RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-01-10 09:09:50 +00:00
Code Issues Projects Releases Wiki Activity

hevc_mvs: make sure to always initialize the temporal MV fully

Browse Source 
The spec requires this.

Fixes uninitialized reads on some samples.

Remove now unnecessary initialization of the whole merge candidate list.
This commit is contained in:
Anton Khirnov 2014-09-29 16:25:14 +00:00 committed by Vittorio Giovara
parent de31f85707
commit 0b41eeac45
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
libavcodec/hevc_mvs.c
View File

@ -481,14 +481,10 @@ static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
mergecandlist[nb_merge_cand].is_intra = 0;
mergecandlist[nb_merge_cand].pred_flag[0] = available_l0;
mergecandlist[nb_merge_cand].pred_flag[1] = available_l1;
if (available_l0) {
mergecandlist[nb_merge_cand].mv[0] = mv_l0_col;
mergecandlist[nb_merge_cand].ref_idx[0] = 0;
}
if (available_l1) {
mergecandlist[nb_merge_cand].mv[1] = mv_l1_col;
mergecandlist[nb_merge_cand].ref_idx[1] = 0;
}
AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx);
mergecandlist[nb_merge_cand].mv[0] = mv_l0_col;
mergecandlist[nb_merge_cand].mv[1] = mv_l1_col;
if (merge_idx == nb_merge_cand)
return;
nb_merge_cand++;
@ -558,8 +554,6 @@ void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0, int nPbW,
int nPbH2 = nPbH;
HEVCLocalContext *lc = &s->HEVClc;
memset(mergecand_list, 0, MRG_MAX_NUM_CANDS * sizeof(*mergecand_list));
if (s->pps->log2_parallel_merge_level > 2 && nCS == 8) {
singleMCLFlag = 1;
x0 = lc->cu.x;