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AOMediaCodec / av1-avif

AV1 Image File Format Specification - ISO-BMFF/HEIF derivative
https://aomediacodec.github.io/av1-avif/
BSD 2-Clause "Simplified" License
463 stars 40 forks source link

Broken links for pixi reference #97

Closed kornelski closed 3 years ago

kornelski commented 4 years ago

The links for boxes:

colr, pixi or pasp,

Link to ISO homepage, not any spec.

cconcolato commented 4 years ago

Thanks. We'll try to fix it. In the meantime, note that the Terms defined by reference section indicates in which spec they are defined.

kornelski commented 4 years ago

Could you quote more of the other specs? ISO expects me to buy the HEIF spec, and get it on paper. From reverse-engineering other implementations it seems pixi just just image depth. It's not worth 178 swiss francs to learn that :)

cconcolato commented 4 years ago

The HEIF spec is available for free. Don't ask me why ISO presents it this way, but they add the following at the top of the pages of freely available specs:

The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site

If you follow the "downloaded" link, you'll get the spec: https://standards.iso.org/ittf/PubliclyAvailableStandards/c066067_ISO_IEC_23008-12_2017.zip

kornelski commented 4 years ago

Wow, that's great. Thank you for the tip.

wantehchang commented 4 years ago

Kornel: Among the ISO standards that the AVIF spec refers to, only one (MIAF) is not publicly available.