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Add skipping of intra search in inter frames for rd=0.

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This commit is contained in:
Ari Koivula 2015-01-14 14:11:12 +02:00
parent c9f310a6c2
commit ab3364afb4
1 changed files with 14 additions and 1 deletions
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15
src/search.c
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@ -47,6 +47,11 @@
&& (x) + (block_width) <= (width) \ && (x) + (block_width) <= (width) \
&& (y) + (block_height) <= (height)) && (y) + (block_height) <= (height))
// Cost treshold for doing intra search in inter frames with --rd=0.
#ifndef INTRA_TRESHOLD
# define INTRA_TRESHOLD 20
#endif
// Extra cost for CU split. // Extra cost for CU split.
// Compensates for missing or incorrect bit costs. Must be recalculated if // Compensates for missing or incorrect bit costs. Must be recalculated if
// bits are added or removed from cu-tree search. // bits are added or removed from cu-tree search.
@ -1875,7 +1880,15 @@ static double search_cu(encoder_state * const encoder_state, int x, int y, int d
} }
} }
if (WITHIN(depth, ctrl->pu_depth_intra.min, ctrl->pu_depth_intra.max)) { // Try to skip intra search in rd==0 mode.
// This can be quite severe on bdrate. It might be better to do this
// decision after reconstructing the inter frame.
bool skip_intra = encoder_state->encoder_control->rdo == 0
&& cur_cu->type == CU_NOTSET
&& cost / (cu_width * cu_width) >= INTRA_TRESHOLD;
if (!skip_intra
&& WITHIN(depth, ctrl->pu_depth_intra.min, ctrl->pu_depth_intra.max))
{
double mode_cost = search_cu_intra(encoder_state, x, y, depth, &work_tree[depth]); double mode_cost = search_cu_intra(encoder_state, x, y, depth, &work_tree[depth]);
if (mode_cost < cost) { if (mode_cost < cost) {
cost = mode_cost; cost = mode_cost;