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Skip non intra frames that have no reference frames.

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Originally committed as revision 18395 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-04-09 20:13:35 +00:00
parent 440882f7be
commit 69409ccb80
1 changed files with 6 additions and 1 deletions
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7
libavcodec/snow.c
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@ -4145,6 +4145,10 @@ static int frame_start(SnowContext *s){
if(i && s->last_picture[i-1].key_frame) if(i && s->last_picture[i-1].key_frame)
break; break;
s->ref_frames= i; s->ref_frames= i;
if(s->ref_frames==0){
av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n");
return -1;
}
} }
s->current_picture.reference= 1; s->current_picture.reference= 1;
@ -4520,7 +4524,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
alloc_blocks(s); alloc_blocks(s);
frame_start(s); if(frame_start(s) < 0)
return -1;
//keyframe flag duplication mess FIXME //keyframe flag duplication mess FIXME
if(avctx->debug&FF_DEBUG_PICT_INFO) if(avctx->debug&FF_DEBUG_PICT_INFO)
av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog);