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mpeg4videodec: fix GEOV/GEOX fliping

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Fixes Ticket317
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-08-24 00:56:26 +02:00
parent 3941a4f5c2
commit 5cc8b81687
1 changed files with 15 additions and 0 deletions
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15
libavcodec/h263dec.c
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@ -757,6 +757,21 @@ intrax8_decoded:
}
if(s->last_picture_ptr || s->low_delay){
if ( pict->format == AV_PIX_FMT_YUV420P
&& (s->codec_tag == AV_RL32("GEOV") || s->codec_tag == AV_RL32("GEOX"))) {
int x, y, p;
av_frame_make_writable(pict);
for (p=0; p<3; p++) {
int w = -((-pict-> width)>>!!p);
int h = -((-pict->height)>>!!p);
int linesize = pict->linesize[p];
for (y=0; y<(h>>1); y++)
for (x=0; x<w; x++)
FFSWAP(int,
pict->data[p][x + y*linesize],
pict->data[p][x + (h-1-y)*linesize]);
}
}
*got_frame = 1;
}