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Code Issues Releases Activity

dvdec: Set top_field_first from FS flag

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Tomas Härdin 2012-10-15 16:24:39 +02:00 committed by Michael Niedermayer
parent 2b4bbd12c2
commit 7b383bd9d7
1 changed files with 2 additions and 1 deletions
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libavcodec/dvdec.c
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@ -343,12 +343,13 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
s->picture.interlaced_frame = 1;
s->picture.top_field_first = 0;
/* Determine the codec's sample_aspect ratio from the packet */
/* Determine the codec's sample_aspect ratio and field order from the packet */
vsc_pack = buf + 80*5 + 48 + 5;
if ( *vsc_pack == dv_video_control ) {
apt = buf[4] & 0x07;
is16_9 = (vsc_pack[2] & 0x07) == 0x02 || (!apt && (vsc_pack[2] & 0x07) == 0x07);
avctx->sample_aspect_ratio = s->sys->sar[is16_9];
s->picture.top_field_first = !(vsc_pack[3] & 0x40);
}
s->buf = buf;