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hevc: use intreadwrite

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When dealing with MVs, both components may be processed at a time.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Christophe Gisquet 2014-08-08 18:21:02 +00:00 committed by Anton Khirnov
parent ed53cc217f
commit cf6090dc62
3 changed files with 13 additions and 18 deletions
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3
libavcodec/hevc.c
View File

@ -1714,8 +1714,7 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
}
if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
lc->pu.mvd.x = 0;
lc->pu.mvd.y = 0;
AV_ZERO32(&lc->pu.mvd);
} else {
hls_mvd_coding(s, x0, y0, 1);
}

2
libavcodec/hevc.h
View File

@ -621,7 +621,7 @@ typedef struct Mv {
} Mv;
typedef struct MvField {
Mv mv[2];
DECLARE_ALIGNED(4, Mv, mv)[2];
int8_t ref_idx[2];
int8_t pred_flag[2];
uint8_t is_intra;

26
libavcodec/hevc_mvs.c
View File

@ -118,20 +118,21 @@ static int isDiffMER(HEVCContext *s, int xN, int yN, int xP, int yP)
yN >> plevel == yP >> plevel;
}
#define MATCH_MV(x) (AV_RN32A(&A.x) == AV_RN32A(&B.x))
#define MATCH(x) (A.x == B.x)
// check if the mv's and refidx are the same between A and B
static int compareMVrefidx(struct MvField A, struct MvField B)
{
if (A.pred_flag[0] && A.pred_flag[1] && B.pred_flag[0] && B.pred_flag[1])
return MATCH(ref_idx[0]) && MATCH(mv[0].x) && MATCH(mv[0].y) &&
MATCH(ref_idx[1]) && MATCH(mv[1].x) && MATCH(mv[1].y);
return MATCH(ref_idx[0]) && MATCH_MV(mv[0]) &&
MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
if (A.pred_flag[0] && !A.pred_flag[1] && B.pred_flag[0] && !B.pred_flag[1])
return MATCH(ref_idx[0]) && MATCH(mv[0].x) && MATCH(mv[0].y);
return MATCH(ref_idx[0]) && MATCH_MV(mv[0]);
if (!A.pred_flag[0] && A.pred_flag[1] && !B.pred_flag[0] && B.pred_flag[1])
return MATCH(ref_idx[1]) && MATCH(mv[1].x) && MATCH(mv[1].y);
return MATCH(ref_idx[1]) && MATCH_MV(mv[1]);
return 0;
}
@ -508,16 +509,13 @@ static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
if (l0_cand.pred_flag[0] && l1_cand.pred_flag[1] &&
(refPicList[0].list[l0_cand.ref_idx[0]] !=
refPicList[1].list[l1_cand.ref_idx[1]] ||
l0_cand.mv[0].x != l1_cand.mv[1].x ||
l0_cand.mv[0].y != l1_cand.mv[1].y)) {
AV_RN32A(&l0_cand.mv[0]) != AV_RN32A(&l1_cand.mv[1]))) {
mergecandlist[nb_merge_cand].ref_idx[0] = l0_cand.ref_idx[0];
mergecandlist[nb_merge_cand].ref_idx[1] = l1_cand.ref_idx[1];
mergecandlist[nb_merge_cand].pred_flag[0] = 1;
mergecandlist[nb_merge_cand].pred_flag[1] = 1;
mergecandlist[nb_merge_cand].mv[0].x = l0_cand.mv[0].x;
mergecandlist[nb_merge_cand].mv[0].y = l0_cand.mv[0].y;
mergecandlist[nb_merge_cand].mv[1].x = l1_cand.mv[1].x;
mergecandlist[nb_merge_cand].mv[1].y = l1_cand.mv[1].y;
AV_COPY32(&mergecandlist[nb_merge_cand].mv[0], &l0_cand.mv[0]);
AV_COPY32(&mergecandlist[nb_merge_cand].mv[1], &l1_cand.mv[1]);
mergecandlist[nb_merge_cand].is_intra = 0;
if (merge_idx == nb_merge_cand)
return;
@ -530,10 +528,8 @@ static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
while (nb_merge_cand < s->sh.max_num_merge_cand) {
mergecandlist[nb_merge_cand].pred_flag[0] = 1;
mergecandlist[nb_merge_cand].pred_flag[1] = s->sh.slice_type == B_SLICE;
mergecandlist[nb_merge_cand].mv[0].x = 0;
mergecandlist[nb_merge_cand].mv[0].y = 0;
mergecandlist[nb_merge_cand].mv[1].x = 0;
mergecandlist[nb_merge_cand].mv[1].y = 0;
AV_ZERO32(mergecandlist[nb_merge_cand].mv + 0);
AV_ZERO32(mergecandlist[nb_merge_cand].mv + 1);
mergecandlist[nb_merge_cand].is_intra = 0;
mergecandlist[nb_merge_cand].ref_idx[0] = zero_idx < nb_refs ? zero_idx : 0;
mergecandlist[nb_merge_cand].ref_idx[1] = zero_idx < nb_refs ? zero_idx : 0;
@ -554,7 +550,7 @@ void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0, int nPbW,
{
int singleMCLFlag = 0;
int nCS = 1 << log2_cb_size;
struct MvField mergecand_list[MRG_MAX_NUM_CANDS] = { { { { 0 } } } };
LOCAL_ALIGNED(4, MvField, mergecand_list, [MRG_MAX_NUM_CANDS]);
int nPbW2 = nPbW;
int nPbH2 = nPbH;
HEVCLocalContext *lc = &s->HEVClc;