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* 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 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
#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"
#include "av1/decoder/accounting.h"
#include "av1/decoder/inspection.h"
#ifdef __cplusplus
extern "C" {
typedef struct ThreadData {
aom_reader *bit_reader;
/* 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;
} ThreadData;
typedef struct TileDataDec {
TileInfo tile_info;
aom_reader bit_reader;
} 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 {
int num;
typedef struct TileJobsDec {
TileBufferDec *tile_buffer;
TileDataDec *tile_data;
} TileJobsDec;
typedef struct AV1DecTileMTData {
pthread_mutex_t *job_mutex;
TileJobsDec *job_queue;
int jobs_enqueued;
int jobs_dequeued;
int alloc_tile_rows;
int alloc_tile_cols;
} AV1DecTileMT;
typedef struct AV1Decoder {
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;
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
int acct_enabled;
Accounting accounting;
size_t uncomp_hdr_size; // Size of the uncompressed header
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;
aom_inspect_cb inspect_cb;
void *inspect_ctx;
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
size_t tile_list_size;
uint8_t *tile_list_output;
size_t buffer_sz;
} AV1Decoder;
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,
aom_codec_err_t av1_set_reference_dec(AV1_COMMON *cm, int idx,
int use_external_ref,
aom_codec_err_t av1_copy_new_frame_dec(AV1_COMMON *cm,
YV12_BUFFER_CONFIG *new_frame,
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);
static INLINE void decrease_ref_count(int idx, RefCntBuffer *const frame_bufs,
BufferPool *const pool) {
if (idx >= 0) {
// 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);
static INLINE int dec_is_ref_frame_buf(AV1Decoder *const pbi,
RefCntBuffer *frame_buf) {
AV1_COMMON *const cm = &pbi->common;
int i;
for (i = 0; i < INTER_REFS_PER_FRAME; ++i) {
RefBuffer *const ref_frame = &cm->frame_refs[i];
if (ref_frame->idx == INVALID_IDX) continue;
if (frame_buf == &cm->buffer_pool->frame_bufs[ref_frame->idx]) break;
return (i < INTER_REFS_PER_FRAME);
#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;
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);
#ifdef __cplusplus
} // extern "C"