {
+ segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 0);
+ }
+ } else {
+ segment_id = read_segment_id(cm, xd, mi_row, mi_col, r, 0);
+ }
+ set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
+ return segment_id;
+}
+
+static int read_skip_mode(AV1_COMMON *cm, const MACROBLOCKD *xd, int segment_id,
+ aom_reader *r) {
+ if (!cm->skip_mode_flag) return 0;
+
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP)) {
+ return 0;
+ }
+
+ if (!is_comp_ref_allowed(xd->mi[0]->sb_type)) return 0;
+
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_REF_FRAME) ||
+ segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
+ // These features imply single-reference mode, while skip mode implies
+ // compound reference. Hence, the two are mutually exclusive.
+ // In other words, skip_mode is implicitly 0 here.
+ return 0;
+ }
+
+ const int ctx = av1_get_skip_mode_context(xd);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ const int skip_mode =
+ aom_read_symbol(r, ec_ctx->skip_mode_cdfs[ctx], 2, ACCT_STR);
+ return skip_mode;
+}
+
+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);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ const int skip = aom_read_symbol(r, ec_ctx->skip_cdfs[ctx], 2, ACCT_STR);
+ return skip;
+ }
+}
+
+// Merge the sorted list of cached colors(cached_colors[0...n_cached_colors-1])
+// and the sorted list of transmitted colors(colors[n_cached_colors...n-1]) into
+// one single sorted list(colors[...]).
+static void merge_colors(uint16_t *colors, uint16_t *cached_colors,
+ int n_colors, int n_cached_colors) {
+ if (n_cached_colors == 0) return;
+ int cache_idx = 0, trans_idx = n_cached_colors;
+ for (int i = 0; i < n_colors; ++i) {
+ if (cache_idx < n_cached_colors &&
+ (trans_idx >= n_colors ||
+ cached_colors[cache_idx] <= colors[trans_idx])) {
+ colors[i] = cached_colors[cache_idx++];
+ } else {
+ assert(trans_idx < n_colors);
+ colors[i] = colors[trans_idx++];
+ }
+ }
+}
+
+static void read_palette_colors_y(MACROBLOCKD *const xd, int bit_depth,
+ PALETTE_MODE_INFO *const pmi, aom_reader *r) {
+ uint16_t color_cache[2 * PALETTE_MAX_SIZE];
+ uint16_t cached_colors[PALETTE_MAX_SIZE];
+ const int n_cache = av1_get_palette_cache(xd, 0, color_cache);
+ const int n = pmi->palette_size[0];
+ int idx = 0;
+ for (int i = 0; i < n_cache && idx < n; ++i)
+ if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i];
+ if (idx < n) {
+ const int n_cached_colors = idx;
+ pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR);
+ if (idx < n) {
+ const int min_bits = bit_depth - 3;
+ int bits = min_bits + aom_read_literal(r, 2, ACCT_STR);
+ int range = (1 << bit_depth) - pmi->palette_colors[idx - 1] - 1;
+ for (; idx < n; ++idx) {
+ assert(range >= 0);
+ const int delta = aom_read_literal(r, bits, ACCT_STR) + 1;
+ pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta,
+ 0, (1 << bit_depth) - 1);
+ range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]);
+ bits = AOMMIN(bits, av1_ceil_log2(range));
+ }
+ }
+ merge_colors(pmi->palette_colors, cached_colors, n, n_cached_colors);
+ } else {
+ memcpy(pmi->palette_colors, cached_colors, n * sizeof(cached_colors[0]));
+ }
+}
+
+static void read_palette_colors_uv(MACROBLOCKD *const xd, int bit_depth,
+ PALETTE_MODE_INFO *const pmi,
+ aom_reader *r) {
+ const int n = pmi->palette_size[1];
+ // U channel colors.
+ uint16_t color_cache[2 * PALETTE_MAX_SIZE];
+ uint16_t cached_colors[PALETTE_MAX_SIZE];
+ const int n_cache = av1_get_palette_cache(xd, 1, color_cache);
+ int idx = 0;
+ for (int i = 0; i < n_cache && idx < n; ++i)
+ if (aom_read_bit(r, ACCT_STR)) cached_colors[idx++] = color_cache[i];
+ if (idx < n) {
+ const int n_cached_colors = idx;
+ idx += PALETTE_MAX_SIZE;
+ pmi->palette_colors[idx++] = aom_read_literal(r, bit_depth, ACCT_STR);
+ if (idx < PALETTE_MAX_SIZE + n) {
+ const int min_bits = bit_depth - 3;
+ int bits = min_bits + aom_read_literal(r, 2, ACCT_STR);
+ int range = (1 << bit_depth) - pmi->palette_colors[idx - 1];
+ for (; idx < PALETTE_MAX_SIZE + n; ++idx) {
+ assert(range >= 0);
+ const int delta = aom_read_literal(r, bits, ACCT_STR);
+ pmi->palette_colors[idx] = clamp(pmi->palette_colors[idx - 1] + delta,
+ 0, (1 << bit_depth) - 1);
+ range -= (pmi->palette_colors[idx] - pmi->palette_colors[idx - 1]);
+ bits = AOMMIN(bits, av1_ceil_log2(range));
+ }
+ }
+ merge_colors(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors, n,
+ n_cached_colors);
+ } else {
+ memcpy(pmi->palette_colors + PALETTE_MAX_SIZE, cached_colors,
+ n * sizeof(cached_colors[0]));
+ }
+
+ // V channel colors.
+ if (aom_read_bit(r, ACCT_STR)) { // Delta encoding.
+ const int min_bits_v = bit_depth - 4;
+ const int max_val = 1 << bit_depth;
+ int bits = min_bits_v + aom_read_literal(r, 2, ACCT_STR);
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE] =
+ aom_read_literal(r, bit_depth, ACCT_STR);
+ for (int 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 (int i = 0; i < n; ++i) {
+ pmi->palette_colors[2 * PALETTE_MAX_SIZE + i] =
+ aom_read_literal(r, bit_depth, ACCT_STR);
+ }
+ }
+}
+
+static void read_palette_mode_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r) {
+ const int num_planes = av1_num_planes(cm);
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ assert(av1_allow_palette(cm->allow_screen_content_tools, bsize));
+ PALETTE_MODE_INFO *const pmi = &mbmi->palette_mode_info;
+ const int bsize_ctx = av1_get_palette_bsize_ctx(bsize);
+
+ if (mbmi->mode == DC_PRED) {
+ const int palette_mode_ctx = av1_get_palette_mode_ctx(xd);
+ const int modev = aom_read_symbol(
+ r, xd->tile_ctx->palette_y_mode_cdf[bsize_ctx][palette_mode_ctx], 2,
+ ACCT_STR);
+ if (modev) {
+ pmi->palette_size[0] =
+ aom_read_symbol(r, xd->tile_ctx->palette_y_size_cdf[bsize_ctx],
+ PALETTE_SIZES, ACCT_STR) +
+ 2;
+ read_palette_colors_y(xd, cm->seq_params.bit_depth, pmi, r);
+ }
+ }
+ if (num_planes > 1 && mbmi->uv_mode == UV_DC_PRED &&
+ is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
+ xd->plane[1].subsampling_y)) {
+ const int palette_uv_mode_ctx = (pmi->palette_size[0] > 0);
+ const int modev = aom_read_symbol(
+ r, xd->tile_ctx->palette_uv_mode_cdf[palette_uv_mode_ctx], 2, ACCT_STR);
+ if (modev) {
+ pmi->palette_size[1] =
+ aom_read_symbol(r, xd->tile_ctx->palette_uv_size_cdf[bsize_ctx],
+ PALETTE_SIZES, ACCT_STR) +
+ 2;
+ read_palette_colors_uv(xd, cm->seq_params.bit_depth, pmi, r);
+ }
+ }
+}
+
+static int read_angle_delta(aom_reader *r, aom_cdf_prob *cdf) {
+ const int sym = aom_read_symbol(r, cdf, 2 * MAX_ANGLE_DELTA + 1, ACCT_STR);
+ return sym - MAX_ANGLE_DELTA;
+}
+
+static void read_filter_intra_mode_info(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, aom_reader *r) {
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ FILTER_INTRA_MODE_INFO *filter_intra_mode_info =
+ &mbmi->filter_intra_mode_info;
+
+ if (av1_filter_intra_allowed(cm, mbmi)) {
+ filter_intra_mode_info->use_filter_intra = aom_read_symbol(
+ r, xd->tile_ctx->filter_intra_cdfs[mbmi->sb_type], 2, ACCT_STR);
+ if (filter_intra_mode_info->use_filter_intra) {
+ filter_intra_mode_info->filter_intra_mode = aom_read_symbol(
+ r, xd->tile_ctx->filter_intra_mode_cdf, FILTER_INTRA_MODES, ACCT_STR);
+ }
+ } else {
+ filter_intra_mode_info->use_filter_intra = 0;
+ }
+}
+
+void av1_read_tx_type(const AV1_COMMON *const cm, MACROBLOCKD *xd, int blk_row,
+ int blk_col, TX_SIZE tx_size, aom_reader *r) {
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ const int txk_type_idx =
+ av1_get_txk_type_index(mbmi->sb_type, blk_row, blk_col);
+ TX_TYPE *tx_type = &mbmi->txk_type[txk_type_idx];
+ *tx_type = DCT_DCT;
+
+ // No need to read transform type if block is skipped.
+ if (mbmi->skip || segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP))
+ return;
+
+ // No need to read transform type for lossless mode(qindex==0).
+ const int qindex =
+ cm->seg.enabled ? xd->qindex[mbmi->segment_id] : cm->base_qindex;
+ if (qindex <= 0) return;
+
+ const int inter_block = is_inter_block(mbmi);
+ if (get_ext_tx_types(tx_size, inter_block, cm->reduced_tx_set_used) > 1) {
+ const TxSetType tx_set_type =
+ av1_get_ext_tx_set_type(tx_size, inter_block, cm->reduced_tx_set_used);
+ const int eset =
+ get_ext_tx_set(tx_size, inter_block, cm->reduced_tx_set_used);
+ // eset == 0 should correspond to a set with only DCT_DCT and
+ // there is no need to read the tx_type
+ assert(eset != 0);
+
+ const TX_SIZE square_tx_size = txsize_sqr_map[tx_size];
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ if (inter_block) {
+ *tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
+ r, ec_ctx->inter_ext_tx_cdf[eset][square_tx_size],
+ av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
+ } else {
+ const PREDICTION_MODE intra_mode =
+ mbmi->filter_intra_mode_info.use_filter_intra
+ ? fimode_to_intradir[mbmi->filter_intra_mode_info
+ .filter_intra_mode]
+ : mbmi->mode;
+ *tx_type = av1_ext_tx_inv[tx_set_type][aom_read_symbol(
+ r, ec_ctx->intra_ext_tx_cdf[eset][square_tx_size][intra_mode],
+ av1_num_ext_tx_set[tx_set_type], ACCT_STR)];
+ }
+ }
+}
+
+static INLINE void read_mv(aom_reader *r, MV *mv, const MV *ref,
+ nmv_context *ctx, MvSubpelPrecision precision);
+
+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) {
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ read_mv(r, &mv->as_mv, &ref_mv->as_mv, &ec_ctx->ndvc, MV_SUBPEL_NONE);
+ // DV should not have sub-pel.
+ assert((mv->as_mv.col & 7) == 0);
+ assert((mv->as_mv.row & 7) == 0);
+ mv->as_mv.col = (mv->as_mv.col >> 3) * 8;
+ mv->as_mv.row = (mv->as_mv.row >> 3) * 8;
+ int valid = is_mv_valid(&mv->as_mv) &&
+ av1_is_dv_valid(mv->as_mv, cm, xd, mi_row, mi_col, bsize,
+ cm->seq_params.mib_size_log2);
+ return valid;
+}
+
+static void read_intrabc_info(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ int mi_row, int mi_col, aom_reader *r) {
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ mbmi->use_intrabc = aom_read_symbol(r, ec_ctx->intrabc_cdf, 2, ACCT_STR);
+ if (mbmi->use_intrabc) {
+ BLOCK_SIZE bsize = mbmi->sb_type;
+ mbmi->mode = DC_PRED;
+ mbmi->uv_mode = UV_DC_PRED;
+ mbmi->interp_filters = av1_broadcast_interp_filter(BILINEAR);
+ mbmi->motion_mode = SIMPLE_TRANSLATION;
+
+ int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
+ int_mv ref_mvs[INTRA_FRAME + 1][MAX_MV_REF_CANDIDATES];
+ int_mv global_mvs[REF_FRAMES];
+
+ av1_find_mv_refs(cm, xd, mbmi, INTRA_FRAME, xd->ref_mv_count,
+ xd->ref_mv_stack, ref_mvs, global_mvs, mi_row, mi_col,
+ inter_mode_ctx);
+
+ int_mv nearestmv, nearmv;
+
+ av1_find_best_ref_mvs(0, ref_mvs[INTRA_FRAME], &nearestmv, &nearmv, 0);
+ int_mv dv_ref = nearestmv.as_int == 0 ? nearmv : nearestmv;
+ if (dv_ref.as_int == 0)
+ av1_find_ref_dv(&dv_ref, &xd->tile, cm->seq_params.mib_size, mi_row,
+ mi_col);
+ // Ref DV should not have sub-pel.
+ int valid_dv = (dv_ref.as_mv.col & 7) == 0 && (dv_ref.as_mv.row & 7) == 0;
+ dv_ref.as_mv.col = (dv_ref.as_mv.col >> 3) * 8;
+ dv_ref.as_mv.row = (dv_ref.as_mv.row >> 3) * 8;
+ valid_dv = valid_dv && assign_dv(cm, xd, &mbmi->mv[0], &dv_ref, mi_row,
+ mi_col, bsize, r);
+ if (!valid_dv) {
+ // Intra bc motion vectors are not valid - signal corrupt frame
+ aom_merge_corrupted_flag(&xd->corrupted, 1);
+ }
+ }
+}
+
+// If delta q is present, reads delta_q index.
+// Also reads delta_q loop filter levels, if present.
