ref: 59c9e1d87ef33bc82fca82cfcf5202d4b86c92e7
dir: /vp9/decoder/vp9_decoder.h/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VPX_VP9_DECODER_VP9_DECODER_H_
#define VPX_VP9_DECODER_VP9_DECODER_H_
#include "./vpx_config.h"
#include "vpx/vpx_codec.h"
#include "vpx_dsp/bitreader.h"
#include "vpx_scale/yv12config.h"
#include "vpx_util/vpx_thread.h"
#include "vp9/common/vp9_thread_common.h"
#include "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_ppflags.h"
#include "./vp9_job_queue.h"
#ifdef __cplusplus
extern "C" {
#endif
#define EOBS_PER_SB_LOG2 8
#define DQCOEFFS_PER_SB_LOG2 12
#define PARTITIONS_PER_SB 85
typedef enum JobType { PARSE_JOB, RECON_JOB, LPF_JOB } JobType;
typedef struct ThreadData {
struct VP9Decoder *pbi;
LFWorkerData *lf_data;
VP9LfSync *lf_sync;
} ThreadData;
typedef struct TileBuffer {
const uint8_t *data;
size_t size;
int col; // only used with multi-threaded decoding
} TileBuffer;
typedef struct TileWorkerData {
const uint8_t *data_end;
int buf_start, buf_end; // pbi->tile_buffers to decode, inclusive
vpx_reader bit_reader;
FRAME_COUNTS counts;
LFWorkerData *lf_data;
VP9LfSync *lf_sync;
DECLARE_ALIGNED(16, MACROBLOCKD, xd);
/* dqcoeff are shared by all the planes. So planes must be decoded serially */
DECLARE_ALIGNED(16, tran_low_t, dqcoeff[32 * 32]);
DECLARE_ALIGNED(16, uint16_t, extend_and_predict_buf[80 * 2 * 80 * 2]);
struct vpx_internal_error_info error_info;
} TileWorkerData;
typedef void (*process_block_fn_t)(TileWorkerData *twd,
struct VP9Decoder *const pbi, int mi_row,
int mi_col, BLOCK_SIZE bsize, int bwl,
int bhl);
typedef struct RowMTWorkerData {
int num_sbs;
int *eob[MAX_MB_PLANE];
PARTITION_TYPE *partition;
tran_low_t *dqcoeff[MAX_MB_PLANE];
int8_t *recon_map;
const uint8_t *data_end;
uint8_t *jobq_buf;
JobQueueRowMt jobq;
size_t jobq_size;
int num_tiles_done;
int num_jobs;
#if CONFIG_MULTITHREAD
pthread_mutex_t recon_done_mutex;
pthread_mutex_t *recon_sync_mutex;
pthread_cond_t *recon_sync_cond;
#endif
ThreadData *thread_data;
} RowMTWorkerData;
/* Structure to queue and dequeue row decode jobs */
typedef struct Job {
int row_num;
int tile_col;
JobType job_type;
} Job;
typedef struct VP9Decoder {
DECLARE_ALIGNED(16, MACROBLOCKD, mb);
DECLARE_ALIGNED(16, VP9_COMMON, common);
int ready_for_new_data;
int refresh_frame_flags;
// TODO(hkuang): Combine this with cur_buf in macroblockd as they are
// the same.
RefCntBuffer *cur_buf; // Current decoding frame buffer.
VPxWorker lf_worker;
VPxWorker *tile_workers;
TileWorkerData *tile_worker_data;
TileBuffer tile_buffers[64];
int num_tile_workers;
int total_tiles;
VP9LfSync lf_row_sync;
vpx_decrypt_cb decrypt_cb;
void *decrypt_state;
int max_threads;
int inv_tile_order;
int need_resync; // wait for key/intra-only frame.
int hold_ref_buf; // hold the reference buffer.
int row_mt;
int lpf_mt_opt;
RowMTWorkerData *row_mt_worker_data;
} VP9Decoder;
int vp9_receive_compressed_data(struct VP9Decoder *pbi, size_t size,
const uint8_t **psource);
int vp9_get_raw_frame(struct VP9Decoder *pbi, YV12_BUFFER_CONFIG *sd,
vp9_ppflags_t *flags);
vpx_codec_err_t vp9_copy_reference_dec(struct VP9Decoder *pbi,
VP9_REFFRAME ref_frame_flag,
YV12_BUFFER_CONFIG *sd);
vpx_codec_err_t vp9_set_reference_dec(VP9_COMMON *cm,
VP9_REFFRAME ref_frame_flag,
YV12_BUFFER_CONFIG *sd);
static INLINE uint8_t read_marker(vpx_decrypt_cb decrypt_cb,
void *decrypt_state, const uint8_t *data) {
if (decrypt_cb) {
uint8_t marker;
decrypt_cb(decrypt_state, data, &marker, 1);
return marker;
}
return *data;
}
// This function is exposed for use in tests, as well as the inlined function
// "read_marker".
vpx_codec_err_t vp9_parse_superframe_index(const uint8_t *data, size_t data_sz,
uint32_t sizes[8], int *count,
vpx_decrypt_cb decrypt_cb,
void *decrypt_state);
struct VP9Decoder *vp9_decoder_create(BufferPool *const pool);
void vp9_decoder_remove(struct VP9Decoder *pbi);
void vp9_dec_alloc_row_mt_mem(RowMTWorkerData *row_mt_worker_data,
VP9_COMMON *cm, int num_sbs, int max_threads,
int num_jobs);
void vp9_dec_free_row_mt_mem(RowMTWorkerData *row_mt_worker_data);
static INLINE void decrease_ref_count(int idx, RefCntBuffer *const frame_bufs,
BufferPool *const pool) {
if (idx >= 0 && frame_bufs[idx].ref_count > 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].released && 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);
frame_bufs[idx].released = 1;
}
}
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_VP9_DECODER_VP9_DECODER_H_