segfault fix

Originally committed as revision 4079 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago · d46db490b1
parent 3ce16b30f7
commit d46db490b1
1 changed files with 1 additions and 1 deletions
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@ -451,7 +451,7 @@ resync:
                    index= av_index_search_timestamp(st, pkt->dts, 0);
                    e= &st->index_entries[index];
                    
-                    if(e->timestamp == ast->frame_offset){
+                    if(index >= 0 && e->timestamp == ast->frame_offset){
                        if (e->flags & AVINDEX_KEYFRAME)
                            pkt->flags |= PKT_FLAG_KEY;
                    }