Exemple #1
0
int vp9_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG   *src,
                       int64_t ts_start, int64_t ts_end, unsigned int flags) {
  struct lookahead_entry *buf;
#if USE_PARTIAL_COPY
  int row, col, active_end;
  int mb_rows = (src->y_height + 15) >> 4;
  int mb_cols = (src->y_width + 15) >> 4;
#endif

  if (ctx->sz + 1  + MAX_PRE_FRAMES > ctx->max_sz)
    return 1;
  ctx->sz++;
  buf = pop(ctx, &ctx->write_idx);

#if USE_PARTIAL_COPY
  // TODO(jkoleszar): This is disabled for now, as
  // vp9_copy_and_extend_frame_with_rect is not subsampling/alpha aware.

  // Only do this partial copy if the following conditions are all met:
  // 1. Lookahead queue has has size of 1.
  // 2. Active map is provided.
  // 3. This is not a key frame, golden nor altref frame.
  if (ctx->max_sz == 1 && active_map && !flags) {
    for (row = 0; row < mb_rows; ++row) {
      col = 0;

      while (1) {
        // Find the first active macroblock in this row.
        for (; col < mb_cols; ++col) {
          if (active_map[col])
            break;
        }

        // No more active macroblock in this row.
        if (col == mb_cols)
          break;

        // Find the end of active region in this row.
        active_end = col;

        for (; active_end < mb_cols; ++active_end) {
          if (!active_map[active_end])
            break;
        }

        // Only copy this active region.
        vp9_copy_and_extend_frame_with_rect(src, &buf->img,
                                            row << 4,
                                            col << 4, 16,
                                            (active_end - col) << 4);

        // Start again from the end of this active region.
        col = active_end;
      }

      active_map += mb_cols;
    }
  } else {
    vp9_copy_and_extend_frame(src, &buf->img);
  }
#else
  // Partial copy not implemented yet
  vp9_copy_and_extend_frame(src, &buf->img);
#endif

  buf->ts_start = ts_start;
  buf->ts_end = ts_end;
  buf->flags = flags;
  return 0;
}
Exemple #2
0
int vp9_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG   *src,
                       int64_t ts_start, int64_t ts_end, unsigned int flags,
                       unsigned char *active_map) {
  struct lookahead_entry *buf;
#if USE_PARTIAL_COPY
  int row, col, active_end;
  int mb_rows = (src->y_height + 15) >> 4;
  int mb_cols = (src->y_width + 15) >> 4;
#endif

  if (ctx->sz + 1 > ctx->max_sz)
    return 1;
  ctx->sz++;
  buf = pop(ctx, &ctx->write_idx);

#if USE_PARTIAL_COPY
  
  

  
  
  
  
  if (ctx->max_sz == 1 && active_map && !flags) {
    for (row = 0; row < mb_rows; ++row) {
      col = 0;

      while (1) {
        
        for (; col < mb_cols; ++col) {
          if (active_map[col])
            break;
        }

        
        if (col == mb_cols)
          break;

        
        active_end = col;

        for (; active_end < mb_cols; ++active_end) {
          if (!active_map[active_end])
            break;
        }

        
        vp9_copy_and_extend_frame_with_rect(src, &buf->img,
                                            row << 4,
                                            col << 4, 16,
                                            (active_end - col) << 4);

        
        col = active_end;
      }

      active_map += mb_cols;
    }
  } else {
    vp9_copy_and_extend_frame(src, &buf->img);
  }
#else
  
  vp9_copy_and_extend_frame(src, &buf->img);
#endif

  buf->ts_start = ts_start;
  buf->ts_end = ts_end;
  buf->flags = flags;
  return 0;
}