Extend fuzzing harness to add more reachability

[DavidKorczynski]

Goal is to expand code coverage

Current code coverage is available at: https://storage.googleapis.com/oss-fuzz-coverage/openjph/reports/20260326/linux/src/report.html

[palemieux]

Could we use the opportunity to add a fuzzing harness for encoding?

[DavidKorczynski]

yeah, ill be happy to do that. Same PR or a new one?

[palemieux]

Same PR me thinks.

…

On Thu, Mar 26, 2026 at 16:10 DavidKorczynski ***@***.***> wrote: *DavidKorczynski* left a comment (aous72/OpenJPH#264) <#264?email_source=notifications&email_token=ABFFJNXQ4VPIRZAFJCZ5ABT4SW2GZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJTHA4TEMJRGA4KM4TFMFZW63VHMNXW23LFNZ2KKZLWMVXHJNLQOJPWG33NNVSW45C7N5YGK3S7MNWGSY3L#issuecomment-4138921108> yeah, ill be happy to do that. Same PR or a new one? — Reply to this email directly, view it on GitHub <#264?email_source=notifications&email_token=ABFFJNXQ4VPIRZAFJCZ5ABT4SW2GZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJTHA4TEMJRGA4KM4TFMFZW63VHMNXW23LFNZ2KKZLWMVXHJNLQOJPWG33NNVSW45C7N5YGK3S7MNWGSY3L#issuecomment-4138921108>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABFFJNS5UOD56X57LXO74CT4SW2GZAVCNFSM6AAAAACXBBPLSSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCMZYHEZDCMJQHA> . You are receiving this because you commented.Message ID: ***@***.***>

[aous72]

Dear @DavidKorczynski and @palemieux,

Thank you for this very useful PR.
Sorry for being too busy with another matter.
I just need to confirm one thing with you guys regarding planar settings -- you may have taken care of this, but I am just checking.
If we need to employ colour transform, we cannot use planar.
If we do need colour transform, planar is optional.

I am happy to merge this PR if the planar option is setup correctly.

Thank you again.

Kind regards,
Aous.

[DavidKorczynski]

If we need to employ colour transform, we cannot use planar.

Yes: https://github.com/aous72/OpenJPH/pull/264/changes#diff-0d532342cc7ce994ce6a641390e660dd11c72b3dd85244a3f7a3941c592e11deR75

  if (color_transform) planar = false;