*args->eobtotal += eob;
}
-static MB_MODE_INFO *set_offsets(VP9_COMMON *const cm, MACROBLOCKD *const xd,
- const TileInfo *const tile,
- BLOCK_SIZE bsize, int mi_row, int mi_col) {
- const int bw = num_8x8_blocks_wide_lookup[bsize];
- const int bh = num_8x8_blocks_high_lookup[bsize];
- const int x_mis = MIN(bw, cm->mi_cols - mi_col);
- const int y_mis = MIN(bh, cm->mi_rows - mi_row);
- const int offset = mi_row * cm->mi_stride + mi_col;
- int x, y;
-
- xd->mi = cm->mi_grid_visible + offset;
- xd->mi[0] = &cm->mi[offset];
- xd->mi[0]->mbmi.sb_type = bsize;
- for (y = 0; y < y_mis; ++y)
- for (x = !y; x < x_mis; ++x) {
- xd->mi[y * cm->mi_stride + x] = xd->mi[0];
- }
-
- set_skip_context(xd, mi_row, mi_col);
+static void build_mc_border(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride,
+ int x, int y, int b_w, int b_h, int w, int h) {
+ // Get a pointer to the start of the real data for this row.
+ const uint8_t *ref_row = src - x - y * src_stride;
- // Distance of Mb to the various image edges. These are specified to 8th pel
- // as they are always compared to values that are in 1/8th pel units
- set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);
+ if (y >= h)
+ ref_row += (h - 1) * src_stride;
+ else if (y > 0)
+ ref_row += y * src_stride;
- vp9_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
- return &xd->mi[0]->mbmi;
-}
+ do {
+ int right = 0, copy;
+ int left = x < 0 ? -x : 0;
-// TODO(jzern): relocate this function to avoid the static prototype.
-static void dec_build_inter_predictors_sb(VP9Decoder *const pbi,
- MACROBLOCKD *xd,
- int mi_row, int mi_col,
- BLOCK_SIZE bsize);
+ if (left > b_w)
+ left = b_w;
-static void decode_block(VP9Decoder *const pbi, MACROBLOCKD *const xd,
- const TileInfo *const tile,
- int mi_row, int mi_col,
- vp9_reader *r, BLOCK_SIZE bsize) {
- VP9_COMMON *const cm = &pbi->common;
- const int less8x8 = bsize < BLOCK_8X8;
- MB_MODE_INFO *mbmi = set_offsets(cm, xd, tile, bsize, mi_row, mi_col);
+ if (x + b_w > w)
+ right = x + b_w - w;
- if (bsize >= BLOCK_8X8 && (cm->subsampling_x || cm->subsampling_y)) {
- const BLOCK_SIZE uv_subsize =
- ss_size_lookup[bsize][cm->subsampling_x][cm->subsampling_y];
- if (uv_subsize == BLOCK_INVALID)
- vpx_internal_error(xd->error_info,
- VPX_CODEC_CORRUPT_FRAME, "Invalid block size.");
- }
+ if (right > b_w)
+ right = b_w;
- vp9_read_mode_info(pbi, xd, tile, mi_row, mi_col, r);
+ copy = b_w - left - right;
- if (less8x8)
- bsize = BLOCK_8X8;
+ if (left)
+ memset(dst, ref_row[0], left);
- if (mbmi->skip) {
- reset_skip_context(xd, bsize);
- }
+ if (copy)
+ memcpy(dst + left, ref_row + x + left, copy);
- if (!is_inter_block(mbmi)) {
- struct intra_args arg = {xd, r, mbmi->segment_id};
- vp9_foreach_transformed_block(xd, bsize,
- predict_and_reconstruct_intra_block, &arg);
- } else {
- // Prediction
- dec_build_inter_predictors_sb(pbi, xd, mi_row, mi_col, bsize);
+ if (right)
+ memset(dst + left + copy, ref_row[w - 1], right);
- // Reconstruction
- if (!mbmi->skip) {
- int eobtotal = 0;
- struct inter_args arg = {xd, r, &eobtotal, mbmi->segment_id};
- vp9_foreach_transformed_block(xd, bsize, reconstruct_inter_block, &arg);
- if (!less8x8 && eobtotal == 0)
- mbmi->skip = 1; // skip loopfilter
- }
- }
+ dst += dst_stride;
+ ++y;
- xd->corrupted |= vp9_reader_has_error(r);
+ if (y > 0 && y < h)
+ ref_row += src_stride;
+ } while (--b_h);
}
-static PARTITION_TYPE read_partition(VP9_COMMON *cm, MACROBLOCKD *xd,
- int hbs,
- int mi_row, int mi_col, BLOCK_SIZE bsize,
- vp9_reader *r) {
- const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
- const vp9_prob *const probs = get_partition_probs(cm, ctx);
- const int has_rows = (mi_row + hbs) < cm->mi_rows;
- const int has_cols = (mi_col + hbs) < cm->mi_cols;
- FRAME_COUNTS *counts = xd->counts;
- PARTITION_TYPE p;
+#if CONFIG_VP9_HIGHBITDEPTH
+static void high_build_mc_border(const uint8_t *src8, int src_stride,
+ uint16_t *dst, int dst_stride,
+ int x, int y, int b_w, int b_h,
+ int w, int h) {
+ // Get a pointer to the start of the real data for this row.
+ const uint16_t *src = CONVERT_TO_SHORTPTR(src8);
+ const uint16_t *ref_row = src - x - y * src_stride;
- if (has_rows && has_cols)
- p = (PARTITION_TYPE)vp9_read_tree(r, vp9_partition_tree, probs);
- else if (!has_rows && has_cols)
- p = vp9_read(r, probs[1]) ? PARTITION_SPLIT : PARTITION_HORZ;
- else if (has_rows && !has_cols)
- p = vp9_read(r, probs[2]) ? PARTITION_SPLIT : PARTITION_VERT;
- else
- p = PARTITION_SPLIT;
+ if (y >= h)
+ ref_row += (h - 1) * src_stride;
+ else if (y > 0)
+ ref_row += y * src_stride;
- if (counts)
- ++counts->partition[ctx][p];
+ do {
+ int right = 0, copy;
+ int left = x < 0 ? -x : 0;
- return p;
-}
+ if (left > b_w)
+ left = b_w;
-static void decode_partition(VP9Decoder *const pbi, MACROBLOCKD *const xd,
- const TileInfo *const tile,
- int mi_row, int mi_col,
- vp9_reader* r, BLOCK_SIZE bsize) {
- VP9_COMMON *const cm = &pbi->common;
- const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
- PARTITION_TYPE partition;
- BLOCK_SIZE subsize;
+ if (x + b_w > w)
+ right = x + b_w - w;
- if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
- return;
+ if (right > b_w)
+ right = b_w;
- partition = read_partition(cm, xd, hbs, mi_row, mi_col, bsize, r);
- subsize = get_subsize(bsize, partition);
- if (bsize == BLOCK_8X8) {
- decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
- } else {
- switch (partition) {
- case PARTITION_NONE:
- decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
- break;
- case PARTITION_HORZ:
- decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
- if (mi_row + hbs < cm->mi_rows)
- decode_block(pbi, xd, tile, mi_row + hbs, mi_col, r, subsize);
- break;
- case PARTITION_VERT:
- decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
- if (mi_col + hbs < cm->mi_cols)
- decode_block(pbi, xd, tile, mi_row, mi_col + hbs, r, subsize);
- break;
- case PARTITION_SPLIT:
- decode_partition(pbi, xd, tile, mi_row, mi_col, r, subsize);
- decode_partition(pbi, xd, tile, mi_row, mi_col + hbs, r, subsize);
- decode_partition(pbi, xd, tile, mi_row + hbs, mi_col, r, subsize);
- decode_partition(pbi, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize);
- break;
- default:
- assert(0 && "Invalid partition type");
- }
- }
+ copy = b_w - left - right;
- // update partition context
- if (bsize >= BLOCK_8X8 &&
- (bsize == BLOCK_8X8 || partition != PARTITION_SPLIT))
- update_partition_context(xd, mi_row, mi_col, subsize, bsize);
-}
+ if (left)
+ vpx_memset16(dst, ref_row[0], left);
-static void setup_token_decoder(const uint8_t *data,
- const uint8_t *data_end,
- size_t read_size,
- struct vpx_internal_error_info *error_info,
- vp9_reader *r,
- vpx_decrypt_cb decrypt_cb,
- void *decrypt_state) {
- // Validate the calculated partition length. If the buffer
- // described by the partition can't be fully read, then restrict
- // it to the portion that can be (for EC mode) or throw an error.
- if (!read_is_valid(data, read_size, data_end))
- vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
- "Truncated packet or corrupt tile length");
+ if (copy)
+ memcpy(dst + left, ref_row + x + left, copy * sizeof(uint16_t));
- if (vp9_reader_init(r, data, read_size, decrypt_cb, decrypt_state))
- vpx_internal_error(error_info, VPX_CODEC_MEM_ERROR,
- "Failed to allocate bool decoder %d", 1);
-}
+ if (right)
+ vpx_memset16(dst + left + copy, ref_row[w - 1], right);
-static void read_coef_probs_common(vp9_coeff_probs_model *coef_probs,
- vp9_reader *r) {
- int i, j, k, l, m;
+ dst += dst_stride;
+ ++y;
- if (vp9_read_bit(r))
- for (i = 0; i < PLANE_TYPES; ++i)
- for (j = 0; j < REF_TYPES; ++j)
- for (k = 0; k < COEF_BANDS; ++k)
- for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l)
- for (m = 0; m < UNCONSTRAINED_NODES; ++m)
- vp9_diff_update_prob(r, &coef_probs[i][j][k][l][m]);
+ if (y > 0 && y < h)
+ ref_row += src_stride;
+ } while (--b_h);
}
+#endif // CONFIG_VP9_HIGHBITDEPTH
-static void read_coef_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode,
- vp9_reader *r) {
- const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
- TX_SIZE tx_size;
- for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
- read_coef_probs_common(fc->coef_probs[tx_size], r);
-}
+#if CONFIG_VP9_HIGHBITDEPTH
+static void extend_and_predict(const uint8_t *buf_ptr1, int pre_buf_stride,
+ int x0, int y0, int b_w, int b_h,
+ int frame_width, int frame_height,
+ int border_offset,
+ uint8_t *const dst, int dst_buf_stride,
+ int subpel_x, int subpel_y,
+ const InterpKernel *kernel,
+ const struct scale_factors *sf,
+ MACROBLOCKD *xd,
+ int w, int h, int ref, int xs, int ys) {
+ DECLARE_ALIGNED(16, uint16_t, mc_buf_high[80 * 2 * 80 * 2]);
+ const uint8_t *buf_ptr;
-static void setup_segmentation(struct segmentation *seg,
- struct vp9_read_bit_buffer *rb) {
- int i, j;
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ high_build_mc_border(buf_ptr1, pre_buf_stride, mc_buf_high, b_w,
+ x0, y0, b_w, b_h, frame_width, frame_height);
+ buf_ptr = CONVERT_TO_BYTEPTR(mc_buf_high) + border_offset;
+ } else {
+ build_mc_border(buf_ptr1, pre_buf_stride, (uint8_t *)mc_buf_high, b_w,
+ x0, y0, b_w, b_h, frame_width, frame_height);
+ buf_ptr = ((uint8_t *)mc_buf_high) + border_offset;
+ }
- seg->update_map = 0;
- seg->update_data = 0;
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ high_inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys, xd->bd);
+ } else {
+ inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys);
+ }
+}
+#else
+static void extend_and_predict(const uint8_t *buf_ptr1, int pre_buf_stride,
+ int x0, int y0, int b_w, int b_h,
+ int frame_width, int frame_height,
+ int border_offset,
+ uint8_t *const dst, int dst_buf_stride,
+ int subpel_x, int subpel_y,
+ const InterpKernel *kernel,
+ const struct scale_factors *sf,
+ int w, int h, int ref, int xs, int ys) {
+ DECLARE_ALIGNED(16, uint8_t, mc_buf[80 * 2 * 80 * 2]);
+ const uint8_t *buf_ptr;
- seg->enabled = vp9_rb_read_bit(rb);
- if (!seg->enabled)
- return;
+ build_mc_border(buf_ptr1, pre_buf_stride, mc_buf, b_w,
+ x0, y0, b_w, b_h, frame_width, frame_height);
+ buf_ptr = mc_buf + border_offset;
- // Segmentation map update
- seg->update_map = vp9_rb_read_bit(rb);
- if (seg->update_map) {
- for (i = 0; i < SEG_TREE_PROBS; i++)
- seg->tree_probs[i] = vp9_rb_read_bit(rb) ? vp9_rb_read_literal(rb, 8)
- : MAX_PROB;
+ inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys);
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
- seg->temporal_update = vp9_rb_read_bit(rb);
- if (seg->temporal_update) {
- for (i = 0; i < PREDICTION_PROBS; i++)
- seg->pred_probs[i] = vp9_rb_read_bit(rb) ? vp9_rb_read_literal(rb, 8)
- : MAX_PROB;
- } else {
- for (i = 0; i < PREDICTION_PROBS; i++)
- seg->pred_probs[i] = MAX_PROB;
- }
+static void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
+ int plane, int bw, int bh, int x,
+ int y, int w, int h, int mi_x, int mi_y,
+ const InterpKernel *kernel,
+ const struct scale_factors *sf,
+ struct buf_2d *pre_buf,
+ struct buf_2d *dst_buf, const MV* mv,
+ RefCntBuffer *ref_frame_buf,
+ int is_scaled, int ref) {
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
+ MV32 scaled_mv;
+ int xs, ys, x0, y0, x0_16, y0_16, frame_width, frame_height,
+ buf_stride, subpel_x, subpel_y;
+ uint8_t *ref_frame, *buf_ptr;
+
+ // Get reference frame pointer, width and height.
+ if (plane == 0) {
+ frame_width = ref_frame_buf->buf.y_crop_width;
+ frame_height = ref_frame_buf->buf.y_crop_height;
+ ref_frame = ref_frame_buf->buf.y_buffer;
+ } else {
+ frame_width = ref_frame_buf->buf.uv_crop_width;
+ frame_height = ref_frame_buf->buf.uv_crop_height;
+ ref_frame = plane == 1 ? ref_frame_buf->buf.u_buffer
+ : ref_frame_buf->buf.v_buffer;
}
- // Segmentation data update
- seg->update_data = vp9_rb_read_bit(rb);
- if (seg->update_data) {
- seg->abs_delta = vp9_rb_read_bit(rb);
+ if (is_scaled) {
+ const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, mv, bw, bh,
+ pd->subsampling_x,
+ pd->subsampling_y);
+ // Co-ordinate of containing block to pixel precision.
+ int x_start = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x));
+ int y_start = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y));
- vp9_clearall_segfeatures(seg);
+ // Co-ordinate of the block to 1/16th pixel precision.
+ x0_16 = (x_start + x) << SUBPEL_BITS;
+ y0_16 = (y_start + y) << SUBPEL_BITS;
- for (i = 0; i < MAX_SEGMENTS; i++) {
- for (j = 0; j < SEG_LVL_MAX; j++) {
- int data = 0;
- const int feature_enabled = vp9_rb_read_bit(rb);
- if (feature_enabled) {
- vp9_enable_segfeature(seg, i, j);
- data = decode_unsigned_max(rb, vp9_seg_feature_data_max(j));
- if (vp9_is_segfeature_signed(j))
- data = vp9_rb_read_bit(rb) ? -data : data;
- }
- vp9_set_segdata(seg, i, j, data);
- }
- }
+ // Co-ordinate of current block in reference frame
+ // to 1/16th pixel precision.
+ x0_16 = sf->scale_value_x(x0_16, sf);
+ y0_16 = sf->scale_value_y(y0_16, sf);
+
+ // Map the top left corner of the block into the reference frame.
+ x0 = sf->scale_value_x(x_start + x, sf);
+ y0 = sf->scale_value_y(y_start + y, sf);
+
+ // Scale the MV and incorporate the sub-pixel offset of the block
+ // in the reference frame.
+ scaled_mv = vp9_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
+ xs = sf->x_step_q4;
+ ys = sf->y_step_q4;
+ } else {
+ // Co-ordinate of containing block to pixel precision.
+ x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
+ y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
+
+ // Co-ordinate of the block to 1/16th pixel precision.
