Add VP9 (vp09) atom support and MP4GetTrackAtomData API#1
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Add support for reading VP9 video tracks in MP4 files: - Add MP4Vp09Atom class that properly parses the vp09 sample entry, including its child atoms (vpcC, btrt, colr, pasp) - Register vp09 in the atom factory and as an expected stsd child Add MP4GetTrackAtomData/MP4FreeTrackAtomData API: - Allows reading the raw data of any track atom by path - Useful for extracting codec configuration boxes (e.g. vpcC, avcC) that don't have dedicated accessor functions - Memory is allocated by the library and freed via MP4FreeTrackAtomData to avoid CRT mismatch issues on Windows
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Add support for reading VP9 video tracks in MP4 files:
Add MP4GetTrackAtomData/MP4FreeTrackAtomData API: