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In dv decoder, set sample aspect aspect ratio, fix issue #1612

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Originally committed as revision 25232 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2010-09-27 21:31:29 +00:00
parent 348a3237cc
commit 2a5db1aa58
1 changed files with 10 additions and 0 deletions
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10
libavcodec/dv.c
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@ -1081,6 +1081,8 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
DVVideoContext *s = avctx->priv_data;
const uint8_t* vsc_pack;
int apt, is16_9;
s->sys = ff_dv_frame_profile(s->sys, buf, buf_size);
if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys)) {
@ -1114,6 +1116,14 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->picture;
/* Determine the codec's sample_aspect ratio from the packet */
vsc_pack = buf + 80*5 + 48 + 5;
if ( *vsc_pack == dv_video_control ) {
apt = buf[4] & 0x07;
is16_9 = (vsc_pack && ((vsc_pack[2] & 0x07) == 0x02 || (!apt && (vsc_pack[2] & 0x07) == 0x07)));
avctx->sample_aspect_ratio = s->sys->sar[is16_9];
}
return s->sys->frame_size;
}
#endif /* CONFIG_DVVIDEO_DECODER */