}
}
+const struct {
+ int row;
+ int col;
+} coord_lookup[16] = {
+ // 32x32 index = 0
+ {0, 0}, {0, 2}, {2, 0}, {2, 2},
+ // 32x32 index = 1
+ {0, 4}, {0, 6}, {2, 4}, {2, 6},
+ // 32x32 index = 2
+ {4, 0}, {4, 2}, {6, 0}, {6, 2},
+ // 32x32 index = 3
+ {4, 4}, {4, 6}, {6, 4}, {6, 6},
+};
+
+static void set_source_var_based_partition(VP9_COMP *cpi,
+ const TileInfo *const tile,
+ MODE_INFO **mi_8x8,
+ int mi_row, int mi_col) {
+ VP9_COMMON *const cm = &cpi->common;
+ MACROBLOCK *x = &cpi->mb;
+
+ const int mis = cm->mode_info_stride;
+ int row8x8_remaining = tile->mi_row_end - mi_row;
+ int col8x8_remaining = tile->mi_col_end - mi_col;
+ int r, c;
+ MODE_INFO *mi_upper_left = cm->mi + mi_row * mis + mi_col;
+
+ assert((row8x8_remaining > 0) && (col8x8_remaining > 0));
+
+ // In-image SB64
+ if ((col8x8_remaining >= MI_BLOCK_SIZE) &&
+ (row8x8_remaining >= MI_BLOCK_SIZE)) {
+ const int src_stride = x->plane[0].src.stride;
+ const int pre_stride = cpi->Last_Source->y_stride;
+ const uint8_t *src = x->plane[0].src.buf;
+ const int pre_offset = (mi_row * MI_SIZE) * pre_stride +
+ (mi_col * MI_SIZE);
+ const uint8_t *pre_src = cpi->Last_Source->y_buffer + pre_offset;
+ const int thr_32x32 = cpi->sf.source_var_thresh;
+ const int thr_64x64 = thr_32x32 << 1;
+ int i, j;
+ int index;
+ diff d32[4];
+ int use16x16 = 0;
+
+ for (i = 0; i < 4; i++) {
+ diff d16[4];
+
+ for (j = 0; j < 4; j++) {
+ int b_mi_row = coord_lookup[i * 4 + j].row;
+ int b_mi_col = coord_lookup[i * 4 + j].col;
+ int b_offset = b_mi_row * MI_SIZE * src_stride +
+ b_mi_col * MI_SIZE;
+
+ vp9_get_sse_sum_16x16(src + b_offset,
+ src_stride,
+ pre_src + b_offset,
+ pre_stride, &d16[j].sse, &d16[j].sum);
+
+ d16[j].var = d16[j].sse -
+ (((uint32_t)d16[j].sum * d16[j].sum) >> 8);
+
+ index = b_mi_row * mis + b_mi_col;
+ mi_8x8[index] = mi_upper_left + index;
+ mi_8x8[index]->mbmi.sb_type = BLOCK_16X16;
+
+ // TODO(yunqingwang): If d16[j].var is very large, use 8x8 partition
+ // size to further improve quality.
