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Diffstat (limited to 'third_party/aom/av1/decoder/decoder.h')
| -rw-r--r-- | third_party/aom/av1/decoder/decoder.h | 317 |
1 files changed, 317 insertions, 0 deletions
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_ |