[wp-trac] [WordPress Trac] #24380: Missing Compression Parameter in WP_Image_Editor_GD

[WordPress Trac]

#24380: Missing Compression Parameter in WP_Image_Editor_GD
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 Reporter:  MuViMoTV                  |       Owner:  wonderboymusic
     Type:  enhancement               |      Status:  reopened
 Priority:  normal                    |   Milestone:  4.0
Component:  Media                     |     Version:  3.5.1
 Severity:  normal                    |  Resolution:
 Keywords:  2nd-opinion dev-feedback  |     Focuses:
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Comment (by mikemanger):

 Replying to [comment:28 ericlewis]:
 > Since actual quality has nothing to do with the operation at hand, would
 it be useful to create a PNG-specific class property like
 `compression_level_png` to use here instead?

 Yes, adding a separate property should make the documentation clearer. It
 could be more specific like `[image_]zlib_compression_level`, but this
 might be just needless abstraction.. just wondering what happens if
 another class gets added with a completely different scale.

 If the property goes from 0-9, this would need converting to a 1-100 scale
 for the [http://www.imagemagick.org/script/command-line-
 options.php#quality ImageMagick class].

 Another option could be to add a filter (attachment:24380.3.patch) or just
 make it obvious what 'quality' means for different image formats in the
 `wp_editor_set_quality` filter documentation.

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Ticket URL: <https://core.trac.wordpress.org/ticket/24380#comment:29>
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