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hevc_mvs: make sure to always initialize the temporal MV fully 

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
parent 79a60c8e77
commit d208d1eba3
1 changed files with 4 additions and 10 deletions
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14
libavcodec/hevc_mvs.c
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@ -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;