+static void read_delta_q_params(AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ const int mi_row, const int mi_col,
+ aom_reader *r) {
+ if (cm->delta_q_present_flag) {
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ xd->current_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);
+ FRAME_CONTEXT *const ec_ctx = xd->tile_ctx;
+ if (cm->delta_lf_present_flag) {
+ if (cm->delta_lf_multi) {
+ const int frame_lf_count =
+ av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2;
+ for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) {
+ const int tmp_lvl =
+ xd->delta_lf[lf_id] +
+ read_delta_lflevel(cm, r, ec_ctx->delta_lf_multi_cdf[lf_id], mbmi,
+ mi_col, mi_row) *
+ cm->delta_lf_res;
+ mbmi->delta_lf[lf_id] = xd->delta_lf[lf_id] =
+ clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER);
+ }
+ } else {
+ const int tmp_lvl = xd->delta_lf_from_base +
+ read_delta_lflevel(cm, r, ec_ctx->delta_lf_cdf,
+ mbmi, mi_col, mi_row) *
+ cm->delta_lf_res;
+ mbmi->delta_lf_from_base = xd->delta_lf_from_base =
+ clamp(tmp_lvl, -MAX_LOOP_FILTER, MAX_LOOP_FILTER);
+ }
+ }
+ }
+}
+
+static void read_intra_frame_mode_info(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r) {
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ const MB_MODE_INFO *above_mi = xd->above_mbmi;
+ const MB_MODE_INFO *left_mi = xd->left_mbmi;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ struct segmentation *const seg = &cm->seg;
+
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ if (seg->segid_preskip)
+ mbmi->segment_id =
+ read_intra_segment_id(cm, xd, mi_row, mi_col, bsize, r, 0);
+
+ mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
+
+ if (!seg->segid_preskip)
+ mbmi->segment_id =
+ read_intra_segment_id(cm, xd, mi_row, mi_col, bsize, r, mbmi->skip);
+
+ read_cdef(cm, r, xd, mi_col, mi_row);
+
+ read_delta_q_params(cm, xd, mi_row, mi_col, r);
+
+ mbmi->current_qindex = xd->current_qindex;
+
+ mbmi->ref_frame[0] = INTRA_FRAME;
+ mbmi->ref_frame[1] = NONE_FRAME;
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+ mbmi->filter_intra_mode_info.use_filter_intra = 0;
+
+ xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col;
+ xd->left_txfm_context =
+ xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
+
+ if (av1_allow_intrabc(cm)) {
+ read_intrabc_info(cm, xd, mi_row, mi_col, r);
+ if (is_intrabc_block(mbmi)) return;
+ }
+
+ mbmi->mode = read_intra_mode(r, get_y_mode_cdf(ec_ctx, above_mi, left_mi));
+
+ const int use_angle_delta = av1_use_angle_delta(bsize);
+ mbmi->angle_delta[PLANE_TYPE_Y] =
+ (use_angle_delta && av1_is_directional_mode(mbmi->mode))
+ ? read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED])
+ : 0;
+
+ if (!cm->seq_params.monochrome &&
+ is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
+ xd->plane[1].subsampling_y)) {
+ xd->cfl.is_chroma_reference = 1;
+ mbmi->uv_mode =
+ read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd), mbmi->mode);
+ if (mbmi->uv_mode == UV_CFL_PRED) {
+ mbmi->cfl_alpha_idx = read_cfl_alphas(ec_ctx, r, &mbmi->cfl_alpha_signs);
+ }
+ mbmi->angle_delta[PLANE_TYPE_UV] =
+ (use_angle_delta && av1_is_directional_mode(get_uv_mode(mbmi->uv_mode)))
+ ? read_angle_delta(r,
+ ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED])
+ : 0;
+ } else {
+ // Avoid decoding angle_info if there is is no chroma prediction
+ mbmi->uv_mode = UV_DC_PRED;
+ xd->cfl.is_chroma_reference = 0;
+ }
+ xd->cfl.store_y = store_cfl_required(cm, xd);
+
+ if (av1_allow_palette(cm->allow_screen_content_tools, bsize))
+ read_palette_mode_info(cm, xd, mi_row, mi_col, r);
+
+ read_filter_intra_mode_info(cm, xd, r);
+}
+
+static int read_mv_component(aom_reader *r, nmv_component *mvcomp,
+ int use_subpel, int usehp) {
+ int mag, d, fr, hp;
+ const int sign = aom_read_symbol(r, mvcomp->sign_cdf, 2, ACCT_STR);
+ const int mv_class =
+ aom_read_symbol(r, mvcomp->classes_cdf, MV_CLASSES, ACCT_STR);
+ const int class0 = mv_class == MV_CLASS_0;
+
+ // Integer part
+ if (class0) {
+ d = aom_read_symbol(r, mvcomp->class0_cdf, CLASS0_SIZE, ACCT_STR);
+ mag = 0;
+ } else {
+ const int n = mv_class + CLASS0_BITS - 1; // number of bits
+ d = 0;
+ for (int i = 0; i < n; ++i)
+ d |= aom_read_symbol(r, mvcomp->bits_cdf[i], 2, ACCT_STR) << i;
+ mag = CLASS0_SIZE << (mv_class + 2);
+ }
+
+ if (use_subpel) {
+ // Fractional part
+ fr = aom_read_symbol(r, class0 ? mvcomp->class0_fp_cdf[d] : mvcomp->fp_cdf,
+ MV_FP_SIZE, ACCT_STR);
+
+ // High precision part (if hp is not used, the default value of the hp is 1)
+ hp = usehp ? aom_read_symbol(
+ r, class0 ? mvcomp->class0_hp_cdf : mvcomp->hp_cdf, 2,
+ ACCT_STR)
+ : 1;
+ } else {
+ fr = 3;
+ hp = 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, MvSubpelPrecision precision) {
+ MV diff = kZeroMv;
+ const MV_JOINT_TYPE joint_type =
+ (MV_JOINT_TYPE)aom_read_symbol(r, ctx->joints_cdf, MV_JOINTS, ACCT_STR);
+
+ if (mv_joint_vertical(joint_type))
+ diff.row = read_mv_component(r, &ctx->comps[0], precision > MV_SUBPEL_NONE,
+ precision > MV_SUBPEL_LOW_PRECISION);
+
+ if (mv_joint_horizontal(joint_type))
+ diff.col = read_mv_component(r, &ctx->comps[1], precision > MV_SUBPEL_NONE,
+ precision > MV_SUBPEL_LOW_PRECISION);
+
+ 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 (!is_comp_ref_allowed(xd->mi[0]->sb_type)) return SINGLE_REFERENCE;
+ if (cm->reference_mode == REFERENCE_MODE_SELECT) {
+ const int ctx = av1_get_reference_mode_context(xd);
+ const REFERENCE_MODE mode = (REFERENCE_MODE)aom_read_symbol(
+ r, xd->tile_ctx->comp_inter_cdf[ctx], 2, ACCT_STR);
+ return mode; // SINGLE_REFERENCE or COMPOUND_REFERENCE
+ } else {
+ assert(cm->reference_mode == SINGLE_REFERENCE);
+ return cm->reference_mode;
+ }
+}
+
+#define READ_REF_BIT(pname) \
+ aom_read_symbol(r, av1_get_pred_cdf_##pname(xd), 2, ACCT_STR)
+
+static COMP_REFERENCE_TYPE read_comp_reference_type(const MACROBLOCKD *xd,
+ aom_reader *r) {
+ const int ctx = av1_get_comp_reference_type_context(xd);
+ const COMP_REFERENCE_TYPE comp_ref_type =
+ (COMP_REFERENCE_TYPE)aom_read_symbol(
+ r, xd->tile_ctx->comp_ref_type_cdf[ctx], 2, ACCT_STR);
+ return comp_ref_type; // UNIDIR_COMP_REFERENCE or BIDIR_COMP_REFERENCE
+}
+
+static void set_ref_frames_for_skip_mode(AV1_COMMON *const cm,
+ MV_REFERENCE_FRAME ref_frame[2]) {
+ ref_frame[0] = LAST_FRAME + cm->ref_frame_idx_0;
+ ref_frame[1] = LAST_FRAME + cm->ref_frame_idx_1;
+}
+
+// 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]) {
+ if (xd->mi[0]->skip_mode) {
+ set_ref_frames_for_skip_mode(cm, ref_frame);
+ return;
+ }
+
+ 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 if (segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP) ||
+ segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
+ ref_frame[0] = LAST_FRAME;
+ ref_frame[1] = NONE_FRAME;
+ } else {
+ const REFERENCE_MODE mode = read_block_reference_mode(cm, xd, r);
+
+ if (mode == COMPOUND_REFERENCE) {
+ const COMP_REFERENCE_TYPE comp_ref_type = read_comp_reference_type(xd, r);
+
+ if (comp_ref_type == UNIDIR_COMP_REFERENCE) {
+ const int bit = READ_REF_BIT(uni_comp_ref_p);
+ if (bit) {
+ ref_frame[0] = BWDREF_FRAME;
+ ref_frame[1] = ALTREF_FRAME;
+ } else {
+ const int bit1 = READ_REF_BIT(uni_comp_ref_p1);
+ if (bit1) {
+ const int bit2 = READ_REF_BIT(uni_comp_ref_p2);
+ if (bit2) {
+ ref_frame[0] = LAST_FRAME;
+ ref_frame[1] = GOLDEN_FRAME;
+ } else {
+ ref_frame[0] = LAST_FRAME;
+ ref_frame[1] = LAST3_FRAME;
+ }
+ } else {
+ ref_frame[0] = LAST_FRAME;
+ ref_frame[1] = LAST2_FRAME;
+ }
+ }
+
+ return;
+ }
+
+ assert(comp_ref_type == BIDIR_COMP_REFERENCE);
+
+ const int idx = 1;
+ const int bit = READ_REF_BIT(comp_ref_p);
+ // Decode forward references.
+ if (!bit) {
+ const int bit1 = READ_REF_BIT(comp_ref_p1);
+ ref_frame[!idx] = cm->comp_fwd_ref[bit1 ? 1 : 0];
+ } else {
+ const int bit2 = READ_REF_BIT(comp_ref_p2);
+ ref_frame[!idx] = cm->comp_fwd_ref[bit2 ? 3 : 2];
+ }
+
+ // Decode backward references.
+ const int bit_bwd = READ_REF_BIT(comp_bwdref_p);
+ if (!bit_bwd) {
+ const int bit1_bwd = READ_REF_BIT(comp_bwdref_p1);
+ ref_frame[idx] = cm->comp_bwd_ref[bit1_bwd];
+ } else {
+ ref_frame[idx] = cm->comp_bwd_ref[2];
+ }
+ } else if (mode == SINGLE_REFERENCE) {
+ const int bit0 = READ_REF_BIT(single_ref_p1);
+ if (bit0) {
+ const int bit1 = READ_REF_BIT(single_ref_p2);
+ if (!bit1) {
+ const int bit5 = READ_REF_BIT(single_ref_p6);
+ ref_frame[0] = bit5 ? ALTREF2_FRAME : BWDREF_FRAME;
+ } else {
+ ref_frame[0] = ALTREF_FRAME;
+ }
+ } else {
+ const int bit2 = READ_REF_BIT(single_ref_p3);
+ if (bit2) {
+ const int bit4 = READ_REF_BIT(single_ref_p5);
+ ref_frame[0] = bit4 ? GOLDEN_FRAME : LAST3_FRAME;
+ } else {
+ const int bit3 = READ_REF_BIT(single_ref_p4);
+ ref_frame[0] = bit3 ? LAST2_FRAME : LAST_FRAME;
+ }
+ }
+
+ 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_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ if (!av1_is_interp_needed(xd)) {
+ set_default_interp_filters(mbmi, cm->interp_filter);
+ return;
+ }
+
+ if (cm->interp_filter != SWITCHABLE) {
+ mbmi->interp_filters = av1_broadcast_interp_filter(cm->interp_filter);
+ } else {
+ InterpFilter ref0_filter[2] = { EIGHTTAP_REGULAR, EIGHTTAP_REGULAR };
+ for (int dir = 0; dir < 2; ++dir) {
+ const int ctx = av1_get_pred_context_switchable_interp(xd, dir);
+ ref0_filter[dir] = (InterpFilter)aom_read_symbol(
+ r, ec_ctx->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS, ACCT_STR);
+ if (cm->seq_params.enable_dual_filter == 0) {
+ ref0_filter[1] = ref0_filter[0];
+ break;
+ }
+ }
+ // The index system works as: (0, 1) -> (vertical, horizontal) filter types
+ mbmi->interp_filters =
+ av1_make_interp_filters(ref0_filter[0], ref0_filter[1]);
+ }
+}
+
+static void read_intra_block_mode_info(AV1_COMMON *const cm, const int mi_row,
+ const int mi_col, MACROBLOCKD *const xd,
+ MB_MODE_INFO *const mbmi,
+ aom_reader *r) {
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const int use_angle_delta = av1_use_angle_delta(bsize);
+
+ mbmi->ref_frame[0] = INTRA_FRAME;
+ mbmi->ref_frame[1] = NONE_FRAME;
+
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ mbmi->mode = read_intra_mode(r, ec_ctx->y_mode_cdf[size_group_lookup[bsize]]);
+
+ mbmi->angle_delta[PLANE_TYPE_Y] =
+ use_angle_delta && av1_is_directional_mode(mbmi->mode)
+ ? read_angle_delta(r, ec_ctx->angle_delta_cdf[mbmi->mode - V_PRED])
+ : 0;
+ const int has_chroma =
+ is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x,
+ xd->plane[1].subsampling_y);
+ xd->cfl.is_chroma_reference = has_chroma;
+ if (!cm->seq_params.monochrome && has_chroma) {
+ mbmi->uv_mode =
+ read_intra_mode_uv(ec_ctx, r, is_cfl_allowed(xd), mbmi->mode);
+ if (mbmi->uv_mode == UV_CFL_PRED) {
+ mbmi->cfl_alpha_idx =
+ read_cfl_alphas(xd->tile_ctx, r, &mbmi->cfl_alpha_signs);
+ }
+ mbmi->angle_delta[PLANE_TYPE_UV] =
+ use_angle_delta && av1_is_directional_mode(get_uv_mode(mbmi->uv_mode))
+ ? read_angle_delta(r,
+ ec_ctx->angle_delta_cdf[mbmi->uv_mode - V_PRED])
+ : 0;
+ } else {
+ // Avoid decoding angle_info if there is is no chroma prediction
+ mbmi->uv_mode = UV_DC_PRED;
+ }
+ xd->cfl.store_y = store_cfl_required(cm, xd);
+
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+ if (av1_allow_palette(cm->allow_screen_content_tools, bsize))
+ read_palette_mode_info(cm, xd, mi_row, mi_col, r);
+
+ read_filter_intra_mode_info(cm, xd, r);
+}
+
+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_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) {
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ MB_MODE_INFO *mbmi = xd->mi[0];
+ BLOCK_SIZE bsize = mbmi->sb_type;
+ if (cm->cur_frame_force_integer_mv) {
+ allow_hp = MV_SUBPEL_NONE;
+ }
+ switch (mode) {
+ case NEWMV: {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp);
+ break;
+ }
+ case NEARESTMV: {
+ mv[0].as_int = nearest_mv[0].as_int;
+ break;
+ }
+ case NEARMV: {
+ mv[0].as_int = near_mv[0].as_int;
+ break;
+ }
+ case GLOBALMV: {
+ mv[0].as_int =
+ gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
+ cm->allow_high_precision_mv, bsize, mi_col,
+ mi_row, cm->cur_frame_force_integer_mv)
+ .as_int;
+ break;
+ }
+ case NEW_NEWMV: {
+ assert(is_compound);
+ for (int i = 0; i < 2; ++i) {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ read_mv(r, &mv[i].as_mv, &ref_mv[i].as_mv, nmvc, allow_hp);
+ }
+ 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 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: {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp);
+ assert(is_compound);
+ mv[1].as_int = nearest_mv[1].as_int;
+ break;
+ }
+ case NEAREST_NEWMV: {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ mv[0].as_int = nearest_mv[0].as_int;
+ read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, allow_hp);
+ assert(is_compound);
+ break;
+ }
+ case NEAR_NEWMV: {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ mv[0].as_int = near_mv[0].as_int;
+ read_mv(r, &mv[1].as_mv, &ref_mv[1].as_mv, nmvc, allow_hp);
+ assert(is_compound);
+ break;
+ }
+ case NEW_NEARMV: {
+ nmv_context *const nmvc = &ec_ctx->nmvc;
+ read_mv(r, &mv[0].as_mv, &ref_mv[0].as_mv, nmvc, allow_hp);
+ assert(is_compound);
+ mv[1].as_int = near_mv[1].as_int;
+ break;
+ }
+ case GLOBAL_GLOBALMV: {
+ assert(is_compound);
+ mv[0].as_int =
+ gm_get_motion_vector(&cm->global_motion[ref_frame[0]],
+ cm->allow_high_precision_mv, bsize, mi_col,
+ mi_row, cm->cur_frame_force_integer_mv)
+ .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, cm->cur_frame_force_integer_mv)
+ .as_int;
+ break;
+ }
+ default: { return 0; }
+ }
+
+ int ret = is_mv_valid(&mv[0].as_mv);
+ if (is_compound) {
+ ret = ret && is_mv_valid(&mv[1].as_mv);
+ }
+ 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)) {
+ const int frame = get_segdata(&cm->seg, segment_id, SEG_LVL_REF_FRAME);
+ if (frame < LAST_FRAME) return 0;
+ return frame != INTRA_FRAME;
+ }
+ if (segfeature_active(&cm->seg, segment_id, SEG_LVL_GLOBALMV)) {
+ return 1;
+ }
+ const int ctx = av1_get_intra_inter_context(xd);
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+ const int is_inter =
+ aom_read_symbol(r, ec_ctx->intra_inter_cdf[ctx], 2, ACCT_STR);
+ return is_inter;
+}
+
+#if DEC_MISMATCH_DEBUG
+static void dec_dump_logs(AV1_COMMON *cm, MB_MODE_INFO *const mbmi, int mi_row,
+ int mi_col, int16_t mode_ctx) {
+ int_mv mv[2] = { { 0 } };
+ for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref)
+ mv[ref].as_mv = mbmi->mv[ref].as_mv;
+
+ const int16_t newmv_ctx = mode_ctx & NEWMV_CTX_MASK;
+ int16_t zeromv_ctx = -1;
+ int16_t refmv_ctx = -1;
+ if (mbmi->mode != NEWMV) {
+ zeromv_ctx = (mode_ctx >> GLOBALMV_OFFSET) & GLOBALMV_CTX_MASK;
+ if (mbmi->mode != GLOBALMV)
+ refmv_ctx = (mode_ctx >> REFMV_OFFSET) & REFMV_CTX_MASK;
+ }
+
+#define FRAME_TO_CHECK 11
+ if (cm->current_video_frame == FRAME_TO_CHECK && cm->show_frame == 1) {
+ printf(
+ "=== DECODER ===: "
+ "Frame=%d, (mi_row,mi_col)=(%d,%d), skip_mode=%d, mode=%d, bsize=%d, "
+ "show_frame=%d, mv[0]=(%d,%d), mv[1]=(%d,%d), ref[0]=%d, "
+ "ref[1]=%d, motion_mode=%d, mode_ctx=%d, "
+ "newmv_ctx=%d, zeromv_ctx=%d, refmv_ctx=%d, tx_size=%d\n",
+ cm->current_video_frame, mi_row, mi_col, mbmi->skip_mode, mbmi->mode,
+ mbmi->sb_type, cm->show_frame, mv[0].as_mv.row, mv[0].as_mv.col,
+ mv[1].as_mv.row, mv[1].as_mv.col, mbmi->ref_frame[0],
+ mbmi->ref_frame[1], mbmi->motion_mode, mode_ctx, newmv_ctx, zeromv_ctx,
+ refmv_ctx, mbmi->tx_size);
+ }
+}
+#endif // DEC_MISMATCH_DEBUG
+
+static void read_inter_block_mode_info(AV1Decoder *const pbi,
+ MACROBLOCKD *const xd,
+ MB_MODE_INFO *const mbmi, int mi_row,
+ int mi_col, aom_reader *r) {
+ AV1_COMMON *const cm = &pbi->common;
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const int allow_hp = cm->allow_high_precision_mv;
+ int_mv nearestmv[2], nearmv[2];
+ int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES] = { { { 0 } } };
+ int16_t inter_mode_ctx[MODE_CTX_REF_FRAMES];
+ int pts[SAMPLES_ARRAY_SIZE], pts_inref[SAMPLES_ARRAY_SIZE];
+ FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+
+ mbmi->uv_mode = UV_DC_PRED;
+ mbmi->palette_mode_info.palette_size[0] = 0;
+ mbmi->palette_mode_info.palette_size[1] = 0;
+
+ av1_collect_neighbors_ref_counts(xd);
+
+ read_ref_frames(cm, xd, r, mbmi->segment_id, mbmi->ref_frame);
+ const int is_compound = has_second_ref(mbmi);
+
+ MV_REFERENCE_FRAME ref_frame = av1_ref_frame_type(mbmi->ref_frame);
+ int_mv global_mvs[REF_FRAMES];
+ av1_find_mv_refs(cm, xd, mbmi, ref_frame, xd->ref_mv_count, xd->ref_mv_stack,
+ ref_mvs, global_mvs, mi_row, mi_col, inter_mode_ctx);
+
+ int mode_ctx = av1_mode_context_analyzer(inter_mode_ctx, mbmi->ref_frame);
+ mbmi->ref_mv_idx = 0;
+
+ if (mbmi->skip_mode) {
+ assert(is_compound);
+ mbmi->mode = NEAREST_NEARESTMV;
+ } else {
+ if (segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) ||
+ segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_GLOBALMV)) {
+ mbmi->mode = GLOBALMV;
+ } else {
+ if (is_compound)
+ mbmi->mode = read_inter_compound_mode(xd, r, mode_ctx);
+ else
+ mbmi->mode = read_inter_mode(ec_ctx, r, mode_ctx);
+ if (mbmi->mode == NEWMV || mbmi->mode == NEW_NEWMV ||
+ have_nearmv_in_inter_mode(mbmi->mode))
+ read_drl_idx(ec_ctx, xd, mbmi, r);
+ }
+ }
+
+ if (is_compound != is_inter_compound_mode(mbmi->mode)) {
+ aom_internal_error(xd->error_info, AOM_CODEC_CORRUPT_FRAME,
+ "Prediction mode %d invalid with ref frame %d %d",
+ mbmi->mode, mbmi->ref_frame[0], mbmi->ref_frame[1]);
+ }
+
+ if (!is_compound && mbmi->mode != GLOBALMV) {
+ av1_find_best_ref_mvs(allow_hp, ref_mvs[mbmi->ref_frame[0]], &nearestmv[0],
+ &nearmv[0], cm->cur_frame_force_integer_mv);
+ }
+
+ if (is_compound && mbmi->mode != GLOBAL_GLOBALMV) {
+ int ref_mv_idx = mbmi->ref_mv_idx + 1;
+ nearestmv[0] = xd->ref_mv_stack[ref_frame][0].this_mv;
+ nearestmv[1] = xd->ref_mv_stack[ref_frame][0].comp_mv;
+ nearmv[0] = xd->ref_mv_stack[ref_frame][ref_mv_idx].this_mv;
+ nearmv[1] = xd->ref_mv_stack[ref_frame][ref_mv_idx].comp_mv;
+ lower_mv_precision(&nearestmv[0].as_mv, allow_hp,
+ cm->cur_frame_force_integer_mv);
+ lower_mv_precision(&nearestmv[1].as_mv, allow_hp,
+ cm->cur_frame_force_integer_mv);
+ lower_mv_precision(&nearmv[0].as_mv, allow_hp,
+ cm->cur_frame_force_integer_mv);
+ lower_mv_precision(&nearmv[1].as_mv, allow_hp,
+ cm->cur_frame_force_integer_mv);
+ } else if (mbmi->ref_mv_idx > 0 && mbmi->mode == NEARMV) {
+ int_mv cur_mv =
+ xd->ref_mv_stack[mbmi->ref_frame[0]][1 + mbmi->ref_mv_idx].this_mv;
+ nearmv[0] = cur_mv;
+ }
+
+ int_mv ref_mv[2];
+ ref_mv[0] = nearestmv[0];
+ ref_mv[1] = nearestmv[1];
+
+ if (is_compound) {
+ 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;
+
+ // TODO(jingning, yunqing): Do we need a lower_mv_precision() call here?
+ if (compound_ref0_mode(mbmi->mode) == NEWMV)
+ ref_mv[0] = xd->ref_mv_stack[ref_frame][ref_mv_idx].this_mv;
+
+ if (compound_ref1_mode(mbmi->mode) == NEWMV)
+ ref_mv[1] = xd->ref_mv_stack[ref_frame][ref_mv_idx].comp_mv;
+ } else {
+ if (mbmi->mode == NEWMV) {
+ if (xd->ref_mv_count[ref_frame] > 1)
+ ref_mv[0] = xd->ref_mv_stack[ref_frame][mbmi->ref_mv_idx].this_mv;
+ }
+ }
+
+ if (mbmi->skip_mode) {
+ assert(mbmi->mode == NEAREST_NEARESTMV);
+ mbmi->mv[0].as_int = nearestmv[0].as_int;
+ mbmi->mv[1].as_int = nearestmv[1].as_int;
+ } else {
+ int mv_corrupted_flag =
+ !assign_mv(cm, xd, mbmi->mode, mbmi->ref_frame, mbmi->mv, ref_mv,
+ nearestmv, nearmv, mi_row, mi_col, is_compound, allow_hp, r);
+ aom_merge_corrupted_flag(&xd->corrupted, mv_corrupted_flag);
+ }
+
+ mbmi->use_wedge_interintra = 0;
+ if (cm->seq_params.enable_interintra_compound && !mbmi->skip_mode &&
+ is_interintra_allowed(mbmi)) {
+ const int bsize_group = size_group_lookup[bsize];
+ const int interintra =
+ aom_read_symbol(r, ec_ctx->interintra_cdf[bsize_group], 2, ACCT_STR);
+ assert(mbmi->ref_frame[1] == NONE_FRAME);
+ if (interintra) {
+ const INTERINTRA_MODE interintra_mode =
+ read_interintra_mode(xd, r, bsize_group);
+ mbmi->ref_frame[1] = INTRA_FRAME;
+ mbmi->interintra_mode = interintra_mode;
+ mbmi->angle_delta[PLANE_TYPE_Y] = 0;
+ mbmi->angle_delta[PLANE_TYPE_UV] = 0;
+ mbmi->filter_intra_mode_info.use_filter_intra = 0;
+ if (is_interintra_wedge_used(bsize)) {
+ mbmi->use_wedge_interintra = aom_read_symbol(
+ r, ec_ctx->wedge_interintra_cdf[bsize], 2, ACCT_STR);
+ if (mbmi->use_wedge_interintra) {
+ mbmi->interintra_wedge_index =
+ aom_read_symbol(r, ec_ctx->wedge_idx_cdf[bsize], 16, ACCT_STR);
+ mbmi->interintra_wedge_sign = 0;
+ }
+ }
+ }
+ }
+
+ for (int ref = 0; ref < 1 + has_second_ref(mbmi); ++ref) {
+ const MV_REFERENCE_FRAME frame = mbmi->ref_frame[ref];
+ RefBuffer *ref_buf = &cm->frame_refs[frame - LAST_FRAME];
+
+ xd->block_refs[ref] = ref_buf;
+ }
+
+ mbmi->motion_mode = SIMPLE_TRANSLATION;
+ if (is_motion_variation_allowed_bsize(mbmi->sb_type) && !mbmi->skip_mode &&
+ !has_second_ref(mbmi))
+ mbmi->num_proj_ref = findSamples(cm, xd, mi_row, mi_col, pts, pts_inref);
+ av1_count_overlappable_neighbors(cm, xd, mi_row, mi_col);
+
+ if (mbmi->ref_frame[1] != INTRA_FRAME)
+ mbmi->motion_mode = read_motion_mode(cm, xd, mbmi, r);
+
+ // init
+ mbmi->comp_group_idx = 0;
+ mbmi->compound_idx = 1;
+ mbmi->interinter_comp.type = COMPOUND_AVERAGE;
+
+ if (has_second_ref(mbmi) && !mbmi->skip_mode) {
+ // Read idx to indicate current compound inter prediction mode group
+ const int masked_compound_used = is_any_masked_compound_used(bsize) &&
+ cm->seq_params.enable_masked_compound;
+
+ if (masked_compound_used) {
+ const int ctx_comp_group_idx = get_comp_group_idx_context(xd);
+ mbmi->comp_group_idx = aom_read_symbol(
+ r, ec_ctx->comp_group_idx_cdf[ctx_comp_group_idx], 2, ACCT_STR);
+ }
+
+ if (mbmi->comp_group_idx == 0) {
+ if (cm->seq_params.enable_jnt_comp) {
+ const int comp_index_ctx = get_comp_index_context(cm, xd);
+ mbmi->compound_idx = aom_read_symbol(
+ r, ec_ctx->compound_index_cdf[comp_index_ctx], 2, ACCT_STR);
+ } else {
+ // Distance-weighted compound is disabled, so always use average
+ mbmi->compound_idx = 1;
+ }
+ } else {
+ assert(cm->reference_mode != SINGLE_REFERENCE &&
+ is_inter_compound_mode(mbmi->mode) &&
+ mbmi->motion_mode == SIMPLE_TRANSLATION);
+ assert(masked_compound_used);
+
+ // compound_diffwtd, wedge
+ if (is_interinter_compound_used(COMPOUND_WEDGE, bsize))
+ mbmi->interinter_comp.type =
+ 1 + aom_read_symbol(r, ec_ctx->compound_type_cdf[bsize],
+ COMPOUND_TYPES - 1, ACCT_STR);
+ else
+ mbmi->interinter_comp.type = COMPOUND_DIFFWTD;
+
+ if (mbmi->interinter_comp.type == COMPOUND_WEDGE) {
+ assert(is_interinter_compound_used(COMPOUND_WEDGE, bsize));
+ mbmi->interinter_comp.wedge_index =
+ aom_read_symbol(r, ec_ctx->wedge_idx_cdf[bsize], 16, ACCT_STR);
+ mbmi->interinter_comp.wedge_sign = aom_read_bit(r, ACCT_STR);
+ } else {
+ assert(mbmi->interinter_comp.type == COMPOUND_DIFFWTD);
+ mbmi->interinter_comp.mask_type =
+ aom_read_literal(r, MAX_DIFFWTD_MASK_BITS, ACCT_STR);
+ }
+ }
+ }
+
+ read_mb_interp_filter(cm, xd, mbmi, r);
+
+ if (mbmi->motion_mode == WARPED_CAUSAL) {
+ mbmi->wm_params.wmtype = DEFAULT_WMTYPE;
+ mbmi->wm_params.invalid = 0;
+
+ if (mbmi->num_proj_ref > 1)
+ mbmi->num_proj_ref = selectSamples(&mbmi->mv[0].as_mv, pts, pts_inref,
+ mbmi->num_proj_ref, bsize);
+
+ if (find_projection(mbmi->num_proj_ref, pts, pts_inref, bsize,
+ mbmi->mv[0].as_mv.row, mbmi->mv[0].as_mv.col,
+ &mbmi->wm_params, mi_row, mi_col)) {
+#if WARPED_MOTION_DEBUG
+ printf("Warning: unexpected warped model from aomenc\n");
+#endif
+ mbmi->wm_params.invalid = 1;
+ }
+ }
+
+ xd->cfl.is_chroma_reference =
+ is_chroma_reference(mi_row, mi_col, bsize, cm->seq_params.subsampling_x,
+ cm->seq_params.subsampling_y);
+ xd->cfl.store_y = store_cfl_required(cm, xd);
+
+#if DEC_MISMATCH_DEBUG
+ dec_dump_logs(cm, mi, mi_row, mi_col, mode_ctx);
+#endif // DEC_MISMATCH_DEBUG
+}
+
+static void read_inter_frame_mode_info(AV1Decoder *const pbi,
+ MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r) {
+ AV1_COMMON *const cm = &pbi->common;
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ int inter_block = 1;
+
+ 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, 1, r);
+
+ mbmi->skip_mode = read_skip_mode(cm, xd, mbmi->segment_id, r);
+
+ if (mbmi->skip_mode)
+ mbmi->skip = 1;
+ else
+ mbmi->skip = read_skip(cm, xd, mbmi->segment_id, r);
+
+ mbmi->segment_id = read_inter_segment_id(cm, xd, mi_row, mi_col, 0, r);
+
+ read_cdef(cm, r, xd, mi_col, mi_row);
+
+ read_delta_q_params(cm, xd, mi_row, mi_col, r);
+
+ if (!mbmi->skip_mode)
+ inter_block = read_is_inter_block(cm, xd, mbmi->segment_id, r);
+
+ mbmi->current_qindex = xd->current_qindex;
+
+ xd->above_txfm_context = cm->above_txfm_context[xd->tile.tile_row] + mi_col;
+ xd->left_txfm_context =
+ xd->left_txfm_context_buffer + (mi_row & MAX_MIB_MASK);
+
+ if (inter_block)
+ read_inter_block_mode_info(pbi, xd, mbmi, mi_row, mi_col, r);
+ else
+ read_intra_block_mode_info(cm, mi_row, mi_col, xd, mbmi, r);
+}
+
+static void intra_copy_frame_mvs(AV1_COMMON *const cm, int mi_row, int mi_col,
+ int x_mis, int y_mis) {
+ const int frame_mvs_stride = ROUND_POWER_OF_TWO(cm->mi_cols, 1);
+ MV_REF *frame_mvs =
+ cm->cur_frame->mvs + (mi_row >> 1) * frame_mvs_stride + (mi_col >> 1);
+ x_mis = ROUND_POWER_OF_TWO(x_mis, 1);
+ y_mis = ROUND_POWER_OF_TWO(y_mis, 1);
+
+ for (int h = 0; h < y_mis; h++) {
+ MV_REF *mv = frame_mvs;
+ for (int w = 0; w < x_mis; w++) {
+ mv->ref_frame = NONE_FRAME;
+ mv++;
+ }
+ frame_mvs += frame_mvs_stride;
+ }
+}
+
+void av1_read_mode_info(AV1Decoder *const pbi, MACROBLOCKD *xd, int mi_row,
+ int mi_col, aom_reader *r, int x_mis, int y_mis) {
+ AV1_COMMON *const cm = &pbi->common;
+ MB_MODE_INFO *const mi = xd->mi[0];
+ mi->use_intrabc = 0;
+
+ if (frame_is_intra_only(cm)) {
+ read_intra_frame_mode_info(cm, xd, mi_row, mi_col, r);
+ intra_copy_frame_mvs(cm, mi_row, mi_col, x_mis, y_mis);
+ } else {
+ read_inter_frame_mode_info(pbi, xd, mi_row, mi_col, r);
+ av1_copy_frame_mvs(cm, mi, mi_row, mi_col, x_mis, y_mis);
+ }
+}
diff --git a/third_party/aom/av1/decoder/decodemv.h b/third_party/aom/av1/decoder/decodemv.h
new file mode 100644
index 000000000..1625e5bd2
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodemv.h
@@ -0,0 +1,35 @@
+/*
+ * 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_AV1_DECODER_DECODEMV_H_
+#define AOM_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,
+
+ 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, int blk_row,
+ int blk_col, TX_SIZE tx_size, aom_reader *r);
+
+#endif // AOM_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..a5f4fd67f
--- /dev/null
+++ b/third_party/aom/av1/decoder/decoder.c
@@ -0,0 +1,575 @@
+/*
+ * 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 "config/av1_rtcd.h"
+#include "config/aom_dsp_rtcd.h"
+#include "config/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"
+#include "av1/decoder/detokenize.h"
+#include "av1/decoder/obu.h"
+
+static void initialize_dec(void) {
+ av1_rtcd();
+ aom_dsp_rtcd();
+ aom_scale_rtcd();
+ av1_init_intra_predictors();
+ av1_init_wedge_masks();
+}
+
+static void dec_setup_mi(AV1_COMMON *cm) {
+ cm->mi = cm->mip;
+ cm->mi_grid_visible = cm->mi_grid_base;
+ memset(cm->mi_grid_base, 0,
+ cm->mi_stride * cm->mi_rows * 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 =
+ (MB_MODE_INFO **)aom_calloc(mi_size, sizeof(MB_MODE_INFO *));
+ if (!cm->mi_grid_base) return 1;
+ return 0;
+}
+
+static void dec_free_mi(AV1_COMMON *cm) {
+ aom_free(cm->mip);
+ cm->mip = NULL;
+ aom_free(cm->mi_grid_base);
+ cm->mi_grid_base = NULL;
+ cm->mi_alloc_size = 0;
+}
+
+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);
+
+ // The jmp_buf is valid only for the duration of the function that calls
+ // setjmp(). Therefore, this function must reset the 'setjmp' field to 0
+ // before it returns.
+ 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;
+ aom_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->decoding_first_frame = 1;
+ pbi->common.buffer_pool = pool;
+
+ cm->seq_params.bit_depth = AOM_BITS_8;
+ cm->dequant_bit_depth = AOM_BITS_8;
+
+ cm->alloc_mi = av1_dec_alloc_mi;
+ cm->free_mi = dec_free_mi;
+ cm->setup_mi = dec_setup_mi;
+
+ av1_loop_filter_init(cm);
+
+ av1_qm_init(cm);
+ av1_loop_restoration_precal();
+#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_dealloc_dec_jobs(struct AV1DecTileMTData *tile_mt_info) {
+ if (tile_mt_info != NULL) {
+#if CONFIG_MULTITHREAD
+ if (tile_mt_info->job_mutex != NULL) {
+ pthread_mutex_destroy(tile_mt_info->job_mutex);
+ aom_free(tile_mt_info->job_mutex);
+ }
+#endif
+ aom_free(tile_mt_info->job_queue);
+ // clear the structure as the source of this call may be a resize in which
+ // case this call will be followed by an _alloc() which may fail.
+ av1_zero(*tile_mt_info);
+ }
+}
+
+void av1_dec_free_cb_buf(AV1Decoder *pbi) {
+ aom_free(pbi->cb_buffer_base);
+ pbi->cb_buffer_base = NULL;
+ pbi->cb_buffer_alloc_size = 0;
+}
+
+void av1_decoder_remove(AV1Decoder *pbi) {
+ int i;
+
+ if (!pbi) return;
+
+ // Free the tile list output buffer.
+ if (pbi->tile_list_output != NULL) aom_free(pbi->tile_list_output);
+ pbi->tile_list_output = NULL;
+
+ aom_get_worker_interface()->end(&pbi->lf_worker);
+ aom_free(pbi->lf_worker.data1);
+
+ if (pbi->thread_data) {
+ for (int worker_idx = 0; worker_idx < pbi->max_threads - 1; worker_idx++) {
+ DecWorkerData *const thread_data = pbi->thread_data + worker_idx;
+ av1_free_mc_tmp_buf(thread_data->td);
+ aom_free(thread_data->td);
+ }
+ aom_free(pbi->thread_data);
+ }
+
+ for (i = 0; i < pbi->num_workers; ++i) {
+ AVxWorker *const worker = &pbi->tile_workers[i];
+ aom_get_worker_interface()->end(worker);
+ }
+#if CONFIG_MULTITHREAD
+ if (pbi->row_mt_mutex_ != NULL) {
+ pthread_mutex_destroy(pbi->row_mt_mutex_);
+ aom_free(pbi->row_mt_mutex_);
+ }
+ if (pbi->row_mt_cond_ != NULL) {
+ pthread_cond_destroy(pbi->row_mt_cond_);
+ aom_free(pbi->row_mt_cond_);
+ }
+#endif
+ for (i = 0; i < pbi->allocated_tiles; i++) {
+ TileDataDec *const tile_data = pbi->tile_data + i;
+ av1_dec_row_mt_dealloc(&tile_data->dec_row_mt_sync);
+ }
+ aom_free(pbi->tile_data);
+ aom_free(pbi->tile_workers);
+
+ if (pbi->num_workers > 0) {
+ av1_loop_filter_dealloc(&pbi->lf_row_sync);
+ av1_loop_restoration_dealloc(&pbi->lr_row_sync, pbi->num_workers);
+ av1_dealloc_dec_jobs(&pbi->tile_mt_info);
+ }
+
+ av1_dec_free_cb_buf(pbi);
+#if CONFIG_ACCOUNTING
+ aom_accounting_clear(&pbi->accounting);
+#endif
+ av1_free_mc_tmp_buf(&pbi->td);
+
+ aom_free(pbi);
+}
+
+void av1_visit_palette(AV1Decoder *const pbi, MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r, BLOCK_SIZE bsize,
+ palette_visitor_fn_t visit) {
+ if (!is_inter_block(xd->mi[0])) {
+ for (int plane = 0; plane < AOMMIN(2, av1_num_planes(&pbi->common));
+ ++plane) {
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ if (is_chroma_reference(mi_row, mi_col, bsize, pd->subsampling_x,
+ pd->subsampling_y)) {
+ if (xd->mi[0]->palette_mode_info.palette_size[plane])
+ visit(xd, plane, r);
+ } else {
+ assert(xd->mi[0]->palette_mode_info.palette_size[plane] == 0);
+ }
+ }
+ }
+}
+
+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, int idx,
+ YV12_BUFFER_CONFIG *sd) {
+ AV1_COMMON *cm = &pbi->common;
+ const int num_planes = av1_num_planes(cm);
+
+ const YV12_BUFFER_CONFIG *const cfg = get_ref_frame(cm, idx);
+ if (cfg == NULL) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR, "No 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, num_planes);
+
+ return cm->error.error_code;
+}
+
+static int equal_dimensions_and_border(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 &&
+ a->y_stride == b->y_stride && a->uv_stride == b->uv_stride &&
+ a->border == b->border &&
+ (a->flags & YV12_FLAG_HIGHBITDEPTH) ==
+ (b->flags & YV12_FLAG_HIGHBITDEPTH);
+}
+
+aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm, int idx,
+ int use_external_ref,
+ YV12_BUFFER_CONFIG *sd) {
+ const int num_planes = av1_num_planes(cm);
+ YV12_BUFFER_CONFIG *ref_buf = NULL;
+
+ // Get the destination reference buffer.
+ ref_buf = get_ref_frame(cm, idx);
+
+ if (ref_buf == NULL) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR, "No reference frame");
+ return AOM_CODEC_ERROR;
+ }
+
+ if (!use_external_ref) {
+ 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, num_planes);
+ }
+ } else {
+ if (!equal_dimensions_and_border(ref_buf, sd)) {
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Incorrect buffer dimensions");
+ } else {
+ // Overwrite the reference frame buffer pointers.
+ // Once we no longer need the external reference buffer, these pointers
+ // are restored.
+ ref_buf->store_buf_adr[0] = ref_buf->y_buffer;
+ ref_buf->store_buf_adr[1] = ref_buf->u_buffer;
+ ref_buf->store_buf_adr[2] = ref_buf->v_buffer;
+ ref_buf->y_buffer = sd->y_buffer;
+ ref_buf->u_buffer = sd->u_buffer;
+ ref_buf->v_buffer = sd->v_buffer;
+ ref_buf->use_external_reference_buffers = 1;
+ }
+ }
+
+ return cm->error.error_code;
+}
+
+aom_codec_err_t av1_copy_new_frame_dec(AV1_COMMON *cm,
+ YV12_BUFFER_CONFIG *new_frame,
+ YV12_BUFFER_CONFIG *sd) {
+ const int num_planes = av1_num_planes(cm);
+
+ if (!equal_dimensions_and_border(new_frame, sd))
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Incorrect buffer dimensions");
+ else
+ aom_yv12_copy_frame(new_frame, sd, num_planes);
+
+ return cm->error.error_code;
+}
+
+/* If any buffer updating is signaled it should be done here.
+ Consumes a reference to cm->new_fb_idx.
+*/
+static void swap_frame_buffers(AV1Decoder *pbi, int frame_decoded) {
+ 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;
+
+ if (frame_decoded) {
+ lock_buffer_pool(pool);
+
+ // In ext-tile decoding, the camera frame header is only decoded once. So,
+ // we don't release the references here.
+ if (!pbi->camera_frame_header_ready) {
+ 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.
+ const int check_on_show_existing_frame =
+ !cm->show_existing_frame || cm->reset_decoder_state;
+ for (; ref_index < REF_FRAMES && check_on_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];
+ }
+ }
+
+ YV12_BUFFER_CONFIG *cur_frame = get_frame_new_buffer(cm);
+
+ if (cm->show_existing_frame || cm->show_frame) {
+ if (pbi->output_all_layers) {
+ // Append this frame to the output queue
+ if (pbi->num_output_frames >= MAX_NUM_SPATIAL_LAYERS) {
+ // We can't store the new frame anywhere, so drop it and return an
+ // error
+ decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ } else {
+ pbi->output_frames[pbi->num_output_frames] = cur_frame;
+ pbi->output_frame_index[pbi->num_output_frames] = cm->new_fb_idx;
+ pbi->num_output_frames++;
+ }
+ } else {
+ // Replace any existing output frame
+ assert(pbi->num_output_frames == 0 || pbi->num_output_frames == 1);
+ if (pbi->num_output_frames > 0) {
+ decrease_ref_count((int)pbi->output_frame_index[0], frame_bufs, pool);
+ }
+ pbi->output_frames[0] = cur_frame;
+ pbi->output_frame_index[0] = cm->new_fb_idx;
+ pbi->num_output_frames = 1;
+ }
+ } else {
+ decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
+ }
+
+ unlock_buffer_pool(pool);
+ } else {
+ // Nothing was decoded, so just drop this frame buffer
+ lock_buffer_pool(pool);
+ decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
+ unlock_buffer_pool(pool);
+ }
+
+ if (!pbi->camera_frame_header_ready) {
+ pbi->hold_ref_buf = 0;
+
+ // 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;
+ 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;
+ }
+ }
+
+ // Find a free buffer for the new frame, releasing the reference previously
+ // held.
+
+ // 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) {
+ cm->error.error_code = AOM_CODEC_MEM_ERROR;
+ return 1;
+ }
+
+ // Assign a MV array to the frame buffer.
+ cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];
+
+ if (!pbi->camera_frame_header_ready) pbi->hold_ref_buf = 0;
+
+ pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
+
+ // The jmp_buf is valid only for the duration of the function that calls
+ // setjmp(). Therefore, this function must reset the 'setjmp' field to 0
+ // before it returns.
+ if (setjmp(cm->error.jmp)) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ int i;
+
+ cm->error.setjmp = 0;
+
+ // 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_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.
+ const int check_on_show_existing_frame =
+ !cm->show_existing_frame || cm->reset_decoder_state;
+ for (; ref_index < REF_FRAMES && check_on_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;
+
+ int frame_decoded =
+ aom_decode_frame_from_obus(pbi, source, source + size, psource);
+
+ if (cm->error.error_code != AOM_CODEC_OK) {
+ lock_buffer_pool(pool);
+ decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
+ unlock_buffer_pool(pool);
+ cm->error.setjmp = 0;
+ return 1;
+ }
+
+#if TXCOEFF_TIMER
+ cm->cum_txcoeff_timer += cm->txcoeff_timer;
+ fprintf(stderr,
+ "txb coeff block number: %d, frame time: %ld, cum time %ld in us\n",
+ cm->txb_count, cm->txcoeff_timer, cm->cum_txcoeff_timer);
+ cm->txcoeff_timer = 0;
+ cm->txb_count = 0;
+#endif
+
+ // Note: At this point, this function holds a reference to cm->new_fb_idx
+ // in the buffer pool. This reference is consumed by swap_frame_buffers().
+ swap_frame_buffers(pbi, frame_decoded);
+
+ if (frame_decoded) {
+ pbi->decoding_first_frame = 0;
+ }
+
+ if (cm->error.error_code != AOM_CODEC_OK) {
+ cm->error.setjmp = 0;
+ return 1;
+ }
+
+ aom_clear_system_state();
+
+ if (!cm->show_existing_frame) {
+ cm->last_show_frame = cm->show_frame;
+
+ if (cm->seg.enabled) {
+ if (cm->prev_frame && (cm->mi_rows == cm->prev_frame->mi_rows) &&
+ (cm->mi_cols == cm->prev_frame->mi_cols)) {
+ cm->last_frame_seg_map = cm->prev_frame->seg_map;
+ } else {
+ cm->last_frame_seg_map = NULL;
+ }
+ }
+ }
+
+ // Update progress in frame parallel decode.
+ cm->last_width = cm->width;
+ cm->last_height = cm->height;
+ cm->last_tile_cols = cm->tile_cols;
+ cm->last_tile_rows = cm->tile_rows;
+ cm->error.setjmp = 0;
+
+ return 0;
+}
+
+// Get the frame at a particular index in the output queue
+int av1_get_raw_frame(AV1Decoder *pbi, size_t index, YV12_BUFFER_CONFIG **sd,
+ aom_film_grain_t **grain_params) {
+ RefCntBuffer *const frame_bufs = pbi->common.buffer_pool->frame_bufs;
+
+ if (index >= pbi->num_output_frames) return -1;
+ *sd = pbi->output_frames[index];
+ *grain_params = &frame_bufs[pbi->output_frame_index[index]].film_grain_params;
+ aom_clear_system_state();
+ return 0;
+}
+
+// Get the highest-spatial-layer output
+// TODO(david.barker): What should this do?
+int av1_get_frame_to_show(AV1Decoder *pbi, YV12_BUFFER_CONFIG *frame) {
+ if (pbi->num_output_frames == 0) return -1;
+
+ *frame = *pbi->output_frames[pbi->num_output_frames - 1];
+ return 0;
+}
diff --git a/third_party/aom/av1/decoder/decoder.h b/third_party/aom/av1/decoder/decoder.h
new file mode 100644
index 000000000..5ca939c24
--- /dev/null
+++ b/third_party/aom/av1/decoder/decoder.h
@@ -0,0 +1,317 @@
+/*
+ * 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_AV1_DECODER_DECODER_H_
+#define AOM_AV1_DECODER_DECODER_H_
+
+#include "config/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
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*decode_block_visitor_fn_t)(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ aom_reader *const r, const int plane,
+ const int row, const int col,
+ const TX_SIZE tx_size);
+
+typedef void (*predict_inter_block_visitor_fn_t)(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd,
+ int mi_row, int mi_col,
+ BLOCK_SIZE bsize);
+
+typedef void (*cfl_store_inter_block_visitor_fn_t)(AV1_COMMON *const cm,
+ MACROBLOCKD *const xd);
+
+typedef struct ThreadData {
+ aom_reader *bit_reader;
+ DECLARE_ALIGNED(32, MACROBLOCKD, xd);
+ /* dqcoeff are shared by all the planes. So planes must be decoded serially */
+ DECLARE_ALIGNED(32, tran_low_t, dqcoeff[MAX_TX_SQUARE]);
+ CB_BUFFER cb_buffer_base;
+ uint8_t *mc_buf[2];
+ int32_t mc_buf_size;
+ int mc_buf_use_highbd; // Boolean: whether the byte pointers stored in
+ // mc_buf were converted from highbd pointers.
+
+ CONV_BUF_TYPE *tmp_conv_dst;
+ uint8_t *tmp_obmc_bufs[2];
+
+ decode_block_visitor_fn_t read_coeffs_tx_intra_block_visit;
+ decode_block_visitor_fn_t predict_and_recon_intra_block_visit;
+ decode_block_visitor_fn_t read_coeffs_tx_inter_block_visit;
+ decode_block_visitor_fn_t inverse_tx_inter_block_visit;
+ predict_inter_block_visitor_fn_t predict_inter_block_visit;
+ cfl_store_inter_block_visitor_fn_t cfl_store_inter_block_visit;
+} ThreadData;
+
+typedef struct AV1DecRowMTJobInfo {
+ int tile_row;
+ int tile_col;
+ int mi_row;
+} AV1DecRowMTJobInfo;
+
+typedef struct AV1DecRowMTSyncData {
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t *mutex_;
+ pthread_cond_t *cond_;
+#endif
+ int allocated_sb_rows;
+ int *cur_sb_col;
+ int sync_range;
+ int mi_rows;
+ int mi_cols;
+ int mi_rows_parse_done;
+ int mi_rows_decode_started;
+ int num_threads_working;
+} AV1DecRowMTSync;
+
+typedef struct AV1DecRowMTInfo {
+ int tile_rows_start;
+ int tile_rows_end;
+ int tile_cols_start;
+ int tile_cols_end;
+ int start_tile;
+ int end_tile;
+ int mi_rows_parse_done;
+ int mi_rows_decode_started;
+ int mi_rows_to_decode;
+ int row_mt_exit;
+} AV1DecRowMTInfo;
+
+typedef struct TileDataDec {
+ TileInfo tile_info;
+ aom_reader bit_reader;
+ DECLARE_ALIGNED(16, FRAME_CONTEXT, tctx);
+ AV1DecRowMTSync dec_row_mt_sync;
+} TileDataDec;
+
+typedef struct TileBufferDec {
+ const uint8_t *data;
+ size_t size;
+} TileBufferDec;
+
+typedef struct DataBuffer {
+ const uint8_t *data;
+ size_t size;
+} DataBuffer;
+
+typedef struct EXTERNAL_REFERENCES {
+ YV12_BUFFER_CONFIG refs[MAX_EXTERNAL_REFERENCES];
+ int num;
+} EXTERNAL_REFERENCES;
+
+typedef struct TileJobsDec {
+ TileBufferDec *tile_buffer;
+ TileDataDec *tile_data;
+} TileJobsDec;
+
+typedef struct AV1DecTileMTData {
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t *job_mutex;
+#endif
+ TileJobsDec *job_queue;
+ int jobs_enqueued;
+ int jobs_dequeued;
+ int alloc_tile_rows;
+ int alloc_tile_cols;
+} AV1DecTileMT;
+
+typedef struct AV1Decoder {
+ DECLARE_ALIGNED(32, MACROBLOCKD, mb);
+
+ DECLARE_ALIGNED(32, AV1_COMMON, common);
+
+ 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;
+ AV1LfSync lf_row_sync;
+ AV1LrSync lr_row_sync;
+ AV1LrStruct lr_ctxt;
+ AVxWorker *tile_workers;
+ int num_workers;
+ DecWorkerData *thread_data;
+ ThreadData td;
+ TileDataDec *tile_data;
+ int allocated_tiles;
+
+ TileBufferDec tile_buffers[MAX_TILE_ROWS][MAX_TILE_COLS];
+ AV1DecTileMT tile_mt_info;
+
+ // Each time the decoder is called, we expect to receive a full temporal unit.
