avio: make avio_close(NULL) a no-op

Its behaviour in line with ffurl_close(NULL).

avio: make avio_close(NULL) a no-op
Its behaviour in line with ffurl_close(NULL).
e1e146a2 · Luca Barbato · 546adc1f · e1e146a2
Commit e1e146a2 authored Apr 27, 2012 by Luca Barbato
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aviobuf.c libavformat/aviobuf.c +5 -1

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--- 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);