diff options
| author | anatoly <anatoly.nenashev at> | 2011-02-22 12:04:50 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-05-12 00:10:56 +0400 |
| commit | 99e07a4453732058df90885f80b3db3b4f37cb3c (patch) | |
| tree | 251b5fabe7bccd90e73388770a78eb8b456a2e47 /libavcodec/mpegvideo.c | |
| parent | a18eff49c03622c628913d0199dfa61e5c29f0d6 (diff) | |
Fix crash of interlaced MPEG2 decoding
Diffstat (limited to 'libavcodec/mpegvideo.c')
| -rw-r--r-- | libavcodec/mpegvideo.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 50c99f4a82..6bb35f9f39 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -1094,8 +1094,13 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) s->pict_type, s->dropable);*/ if(s->codec_id != CODEC_ID_H264){ - if((s->last_picture_ptr==NULL || s->last_picture_ptr->data[0]==NULL) && s->pict_type!=AV_PICTURE_TYPE_I){ - av_log(avctx, AV_LOG_ERROR, "warning: first frame is no keyframe\n"); + if((s->last_picture_ptr==NULL || s->last_picture_ptr->data[0]==NULL) && + (s->pict_type!=AV_PICTURE_TYPE_I || s->picture_structure != PICT_FRAME)){ + if (s->pict_type != AV_PICTURE_TYPE_I) + av_log(avctx, AV_LOG_ERROR, "warning: first frame is no keyframe\n"); + else if (s->picture_structure != PICT_FRAME) + av_log(avctx, AV_LOG_INFO, "allocate dummy last picture for field based first keyframe\n"); + /* Allocate a dummy frame */ i= ff_find_unused_picture(s, 0); s->last_picture_ptr= &s->picture[i]; |