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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
parent
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commit
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989 changed files with 470949 additions and 0 deletions
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third_party/aom/av1/decoder/decoder.h
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third_party/aom/av1/decoder/decoder.h
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/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AV1_DECODER_DECODER_H_
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#define AV1_DECODER_DECODER_H_
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#include "./aom_config.h"
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#include "aom/aom_codec.h"
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#include "aom_dsp/bitreader.h"
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#include "aom_scale/yv12config.h"
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#include "aom_util/aom_thread.h"
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#include "av1/common/thread_common.h"
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#include "av1/common/onyxc_int.h"
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#include "av1/decoder/dthread.h"
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#if CONFIG_ACCOUNTING
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#include "av1/decoder/accounting.h"
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#endif
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#if CONFIG_INSPECTION
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#include "av1/decoder/inspection.h"
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#endif
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#if CONFIG_PVQ
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#include "aom_dsp/entdec.h"
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#include "av1/decoder/decint.h"
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#include "av1/encoder/encodemb.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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// TODO(hkuang): combine this with TileWorkerData.
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typedef struct TileData {
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AV1_COMMON *cm;
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aom_reader bit_reader;
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DECLARE_ALIGNED(16, MACROBLOCKD, xd);
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/* dqcoeff are shared by all the planes. So planes must be decoded serially */
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DECLARE_ALIGNED(16, tran_low_t, dqcoeff[MAX_TX_SQUARE]);
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#if CONFIG_PVQ
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/* forward transformed predicted image, a reference for PVQ */
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DECLARE_ALIGNED(16, tran_low_t, pvq_ref_coeff[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
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#endif
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#if CONFIG_CFL
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CFL_CTX cfl;
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#endif
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#if CONFIG_EC_ADAPT
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DECLARE_ALIGNED(16, FRAME_CONTEXT, tctx);
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#endif
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#if CONFIG_PALETTE
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DECLARE_ALIGNED(16, uint8_t, color_index_map[2][MAX_SB_SQUARE]);
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#endif // CONFIG_PALETTE
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} TileData;
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typedef struct TileWorkerData {
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struct AV1Decoder *pbi;
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aom_reader bit_reader;
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FRAME_COUNTS counts;
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DECLARE_ALIGNED(16, MACROBLOCKD, xd);
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/* dqcoeff are shared by all the planes. So planes must be decoded serially */
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DECLARE_ALIGNED(16, tran_low_t, dqcoeff[MAX_TX_SQUARE]);
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#if CONFIG_PVQ
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/* forward transformed predicted image, a reference for PVQ */
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DECLARE_ALIGNED(16, tran_low_t, pvq_ref_coeff[OD_TXSIZE_MAX * OD_TXSIZE_MAX]);
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#endif
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#if CONFIG_CFL
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CFL_CTX cfl;
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#endif
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#if CONFIG_EC_ADAPT
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FRAME_CONTEXT tctx;
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#endif
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#if CONFIG_PALETTE
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DECLARE_ALIGNED(16, uint8_t, color_index_map[2][MAX_SB_SQUARE]);
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#endif // CONFIG_PALETTE
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struct aom_internal_error_info error_info;
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} TileWorkerData;
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typedef struct TileBufferDec {
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const uint8_t *data;
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size_t size;
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const uint8_t *raw_data_end; // The end of the raw tile buffer in the
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// bit stream.
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int col; // only used with multi-threaded decoding
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} TileBufferDec;
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typedef struct AV1Decoder {
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DECLARE_ALIGNED(16, MACROBLOCKD, mb);
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DECLARE_ALIGNED(16, AV1_COMMON, common);
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int ready_for_new_data;
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int refresh_frame_flags;
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// TODO(hkuang): Combine this with cur_buf in macroblockd as they are
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// the same.
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RefCntBuffer *cur_buf; // Current decoding frame buffer.
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AVxWorker *frame_worker_owner; // frame_worker that owns this pbi.
