Original commit message from CVS: Based on patch by: Tommi Myöhänen <ext-tommi.myohanen nokia com> * gst-libs/gst/tag/id3v2frames.c: (parse_comment_frame): Make sure the ISO 639-X language code in ID3v2 COMM frames is actually valid UTF-8 (or rather: ASCII), so we don't end up with non-UTF8 strings in tags if there's garbage in the language field. Also make sure the language code is always lower case. Fixes: #508291.