Moving segmentation and tile info to uncompressed header.
Change-Id: I0ca77329d882a2026f6c1941b8e447d86bc87bda
This commit is contained in:
Dmitry Kovalev
Родитель
26e24b1dd7
Коммит
a23757633d
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@ -117,13 +117,8 @@ static int decode_term_subexp(vp9_reader *r, int k, int num_syms) {
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return word;
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}
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static int decode_unsigned_max(vp9_reader *r, int max) {
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int data = 0, bit = 0, lmax = max;
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while (lmax) {
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data |= vp9_read_bit(r) << bit++;
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lmax >>= 1;
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}
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static int decode_unsigned_max(struct vp9_read_bit_buffer *rb, int max) {
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const int data = vp9_rb_read_literal(rb, get_unsigned_bits(max));
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return data > max ? max : data;
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}
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@ -566,65 +561,68 @@ static void read_coef_probs_common(FRAME_CONTEXT *fc, TX_SIZE tx_size,
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}
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static void read_coef_probs(VP9D_COMP *pbi, vp9_reader *r) {
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const TXFM_MODE mode = pbi->common.txfm_mode;
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const TXFM_MODE txfm_mode = pbi->common.txfm_mode;
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FRAME_CONTEXT *const fc = &pbi->common.fc;
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read_coef_probs_common(fc, TX_4X4, r);
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if (mode > ONLY_4X4)
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if (txfm_mode > ONLY_4X4)
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read_coef_probs_common(fc, TX_8X8, r);
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if (mode > ALLOW_8X8)
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if (txfm_mode > ALLOW_8X8)
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read_coef_probs_common(fc, TX_16X16, r);
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if (mode > ALLOW_16X16)
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if (txfm_mode > ALLOW_16X16)
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read_coef_probs_common(fc, TX_32X32, r);
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}
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static void setup_segmentation(VP9_COMMON *pc, MACROBLOCKD *xd, vp9_reader *r) {
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static void setup_segmentation(VP9D_COMP *pbi, struct vp9_read_bit_buffer *rb) {
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int i, j;
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VP9_COMMON *const cm = &pbi->common;
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MACROBLOCKD *const xd = &pbi->mb;
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xd->update_mb_segmentation_map = 0;
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xd->update_mb_segmentation_data = 0;
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xd->segmentation_enabled = vp9_read_bit(r);
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xd->segmentation_enabled = vp9_rb_read_bit(rb);
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if (!xd->segmentation_enabled)
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return;
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// Segmentation map update
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xd->update_mb_segmentation_map = vp9_read_bit(r);
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xd->update_mb_segmentation_map = vp9_rb_read_bit(rb);
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if (xd->update_mb_segmentation_map) {
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for (i = 0; i < MB_SEG_TREE_PROBS; i++)
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xd->mb_segment_tree_probs[i] = vp9_read_bit(r) ? vp9_read_prob(r)
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: MAX_PROB;
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xd->mb_segment_tree_probs[i] = vp9_rb_read_bit(rb) ?
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vp9_rb_read_literal(rb, 8) : MAX_PROB;
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pc->temporal_update = vp9_read_bit(r);
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if (pc->temporal_update) {
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cm->temporal_update = vp9_rb_read_bit(rb);
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if (cm->temporal_update) {
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for (i = 0; i < PREDICTION_PROBS; i++)
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pc->segment_pred_probs[i] = vp9_read_bit(r) ? vp9_read_prob(r)
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: MAX_PROB;
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cm->segment_pred_probs[i] = vp9_rb_read_bit(rb) ?
