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491322d1ba
If an M4A file contains trailing garbage (e.g. an APE tag at the
end of the file), it was considered invalid since [e21640b].
It is important to make sure that atoms which affect modifications
written by TagLib are valid, otherwise the file might be damaged.
However, in cases where invalid atoms do not affect modifications
(which are only done inside the root level "moov" and "moof"
containers), they can be safely ignored.
This commit allows trailing garbage in M4A files as it is also
accepted in MP3, WAV and DSF files.
TagLib
TagLib Audio Metadata Library
TagLib is a library for reading and editing the metadata of several popular audio formats. Currently, it supports both ID3v1 and ID3v2 for MP3 files, Ogg Vorbis comments and ID3 tags in FLAC, MPC, Speex, WavPack, TrueAudio, WAV, AIFF, MP4, APE, and ASF files.
TagLib is distributed under the GNU Lesser General Public License (LGPL) and Mozilla Public License (MPL). Essentially that means that it may be used in proprietary applications, but if changes are made to TagLib they must be contributed back to the project. Please review the licenses if you are considering using TagLib in your project.