AOMediaCodec / av1-avif

AV1 Image File Format Specification - ISO-BMFF/HEIF derivative
https://aomediacodec.github.io/av1-avif/
BSD 2-Clause "Simplified" License
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testFiles/Netflix/avis/alpha_video.avif has incorrect `auxl` box #217

Closed vigneshvg closed 3 weeks ago

vigneshvg commented 11 months ago

The item reference entry inside the auxl box must contain item_id of the item to which is it auxiliary to (which is 4). The current value is 0 which is incorrect (and in fact disallowed by the spec since item_id can never be 0.

To correct the file, byte number 259 (0-index) must be updated to 0x04 instead of 0x00.

leo-barnes commented 3 weeks ago

This was fixed by #201