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vp9_rb_read_literal(rb, 8) : MAX_PROB;
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} else {
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for (i = 0; i < PREDICTION_PROBS; i++)
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pc->segment_pred_probs[i] = MAX_PROB;
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cm->segment_pred_probs[i] = MAX_PROB;
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}
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}
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// Segmentation data update
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xd->update_mb_segmentation_data = vp9_read_bit(r);
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xd->update_mb_segmentation_data = vp9_rb_read_bit(rb);
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if (xd->update_mb_segmentation_data) {
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xd->mb_segment_abs_delta = vp9_read_bit(r);
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xd->mb_segment_abs_delta = vp9_rb_read_bit(rb);
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vp9_clearall_segfeatures(xd);
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for (i = 0; i < MAX_MB_SEGMENTS; i++) {
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for (j = 0; j < SEG_LVL_MAX; j++) {
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int data = 0;
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const int feature_enabled = vp9_read_bit(r);
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const int feature_enabled = vp9_rb_read_bit(rb);
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if (feature_enabled) {
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vp9_enable_segfeature(xd, i, j);
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data = decode_unsigned_max(r, vp9_seg_feature_data_max(j));
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data = decode_unsigned_max(rb, vp9_seg_feature_data_max(j));
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if (vp9_is_segfeature_signed(j))
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data = vp9_read_and_apply_sign(r, data);
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data = vp9_rb_read_bit(rb) ? -data : data;
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}
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vp9_set_segdata(xd, i, j, data);
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}
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@ -676,14 +674,30 @@ static int read_delta_q(struct vp9_read_bit_buffer *rb, int *delta_q) {
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}
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static void setup_quantization(VP9D_COMP *pbi, struct vp9_read_bit_buffer *rb) {
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MACROBLOCKD *const xd = &pbi->mb;
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VP9_COMMON *const cm = &pbi->common;
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int update = 0;
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cm->base_qindex = vp9_rb_read_literal(rb, QINDEX_BITS);
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update |= read_delta_q(rb, &cm->y_dc_delta_q);
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update |= read_delta_q(rb, &cm->uv_dc_delta_q);
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update |= read_delta_q(rb, &cm->uv_ac_delta_q);
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if (update)
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vp9_init_dequantizer(cm);
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xd->lossless = cm->base_qindex == 0 &&
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cm->y_dc_delta_q == 0 &&
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cm->uv_dc_delta_q == 0 &&
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cm->uv_ac_delta_q == 0;
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if (xd->lossless) {
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xd->itxm_add = vp9_idct_add_lossless_c;
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xd->itxm_add_y_block = vp9_idct_add_y_block_lossless_c;
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xd->itxm_add_uv_block = vp9_idct_add_uv_block_lossless_c;
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} else {
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xd->itxm_add = vp9_idct_add;
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xd->itxm_add_y_block = vp9_idct_add_y_block;
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xd->itxm_add_uv_block = vp9_idct_add_uv_block;
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}
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}
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static INTERPOLATIONFILTERTYPE read_interp_filter_type(
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@ -787,27 +801,33 @@ static void decode_tile(VP9D_COMP *pbi, vp9_reader *r) {
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}
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}
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static void decode_tiles(VP9D_COMP *pbi,
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const uint8_t *data, int first_partition_size,
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vp9_reader *header_bc, vp9_reader *residual_bc) {
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VP9_COMMON *const pc = &pbi->common;
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static void setup_tile_info(VP9_COMMON *cm, struct vp9_read_bit_buffer *rb) {
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int delta_log2_tiles;
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const uint8_t *data_ptr = data + first_partition_size;
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int tile_row, tile_col, delta_log2_tiles;
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vp9_get_tile_n_bits(pc, &pc->log2_tile_columns, &delta_log2_tiles);
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vp9_get_tile_n_bits(cm, &cm->log2_tile_columns, &delta_log2_tiles);
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while (delta_log2_tiles--) {
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if (vp9_read_bit(header_bc)) {
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pc->log2_tile_columns++;
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if (vp9_rb_read_bit(rb)) {
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cm->log2_tile_columns++;
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} else {
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break;
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}
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}
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pc->log2_tile_rows = vp9_read_bit(header_bc);
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if (pc->log2_tile_rows)
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pc->log2_tile_rows += vp9_read_bit(header_bc);
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pc->tile_columns = 1 << pc->log2_tile_columns;
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pc->tile_rows = 1 << pc->log2_tile_rows;
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cm->log2_tile_rows = vp9_rb_read_bit(rb);
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if (cm->log2_tile_rows)
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cm->log2_tile_rows += vp9_rb_read_bit(rb);
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cm->tile_columns = 1 << cm->log2_tile_columns;
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cm->tile_rows = 1 << cm->log2_tile_rows;
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}
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static void decode_tiles(VP9D_COMP *pbi,
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const uint8_t *data, size_t first_partition_size,
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vp9_reader *residual_bc) {
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VP9_COMMON *const pc = &pbi->common;
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const uint8_t *data_ptr = data + first_partition_size;
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int tile_row, tile_col;
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// Note: this memset assumes above_context[0], [1] and [2]
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// are allocated as part of the same buffer.