+ }
+
+ if (d16[0].var < thr_32x32 && d16[1].var < thr_32x32 &&
+ d16[2].var < thr_32x32 && d16[3].var < thr_32x32) {
+ d32[i].sse = d16[0].sse;
+ d32[i].sum = d16[0].sum;
+
+ for (j = 1; j < 4; j++) {
+ d32[i].sse += d16[j].sse;
+ d32[i].sum += d16[j].sum;
+ }
+
+ d32[i].var = d32[i].sse - (((int64_t)d32[i].sum * d32[i].sum) >> 10);
+
+ index = coord_lookup[i*4].row * mis + coord_lookup[i*4].col;
+ mi_8x8[index] = mi_upper_left + index;
+ mi_8x8[index]->mbmi.sb_type = BLOCK_32X32;
+
+ if (!((cm->current_video_frame - 1) %
+ cpi->sf.search_type_check_frequency))
+ cpi->use_large_partition_rate += 1;
+ } else {
+ use16x16 = 1;
+ }
+ }
+
+ if (!use16x16) {
+ if (d32[0].var < thr_64x64 && d32[1].var < thr_64x64 &&
+ d32[2].var < thr_64x64 && d32[3].var < thr_64x64) {
+ mi_8x8[0] = mi_upper_left;
+ mi_8x8[0]->mbmi.sb_type = BLOCK_64X64;
+ }
+ }
+ } else { // partial in-image SB64
+ BLOCK_SIZE bsize = BLOCK_16X16;
+ int bh = num_8x8_blocks_high_lookup[bsize];
+ int bw = num_8x8_blocks_wide_lookup[bsize];
+
+ for (r = 0; r < MI_BLOCK_SIZE; r += bh) {
+ for (c = 0; c < MI_BLOCK_SIZE; c += bw) {
+ int index = r * mis + c;
+ // Find a partition size that fits
+ bsize = find_partition_size(bsize,
+ (row8x8_remaining - r),
+ (col8x8_remaining - c), &bh, &bw);
+ mi_8x8[index] = mi_upper_left + index;
+ mi_8x8[index]->mbmi.sb_type = bsize;
+ }
+ }
+ }
+}
+
static int sb_has_motion(const VP9_COMMON *cm, MODE_INFO **prev_mi_8x8) {
const int mis = cm->mode_info_stride;
int block_row, block_col;
const int idx_str = cm->mode_info_stride * mi_row + mi_col;
MODE_INFO **mi_8x8 = cm->mi_grid_visible + idx_str;
MODE_INFO **prev_mi_8x8 = cm->prev_mi_grid_visible + idx_str;
-
- BLOCK_SIZE bsize = cpi->sf.partition_search_type == FIXED_PARTITION ?
- cpi->sf.always_this_block_size :
- get_nonrd_var_based_fixed_partition(cpi, mi_row, mi_col);
+ BLOCK_SIZE bsize;
cpi->mb.source_variance = UINT_MAX;
vp9_zero(cpi->mb.pred_mv);
nonrd_use_partition(cpi, tile, mi_8x8, tp, mi_row, mi_col, BLOCK_64X64,
1, &dummy_rate, &dummy_dist);
break;
+ case SOURCE_VAR_BASED_PARTITION:
+ set_offsets(cpi, tile, mi_row, mi_col, BLOCK_64X64);
+ set_source_var_based_partition(cpi, tile, mi_8x8, mi_row, mi_col);
+ nonrd_use_partition(cpi, tile, mi_8x8, tp, mi_row, mi_col, BLOCK_64X64,
+ 1, &dummy_rate, &dummy_dist);
+ break;
case VAR_BASED_FIXED_PARTITION:
case FIXED_PARTITION:
+ bsize = cpi->sf.partition_search_type == FIXED_PARTITION ?
+ cpi->sf.always_this_block_size :
+ get_nonrd_var_based_fixed_partition(cpi, mi_row, mi_col);
set_fixed_partitioning(cpi, tile, mi_8x8, mi_row, mi_col, bsize);
nonrd_use_partition(cpi, tile, mi_8x8, tp, mi_row, mi_col, BLOCK_64X64,
1, &dummy_rate, &dummy_dist);
p[i].eobs = ctx->eobs_pbuf[i][0];
}
vp9_zero(x->zcoeff_blk);
+
+ if (cpi->sf.partition_search_type == SOURCE_VAR_BASED_PARTITION &&
+ cm->current_video_frame > 0) {
+ int check_freq = cpi->sf.search_type_check_frequency;
+
+ if ((cm->current_video_frame - 1) % check_freq == 0) {
+ cpi->use_large_partition_rate = 0;
+ }
+
+ if ((cm->current_video_frame - 1) % check_freq == 1) {
+ const int mbs_in_b32x32 = 1 << ((b_width_log2_lookup[BLOCK_32X32] -
+ b_width_log2_lookup[BLOCK_16X16]) +
+ (b_height_log2_lookup[BLOCK_32X32] -
+ b_height_log2_lookup[BLOCK_16X16]));
+ cpi->use_large_partition_rate = cpi->use_large_partition_rate * 100 *
+ mbs_in_b32x32 / cm->MBs;
+ }
+
+ if ((cm->current_video_frame - 1) % check_freq >= 1) {
+ if (cpi->use_large_partition_rate < 15)
+ cpi->sf.partition_search_type = FIXED_PARTITION;
+ }
+ }
}
{
projects / libvpx / commitdiff