[wp-trac] [WordPress Trac] #21668: WordPress still does not save jpeg as progressive jpeg

[WordPress Trac]

#21668: WordPress still does not save jpeg as progressive jpeg
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 Reporter:  _ck_                     |       Owner:
     Type:  enhancement              |      Status:  new
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  Media                    |     Version:  3.4.1
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |
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Comment (by pmeenan):

 When testing, you can validate that progressive JPEGs are created
 [http://www.webpagetest.org/jpeginfo/ here].

 I tested the patch on an Ubuntu 12.04 system with php 5.3.10 and
 imagemagick 6.6.9-7 (both the latest from the standard apt sources) and
 validated both the GD and imagemagick code paths.  The GD code path was
 tested before installing imagemagick and logging was added to both output
 paths to validate that the writes were done through the expected paths.
 Progressive JPEGs were correctly created in both cases.

 [http://www.webpagetest.org/jpeginfo/jpeginfo.php?url=http%3A%2F%2Fwp.patrickmeenan.com
 %2Fwp-content%2Fuploads%2F2013%2F06%2Fphoto-300x225.jpg GD]
 [http://www.webpagetest.org/jpeginfo/jpeginfo.php?url=http%3A%2F%2Fwp.patrickmeenan.com
 %2Fwp-content%2Fuploads%2F2013%2F06%2Fdroids-300x225.jpg imagemagick]

 These were photos that I uploaded to my [http://wp.patrickmeenan.com/ test
 Wordpress site] with the patch (and logging) applied.

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Ticket URL: <http://core.trac.wordpress.org/ticket/21668#comment:16>
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