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Mpeg2 16x8 Patch by ("Ivan Kalvachev" <ivan at cacad dot com>)

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Originally committed as revision 2006 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ivan Kalvachev 2003-07-03 23:29:00 +00:00 committed by Michael Niedermayer
parent 17705a3420
commit d55e93e48b
1 changed files with 34 additions and 0 deletions
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34
libavcodec/mpegvideo.c
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@ -2189,6 +2189,40 @@ static inline void MPV_motion(MpegEncContext *s,
0, pix_op, 0, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16); s->mv[dir][0][0], s->mv[dir][0][1], 16);
} }
break;
case MV_TYPE_16X8:{
int offset;
uint8_t ** ref2picture;
if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
ref2picture= ref_picture;
offset= s->field_select[dir][0] ? s->linesize : 0;
}else{
ref2picture= s->current_picture.data;
offset= s->field_select[dir][0] ? s->linesize : -s->linesize;
}
mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
ref2picture, offset,
0, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 8);
if(s->picture_structure == s->field_select[dir][1] + 1 || s->pict_type == B_TYPE || s->first_field){
ref2picture= ref_picture;
offset= s->field_select[dir][1] ? s->linesize : 0;
}else{
ref2picture= s->current_picture.data;
offset= s->field_select[dir][1] ? s->linesize : -s->linesize;
}
// I know it is ugly but this is the only way to fool emu_edge without rewrite mpeg_motion
mpeg_motion(s, dest_y+16*s->linesize, dest_cb+8*s->uvlinesize, dest_cr+8*s->uvlinesize,
0,
ref2picture, offset,
0, pix_op,
s->mv[dir][1][0], s->mv[dir][1][1]+16, 8);
}
break; break;
case MV_TYPE_DMV: case MV_TYPE_DMV:
{ {