+ // This can contain up to one shown frame per spatial layer in the current
+ // operating point (note that some layers may be entirely omitted).
+ // If the 'output_all_layers' option is true, we save all of these shown
+ // frames so that they can be returned to the application. If the
+ // 'output_all_layers' option is false, then we only output one image per
+ // temporal unit.
+ //
+ // Note: The saved buffers are released at the start of the next time the
+ // application calls aom_codec_decode().
+ int output_all_layers;
+ YV12_BUFFER_CONFIG *output_frames[MAX_NUM_SPATIAL_LAYERS];
+ size_t output_frame_index[MAX_NUM_SPATIAL_LAYERS]; // Buffer pool indices
+ size_t num_output_frames; // How many frames are queued up so far?
+
+ // In order to properly support random-access decoding, we need
+ // to behave slightly differently for the very first frame we decode.
+ // So we track whether this is the first frame or not.
+ int decoding_first_frame;
+
+ int allow_lowbitdepth;
+ 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;
+ int tile_col_size_bytes;
+ int dec_tile_row, dec_tile_col; // always -1 for non-VR tile encoding
+#if CONFIG_ACCOUNTING
+ int acct_enabled;
+ Accounting accounting;
+#endif
+ int tg_size; // Number of tiles in the current tilegroup
+ int tg_start; // First tile in the current tilegroup
+ int tg_size_bit_offset;
+ int sequence_header_ready;
+ int sequence_header_changed;
+#if CONFIG_INSPECTION
+ aom_inspect_cb inspect_cb;
+ void *inspect_ctx;
+#endif
+ int operating_point;
+ int current_operating_point;
+ int seen_frame_header;
+
+ // State if the camera frame header is already decoded while
+ // large_scale_tile = 1.
+ int camera_frame_header_ready;
+ size_t frame_header_size;
+ DataBuffer obu_size_hdr;
+ int output_frame_width_in_tiles_minus_1;
+ int output_frame_height_in_tiles_minus_1;
+ int tile_count_minus_1;
+ uint32_t coded_tile_data_size;
+ unsigned int ext_tile_debug; // for ext-tile software debug & testing
+ unsigned int row_mt;
+ EXTERNAL_REFERENCES ext_refs;
+ size_t tile_list_size;
+ uint8_t *tile_list_output;
+ size_t buffer_sz;
+
+ CB_BUFFER *cb_buffer_base;
+ int cb_buffer_alloc_size;
+
+ int allocated_row_mt_sync_rows;
+
+#if CONFIG_MULTITHREAD
+ pthread_mutex_t *row_mt_mutex_;
+ pthread_cond_t *row_mt_cond_;
+#endif
+
+ AV1DecRowMTInfo frame_row_mt_info;
+} AV1Decoder;
+
+// Returns 0 on success. Sets pbi->common.error.error_code to a nonzero error
+// code and returns a nonzero value on failure.
+int av1_receive_compressed_data(struct AV1Decoder *pbi, size_t size,
+ const uint8_t **dest);
+
+// Get the frame at a particular index in the output queue
+int av1_get_raw_frame(AV1Decoder *pbi, size_t index, YV12_BUFFER_CONFIG **sd,
+ aom_film_grain_t **grain_params);
+
+int av1_get_frame_to_show(struct AV1Decoder *pbi, YV12_BUFFER_CONFIG *frame);
+
+aom_codec_err_t av1_copy_reference_dec(struct AV1Decoder *pbi, int idx,
+ YV12_BUFFER_CONFIG *sd);
+
+aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm, int idx,
+ int use_external_ref,
+ YV12_BUFFER_CONFIG *sd);
+aom_codec_err_t av1_copy_new_frame_dec(AV1_COMMON *cm,
+ YV12_BUFFER_CONFIG *new_frame,
+ YV12_BUFFER_CONFIG *sd);
+
+struct AV1Decoder *av1_decoder_create(BufferPool *const pool);
+
+void av1_decoder_remove(struct AV1Decoder *pbi);
+void av1_dealloc_dec_jobs(struct AV1DecTileMTData *tile_jobs_sync);
+
+void av1_dec_row_mt_dealloc(AV1DecRowMTSync *dec_row_mt_sync);
+
+void av1_dec_free_cb_buf(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);
+ }
+ }
+}
+
+#define ACCT_STR __func__
+static INLINE int av1_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);
+}
+
+typedef void (*palette_visitor_fn_t)(MACROBLOCKD *const xd, int plane,
+ aom_reader *r);
+
+void av1_visit_palette(AV1Decoder *const pbi, MACROBLOCKD *const xd, int mi_row,
+ int mi_col, aom_reader *r, BLOCK_SIZE bsize,
+ palette_visitor_fn_t visit);
+
+typedef void (*block_visitor_fn_t)(AV1Decoder *const pbi, ThreadData *const td,
+ int mi_row, int mi_col, aom_reader *r,
+ PARTITION_TYPE partition, BLOCK_SIZE bsize);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_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..f3ef2d55e
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodetxb.c
@@ -0,0 +1,362 @@
+/*
+ * 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/decodetxb.h"
+
+#include "aom_ports/mem.h"
+#include "av1/common/idct.h"
+#include "av1/common/scan.h"
+#include "av1/common/txb_common.h"
+#include "av1/decoder/decodemv.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 > 20) {
+ 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;
+}
+
+static INLINE int rec_eob_pos(const int eob_token, const int extra) {
+ int eob = k_eob_group_start[eob_token];
+ if (eob > 2) {
+ eob += extra;
+ }
+ return eob;
+}
+
+static INLINE int get_dqv(const int16_t *dequant, int coeff_idx,
+ const qm_val_t *iqmatrix) {
+ int dqv = dequant[!!coeff_idx];
+ if (iqmatrix != NULL)
+ dqv =
+ ((iqmatrix[coeff_idx] * dqv) + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS;
+ return dqv;
+}
+
+static INLINE void read_coeffs_reverse_2d(aom_reader *r, TX_SIZE tx_size,
+ int start_si, int end_si,
+ const int16_t *scan, int bwl,
+ uint8_t *levels,
+ base_cdf_arr base_cdf,
+ br_cdf_arr br_cdf) {
+ for (int c = end_si; c >= start_si; --c) {
+ const int pos = scan[c];
+ const int coeff_ctx = get_lower_levels_ctx_2d(levels, pos, bwl, tx_size);
+ const int nsymbs = 4;
+ int level = aom_read_symbol(r, base_cdf[coeff_ctx], nsymbs, ACCT_STR);
+ if (level > NUM_BASE_LEVELS) {
+ const int br_ctx = get_br_ctx_2d(levels, pos, bwl);
+ aom_cdf_prob *cdf = br_cdf[br_ctx];
+ for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) {
+ const int k = aom_read_symbol(r, cdf, BR_CDF_SIZE, ACCT_STR);
+ level += k;
+ if (k < BR_CDF_SIZE - 1) break;
+ }
+ }
+ levels[get_padded_idx(pos, bwl)] = level;
+ }
+}
+
+static INLINE void read_coeffs_reverse(aom_reader *r, TX_SIZE tx_size,
+ TX_CLASS tx_class, int start_si,
+ int end_si, const int16_t *scan, int bwl,
+ uint8_t *levels, base_cdf_arr base_cdf,
+ br_cdf_arr br_cdf) {
+ for (int c = end_si; c >= start_si; --c) {
+ const int pos = scan[c];
+ const int coeff_ctx =
+ get_lower_levels_ctx(levels, pos, bwl, tx_size, tx_class);
+ const int nsymbs = 4;
+ int level = aom_read_symbol(r, base_cdf[coeff_ctx], nsymbs, ACCT_STR);
+ if (level > NUM_BASE_LEVELS) {
+ const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class);
+ aom_cdf_prob *cdf = br_cdf[br_ctx];
+ for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) {
+ const int k = aom_read_symbol(r, cdf, BR_CDF_SIZE, ACCT_STR);
+ level += k;
+ if (k < BR_CDF_SIZE - 1) break;
+ }
+ }
+ levels[get_padded_idx(pos, bwl)] = level;
+ }
+}
+
+uint8_t av1_read_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCKD *const xd,
+ aom_reader *const r, const int blk_row,
+ const int blk_col, const int plane,
+ const TXB_CTX *const txb_ctx,
+ const TX_SIZE tx_size) {
+ FRAME_CONTEXT *const ec_ctx = xd->tile_ctx;
+ const int32_t max_value = (1 << (7 + xd->bd)) - 1;
+ const int32_t min_value = -(1 << (7 + xd->bd));
+ const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size);
+ const PLANE_TYPE plane_type = get_plane_type(plane);
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ const int16_t *const dequant = pd->seg_dequant_QTX[mbmi->segment_id];
+ tran_low_t *const tcoeffs = pd->dqcoeff_block + xd->cb_offset[plane];
+ const int shift = av1_get_tx_scale(tx_size);
+ const int bwl = get_txb_bwl(tx_size);
+ const int width = get_txb_wide(tx_size);
+ const int height = get_txb_high(tx_size);
+ int cul_level = 0;
+ int dc_val = 0;
+ uint8_t levels_buf[TX_PAD_2D];
+ uint8_t *const levels = set_levels(levels_buf, width);
+ const int all_zero = aom_read_symbol(
+ r, ec_ctx->txb_skip_cdf[txs_ctx][txb_ctx->txb_skip_ctx], 2, ACCT_STR);
+ eob_info *eob_data = pd->eob_data + xd->txb_offset[plane];
+ uint16_t *const eob = &(eob_data->eob);
+ uint16_t *const max_scan_line = &(eob_data->max_scan_line);
+ *max_scan_line = 0;
+ *eob = 0;
+ if (all_zero) {
+ *max_scan_line = 0;
+ if (plane == 0) {
+ const int txk_type_idx =
+ av1_get_txk_type_index(mbmi->sb_type, blk_row, blk_col);
+ mbmi->txk_type[txk_type_idx] = DCT_DCT;
+ }
+ return 0;
+ }
+
+ memset(levels_buf, 0,
+ sizeof(*levels_buf) *
+ ((width + TX_PAD_HOR) * (height + TX_PAD_VER) + TX_PAD_END));
+ if (plane == AOM_PLANE_Y) {
+ // only y plane's tx_type is transmitted
+ av1_read_tx_type(cm, xd, blk_row, blk_col, tx_size, r);
+ }
+ const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, blk_row, blk_col,
+ tx_size, cm->reduced_tx_set_used);
+ const TX_CLASS tx_class = tx_type_to_class[tx_type];
+ const TX_SIZE qm_tx_size = av1_get_adjusted_tx_size(tx_size);
+ const qm_val_t *iqmatrix =
+ IS_2D_TRANSFORM(tx_type)
+ ? pd->seg_iqmatrix[mbmi->segment_id][qm_tx_size]
+ : cm->giqmatrix[NUM_QM_LEVELS - 1][0][qm_tx_size];
+ const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type);
+ const int16_t *const scan = scan_order->scan;
+ int eob_extra = 0;
+ int eob_pt = 1;
+
+ const int eob_multi_size = txsize_log2_minus4[tx_size];
+ const int eob_multi_ctx = (tx_class == TX_CLASS_2D) ? 0 : 1;
+ switch (eob_multi_size) {
+ case 0:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf16[plane_type][eob_multi_ctx],
+ 5, ACCT_STR) +
+ 1;
+ break;
+ case 1:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf32[plane_type][eob_multi_ctx],
+ 6, ACCT_STR) +
+ 1;
+ break;
+ case 2:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf64[plane_type][eob_multi_ctx],
+ 7, ACCT_STR) +
+ 1;
+ break;
+ case 3:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf128[plane_type][eob_multi_ctx],
+ 8, ACCT_STR) +
+ 1;
+ break;
+ case 4:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf256[plane_type][eob_multi_ctx],
+ 9, ACCT_STR) +
+ 1;
+ break;
+ case 5:
+ eob_pt =
+ aom_read_symbol(r, ec_ctx->eob_flag_cdf512[plane_type][eob_multi_ctx],
+ 10, ACCT_STR) +
+ 1;
+ break;
+ case 6:
+ default:
+ eob_pt = aom_read_symbol(
+ r, ec_ctx->eob_flag_cdf1024[plane_type][eob_multi_ctx], 11,
+ ACCT_STR) +
+ 1;
+ break;
+ }
+
+ if (k_eob_offset_bits[eob_pt] > 0) {
+ const int eob_ctx = eob_pt - 3;
+ int bit = aom_read_symbol(
+ r, ec_ctx->eob_extra_cdf[txs_ctx][plane_type][eob_ctx], 2, ACCT_STR);
+ if (bit) {
+ eob_extra += (1 << (k_eob_offset_bits[eob_pt] - 1));
+ }
+
+ for (int i = 1; i < k_eob_offset_bits[eob_pt]; i++) {
+ bit = aom_read_bit(r, ACCT_STR);
+ if (bit) {
+ eob_extra += (1 << (k_eob_offset_bits[eob_pt] - 1 - i));
+ }
+ }
+ }
+ *eob = rec_eob_pos(eob_pt, eob_extra);
+
+ {
+ // Read the non-zero coefficient with scan index eob-1
+ // TODO(angiebird): Put this into a function
+ const int c = *eob - 1;
+ const int pos = scan[c];
+ const int coeff_ctx = get_lower_levels_ctx_eob(bwl, height, c);
+ const int nsymbs = 3;
+ aom_cdf_prob *cdf =
+ ec_ctx->coeff_base_eob_cdf[txs_ctx][plane_type][coeff_ctx];
+ int level = aom_read_symbol(r, cdf, nsymbs, ACCT_STR) + 1;
+ if (level > NUM_BASE_LEVELS) {
+ const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class);
+ for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) {
+ const int k = aom_read_symbol(
+ r,
+ ec_ctx->coeff_br_cdf[AOMMIN(txs_ctx, TX_32X32)][plane_type][br_ctx],
+ BR_CDF_SIZE, ACCT_STR);
+ level += k;
+ if (k < BR_CDF_SIZE - 1) break;
+ }
+ }
+ levels[get_padded_idx(pos, bwl)] = level;
+ }
+ if (*eob > 1) {
+ base_cdf_arr base_cdf = ec_ctx->coeff_base_cdf[txs_ctx][plane_type];
+ br_cdf_arr br_cdf =
+ ec_ctx->coeff_br_cdf[AOMMIN(txs_ctx, TX_32X32)][plane_type];
+ if (tx_class == TX_CLASS_2D) {
+ read_coeffs_reverse_2d(r, tx_size, 1, *eob - 1 - 1, scan, bwl, levels,
+ base_cdf, br_cdf);
+ read_coeffs_reverse(r, tx_size, tx_class, 0, 0, scan, bwl, levels,
+ base_cdf, br_cdf);
+ } else {
+ read_coeffs_reverse(r, tx_size, tx_class, 0, *eob - 1 - 1, scan, bwl,
+ levels, base_cdf, br_cdf);
+ }
+ }
+
+ int16_t num_zero_coeffs = 0;
+ for (int c = 0; c < *eob; ++c) {
+ const int pos = scan[c];
+ num_zero_coeffs = AOMMAX(num_zero_coeffs, pos);
+ }
+ memset(tcoeffs, 0, (num_zero_coeffs + 1) * sizeof(tcoeffs[0]));
+
+ for (int c = 0; c < *eob; ++c) {
+ const int pos = scan[c];
+ uint8_t sign;
+ tran_low_t level = levels[get_padded_idx(pos, bwl)];
+ if (level) {
+ *max_scan_line = AOMMAX(*max_scan_line, pos);
+ if (c == 0) {
+ const int dc_sign_ctx = txb_ctx->dc_sign_ctx;
+ sign = aom_read_symbol(r, ec_ctx->dc_sign_cdf[plane_type][dc_sign_ctx],
+ 2, ACCT_STR);
+ } else {
+ sign = aom_read_bit(r, ACCT_STR);
+ }
+ if (level >= MAX_BASE_BR_RANGE) {
+ level += read_golomb(xd, r);
+ }
+
+ if (c == 0) dc_val = sign ? -level : level;
+
+ // Bitmasking to clamp level to valid range:
+ // The valid range for 8/10/12 bit vdieo is at most 14/16/18 bit
+ level &= 0xfffff;
+ cul_level += level;
+ tran_low_t dq_coeff;
+ // Bitmasking to clamp dq_coeff to valid range:
+ // The valid range for 8/10/12 bit video is at most 17/19/21 bit
+ dq_coeff = (tran_low_t)(
+ (int64_t)level * get_dqv(dequant, scan[c], iqmatrix) & 0xffffff);
+ dq_coeff = dq_coeff >> shift;
+ if (sign) {
+ dq_coeff = -dq_coeff;
+ }
+ tcoeffs[pos] = clamp(dq_coeff, min_value, max_value);
+ }
+ }
+
+ cul_level = AOMMIN(COEFF_CONTEXT_MASK, cul_level);
+
+ // DC value
+ set_dc_sign(&cul_level, dc_val);
+
+ return cul_level;
+}
+
