зеркало из https://github.com/mozilla/gecko-dev.git
137 строки
4.2 KiB
C
137 строки
4.2 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_DECODER_VP9_DECODER_H_
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#define VP9_DECODER_VP9_DECODER_H_
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#include "./vpx_config.h"
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#include "vpx/vpx_codec.h"
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#include "vpx_scale/yv12config.h"
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#include "vp9/common/vp9_thread_common.h"
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#include "vp9/common/vp9_onyxc_int.h"
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#include "vp9/common/vp9_ppflags.h"
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#include "vp9/common/vp9_thread.h"
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#include "vp9/decoder/vp9_dthread.h"
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#include "vp9/decoder/vp9_reader.h"
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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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VP9_COMMON *cm;
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vp9_reader bit_reader;
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DECLARE_ALIGNED(16, MACROBLOCKD, xd);
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} TileData;
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typedef struct TileWorkerData {
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struct VP9Decoder *pbi;
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vp9_reader bit_reader;
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FRAME_COUNTS counts;
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DECLARE_ALIGNED(16, MACROBLOCKD, xd);
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struct vpx_internal_error_info error_info;
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} TileWorkerData;
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typedef struct VP9Decoder {
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DECLARE_ALIGNED(16, MACROBLOCKD, mb);
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DECLARE_ALIGNED(16, VP9_COMMON, common);
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int ready_for_new_data;
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int refresh_frame_flags;
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int frame_parallel_decode; // frame-based threading.
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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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VP9Worker *frame_worker_owner; // frame_worker that owns this pbi.
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VP9Worker lf_worker;
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VP9Worker *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 total_tiles;
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VP9LfSync lf_row_sync;
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vpx_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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} VP9Decoder;
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int vp9_receive_compressed_data(struct VP9Decoder *pbi,
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size_t size, const uint8_t **dest);
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int vp9_get_raw_frame(struct VP9Decoder *pbi, YV12_BUFFER_CONFIG *sd,
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vp9_ppflags_t *flags);
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vpx_codec_err_t vp9_copy_reference_dec(struct VP9Decoder *pbi,
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VP9_REFFRAME ref_frame_flag,
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YV12_BUFFER_CONFIG *sd);
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vpx_codec_err_t vp9_set_reference_dec(VP9_COMMON *cm,
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VP9_REFFRAME ref_frame_flag,
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YV12_BUFFER_CONFIG *sd);
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static INLINE uint8_t read_marker(vpx_decrypt_cb decrypt_cb,
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void *decrypt_state,
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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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vpx_codec_err_t vp9_parse_superframe_index(const uint8_t *data,
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size_t data_sz,
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uint32_t sizes[8], int *count,
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vpx_decrypt_cb decrypt_cb,
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void *decrypt_state);
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struct VP9Decoder *vp9_decoder_create(BufferPool *const pool);
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void vp9_decoder_remove(struct VP9Decoder *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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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_DECODER_VP9_DECODER_H_
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