From 855127bc920ea7f626c8ab22654a83d510732469 Mon Sep 17 00:00:00 2001 From: Fabrice Bellard Date: Mon, 16 Jun 2003 14:09:18 +0000 Subject: [PATCH] fixed segfault if sequence header has not been found before slice decoding Originally committed as revision 1964 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mpeg12.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index c31a711c7c..c68f8d8a05 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -1990,6 +1990,9 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict) Mpeg1Context *s1 = avctx->priv_data; MpegEncContext *s = &s1->mpeg_enc_ctx; + if (!s1->mpeg_enc_ctx_allocated) + return 0; + /* end of slice reached */ if (/*s->mb_y<mb_height &&*/ !s->first_field) { /* end of image */