Merge "Removing get_segment_id function and using existing vp9_get_pred_mb_segid." into experimental
This commit is contained in:
Dmitry Kovalev
Gerrit Code Review
Коммит
c7a38f77ef
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@ -9,6 +9,8 @@
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <limits.h>
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#include "vp9/common/vp9_common.h"
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#include "vp9/common/vp9_pred_common.h"
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#include "vp9/common/vp9_seg_common.h"
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@ -225,30 +227,26 @@ void vp9_set_pred_flag(MACROBLOCKD *const xd,
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// peredict various bitstream signals.
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// Macroblock segment id prediction function
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unsigned char vp9_get_pred_mb_segid(const VP9_COMMON *const cm,
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const MACROBLOCKD *const xd, int MbIndex) {
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// Currently the prediction for the macroblock segment ID is
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// the value stored for this macroblock in the previous frame.
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if (!xd->mode_info_context->mbmi.sb_type) {
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return cm->last_frame_seg_map[MbIndex];
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} else {
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BLOCK_SIZE_TYPE bsize = xd->mode_info_context->mbmi.sb_type;
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const int bh = 1 << mb_height_log2(bsize);
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const int bw = 1 << mb_width_log2(bsize);
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const int mb_col = MbIndex % cm->mb_cols;
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const int mb_row = MbIndex / cm->mb_cols;
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const int x_mbs = MIN(bw, cm->mb_cols - mb_col);
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const int y_mbs = MIN(bh, cm->mb_rows - mb_row);
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int vp9_get_pred_mb_segid(VP9_COMMON *cm, BLOCK_SIZE_TYPE sb_type,
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int mb_row, int mb_col) {
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const int mb_index = mb_row * cm->mb_cols + mb_col;
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if (sb_type) {
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const int bw = 1 << mb_width_log2(sb_type);
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const int bh = 1 << mb_height_log2(sb_type);
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const int ymbs = MIN(cm->mb_rows - mb_row, bh);
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const int xmbs = MIN(cm->mb_cols - mb_col, bw);
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int segment_id = INT_MAX;
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int x, y;
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unsigned seg_id = -1;
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for (y = mb_row; y < mb_row + y_mbs; y++) {
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for (x = mb_col; x < mb_col + x_mbs; x++) {
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seg_id = MIN(seg_id, cm->last_frame_seg_map[cm->mb_cols * y + x]);
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for (y = 0; y < ymbs; y++) {
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for (x = 0; x < xmbs; x++) {
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const int index = mb_index + (y * cm->mb_cols + x);
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segment_id = MIN(segment_id, cm->last_frame_seg_map[index]);
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}
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}
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return seg_id;
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return segment_id;
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} else {
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return cm->last_frame_seg_map[mb_index];
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}
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}
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@ -43,9 +43,8 @@ void vp9_set_pred_flag(MACROBLOCKD *const xd,
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unsigned char pred_flag);
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unsigned char vp9_get_pred_mb_segid(const VP9_COMMON *const cm,
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const MACROBLOCKD *const xd,
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int MbIndex);
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int vp9_get_pred_mb_segid(VP9_COMMON *cm, BLOCK_SIZE_TYPE sb_type,
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int mb_row, int mb_col);
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MV_REFERENCE_FRAME vp9_get_pred_ref(const VP9_COMMON *const cm,
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const MACROBLOCKD *const xd);
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@ -84,8 +84,8 @@ static int read_mb_segid(vp9_reader *r, MACROBLOCKD *xd) {
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static int read_mb_segid_except(vp9_reader *r,
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VP9_COMMON *cm, MACROBLOCKD *xd,
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int mb_row, int mb_col) {
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const int mb_index = mb_row * cm->mb_cols + mb_col;
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const int pred_seg_id = vp9_get_pred_mb_segid(cm, xd, mb_index);
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const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type;
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const int pred_seg_id = vp9_get_pred_mb_segid(cm, sb_type, mb_row, mb_col);
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const vp9_prob *const p = xd->mb_segment_tree_probs;
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const vp9_prob prob = xd->mb_segment_mispred_tree_probs[pred_seg_id];
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@ -116,30 +116,6 @@ static void set_segment_id(VP9_COMMON *cm, MB_MODE_INFO *mbmi,
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}
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}
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static int get_segment_id(VP9_COMMON *cm, MB_MODE_INFO *mbmi,
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int mb_row, int mb_col) {
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const int mb_index = mb_row * cm->mb_cols + mb_col;
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const BLOCK_SIZE_TYPE sb_type = mbmi->sb_type;
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if (sb_type) {
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const int bw = 1 << mb_width_log2(sb_type);
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const int bh = 1 << mb_height_log2(sb_type);
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const int ymbs = MIN(cm->mb_rows - mb_row, bh);
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const int xmbs = MIN(cm->mb_cols - mb_col, bw);
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int segment_id = INT_MAX;
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int x, y;
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for (y = 0; y < ymbs; y++) {
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for (x = 0; x < xmbs; x++) {
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const int index = mb_index + (y * cm->mb_cols + x);
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segment_id = MIN(segment_id, cm->last_frame_seg_map[index]);
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}
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}
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return segment_id;
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} else {
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return cm->last_frame_seg_map[mb_index];
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}
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}
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extern const int vp9_i8x8_block[4];
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static void kfread_modes(VP9D_COMP *pbi, MODE_INFO *m,
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int mb_row, int mb_col,
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@ -149,19 +125,19 @@ static void kfread_modes(VP9D_COMP *pbi, MODE_INFO *m,
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const int mis = cm->mode_info_stride;
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m->mbmi.ref_frame = INTRA_FRAME;
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// Read the Macroblock segmentation map if it is being updated explicitly
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// this frame (reset to 0 by default).
