static int read_inter_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col, vp9_reader *r) {
struct segmentation *const seg = &cm->seg;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
const BLOCK_SIZE bsize = mbmi->sb_type;
int predicted_segment_id, segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
predicted_segment_id = vp9_get_segment_id(cm, cm->last_frame_seg_map,
bsize, mi_row, mi_col);
if (!seg->update_map)
return predicted_segment_id;
if (seg->temporal_update) {
const vp9_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
mbmi->seg_id_predicted = vp9_read(r, pred_prob);
segment_id = mbmi->seg_id_predicted ? predicted_segment_id
: read_segment_id(r, seg);
} else {
segment_id = read_segment_id(r, seg);
}
set_segment_id(cm, bsize, mi_row, mi_col, segment_id);
return segment_id;
}
static int read_intra_segment_id(VP10_COMMON *const cm, int mi_offset,
int x_mis, int y_mis,
vpx_reader *r) {
struct segmentation *const seg = &cm->seg;
int segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
assert(seg->update_map && !seg->temporal_update);
segment_id = read_segment_id(r, seg);
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}
static int read_intra_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col,
vp9_reader *r) {
struct segmentation *const seg = &cm->seg;
const BLOCK_SIZE bsize = xd->mi_8x8[0]->mbmi.sb_type;
int segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
if (!seg->update_map)
return 0;
segment_id = read_segment_id(r, seg);
set_segment_id(cm, bsize, mi_row, mi_col, segment_id);
return segment_id;
}
static int read_intra_segment_id(VP9_COMMON *const cm, BLOCK_SIZE bsize,
int mi_row, int mi_col,
vp9_reader *r) {
struct segmentation *const seg = &cm->seg;
int segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
if (!seg->update_map) {
copy_segment_id(cm, cm->last_frame_seg_map, cm->current_frame_seg_map,
bsize, mi_row, mi_col);
return 0;
}
segment_id = read_segment_id(r, seg);
set_segment_id(cm, bsize, mi_row, mi_col, segment_id);
return segment_id;
}
static int read_intra_segment_id(VP9_COMMON *const cm, int mi_offset,
int x_mis, int y_mis,
vpx_reader *r) {
struct segmentation *const seg = &cm->seg;
int segment_id;
if (!seg->enabled)
return 0; // Default for disabled segmentation
if (!seg->update_map) {
copy_segment_id(cm, cm->last_frame_seg_map, cm->current_frame_seg_map,
mi_offset, x_mis, y_mis);
return 0;
}
segment_id = read_segment_id(r, seg);
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}
static int read_inter_segment_id(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int mi_row, int mi_col, vpx_reader *r) {
struct segmentation *const seg = &cm->seg;
MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi;
int predicted_segment_id, segment_id;
const int mi_offset = mi_row * cm->mi_cols + mi_col;
const int bw = xd->plane[0].n4_w >> 1;
const int bh = xd->plane[0].n4_h >> 1;
// TODO(slavarnway): move x_mis, y_mis into xd ?????
const int x_mis = MIN(cm->mi_cols - mi_col, bw);
const int y_mis = MIN(cm->mi_rows - mi_row, bh);
if (!seg->enabled)
return 0; // Default for disabled segmentation
predicted_segment_id = cm->last_frame_seg_map ?
dec_get_segment_id(cm, cm->last_frame_seg_map, mi_offset, x_mis, y_mis) :
0;
if (!seg->update_map) {
copy_segment_id(cm, cm->last_frame_seg_map, cm->current_frame_seg_map,
mi_offset, x_mis, y_mis);
return predicted_segment_id;
}
if (seg->temporal_update) {
const vpx_prob pred_prob = vp9_get_pred_prob_seg_id(seg, xd);
mbmi->seg_id_predicted = vpx_read(r, pred_prob);
segment_id = mbmi->seg_id_predicted ? predicted_segment_id
: read_segment_id(r, seg);
} else {
segment_id = read_segment_id(r, seg);
}
set_segment_id(cm, mi_offset, x_mis, y_mis, segment_id);
return segment_id;
}