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AVxWorker lf_worker;
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AVxWorker *tile_workers;
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TileWorkerData *tile_worker_data;
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TileInfo *tile_worker_info;
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int num_tile_workers;
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TileData *tile_data;
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int allocated_tiles;
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TileBufferDec tile_buffers[MAX_TILE_ROWS][MAX_TILE_COLS];
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AV1LfSync lf_row_sync;
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aom_decrypt_cb decrypt_cb;
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void *decrypt_state;
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int max_threads;
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int inv_tile_order;
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int need_resync; // wait for key/intra-only frame.
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int hold_ref_buf; // hold the reference buffer.
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int tile_size_bytes;
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#if CONFIG_EXT_TILE
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int tile_col_size_bytes;
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int dec_tile_row, dec_tile_col;
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#endif // CONFIG_EXT_TILE
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#if CONFIG_ACCOUNTING
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int acct_enabled;
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Accounting accounting;
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#endif
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size_t uncomp_hdr_size; // Size of the uncompressed header
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size_t first_partition_size; // Size of the compressed header
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#if CONFIG_TILE_GROUPS
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int tg_size; // Number of tiles in the current tilegroup
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int tg_start; // First tile in the current tilegroup
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int tg_size_bit_offset;
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#endif
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#if CONFIG_REFERENCE_BUFFER
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SequenceHeader seq_params;
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#endif
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#if CONFIG_INSPECTION
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aom_inspect_cb inspect_cb;
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void *inspect_ctx;
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#endif
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} AV1Decoder;
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int av1_receive_compressed_data(struct AV1Decoder *pbi, size_t size,
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const uint8_t **dest);
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int av1_get_raw_frame(struct AV1Decoder *pbi, YV12_BUFFER_CONFIG *sd);
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int av1_get_frame_to_show(struct AV1Decoder *pbi, YV12_BUFFER_CONFIG *frame);
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aom_codec_err_t av1_copy_reference_dec(struct AV1Decoder *pbi,
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AOM_REFFRAME ref_frame_flag,
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YV12_BUFFER_CONFIG *sd);
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aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm,
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AOM_REFFRAME ref_frame_flag,
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YV12_BUFFER_CONFIG *sd);
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static INLINE uint8_t read_marker(aom_decrypt_cb decrypt_cb,
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void *decrypt_state, const uint8_t *data) {
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if (decrypt_cb) {
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uint8_t marker;
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decrypt_cb(decrypt_state, data, &marker, 1);
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return marker;
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}
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return *data;
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}
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// This function is exposed for use in tests, as well as the inlined function
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// "read_marker".
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aom_codec_err_t av1_parse_superframe_index(const uint8_t *data, size_t data_sz,
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uint32_t sizes[8], int *count,
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aom_decrypt_cb decrypt_cb,
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void *decrypt_state);
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struct AV1Decoder *av1_decoder_create(BufferPool *const pool);
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void av1_decoder_remove(struct AV1Decoder *pbi);
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static INLINE void decrease_ref_count(int idx, RefCntBuffer *const frame_bufs,
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BufferPool *const pool) {
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if (idx >= 0) {
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--frame_bufs[idx].ref_count;
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// A worker may only get a free framebuffer index when calling get_free_fb.
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// But the private buffer is not set up until finish decoding header.
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// So any error happens during decoding header, the frame_bufs will not
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// have valid priv buffer.
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if (frame_bufs[idx].ref_count == 0 &&
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frame_bufs[idx].raw_frame_buffer.priv) {
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pool->release_fb_cb(pool->cb_priv, &frame_bufs[idx].raw_frame_buffer);
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}
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}
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}
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#if CONFIG_EXT_REFS
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static INLINE int dec_is_ref_frame_buf(AV1Decoder *const pbi,
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RefCntBuffer *frame_buf) {
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AV1_COMMON *const cm = &pbi->common;
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int i;
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for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
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RefBuffer *const ref_frame = &cm->frame_refs[i];
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if (ref_frame->idx == INVALID_IDX) continue;
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if (frame_buf == &cm->buffer_pool->frame_bufs[ref_frame->idx]) break;
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}
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return (i < INTER_REFS_PER_FRAME);
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}
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#endif // CONFIG_EXT_REFS
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_DECODER_DECODER_H_
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