+ x0_16 = x0 << SUBPEL_BITS;
+ y0_16 = y0 << SUBPEL_BITS;
+
+ scaled_mv.row = mv->row * (1 << (1 - pd->subsampling_y));
+ scaled_mv.col = mv->col * (1 << (1 - pd->subsampling_x));
+ xs = ys = 16;
}
-}
+ subpel_x = scaled_mv.col & SUBPEL_MASK;
+ subpel_y = scaled_mv.row & SUBPEL_MASK;
-static void setup_loopfilter(struct loopfilter *lf,
- struct vp9_read_bit_buffer *rb) {
- lf->filter_level = vp9_rb_read_literal(rb, 6);
- lf->sharpness_level = vp9_rb_read_literal(rb, 3);
+ // Calculate the top left corner of the best matching block in the
+ // reference frame.
+ x0 += scaled_mv.col >> SUBPEL_BITS;
+ y0 += scaled_mv.row >> SUBPEL_BITS;
+ x0_16 += scaled_mv.col;
+ y0_16 += scaled_mv.row;
- // Read in loop filter deltas applied at the MB level based on mode or ref
- // frame.
- lf->mode_ref_delta_update = 0;
+ // Get reference block pointer.
+ buf_ptr = ref_frame + y0 * pre_buf->stride + x0;
+ buf_stride = pre_buf->stride;
- lf->mode_ref_delta_enabled = vp9_rb_read_bit(rb);
- if (lf->mode_ref_delta_enabled) {
- lf->mode_ref_delta_update = vp9_rb_read_bit(rb);
- if (lf->mode_ref_delta_update) {
- int i;
+ // Do border extension if there is motion or the
+ // width/height is not a multiple of 8 pixels.
+ if (is_scaled || scaled_mv.col || scaled_mv.row ||
+ (frame_width & 0x7) || (frame_height & 0x7)) {
+ int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;
- for (i = 0; i < MAX_REF_LF_DELTAS; i++)
- if (vp9_rb_read_bit(rb))
- lf->ref_deltas[i] = vp9_rb_read_signed_literal(rb, 6);
+ // Get reference block bottom right horizontal coordinate.
+ int x1 = (x0_16 + (w - 1) * xs) >> SUBPEL_BITS;
+ int x_pad = 0, y_pad = 0;
- for (i = 0; i < MAX_MODE_LF_DELTAS; i++)
- if (vp9_rb_read_bit(rb))
- lf->mode_deltas[i] = vp9_rb_read_signed_literal(rb, 6);
+ if (subpel_x || (sf->x_step_q4 != SUBPEL_SHIFTS)) {
+ x0 -= VP9_INTERP_EXTEND - 1;
+ x1 += VP9_INTERP_EXTEND;
+ x_pad = 1;
}
- }
-}
-static INLINE int read_delta_q(struct vp9_read_bit_buffer *rb) {
- return vp9_rb_read_bit(rb) ? vp9_rb_read_signed_literal(rb, 4) : 0;
-}
+ if (subpel_y || (sf->y_step_q4 != SUBPEL_SHIFTS)) {
+ y0 -= VP9_INTERP_EXTEND - 1;
+ y1 += VP9_INTERP_EXTEND;
+ y_pad = 1;
+ }
-static void setup_quantization(VP9_COMMON *const cm, MACROBLOCKD *const xd,
- struct vp9_read_bit_buffer *rb) {
- cm->base_qindex = vp9_rb_read_literal(rb, QINDEX_BITS);
- cm->y_dc_delta_q = read_delta_q(rb);
- cm->uv_dc_delta_q = read_delta_q(rb);
- cm->uv_ac_delta_q = read_delta_q(rb);
- cm->dequant_bit_depth = cm->bit_depth;
- xd->lossless = cm->base_qindex == 0 &&
- cm->y_dc_delta_q == 0 &&
- cm->uv_dc_delta_q == 0 &&
- cm->uv_ac_delta_q == 0;
+ // Wait until reference block is ready. Pad 7 more pixels as last 7
+ // pixels of each superblock row can be changed by next superblock row.
+ if (pbi->frame_parallel_decode)
+ vp9_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
+ MAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
+
+ // Skip border extension if block is inside the frame.
+ if (x0 < 0 || x0 > frame_width - 1 || x1 < 0 || x1 > frame_width - 1 ||
+ y0 < 0 || y0 > frame_height - 1 || y1 < 0 || y1 > frame_height - 1) {
+ // Extend the border.
+ const uint8_t *const buf_ptr1 = ref_frame + y0 * buf_stride + x0;
+ const int b_w = x1 - x0 + 1;
+ const int b_h = y1 - y0 + 1;
+ const int border_offset = y_pad * 3 * b_w + x_pad * 3;
+ extend_and_predict(buf_ptr1, buf_stride, x0, y0, b_w, b_h,
+ frame_width, frame_height, border_offset,
+ dst, dst_buf->stride,
+ subpel_x, subpel_y,
+ kernel, sf,
#if CONFIG_VP9_HIGHBITDEPTH
- xd->bd = (int)cm->bit_depth;
+ xd,
#endif
-}
-
-static void setup_segmentation_dequant(VP9_COMMON *const cm) {
- // Build y/uv dequant values based on segmentation.
- if (cm->seg.enabled) {
- int i;
- for (i = 0; i < MAX_SEGMENTS; ++i) {
- const int qindex = vp9_get_qindex(&cm->seg, i, cm->base_qindex);
- cm->y_dequant[i][0] = vp9_dc_quant(qindex, cm->y_dc_delta_q,
- cm->bit_depth);
- cm->y_dequant[i][1] = vp9_ac_quant(qindex, 0, cm->bit_depth);
- cm->uv_dequant[i][0] = vp9_dc_quant(qindex, cm->uv_dc_delta_q,
- cm->bit_depth);
- cm->uv_dequant[i][1] = vp9_ac_quant(qindex, cm->uv_ac_delta_q,
- cm->bit_depth);
+ w, h, ref, xs, ys);
+ return;
}
} else {
- const int qindex = cm->base_qindex;
- // When segmentation is disabled, only the first value is used. The
- // remaining are don't cares.
- cm->y_dequant[0][0] = vp9_dc_quant(qindex, cm->y_dc_delta_q, cm->bit_depth);
- cm->y_dequant[0][1] = vp9_ac_quant(qindex, 0, cm->bit_depth);
- cm->uv_dequant[0][0] = vp9_dc_quant(qindex, cm->uv_dc_delta_q,
- cm->bit_depth);
- cm->uv_dequant[0][1] = vp9_ac_quant(qindex, cm->uv_ac_delta_q,
- cm->bit_depth);
+ // Wait until reference block is ready. Pad 7 more pixels as last 7
+ // pixels of each superblock row can be changed by next superblock row.
+ if (pbi->frame_parallel_decode) {
+ const int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;
+ vp9_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
+ MAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
+ }
+ }
+#if CONFIG_VP9_HIGHBITDEPTH
+ if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+ high_inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys, xd->bd);
+ } else {
+ inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys);
}
+#else
+ inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
+ subpel_y, sf, w, h, ref, kernel, xs, ys);
+#endif // CONFIG_VP9_HIGHBITDEPTH
}
-static INTERP_FILTER read_interp_filter(struct vp9_read_bit_buffer *rb) {
- const INTERP_FILTER literal_to_filter[] = { EIGHTTAP_SMOOTH,
- EIGHTTAP,
- EIGHTTAP_SHARP,
- BILINEAR };
- return vp9_rb_read_bit(rb) ? SWITCHABLE
- : literal_to_filter[vp9_rb_read_literal(rb, 2)];
-}
-
-void vp9_read_frame_size(struct vp9_read_bit_buffer *rb,
- int *width, int *height) {
- *width = vp9_rb_read_literal(rb, 16) + 1;
- *height = vp9_rb_read_literal(rb, 16) + 1;
-}
+static void dec_build_inter_predictors_sb(VP9Decoder *const pbi,
+ MACROBLOCKD *xd,
+ int mi_row, int mi_col,
+ BLOCK_SIZE bsize) {
+ int plane;
+ const int mi_x = mi_col * MI_SIZE;
+ const int mi_y = mi_row * MI_SIZE;
+ const MODE_INFO *mi = xd->mi[0];
+ const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
+ const BLOCK_SIZE sb_type = mi->mbmi.sb_type;
+ const int is_compound = has_second_ref(&mi->mbmi);
-static void setup_display_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
- cm->display_width = cm->width;
- cm->display_height = cm->height;
- if (vp9_rb_read_bit(rb))
- vp9_read_frame_size(rb, &cm->display_width, &cm->display_height);
-}
+ for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
+ const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize,
+ &xd->plane[plane]);
+ struct macroblockd_plane *const pd = &xd->plane[plane];
+ struct buf_2d *const dst_buf = &pd->dst;
+ const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
+ const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
-static void resize_mv_buffer(VP9_COMMON *cm) {
- vpx_free(cm->cur_frame->mvs);
- cm->cur_frame->mi_rows = cm->mi_rows;
- cm->cur_frame->mi_cols = cm->mi_cols;
- cm->cur_frame->mvs = (MV_REF *)vpx_calloc(cm->mi_rows * cm->mi_cols,
- sizeof(*cm->cur_frame->mvs));
-}
+ const int bw = 4 * num_4x4_w;
+ const int bh = 4 * num_4x4_h;
+ int ref;
-static void resize_context_buffers(VP9_COMMON *cm, int width, int height) {
-#if CONFIG_SIZE_LIMIT
- if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Dimensions of %dx%d beyond allowed size of %dx%d.",
- width, height, DECODE_WIDTH_LIMIT, DECODE_HEIGHT_LIMIT);
-#endif
- if (cm->width != width || cm->height != height) {
- const int new_mi_rows =
- ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
- const int new_mi_cols =
- ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
+ struct buf_2d *const pre_buf = &pd->pre[ref];
+ const int idx = xd->block_refs[ref]->idx;
+ BufferPool *const pool = pbi->common.buffer_pool;
+ RefCntBuffer *const ref_frame_buf = &pool->frame_bufs[idx];
+ const int is_scaled = vp9_is_scaled(sf);
- // Allocations in vp9_alloc_context_buffers() depend on individual
- // dimensions as well as the overall size.
- if (new_mi_cols > cm->mi_cols || new_mi_rows > cm->mi_rows) {
- if (vp9_alloc_context_buffers(cm, width, height))
- vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
- "Failed to allocate context buffers");
- } else {
- vp9_set_mb_mi(cm, width, height);
+ if (sb_type < BLOCK_8X8) {
+ int i = 0, x, y;
+ assert(bsize == BLOCK_8X8);
+ for (y = 0; y < num_4x4_h; ++y) {
+ for (x = 0; x < num_4x4_w; ++x) {
+ const MV mv = average_split_mvs(pd, mi, ref, i++);
+ dec_build_inter_predictors(pbi, xd, plane, bw, bh,
+ 4 * x, 4 * y, 4, 4, mi_x, mi_y, kernel,
+ sf, pre_buf, dst_buf, &mv,
+ ref_frame_buf, is_scaled, ref);
+ }
+ }
+ } else {
+ const MV mv = mi->mbmi.mv[ref].as_mv;
+ dec_build_inter_predictors(pbi, xd, plane, bw, bh,
+ 0, 0, bw, bh, mi_x, mi_y, kernel,
+ sf, pre_buf, dst_buf, &mv, ref_frame_buf,
+ is_scaled, ref);
+ }
}
- vp9_init_context_buffers(cm);
- cm->width = width;
- cm->height = height;
- }
- if (cm->cur_frame->mvs == NULL || cm->mi_rows > cm->cur_frame->mi_rows ||
- cm->mi_cols > cm->cur_frame->mi_cols) {
- resize_mv_buffer(cm);
}
}
-static void setup_frame_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
- int width, height;
- BufferPool *const pool = cm->buffer_pool;
- vp9_read_frame_size(rb, &width, &height);
- resize_context_buffers(cm, width, height);
- setup_display_size(cm, rb);
+static MB_MODE_INFO *set_offsets(VP9_COMMON *const cm, MACROBLOCKD *const xd,
+ const TileInfo *const tile,
+ BLOCK_SIZE bsize, int mi_row, int mi_col) {
+ const int bw = num_8x8_blocks_wide_lookup[bsize];
+ const int bh = num_8x8_blocks_high_lookup[bsize];
+ const int x_mis = MIN(bw, cm->mi_cols - mi_col);
+ const int y_mis = MIN(bh, cm->mi_rows - mi_row);
+ const int offset = mi_row * cm->mi_stride + mi_col;
+ int x, y;
- lock_buffer_pool(pool);
- if (vp9_realloc_frame_buffer(
- get_frame_new_buffer(cm), cm->width, cm->height,
- cm->subsampling_x, cm->subsampling_y,
-#if CONFIG_VP9_HIGHBITDEPTH
- cm->use_highbitdepth,
-#endif
- VP9_DEC_BORDER_IN_PIXELS,
- cm->byte_alignment,
- &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
- pool->cb_priv)) {
- unlock_buffer_pool(pool);
- vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
- "Failed to allocate frame buffer");
- }
- unlock_buffer_pool(pool);
+ xd->mi = cm->mi_grid_visible + offset;
+ xd->mi[0] = &cm->mi[offset];
+ xd->mi[0]->mbmi.sb_type = bsize;
+ for (y = 0; y < y_mis; ++y)
+ for (x = !y; x < x_mis; ++x) {
+ xd->mi[y * cm->mi_stride + x] = xd->mi[0];
+ }
- pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
- pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
- pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
- pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
-}
+ set_skip_context(xd, mi_row, mi_col);
-static INLINE int valid_ref_frame_img_fmt(vpx_bit_depth_t ref_bit_depth,
- int ref_xss, int ref_yss,
- vpx_bit_depth_t this_bit_depth,
- int this_xss, int this_yss) {
- return ref_bit_depth == this_bit_depth && ref_xss == this_xss &&
- ref_yss == this_yss;
+ // Distance of Mb to the various image edges. These are specified to 8th pel
+ // as they are always compared to values that are in 1/8th pel units
+ set_mi_row_col(xd, tile, mi_row, bh, mi_col, bw, cm->mi_rows, cm->mi_cols);
+
+ vp9_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col);
+ return &xd->mi[0]->mbmi;
}
-static void setup_frame_size_with_refs(VP9_COMMON *cm,
- struct vp9_read_bit_buffer *rb) {
- int width, height;
- int found = 0, i;
- int has_valid_ref_frame = 0;
- BufferPool *const pool = cm->buffer_pool;
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- if (vp9_rb_read_bit(rb)) {
- YV12_BUFFER_CONFIG *const buf = cm->frame_refs[i].buf;
- width = buf->y_crop_width;
- height = buf->y_crop_height;
- found = 1;
- break;
- }
+static void decode_block(VP9Decoder *const pbi, MACROBLOCKD *const xd,
+ const TileInfo *const tile,
+ int mi_row, int mi_col,
+ vp9_reader *r, BLOCK_SIZE bsize) {
+ VP9_COMMON *const cm = &pbi->common;
+ const int less8x8 = bsize < BLOCK_8X8;
+ MB_MODE_INFO *mbmi = set_offsets(cm, xd, tile, bsize, mi_row, mi_col);
+
+ if (bsize >= BLOCK_8X8 && (cm->subsampling_x || cm->subsampling_y)) {
+ const BLOCK_SIZE uv_subsize =
+ ss_size_lookup[bsize][cm->subsampling_x][cm->subsampling_y];
+ if (uv_subsize == BLOCK_INVALID)
+ vpx_internal_error(xd->error_info,
+ VPX_CODEC_CORRUPT_FRAME, "Invalid block size.");
}
- if (!found)
- vp9_read_frame_size(rb, &width, &height);
+ vp9_read_mode_info(pbi, xd, tile, mi_row, mi_col, r);
- if (width <= 0 || height <= 0)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Invalid frame size");
+ if (less8x8)
+ bsize = BLOCK_8X8;
- // Check to make sure at least one of frames that this frame references
- // has valid dimensions.
