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Swap back and forward motion vectors to achieve correct picture

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Originally committed as revision 6237 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-09-12 04:35:11 +00:00
parent 1884a48bee
commit e179fbc850
1 changed files with 11 additions and 1 deletions
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12
libavcodec/vc1.c
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@ -2104,6 +2104,16 @@ static always_inline int scale_mv(int value, int bfrac, int inv, int qs)
*/
static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode)
{
int t;
//XXX: more elegant solution is possible
t = v->s.mv[0][0][0];
v->s.mv[0][0][0] = v->s.mv[1][0][0];
v->s.mv[1][0][0] = t;
t = v->s.mv[0][0][1];
v->s.mv[0][0][1] = v->s.mv[1][0][1];
v->s.mv[1][0][1] = t;
if(direct) {
vc1_mc_1mv(v, 0);
vc1_interp_mc(v);
@ -2115,7 +2125,7 @@ static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direc
return;
}
vc1_mc_1mv(v, (mode == BMV_TYPE_FORWARD));
vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD));
}
static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype)