示例#1
0
文件: dthread.c 项目: jmvalin/aom
void vp10_frameworker_copy_context(VPxWorker *const dst_worker,
                                   VPxWorker *const src_worker) {
#if CONFIG_MULTITHREAD
  FrameWorkerData *const src_worker_data = (FrameWorkerData *)src_worker->data1;
  FrameWorkerData *const dst_worker_data = (FrameWorkerData *)dst_worker->data1;
  VP10_COMMON *const src_cm = &src_worker_data->pbi->common;
  VP10_COMMON *const dst_cm = &dst_worker_data->pbi->common;
  int i;

  // Wait until source frame's context is ready.
  vp10_frameworker_lock_stats(src_worker);
  while (!src_worker_data->frame_context_ready) {
    pthread_cond_wait(&src_worker_data->stats_cond,
                      &src_worker_data->stats_mutex);
  }

  dst_cm->last_frame_seg_map = src_cm->seg.enabled
                                   ? src_cm->current_frame_seg_map
                                   : src_cm->last_frame_seg_map;
  dst_worker_data->pbi->need_resync = src_worker_data->pbi->need_resync;
  vp10_frameworker_unlock_stats(src_worker);

  dst_cm->bit_depth = src_cm->bit_depth;
#if CONFIG_VPX_HIGHBITDEPTH
  dst_cm->use_highbitdepth = src_cm->use_highbitdepth;
#endif
  dst_cm->prev_frame =
      src_cm->show_existing_frame ? src_cm->prev_frame : src_cm->cur_frame;
  dst_cm->last_width =
      !src_cm->show_existing_frame ? src_cm->width : src_cm->last_width;
  dst_cm->last_height =
      !src_cm->show_existing_frame ? src_cm->height : src_cm->last_height;
  dst_cm->subsampling_x = src_cm->subsampling_x;
  dst_cm->subsampling_y = src_cm->subsampling_y;
  dst_cm->frame_type = src_cm->frame_type;
  dst_cm->last_show_frame = !src_cm->show_existing_frame
                                ? src_cm->show_frame
                                : src_cm->last_show_frame;
  for (i = 0; i < REF_FRAMES; ++i)
    dst_cm->ref_frame_map[i] = src_cm->next_ref_frame_map[i];

  memcpy(dst_cm->lf_info.lfthr, src_cm->lf_info.lfthr,
         (MAX_LOOP_FILTER + 1) * sizeof(loop_filter_thresh));
  dst_cm->lf.last_sharpness_level = src_cm->lf.sharpness_level;
  dst_cm->lf.filter_level = src_cm->lf.filter_level;
  memcpy(dst_cm->lf.ref_deltas, src_cm->lf.ref_deltas, MAX_REF_FRAMES);
  memcpy(dst_cm->lf.mode_deltas, src_cm->lf.mode_deltas, MAX_MODE_LF_DELTAS);
  dst_cm->seg = src_cm->seg;
  memcpy(dst_cm->frame_contexts, src_cm->frame_contexts,
         FRAME_CONTEXTS * sizeof(dst_cm->frame_contexts[0]));
#else
  (void)dst_worker;
  (void)src_worker;
#endif  // CONFIG_MULTITHREAD
}
示例#2
0
文件: dthread.c 项目: jmvalin/aom
// TODO(hkuang): Remove worker parameter as it is only used in debug code.
void vp10_frameworker_wait(VPxWorker *const worker, RefCntBuffer *const ref_buf,
                           int row) {
#if CONFIG_MULTITHREAD
  if (!ref_buf) return;

#ifndef BUILDING_WITH_TSAN
  // The following line of code will get harmless tsan error but it is the key
  // to get best performance.
  if (ref_buf->row >= row && ref_buf->buf.corrupted != 1) return;
#endif