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// Read segmentation map if it is being updated explicitly this frame
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m->mbmi.segment_id = 0;
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if (xd->segmentation_enabled && xd->update_mb_segmentation_map) {
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m->mbmi.segment_id = read_mb_segid(r, xd);
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set_segment_id(cm, &m->mbmi, mb_row, mb_col, m->mbmi.segment_id);
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}
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m->mbmi.mb_skip_coeff = vp9_segfeature_active(&pbi->mb, m->mbmi.segment_id,
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m->mbmi.mb_skip_coeff = vp9_segfeature_active(xd, m->mbmi.segment_id,
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SEG_LVL_SKIP);
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if (!m->mbmi.mb_skip_coeff)
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m->mbmi.mb_skip_coeff = vp9_read(r, vp9_get_pred_prob(cm, xd, PRED_MBSKIP));
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// luma mode
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m->mbmi.mode = m->mbmi.sb_type ?
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read_kf_sb_ymode(r, cm->sb_kf_ymode_prob[cm->kf_ymode_probs_index]):
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read_kf_mb_ymode(r, cm->kf_ymode_prob[cm->kf_ymode_probs_index]);
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@ -169,19 +145,19 @@ static void kfread_modes(VP9D_COMP *pbi, MODE_INFO *m,
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m->mbmi.ref_frame = INTRA_FRAME;
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if (m->mbmi.mode == I4X4_PRED) {
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int i = 0;
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do {
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int i;
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for (i = 0; i < 16; ++i) {
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const B_PREDICTION_MODE a = above_block_mode(m, i, mis);
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const B_PREDICTION_MODE l = xd->left_available || (i & 3) ?
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left_block_mode(m, i) : B_DC_PRED;
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m->bmi[i].as_mode.first = read_kf_bmode(r, cm->kf_bmode_prob[a][l]);
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} while (++i < 16);
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}
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}
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if (m->mbmi.mode == I8X8_PRED) {
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int i;
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for (i = 0; i < 4; i++) {
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for (i = 0; i < 4; ++i) {
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const int ib = vp9_i8x8_block[i];
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const int mode8x8 = read_i8x8_mode(r, cm->fc.i8x8_mode_prob);
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@ -190,7 +166,10 @@ static void kfread_modes(VP9D_COMP *pbi, MODE_INFO *m,
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m->bmi[ib + 4].as_mode.first = mode8x8;
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m->bmi[ib + 5].as_mode.first = mode8x8;
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}
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} else {
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}
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// chroma mode
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if (m->mbmi.mode != I8X8_PRED) {
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m->mbmi.uv_mode = read_uv_mode(r, cm->kf_uv_mode_prob[m->mbmi.mode]);
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}
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@ -527,12 +506,10 @@ static void mb_mode_mv_init(VP9D_COMP *pbi, vp9_reader *r) {
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for (i = 0; i < VP9_I32X32_MODES - 1; ++i)
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cm->fc.sb_ymode_prob[i] = vp9_read_prob(r);
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for (j = 0; j < PARTITION_PLANES; j++) {
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if (vp9_read_bit(r)) {
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for (j = 0; j < PARTITION_PLANES; j++)
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if (vp9_read_bit(r))
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for (i = 0; i < PARTITION_TYPES - 1; i++)
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cm->fc.partition_prob[j][i] = vp9_read_prob(r);
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}
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}
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read_nmvprobs(r, nmvc, xd->allow_high_precision_mv);
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}
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@ -541,47 +518,40 @@ static void mb_mode_mv_init(VP9D_COMP *pbi, vp9_reader *r) {
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// This function either reads the segment id for the current macroblock from
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// the bitstream or if the value is temporally predicted asserts the predicted
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// value
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static void read_mb_segment_id(VP9D_COMP *pbi,
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int mb_row, int mb_col,
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vp9_reader *r) {
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static int read_mb_segment_id(VP9D_COMP *pbi, int mb_row, int mb_col,
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vp9_reader *r) {
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VP9_COMMON *const cm = &pbi->common;
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MACROBLOCKD *const xd = &pbi->mb;
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MODE_INFO *const mi = xd->mode_info_context;
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MB_MODE_INFO *const mbmi = &mi->mbmi;
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const int mb_index = mb_row * cm->mb_cols + mb_col;
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if (xd->segmentation_enabled) {
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if (xd->update_mb_segmentation_map) {
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// Is temporal coding of the segment id for this mb enabled.
