ffmpeg is wrong to convert id3v2's attributes to utf8
|Reported by:||张广文||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
Summary of the bug:
When ffmpeg produce mp3 music and parse its id3v2 header, ffmpeg convert everything to utf-8.it's very well.
When some windows program create this, they set tag to ISO8859-1, store chinese charactor by gb encoding which is 2 ISO8859-1 charactors.
After ffmpeg convert these charactors to utf-8, we can't recognize thiese.
I suggest developers to add a convert tool of converting gb to utf8, or output with ISO8859-1 just like id3v1's attributes.