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avcodec/mpegvideo: Fix block height for lowres 3 interlaced blocks 

Fixes green trash
Fixes part of Ticket2535

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-08 01:17:45 +02:00
parent bc0cbaca62
commit bca50e5cd5
1 changed files with 4 additions and 3 deletions
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7
libavcodec/mpegvideo.c
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@ -2349,11 +2349,12 @@ static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
uvsx = (uvsx << 2) >> lowres;
uvsy = (uvsy << 2) >> lowres;
if (h >> s->chroma_y_shift) {
pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy);
pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy);
if (hc) {
pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
}
}
// FIXME h261 lowres loop filter