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Skip nearest/near/zero redundant encodes.

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Encode of first 50 frames of bus @ 1500kbps (speed 0) goes from 1min12.8
to 1min7.3, i.e. 8% faster.

Change-Id: Ia22d1c7b687316c553cc60eacae988b24e175b62
This commit is contained in:
Ronald S. Bultje 2013-07-17 11:33:15 -07:00
parent 9f427bfe98
commit 8fea880b6f
1 changed files with 27 additions and 2 deletions
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29
vp9/encoder/vp9_rdopt.c
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@ -2610,7 +2610,7 @@ static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
int *rate_uv, int64_t *distortion_uv,
int *mode_excluded, int *disable_skip,
INTERPOLATIONFILTERTYPE *best_filter,
int_mv *frame_mv,
int_mv (*mode_mv)[MAX_REF_FRAMES],
int mi_row, int mi_col,
int_mv single_newmv[MAX_REF_FRAMES],
int64_t *psse, int64_t ref_best_rd) {
@ -2620,6 +2620,7 @@ static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
const int is_comp_pred = (mbmi->ref_frame[1] > 0);
const int num_refs = is_comp_pred ? 2 : 1;
const int this_mode = mbmi->mode;
int_mv *frame_mv = mode_mv[this_mode];
int i;
int refs[2] = { mbmi->ref_frame[0],
(mbmi->ref_frame[1] < 0 ? 0 : mbmi->ref_frame[1]) };
@ -2677,6 +2678,30 @@ static int64_t handle_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
default:
break;
}
// if we're near/nearest and mv == 0,0, compare to zeromv
if ((this_mode == NEARMV || this_mode == NEARESTMV || this_mode == ZEROMV) &&
frame_mv[refs[0]].as_int == 0 &&
!vp9_segfeature_active(&xd->seg, mbmi->segment_id, SEG_LVL_SKIP) &&
(num_refs == 1 || frame_mv[refs[1]].as_int == 0)) {
int rfc = mbmi->mb_mode_context[mbmi->ref_frame[0]];
int c1 = cost_mv_ref(cpi, NEARMV, rfc);
int c2 = cost_mv_ref(cpi, NEARESTMV, rfc);
int c3 = cost_mv_ref(cpi, ZEROMV, rfc);
if (this_mode == NEARMV) {
if (c1 >= c2 || c1 > c3)
return INT64_MAX;
} else if (this_mode == NEARESTMV) {
if (c2 > c1 || c2 > c3)
return INT64_MAX;
} else {
assert(this_mode == ZEROMV);
if (c3 >= c2 || c3 >= c1)
return INT64_MAX;
}
}
for (i = 0; i < num_refs; ++i) {
cur_mv[i] = frame_mv[refs[i]];
// Clip "next_nearest" so that it does not extend to far out of image
@ -3595,7 +3620,7 @@ int64_t vp9_rd_pick_inter_mode_sb(VP9_COMP *cpi, MACROBLOCK *x,
&rate_y, &distortion_y,
&rate_uv, &distortion_uv,
&mode_excluded, &disable_skip,
&tmp_best_filter, frame_mv[this_mode],
&tmp_best_filter, frame_mv,
mi_row, mi_col,
single_newmv, &total_sse, best_rd);
if (this_rd == INT64_MAX)