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- RefBuffer *const ref_frame = &cm->frame_refs[i];
- has_valid_ref_frame |= valid_ref_frame_size(ref_frame->buf->y_crop_width,
- ref_frame->buf->y_crop_height,
- width, height);
- }
- if (!has_valid_ref_frame)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Referenced frame has invalid size");
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- RefBuffer *const ref_frame = &cm->frame_refs[i];
- if (!valid_ref_frame_img_fmt(
- ref_frame->buf->bit_depth,
- ref_frame->buf->subsampling_x,
- ref_frame->buf->subsampling_y,
- cm->bit_depth,
- cm->subsampling_x,
- cm->subsampling_y))
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Referenced frame has incompatible color format");
+ if (mbmi->skip) {
+ reset_skip_context(xd, bsize);
}
- resize_context_buffers(cm, width, height);
- setup_display_size(cm, rb);
+ if (!is_inter_block(mbmi)) {
+ struct intra_args arg = {xd, r, mbmi->segment_id};
+ vp9_foreach_transformed_block(xd, bsize,
+ predict_and_reconstruct_intra_block, &arg);
+ } else {
+ // Prediction
+ dec_build_inter_predictors_sb(pbi, xd, mi_row, mi_col, bsize);
- lock_buffer_pool(pool);
- if (vp9_realloc_frame_buffer(
- get_frame_new_buffer(cm), cm->width, cm->height,
- cm->subsampling_x, cm->subsampling_y,
-#if CONFIG_VP9_HIGHBITDEPTH
- cm->use_highbitdepth,
-#endif
- VP9_DEC_BORDER_IN_PIXELS,
- cm->byte_alignment,
- &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
- pool->cb_priv)) {
- unlock_buffer_pool(pool);
- vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
- "Failed to allocate frame buffer");
+ // Reconstruction
+ if (!mbmi->skip) {
+ int eobtotal = 0;
+ struct inter_args arg = {xd, r, &eobtotal, mbmi->segment_id};
+ vp9_foreach_transformed_block(xd, bsize, reconstruct_inter_block, &arg);
+ if (!less8x8 && eobtotal == 0)
+ mbmi->skip = 1; // skip loopfilter
+ }
}
- unlock_buffer_pool(pool);
- pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
- pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
- pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
- pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
+ xd->corrupted |= vp9_reader_has_error(r);
}
-static void setup_tile_info(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
- int min_log2_tile_cols, max_log2_tile_cols, max_ones;
- vp9_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
-
- // columns
- max_ones = max_log2_tile_cols - min_log2_tile_cols;
- cm->log2_tile_cols = min_log2_tile_cols;
- while (max_ones-- && vp9_rb_read_bit(rb))
- cm->log2_tile_cols++;
-
- if (cm->log2_tile_cols > 6)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Invalid number of tile columns");
+static PARTITION_TYPE read_partition(VP9_COMMON *cm, MACROBLOCKD *xd,
+ int hbs,
+ int mi_row, int mi_col, BLOCK_SIZE bsize,
+ vp9_reader *r) {
+ const int ctx = partition_plane_context(xd, mi_row, mi_col, bsize);
+ const vp9_prob *const probs = get_partition_probs(cm, ctx);
+ const int has_rows = (mi_row + hbs) < cm->mi_rows;
+ const int has_cols = (mi_col + hbs) < cm->mi_cols;
+ FRAME_COUNTS *counts = xd->counts;
+ PARTITION_TYPE p;
- // rows
- cm->log2_tile_rows = vp9_rb_read_bit(rb);
- if (cm->log2_tile_rows)
- cm->log2_tile_rows += vp9_rb_read_bit(rb);
-}
+ if (has_rows && has_cols)
+ p = (PARTITION_TYPE)vp9_read_tree(r, vp9_partition_tree, probs);
+ else if (!has_rows && has_cols)
+ p = vp9_read(r, probs[1]) ? PARTITION_SPLIT : PARTITION_HORZ;
+ else if (has_rows && !has_cols)
+ p = vp9_read(r, probs[2]) ? PARTITION_SPLIT : PARTITION_VERT;
+ else
+ p = PARTITION_SPLIT;
-typedef struct TileBuffer {
- const uint8_t *data;
- size_t size;
- int col; // only used with multi-threaded decoding
-} TileBuffer;
+ if (counts)
+ ++counts->partition[ctx][p];
-// Reads the next tile returning its size and adjusting '*data' accordingly
-// based on 'is_last'.
-static void get_tile_buffer(const uint8_t *const data_end,
- int is_last,
- struct vpx_internal_error_info *error_info,
- const uint8_t **data,
- vpx_decrypt_cb decrypt_cb, void *decrypt_state,
- TileBuffer *buf) {
- size_t size;
+ return p;
+}
- if (!is_last) {
- if (!read_is_valid(*data, 4, data_end))
- vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
- "Truncated packet or corrupt tile length");
+static void decode_partition(VP9Decoder *const pbi, MACROBLOCKD *const xd,
+ const TileInfo *const tile,
+ int mi_row, int mi_col,
+ vp9_reader* r, BLOCK_SIZE bsize) {
+ VP9_COMMON *const cm = &pbi->common;
+ const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
+ PARTITION_TYPE partition;
+ BLOCK_SIZE subsize;
- if (decrypt_cb) {
- uint8_t be_data[4];
- decrypt_cb(decrypt_state, *data, be_data, 4);
- size = mem_get_be32(be_data);
- } else {
- size = mem_get_be32(*data);
- }
- *data += 4;
+ if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
+ return;
- if (size > (size_t)(data_end - *data))
- vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
- "Truncated packet or corrupt tile size");
+ partition = read_partition(cm, xd, hbs, mi_row, mi_col, bsize, r);
+ subsize = get_subsize(bsize, partition);
+ if (bsize == BLOCK_8X8) {
+ decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
} else {
- size = data_end - *data;
+ switch (partition) {
+ case PARTITION_NONE:
+ decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
+ break;
+ case PARTITION_HORZ:
+ decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
+ if (mi_row + hbs < cm->mi_rows)
+ decode_block(pbi, xd, tile, mi_row + hbs, mi_col, r, subsize);
+ break;
+ case PARTITION_VERT:
+ decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
+ if (mi_col + hbs < cm->mi_cols)
+ decode_block(pbi, xd, tile, mi_row, mi_col + hbs, r, subsize);
+ break;
+ case PARTITION_SPLIT:
+ decode_partition(pbi, xd, tile, mi_row, mi_col, r, subsize);
+ decode_partition(pbi, xd, tile, mi_row, mi_col + hbs, r, subsize);
+ decode_partition(pbi, xd, tile, mi_row + hbs, mi_col, r, subsize);
+ decode_partition(pbi, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize);
+ break;
+ default:
+ assert(0 && "Invalid partition type");
+ }
}
- buf->data = *data;
- buf->size = size;
+ // update partition context
+ if (bsize >= BLOCK_8X8 &&
+ (bsize == BLOCK_8X8 || partition != PARTITION_SPLIT))
+ update_partition_context(xd, mi_row, mi_col, subsize, bsize);
+}
- *data += size;
+static void setup_token_decoder(const uint8_t *data,
+ const uint8_t *data_end,
+ size_t read_size,
+ struct vpx_internal_error_info *error_info,
+ vp9_reader *r,
+ vpx_decrypt_cb decrypt_cb,
+ void *decrypt_state) {
+ // Validate the calculated partition length. If the buffer
+ // described by the partition can't be fully read, then restrict
+ // it to the portion that can be (for EC mode) or throw an error.
+ if (!read_is_valid(data, read_size, data_end))
+ vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile length");
+
+ if (vp9_reader_init(r, data, read_size, decrypt_cb, decrypt_state))
+ vpx_internal_error(error_info, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate bool decoder %d", 1);
}
-static void get_tile_buffers(VP9Decoder *pbi,
- const uint8_t *data, const uint8_t *data_end,
- int tile_cols, int tile_rows,
- TileBuffer (*tile_buffers)[1 << 6]) {
- int r, c;
+static void read_coef_probs_common(vp9_coeff_probs_model *coef_probs,
+ vp9_reader *r) {
+ int i, j, k, l, m;
- for (r = 0; r < tile_rows; ++r) {
- for (c = 0; c < tile_cols; ++c) {
- const int is_last = (r == tile_rows - 1) && (c == tile_cols - 1);
- TileBuffer *const buf = &tile_buffers[r][c];
- buf->col = c;
- get_tile_buffer(data_end, is_last, &pbi->common.error, &data,
- pbi->decrypt_cb, pbi->decrypt_state, buf);
- }
- }
+ if (vp9_read_bit(r))
+ for (i = 0; i < PLANE_TYPES; ++i)
+ for (j = 0; j < REF_TYPES; ++j)
+ for (k = 0; k < COEF_BANDS; ++k)
+ for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l)
+ for (m = 0; m < UNCONSTRAINED_NODES; ++m)
+ vp9_diff_update_prob(r, &coef_probs[i][j][k][l][m]);
}
-static const uint8_t *decode_tiles(VP9Decoder *pbi,
- const uint8_t *data,
- const uint8_t *data_end) {
- VP9_COMMON *const cm = &pbi->common;
- const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
- const int aligned_cols = mi_cols_aligned_to_sb(cm->mi_cols);
- const int tile_cols = 1 << cm->log2_tile_cols;
- const int tile_rows = 1 << cm->log2_tile_rows;
- TileBuffer tile_buffers[4][1 << 6];
- int tile_row, tile_col;
- int mi_row, mi_col;
- TileData *tile_data = NULL;
+static void read_coef_probs(FRAME_CONTEXT *fc, TX_MODE tx_mode,
+ vp9_reader *r) {
+ const TX_SIZE max_tx_size = tx_mode_to_biggest_tx_size[tx_mode];
+ TX_SIZE tx_size;
+ for (tx_size = TX_4X4; tx_size <= max_tx_size; ++tx_size)
+ read_coef_probs_common(fc->coef_probs[tx_size], r);
+}
- if (cm->lf.filter_level && !cm->skip_loop_filter &&
- pbi->lf_worker.data1 == NULL) {
- CHECK_MEM_ERROR(cm, pbi->lf_worker.data1,
- vpx_memalign(32, sizeof(LFWorkerData)));
- pbi->lf_worker.hook = (VP9WorkerHook)vp9_loop_filter_worker;
- if (pbi->max_threads > 1 && !winterface->reset(&pbi->lf_worker)) {
- vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
- "Loop filter thread creation failed");
+static void setup_segmentation(struct segmentation *seg,
+ struct vp9_read_bit_buffer *rb) {
+ int i, j;
+
+ seg->update_map = 0;
+ seg->update_data = 0;
+
+ seg->enabled = vp9_rb_read_bit(rb);
+ if (!seg->enabled)
+ return;
+
+ // Segmentation map update
+ seg->update_map = vp9_rb_read_bit(rb);
+ if (seg->update_map) {
+ for (i = 0; i < SEG_TREE_PROBS; i++)
+ seg->tree_probs[i] = vp9_rb_read_bit(rb) ? vp9_rb_read_literal(rb, 8)
+ : MAX_PROB;
+
+ seg->temporal_update = vp9_rb_read_bit(rb);
+ if (seg->temporal_update) {
+ for (i = 0; i < PREDICTION_PROBS; i++)
+ seg->pred_probs[i] = vp9_rb_read_bit(rb) ? vp9_rb_read_literal(rb, 8)
+ : MAX_PROB;
+ } else {
+ for (i = 0; i < PREDICTION_PROBS; i++)
+ seg->pred_probs[i] = MAX_PROB;
}
}
- if (cm->lf.filter_level && !cm->skip_loop_filter) {
- LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
- // Be sure to sync as we might be resuming after a failed frame decode.
- winterface->sync(&pbi->lf_worker);
- vp9_loop_filter_data_reset(lf_data, get_frame_new_buffer(cm), cm,
- pbi->mb.plane);
+ // Segmentation data update
+ seg->update_data = vp9_rb_read_bit(rb);
+ if (seg->update_data) {
+ seg->abs_delta = vp9_rb_read_bit(rb);
+
+ vp9_clearall_segfeatures(seg);
+
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+ for (j = 0; j < SEG_LVL_MAX; j++) {
+ int data = 0;
+ const int feature_enabled = vp9_rb_read_bit(rb);
+ if (feature_enabled) {
+ vp9_enable_segfeature(seg, i, j);
+ data = decode_unsigned_max(rb, vp9_seg_feature_data_max(j));
+ if (vp9_is_segfeature_signed(j))
+ data = vp9_rb_read_bit(rb) ? -data : data;
+ }
+ vp9_set_segdata(seg, i, j, data);
+ }
+ }
}
+}
- assert(tile_rows <= 4);
- assert(tile_cols <= (1 << 6));
+static void setup_loopfilter(struct loopfilter *lf,
+ struct vp9_read_bit_buffer *rb) {
+ lf->filter_level = vp9_rb_read_literal(rb, 6);
+ lf->sharpness_level = vp9_rb_read_literal(rb, 3);
- // Note: this memset assumes above_context[0], [1] and [2]
- // are allocated as part of the same buffer.
- memset(cm->above_context, 0,
- sizeof(*cm->above_context) * MAX_MB_PLANE * 2 * aligned_cols);
+ // Read in loop filter deltas applied at the MB level based on mode or ref
+ // frame.
+ lf->mode_ref_delta_update = 0;
- memset(cm->above_seg_context, 0,
- sizeof(*cm->above_seg_context) * aligned_cols);
+ lf->mode_ref_delta_enabled = vp9_rb_read_bit(rb);
+ if (lf->mode_ref_delta_enabled) {
+ lf->mode_ref_delta_update = vp9_rb_read_bit(rb);
+ if (lf->mode_ref_delta_update) {
+ int i;
- get_tile_buffers(pbi, data, data_end, tile_cols, tile_rows, tile_buffers);
+ for (i = 0; i < MAX_REF_LF_DELTAS; i++)
+ if (vp9_rb_read_bit(rb))
+ lf->ref_deltas[i] = vp9_rb_read_signed_literal(rb, 6);
- if (pbi->tile_data == NULL ||
- (tile_cols * tile_rows) != pbi->total_tiles) {
- vpx_free(pbi->tile_data);
- CHECK_MEM_ERROR(
- cm,
- pbi->tile_data,
- vpx_memalign(32, tile_cols * tile_rows * (sizeof(*pbi->tile_data))));
- pbi->total_tiles = tile_rows * tile_cols;
- }
-
- // Load all tile information into tile_data.
- for (tile_row = 0; tile_row < tile_rows; ++tile_row) {
- for (tile_col = 0; tile_col < tile_cols; ++tile_col) {
- TileInfo tile;
- const TileBuffer *const buf = &tile_buffers[tile_row][tile_col];
- tile_data = pbi->tile_data + tile_cols * tile_row + tile_col;
- tile_data->cm = cm;
- tile_data->xd = pbi->mb;
- tile_data->xd.corrupted = 0;
- tile_data->xd.counts = cm->frame_parallel_decoding_mode ?
- NULL : &cm->counts;
- vp9_tile_init(&tile, tile_data->cm, tile_row, tile_col);
- setup_token_decoder(buf->data, data_end, buf->size, &cm->error,
- &tile_data->bit_reader, pbi->decrypt_cb,
- pbi->decrypt_state);
- init_macroblockd(cm, &tile_data->xd);
+ for (i = 0; i < MAX_MODE_LF_DELTAS; i++)
+ if (vp9_rb_read_bit(rb))
+ lf->mode_deltas[i] = vp9_rb_read_signed_literal(rb, 6);
}
}
+}
- for (tile_row = 0; tile_row < tile_rows; ++tile_row) {
- TileInfo tile;
- vp9_tile_set_row(&tile, cm, tile_row);
- for (mi_row = tile.mi_row_start; mi_row < tile.mi_row_end;
- mi_row += MI_BLOCK_SIZE) {
- for (tile_col = 0; tile_col < tile_cols; ++tile_col) {
- const int col = pbi->inv_tile_order ?
- tile_cols - tile_col - 1 : tile_col;
- tile_data = pbi->tile_data + tile_cols * tile_row + col;
- vp9_tile_set_col(&tile, tile_data->cm, col);
- vp9_zero(tile_data->xd.left_context);
- vp9_zero(tile_data->xd.left_seg_context);
- for (mi_col = tile.mi_col_start; mi_col < tile.mi_col_end;
- mi_col += MI_BLOCK_SIZE) {
- decode_partition(pbi, &tile_data->xd, &tile, mi_row,
- mi_col, &tile_data->bit_reader, BLOCK_64X64);
- }
- pbi->mb.corrupted |= tile_data->xd.corrupted;
- if (pbi->mb.corrupted)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Failed to decode tile data");
- }
- // Loopfilter one row.
- if (cm->lf.filter_level && !cm->skip_loop_filter) {
- const int lf_start = mi_row - MI_BLOCK_SIZE;
- LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
+static INLINE int read_delta_q(struct vp9_read_bit_buffer *rb) {
+ return vp9_rb_read_bit(rb) ? vp9_rb_read_signed_literal(rb, 4) : 0;
+}
- // delay the loopfilter by 1 macroblock row.
