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Merge "Early termination after partition NONE is done in RD."

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Pengchong Jin 2014-07-30 13:35:02 -07:00 committed by Gerrit Code Review
commit 7f29d22e51
1 changed files with 55 additions and 0 deletions
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55
vp9/encoder/vp9_encodeframe.c
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@ -1888,6 +1888,15 @@ static INLINE void load_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) {
vpx_memcpy(x->pred_mv, ctx->pred_mv, sizeof(x->pred_mv));
}
#if CONFIG_FP_MB_STATS
const int num_16x16_blocks_wide_lookup[BLOCK_SIZES] =
{1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 4, 4};
const int num_16x16_blocks_high_lookup[BLOCK_SIZES] =
{1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 4};
const int qindex_skip_threshold_lookup[BLOCK_SIZES] =
{0, 10, 10, 30, 40, 40, 60, 80, 80, 90, 100, 100, 120};
#endif
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
// unlikely to be selected depending on previous rate-distortion optimization
// results, for encoding speed-up.
@ -1993,6 +2002,52 @@ static void rd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
do_split = 0;
do_rect = 0;
}
#if CONFIG_FP_MB_STATS
// Check if every 16x16 first pass block statistics has zero
// motion and the corresponding first pass residue is small enough.
// If that is the case, check the difference variance between the
// current frame and the last frame. If the variance is small enough,
// stop further splitting in RD optimization
if (cpi->use_fp_mb_stats && do_split != 0 &&
cm->base_qindex > qindex_skip_threshold_lookup[bsize]) {
VP9_COMMON *cm = &cpi->common;
int mb_row = mi_row >> 1;
int mb_col = mi_col >> 1;
int mb_row_end =
MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows);
int mb_col_end =
MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols);
int r, c;
int skip = 1;
for (r = mb_row; r < mb_row_end; r++) {
for (c = mb_col; c < mb_col_end; c++) {
const int mb_index = r * cm->mb_cols + c;
if ((cpi->twopass.this_frame_mb_stats[mb_index] &
FPMB_NONZERO_MOTION_MASK) ||
!(cpi->twopass.this_frame_mb_stats[mb_index] &
FPMB_ERROR_LEVEL0_MASK)) {
skip = 0;
break;
}
}
if (skip == 0) {
break;
}
}
if (skip) {
unsigned int var;
set_offsets(cpi, tile, mi_row, mi_col, bsize);
var = get_sby_perpixel_diff_variance(cpi, &cpi->mb.plane[0].src,
mi_row, mi_col, bsize);
if (var < 8) {
do_split = 0;
do_rect = 0;
}
}
}
#endif
}
}
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);