[FFmpeg-cvslog] asfdec: do not export empty metadata

[Alexandra Hájková]

ffmpeg | branch: master | Alexandra Hájková <alexandra.khirnova at gmail.com> | Mon Jul 27 19:42:15 2015 +0200| [78491fe8cfed83d2aead95dafe26f0d3f999e961] | committer: Anton Khirnov

asfdec: do not export empty metadata

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=78491fe8cfed83d2aead95dafe26f0d3f999e961
---

 libavformat/asfdec.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 72c5916..790102b 100644
--- 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;
 }