- if (lf_start < 0) continue;
+static void setup_quantization(VP9_COMMON *const cm, MACROBLOCKD *const xd,
+ struct vp9_read_bit_buffer *rb) {
+ cm->base_qindex = vp9_rb_read_literal(rb, QINDEX_BITS);
+ cm->y_dc_delta_q = read_delta_q(rb);
+ cm->uv_dc_delta_q = read_delta_q(rb);
+ cm->uv_ac_delta_q = read_delta_q(rb);
+ cm->dequant_bit_depth = cm->bit_depth;
+ xd->lossless = cm->base_qindex == 0 &&
+ cm->y_dc_delta_q == 0 &&
+ cm->uv_dc_delta_q == 0 &&
+ cm->uv_ac_delta_q == 0;
- // decoding has completed: finish up the loop filter in this thread.
- if (mi_row + MI_BLOCK_SIZE >= cm->mi_rows) continue;
+#if CONFIG_VP9_HIGHBITDEPTH
+ xd->bd = (int)cm->bit_depth;
+#endif
+}
- winterface->sync(&pbi->lf_worker);
- lf_data->start = lf_start;
- lf_data->stop = mi_row;
- if (pbi->max_threads > 1) {
- winterface->launch(&pbi->lf_worker);
- } else {
- winterface->execute(&pbi->lf_worker);
- }
- }
- // After loopfiltering, the last 7 row pixels in each superblock row may
- // still be changed by the longest loopfilter of the next superblock
- // row.
- if (pbi->frame_parallel_decode)
- vp9_frameworker_broadcast(pbi->cur_buf,
- mi_row << MI_BLOCK_SIZE_LOG2);
+static void setup_segmentation_dequant(VP9_COMMON *const cm) {
+ // Build y/uv dequant values based on segmentation.
+ if (cm->seg.enabled) {
+ int i;
+ for (i = 0; i < MAX_SEGMENTS; ++i) {
+ const int qindex = vp9_get_qindex(&cm->seg, i, cm->base_qindex);
+ cm->y_dequant[i][0] = vp9_dc_quant(qindex, cm->y_dc_delta_q,
+ cm->bit_depth);
+ cm->y_dequant[i][1] = vp9_ac_quant(qindex, 0, cm->bit_depth);
+ cm->uv_dequant[i][0] = vp9_dc_quant(qindex, cm->uv_dc_delta_q,
+ cm->bit_depth);
+ cm->uv_dequant[i][1] = vp9_ac_quant(qindex, cm->uv_ac_delta_q,
+ cm->bit_depth);
}
+ } else {
+ const int qindex = cm->base_qindex;
+ // When segmentation is disabled, only the first value is used. The
+ // remaining are don't cares.
+ cm->y_dequant[0][0] = vp9_dc_quant(qindex, cm->y_dc_delta_q, cm->bit_depth);
+ cm->y_dequant[0][1] = vp9_ac_quant(qindex, 0, cm->bit_depth);
+ cm->uv_dequant[0][0] = vp9_dc_quant(qindex, cm->uv_dc_delta_q,
+ cm->bit_depth);
+ cm->uv_dequant[0][1] = vp9_ac_quant(qindex, cm->uv_ac_delta_q,
+ cm->bit_depth);
}
+}
- // Loopfilter remaining rows in the frame.
- if (cm->lf.filter_level && !cm->skip_loop_filter) {
- LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
- winterface->sync(&pbi->lf_worker);
- lf_data->start = lf_data->stop;
- lf_data->stop = cm->mi_rows;
- winterface->execute(&pbi->lf_worker);
- }
-
- // Get last tile data.
- tile_data = pbi->tile_data + tile_cols * tile_rows - 1;
+static INTERP_FILTER read_interp_filter(struct vp9_read_bit_buffer *rb) {
+ const INTERP_FILTER literal_to_filter[] = { EIGHTTAP_SMOOTH,
+ EIGHTTAP,
+ EIGHTTAP_SHARP,
+ BILINEAR };
+ return vp9_rb_read_bit(rb) ? SWITCHABLE
+ : literal_to_filter[vp9_rb_read_literal(rb, 2)];
+}
- if (pbi->frame_parallel_decode)
- vp9_frameworker_broadcast(pbi->cur_buf, INT_MAX);
- return vp9_reader_find_end(&tile_data->bit_reader);
+void vp9_read_frame_size(struct vp9_read_bit_buffer *rb,
+ int *width, int *height) {
+ *width = vp9_rb_read_literal(rb, 16) + 1;
+ *height = vp9_rb_read_literal(rb, 16) + 1;
}
-static int tile_worker_hook(TileWorkerData *const tile_data,
- const TileInfo *const tile) {
- int mi_row, mi_col;
+static void setup_display_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+ cm->display_width = cm->width;
+ cm->display_height = cm->height;
+ if (vp9_rb_read_bit(rb))
+ vp9_read_frame_size(rb, &cm->display_width, &cm->display_height);
+}
- if (setjmp(tile_data->error_info.jmp)) {
- tile_data->error_info.setjmp = 0;
- tile_data->xd.corrupted = 1;
- return 0;
- }
+static void resize_mv_buffer(VP9_COMMON *cm) {
+ vpx_free(cm->cur_frame->mvs);
+ cm->cur_frame->mi_rows = cm->mi_rows;
+ cm->cur_frame->mi_cols = cm->mi_cols;
+ cm->cur_frame->mvs = (MV_REF *)vpx_calloc(cm->mi_rows * cm->mi_cols,
+ sizeof(*cm->cur_frame->mvs));
+}
- tile_data->error_info.setjmp = 1;
- tile_data->xd.error_info = &tile_data->error_info;
+static void resize_context_buffers(VP9_COMMON *cm, int width, int height) {
+#if CONFIG_SIZE_LIMIT
+ if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Dimensions of %dx%d beyond allowed size of %dx%d.",
+ width, height, DECODE_WIDTH_LIMIT, DECODE_HEIGHT_LIMIT);
+#endif
+ if (cm->width != width || cm->height != height) {
+ const int new_mi_rows =
+ ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
+ const int new_mi_cols =
+ ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2) >> MI_SIZE_LOG2;
- for (mi_row = tile->mi_row_start; mi_row < tile->mi_row_end;
- mi_row += MI_BLOCK_SIZE) {
- vp9_zero(tile_data->xd.left_context);
- vp9_zero(tile_data->xd.left_seg_context);
- for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
- mi_col += MI_BLOCK_SIZE) {
- decode_partition(tile_data->pbi, &tile_data->xd,
- tile, mi_row, mi_col, &tile_data->bit_reader,
- BLOCK_64X64);
+ // Allocations in vp9_alloc_context_buffers() depend on individual
+ // dimensions as well as the overall size.
+ if (new_mi_cols > cm->mi_cols || new_mi_rows > cm->mi_rows) {
+ if (vp9_alloc_context_buffers(cm, width, height))
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate context buffers");
+ } else {
+ vp9_set_mb_mi(cm, width, height);
}
+ vp9_init_context_buffers(cm);
+ cm->width = width;
+ cm->height = height;
+ }
+ if (cm->cur_frame->mvs == NULL || cm->mi_rows > cm->cur_frame->mi_rows ||
+ cm->mi_cols > cm->cur_frame->mi_cols) {
+ resize_mv_buffer(cm);
}
- return !tile_data->xd.corrupted;
}
-// sorts in descending order
-static int compare_tile_buffers(const void *a, const void *b) {
- const TileBuffer *const buf1 = (const TileBuffer*)a;
- const TileBuffer *const buf2 = (const TileBuffer*)b;
- return (int)(buf2->size - buf1->size);
-}
+static void setup_frame_size(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+ int width, height;
+ BufferPool *const pool = cm->buffer_pool;
+ vp9_read_frame_size(rb, &width, &height);
+ resize_context_buffers(cm, width, height);
+ setup_display_size(cm, rb);
-static const uint8_t *decode_tiles_mt(VP9Decoder *pbi,
- const uint8_t *data,
- const uint8_t *data_end) {
- VP9_COMMON *const cm = &pbi->common;
- const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
- const uint8_t *bit_reader_end = NULL;
- const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
- const int tile_cols = 1 << cm->log2_tile_cols;
- const int tile_rows = 1 << cm->log2_tile_rows;
- const int num_workers = MIN(pbi->max_threads & ~1, tile_cols);
- TileBuffer tile_buffers[1][1 << 6];
- int n;
- int final_worker = -1;
+ lock_buffer_pool(pool);
+ if (vp9_realloc_frame_buffer(
+ get_frame_new_buffer(cm), cm->width, cm->height,
+ cm->subsampling_x, cm->subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif
+ VP9_DEC_BORDER_IN_PIXELS,
+ cm->byte_alignment,
+ &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
+ pool->cb_priv)) {
+ unlock_buffer_pool(pool);
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate frame buffer");
+ }
+ unlock_buffer_pool(pool);
- assert(tile_cols <= (1 << 6));
- assert(tile_rows == 1);
- (void)tile_rows;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
+ pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
+}
- // TODO(jzern): See if we can remove the restriction of passing in max
- // threads to the decoder.
- if (pbi->num_tile_workers == 0) {
- const int num_threads = pbi->max_threads & ~1;
- int i;
- // TODO(jzern): Allocate one less worker, as in the current code we only
- // use num_threads - 1 workers.
- CHECK_MEM_ERROR(cm, pbi->tile_workers,
- vpx_malloc(num_threads * sizeof(*pbi->tile_workers)));
- // Ensure tile data offsets will be properly aligned. This may fail on
- // platforms without DECLARE_ALIGNED().
- assert((sizeof(*pbi->tile_worker_data) % 16) == 0);
- CHECK_MEM_ERROR(cm, pbi->tile_worker_data,
- vpx_memalign(32, num_threads *
- sizeof(*pbi->tile_worker_data)));
- CHECK_MEM_ERROR(cm, pbi->tile_worker_info,
- vpx_malloc(num_threads * sizeof(*pbi->tile_worker_info)));
- for (i = 0; i < num_threads; ++i) {
- VP9Worker *const worker = &pbi->tile_workers[i];
- ++pbi->num_tile_workers;
+static INLINE int valid_ref_frame_img_fmt(vpx_bit_depth_t ref_bit_depth,
+ int ref_xss, int ref_yss,
+ vpx_bit_depth_t this_bit_depth,
+ int this_xss, int this_yss) {
+ return ref_bit_depth == this_bit_depth && ref_xss == this_xss &&
+ ref_yss == this_yss;
+}
- winterface->init(worker);
- if (i < num_threads - 1 && !winterface->reset(worker)) {
- vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
- "Tile decoder thread creation failed");
- }
+static void setup_frame_size_with_refs(VP9_COMMON *cm,
+ struct vp9_read_bit_buffer *rb) {
+ int width, height;
+ int found = 0, i;
+ int has_valid_ref_frame = 0;
+ BufferPool *const pool = cm->buffer_pool;
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ if (vp9_rb_read_bit(rb)) {
+ YV12_BUFFER_CONFIG *const buf = cm->frame_refs[i].buf;
+ width = buf->y_crop_width;
+ height = buf->y_crop_height;
+ found = 1;
+ break;
}
}
- // Reset tile decoding hook
- for (n = 0; n < num_workers; ++n) {
- VP9Worker *const worker = &pbi->tile_workers[n];
- winterface->sync(worker);
- worker->hook = (VP9WorkerHook)tile_worker_hook;
- worker->data1 = &pbi->tile_worker_data[n];
- worker->data2 = &pbi->tile_worker_info[n];
- }
-
- // Note: this memset assumes above_context[0], [1] and [2]
- // are allocated as part of the same buffer.
- memset(cm->above_context, 0,
- sizeof(*cm->above_context) * MAX_MB_PLANE * 2 * aligned_mi_cols);
- memset(cm->above_seg_context, 0,
- sizeof(*cm->above_seg_context) * aligned_mi_cols);
-
- // Load tile data into tile_buffers
- get_tile_buffers(pbi, data, data_end, tile_cols, tile_rows, tile_buffers);
+ if (!found)
+ vp9_read_frame_size(rb, &width, &height);
- // Sort the buffers based on size in descending order.
- qsort(tile_buffers[0], tile_cols, sizeof(tile_buffers[0][0]),
- compare_tile_buffers);
+ if (width <= 0 || height <= 0)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Invalid frame size");
- // Rearrange the tile buffers such that per-tile group the largest, and
- // presumably the most difficult, tile will be decoded in the main thread.
- // This should help minimize the number of instances where the main thread is
- // waiting for a worker to complete.
- {
- int group_start = 0;
- while (group_start < tile_cols) {
- const TileBuffer largest = tile_buffers[0][group_start];
- const int group_end = MIN(group_start + num_workers, tile_cols) - 1;
- memmove(tile_buffers[0] + group_start, tile_buffers[0] + group_start + 1,
- (group_end - group_start) * sizeof(tile_buffers[0][0]));
- tile_buffers[0][group_end] = largest;
- group_start = group_end + 1;
- }
+ // Check to make sure at least one of frames that this frame references
+ // has valid dimensions.
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ has_valid_ref_frame |= valid_ref_frame_size(ref_frame->buf->y_crop_width,
+ ref_frame->buf->y_crop_height,
+ width, height);
+ }
+ if (!has_valid_ref_frame)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Referenced frame has invalid size");
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ if (!valid_ref_frame_img_fmt(
+ ref_frame->buf->bit_depth,
+ ref_frame->buf->subsampling_x,
+ ref_frame->buf->subsampling_y,
+ cm->bit_depth,
+ cm->subsampling_x,
+ cm->subsampling_y))
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Referenced frame has incompatible color format");
}
- // Initialize thread frame counts.
- if (!cm->frame_parallel_decoding_mode) {
- int i;
+ resize_context_buffers(cm, width, height);
+ setup_display_size(cm, rb);
- for (i = 0; i < num_workers; ++i) {
- TileWorkerData *const tile_data =
- (TileWorkerData*)pbi->tile_workers[i].data1;
- vp9_zero(tile_data->counts);
- }
+ lock_buffer_pool(pool);
+ if (vp9_realloc_frame_buffer(
+ get_frame_new_buffer(cm), cm->width, cm->height,
+ cm->subsampling_x, cm->subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif
+ VP9_DEC_BORDER_IN_PIXELS,
+ cm->byte_alignment,
+ &pool->frame_bufs[cm->new_fb_idx].raw_frame_buffer, pool->get_fb_cb,
+ pool->cb_priv)) {
+ unlock_buffer_pool(pool);
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate frame buffer");
}
+ unlock_buffer_pool(pool);
- n = 0;
- while (n < tile_cols) {
- int i;
- for (i = 0; i < num_workers && n < tile_cols; ++i) {
- VP9Worker *const worker = &pbi->tile_workers[i];
- TileWorkerData *const tile_data = (TileWorkerData*)worker->data1;
- TileInfo *const tile = (TileInfo*)worker->data2;
- TileBuffer *const buf = &tile_buffers[0][n];
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_x = cm->subsampling_x;
+ pool->frame_bufs[cm->new_fb_idx].buf.subsampling_y = cm->subsampling_y;
+ pool->frame_bufs[cm->new_fb_idx].buf.bit_depth = (unsigned int)cm->bit_depth;
+ pool->frame_bufs[cm->new_fb_idx].buf.color_space = cm->color_space;
+}
- tile_data->pbi = pbi;
- tile_data->xd = pbi->mb;
- tile_data->xd.corrupted = 0;
- tile_data->xd.counts = cm->frame_parallel_decoding_mode ?
- 0 : &tile_data->counts;
- vp9_tile_init(tile, cm, 0, buf->col);
- setup_token_decoder(buf->data, data_end, buf->size, &cm->error,
- &tile_data->bit_reader, pbi->decrypt_cb,
- pbi->decrypt_state);
- init_macroblockd(cm, &tile_data->xd);
+static void setup_tile_info(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+ int min_log2_tile_cols, max_log2_tile_cols, max_ones;
+ vp9_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
- worker->had_error = 0;
- if (i == num_workers - 1 || n == tile_cols - 1) {
- winterface->execute(worker);
- } else {
- winterface->launch(worker);
- }
+ // columns
+ max_ones = max_log2_tile_cols - min_log2_tile_cols;
+ cm->log2_tile_cols = min_log2_tile_cols;
+ while (max_ones-- && vp9_rb_read_bit(rb))
+ cm->log2_tile_cols++;
- if (buf->col == tile_cols - 1) {
- final_worker = i;
- }
+ if (cm->log2_tile_cols > 6)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Invalid number of tile columns");
- ++n;
- }
+ // rows
+ cm->log2_tile_rows = vp9_rb_read_bit(rb);
+ if (cm->log2_tile_rows)
+ cm->log2_tile_rows += vp9_rb_read_bit(rb);
+}
- for (; i > 0; --i) {
- VP9Worker *const worker = &pbi->tile_workers[i - 1];
- // TODO(jzern): The tile may have specific error data associated with
- // its vpx_internal_error_info which could be propagated to the main info
- // in cm. Additionally once the threads have been synced and an error is
- // detected, there's no point in continuing to decode tiles.
