Eyevinn / mp4ff / 28442922450

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github

feat: add vexu Apple spatial video metadata boxes

Add the Video Extended Usage box (vexu) family used by Apple spatial/stereo
video (MV-HEVC): VexuBox with EyesBox (eyes), CamsBox (cams) and ProjBox
(proj) containers, and the StriBox (stri), HeroBox (hero), BlinBox (blin),
PrjiBox (prji) and HfovBox (hfov) leaf boxes. Adds a CreateVexuBox helper,
exported stereo-view flag constants, and VisualSampleEntryBox.Vexu/.Hfov
child references.

Box layouts were verified against Apple's "QuickTime and ISO Base Media File
Formats and Spatial and Immersive Media" format additions document, including
the FullBox-vs-Box distinction for each box and the stri flag bit positions.
Unknown vexu child boxes (e.g. cmfy, pack, lnsc) are preserved via the generic
container decode and round-trip unchanged.

351 of 401 new or added lines in 4 files covered. (87.53%)

21201 of 25520 relevant lines covered (83.08%)

0.92 hits per line