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Cleanup conditions in vp9_rd_pick_inter_mode_sb().

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Change-Id: I4e5ca10f7aef2d37fda835b369828d0bbff7c8a0
This commit is contained in:
Alex Converse 2014-02-27 17:01:48 -08:00
parent d54b316f54
commit 4c8d70d771
1 changed files with 44 additions and 53 deletions
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97
vp9/encoder/vp9_rdopt.c
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@ -3338,24 +3338,19 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
ref_frame != best_inter_ref_frame &&
second_ref_frame != best_inter_ref_frame)
continue;
mode_excluded = mode_excluded ?
mode_excluded : cm->reference_mode == SINGLE_REFERENCE;
mode_excluded = cm->reference_mode == SINGLE_REFERENCE;
} else {
if (ref_frame != INTRA_FRAME && second_ref_frame != INTRA_FRAME)
mode_excluded = mode_excluded ?
mode_excluded : cm->reference_mode == COMPOUND_REFERENCE;
if (ref_frame != INTRA_FRAME)
mode_excluded = cm->reference_mode == COMPOUND_REFERENCE;
}
if (ref_frame == INTRA_FRAME) {
if (ref_frame == INTRA_FRAME && this_mode != DC_PRED) {
// Disable intra modes other than DC_PRED for blocks with low variance
// Threshold for intra skipping based on source variance
// TODO(debargha): Specialize the threshold for super block sizes
static const unsigned int skip_intra_var_thresh[BLOCK_SIZES] = {
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
};
const unsigned int skip_intra_var_thresh = 64;
if ((mode_search_skip_flags & FLAG_SKIP_INTRA_LOWVAR) &&
this_mode != DC_PRED &&
x->source_variance < skip_intra_var_thresh[bsize])
x->source_variance < skip_intra_var_thresh)
continue;
// Only search the oblique modes if the best so far is
// one of the neighboring directional modes
@ -3498,19 +3493,18 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
this_rd = RDCOST(x->rdmult, x->rddiv, rate2, distortion2);
}
if (ref_frame == INTRA_FRAME) {
// Keep record of best intra rd
if (!is_inter_block(&xd->mi_8x8[0]->mbmi) &&
this_rd < best_intra_rd) {
best_intra_rd = this_rd;
best_intra_mode = xd->mi_8x8[0]->mbmi.mode;
}
// Keep record of best inter rd with single reference
if (is_inter_block(&xd->mi_8x8[0]->mbmi) &&
!has_second_ref(&xd->mi_8x8[0]->mbmi) &&
!mode_excluded && this_rd < best_inter_rd) {
best_inter_rd = this_rd;
best_inter_ref_frame = ref_frame;
if (this_rd < best_intra_rd) {
best_intra_rd = this_rd;
best_intra_mode = mbmi->mode;
}
} else {
// Keep record of best inter rd with single reference
if (!comp_pred && !mode_excluded && this_rd < best_inter_rd) {
best_inter_rd = this_rd;
best_inter_ref_frame = ref_frame;
}
}
if (!disable_skip && ref_frame == INTRA_FRAME) {
@ -3583,38 +3577,39 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
single_rd = RDCOST(x->rdmult, x->rddiv, single_rate, distortion2);
hybrid_rd = RDCOST(x->rdmult, x->rddiv, hybrid_rate, distortion2);
if (second_ref_frame <= INTRA_FRAME &&
single_rd < best_pred_rd[SINGLE_REFERENCE]) {
best_pred_rd[SINGLE_REFERENCE] = single_rd;
} else if (second_ref_frame > INTRA_FRAME &&
single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
best_pred_rd[COMPOUND_REFERENCE] = single_rd;
if (!comp_pred) {
if (single_rd < best_pred_rd[SINGLE_REFERENCE]) {
best_pred_rd[SINGLE_REFERENCE] = single_rd;
}
} else {
if (single_rd < best_pred_rd[COMPOUND_REFERENCE]) {
best_pred_rd[COMPOUND_REFERENCE] = single_rd;
}
}
if (hybrid_rd < best_pred_rd[REFERENCE_MODE_SELECT])
best_pred_rd[REFERENCE_MODE_SELECT] = hybrid_rd;
}
/* keep record of best filter type */
if (!mode_excluded && !disable_skip && ref_frame != INTRA_FRAME &&
cm->interp_filter != BILINEAR) {
int64_t ref = cpi->rd_filter_cache[cm->interp_filter == SWITCHABLE ?
/* keep record of best filter type */
if (!mode_excluded && cm->interp_filter != BILINEAR) {
int64_t ref = cpi->rd_filter_cache[cm->interp_filter == SWITCHABLE ?
SWITCHABLE_FILTERS : cm->interp_filter];
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
int64_t adj_rd;
if (ref == INT64_MAX)
adj_rd = 0;
else if (cpi->rd_filter_cache[i] == INT64_MAX)
// when early termination is triggered, the encoder does not have
// access to the rate-distortion cost. it only knows that the cost
// should be above the maximum valid value. hence it takes the known
// maximum plus an arbitrary constant as the rate-distortion cost.
adj_rd = cpi->mask_filter_rd - ref + 10;
else
adj_rd = cpi->rd_filter_cache[i] - ref;
for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++) {
int64_t adj_rd;
if (ref == INT64_MAX)
adj_rd = 0;
else if (cpi->rd_filter_cache[i] == INT64_MAX)
// when early termination is triggered, the encoder does not have
// access to the rate-distortion cost. it only knows that the cost
// should be above the maximum valid value. hence it takes the known
// maximum plus an arbitrary constant as the rate-distortion cost.
adj_rd = cpi->mask_filter_rd - ref + 10;
else
adj_rd = cpi->rd_filter_cache[i] - ref;
adj_rd += this_rd;
best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
adj_rd += this_rd;
best_filter_rd[i] = MIN(best_filter_rd[i], adj_rd);
}
}
}
@ -3706,11 +3701,6 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
}
if (cm->interp_filter == SWITCHABLE)
assert(best_filter_diff[SWITCHABLE_FILTERS] == 0);
} else {
vp9_zero(best_filter_diff);
}
if (!x->skip) {
for (i = 0; i < TX_MODES; i++) {
if (best_tx_rd[i] == INT64_MAX)
best_tx_diff[i] = 0;
@ -3718,6 +3708,7 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
best_tx_diff[i] = best_rd - best_tx_rd[i];
}
} else {
vp9_zero(best_filter_diff);
vp9_zero(best_tx_diff);
}