From 68569dee1416593955c1570d638b3d9250b33012 Mon Sep 17 00:00:00 2001 From: trav90 Date: Mon, 15 Oct 2018 21:45:30 -0500 Subject: Import aom library This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36. --- third_party/aom/aom_dsp/daalaboolreader.h | 164 ++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 third_party/aom/aom_dsp/daalaboolreader.h (limited to 'third_party/aom/aom_dsp/daalaboolreader.h') diff --git a/third_party/aom/aom_dsp/daalaboolreader.h b/third_party/aom/aom_dsp/daalaboolreader.h new file mode 100644 index 000000000..428d74db0 --- /dev/null +++ b/third_party/aom/aom_dsp/daalaboolreader.h @@ -0,0 +1,164 @@ +/* + * 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_DSP_DAALABOOLREADER_H_ +#define AOM_DSP_DAALABOOLREADER_H_ + +#include "aom/aom_integer.h" +#include "aom_dsp/entdec.h" +#include "aom_dsp/prob.h" +#if CONFIG_ACCOUNTING +#include "av1/decoder/accounting.h" +#endif +#if CONFIG_BITSTREAM_DEBUG +#include +#include "aom_util/debug_util.h" +#endif // CONFIG_BITSTREAM_DEBUG + +#ifdef __cplusplus +extern "C" { +#endif + +struct daala_reader { + const uint8_t *buffer; + const uint8_t *buffer_end; + od_ec_dec ec; +#if CONFIG_ACCOUNTING + Accounting *accounting; +#endif +}; + +typedef struct daala_reader daala_reader; + +int aom_daala_reader_init(daala_reader *r, const uint8_t *buffer, int size); +const uint8_t *aom_daala_reader_find_end(daala_reader *r); +uint32_t aom_daala_reader_tell(const daala_reader *r); +uint32_t aom_daala_reader_tell_frac(const daala_reader *r); + +static INLINE int aom_daala_read(daala_reader *r, int prob) { + int bit; +#if CONFIG_EC_SMALLMUL + int p = (0x7FFFFF - (prob << 15) + prob) >> 8; +#else + int p = ((prob << 15) + 256 - prob) >> 8; +#endif +#if CONFIG_BITSTREAM_DEBUG +/*{ + const int queue_r = bitstream_queue_get_read(); + const int frame_idx = bitstream_queue_get_frame_read(); + if (frame_idx == 0 && queue_r == 0) { + fprintf(stderr, "\n *** bitstream queue at frame_idx_r %d queue_r %d\n", + frame_idx, queue_r); + } +}*/ +#endif + + bit = od_ec_decode_bool_q15(&r->ec, p); + +#if CONFIG_BITSTREAM_DEBUG + { + int i; + int ref_bit, ref_nsymbs; + aom_cdf_prob ref_cdf[16]; + const int queue_r = bitstream_queue_get_read(); + const int frame_idx = bitstream_queue_get_frame_read(); + bitstream_queue_pop(&ref_bit, ref_cdf, &ref_nsymbs); + if (ref_nsymbs != 2) { + fprintf(stderr, + "\n *** [bit] nsymbs error, frame_idx_r %d nsymbs %d ref_nsymbs " + "%d queue_r %d\n", + frame_idx, 2, ref_nsymbs, queue_r); + assert(0); + } + if ((ref_nsymbs != 2) || (ref_cdf[0] != (aom_cdf_prob)p) || + (ref_cdf[1] != 32767)) { + fprintf(stderr, + "\n *** [bit] cdf error, frame_idx_r %d cdf {%d, %d} ref_cdf {%d", + frame_idx, p, 32767, ref_cdf[0]); + for (i = 1; i < ref_nsymbs; ++i) fprintf(stderr, ", %d", ref_cdf[i]); + fprintf(stderr, "} queue_r %d\n", queue_r); + assert(0); + } + if (bit != ref_bit) { + fprintf(stderr, + "\n *** [bit] symb error, frame_idx_r %d symb %d ref_symb %d " + "queue_r %d\n", + frame_idx, bit, ref_bit, queue_r); + assert(0); + } + } +#endif + + return bit; +} + +#if CONFIG_RAWBITS +static INLINE int aom_daala_read_bit(daala_reader *r) { + return od_ec_dec_bits(&r->ec, 1, "aom_bits"); +} +#endif + +static INLINE int aom_daala_reader_has_error(daala_reader *r) { + return r->ec.error; +} + +static INLINE int daala_read_symbol(daala_reader *r, const aom_cdf_prob *cdf, + int nsymbs) { + int symb; + symb = od_ec_decode_cdf_q15(&r->ec, cdf, nsymbs); + +#if CONFIG_BITSTREAM_DEBUG + { + int i; + int cdf_error = 0; + int ref_symb, ref_nsymbs; + aom_cdf_prob ref_cdf[16]; + const int queue_r = bitstream_queue_get_read(); + const int frame_idx = bitstream_queue_get_frame_read(); + bitstream_queue_pop(&ref_symb, ref_cdf, &ref_nsymbs); + if (nsymbs != ref_nsymbs) { + fprintf(stderr, + "\n *** nsymbs error, frame_idx_r %d nsymbs %d ref_nsymbs %d " + "queue_r %d\n", + frame_idx, nsymbs, ref_nsymbs, queue_r); + cdf_error = 0; + assert(0); + } else { + for (i = 0; i < nsymbs; ++i) + if (cdf[i] != ref_cdf[i]) cdf_error = 1; + } + if (cdf_error) { + fprintf(stderr, "\n *** cdf error, frame_idx_r %d cdf {%d", frame_idx, + cdf[0]); + for (i = 1; i < nsymbs; ++i) fprintf(stderr, ", %d", cdf[i]); + fprintf(stderr, "} ref_cdf {%d", ref_cdf[0]); + for (i = 1; i < ref_nsymbs; ++i) fprintf(stderr, ", %d", ref_cdf[i]); + fprintf(stderr, "} queue_r %d\n", queue_r); + assert(0); + } + if (symb != ref_symb) { + fprintf( + stderr, + "\n *** symb error, frame_idx_r %d symb %d ref_symb %d queue_r %d\n", + frame_idx, symb, ref_symb, queue_r); + assert(0); + } + } +#endif + + return symb; +} + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif -- cgit v1.2.3