  {
    // Find the worker thread that owns the reference frame. If the reference
    // frame has been fully decoded, it may not have owner.
    VPxWorker *const ref_worker = ref_buf->frame_worker_owner;
    FrameWorkerData *const ref_worker_data =
        (FrameWorkerData *)ref_worker->data1;
    const VP10Decoder *const pbi = ref_worker_data->pbi;

#ifdef DEBUG_THREAD
    {
      FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
      printf("%d %p worker is waiting for %d %p worker (%d)  ref %d \r\n",
             worker_data->worker_id, worker, ref_worker_data->worker_id,
             ref_buf->frame_worker_owner, row, ref_buf->row);
    }
#endif

    vp10_frameworker_lock_stats(ref_worker);
    while (ref_buf->row < row && pbi->cur_buf == ref_buf &&
           ref_buf->buf.corrupted != 1) {
      pthread_cond_wait(&ref_worker_data->stats_cond,
                        &ref_worker_data->stats_mutex);
    }

    if (ref_buf->buf.corrupted == 1) {
      FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
      vp10_frameworker_unlock_stats(ref_worker);
      vpx_internal_error(&worker_data->pbi->common.error,
                         VPX_CODEC_CORRUPT_FRAME,
                         "Worker %p failed to decode frame", worker);
    }
    vp10_frameworker_unlock_stats(ref_worker);
  }
#else
  (void)worker;
  (void)ref_buf;
  (void)row;
  (void)ref_buf;
#endif  // CONFIG_MULTITHREAD
}
示例#3
0
文件: dthread.c 项目: jmvalin/aom
void vp10_frameworker_broadcast(RefCntBuffer *const buf, int row) {
#if CONFIG_MULTITHREAD
  VPxWorker *worker = buf->frame_worker_owner;

#ifdef DEBUG_THREAD
  {
    FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
    printf("%d %p worker decode to (%d) \r\n", worker_data->worker_id,
           buf->frame_worker_owner, row);
  }
#endif

  vp10_frameworker_lock_stats(worker);
  buf->row = row;
  vp10_frameworker_signal_stats(worker);
  vp10_frameworker_unlock_stats(worker);
#else
  (void)buf;
  (void)row;
#endif  // CONFIG_MULTITHREAD
}
示例#4
0
static int frame_worker_hook(void *arg1, void *arg2) {
  FrameWorkerData *const frame_worker_data = (FrameWorkerData *)arg1;
  const uint8_t *data = frame_worker_data->data;
  (void)arg2;

  frame_worker_data->result =
      vp10_receive_compressed_data(frame_worker_data->pbi,
                                  frame_worker_data->data_size,
                                  &data);
  frame_worker_data->data_end = data;

  if (frame_worker_data->pbi->frame_parallel_decode) {
    // In frame parallel decoding, a worker thread must successfully decode all
    // the compressed data.
    if (frame_worker_data->result != 0 ||
        frame_worker_data->data + frame_worker_data->data_size - 1 > data) {
      VPxWorker *const worker = frame_worker_data->pbi->frame_worker_owner;
      BufferPool *const pool = frame_worker_data->pbi->common.buffer_pool;
      // Signal all the other threads that are waiting for this frame.
      vp10_frameworker_lock_stats(worker);
      frame_worker_data->frame_context_ready = 1;
      lock_buffer_pool(pool);
      frame_worker_data->pbi->cur_buf->buf.corrupted = 1;
      unlock_buffer_pool(pool);
      frame_worker_data->pbi->need_resync = 1;
      vp10_frameworker_signal_stats(worker);
      vp10_frameworker_unlock_stats(worker);
      return 0;
    }
  } else if (frame_worker_data->result != 0) {
    // Check decode result in serial decode.
    frame_worker_data->pbi->cur_buf->buf.corrupted = 1;
    frame_worker_data->pbi->need_resync = 1;
  }
  return !frame_worker_data->result;
}
示例#5
0
int vp10_receive_compressed_data(VP10Decoder *pbi,
                                size_t size, const uint8_t **psource) {
  VP10_COMMON *volatile const cm = &pbi->common;
  BufferPool *volatile const pool = cm->buffer_pool;
  RefCntBuffer *volatile const frame_bufs = cm->buffer_pool->frame_bufs;
  const uint8_t *source = *psource;
  int retcode = 0;
  cm->error.error_code = VPX_CODEC_OK;

