[FFmpeg-cvslog] r21186 - trunk/libavformat/utils.c

[benoit]

Author: benoit
Date: Wed Jan 13 15:32:48 2010
New Revision: 21186

Log:
Check there is a stream before writing header.
Patch by Tomas H?rdin: $(name) punto hardin chez codemill dot se

Modified:
   trunk/libavformat/utils.c

Modified: trunk/libavformat/utils.c
==============================================================================
--- trunk/libavformat/utils.c	Wed Jan 13 05:35:19 2010	(r21185)
+++ trunk/libavformat/utils.c	Wed Jan 13 15:32:48 2010	(r21186)
@@ -2501,6 +2501,11 @@ int av_write_header(AVFormatContext *s)
     AVStream *st;
 
     // some sanity checks
+    if (s->nb_streams == 0) {
+        av_log(s, AV_LOG_ERROR, "no streams\n");
+        return -1;
+    }
+
     for(i=0;i<s->nb_streams;i++) {
         st = s->streams[i];