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Check `full_range_flag` on alpha auxiliary images

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
rust
Domain
backend

Research direction

No file or test is named in the issue. Start by locating the parser's handling of alpha auxiliary image items and associated colr/CICP properties, then inspect existing validation tests. Done means the parser checks the stated full_range_flag requirement for these items and tests the relevant valid and invalid cases.

Written by the indexing model from the issue text.

Description

avif compliance

MIAF ISO/IEC 23000-22:2019/Amd. 2:2021 § 7.3.5.2 adds the following requirement:

— Given the semantics above, if a CICP colour property is associated with an alpha auxiliary image item, full_range_flag shall be set to 1.

Currently we don't check for any colr properties associated with alpha auxiliary image items

Dominant language
Rust
Stars
448
Forks
72
Avg merge
20d 3h
Merged PRs (30d)
1

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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