1 files changed, 4 insertions, 0 deletions
diff --git a/core/av_opts.c b/core/av_opts.c
index bc2e392c5f..777a1eec5a 100644
--- a/core/av_opts.c
+++ b/core/av_opts.c
@@ -28,6 +28,10 @@
 
 int parse_avopts(void *v, char *str){
     char *start;
+
+    if (!str)
+        return 0;
+
     start= str= strdup(str);
 
     while(str && *str){