+void av1_read_coeffs_txb_facade(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, aom_reader *const r,
+ const int plane, const int row, const int col,
+ const TX_SIZE tx_size) {
+#if TXCOEFF_TIMER
+ struct aom_usec_timer timer;
+ aom_usec_timer_start(&timer);
+#endif
+ MB_MODE_INFO *const mbmi = xd->mi[0];
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+
+ const BLOCK_SIZE bsize = mbmi->sb_type;
+ const BLOCK_SIZE plane_bsize =
+ get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y);
+
+ TXB_CTX txb_ctx;
+ get_txb_ctx(plane_bsize, tx_size, plane, pd->above_context + col,
+ pd->left_context + row, &txb_ctx);
+ const uint8_t cul_level =
+ av1_read_coeffs_txb(cm, xd, r, row, col, plane, &txb_ctx, tx_size);
+ av1_set_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, col, row);
+
+ if (is_inter_block(mbmi)) {
+ PLANE_TYPE plane_type = get_plane_type(plane);
+ // tx_type will be read out in av1_read_coeffs_txb_facade
+ const TX_TYPE tx_type = av1_get_tx_type(plane_type, xd, row, col, tx_size,
+ cm->reduced_tx_set_used);
+
+ if (plane == 0)
+ update_txk_array(mbmi->txk_type, mbmi->sb_type, row, col, tx_size,
+ tx_type);
+ }
+
+#if TXCOEFF_TIMER
+ aom_usec_timer_mark(&timer);
+ const int64_t elapsed_time = aom_usec_timer_elapsed(&timer);
+ cm->txcoeff_timer += elapsed_time;
+ ++cm->txb_count;
+#endif
+}
diff --git a/third_party/aom/av1/decoder/decodetxb.h b/third_party/aom/av1/decoder/decodetxb.h
new file mode 100644
index 000000000..fe04f6abd
--- /dev/null
+++ b/third_party/aom/av1/decoder/decodetxb.h
@@ -0,0 +1,32 @@
+/*
+ * 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_AV1_DECODER_DECODETXB_H_
+#define AOM_AV1_DECODER_DECODETXB_H_
+
+#include "config/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 *const xd,
+ aom_reader *const r, const int blk_row,
+ const int blk_col, const int plane,
+ const TXB_CTX *const txb_ctx,
+ const TX_SIZE tx_size);
+
+void av1_read_coeffs_txb_facade(const AV1_COMMON *const cm,
+ MACROBLOCKD *const xd, aom_reader *const r,
+ const int plane, const int row, const int col,
+ const TX_SIZE tx_size);
+#endif // AOM_AV1_DECODER_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..9d54bd13d
--- /dev/null
+++ b/third_party/aom/av1/decoder/detokenize.c
@@ -0,0 +1,78 @@
+/*
+ * 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 "config/aom_config.h"
+
+#include "aom_mem/aom_mem.h"
+#include "aom_ports/mem.h"
+#include "av1/common/blockd.h"
+#include "av1/decoder/detokenize.h"
+
+#define ACCT_STR __func__
+
+#include "av1/common/common.h"
+#include "av1/common/entropy.h"
+#include "av1/common/idct.h"
+
+static void decode_color_map_tokens(Av1ColorMapParam *param, aom_reader *r) {
+ uint8_t color_order[PALETTE_MAX_SIZE];
+ const int n = param->n_colors;
+ uint8_t *const color_map = param->color_map;
+ MapCdf color_map_cdf = param->map_cdf;
+ int plane_block_width = param->plane_width;
+ int plane_block_height = param->plane_height;
+ int rows = param->rows;
+ int cols = param->cols;
+
+ // The first color index.
+ color_map[0] = av1_read_uniform(r, n);
+ assert(color_map[0] < n);
+
+ // Run wavefront on the palette map index decoding.
+ for (int i = 1; i < rows + cols - 1; ++i) {
+ for (int 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_symbol(
+ r, color_map_cdf[n - PALETTE_MIN_SIZE][color_ctx], n, 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 (int i = 0; i < rows; ++i) {
+ memset(color_map + i * plane_block_width + cols,
+ color_map[i * plane_block_width + cols - 1],
+ (plane_block_width - cols));
+ }
+ }
+ // Copy last row to extra rows.
+ for (int i = rows; i < plane_block_height; ++i) {
+ memcpy(color_map + i * plane_block_width,
+ color_map + (rows - 1) * plane_block_width, plane_block_width);
+ }
+}
+
+void av1_decode_palette_tokens(MACROBLOCKD *const xd, int plane,
+ aom_reader *r) {
+ assert(plane == 0 || plane == 1);
+ Av1ColorMapParam params;
+ params.color_map =
+ xd->plane[plane].color_index_map + xd->color_index_map_offset[plane];
+ params.map_cdf = plane ? xd->tile_ctx->palette_uv_color_index_cdf
+ : xd->tile_ctx->palette_y_color_index_cdf;
+ const MB_MODE_INFO *const mbmi = xd->mi[0];
+ params.n_colors = mbmi->palette_mode_info.palette_size[plane];
+ av1_get_block_dimensions(mbmi->sb_type, plane, xd, &params.plane_width,
+ &params.plane_height, &params.rows, &params.cols);
+ decode_color_map_tokens(&params, r);
+}
diff --git a/third_party/aom/av1/decoder/detokenize.h b/third_party/aom/av1/decoder/detokenize.h
new file mode 100644
index 000000000..173b437a9
--- /dev/null
+++ b/third_party/aom/av1/decoder/detokenize.h
@@ -0,0 +1,29 @@
+/*
+ * 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_AV1_DECODER_DETOKENIZE_H_
+#define AOM_AV1_DECODER_DETOKENIZE_H_
+
+#include "config/aom_config.h"
+
+#include "av1/common/scan.h"
+#include "av1/decoder/decoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void av1_decode_palette_tokens(MACROBLOCKD *const xd, int plane, aom_reader *r);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+#endif // AOM_AV1_DECODER_DETOKENIZE_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..3946c787a
--- /dev/null
+++ b/third_party/aom/av1/decoder/dthread.c
@@ -0,0 +1,192 @@
+/*
+ * 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 "config/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->seq_params.bit_depth = src_cm->seq_params.bit_depth;
+ dst_cm->seq_params.use_highbitdepth = src_cm->seq_params.use_highbitdepth;
+ // TODO(zoeliu): To handle parallel decoding
+ 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->seq_params.subsampling_x = src_cm->seq_params.subsampling_x;
+ dst_cm->seq_params.subsampling_y = src_cm->seq_params.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.sharpness_level = src_cm->lf.sharpness_level;
+ dst_cm->lf.filter_level[0] = src_cm->lf.filter_level[0];
+ dst_cm->lf.filter_level[1] = src_cm->lf.filter_level[1];
+ memcpy(dst_cm->lf.ref_deltas, src_cm->lf.ref_deltas, REF_FRAMES);
+ 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..1d264b07e
--- /dev/null
+++ b/third_party/aom/av1/decoder/dthread.h
@@ -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.
+ */
+
+#ifndef AOM_AV1_DECODER_DTHREAD_H_
+#define AOM_AV1_DECODER_DTHREAD_H_
+
+#include "config/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;
+struct ThreadData;
+
+typedef struct DecWorkerData {
+ struct ThreadData *td;
+ const uint8_t *data_end;
+ struct aom_internal_error_info error_info;
+} DecWorkerData;
+
+// 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 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 // AOM_AV1_DECODER_DTHREAD_H_
diff --git a/third_party/aom/av1/decoder/inspection.c b/third_party/aom/av1/decoder/inspection.c
new file mode 100644
index 000000000..e6c89298a
--- /dev/null
+++ b/third_party/aom/av1/decoder/inspection.c
@@ -0,0 +1,117 @@
+/*
+ * 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"
+#include "av1/common/cdef.h"
+
+static void ifd_init_mi_rc(insp_frame_data *fd, int mi_cols, int mi_rows) {
+ fd->mi_cols = mi_cols;
+ fd->mi_rows = mi_rows;
+ fd->mi_grid = (insp_mi_data *)aom_malloc(sizeof(insp_mi_data) * fd->mi_rows *
+ fd->mi_cols);
+}
+
+void ifd_init(insp_frame_data *fd, int frame_width, int frame_height) {
+ int mi_cols = ALIGN_POWER_OF_TWO(frame_width, 3) >> MI_SIZE_LOG2;
+ int mi_rows = ALIGN_POWER_OF_TWO(frame_height, 3) >> MI_SIZE_LOG2;
+ ifd_init_mi_rc(fd, mi_cols, mi_rows);
+}
+
+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;
+ if (fd->mi_rows != cm->mi_rows || fd->mi_cols != cm->mi_cols) {
+ ifd_clear(fd);
+ ifd_init_mi_rc(fd, cm->mi_rows, cm->mi_cols);
+ }
+ fd->show_frame = cm->show_frame;
+ fd->frame_type = cm->frame_type;
+ fd->base_qindex = cm->base_qindex;
+ // Set width and height of the first tile until generic support can be added
+ TileInfo tile_info;
+ av1_tile_set_row(&tile_info, cm, 0);
+ av1_tile_set_col(&tile_info, cm, 0);
+ fd->tile_mi_cols = tile_info.mi_col_end - tile_info.mi_col_start;
+ fd->tile_mi_rows = tile_info.mi_row_end - tile_info.mi_row_start;
+ fd->delta_q_present_flag = cm->delta_q_present_flag;
+ fd->delta_q_res = cm->delta_q_res;
+#if CONFIG_ACCOUNTING
+ fd->accounting = &pbi->accounting;
+#endif
+ // TODO(negge): copy per frame CDEF data
+ int i, j;
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ for (j = 0; j < 2; j++) {
+ fd->y_dequant[i][j] = cm->y_dequant_QTX[i][j];
+ fd->u_dequant[i][j] = cm->u_dequant_QTX[i][j];
+ fd->v_dequant[i][j] = cm->v_dequant_QTX[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];
+ 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 = UV_MODE_INVALID;
+ }
+ // Block Size
+ mi->sb_type = mbmi->sb_type;
+ // Skip Flag
+ mi->skip = mbmi->skip;
+ mi->filter[0] = av1_extract_interp_filter(mbmi->interp_filters, 0);
+ mi->filter[1] = av1_extract_interp_filter(mbmi->interp_filters, 1);
+ mi->dual_filter_type = mi->filter[0] * 3 + mi->filter[1];
+ // Transform
+ // TODO(anyone): extract tx type info from mbmi->txk_type[].
+ mi->tx_type = DCT_DCT;
+ mi->tx_size = mbmi->tx_size;
+
+ mi->cdef_level =
+ cm->cdef_strengths[mbmi->cdef_strength] / CDEF_SEC_STRENGTHS;
+ mi->cdef_strength =
+ cm->cdef_strengths[mbmi->cdef_strength] % CDEF_SEC_STRENGTHS;
+ mi->cdef_strength += mi->cdef_strength == 3;
+ if (mbmi->uv_mode == UV_CFL_PRED) {
+ mi->cfl_alpha_idx = mbmi->cfl_alpha_idx;
+ mi->cfl_alpha_sign = mbmi->cfl_alpha_signs;
+ } else {
+ mi->cfl_alpha_idx = 0;
+ mi->cfl_alpha_sign = 0;
+ }
+ // delta_q
+ mi->current_qindex = mbmi->current_qindex;
+ }
+ }
+ 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..7214a9bed
--- /dev/null
+++ b/third_party/aom/av1/decoder/inspection.h
@@ -0,0 +1,84 @@
+/*
+ * 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_AV1_DECODER_INSPECTION_H_
+#define AOM_AV1_DECODER_INSPECTION_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#include "av1/common/seg_common.h"
+#if CONFIG_ACCOUNTING
+#include "av1/decoder/accounting.h"
+#endif
+
+#ifndef AOM_AOMDX_H_
+typedef void (*aom_inspect_cb)(void *decoder, void *data);
+#endif
+
+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];
+ int16_t ref_frame[2];
+ int16_t mode;
+ int16_t uv_mode;
+ int16_t sb_type;
+ int16_t skip;
+ int16_t segment_id;
+ int16_t dual_filter_type;
+ int16_t filter[2];
+ int16_t tx_type;
+ int16_t tx_size;
+ int16_t cdef_level;
+ int16_t cdef_strength;
+ int16_t cfl_alpha_idx;
+ int16_t cfl_alpha_sign;
+ int16_t current_qindex;
+};
+
+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 u_dequant[MAX_SEGMENTS][2];
+ int16_t v_dequant[MAX_SEGMENTS][2];
+ // TODO(negge): add per frame CDEF data
+ int delta_q_present_flag;
+ int delta_q_res;
+};
+
+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_AV1_DECODER_INSPECTION_H_
diff --git a/third_party/aom/av1/decoder/obu.c b/third_party/aom/av1/decoder/obu.c
new file mode 100644
index 000000000..44ecf818e
--- /dev/null
+++ b/third_party/aom/av1/decoder/obu.c
@@ -0,0 +1,839 @@
+/*
+ * 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 <assert.h>
+
+#include "config/aom_config.h"
+
+#include "aom/aom_codec.h"
+#include "aom_dsp/bitreader_buffer.h"
+#include "aom_ports/mem_ops.h"
+
+#include "av1/common/common.h"
+#include "av1/common/obu_util.h"
+#include "av1/common/timing.h"
+#include "av1/decoder/decoder.h"
+#include "av1/decoder/decodeframe.h"
+#include "av1/decoder/obu.h"
+
+// Picture prediction structures (0-12 are predefined) in scalability metadata.
+typedef enum {
+ SCALABILITY_L1T2 = 0,
+ SCALABILITY_L1T3 = 1,
+ SCALABILITY_L2T1 = 2,
+ SCALABILITY_L2T2 = 3,
+ SCALABILITY_L2T3 = 4,
+ SCALABILITY_S2T1 = 5,
+ SCALABILITY_S2T2 = 6,
+ SCALABILITY_S2T3 = 7,
+ SCALABILITY_L2T1h = 8,
+ SCALABILITY_L2T2h = 9,
+ SCALABILITY_L2T3h = 10,
+ SCALABILITY_S2T1h = 11,
+ SCALABILITY_S2T2h = 12,
+ SCALABILITY_S2T3h = 13,
+ SCALABILITY_SS = 14
+} SCALABILITY_STRUCTURES;
+
+aom_codec_err_t aom_get_num_layers_from_operating_point_idc(
+ int operating_point_idc, unsigned int *number_spatial_layers,
+ unsigned int *number_temporal_layers) {
+ // derive number of spatial/temporal layers from operating_point_idc
+
+ if (!number_spatial_layers || !number_temporal_layers)
+ return AOM_CODEC_INVALID_PARAM;
+
+ if (operating_point_idc == 0) {
+ *number_temporal_layers = 1;
+ *number_spatial_layers = 1;
+ } else {
+ *number_spatial_layers = 0;
+ *number_temporal_layers = 0;
+ for (int j = 0; j < MAX_NUM_SPATIAL_LAYERS; j++) {
+ *number_spatial_layers +=
+ (operating_point_idc >> (j + MAX_NUM_TEMPORAL_LAYERS)) & 0x1;
+ }
+ for (int j = 0; j < MAX_NUM_TEMPORAL_LAYERS; j++) {
+ *number_temporal_layers += (operating_point_idc >> j) & 0x1;
+ }
+ }
+
+ return AOM_CODEC_OK;
+}
+
+static int is_obu_in_current_operating_point(AV1Decoder *pbi,
+ ObuHeader obu_header) {
+ if (!pbi->current_operating_point) {
+ return 1;
+ }
+
+ if ((pbi->current_operating_point >> obu_header.temporal_layer_id) & 0x1 &&
+ (pbi->current_operating_point >> (obu_header.spatial_layer_id + 8)) &
+ 0x1) {
+ return 1;
+ }
+ return 0;
+}
+
+static int byte_alignment(AV1_COMMON *const cm,
+ struct aom_read_bit_buffer *const rb) {
+ while (rb->bit_offset & 7) {
+ if (aom_rb_read_bit(rb)) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static uint32_t read_temporal_delimiter_obu() { return 0; }
+
+// Returns a boolean that indicates success.
