Check environment variables GST_ID3V2_TAG_ENCODING,

Check environment variables GST_ID3V2_TAG_ENCODING,

Original commit message from CVS:
Check environment variables GST_ID3V2_TAG_ENCODING,
GST_ID3_TAG_ENCODING and GST_TAG_ENCODING for a colon-separated
list of character encodings to force interpretation of non-unicode
strings stored in an ID3v2 tag to a particular encoding. If none
is specified, try to use current locale's encoding, then fall back
to ISO-8859-1 (which will always succeed). (Resolves #149274)

Check environment variables GST_ID3V1_TAG_ENCODING,
GST_ID3_TAG_ENCODING and GST_TAG_ENCODING for a colon-separated
list of character encodings to use in case a string encountered
in an ID3v1 tag is not valid UTF-8 already. If no encoding is
specified, try to use the current locale's encoding, then fall
back to ISO-8859-1 (which will always succeed).