Merge commit '92798260'

* commit '92798260':
  id3v2enc: use a case-insensitive comparison for APIC picture type
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/id3v2enc.c

@@ -283,7 +283,7 @@ int ff_id3v2_write_apic(AVFormatContext *s, ID3v2EncContext *id3, AVPacket *pkt)
     /* get the picture type */
     e = av_dict_get(st->metadata, "comment", NULL, 0);
     for (i = 0; e && i < FF_ARRAY_ELEMS(ff_id3v2_picture_types); i++) {
-        if (strstr(ff_id3v2_picture_types[i], e->value) == ff_id3v2_picture_types[i]) {
+        if (!av_strcasecmp(e->value, ff_id3v2_picture_types[i])) {
             type = i;
             break;
         }