+static int read_bitstream_level(BitstreamLevel *bl,
+ struct aom_read_bit_buffer *rb) {
+ const uint8_t seq_level_idx = aom_rb_read_literal(rb, LEVEL_BITS);
+ if (!is_valid_seq_level_idx(seq_level_idx)) return 0;
+ bl->major = (seq_level_idx >> LEVEL_MINOR_BITS) + LEVEL_MAJOR_MIN;
+ bl->minor = seq_level_idx & ((1 << LEVEL_MINOR_BITS) - 1);
+ return 1;
+}
+
+// Returns whether two sequence headers are consistent with each other.
+// TODO(huisu,wtc@google.com): make sure the code matches the spec exactly.
+static int are_seq_headers_consistent(const SequenceHeader *seq_params_old,
+ const SequenceHeader *seq_params_new) {
+ return !memcmp(seq_params_old, seq_params_new, sizeof(SequenceHeader));
+}
+
+// On success, sets pbi->sequence_header_ready to 1 and returns the number of
+// bytes read from 'rb'.
+// On failure, sets pbi->common.error.error_code and returns 0.
+static uint32_t read_sequence_header_obu(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb) {
+ AV1_COMMON *const cm = &pbi->common;
+ const uint32_t saved_bit_offset = rb->bit_offset;
+
+ // Verify rb has been configured to report errors.
+ assert(rb->error_handler);
+
+ // Use a local variable to store the information as we decode. At the end,
+ // if no errors have occurred, cm->seq_params is updated.
+ SequenceHeader sh = cm->seq_params;
+ SequenceHeader *const seq_params = &sh;
+
+ seq_params->profile = av1_read_profile(rb);
+ if (seq_params->profile > CONFIG_MAX_DECODE_PROFILE) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return 0;
+ }
+
+ // Still picture or not
+ seq_params->still_picture = aom_rb_read_bit(rb);
+ seq_params->reduced_still_picture_hdr = aom_rb_read_bit(rb);
+ // Video must have reduced_still_picture_hdr = 0
+ if (!seq_params->still_picture && seq_params->reduced_still_picture_hdr) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return 0;
+ }
+
+ if (seq_params->reduced_still_picture_hdr) {
+ cm->timing_info_present = 0;
+ seq_params->decoder_model_info_present_flag = 0;
+ seq_params->display_model_info_present_flag = 0;
+ seq_params->operating_points_cnt_minus_1 = 0;
+ seq_params->operating_point_idc[0] = 0;
+ if (!read_bitstream_level(&seq_params->level[0], rb)) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return 0;
+ }
+ seq_params->tier[0] = 0;
+ cm->op_params[0].decoder_model_param_present_flag = 0;
+ cm->op_params[0].display_model_param_present_flag = 0;
+ } else {
+ cm->timing_info_present = aom_rb_read_bit(rb); // timing_info_present_flag
+ if (cm->timing_info_present) {
+ av1_read_timing_info_header(cm, rb);
+
+ seq_params->decoder_model_info_present_flag = aom_rb_read_bit(rb);
+ if (seq_params->decoder_model_info_present_flag)
+ av1_read_decoder_model_info(cm, rb);
+ } else {
+ seq_params->decoder_model_info_present_flag = 0;
+ }
+ seq_params->display_model_info_present_flag = aom_rb_read_bit(rb);
+ seq_params->operating_points_cnt_minus_1 =
+ aom_rb_read_literal(rb, OP_POINTS_CNT_MINUS_1_BITS);
+ for (int i = 0; i < seq_params->operating_points_cnt_minus_1 + 1; i++) {
+ seq_params->operating_point_idc[i] =
+ aom_rb_read_literal(rb, OP_POINTS_IDC_BITS);
+ if (!read_bitstream_level(&seq_params->level[i], rb)) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return 0;
+ }
+ // This is the seq_level_idx[i] > 7 check in the spec. seq_level_idx 7
+ // is equivalent to level 3.3.
+ if (seq_params->level[i].major > 3)
+ seq_params->tier[i] = aom_rb_read_bit(rb);
+ else
+ seq_params->tier[i] = 0;
+ if (seq_params->decoder_model_info_present_flag) {
+ cm->op_params[i].decoder_model_param_present_flag = aom_rb_read_bit(rb);
+ if (cm->op_params[i].decoder_model_param_present_flag)
+ av1_read_op_parameters_info(cm, rb, i);
+ } else {
+ cm->op_params[i].decoder_model_param_present_flag = 0;
+ }
+ if (cm->timing_info_present &&
+ (cm->timing_info.equal_picture_interval ||
+ cm->op_params[i].decoder_model_param_present_flag)) {
+ cm->op_params[i].bitrate = max_level_bitrate(
+ seq_params->profile,
+ major_minor_to_seq_level_idx(seq_params->level[i]),
+ seq_params->tier[i]);
+ // Level with seq_level_idx = 31 returns a high "dummy" bitrate to pass
+ // the check
+ if (cm->op_params[i].bitrate == 0)
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "AV1 does not support this combination of "
+ "profile, level, and tier.");
+ // Buffer size in bits/s is bitrate in bits/s * 1 s
+ cm->op_params[i].buffer_size = cm->op_params[i].bitrate;
+ }
+ if (cm->timing_info_present && cm->timing_info.equal_picture_interval &&
+ !cm->op_params[i].decoder_model_param_present_flag) {
+ // When the decoder_model_parameters are not sent for this op, set
+ // the default ones that can be used with the resource availability mode
+ cm->op_params[i].decoder_buffer_delay = 70000;
+ cm->op_params[i].encoder_buffer_delay = 20000;
+ cm->op_params[i].low_delay_mode_flag = 0;
+ }
+
+ if (seq_params->display_model_info_present_flag) {
+ cm->op_params[i].display_model_param_present_flag = aom_rb_read_bit(rb);
+ if (cm->op_params[i].display_model_param_present_flag) {
+ cm->op_params[i].initial_display_delay =
+ aom_rb_read_literal(rb, 4) + 1;
+ if (cm->op_params[i].initial_display_delay > 10)
+ aom_internal_error(
+ &cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "AV1 does not support more than 10 decoded frames delay");
+ } else {
+ cm->op_params[i].initial_display_delay = 10;
+ }
+ } else {
+ cm->op_params[i].display_model_param_present_flag = 0;
+ cm->op_params[i].initial_display_delay = 10;
+ }
+ }
+ }
+ // This decoder supports all levels. Choose operating point provided by
+ // external means
+ int operating_point = pbi->operating_point;
+ if (operating_point < 0 ||
+ operating_point > seq_params->operating_points_cnt_minus_1)
+ operating_point = 0;
+ pbi->current_operating_point =
+ seq_params->operating_point_idc[operating_point];
+ if (aom_get_num_layers_from_operating_point_idc(
+ pbi->current_operating_point, &cm->number_spatial_layers,
+ &cm->number_temporal_layers) != AOM_CODEC_OK) {
+ cm->error.error_code = AOM_CODEC_ERROR;
+ return 0;
+ }
+
+ av1_read_sequence_header(cm, rb, seq_params);
+
+ av1_read_color_config(rb, pbi->allow_lowbitdepth, seq_params, &cm->error);
+ if (!(seq_params->subsampling_x == 0 && seq_params->subsampling_y == 0) &&
+ !(seq_params->subsampling_x == 1 && seq_params->subsampling_y == 1) &&
+ !(seq_params->subsampling_x == 1 && seq_params->subsampling_y == 0)) {
+ aom_internal_error(&cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "Only 4:4:4, 4:2:2 and 4:2:0 are currently supported, "
+ "%d %d subsampling is not supported.\n",
+ seq_params->subsampling_x, seq_params->subsampling_y);
+ }
+
+ seq_params->film_grain_params_present = aom_rb_read_bit(rb);
+
+ if (av1_check_trailing_bits(pbi, rb) != 0) {
+ // cm->error.error_code is already set.
+ return 0;
+ }
+
+ // If a sequence header has been decoded before, we check if the new
+ // one is consistent with the old one.
+ if (pbi->sequence_header_ready) {
+ if (!are_seq_headers_consistent(&cm->seq_params, seq_params))
+ pbi->sequence_header_changed = 1;
+ }
+
+ cm->seq_params = *seq_params;
+ pbi->sequence_header_ready = 1;
+
+ return ((rb->bit_offset - saved_bit_offset + 7) >> 3);
+}
+
+// On success, returns the frame header size. On failure, calls
+// aom_internal_error and does not return.
+static uint32_t read_frame_header_obu(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb,
+ const uint8_t *data,
+ const uint8_t **p_data_end,
+ int trailing_bits_present) {
+ return av1_decode_frame_headers_and_setup(pbi, rb, data, p_data_end,
+ trailing_bits_present);
+}
+
+static int32_t read_tile_group_header(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb,
+ int *start_tile, int *end_tile,
+ int tile_start_implicit) {
+ AV1_COMMON *const cm = &pbi->common;
+ uint32_t saved_bit_offset = rb->bit_offset;
+ int tile_start_and_end_present_flag = 0;
+ const int num_tiles = pbi->common.tile_rows * pbi->common.tile_cols;
+
+ if (!pbi->common.large_scale_tile && num_tiles > 1) {
+ tile_start_and_end_present_flag = aom_rb_read_bit(rb);
+ }
+ if (pbi->common.large_scale_tile || num_tiles == 1 ||
+ !tile_start_and_end_present_flag) {
+ *start_tile = 0;
+ *end_tile = num_tiles - 1;
+ return ((rb->bit_offset - saved_bit_offset + 7) >> 3);
+ }
+ if (tile_start_implicit && tile_start_and_end_present_flag) {
+ aom_internal_error(
+ &cm->error, AOM_CODEC_UNSUP_BITSTREAM,
+ "For OBU_FRAME type obu tile_start_and_end_present_flag must be 0");
+ return -1;
+ }
+ *start_tile =
+ aom_rb_read_literal(rb, cm->log2_tile_rows + cm->log2_tile_cols);
+ *end_tile = aom_rb_read_literal(rb, cm->log2_tile_rows + cm->log2_tile_cols);
+
+ return ((rb->bit_offset - saved_bit_offset + 7) >> 3);
+}
+
+static uint32_t read_one_tile_group_obu(
+ AV1Decoder *pbi, struct aom_read_bit_buffer *rb, int is_first_tg,
+ const uint8_t *data, const uint8_t *data_end, const uint8_t **p_data_end,
+ int *is_last_tg, int tile_start_implicit) {
+ AV1_COMMON *const cm = &pbi->common;
+ int start_tile, end_tile;
+ int32_t header_size, tg_payload_size;
+
+ assert((rb->bit_offset & 7) == 0);
+ assert(rb->bit_buffer + aom_rb_bytes_read(rb) == data);
+
+ header_size = read_tile_group_header(pbi, rb, &start_tile, &end_tile,
+ tile_start_implicit);
+ if (header_size == -1 || byte_alignment(cm, rb)) return 0;
+ if (start_tile > end_tile) return header_size;
+ data += header_size;
+ av1_decode_tg_tiles_and_wrapup(pbi, data, data_end, p_data_end, start_tile,
+ end_tile, is_first_tg);
+
+ tg_payload_size = (uint32_t)(*p_data_end - data);
+
+ // TODO(shan): For now, assume all tile groups received in order
+ *is_last_tg = end_tile == cm->tile_rows * cm->tile_cols - 1;
+ return header_size + tg_payload_size;
+}
+
+static void alloc_tile_list_buffer(AV1Decoder *pbi) {
+ // TODO(yunqing): for now, copy each tile's decoded YUV data directly to the
+ // output buffer. This needs to be modified according to the application
+ // requirement.
+ AV1_COMMON *const cm = &pbi->common;
+ const int tile_width_in_pixels = cm->tile_width * MI_SIZE;
+ const int tile_height_in_pixels = cm->tile_height * MI_SIZE;
+ const int ssy = cm->seq_params.subsampling_y;
+ const int ssx = cm->seq_params.subsampling_x;
+ const int num_planes = av1_num_planes(cm);
+ const size_t yplane_tile_size = tile_height_in_pixels * tile_width_in_pixels;
+ const size_t uvplane_tile_size =
+ (num_planes > 1)
+ ? (tile_height_in_pixels >> ssy) * (tile_width_in_pixels >> ssx)
+ : 0;
+ const size_t tile_size = (cm->seq_params.use_highbitdepth ? 2 : 1) *
+ (yplane_tile_size + 2 * uvplane_tile_size);
+ pbi->tile_list_size = tile_size * (pbi->tile_count_minus_1 + 1);
+
+ if (pbi->tile_list_size > pbi->buffer_sz) {
+ if (pbi->tile_list_output != NULL) aom_free(pbi->tile_list_output);
+ pbi->tile_list_output = NULL;
+
+ pbi->tile_list_output = (uint8_t *)aom_memalign(32, pbi->tile_list_size);
+ if (pbi->tile_list_output == NULL)
+ aom_internal_error(&cm->error, AOM_CODEC_MEM_ERROR,
+ "Failed to allocate the tile list output buffer");
+ pbi->buffer_sz = pbi->tile_list_size;
+ }
+}
+
+static void copy_decoded_tile_to_tile_list_buffer(AV1Decoder *pbi,
+ uint8_t **output) {
+ AV1_COMMON *const cm = &pbi->common;
+ const int tile_width_in_pixels = cm->tile_width * MI_SIZE;
+ const int tile_height_in_pixels = cm->tile_height * MI_SIZE;
+ const int ssy = cm->seq_params.subsampling_y;
+ const int ssx = cm->seq_params.subsampling_x;
+ const int num_planes = av1_num_planes(cm);
+
+ // Copy decoded tile to the tile list output buffer.
+ YV12_BUFFER_CONFIG *cur_frame = get_frame_new_buffer(cm);
+ const int mi_row = pbi->dec_tile_row * cm->tile_height;
+ const int mi_col = pbi->dec_tile_col * cm->tile_width;
+ const int is_hbd = (cur_frame->flags & YV12_FLAG_HIGHBITDEPTH) ? 1 : 0;
+ uint8_t *bufs[MAX_MB_PLANE] = { NULL, NULL, NULL };
+ int strides[MAX_MB_PLANE] = { 0, 0, 0 };
+ int plane;
+
+ for (plane = 0; plane < num_planes; ++plane) {
+ int shift_x = plane > 0 ? ssx : 0;
+ int shift_y = plane > 0 ? ssy : 0;
+
+ bufs[plane] = cur_frame->buffers[plane];
+ strides[plane] =
+ (plane > 0) ? cur_frame->strides[1] : cur_frame->strides[0];
+
+ bufs[plane] += mi_row * (MI_SIZE >> shift_y) * strides[plane] +
+ mi_col * (MI_SIZE >> shift_x);
+
+ if (is_hbd) {
+ bufs[plane] = (uint8_t *)CONVERT_TO_SHORTPTR(bufs[plane]);
+ strides[plane] *= 2;
+ }
+
+ int w, h;
+ w = (plane > 0 && shift_x > 0) ? ((tile_width_in_pixels + 1) >> shift_x)
+ : tile_width_in_pixels;
+ w *= (1 + is_hbd);
+ h = (plane > 0 && shift_y > 0) ? ((tile_height_in_pixels + 1) >> shift_y)
+ : tile_height_in_pixels;
+ int j;
+
+ for (j = 0; j < h; ++j) {
+ memcpy(*output, bufs[plane], w);
+ bufs[plane] += strides[plane];
+ *output += w;
+ }
+ }
+}
+
+// Only called while large_scale_tile = 1.
+static uint32_t read_and_decode_one_tile_list(AV1Decoder *pbi,
+ struct aom_read_bit_buffer *rb,
+ const uint8_t *data,
+ const uint8_t *data_end,
+ const uint8_t **p_data_end,
+ int *frame_decoding_finished) {
+ AV1_COMMON *const cm = &pbi->common;
+ uint32_t tile_list_payload_size = 0;
+ const int num_tiles = cm->tile_cols * cm->tile_rows;
+ const int start_tile = 0;
+ const int end_tile = num_tiles - 1;
+ int i = 0;
+
+ // Process the tile list info.