  if (size == 0) {
    // This is used to signal that we are missing frames.
    // We do not know if the missing frame(s) was supposed to update
    // any of the reference buffers, but we act conservative and
    // mark only the last buffer as corrupted.
    //
    // TODO(jkoleszar): Error concealment is undefined and non-normative
    // at this point, but if it becomes so, [0] may not always be the correct
    // thing to do here.
    if (cm->frame_refs[0].idx > 0) {
      assert(cm->frame_refs[0].buf != NULL);
      cm->frame_refs[0].buf->corrupted = 1;
    }
  }

  pbi->ready_for_new_data = 0;

  // Check if the previous frame was a frame without any references to it.
  // Release frame buffer if not decoding in frame parallel mode.
  if (!pbi->frame_parallel_decode && cm->new_fb_idx >= 0
      && frame_bufs[cm->new_fb_idx].ref_count == 0)
    pool->release_fb_cb(pool->cb_priv,
                        &frame_bufs[cm->new_fb_idx].raw_frame_buffer);
  // Find a free frame buffer. Return error if can not find any.
  cm->new_fb_idx = get_free_fb(cm);
  if (cm->new_fb_idx == INVALID_IDX)
    return VPX_CODEC_MEM_ERROR;

  // Assign a MV array to the frame buffer.
  cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];

  pbi->hold_ref_buf = 0;
  if (pbi->frame_parallel_decode) {
    VPxWorker *const worker = pbi->frame_worker_owner;
    vp10_frameworker_lock_stats(worker);
    frame_bufs[cm->new_fb_idx].frame_worker_owner = worker;
    // Reset decoding progress.
    pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
    pbi->cur_buf->row = -1;
    pbi->cur_buf->col = -1;
    vp10_frameworker_unlock_stats(worker);
  } else {
    pbi->cur_buf = &frame_bufs[cm->new_fb_idx];
  }


  if (setjmp(cm->error.jmp)) {
    const VPxWorkerInterface *const winterface = vpx_get_worker_interface();
    int i;

    cm->error.setjmp = 0;
    pbi->ready_for_new_data = 1;

    // Synchronize all threads immediately as a subsequent decode call may
    // cause a resize invalidating some allocations.
    winterface->sync(&pbi->lf_worker);
    for (i = 0; i < pbi->num_tile_workers; ++i) {
      winterface->sync(&pbi->tile_workers[i]);
    }

    lock_buffer_pool(pool);
    // Release all the reference buffers if worker thread is holding them.
    if (pbi->hold_ref_buf == 1) {
      int ref_index = 0, mask;
      for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
        const int old_idx = cm->ref_frame_map[ref_index];
        // Current thread releases the holding of reference frame.
        decrease_ref_count(old_idx, frame_bufs, pool);

        // Release the reference frame in reference map.
        if ((mask & 1) && old_idx >= 0) {
          decrease_ref_count(old_idx, frame_bufs, pool);
        }
        ++ref_index;
      }

      // Current thread releases the holding of reference frame.
      for (; ref_index < REF_FRAMES && !cm->show_existing_frame; ++ref_index) {
        const int old_idx = cm->ref_frame_map[ref_index];
        decrease_ref_count(old_idx, frame_bufs, pool);
      }
      pbi->hold_ref_buf = 0;
    }
    // Release current frame.
    decrease_ref_count(cm->new_fb_idx, frame_bufs, pool);
    unlock_buffer_pool(pool);

    vpx_clear_system_state();
    return -1;
  }