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@ -955,6 +975,9 @@ size_t read_uncompressed_header(VP9D_COMP *pbi,
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setup_loopfilter(pbi, rb);
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setup_quantization(pbi, rb);
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setup_segmentation(pbi, rb);
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setup_tile_info(cm, rb);
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return vp9_rb_read_literal(rb, 16);
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}
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@ -999,27 +1022,11 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
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mb_init_dequantizer(pc, &pbi->mb); // MB level dequantizer setup
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xd->lossless = pc->base_qindex == 0 &&
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pc->y_dc_delta_q == 0 &&
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pc->uv_dc_delta_q == 0 &&
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pc->uv_ac_delta_q == 0;
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if (xd->lossless) {
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xd->itxm_add = vp9_idct_add_lossless_c;
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xd->itxm_add_y_block = vp9_idct_add_y_block_lossless_c;
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xd->itxm_add_uv_block = vp9_idct_add_uv_block_lossless_c;
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} else {
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xd->itxm_add = vp9_idct_add;
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xd->itxm_add_y_block = vp9_idct_add_y_block;
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xd->itxm_add_uv_block = vp9_idct_add_uv_block;
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}
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if (!keyframe)
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vp9_setup_interp_filters(xd, pc->mcomp_filter_type, pc);
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pc->fc = pc->frame_contexts[pc->frame_context_idx];
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setup_segmentation(pc, xd, &header_bc);
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setup_txfm_mode(pc, xd->lossless, &header_bc);
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update_frame_context(&pc->fc);
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@ -1046,7 +1053,7 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
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vp9_decode_mode_mvs_init(pbi, &header_bc);
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decode_tiles(pbi, data, first_partition_size, &header_bc, &residual_bc);
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decode_tiles(pbi, data, first_partition_size, &residual_bc);
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pc->last_width = pc->width;
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pc->last_height = pc->height;
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@ -60,14 +60,7 @@ static INLINE void write_le32(uint8_t *p, int value) {
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p[3] = value >> 24;
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}
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void vp9_encode_unsigned_max(vp9_writer *br, int data, int max) {
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assert(data <= max);
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while (max) {
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vp9_write_bit(br, data & 1);
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data >>= 1;
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max >>= 1;
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}
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}
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int recenter_nonneg(int v, int m) {
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if (v > (m << 1))
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@ -88,6 +81,11 @@ static int get_unsigned_bits(unsigned num_values) {
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return cat;
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}
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void vp9_encode_unsigned_max(struct vp9_write_bit_buffer *wb,
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int data, int max) {
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vp9_wb_write_literal(wb, data, get_unsigned_bits(max));
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}
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void encode_uniform(vp9_writer *w, int v, int n) {
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int l = get_unsigned_bits(n);
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int m;
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@ -1259,73 +1257,63 @@ static void encode_quantization(VP9_COMMON *cm,
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}
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static void encode_segmentation(VP9_COMP *cpi, vp9_writer *w) {
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static void encode_segmentation(VP9_COMP *cpi,
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struct vp9_write_bit_buffer *wb) {
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int i, j;
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VP9_COMMON *const pc = &cpi->common;
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VP9_COMMON *const cm = &cpi->common;
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MACROBLOCKD *const xd = &cpi->mb.e_mbd;
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vp9_write_bit(w, xd->segmentation_enabled);
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vp9_wb_write_bit(wb, xd->segmentation_enabled);
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if (!xd->segmentation_enabled)
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return;
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// Segmentation map
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vp9_write_bit(w, xd->update_mb_segmentation_map);
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vp9_wb_write_bit(wb, xd->update_mb_segmentation_map);
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if (xd->update_mb_segmentation_map) {
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// Select the coding strategy (temporal or spatial)
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vp9_choose_segmap_coding_method(cpi);
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// Write out probabilities used to decode unpredicted macro-block segments
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for (i = 0; i < MB_SEG_TREE_PROBS; i++) {
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const int prob = xd->mb_segment_tree_probs[i];
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if (prob != MAX_PROB) {
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vp9_write_bit(w, 1);
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vp9_write_prob(w, prob);
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} else {
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vp9_write_bit(w, 0);
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}
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const int update = prob != MAX_PROB;
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vp9_wb_write_bit(wb, update);
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if (update)
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vp9_wb_write_literal(wb, prob, 8);
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}
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// Write out the chosen coding method.