+ pbi->output_frame_width_in_tiles_minus_1 = aom_rb_read_literal(rb, 8);
+ pbi->output_frame_height_in_tiles_minus_1 = aom_rb_read_literal(rb, 8);
+ pbi->tile_count_minus_1 = aom_rb_read_literal(rb, 16);
+ if (pbi->tile_count_minus_1 > MAX_TILES - 1) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return 0;
+ }
+
+ // Allocate output frame buffer for the tile list.
+ alloc_tile_list_buffer(pbi);
+
+ uint32_t tile_list_info_bytes = 4;
+ tile_list_payload_size += tile_list_info_bytes;
+ data += tile_list_info_bytes;
+ uint8_t *output = pbi->tile_list_output;
+
+ for (i = 0; i <= pbi->tile_count_minus_1; i++) {
+ // Process 1 tile.
+ // Reset the bit reader.
+ rb->bit_offset = 0;
+ rb->bit_buffer = data;
+
+ // Read out the tile info.
+ uint32_t tile_info_bytes = 5;
+ // Set reference for each tile.
+ int ref_idx = aom_rb_read_literal(rb, 8);
+ if (ref_idx >= MAX_EXTERNAL_REFERENCES) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return 0;
+ }
+ av1_set_reference_dec(cm, 0, 1, &pbi->ext_refs.refs[ref_idx]);
+
+ pbi->dec_tile_row = aom_rb_read_literal(rb, 8);
+ pbi->dec_tile_col = aom_rb_read_literal(rb, 8);
+ if (pbi->dec_tile_row < 0 || pbi->dec_tile_col < 0 ||
+ pbi->dec_tile_row >= cm->tile_rows ||
+ pbi->dec_tile_col >= cm->tile_cols) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return 0;
+ }
+
+ pbi->coded_tile_data_size = aom_rb_read_literal(rb, 16) + 1;
+ data += tile_info_bytes;
+ if ((size_t)(data_end - data) < pbi->coded_tile_data_size) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return 0;
+ }
+
+ av1_decode_tg_tiles_and_wrapup(pbi, data, data + pbi->coded_tile_data_size,
+ p_data_end, start_tile, end_tile, 0);
+ uint32_t tile_payload_size = (uint32_t)(*p_data_end - data);
+
+ tile_list_payload_size += tile_info_bytes + tile_payload_size;
+
+ // Update data ptr for next tile decoding.
+ data = *p_data_end;
+ assert(data <= data_end);
+
+ // Copy the decoded tile to the tile list output buffer.
+ copy_decoded_tile_to_tile_list_buffer(pbi, &output);
+ }
+
+ *frame_decoding_finished = 1;
+ return tile_list_payload_size;
+}
+
+static void read_metadata_itut_t35(const uint8_t *data, size_t sz) {
+ struct aom_read_bit_buffer rb = { data, data + sz, 0, NULL, NULL };
+ for (size_t i = 0; i < sz; i++) {
+ aom_rb_read_literal(&rb, 8);
+ }
+}
+
+static void read_metadata_hdr_cll(const uint8_t *data, size_t sz) {
+ struct aom_read_bit_buffer rb = { data, data + sz, 0, NULL, NULL };
+ aom_rb_read_literal(&rb, 16); // max_cll
+ aom_rb_read_literal(&rb, 16); // max_fall
+}
+
+static void read_metadata_hdr_mdcv(const uint8_t *data, size_t sz) {
+ struct aom_read_bit_buffer rb = { data, data + sz, 0, NULL, NULL };
+ for (int i = 0; i < 3; i++) {
+ aom_rb_read_literal(&rb, 16); // primary_i_chromaticity_x
+ aom_rb_read_literal(&rb, 16); // primary_i_chromaticity_y
+ }
+
+ aom_rb_read_literal(&rb, 16); // white_point_chromaticity_x
+ aom_rb_read_literal(&rb, 16); // white_point_chromaticity_y
+
+ aom_rb_read_unsigned_literal(&rb, 32); // luminance_max
+ aom_rb_read_unsigned_literal(&rb, 32); // luminance_min
+}
+
+static void scalability_structure(struct aom_read_bit_buffer *rb) {
+ int spatial_layers_cnt = aom_rb_read_literal(rb, 2);
+ int spatial_layer_dimensions_present_flag = aom_rb_read_bit(rb);
+ int spatial_layer_description_present_flag = aom_rb_read_bit(rb);
+ int temporal_group_description_present_flag = aom_rb_read_bit(rb);
+ aom_rb_read_literal(rb, 3); // reserved
+
+ if (spatial_layer_dimensions_present_flag) {
+ int i;
+ for (i = 0; i < spatial_layers_cnt + 1; i++) {
+ aom_rb_read_literal(rb, 16);
+ aom_rb_read_literal(rb, 16);
+ }
+ }
+ if (spatial_layer_description_present_flag) {
+ int i;
+ for (i = 0; i < spatial_layers_cnt + 1; i++) {
+ aom_rb_read_literal(rb, 8);
+ }
+ }
+ if (temporal_group_description_present_flag) {
+ int i, j, temporal_group_size;
+ temporal_group_size = aom_rb_read_literal(rb, 8);
+ for (i = 0; i < temporal_group_size; i++) {
+ aom_rb_read_literal(rb, 3);
+ aom_rb_read_bit(rb);
+ aom_rb_read_bit(rb);
+ int temporal_group_ref_cnt = aom_rb_read_literal(rb, 3);
+ for (j = 0; j < temporal_group_ref_cnt; j++) {
+ aom_rb_read_literal(rb, 8);
+ }
+ }
+ }
+}
+
+static void read_metadata_scalability(const uint8_t *data, size_t sz) {
+ struct aom_read_bit_buffer rb = { data, data + sz, 0, NULL, NULL };
+ int scalability_mode_idc = aom_rb_read_literal(&rb, 8);
+ if (scalability_mode_idc == SCALABILITY_SS) {
+ scalability_structure(&rb);
+ }
+}
+
+static void read_metadata_timecode(const uint8_t *data, size_t sz) {
+ struct aom_read_bit_buffer rb = { data, data + sz, 0, NULL, NULL };
+ aom_rb_read_literal(&rb, 5); // counting_type f(5)
+ int full_timestamp_flag = aom_rb_read_bit(&rb); // full_timestamp_flag f(1)
+ aom_rb_read_bit(&rb); // discontinuity_flag (f1)
+ aom_rb_read_bit(&rb); // cnt_dropped_flag f(1)
+ aom_rb_read_literal(&rb, 9); // n_frames f(9)
+ if (full_timestamp_flag) {
+ aom_rb_read_literal(&rb, 6); // seconds_value f(6)
+ aom_rb_read_literal(&rb, 6); // minutes_value f(6)
+ aom_rb_read_literal(&rb, 5); // hours_value f(5)
+ } else {
+ int seconds_flag = aom_rb_read_bit(&rb); // seconds_flag f(1)
+ if (seconds_flag) {
+ aom_rb_read_literal(&rb, 6); // seconds_value f(6)
+ int minutes_flag = aom_rb_read_bit(&rb); // minutes_flag f(1)
+ if (minutes_flag) {
+ aom_rb_read_literal(&rb, 6); // minutes_value f(6)
+ int hours_flag = aom_rb_read_bit(&rb); // hours_flag f(1)
+ if (hours_flag) {
+ aom_rb_read_literal(&rb, 5); // hours_value f(5)
+ }
+ }
+ }
+ }
+ // time_offset_length f(5)
+ int time_offset_length = aom_rb_read_literal(&rb, 5);
+ if (time_offset_length) {
+ aom_rb_read_literal(&rb, time_offset_length); // f(time_offset_length)
+ }
+}
+
+static size_t read_metadata(const uint8_t *data, size_t sz) {
+ size_t type_length;
+ uint64_t type_value;
+ OBU_METADATA_TYPE metadata_type;
+ if (aom_uleb_decode(data, sz, &type_value, &type_length) < 0) {
+ return sz;
+ }
+ metadata_type = (OBU_METADATA_TYPE)type_value;
+ if (metadata_type == OBU_METADATA_TYPE_ITUT_T35) {
+ read_metadata_itut_t35(data + type_length, sz - type_length);
+ } else if (metadata_type == OBU_METADATA_TYPE_HDR_CLL) {
+ read_metadata_hdr_cll(data + type_length, sz - type_length);
+ } else if (metadata_type == OBU_METADATA_TYPE_HDR_MDCV) {
+ read_metadata_hdr_mdcv(data + type_length, sz - type_length);
+ } else if (metadata_type == OBU_METADATA_TYPE_SCALABILITY) {
+ read_metadata_scalability(data + type_length, sz - type_length);
+ } else if (metadata_type == OBU_METADATA_TYPE_TIMECODE) {
+ read_metadata_timecode(data + type_length, sz - type_length);
+ }
+
+ return sz;
+}
+
+// On success, returns a boolean that indicates whether the decoding of the
+// current frame is finished. On failure, sets cm->error.error_code and
+// returns -1.
+int aom_decode_frame_from_obus(struct AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end,
+ const uint8_t **p_data_end) {
+ AV1_COMMON *const cm = &pbi->common;
+ int frame_decoding_finished = 0;
+ int is_first_tg_obu_received = 1;
+ uint32_t frame_header_size = 0;
+ ObuHeader obu_header;
+ memset(&obu_header, 0, sizeof(obu_header));
+ pbi->seen_frame_header = 0;
+
+ if (data_end < data) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+
+ // Reset pbi->camera_frame_header_ready to 0 if cm->large_scale_tile = 0.
+ if (!cm->large_scale_tile) pbi->camera_frame_header_ready = 0;
+
+ // decode frame as a series of OBUs
+ while (!frame_decoding_finished && !cm->error.error_code) {
+ struct aom_read_bit_buffer rb;
+ size_t payload_size = 0;
+ size_t decoded_payload_size = 0;
+ size_t obu_payload_offset = 0;
+ size_t bytes_read = 0;
+ const size_t bytes_available = data_end - data;
+
+ if (bytes_available == 0 && !pbi->seen_frame_header) {
+ *p_data_end = data;
+ cm->error.error_code = AOM_CODEC_OK;
+ break;
+ }
+
+ aom_codec_err_t status =
+ aom_read_obu_header_and_size(data, bytes_available, cm->is_annexb,
+ &obu_header, &payload_size, &bytes_read);
+
+ if (status != AOM_CODEC_OK) {
+ cm->error.error_code = status;
+ return -1;
+ }
+
+ // Record obu size header information.
+ pbi->obu_size_hdr.data = data + obu_header.size;
+ pbi->obu_size_hdr.size = bytes_read - obu_header.size;
+
+ // Note: aom_read_obu_header_and_size() takes care of checking that this
+ // doesn't cause 'data' to advance past 'data_end'.
+ data += bytes_read;
+
+ if ((size_t)(data_end - data) < payload_size) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+
+ cm->temporal_layer_id = obu_header.temporal_layer_id;
+ cm->spatial_layer_id = obu_header.spatial_layer_id;
+
+ if (obu_header.type != OBU_TEMPORAL_DELIMITER &&
+ obu_header.type != OBU_SEQUENCE_HEADER &&
+ obu_header.type != OBU_PADDING) {
+ // don't decode obu if it's not in current operating mode
+ if (!is_obu_in_current_operating_point(pbi, obu_header)) {
+ data += payload_size;
+ continue;
+ }
+ }
+
+ av1_init_read_bit_buffer(pbi, &rb, data, data + payload_size);
+
+ switch (obu_header.type) {
+ case OBU_TEMPORAL_DELIMITER:
+ decoded_payload_size = read_temporal_delimiter_obu();
+ pbi->seen_frame_header = 0;
+ break;
+ case OBU_SEQUENCE_HEADER:
+ decoded_payload_size = read_sequence_header_obu(pbi, &rb);
+ if (cm->error.error_code != AOM_CODEC_OK) return -1;
+ break;
+ case OBU_FRAME_HEADER:
+ case OBU_REDUNDANT_FRAME_HEADER:
+ case OBU_FRAME:
+ // Only decode first frame header received
+ if (!pbi->seen_frame_header ||
+ (cm->large_scale_tile && !pbi->camera_frame_header_ready)) {
+ frame_header_size = read_frame_header_obu(
+ pbi, &rb, data, p_data_end, obu_header.type != OBU_FRAME);
+ pbi->seen_frame_header = 1;
+ if (!pbi->ext_tile_debug && cm->large_scale_tile)
+ pbi->camera_frame_header_ready = 1;
+ } else {
+ // TODO(wtc): Verify that the frame_header_obu is identical to the
+ // original frame_header_obu. For now just skip frame_header_size
+ // bytes in the bit buffer.
+ if (frame_header_size > payload_size) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ assert(rb.bit_offset == 0);
+ rb.bit_offset = 8 * frame_header_size;
+ }
+
+ decoded_payload_size = frame_header_size;
+ pbi->frame_header_size = frame_header_size;
+
+ if (cm->show_existing_frame) {
+ if (obu_header.type == OBU_FRAME) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return -1;
+ }
+ frame_decoding_finished = 1;
+ pbi->seen_frame_header = 0;
+ break;
+ }
+
+ // In large scale tile coding, decode the common camera frame header
+ // before any tile list OBU.
+ if (!pbi->ext_tile_debug && pbi->camera_frame_header_ready) {
+ frame_decoding_finished = 1;
+ // Skip the rest of the frame data.
+ decoded_payload_size = payload_size;
+ // Update data_end.
+ *p_data_end = data_end;
+ break;
+ }
+
+ if (obu_header.type != OBU_FRAME) break;
+ obu_payload_offset = frame_header_size;
+ // Byte align the reader before reading the tile group.
+ if (byte_alignment(cm, &rb)) return -1;
+ AOM_FALLTHROUGH_INTENDED; // fall through to read tile group.
+ case OBU_TILE_GROUP:
+ if (!pbi->seen_frame_header) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ if (obu_payload_offset > payload_size) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ decoded_payload_size += read_one_tile_group_obu(
+ pbi, &rb, is_first_tg_obu_received, data + obu_payload_offset,
+ data + payload_size, p_data_end, &frame_decoding_finished,
+ obu_header.type == OBU_FRAME);
+ is_first_tg_obu_received = 0;
+ if (frame_decoding_finished) pbi->seen_frame_header = 0;
+ break;
+ case OBU_METADATA:
+ decoded_payload_size = read_metadata(data, payload_size);
+ break;
+ case OBU_TILE_LIST:
+ if (CONFIG_NORMAL_TILE_MODE) {
+ cm->error.error_code = AOM_CODEC_UNSUP_BITSTREAM;
+ return -1;
+ }
+
+ // This OBU type is purely for the large scale tile coding mode.
+ // The common camera frame header has to be already decoded.
+ if (!pbi->camera_frame_header_ready) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+
+ cm->large_scale_tile = 1;
+ av1_set_single_tile_decoding_mode(cm);
+ decoded_payload_size =
+ read_and_decode_one_tile_list(pbi, &rb, data, data + payload_size,
+ p_data_end, &frame_decoding_finished);
+ if (cm->error.error_code != AOM_CODEC_OK) return -1;
+ break;
+ case OBU_PADDING:
+ default:
+ // Skip unrecognized OBUs
+ decoded_payload_size = payload_size;
+ break;
+ }
+
+ // Check that the signalled OBU size matches the actual amount of data read
+ if (decoded_payload_size > payload_size) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+
+ // If there are extra padding bytes, they should all be zero
+ while (decoded_payload_size < payload_size) {
+ uint8_t padding_byte = data[decoded_payload_size++];
+ if (padding_byte != 0) {
+ cm->error.error_code = AOM_CODEC_CORRUPT_FRAME;
+ return -1;
+ }
+ }
+
+ data += payload_size;
+ }
+
+ return frame_decoding_finished;
+}
diff --git a/third_party/aom/av1/decoder/obu.h b/third_party/aom/av1/decoder/obu.h
new file mode 100644
index 000000000..5ab243fc9
--- /dev/null
+++ b/third_party/aom/av1/decoder/obu.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 AOM_AV1_DECODER_OBU_H_
+#define AOM_AV1_DECODER_OBU_H_
+
+#include "aom/aom_codec.h"
+#include "av1/decoder/decoder.h"
+
+// Try to decode one frame from a buffer.
+// Returns 1 if we decoded a frame,
+// 0 if we didn't decode a frame but that's okay
+// (eg, if there was a frame but we skipped it),
+// or -1 on error
+int aom_decode_frame_from_obus(struct AV1Decoder *pbi, const uint8_t *data,
+ const uint8_t *data_end,
+ const uint8_t **p_data_end);
+
+aom_codec_err_t aom_get_num_layers_from_operating_point_idc(
+ int operating_point_idc, unsigned int *num_spatial_layers,
+ unsigned int *num_temporal_layers);
+
+#endif // AOM_AV1_DECODER_OBU_H_
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