From 9022797ba2acfeb71191b77382e41ef5b6b910cc Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 17 Jul 2002 17:50:42 +0000 Subject: [PATCH] fixing NULL reference frame with dr1 Originally committed as revision 775 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mpegvideo.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 9f2cd49b06..73c83275c6 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -637,6 +637,12 @@ void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) for(i=0;i<3;i++) { if(avctx->flags&CODEC_FLAG_DR1) s->aux_picture[i]= avctx->dr_buffer[i]; + + //FIXME the following should never be needed, the decoder should drop b frames if no reference is available + if(s->next_picture[i]==NULL) + s->next_picture[i]= s->aux_picture[i]; + if(s->last_picture[i]==NULL) + s->last_picture[i]= s->next_picture[i]; s->current_picture[i] = s->aux_picture[i]; }