[wp-trac] [WordPress Trac] #63773: Palette-based PNG cause failure attempting AVIF/WebP conversion under GD

[WordPress Trac]

#63773: Palette-based PNG cause failure attempting AVIF/WebP conversion under GD
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 Reporter:  adamsilverstein           |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  Awaiting Review
Component:  Media                     |     Version:  5.8
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by adamsilverstein):

 I added a simple test to convert an indexed PNG to a WebP. As expected, it
 fails.

 Test - https://github.com/WordPress/wordpress-develop/pull/9368/files
 #diff-551c6fb8796176aa11b26a07c677b2b56c97f02d496fc3028cde5c083730d52d

 "Fatal error: Paletter image not supported by webp in /var/www/src/wp-
 includes/class-wp-image-editor.php on line 577"
 (https://github.com/WordPress/wordpress-
 develop/actions/runs/16655700347/job/47140087933?pr=9368)

 Pushing the fix next...

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Ticket URL: <https://core.trac.wordpress.org/ticket/63773#comment:3>
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