asfdec: do not export empty metadata

Signed-off-by: Anton Khirnov <anton@khirnov.net>

asfdec: do not export empty metadata
Signed-off-by: Anton Khirnov <anton@khirnov.net>
78491fe8 · Alexandra Hájková · Anton Khirnov · 3e853ff7 · 78491fe8
Commit 78491fe8 authored Jul 27, 2015 by Alexandra Hájková Committed by Anton Khirnov Jul 31, 2015
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Showing with 4 additions and 2 deletions

asfdec.c libavformat/asfdec.c +4 -2

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--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -256,8 +256,10 @@ static int asf_read_metadata(AVFormatContext *s, const char *title, uint16_t len
    AVIOContext *pb = s->pb;

    avio_get_str16le(pb, len, ch, buflen);
-    if (av_dict_set(&s->metadata, title, ch, 0) < 0)
-        av_log(s, AV_LOG_WARNING, "av_dict_set failed.\n");
+    if (ch[0]) {
+        if (av_dict_set(&s->metadata, title, ch, 0) < 0)
+            av_log(s, AV_LOG_WARNING, "av_dict_set failed.\n");
+    }

    return 0;
 }