@@ -756,8 +756,12 @@ int avio_open2(AVIOContext **s, const char *filename, int flags,

 int avio_close(AVIOContext *s)

 {

-    URLContext *h = s->opaque;

+    URLContext *h;

+

+    if (!s)

+        return 0;

+    h = s->opaque;

     av_free(s->buffer);

     av_free(s);

     return ffurl_close(h);