[FFmpeg-devel] [PATCH 1/2] id3v2: do not export APIC description if empty

[wm4]

APIC tags always have a description. Tag writers obviously leave it
empty if there is no description. In this case, libavformat would export
"" as title. Do not set the title instead.
---
Somewhat questionable. Take it or leave it.
---
 libavformat/id3v2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c
index a8273e2..1c57dd9 100644
--- a/libavformat/id3v2.c
+++ b/libavformat/id3v2.c
@@ -1082,7 +1082,8 @@ int ff_id3v2_parse_apic(AVFormatContext *s, ID3v2ExtraMeta **extra_meta)
         st->disposition      |= AV_DISPOSITION_ATTACHED_PIC;
         st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
         st->codec->codec_id   = apic->id;
-        av_dict_set(&st->metadata, "title",   apic->description, 0);
+        if (apic->description[0])
+            av_dict_set(&st->metadata, "title", apic->description, 0);
         av_dict_set(&st->metadata, "comment", apic->type, 0);
 
         av_init_packet(&st->attached_pic);
-- 
2.1.4