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mv vissualization & field picture fix

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Originally committed as revision 2610 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-12-14 20:48:12 +00:00
parent fad05f523c
commit 31b1ec5d38
1 changed files with 6 additions and 3 deletions
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9
libavcodec/mpeg12.c
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@ -2161,11 +2161,14 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
if (ret < 0)
return -1;
if(s->current_picture.motion_val[0]){ //note motion_val is normally NULL unless we want to extract the MVs
const int wrap = s->block_wrap[0];
const int xy = s->mb_x*2 + 1 + (s->mb_y*2 +1)*wrap;
if(s->current_picture.motion_val[0] && !s->encoding){ //note motion_val is normally NULL unless we want to extract the MVs
const int wrap = field_pic ? 2*s->block_wrap[0] : s->block_wrap[0];
int xy = s->mb_x*2 + 1 + (s->mb_y*2 +1)*wrap;
int motion_for_top_x, motion_for_top_y, motion_back_top_x, motion_back_top_y;
int motion_for_bottom_x, motion_for_bottom_y, motion_back_bottom_x, motion_back_bottom_y;
if(field_pic && !s->first_field)
xy += wrap/2;
if (s->mb_intra) {
motion_for_top_x = motion_for_top_y = motion_back_top_x = motion_back_top_y =
motion_for_bottom_x = motion_for_bottom_y = motion_back_bottom_x = motion_back_bottom_y = 0;