generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Skip redundant nearest/near/zero encodes in splitmv.

Browse Source 
Encode of first 50 frames of bus @ 1500kbps (speed 0) goes from
1min7.3 to 1min6.2, i.e. 1.7% faster overall.

Change-Id: I19d2deacfbffadd61d32551cee9586757ab4a987
This commit is contained in:
Ronald S. Bultje 2013-07-17 13:53:35 -07:00
parent 8fea880b6f
commit 161c995658
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
vp9/encoder/vp9_rdopt.c
View File

@ -1861,6 +1861,30 @@ static void rd_check_segment_txsize(VP9_COMP *cpi, MACROBLOCK *x,
const struct buf_2d orig_src = x->plane[0].src;
struct buf_2d orig_pre[2];
// if we're near/nearest and mv == 0,0, compare to zeromv
if ((this_mode == NEARMV || this_mode == NEARESTMV ||
this_mode == ZEROMV) &&
frame_mv[this_mode][mbmi->ref_frame[0]].as_int == 0 &&
(mbmi->ref_frame[1] <= 0 ||
frame_mv[this_mode][mbmi->ref_frame[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)
continue;
} else if (this_mode == NEARESTMV) {
if (c2 > c1 || c2 > c3)
continue;
} else {
assert(this_mode == ZEROMV);
if (c3 >= c2 || c3 >= c1)
continue;
}
}
vpx_memcpy(orig_pre, x->e_mbd.plane[0].pre, sizeof(orig_pre));
vpx_memcpy(t_above_s, t_above, sizeof(t_above_s));