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*2 /2 is wrong for PAFF references, so do not do it.

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Originally committed as revision 14544 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-08-04 23:29:34 +00:00
parent f0538030da
commit 6c86c44b83
1 changed files with 5 additions and 2 deletions
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7
libavcodec/h264.c
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@ -1160,6 +1160,7 @@ static inline void pred_direct_motion(H264Context * const h, int *mb_type){
const int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
int mb_types_col[2];
int y_shift;
int ref_shift;
*mb_type = MB_TYPE_8x8|MB_TYPE_L0L1
| (is_b8x8 ? 0 : MB_TYPE_DIRECT2)
@ -1177,6 +1178,7 @@ static inline void pred_direct_motion(H264Context * const h, int *mb_type){
l1mv1 -= 4*h->b_stride;
}
y_shift = 0;
ref_shift= FRAME_MBAFF ? 0 : 1;
if( (mb_types_col[0] & MB_TYPE_16x16_OR_INTRA)
&& (mb_types_col[1] & MB_TYPE_16x16_OR_INTRA)
@ -1196,6 +1198,7 @@ static inline void pred_direct_motion(H264Context * const h, int *mb_type){
l1mv0 += 2*dy*h->b_stride;
l1mv1 += 2*dy*h->b_stride;
y_shift = 2;
ref_shift= FRAME_MBAFF ? 2 : 1;
if((mb_types_col[0] & (MB_TYPE_16x16_OR_INTRA|MB_TYPE_16x8))
&& !is_b8x8)
@ -1224,9 +1227,9 @@ static inline void pred_direct_motion(H264Context * const h, int *mb_type){
ref0 = l1ref0[x8 + (y8*2>>y_shift)*h->b8_stride];
if(ref0 >= 0)
ref0 = map_col_to_list0[0][ref0*2>>y_shift];
ref0 = map_col_to_list0[0][ref0*2>>ref_shift];
else{
ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>y_shift];
ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>ref_shift];
l1mv= l1mv1;
}
scale = dist_scale_factor[ref0];