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Code Issues Releases Activity

vc1: Use the correct shift amount

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`is_intra` is a 6bits bitfield.

CC: libav-stable@libav.org
Bug-Id: CID 1194380 / CID 1194381

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Michael Niedermayer 2014-11-24 00:44:48 +01:00 committed by Vittorio Giovara
parent d25afb579f
commit 51946d2de8
1 changed files with 7 additions and 7 deletions
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14
libavcodec/vc1_loopfilter.c
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@ -224,14 +224,14 @@ static av_always_inline void vc1_apply_p_v_loop_filter(VC1Context *v, int block_
if (block_num > 3) {
bottom_cbp = v->cbp[s->mb_x] >> (block_num * 4);
bottom_is_intra = v->is_intra[s->mb_x] >> (block_num * 4);
bottom_is_intra = v->is_intra[s->mb_x] >> block_num;
mv = &v->luma_mv[s->mb_x - s->mb_stride];
mv_stride = s->mb_stride;
} else {
bottom_cbp = (block_num < 2) ? (mb_cbp >> ((block_num + 2) * 4))
: (v->cbp[s->mb_x] >> ((block_num - 2) * 4));
bottom_is_intra = (block_num < 2) ? (mb_is_intra >> ((block_num + 2) * 4))
: (v->is_intra[s->mb_x] >> ((block_num - 2) * 4));
bottom_is_intra = (block_num < 2) ? (mb_is_intra >> (block_num + 2))
: (v->is_intra[s->mb_x] >> (block_num - 2));
mv_stride = s->b8_stride;
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - 2 * mv_stride];
}
@ -273,7 +273,7 @@ static av_always_inline void vc1_apply_p_h_loop_filter(VC1Context *v, int block_
int mb_cbp = v->cbp[s->mb_x - 1 - s->mb_stride],
block_cbp = mb_cbp >> (block_num * 4), right_cbp,
mb_is_intra = v->is_intra[s->mb_x - 1 - s->mb_stride],
block_is_intra = mb_is_intra >> (block_num * 4), right_is_intra;
block_is_intra = mb_is_intra >> block_num, right_is_intra;
int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk;
uint8_t *dst;
@ -288,13 +288,13 @@ static av_always_inline void vc1_apply_p_h_loop_filter(VC1Context *v, int block_
if (block_num > 3) {
right_cbp = v->cbp[s->mb_x - s->mb_stride] >> (block_num * 4);
right_is_intra = v->is_intra[s->mb_x - s->mb_stride] >> (block_num * 4);
right_is_intra = v->is_intra[s->mb_x - s->mb_stride] >> block_num;
mv = &v->luma_mv[s->mb_x - s->mb_stride - 1];
} else {
right_cbp = (block_num & 1) ? (v->cbp[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4))
: (mb_cbp >> ((block_num + 1) * 4));
right_is_intra = (block_num & 1) ? (v->is_intra[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4))
: (mb_is_intra >> ((block_num + 1) * 4));
right_is_intra = (block_num & 1) ? (v->is_intra[s->mb_x - s->mb_stride] >> (block_num - 1))
: (mb_is_intra >> (block_num + 1));
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - s->b8_stride * 2 - 2];
}
if (block_is_intra & 1 || right_is_intra & 1 || mv[0][0] != mv[1][0] || mv[0][1] != mv[1][1]) {