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05c2c8671e
Six new tests exercise corners of the chapter implementation that the orphaned-mdat fix did not reach: testQTChapterListUnicodeTitles / testChapterListUnicodeTitles -- Round-trip Japanese, German (umlaut), and Russian titles through the QT text-sample serialisation and the Nero length-prefixed UTF-8 path respectively. These are separate paths in the code and benefit from separate coverage. testQTChapterListEmptyTitleStripped -- A multi-chapter list whose first entry is empty at t=0 matches the QT dummy-marker pattern; read() must drop it. Test documents the rule so a regression is immediately detectable. testQTChapterListSingleEmptyTitleNotStripped -- The stripping rule only applies when size > 1. A single empty-title chapter at t=0 is valid and must be preserved. testNeroAndQTChaptersAreIndependent -- Both formats can coexist; removing one leaves the other intact. Validates the lazy saveChaptersIfModified contract in mp4file.cpp. testNeroChaptersAloneWhenNoQT -- Writing one format must not create atoms for the other. All 47 MP4 tests pass.
TagLib
TagLib Audio Metadata Library
TagLib is a library for reading and editing the metadata of several popular audio formats. Currently, it supports various metadata containers such as ID3v1, ID3v2 and Vorbis comments for MP3, MP4, AAC, Ogg, Opus, FLAC, Speex, APE, MPC, WavPack, WAV, AIFF, TrueAudio, Matroska, WebM, ASF, WMA, DSF, DFF and tracker (MOD, XM, S3M, IT) 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.