Patch provided by Wen Heping via PR#42851.
1.19 - 2010.02.18
* ID3:
* POPM: 'count' is optional; the attribute may not exist. (#33)
* TimeStampTextFrame: Fix a TypeError in unicode comparisons. (#43)
* MakeID3v1: Translate TYER into ID3v1 year if TDRC is not present. (#42)
* mid3v2:
* Allow --delete followed by --frame, and --genre 1 --genre 2. (#37)
* Add --quiet and --verbose flags. (#40)
* moggsplit: --m3u option to write an M3U playlist of the new files. (#39)
* mid3iconv: Fix crash when processing TCML or TIPL frames. (#41)
* VCommentDict: Correctly normalize key names for .keys() iterator. (#45)
* MP3: Correct length calculation for MPEG-2 files. (#46)
* oggflac: Fix typo in docstring. (#53)
* EasyID3: Force UTF-8 encoding. (#54)
* EasyMP4: Fix 'genre' translation. (#56)
1.18 - 2009.10.22
* ASF:
* Distinguish between empty and absent tag values in
ContentDescriptionObjects. (#29)
* mid3iconv:
* Fix a crash when processing empty (invalid) text frames.
* MAJOR API INCOMPATIBILITY!!!!
* EasyID3FileType is now in mutagen.easyid3, not mutagen.id3. This
change was necessary to restore API compatibility with 1.16, as
1.17 accidentally contained a circular import preventing
mutagen.easyid3 from importing by itself. (#32)
1.17 - 2009.10.07
* ID3:
* Support for the iTunes non-standard TSO2 and TSOC frames.
* Attempt to recover from bad SYLT frames. (#2)
* Attempt to recover from faulty extended header flags. (#4, #21)
* Fix a bug in ID3v2.4 footer flag detection, (#5)
* MP4:
* Don't fail or double-encode UTF-8 strings when given a str.
* Don't corrupt 64 bit atom sizes when resizing atoms. (#17)
* EasyID3:
* Extension API for defining new "easy" tags at runtime.
* Support for many, many more tags.
* OggVorbis, OggSpeex: Handle bitrates below 0 as per the spec. (#30)
* EasyMP4: Like EasyID3, but for iTunes MPEG-4 files.
* mutagen.File: New 'easy=True' argument to create new EasyMP3, EasyMP4,
EasyTrueAudio, and EasyID3FileType instances.
1.16 - 2009.06.15
* Website / code repository move.
* Bug Fixes:
* EasyID3: Invalid keys now raise KeyError (and ValueError).
* mutagen.File: .flac files with an ID3 tag will be opened as FLAC.
* MAJOR API INCOMPATIBILITY!!!!
* Python 2.6 has required us to rename the .format attribute of M4A/MP4
cover atoms, because it conflicts with the new str.format method.
It has been renamed .imageformat.
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