- pbi->mb.corrupted |= !winterface->sync(worker);
- }
- if (final_worker > -1) {
- TileWorkerData *const tile_data =
- (TileWorkerData*)pbi->tile_workers[final_worker].data1;
- bit_reader_end = vp9_reader_find_end(&tile_data->bit_reader);
- final_worker = -1;
- }
+typedef struct TileBuffer {
+ const uint8_t *data;
+ size_t size;
+ int col; // only used with multi-threaded decoding
+} TileBuffer;
- // Accumulate thread frame counts.
- if (n >= tile_cols && !cm->frame_parallel_decoding_mode) {
- for (i = 0; i < num_workers; ++i) {
- TileWorkerData *const tile_data =
- (TileWorkerData*)pbi->tile_workers[i].data1;
- vp9_accumulate_frame_counts(cm, &tile_data->counts, 1);
- }
+// Reads the next tile returning its size and adjusting '*data' accordingly
+// based on 'is_last'.
+static void get_tile_buffer(const uint8_t *const data_end,
+ int is_last,
+ struct vpx_internal_error_info *error_info,
+ const uint8_t **data,
+ vpx_decrypt_cb decrypt_cb, void *decrypt_state,
+ TileBuffer *buf) {
+ size_t size;
+
+ if (!is_last) {
+ if (!read_is_valid(*data, 4, data_end))
+ vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile length");
+
+ if (decrypt_cb) {
+ uint8_t be_data[4];
+ decrypt_cb(decrypt_state, *data, be_data, 4);
+ size = mem_get_be32(be_data);
+ } else {
+ size = mem_get_be32(*data);
}
- }
+ *data += 4;
- return bit_reader_end;
-}
+ if (size > (size_t)(data_end - *data))
+ vpx_internal_error(error_info, VPX_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt tile size");
+ } else {
+ size = data_end - *data;
+ }
-static void error_handler(void *data) {
- VP9_COMMON *const cm = (VP9_COMMON *)data;
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME, "Truncated packet");
-}
+ buf->data = *data;
+ buf->size = size;
-int vp9_read_sync_code(struct vp9_read_bit_buffer *const rb) {
- return vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_0 &&
- vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_1 &&
- vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_2;
+ *data += size;
}
-BITSTREAM_PROFILE vp9_read_profile(struct vp9_read_bit_buffer *rb) {
- int profile = vp9_rb_read_bit(rb);
- profile |= vp9_rb_read_bit(rb) << 1;
- if (profile > 2)
- profile += vp9_rb_read_bit(rb);
- return (BITSTREAM_PROFILE) profile;
-}
+static void get_tile_buffers(VP9Decoder *pbi,
+ const uint8_t *data, const uint8_t *data_end,
+ int tile_cols, int tile_rows,
+ TileBuffer (*tile_buffers)[1 << 6]) {
+ int r, c;
-static void read_bitdepth_colorspace_sampling(
- VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
- if (cm->profile >= PROFILE_2) {
- cm->bit_depth = vp9_rb_read_bit(rb) ? VPX_BITS_12 : VPX_BITS_10;
-#if CONFIG_VP9_HIGHBITDEPTH
- cm->use_highbitdepth = 1;
-#endif
- } else {
- cm->bit_depth = VPX_BITS_8;
-#if CONFIG_VP9_HIGHBITDEPTH
- cm->use_highbitdepth = 0;
-#endif
- }
- cm->color_space = vp9_rb_read_literal(rb, 3);
- if (cm->color_space != VPX_CS_SRGB) {
- vp9_rb_read_bit(rb); // [16,235] (including xvycc) vs [0,255] range
- if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
- cm->subsampling_x = vp9_rb_read_bit(rb);
- cm->subsampling_y = vp9_rb_read_bit(rb);
- if (cm->subsampling_x == 1 && cm->subsampling_y == 1)
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "4:2:0 color not supported in profile 1 or 3");
- if (vp9_rb_read_bit(rb))
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Reserved bit set");
- } else {
- cm->subsampling_y = cm->subsampling_x = 1;
- }
- } else {
- if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
- // Note if colorspace is SRGB then 4:4:4 chroma sampling is assumed.
- // 4:2:2 or 4:4:0 chroma sampling is not allowed.
- cm->subsampling_y = cm->subsampling_x = 0;
- if (vp9_rb_read_bit(rb))
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Reserved bit set");
- } else {
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "4:4:4 color not supported in profile 0 or 2");
+ for (r = 0; r < tile_rows; ++r) {
+ for (c = 0; c < tile_cols; ++c) {
+ const int is_last = (r == tile_rows - 1) && (c == tile_cols - 1);
+ TileBuffer *const buf = &tile_buffers[r][c];
+ buf->col = c;
+ get_tile_buffer(data_end, is_last, &pbi->common.error, &data,
+ pbi->decrypt_cb, pbi->decrypt_state, buf);
}
}
}
-static size_t read_uncompressed_header(VP9Decoder *pbi,
- struct vp9_read_bit_buffer *rb) {
+static const uint8_t *decode_tiles(VP9Decoder *pbi,
+ const uint8_t *data,
+ const uint8_t *data_end) {
VP9_COMMON *const cm = &pbi->common;
- BufferPool *const pool = cm->buffer_pool;
- RefCntBuffer *const frame_bufs = pool->frame_bufs;
- int i, mask, ref_index = 0;
- size_t sz;
+ const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+ const int aligned_cols = mi_cols_aligned_to_sb(cm->mi_cols);
+ const int tile_cols = 1 << cm->log2_tile_cols;
+ const int tile_rows = 1 << cm->log2_tile_rows;
+ TileBuffer tile_buffers[4][1 << 6];
+ int tile_row, tile_col;
+ int mi_row, mi_col;
+ TileData *tile_data = NULL;
- cm->last_frame_type = cm->frame_type;
+ if (cm->lf.filter_level && !cm->skip_loop_filter &&
+ pbi->lf_worker.data1 == NULL) {
+ CHECK_MEM_ERROR(cm, pbi->lf_worker.data1,
+ vpx_memalign(32, sizeof(LFWorkerData)));
+ pbi->lf_worker.hook = (VP9WorkerHook)vp9_loop_filter_worker;
+ if (pbi->max_threads > 1 && !winterface->reset(&pbi->lf_worker)) {
+ vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
+ "Loop filter thread creation failed");
+ }
+ }
- if (vp9_rb_read_literal(rb, 2) != VP9_FRAME_MARKER)
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Invalid frame marker");
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
+ // Be sure to sync as we might be resuming after a failed frame decode.
+ winterface->sync(&pbi->lf_worker);
+ vp9_loop_filter_data_reset(lf_data, get_frame_new_buffer(cm), cm,
+ pbi->mb.plane);
+ }
+
+ assert(tile_rows <= 4);
+ assert(tile_cols <= (1 << 6));
- cm->profile = vp9_read_profile(rb);
+ // Note: this memset assumes above_context[0], [1] and [2]
+ // are allocated as part of the same buffer.
+ memset(cm->above_context, 0,
+ sizeof(*cm->above_context) * MAX_MB_PLANE * 2 * aligned_cols);
- if (cm->profile >= MAX_PROFILES)
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Unsupported bitstream profile");
+ memset(cm->above_seg_context, 0,
+ sizeof(*cm->above_seg_context) * aligned_cols);
- cm->show_existing_frame = vp9_rb_read_bit(rb);
- if (cm->show_existing_frame) {
- // Show an existing frame directly.
- const int frame_to_show = cm->ref_frame_map[vp9_rb_read_literal(rb, 3)];
- lock_buffer_pool(pool);
- if (frame_to_show < 0 || frame_bufs[frame_to_show].ref_count < 1) {
- unlock_buffer_pool(pool);
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Buffer %d does not contain a decoded frame",
- frame_to_show);
- }
+ get_tile_buffers(pbi, data, data_end, tile_cols, tile_rows, tile_buffers);
- ref_cnt_fb(frame_bufs, &cm->new_fb_idx, frame_to_show);
- unlock_buffer_pool(pool);
- pbi->refresh_frame_flags = 0;
- cm->lf.filter_level = 0;
- cm->show_frame = 1;
+ if (pbi->tile_data == NULL ||
+ (tile_cols * tile_rows) != pbi->total_tiles) {
+ vpx_free(pbi->tile_data);
+ CHECK_MEM_ERROR(
+ cm,
+ pbi->tile_data,
+ vpx_memalign(32, tile_cols * tile_rows * (sizeof(*pbi->tile_data))));
+ pbi->total_tiles = tile_rows * tile_cols;
+ }
- if (pbi->frame_parallel_decode) {
- for (i = 0; i < REF_FRAMES; ++i)
- cm->next_ref_frame_map[i] = cm->ref_frame_map[i];
+ // Load all tile information into tile_data.
+ for (tile_row = 0; tile_row < tile_rows; ++tile_row) {
+ for (tile_col = 0; tile_col < tile_cols; ++tile_col) {
+ TileInfo tile;
+ const TileBuffer *const buf = &tile_buffers[tile_row][tile_col];
+ tile_data = pbi->tile_data + tile_cols * tile_row + tile_col;
+ tile_data->cm = cm;
+ tile_data->xd = pbi->mb;
+ tile_data->xd.corrupted = 0;
+ tile_data->xd.counts = cm->frame_parallel_decoding_mode ?
+ NULL : &cm->counts;
+ vp9_tile_init(&tile, tile_data->cm, tile_row, tile_col);
+ setup_token_decoder(buf->data, data_end, buf->size, &cm->error,
+ &tile_data->bit_reader, pbi->decrypt_cb,
+ pbi->decrypt_state);
+ init_macroblockd(cm, &tile_data->xd);
}
- return 0;
}
- cm->frame_type = (FRAME_TYPE) vp9_rb_read_bit(rb);
- cm->show_frame = vp9_rb_read_bit(rb);
- cm->error_resilient_mode = vp9_rb_read_bit(rb);
+ for (tile_row = 0; tile_row < tile_rows; ++tile_row) {
+ TileInfo tile;
+ vp9_tile_set_row(&tile, cm, tile_row);
+ for (mi_row = tile.mi_row_start; mi_row < tile.mi_row_end;
+ mi_row += MI_BLOCK_SIZE) {
+ for (tile_col = 0; tile_col < tile_cols; ++tile_col) {
+ const int col = pbi->inv_tile_order ?
+ tile_cols - tile_col - 1 : tile_col;
+ tile_data = pbi->tile_data + tile_cols * tile_row + col;
+ vp9_tile_set_col(&tile, tile_data->cm, col);
+ vp9_zero(tile_data->xd.left_context);
+ vp9_zero(tile_data->xd.left_seg_context);
+ for (mi_col = tile.mi_col_start; mi_col < tile.mi_col_end;
+ mi_col += MI_BLOCK_SIZE) {
+ decode_partition(pbi, &tile_data->xd, &tile, mi_row,
+ mi_col, &tile_data->bit_reader, BLOCK_64X64);
+ }
+ pbi->mb.corrupted |= tile_data->xd.corrupted;
+ if (pbi->mb.corrupted)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Failed to decode tile data");
+ }
+ // Loopfilter one row.
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ const int lf_start = mi_row - MI_BLOCK_SIZE;
+ LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
- if (cm->frame_type == KEY_FRAME) {
- if (!vp9_read_sync_code(rb))
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Invalid frame sync code");
+ // delay the loopfilter by 1 macroblock row.
+ if (lf_start < 0) continue;
- read_bitdepth_colorspace_sampling(cm, rb);
- pbi->refresh_frame_flags = (1 << REF_FRAMES) - 1;
+ // decoding has completed: finish up the loop filter in this thread.
+ if (mi_row + MI_BLOCK_SIZE >= cm->mi_rows) continue;
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- cm->frame_refs[i].idx = INVALID_IDX;
- cm->frame_refs[i].buf = NULL;
+ winterface->sync(&pbi->lf_worker);
+ lf_data->start = lf_start;
+ lf_data->stop = mi_row;
+ if (pbi->max_threads > 1) {
+ winterface->launch(&pbi->lf_worker);
+ } else {
+ winterface->execute(&pbi->lf_worker);
+ }
+ }
+ // After loopfiltering, the last 7 row pixels in each superblock row may
+ // still be changed by the longest loopfilter of the next superblock
+ // row.
+ if (pbi->frame_parallel_decode)
+ vp9_frameworker_broadcast(pbi->cur_buf,
+ mi_row << MI_BLOCK_SIZE_LOG2);
}
+ }
- setup_frame_size(cm, rb);
- if (pbi->need_resync) {
- memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
- pbi->need_resync = 0;
- }
- } else {
- cm->intra_only = cm->show_frame ? 0 : vp9_rb_read_bit(rb);
+ // Loopfilter remaining rows in the frame.
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
+ winterface->sync(&pbi->lf_worker);
+ lf_data->start = lf_data->stop;
+ lf_data->stop = cm->mi_rows;
+ winterface->execute(&pbi->lf_worker);
+ }
- cm->reset_frame_context = cm->error_resilient_mode ?
- 0 : vp9_rb_read_literal(rb, 2);
+ // Get last tile data.
+ tile_data = pbi->tile_data + tile_cols * tile_rows - 1;
- if (cm->intra_only) {
- if (!vp9_read_sync_code(rb))
- vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
- "Invalid frame sync code");
- if (cm->profile > PROFILE_0) {
- read_bitdepth_colorspace_sampling(cm, rb);
- } else {
- // NOTE: The intra-only frame header does not include the specification
- // of either the color format or color sub-sampling in profile 0. VP9
- // specifies that the default color format should be YUV 4:2:0 in this
- // case (normative).
- cm->color_space = VPX_CS_BT_601;
- cm->subsampling_y = cm->subsampling_x = 1;
- cm->bit_depth = VPX_BITS_8;
-#if CONFIG_VP9_HIGHBITDEPTH
- cm->use_highbitdepth = 0;
-#endif
- }
+ if (pbi->frame_parallel_decode)
+ vp9_frameworker_broadcast(pbi->cur_buf, INT_MAX);
+ return vp9_reader_find_end(&tile_data->bit_reader);
+}
- pbi->refresh_frame_flags = vp9_rb_read_literal(rb, REF_FRAMES);
- setup_frame_size(cm, rb);
- if (pbi->need_resync) {
- memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
- pbi->need_resync = 0;
- }
- } else if (pbi->need_resync != 1) { /* Skip if need resync */
- pbi->refresh_frame_flags = vp9_rb_read_literal(rb, REF_FRAMES);
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- const int ref = vp9_rb_read_literal(rb, REF_FRAMES_LOG2);
- const int idx = cm->ref_frame_map[ref];
- RefBuffer *const ref_frame = &cm->frame_refs[i];
- ref_frame->idx = idx;
- ref_frame->buf = &frame_bufs[idx].buf;
- cm->ref_frame_sign_bias[LAST_FRAME + i] = vp9_rb_read_bit(rb);
- }
+static int tile_worker_hook(TileWorkerData *const tile_data,
+ const TileInfo *const tile) {
+ int mi_row, mi_col;
- setup_frame_size_with_refs(cm, rb);
+ if (setjmp(tile_data->error_info.jmp)) {
+ tile_data->error_info.setjmp = 0;
+ tile_data->xd.corrupted = 1;
+ return 0;
+ }
- cm->allow_high_precision_mv = vp9_rb_read_bit(rb);
- cm->interp_filter = read_interp_filter(rb);
+ tile_data->error_info.setjmp = 1;
+ tile_data->xd.error_info = &tile_data->error_info;
- for (i = 0; i < REFS_PER_FRAME; ++i) {
- RefBuffer *const ref_buf = &cm->frame_refs[i];
-#if CONFIG_VP9_HIGHBITDEPTH
- vp9_setup_scale_factors_for_frame(&ref_buf->sf,
- ref_buf->buf->y_crop_width,
- ref_buf->buf->y_crop_height,
- cm->width, cm->height,
- cm->use_highbitdepth);
-#else
- vp9_setup_scale_factors_for_frame(&ref_buf->sf,
- ref_buf->buf->y_crop_width,
- ref_buf->buf->y_crop_height,
- cm->width, cm->height);
-#endif
- }
+ for (mi_row = tile->mi_row_start; mi_row < tile->mi_row_end;
+ mi_row += MI_BLOCK_SIZE) {
+ vp9_zero(tile_data->xd.left_context);
+ vp9_zero(tile_data->xd.left_seg_context);
+ for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
+ mi_col += MI_BLOCK_SIZE) {
+ decode_partition(tile_data->pbi, &tile_data->xd,
+ tile, mi_row, mi_col, &tile_data->bit_reader,
+ BLOCK_64X64);
}
}
-#if CONFIG_VP9_HIGHBITDEPTH
- get_frame_new_buffer(cm)->bit_depth = cm->bit_depth;
-#endif
- get_frame_new_buffer(cm)->color_space = cm->color_space;
+ return !tile_data->xd.corrupted;
+}
- if (pbi->need_resync) {
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Keyframe / intra-only frame required to reset decoder"
- " state");
- }
+// sorts in descending order
+static int compare_tile_buffers(const void *a, const void *b) {
+ const TileBuffer *const buf1 = (const TileBuffer*)a;
+ const TileBuffer *const buf2 = (const TileBuffer*)b;
+ return (int)(buf2->size - buf1->size);
+}
- if (!cm->error_resilient_mode) {
- cm->refresh_frame_context = vp9_rb_read_bit(rb);
- cm->frame_parallel_decoding_mode = vp9_rb_read_bit(rb);
- } else {
- cm->refresh_frame_context = 0;
- cm->frame_parallel_decoding_mode = 1;
- }
+static const uint8_t *decode_tiles_mt(VP9Decoder *pbi,
+ const uint8_t *data,
+ const uint8_t *data_end) {
+ VP9_COMMON *const cm = &pbi->common;
+ const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
+ const uint8_t *bit_reader_end = NULL;
+ const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
+ const int tile_cols = 1 << cm->log2_tile_cols;
+ const int tile_rows = 1 << cm->log2_tile_rows;
+ const int num_workers = MIN(pbi->max_threads & ~1, tile_cols);
+ TileBuffer tile_buffers[1][1 << 6];
+ int n;
+ int final_worker = -1;
- // This flag will be overridden by the call to vp9_setup_past_independence
- // below, forcing the use of context 0 for those frame types.
- cm->frame_context_idx = vp9_rb_read_literal(rb, FRAME_CONTEXTS_LOG2);
+ assert(tile_cols <= (1 << 6));
+ assert(tile_rows == 1);
+ (void)tile_rows;
+
+ // TODO(jzern): See if we can remove the restriction of passing in max
+ // threads to the decoder.
+ if (pbi->num_tile_workers == 0) {
+ const int num_threads = pbi->max_threads & ~1;
+ int i;
+ // TODO(jzern): Allocate one less worker, as in the current code we only
+ // use num_threads - 1 workers.
+ CHECK_MEM_ERROR(cm, pbi->tile_workers,
+ vpx_malloc(num_threads * sizeof(*pbi->tile_workers)));
+ // Ensure tile data offsets will be properly aligned. This may fail on
+ // platforms without DECLARE_ALIGNED().
+ assert((sizeof(*pbi->tile_worker_data) % 16) == 0);
+ CHECK_MEM_ERROR(cm, pbi->tile_worker_data,
+ vpx_memalign(32, num_threads *
+ sizeof(*pbi->tile_worker_data)));
+ CHECK_MEM_ERROR(cm, pbi->tile_worker_info,
+ vpx_malloc(num_threads * sizeof(*pbi->tile_worker_info)));
+ for (i = 0; i < num_threads; ++i) {
+ VP9Worker *const worker = &pbi->tile_workers[i];
+ ++pbi->num_tile_workers;
- // Generate next_ref_frame_map.
- lock_buffer_pool(pool);
- for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
- if (mask & 1) {
- cm->next_ref_frame_map[ref_index] = cm->new_fb_idx;
- ++frame_bufs[cm->new_fb_idx].ref_count;
- } else {
- cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
+ winterface->init(worker);
+ if (i < num_threads - 1 && !winterface->reset(worker)) {
+ vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
+ "Tile decoder thread creation failed");
+ }
}
- // Current thread holds the reference frame.
- if (cm->ref_frame_map[ref_index] >= 0)
- ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
- ++ref_index;
}
- for (; ref_index < REF_FRAMES; ++ref_index) {
- cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
- // Current thread holds the reference frame.
- if (cm->ref_frame_map[ref_index] >= 0)
- ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
+ // Reset tile decoding hook
+ for (n = 0; n < num_workers; ++n) {
+ VP9Worker *const worker = &pbi->tile_workers[n];
+ winterface->sync(worker);
+ worker->hook = (VP9WorkerHook)tile_worker_hook;
+ worker->data1 = &pbi->tile_worker_data[n];
+ worker->data2 = &pbi->tile_worker_info[n];
}
- unlock_buffer_pool(pool);
- pbi->hold_ref_buf = 1;
- if (frame_is_intra_only(cm) || cm->error_resilient_mode)
- vp9_setup_past_independence(cm);
-
- setup_loopfilter(&cm->lf, rb);
- setup_quantization(cm, &pbi->mb, rb);
- setup_segmentation(&cm->seg, rb);
- setup_segmentation_dequant(cm);
-
- setup_tile_info(cm, rb);
- sz = vp9_rb_read_literal(rb, 16);
+ // Note: this memset assumes above_context[0], [1] and [2]
+ // are allocated as part of the same buffer.
+ memset(cm->above_context, 0,
+ sizeof(*cm->above_context) * MAX_MB_PLANE * 2 * aligned_mi_cols);
+ memset(cm->above_seg_context, 0,
+ sizeof(*cm->above_seg_context) * aligned_mi_cols);
- if (sz == 0)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Invalid header size");
+ // Load tile data into tile_buffers
+ get_tile_buffers(pbi, data, data_end, tile_cols, tile_rows, tile_buffers);
- return sz;
-}
+ // Sort the buffers based on size in descending order.
+ qsort(tile_buffers[0], tile_cols, sizeof(tile_buffers[0][0]),
+ compare_tile_buffers);
-static int read_compressed_header(VP9Decoder *pbi, const uint8_t *data,
- size_t partition_size) {
- VP9_COMMON *const cm = &pbi->common;
- MACROBLOCKD *const xd = &pbi->mb;
- FRAME_CONTEXT *const fc = cm->fc;
- vp9_reader r;
- int k;
+ // Rearrange the tile buffers such that per-tile group the largest, and
+ // presumably the most difficult, tile will be decoded in the main thread.
+ // This should help minimize the number of instances where the main thread is
+ // waiting for a worker to complete.
+ {
+ int group_start = 0;
+ while (group_start < tile_cols) {
+ const TileBuffer largest = tile_buffers[0][group_start];
+ const int group_end = MIN(group_start + num_workers, tile_cols) - 1;
+ memmove(tile_buffers[0] + group_start, tile_buffers[0] + group_start + 1,
+ (group_end - group_start) * sizeof(tile_buffers[0][0]));
+ tile_buffers[0][group_end] = largest;
+ group_start = group_end + 1;
+ }
+ }
- if (vp9_reader_init(&r, data, partition_size, pbi->decrypt_cb,
- pbi->decrypt_state))
- vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
- "Failed to allocate bool decoder 0");
+ // Initialize thread frame counts.
+ if (!cm->frame_parallel_decoding_mode) {
+ int i;
- cm->tx_mode = xd->lossless ? ONLY_4X4 : read_tx_mode(&r);
- if (cm->tx_mode == TX_MODE_SELECT)
- read_tx_mode_probs(&fc->tx_probs, &r);
- read_coef_probs(fc, cm->tx_mode, &r);
+ for (i = 0; i < num_workers; ++i) {
+ TileWorkerData *const tile_data =
+ (TileWorkerData*)pbi->tile_workers[i].data1;
+ vp9_zero(tile_data->counts);
+ }
+ }
- for (k = 0; k < SKIP_CONTEXTS; ++k)
- vp9_diff_update_prob(&r, &fc->skip_probs[k]);
+ n = 0;
+ while (n < tile_cols) {
+ int i;
+ for (i = 0; i < num_workers && n < tile_cols; ++i) {
+ VP9Worker *const worker = &pbi->tile_workers[i];
+ TileWorkerData *const tile_data = (TileWorkerData*)worker->data1;
+ TileInfo *const tile = (TileInfo*)worker->data2;
+ TileBuffer *const buf = &tile_buffers[0][n];
- if (!frame_is_intra_only(cm)) {
- nmv_context *const nmvc = &fc->nmvc;
- int i, j;
+ tile_data->pbi = pbi;
+ tile_data->xd = pbi->mb;
+ tile_data->xd.corrupted = 0;
+ tile_data->xd.counts = cm->frame_parallel_decoding_mode ?
+ 0 : &tile_data->counts;
+ vp9_tile_init(tile, cm, 0, buf->col);
+ setup_token_decoder(buf->data, data_end, buf->size, &cm->error,
+ &tile_data->bit_reader, pbi->decrypt_cb,
+ pbi->decrypt_state);
+ init_macroblockd(cm, &tile_data->xd);
- read_inter_mode_probs(fc, &r);
+ worker->had_error = 0;
+ if (i == num_workers - 1 || n == tile_cols - 1) {
+ winterface->execute(worker);
+ } else {
+ winterface->launch(worker);
+ }
- if (cm->interp_filter == SWITCHABLE)
- read_switchable_interp_probs(fc, &r);
+ if (buf->col == tile_cols - 1) {
+ final_worker = i;
+ }
- for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
- vp9_diff_update_prob(&r, &fc->intra_inter_prob[i]);
+ ++n;
+ }
- cm->reference_mode = read_frame_reference_mode(cm, &r);
- if (cm->reference_mode != SINGLE_REFERENCE)
- setup_compound_reference_mode(cm);
- read_frame_reference_mode_probs(cm, &r);
+ for (; i > 0; --i) {
+ VP9Worker *const worker = &pbi->tile_workers[i - 1];
+ // TODO(jzern): The tile may have specific error data associated with
+ // its vpx_internal_error_info which could be propagated to the main info
+ // in cm. Additionally once the threads have been synced and an error is
+ // detected, there's no point in continuing to decode tiles.
+ pbi->mb.corrupted |= !winterface->sync(worker);
+ }
+ if (final_worker > -1) {
+ TileWorkerData *const tile_data =
+ (TileWorkerData*)pbi->tile_workers[final_worker].data1;
+ bit_reader_end = vp9_reader_find_end(&tile_data->bit_reader);
+ final_worker = -1;
+ }
- for (j = 0; j < BLOCK_SIZE_GROUPS; j++)
- for (i = 0; i < INTRA_MODES - 1; ++i)
- vp9_diff_update_prob(&r, &fc->y_mode_prob[j][i]);
+ // Accumulate thread frame counts.
+ if (n >= tile_cols && !cm->frame_parallel_decoding_mode) {
+ for (i = 0; i < num_workers; ++i) {
+ TileWorkerData *const tile_data =
+ (TileWorkerData*)pbi->tile_workers[i].data1;
+ vp9_accumulate_frame_counts(cm, &tile_data->counts, 1);
+ }
+ }
+ }
- for (j = 0; j < PARTITION_CONTEXTS; ++j)
- for (i = 0; i < PARTITION_TYPES - 1; ++i)
- vp9_diff_update_prob(&r, &fc->partition_prob[j][i]);
+ return bit_reader_end;
+}
- read_mv_probs(nmvc, cm->allow_high_precision_mv, &r);
- }
+static void error_handler(void *data) {
+ VP9_COMMON *const cm = (VP9_COMMON *)data;
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME, "Truncated packet");
+}
- return vp9_reader_has_error(&r);
+int vp9_read_sync_code(struct vp9_read_bit_buffer *const rb) {
+ return vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_0 &&
+ vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_1 &&
+ vp9_rb_read_literal(rb, 8) == VP9_SYNC_CODE_2;
}
-#ifdef NDEBUG
-#define debug_check_frame_counts(cm) (void)0
-#else // !NDEBUG
-// Counts should only be incremented when frame_parallel_decoding_mode and
-// error_resilient_mode are disabled.
-static void debug_check_frame_counts(const VP9_COMMON *const cm) {
- FRAME_COUNTS zero_counts;
- vp9_zero(zero_counts);
- assert(cm->frame_parallel_decoding_mode || cm->error_resilient_mode);
- assert(!memcmp(cm->counts.y_mode, zero_counts.y_mode,
- sizeof(cm->counts.y_mode)));
- assert(!memcmp(cm->counts.uv_mode, zero_counts.uv_mode,
- sizeof(cm->counts.uv_mode)));
- assert(!memcmp(cm->counts.partition, zero_counts.partition,
- sizeof(cm->counts.partition)));
- assert(!memcmp(cm->counts.coef, zero_counts.coef,
- sizeof(cm->counts.coef)));
- assert(!memcmp(cm->counts.eob_branch, zero_counts.eob_branch,
- sizeof(cm->counts.eob_branch)));
- assert(!memcmp(cm->counts.switchable_interp, zero_counts.switchable_interp,
- sizeof(cm->counts.switchable_interp)));
- assert(!memcmp(cm->counts.inter_mode, zero_counts.inter_mode,
- sizeof(cm->counts.inter_mode)));
- assert(!memcmp(cm->counts.intra_inter, zero_counts.intra_inter,
- sizeof(cm->counts.intra_inter)));
- assert(!memcmp(cm->counts.comp_inter, zero_counts.comp_inter,
- sizeof(cm->counts.comp_inter)));
- assert(!memcmp(cm->counts.single_ref, zero_counts.single_ref,
- sizeof(cm->counts.single_ref)));
- assert(!memcmp(cm->counts.comp_ref, zero_counts.comp_ref,
- sizeof(cm->counts.comp_ref)));
- assert(!memcmp(&cm->counts.tx, &zero_counts.tx, sizeof(cm->counts.tx)));
- assert(!memcmp(cm->counts.skip, zero_counts.skip, sizeof(cm->counts.skip)));
- assert(!memcmp(&cm->counts.mv, &zero_counts.mv, sizeof(cm->counts.mv)));
+BITSTREAM_PROFILE vp9_read_profile(struct vp9_read_bit_buffer *rb) {
+ int profile = vp9_rb_read_bit(rb);
+ profile |= vp9_rb_read_bit(rb) << 1;
+ if (profile > 2)
+ profile += vp9_rb_read_bit(rb);
+ return (BITSTREAM_PROFILE) profile;
}
-#endif // NDEBUG
-static struct vp9_read_bit_buffer* init_read_bit_buffer(
- VP9Decoder *pbi,
- struct vp9_read_bit_buffer *rb,
- const uint8_t *data,
- const uint8_t *data_end,
- uint8_t *clear_data /* buffer size MAX_VP9_HEADER_SIZE */) {
- rb->bit_offset = 0;
- rb->error_handler = error_handler;
- rb->error_handler_data = &pbi->common;
- if (pbi->decrypt_cb) {
- const int n = (int)MIN(MAX_VP9_HEADER_SIZE, data_end - data);
- pbi->decrypt_cb(pbi->decrypt_state, data, clear_data, n);
- rb->bit_buffer = clear_data;
- rb->bit_buffer_end = clear_data + n;
+static void read_bitdepth_colorspace_sampling(
+ VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
+ if (cm->profile >= PROFILE_2) {
+ cm->bit_depth = vp9_rb_read_bit(rb) ? VPX_BITS_12 : VPX_BITS_10;
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth = 1;
+#endif
} else {
- rb->bit_buffer = data;
- rb->bit_buffer_end = data_end;
+ cm->bit_depth = VPX_BITS_8;
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth = 0;
+#endif
+ }
+ cm->color_space = vp9_rb_read_literal(rb, 3);
+ if (cm->color_space != VPX_CS_SRGB) {
+ vp9_rb_read_bit(rb); // [16,235] (including xvycc) vs [0,255] range
+ if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
+ cm->subsampling_x = vp9_rb_read_bit(rb);
+ cm->subsampling_y = vp9_rb_read_bit(rb);
+ if (cm->subsampling_x == 1 && cm->subsampling_y == 1)
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "4:2:0 color not supported in profile 1 or 3");
+ if (vp9_rb_read_bit(rb))
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Reserved bit set");
+ } else {
+ cm->subsampling_y = cm->subsampling_x = 1;
+ }
+ } else {
+ if (cm->profile == PROFILE_1 || cm->profile == PROFILE_3) {
+ // Note if colorspace is SRGB then 4:4:4 chroma sampling is assumed.
+ // 4:2:2 or 4:4:0 chroma sampling is not allowed.
