/* *  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 VP9_DECODER_VP9_DECODER_H_#define 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/decoder/vp9_dthread.h" #ifdef __cplusplusextern "C" {#endif 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;  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]);  struct vpx_internal_error_info error_info;} TileWorkerData; typedef struct VP9Decoder {  DECLARE_ALIGNED(16, MACROBLOCKD, mb);   DECLARE_ALIGNED(16, VP9_COMMON, common);   int ready_for_new_data;   int refresh_frame_flags;   int frame_parallel_decode;  // frame-based threading.   // TODO(hkuang): Combine this with cur_buf in macroblockd as they are  // the same.  RefCntBuffer *cur_buf;   //  Current decoding frame buffer.   VPxWorker *frame_worker_owner;   // frame_worker that owns this pbi.  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.} VP9Decoder; int vp9_receive_compressed_data(struct VP9Decoder *pbi,                                size_t size, const uint8_t **dest); 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); 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].ref_count == 0 &&        frame_bufs[idx].raw_frame_buffer.priv) {      pool->release_fb_cb(pool->cb_priv, &frame_bufs[idx].raw_frame_buffer);    }  }} #ifdef __cplusplus}  // extern "C"#endif #endif  // VP9_DECODER_VP9_DECODER_H_