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if (cm->temporal_update) {
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// Get the context based probability for reading the
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// prediction status flag
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vp9_prob pred_prob = vp9_get_pred_prob(cm, xd, PRED_SEG_ID);
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if (!xd->segmentation_enabled)
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return 0; // Default for disabled segmentation
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// Read the prediction status flag
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unsigned char seg_pred_flag = vp9_read(r, pred_prob);
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if (xd->update_mb_segmentation_map) {
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int segment_id;
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// Store the prediction flag.
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vp9_set_pred_flag(xd, PRED_SEG_ID, seg_pred_flag);
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if (cm->temporal_update) {
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// Temporal coding of the segment id for this mb is enabled.
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// Get the context based probability for reading the
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// prediction status flag
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const vp9_prob pred_prob = vp9_get_pred_prob(cm, xd, PRED_SEG_ID);
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const int pred_flag = vp9_read(r, pred_prob);
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vp9_set_pred_flag(xd, PRED_SEG_ID, pred_flag);
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// If the value is flagged as correctly predicted
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// then use the predicted value, otherwise decode it explicitly
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mbmi->segment_id = seg_pred_flag ?
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vp9_get_pred_mb_segid(cm, xd, mb_index) :
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read_mb_segid_except(r, cm, xd, mb_row, mb_col);
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} else {
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// Normal unpredicted coding mode
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mbmi->segment_id = read_mb_segid(r, xd);
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}
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set_segment_id(cm, mbmi, mb_row, mb_col, mbmi->segment_id);
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// If the value is flagged as correctly predicted
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// then use the predicted value, otherwise decode it explicitly
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segment_id = pred_flag ? vp9_get_pred_mb_segid(cm, mbmi->sb_type,
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mb_row, mb_col)
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: read_mb_segid_except(r, cm, xd, mb_row, mb_col);
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} else {
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mbmi->segment_id = get_segment_id(cm, mbmi, mb_row, mb_col);
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segment_id = read_mb_segid(r, xd); // Normal unpredicted coding mode
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}
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set_segment_id(cm, mbmi, mb_row, mb_col, segment_id); // Side effect
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return segment_id;
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} else {
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// The encoder explicitly sets the segment_id to 0
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// when segmentation is disabled
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mbmi->segment_id = 0;
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return vp9_get_pred_mb_segid(cm, mbmi->sb_type, mb_row, mb_col);
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}
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}
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@ -656,7 +626,7 @@ static void read_mb_modes_mv(VP9D_COMP *pbi, MODE_INFO *mi, MB_MODE_INFO *mbmi,
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mb_to_right_edge = xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN;
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// Read the macroblock segment id.
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read_mb_segment_id(pbi, mb_row, mb_col, r);
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mbmi->segment_id = read_mb_segment_id(pbi, mb_row, mb_col, r);
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mbmi->mb_skip_coeff = vp9_segfeature_active(xd, mbmi->segment_id,
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SEG_LVL_SKIP);
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@ -554,9 +554,9 @@ static void write_mb_segid_except(VP9_COMMON *cm,
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const MACROBLOCKD *xd,
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int mb_row, int mb_col) {
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// Encode the MB segment id.
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int seg_id = mi->segment_id;
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int pred_seg_id = vp9_get_pred_mb_segid(cm, xd,
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mb_row * cm->mb_cols + mb_col);
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const int seg_id = mi->segment_id;
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const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type;
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const int pred_seg_id = vp9_get_pred_mb_segid(cm, sb_type, mb_row, mb_col);
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const vp9_prob *p = xd->mb_segment_tree_probs;
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const vp9_prob p1 = xd->mb_segment_mispred_tree_probs[pred_seg_id];
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@ -171,7 +171,6 @@ static void count_segs(VP9_COMP *cpi,
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int bw, int bh, int mb_row, int mb_col) {
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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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const int segmap_index = mb_row * cm->mb_cols + mb_col;
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const int segment_id = mi->mbmi.segment_id;
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xd->mode_info_context = mi;
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@ -184,7 +183,8 @@ static void count_segs(VP9_COMP *cpi,
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// Temporal prediction not allowed on key frames
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if (cm->frame_type != KEY_FRAME) {
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// Test to see if the segment id matches the predicted value.
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const int pred_seg_id = vp9_get_pred_mb_segid(cm, xd, segmap_index);
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const int pred_seg_id = vp9_get_pred_mb_segid(cm, mi->mbmi.sb_type,
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mb_row, mb_col);
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const int seg_predicted = (segment_id == pred_seg_id);
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// Get the segment id prediction context
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