+ cm->subsampling_y = cm->subsampling_x = 0;
+ if (vp9_rb_read_bit(rb))
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Reserved bit set");
+ } else {
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "4:4:4 color not supported in profile 0 or 2");
+ }
}
- return rb;
}
-void vp9_decode_frame(VP9Decoder *pbi,
- const uint8_t *data, const uint8_t *data_end,
- const uint8_t **p_data_end) {
+static size_t read_uncompressed_header(VP9Decoder *pbi,
+ struct vp9_read_bit_buffer *rb) {
VP9_COMMON *const cm = &pbi->common;
- MACROBLOCKD *const xd = &pbi->mb;
- struct vp9_read_bit_buffer rb = { NULL, NULL, 0, NULL, 0};
- int context_updated = 0;
- uint8_t clear_data[MAX_VP9_HEADER_SIZE];
- const size_t first_partition_size = read_uncompressed_header(pbi,
- init_read_bit_buffer(pbi, &rb, data, data_end, clear_data));
- const int tile_rows = 1 << cm->log2_tile_rows;
- const int tile_cols = 1 << cm->log2_tile_cols;
- YV12_BUFFER_CONFIG *const new_fb = get_frame_new_buffer(cm);
- xd->cur_buf = new_fb;
-
- if (!first_partition_size) {
- // showing a frame directly
- *p_data_end = data + (cm->profile <= PROFILE_2 ? 1 : 2);
- return;
- }
-
- data += vp9_rb_bytes_read(&rb);
- if (!read_is_valid(data, first_partition_size, data_end))
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Truncated packet or corrupt header length");
+ BufferPool *const pool = cm->buffer_pool;
+ RefCntBuffer *const frame_bufs = pool->frame_bufs;
+ int i, mask, ref_index = 0;
+ size_t sz;
- cm->use_prev_frame_mvs = !cm->error_resilient_mode &&
- cm->width == cm->last_width &&
- cm->height == cm->last_height &&
- !cm->intra_only &&
- cm->last_show_frame;
+ cm->last_frame_type = cm->frame_type;
- vp9_setup_block_planes(xd, cm->subsampling_x, cm->subsampling_y);
+ if (vp9_rb_read_literal(rb, 2) != VP9_FRAME_MARKER)
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame marker");
- *cm->fc = cm->frame_contexts[cm->frame_context_idx];
- if (!cm->fc->initialized)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Uninitialized entropy context.");
+ cm->profile = vp9_read_profile(rb);
- vp9_zero(cm->counts);
+ if (cm->profile >= MAX_PROFILES)
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Unsupported bitstream profile");
- xd->corrupted = 0;
- new_fb->corrupted = read_compressed_header(pbi, data, first_partition_size);
- if (new_fb->corrupted)
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Decode failed. Frame data header is corrupted.");
+ cm->show_existing_frame = vp9_rb_read_bit(rb);
+ if (cm->show_existing_frame) {
+ // Show an existing frame directly.
+ const int frame_to_show = cm->ref_frame_map[vp9_rb_read_literal(rb, 3)];
+ lock_buffer_pool(pool);
+ if (frame_to_show < 0 || frame_bufs[frame_to_show].ref_count < 1) {
+ unlock_buffer_pool(pool);
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Buffer %d does not contain a decoded frame",
+ frame_to_show);
+ }
- if (cm->lf.filter_level && !cm->skip_loop_filter) {
- vp9_loop_filter_frame_init(cm, cm->lf.filter_level);
- }
+ ref_cnt_fb(frame_bufs, &cm->new_fb_idx, frame_to_show);
+ unlock_buffer_pool(pool);
+ pbi->refresh_frame_flags = 0;
+ cm->lf.filter_level = 0;
+ cm->show_frame = 1;
- // If encoded in frame parallel mode, frame context is ready after decoding
- // the frame header.
- if (pbi->frame_parallel_decode && cm->frame_parallel_decoding_mode) {
- VP9Worker *const worker = pbi->frame_worker_owner;
- FrameWorkerData *const frame_worker_data = worker->data1;
- if (cm->refresh_frame_context) {
- context_updated = 1;
- cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
+ if (pbi->frame_parallel_decode) {
+ for (i = 0; i < REF_FRAMES; ++i)
+ cm->next_ref_frame_map[i] = cm->ref_frame_map[i];
}
- vp9_frameworker_lock_stats(worker);
- pbi->cur_buf->row = -1;
- pbi->cur_buf->col = -1;
- frame_worker_data->frame_context_ready = 1;
- // Signal the main thread that context is ready.
- vp9_frameworker_signal_stats(worker);
- vp9_frameworker_unlock_stats(worker);
+ return 0;
}
- if (pbi->max_threads > 1 && tile_rows == 1 && tile_cols > 1) {
- // Multi-threaded tile decoder
- *p_data_end = decode_tiles_mt(pbi, data + first_partition_size, data_end);
- if (!xd->corrupted) {
- if (!cm->skip_loop_filter) {
- // If multiple threads are used to decode tiles, then we use those
- // threads to do parallel loopfiltering.
- vp9_loop_filter_frame_mt(new_fb, cm, pbi->mb.plane,
- cm->lf.filter_level, 0, 0, pbi->tile_workers,
- pbi->num_tile_workers, &pbi->lf_row_sync);
- }
- } else {
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Decode failed. Frame data is corrupted.");
+ cm->frame_type = (FRAME_TYPE) vp9_rb_read_bit(rb);
+ cm->show_frame = vp9_rb_read_bit(rb);
+ cm->error_resilient_mode = vp9_rb_read_bit(rb);
- }
- } else {
- *p_data_end = decode_tiles(pbi, data + first_partition_size, data_end);
- }
+ if (cm->frame_type == KEY_FRAME) {
+ if (!vp9_read_sync_code(rb))
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame sync code");
- if (!xd->corrupted) {
- if (!cm->error_resilient_mode && !cm->frame_parallel_decoding_mode) {
- vp9_adapt_coef_probs(cm);
+ read_bitdepth_colorspace_sampling(cm, rb);
+ pbi->refresh_frame_flags = (1 << REF_FRAMES) - 1;
- if (!frame_is_intra_only(cm)) {
- vp9_adapt_mode_probs(cm);
- vp9_adapt_mv_probs(cm, cm->allow_high_precision_mv);
- }
- } else {
- debug_check_frame_counts(cm);
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ cm->frame_refs[i].idx = INVALID_IDX;
+ cm->frame_refs[i].buf = NULL;
+ }
+
+ setup_frame_size(cm, rb);
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
}
} else {
- vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
- "Decode failed. Frame data is corrupted.");
- }
+ cm->intra_only = cm->show_frame ? 0 : vp9_rb_read_bit(rb);
- // Non frame parallel update frame context here.
- if (cm->refresh_frame_context && !context_updated)
- cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
-}
+ cm->reset_frame_context = cm->error_resilient_mode ?
+ 0 : vp9_rb_read_literal(rb, 2);
-static void build_mc_border(const uint8_t *src, int src_stride,
- uint8_t *dst, int dst_stride,
- int x, int y, int b_w, int b_h, int w, int h) {
- // Get a pointer to the start of the real data for this row.
- const uint8_t *ref_row = src - x - y * src_stride;
+ if (cm->intra_only) {
+ if (!vp9_read_sync_code(rb))
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Invalid frame sync code");
+ if (cm->profile > PROFILE_0) {
+ read_bitdepth_colorspace_sampling(cm, rb);
+ } else {
+ // NOTE: The intra-only frame header does not include the specification
+ // of either the color format or color sub-sampling in profile 0. VP9
+ // specifies that the default color format should be YUV 4:2:0 in this
+ // case (normative).
+ cm->color_space = VPX_CS_BT_601;
+ cm->subsampling_y = cm->subsampling_x = 1;
+ cm->bit_depth = VPX_BITS_8;
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth = 0;
+#endif
+ }
- if (y >= h)
- ref_row += (h - 1) * src_stride;
- else if (y > 0)
- ref_row += y * src_stride;
+ pbi->refresh_frame_flags = vp9_rb_read_literal(rb, REF_FRAMES);
+ setup_frame_size(cm, rb);
+ if (pbi->need_resync) {
+ memset(&cm->ref_frame_map, -1, sizeof(cm->ref_frame_map));
+ pbi->need_resync = 0;
+ }
+ } else if (pbi->need_resync != 1) { /* Skip if need resync */
+ pbi->refresh_frame_flags = vp9_rb_read_literal(rb, REF_FRAMES);
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ const int ref = vp9_rb_read_literal(rb, REF_FRAMES_LOG2);
+ const int idx = cm->ref_frame_map[ref];
+ RefBuffer *const ref_frame = &cm->frame_refs[i];
+ ref_frame->idx = idx;
+ ref_frame->buf = &frame_bufs[idx].buf;
+ cm->ref_frame_sign_bias[LAST_FRAME + i] = vp9_rb_read_bit(rb);
+ }
- do {
- int right = 0, copy;
- int left = x < 0 ? -x : 0;
+ setup_frame_size_with_refs(cm, rb);
- if (left > b_w)
- left = b_w;
+ cm->allow_high_precision_mv = vp9_rb_read_bit(rb);
+ cm->interp_filter = read_interp_filter(rb);
+
+ for (i = 0; i < REFS_PER_FRAME; ++i) {
+ RefBuffer *const ref_buf = &cm->frame_refs[i];
+#if CONFIG_VP9_HIGHBITDEPTH
+ vp9_setup_scale_factors_for_frame(&ref_buf->sf,
+ ref_buf->buf->y_crop_width,
+ ref_buf->buf->y_crop_height,
+ cm->width, cm->height,
+ cm->use_highbitdepth);
+#else
+ vp9_setup_scale_factors_for_frame(&ref_buf->sf,
+ ref_buf->buf->y_crop_width,
+ ref_buf->buf->y_crop_height,
+ cm->width, cm->height);
+#endif
+ }
+ }
+ }
+#if CONFIG_VP9_HIGHBITDEPTH
+ get_frame_new_buffer(cm)->bit_depth = cm->bit_depth;
+#endif
+ get_frame_new_buffer(cm)->color_space = cm->color_space;
- if (x + b_w > w)
- right = x + b_w - w;
+ if (pbi->need_resync) {
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Keyframe / intra-only frame required to reset decoder"
+ " state");
+ }
- if (right > b_w)
- right = b_w;
+ if (!cm->error_resilient_mode) {
+ cm->refresh_frame_context = vp9_rb_read_bit(rb);
+ cm->frame_parallel_decoding_mode = vp9_rb_read_bit(rb);
+ } else {
+ cm->refresh_frame_context = 0;
+ cm->frame_parallel_decoding_mode = 1;
+ }
- copy = b_w - left - right;
+ // This flag will be overridden by the call to vp9_setup_past_independence
+ // below, forcing the use of context 0 for those frame types.
+ cm->frame_context_idx = vp9_rb_read_literal(rb, FRAME_CONTEXTS_LOG2);
- if (left)
- memset(dst, ref_row[0], left);
+ // Generate next_ref_frame_map.
+ lock_buffer_pool(pool);
+ for (mask = pbi->refresh_frame_flags; mask; mask >>= 1) {
+ if (mask & 1) {
+ cm->next_ref_frame_map[ref_index] = cm->new_fb_idx;
+ ++frame_bufs[cm->new_fb_idx].ref_count;
+ } else {
+ cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
+ }
+ // Current thread holds the reference frame.
+ if (cm->ref_frame_map[ref_index] >= 0)
+ ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
+ ++ref_index;
+ }
- if (copy)
- memcpy(dst + left, ref_row + x + left, copy);
+ for (; ref_index < REF_FRAMES; ++ref_index) {
+ cm->next_ref_frame_map[ref_index] = cm->ref_frame_map[ref_index];
+ // Current thread holds the reference frame.
+ if (cm->ref_frame_map[ref_index] >= 0)
+ ++frame_bufs[cm->ref_frame_map[ref_index]].ref_count;
+ }
+ unlock_buffer_pool(pool);
+ pbi->hold_ref_buf = 1;
- if (right)
- memset(dst + left + copy, ref_row[w - 1], right);
+ if (frame_is_intra_only(cm) || cm->error_resilient_mode)
+ vp9_setup_past_independence(cm);
- dst += dst_stride;
- ++y;
+ setup_loopfilter(&cm->lf, rb);
+ setup_quantization(cm, &pbi->mb, rb);
+ setup_segmentation(&cm->seg, rb);
+ setup_segmentation_dequant(cm);
- if (y > 0 && y < h)
- ref_row += src_stride;
- } while (--b_h);
-}
+ setup_tile_info(cm, rb);
+ sz = vp9_rb_read_literal(rb, 16);
-#if CONFIG_VP9_HIGHBITDEPTH
-static void high_build_mc_border(const uint8_t *src8, int src_stride,
- uint16_t *dst, int dst_stride,
- int x, int y, int b_w, int b_h,
- int w, int h) {
- // Get a pointer to the start of the real data for this row.
- const uint16_t *src = CONVERT_TO_SHORTPTR(src8);
- const uint16_t *ref_row = src - x - y * src_stride;
+ if (sz == 0)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Invalid header size");
- if (y >= h)
- ref_row += (h - 1) * src_stride;
- else if (y > 0)
- ref_row += y * src_stride;
+ return sz;
+}
- do {
- int right = 0, copy;
- int left = x < 0 ? -x : 0;
+static int read_compressed_header(VP9Decoder *pbi, const uint8_t *data,
+ size_t partition_size) {
+ VP9_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
+ FRAME_CONTEXT *const fc = cm->fc;
+ vp9_reader r;
+ int k;
- if (left > b_w)
- left = b_w;
+ if (vp9_reader_init(&r, data, partition_size, pbi->decrypt_cb,
+ pbi->decrypt_state))
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate bool decoder 0");
- if (x + b_w > w)
- right = x + b_w - w;
+ cm->tx_mode = xd->lossless ? ONLY_4X4 : read_tx_mode(&r);
+ if (cm->tx_mode == TX_MODE_SELECT)
+ read_tx_mode_probs(&fc->tx_probs, &r);
+ read_coef_probs(fc, cm->tx_mode, &r);
- if (right > b_w)
- right = b_w;
+ for (k = 0; k < SKIP_CONTEXTS; ++k)
+ vp9_diff_update_prob(&r, &fc->skip_probs[k]);
- copy = b_w - left - right;
+ if (!frame_is_intra_only(cm)) {
+ nmv_context *const nmvc = &fc->nmvc;
+ int i, j;
- if (left)
- vpx_memset16(dst, ref_row[0], left);
+ read_inter_mode_probs(fc, &r);
- if (copy)
- memcpy(dst + left, ref_row + x + left, copy * sizeof(uint16_t));
+ if (cm->interp_filter == SWITCHABLE)
+ read_switchable_interp_probs(fc, &r);
- if (right)
- vpx_memset16(dst + left + copy, ref_row[w - 1], right);
+ for (i = 0; i < INTRA_INTER_CONTEXTS; i++)
+ vp9_diff_update_prob(&r, &fc->intra_inter_prob[i]);
- dst += dst_stride;
- ++y;
+ cm->reference_mode = read_frame_reference_mode(cm, &r);
+ if (cm->reference_mode != SINGLE_REFERENCE)
+ setup_compound_reference_mode(cm);
+ read_frame_reference_mode_probs(cm, &r);
- if (y > 0 && y < h)
- ref_row += src_stride;
- } while (--b_h);
-}
-#endif // CONFIG_VP9_HIGHBITDEPTH
+ for (j = 0; j < BLOCK_SIZE_GROUPS; j++)
+ for (i = 0; i < INTRA_MODES - 1; ++i)
+ vp9_diff_update_prob(&r, &fc->y_mode_prob[j][i]);
-#if CONFIG_VP9_HIGHBITDEPTH
-static void extend_and_predict(const uint8_t *buf_ptr1, int pre_buf_stride,
- int x0, int y0, int b_w, int b_h,
- int frame_width, int frame_height,
- int border_offset,
- uint8_t *const dst, int dst_buf_stride,
- int subpel_x, int subpel_y,
- const InterpKernel *kernel,
- const struct scale_factors *sf,
- MACROBLOCKD *xd,
- int w, int h, int ref, int xs, int ys) {
- DECLARE_ALIGNED(16, uint16_t, mc_buf_high[80 * 2 * 80 * 2]);
- const uint8_t *buf_ptr;
+ for (j = 0; j < PARTITION_CONTEXTS; ++j)
+ for (i = 0; i < PARTITION_TYPES - 1; ++i)
+ vp9_diff_update_prob(&r, &fc->partition_prob[j][i]);
- if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
- high_build_mc_border(buf_ptr1, pre_buf_stride, mc_buf_high, b_w,
- x0, y0, b_w, b_h, frame_width, frame_height);
- buf_ptr = CONVERT_TO_BYTEPTR(mc_buf_high) + border_offset;
- } else {
- build_mc_border(buf_ptr1, pre_buf_stride, (uint8_t *)mc_buf_high, b_w,
- x0, y0, b_w, b_h, frame_width, frame_height);
- buf_ptr = ((uint8_t *)mc_buf_high) + border_offset;
+ read_mv_probs(nmvc, cm->allow_high_precision_mv, &r);
}
- if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
- high_inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys, xd->bd);
- } else {
- inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys);
- }
+ return vp9_reader_has_error(&r);
}
-#else
-static void extend_and_predict(const uint8_t *buf_ptr1, int pre_buf_stride,
- int x0, int y0, int b_w, int b_h,
- int frame_width, int frame_height,
- int border_offset,
- uint8_t *const dst, int dst_buf_stride,
- int subpel_x, int subpel_y,
- const InterpKernel *kernel,
- const struct scale_factors *sf,
- int w, int h, int ref, int xs, int ys) {
- DECLARE_ALIGNED(16, uint8_t, mc_buf[80 * 2 * 80 * 2]);
- const uint8_t *buf_ptr;
-
- build_mc_border(buf_ptr1, pre_buf_stride, mc_buf, b_w,
- x0, y0, b_w, b_h, frame_width, frame_height);
- buf_ptr = mc_buf + border_offset;
- inter_predictor(buf_ptr, b_w, dst, dst_buf_stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys);
+#ifdef NDEBUG
+#define debug_check_frame_counts(cm) (void)0
+#else // !NDEBUG
+// Counts should only be incremented when frame_parallel_decoding_mode and
+// error_resilient_mode are disabled.