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vp9_write_bit(w, pc->temporal_update);
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if (pc->temporal_update) {
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vp9_wb_write_bit(wb, cm->temporal_update);
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if (cm->temporal_update) {
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for (i = 0; i < PREDICTION_PROBS; i++) {
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const int prob = pc->segment_pred_probs[i];
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if (prob != MAX_PROB) {
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vp9_write_bit(w, 1);
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vp9_write_prob(w, prob);
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} else {
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vp9_write_bit(w, 0);
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}
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const int prob = cm->segment_pred_probs[i];
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const int update = prob != MAX_PROB;
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vp9_wb_write_bit(wb, update);
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if (update)
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vp9_wb_write_literal(wb, prob, 8);
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}
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}
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}
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// Segmentation data
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vp9_write_bit(w, xd->update_mb_segmentation_data);
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vp9_wb_write_bit(wb, xd->update_mb_segmentation_data);
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// segment_reference_frames(cpi);
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if (xd->update_mb_segmentation_data) {
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vp9_write_bit(w, xd->mb_segment_abs_delta);
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vp9_wb_write_bit(wb, xd->mb_segment_abs_delta);
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for (i = 0; i < MAX_MB_SEGMENTS; i++) {
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for (j = 0; j < SEG_LVL_MAX; j++) {
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const int data = vp9_get_segdata(xd, i, j);
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const int data_max = vp9_seg_feature_data_max(j);
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if (vp9_segfeature_active(xd, i, j)) {
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vp9_write_bit(w, 1);
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const int active = vp9_segfeature_active(xd, i, j);
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vp9_wb_write_bit(wb, active);
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if (active) {
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const int data = vp9_get_segdata(xd, i, j);
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const int data_max = vp9_seg_feature_data_max(j);
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if (vp9_is_segfeature_signed(j)) {
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if (data < 0) {
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vp9_encode_unsigned_max(w, -data, data_max);
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vp9_write_bit(w, 1);
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} else {
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vp9_encode_unsigned_max(w, data, data_max);
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vp9_write_bit(w, 0);
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}
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vp9_encode_unsigned_max(wb, abs(data), data_max);
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vp9_wb_write_bit(wb, data < 0);
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} else {
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vp9_encode_unsigned_max(w, data, data_max);
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vp9_encode_unsigned_max(wb, data, data_max);
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}
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} else {
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vp9_write_bit(w, 0);
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}
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}
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}
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@ -1407,6 +1395,24 @@ static void fix_mcomp_filter_type(VP9_COMP *cpi) {
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}
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}
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static void write_tile_info(VP9_COMMON *cm, struct vp9_write_bit_buffer *wb) {
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int min_log2_tiles, delta_log2_tiles, n_tile_bits, n;
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vp9_get_tile_n_bits(cm, &min_log2_tiles, &delta_log2_tiles);
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n_tile_bits = cm->log2_tile_columns - min_log2_tiles;
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for (n = 0; n < delta_log2_tiles; n++) {
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if (n_tile_bits--) {
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vp9_wb_write_bit(wb, 1);
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} else {
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vp9_wb_write_bit(wb, 0);
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break;
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}
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}
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vp9_wb_write_bit(wb, cm->log2_tile_rows != 0);
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if (cm->log2_tile_rows != 0)
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vp9_wb_write_bit(wb, cm->log2_tile_rows != 1);
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}
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void write_uncompressed_header(VP9_COMP *cpi,
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struct vp9_write_bit_buffer *wb) {
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VP9_COMMON *const cm = &cpi->common;
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@ -1515,6 +1521,9 @@ void write_uncompressed_header(VP9_COMP *cpi,
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encode_loopfilter(cm, xd, wb);
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encode_quantization(cm, wb);
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encode_segmentation(cpi, wb);
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|
||||
write_tile_info(cm, wb);
|
||||
}
|
||||
|
||||
void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
|
||||
|
|
@ -1545,8 +1554,6 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
|
|||
active_section = 7;
|
||||
#endif
|
||||
|
||||
encode_segmentation(cpi, &header_bc);
|
||||
|
||||
if (xd->lossless)
|
||||
pc->txfm_mode = ONLY_4X4;
|
||||
else
|
||||
|
|
@ -1621,24 +1628,6 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
|
|||
vp9_write_nmv_probs(cpi, xd->allow_high_precision_mv, &header_bc);
|
||||
}
|
||||
|
||||
/* tiling */
|
||||
{
|
||||
int min_log2_tiles, delta_log2_tiles, n_tile_bits, n;
|
||||
|
||||
vp9_get_tile_n_bits(pc, &min_log2_tiles, &delta_log2_tiles);
|
||||
n_tile_bits = pc->log2_tile_columns - min_log2_tiles;
|
||||
for (n = 0; n < delta_log2_tiles; n++) {
|
||||
if (n_tile_bits--) {
|
||||
vp9_write_bit(&header_bc, 1);
|
||||
} else {
|
||||
vp9_write_bit(&header_bc, 0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
vp9_write_bit(&header_bc, pc->log2_tile_rows != 0);
|
||||
if (pc->log2_tile_rows != 0)
|
||||
vp9_write_bit(&header_bc, pc->log2_tile_rows != 1);
|
||||
}
|
||||
|
||||
vp9_stop_encode(&header_bc);
|
||||
|
||||
|
|
|
|||
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Ссылка в новой задаче