[wp-trac] [WordPress Trac] #48202: Media: rotation of JPEG files may fail

[WordPress Trac]

#48202: Media: rotation of JPEG files may fail
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 Reporter:  azaozz                       |       Owner:  (none)
     Type:  defect (bug)                 |      Status:  new
 Priority:  high                         |   Milestone:  5.3
Component:  Media                        |     Version:
 Severity:  normal                       |  Resolution:
 Keywords:  has-patch reporter-feedback  |     Focuses:
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Changes (by azaozz):

 * keywords:   => has-patch reporter-feedback


Comment:

 In 48202.diff:
 - Use `imagecolorallocate()` instead of `imagecolorallocatealpha()` when
 rotating JPEGs.
 - Do not set `imagealphablending()` and `imagesavealpha()` for JPEGs.

 Testing here with PHP 7.3, this patch doesn't make any difference. Rotated
 PNGs are tansparent, GIFs are ...not really. JPEGs work as expected.

 @tmatsuur can you test (the soonest -- the better) if that fixes it for
 you?

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Ticket URL: <https://core.trac.wordpress.org/ticket/48202#comment:3>
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