+static void debug_check_frame_counts(const VP9_COMMON *const cm) {
+ FRAME_COUNTS zero_counts;
+ vp9_zero(zero_counts);
+ assert(cm->frame_parallel_decoding_mode || cm->error_resilient_mode);
+ assert(!memcmp(cm->counts.y_mode, zero_counts.y_mode,
+ sizeof(cm->counts.y_mode)));
+ assert(!memcmp(cm->counts.uv_mode, zero_counts.uv_mode,
+ sizeof(cm->counts.uv_mode)));
+ assert(!memcmp(cm->counts.partition, zero_counts.partition,
+ sizeof(cm->counts.partition)));
+ assert(!memcmp(cm->counts.coef, zero_counts.coef,
+ sizeof(cm->counts.coef)));
+ assert(!memcmp(cm->counts.eob_branch, zero_counts.eob_branch,
+ sizeof(cm->counts.eob_branch)));
+ assert(!memcmp(cm->counts.switchable_interp, zero_counts.switchable_interp,
+ sizeof(cm->counts.switchable_interp)));
+ assert(!memcmp(cm->counts.inter_mode, zero_counts.inter_mode,
+ sizeof(cm->counts.inter_mode)));
+ assert(!memcmp(cm->counts.intra_inter, zero_counts.intra_inter,
+ sizeof(cm->counts.intra_inter)));
+ assert(!memcmp(cm->counts.comp_inter, zero_counts.comp_inter,
+ sizeof(cm->counts.comp_inter)));
+ assert(!memcmp(cm->counts.single_ref, zero_counts.single_ref,
+ sizeof(cm->counts.single_ref)));
+ assert(!memcmp(cm->counts.comp_ref, zero_counts.comp_ref,
+ sizeof(cm->counts.comp_ref)));
+ assert(!memcmp(&cm->counts.tx, &zero_counts.tx, sizeof(cm->counts.tx)));
+ assert(!memcmp(cm->counts.skip, zero_counts.skip, sizeof(cm->counts.skip)));
+ assert(!memcmp(&cm->counts.mv, &zero_counts.mv, sizeof(cm->counts.mv)));
}
-#endif // CONFIG_VP9_HIGHBITDEPTH
-
-static void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
- int plane, int bw, int bh, int x,
- int y, int w, int h, int mi_x, int mi_y,
- const InterpKernel *kernel,
- const struct scale_factors *sf,
- struct buf_2d *pre_buf,
- struct buf_2d *dst_buf, const MV* mv,
- RefCntBuffer *ref_frame_buf,
- int is_scaled, int ref) {
- struct macroblockd_plane *const pd = &xd->plane[plane];
- uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
- MV32 scaled_mv;
- int xs, ys, x0, y0, x0_16, y0_16, frame_width, frame_height,
- buf_stride, subpel_x, subpel_y;
- uint8_t *ref_frame, *buf_ptr;
+#endif // NDEBUG
- // Get reference frame pointer, width and height.
- if (plane == 0) {
- frame_width = ref_frame_buf->buf.y_crop_width;
- frame_height = ref_frame_buf->buf.y_crop_height;
- ref_frame = ref_frame_buf->buf.y_buffer;
+static struct vp9_read_bit_buffer* init_read_bit_buffer(
+ VP9Decoder *pbi,
+ struct vp9_read_bit_buffer *rb,
+ const uint8_t *data,
+ const uint8_t *data_end,
+ uint8_t *clear_data /* buffer size MAX_VP9_HEADER_SIZE */) {
+ rb->bit_offset = 0;
+ rb->error_handler = error_handler;
+ rb->error_handler_data = &pbi->common;
+ if (pbi->decrypt_cb) {
+ const int n = (int)MIN(MAX_VP9_HEADER_SIZE, data_end - data);
+ pbi->decrypt_cb(pbi->decrypt_state, data, clear_data, n);
+ rb->bit_buffer = clear_data;
+ rb->bit_buffer_end = clear_data + n;
} else {
- frame_width = ref_frame_buf->buf.uv_crop_width;
- frame_height = ref_frame_buf->buf.uv_crop_height;
- ref_frame = plane == 1 ? ref_frame_buf->buf.u_buffer
- : ref_frame_buf->buf.v_buffer;
+ rb->bit_buffer = data;
+ rb->bit_buffer_end = data_end;
}
+ return rb;
+}
- if (is_scaled) {
- const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, mv, bw, bh,
- pd->subsampling_x,
- pd->subsampling_y);
- // Co-ordinate of containing block to pixel precision.
- int x_start = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x));
- int y_start = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y));
-
- // Co-ordinate of the block to 1/16th pixel precision.
- x0_16 = (x_start + x) << SUBPEL_BITS;
- y0_16 = (y_start + y) << SUBPEL_BITS;
-
- // Co-ordinate of current block in reference frame
- // to 1/16th pixel precision.
- x0_16 = sf->scale_value_x(x0_16, sf);
- y0_16 = sf->scale_value_y(y0_16, sf);
-
- // Map the top left corner of the block into the reference frame.
- x0 = sf->scale_value_x(x_start + x, sf);
- y0 = sf->scale_value_y(y_start + y, sf);
+void vp9_decode_frame(VP9Decoder *pbi,
+ const uint8_t *data, const uint8_t *data_end,
+ const uint8_t **p_data_end) {
+ VP9_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
+ struct vp9_read_bit_buffer rb = { NULL, NULL, 0, NULL, 0};
+ int context_updated = 0;
+ uint8_t clear_data[MAX_VP9_HEADER_SIZE];
+ const size_t first_partition_size = read_uncompressed_header(pbi,
+ init_read_bit_buffer(pbi, &rb, data, data_end, clear_data));
+ const int tile_rows = 1 << cm->log2_tile_rows;
+ const int tile_cols = 1 << cm->log2_tile_cols;
+ YV12_BUFFER_CONFIG *const new_fb = get_frame_new_buffer(cm);
+ xd->cur_buf = new_fb;
- // Scale the MV and incorporate the sub-pixel offset of the block
- // in the reference frame.
- scaled_mv = vp9_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
- xs = sf->x_step_q4;
- ys = sf->y_step_q4;
- } else {
- // Co-ordinate of containing block to pixel precision.
- x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
- y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
+ if (!first_partition_size) {
+ // showing a frame directly
+ *p_data_end = data + (cm->profile <= PROFILE_2 ? 1 : 2);
+ return;
+ }
- // Co-ordinate of the block to 1/16th pixel precision.
- x0_16 = x0 << SUBPEL_BITS;
- y0_16 = y0 << SUBPEL_BITS;
+ data += vp9_rb_bytes_read(&rb);
+ if (!read_is_valid(data, first_partition_size, data_end))
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Truncated packet or corrupt header length");
- scaled_mv.row = mv->row * (1 << (1 - pd->subsampling_y));
- scaled_mv.col = mv->col * (1 << (1 - pd->subsampling_x));
- xs = ys = 16;
- }
- subpel_x = scaled_mv.col & SUBPEL_MASK;
- subpel_y = scaled_mv.row & SUBPEL_MASK;
+ cm->use_prev_frame_mvs = !cm->error_resilient_mode &&
+ cm->width == cm->last_width &&
+ cm->height == cm->last_height &&
+ !cm->intra_only &&
+ cm->last_show_frame;
- // Calculate the top left corner of the best matching block in the
- // reference frame.
- x0 += scaled_mv.col >> SUBPEL_BITS;
- y0 += scaled_mv.row >> SUBPEL_BITS;
- x0_16 += scaled_mv.col;
- y0_16 += scaled_mv.row;
+ vp9_setup_block_planes(xd, cm->subsampling_x, cm->subsampling_y);
- // Get reference block pointer.
- buf_ptr = ref_frame + y0 * pre_buf->stride + x0;
- buf_stride = pre_buf->stride;
+ *cm->fc = cm->frame_contexts[cm->frame_context_idx];
+ if (!cm->fc->initialized)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Uninitialized entropy context.");
- // Do border extension if there is motion or the
- // width/height is not a multiple of 8 pixels.
- if (is_scaled || scaled_mv.col || scaled_mv.row ||
- (frame_width & 0x7) || (frame_height & 0x7)) {
- int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;
+ vp9_zero(cm->counts);
- // Get reference block bottom right horizontal coordinate.
- int x1 = (x0_16 + (w - 1) * xs) >> SUBPEL_BITS;
- int x_pad = 0, y_pad = 0;
+ xd->corrupted = 0;
+ new_fb->corrupted = read_compressed_header(pbi, data, first_partition_size);
+ if (new_fb->corrupted)
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data header is corrupted.");
- if (subpel_x || (sf->x_step_q4 != SUBPEL_SHIFTS)) {
- x0 -= VP9_INTERP_EXTEND - 1;
- x1 += VP9_INTERP_EXTEND;
- x_pad = 1;
- }
+ if (cm->lf.filter_level && !cm->skip_loop_filter) {
+ vp9_loop_filter_frame_init(cm, cm->lf.filter_level);
+ }
- if (subpel_y || (sf->y_step_q4 != SUBPEL_SHIFTS)) {
- y0 -= VP9_INTERP_EXTEND - 1;
- y1 += VP9_INTERP_EXTEND;
- y_pad = 1;
+ // If encoded in frame parallel mode, frame context is ready after decoding
+ // the frame header.
+ if (pbi->frame_parallel_decode && cm->frame_parallel_decoding_mode) {
+ VP9Worker *const worker = pbi->frame_worker_owner;
+ FrameWorkerData *const frame_worker_data = worker->data1;
+ if (cm->refresh_frame_context) {
+ context_updated = 1;
+ cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
}
+ vp9_frameworker_lock_stats(worker);
+ pbi->cur_buf->row = -1;
+ pbi->cur_buf->col = -1;
+ frame_worker_data->frame_context_ready = 1;
+ // Signal the main thread that context is ready.
+ vp9_frameworker_signal_stats(worker);
+ vp9_frameworker_unlock_stats(worker);
+ }
- // Wait until reference block is ready. Pad 7 more pixels as last 7
- // pixels of each superblock row can be changed by next superblock row.
- if (pbi->frame_parallel_decode)
- vp9_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
- MAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
-
- // Skip border extension if block is inside the frame.
- if (x0 < 0 || x0 > frame_width - 1 || x1 < 0 || x1 > frame_width - 1 ||
- y0 < 0 || y0 > frame_height - 1 || y1 < 0 || y1 > frame_height - 1) {
- // Extend the border.
- const uint8_t *const buf_ptr1 = ref_frame + y0 * buf_stride + x0;
- const int b_w = x1 - x0 + 1;
- const int b_h = y1 - y0 + 1;
- const int border_offset = y_pad * 3 * b_w + x_pad * 3;
+ if (pbi->max_threads > 1 && tile_rows == 1 && tile_cols > 1) {
+ // Multi-threaded tile decoder
+ *p_data_end = decode_tiles_mt(pbi, data + first_partition_size, data_end);
+ if (!xd->corrupted) {
+ if (!cm->skip_loop_filter) {
+ // If multiple threads are used to decode tiles, then we use those
+ // threads to do parallel loopfiltering.
+ vp9_loop_filter_frame_mt(new_fb, cm, pbi->mb.plane,
+ cm->lf.filter_level, 0, 0, pbi->tile_workers,
+ pbi->num_tile_workers, &pbi->lf_row_sync);
+ }
+ } else {
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data is corrupted.");
- extend_and_predict(buf_ptr1, buf_stride, x0, y0, b_w, b_h,
- frame_width, frame_height, border_offset,
- dst, dst_buf->stride,
- subpel_x, subpel_y,
- kernel, sf,
-#if CONFIG_VP9_HIGHBITDEPTH
- xd,
-#endif
- w, h, ref, xs, ys);
- return;
}
} else {
- // Wait until reference block is ready. Pad 7 more pixels as last 7
- // pixels of each superblock row can be changed by next superblock row.
- if (pbi->frame_parallel_decode) {
- const int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;
- vp9_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
- MAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
- }
- }
-#if CONFIG_VP9_HIGHBITDEPTH
- if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
- high_inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys, xd->bd);
- } else {
- inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys);
+ *p_data_end = decode_tiles(pbi, data + first_partition_size, data_end);
}
-#else
- inter_predictor(buf_ptr, buf_stride, dst, dst_buf->stride, subpel_x,
- subpel_y, sf, w, h, ref, kernel, xs, ys);
-#endif // CONFIG_VP9_HIGHBITDEPTH
-}
-static void dec_build_inter_predictors_sb(VP9Decoder *const pbi,
- MACROBLOCKD *xd,
- int mi_row, int mi_col,
- BLOCK_SIZE bsize) {
- int plane;
- const int mi_x = mi_col * MI_SIZE;
- const int mi_y = mi_row * MI_SIZE;
- const MODE_INFO *mi = xd->mi[0];
- const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
- const BLOCK_SIZE sb_type = mi->mbmi.sb_type;
- const int is_compound = has_second_ref(&mi->mbmi);
-
- for (plane = 0; plane < MAX_MB_PLANE; ++plane) {
- const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize,
- &xd->plane[plane]);
- struct macroblockd_plane *const pd = &xd->plane[plane];
- struct buf_2d *const dst_buf = &pd->dst;
- const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
- const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
-
- const int bw = 4 * num_4x4_w;
- const int bh = 4 * num_4x4_h;
- int ref;
-
- for (ref = 0; ref < 1 + is_compound; ++ref) {
- const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
- struct buf_2d *const pre_buf = &pd->pre[ref];
- const int idx = xd->block_refs[ref]->idx;
- BufferPool *const pool = pbi->common.buffer_pool;
- RefCntBuffer *const ref_frame_buf = &pool->frame_bufs[idx];
- const int is_scaled = vp9_is_scaled(sf);
+ if (!xd->corrupted) {
+ if (!cm->error_resilient_mode && !cm->frame_parallel_decoding_mode) {
+ vp9_adapt_coef_probs(cm);
- if (sb_type < BLOCK_8X8) {
- int i = 0, x, y;
- assert(bsize == BLOCK_8X8);
- for (y = 0; y < num_4x4_h; ++y) {
- for (x = 0; x < num_4x4_w; ++x) {
- const MV mv = average_split_mvs(pd, mi, ref, i++);
- dec_build_inter_predictors(pbi, xd, plane, bw, bh,
- 4 * x, 4 * y, 4, 4, mi_x, mi_y, kernel,
- sf, pre_buf, dst_buf, &mv,
- ref_frame_buf, is_scaled, ref);
- }
- }
- } else {
- const MV mv = mi->mbmi.mv[ref].as_mv;
- dec_build_inter_predictors(pbi, xd, plane, bw, bh,
- 0, 0, bw, bh, mi_x, mi_y, kernel,
- sf, pre_buf, dst_buf, &mv, ref_frame_buf,
- is_scaled, ref);
+ if (!frame_is_intra_only(cm)) {
+ vp9_adapt_mode_probs(cm);
+ vp9_adapt_mv_probs(cm, cm->allow_high_precision_mv);
}
+ } else {
+ debug_check_frame_counts(cm);
}
+ } else {
+ vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
+ "Decode failed. Frame data is corrupted.");
}
+
+ // Non frame parallel update frame context here.
+ if (cm->refresh_frame_context && !context_updated)
+ cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
}
projects / libvpx / commitdiff