avio: make avio_close(NULL) a no-op

Its behaviour in line with ffurl_close(NULL).
13 years ago · e1e146a2d1
parent 546adc1fee
commit e1e146a2d1
1 changed files with 5 additions and 1 deletions
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@ -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);