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set v_edge_pos correctly for field picture mpeg2

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Originally committed as revision 6782 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-10-24 07:33:39 +00:00
parent 4884b9e50d
commit 5d48f0cb05
1 changed files with 4 additions and 2 deletions
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6
libavcodec/mpeg12.c
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@ -2390,10 +2390,12 @@ static void mpeg_decode_picture_coding_extension(MpegEncContext *s)
s->chroma_420_type = get_bits1(&s->gb);
s->progressive_frame = get_bits1(&s->gb);
if(s->picture_structure == PICT_FRAME)
if(s->picture_structure == PICT_FRAME){
s->first_field=0;
else{
s->v_edge_pos= 16*s->mb_height;
}else{
s->first_field ^= 1;
s->v_edge_pos= 8*s->mb_height;
memset(s->mbskip_table, 0, s->mb_stride*s->mb_height);
}