@mukeshpanchal27 - note that it looks like tests broke in 49f4278 (#4612). those variables were used on the next line where the line return compact( 'width', 'height', 'type' ); uses a weird syntax to reference them.

Anyway, that function was poorly structured and had an inconsistent return structure; it already had a default return value set later in the function so I moved that up and return it when the mime type isn't avif in b492dbf (#4612)

Thanks, @adamsilverstein, for the update. I've left some nit-pick feedback and suggestions. Other than that, looks good to me.

Thanks for the careful review and suggestions, I have accepted your suggestions.

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Props: adamsilverstein, mukesh27, swissspidy.

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Co-authored-by: adamsilverstein <adamsilverstein@git.wordpress.org>
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merged in https://core.trac.wordpress.org/changeset/57524