asfdec: do not export empty metadata

Signed-off-by: Anton Khirnov <anton@khirnov.net>
10 years ago · 78491fe8cf
parent 3e853ff7ac
commit 78491fe8cf
1 changed files with 4 additions and 2 deletions
--- 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;
 }