Bug #91855

Image with crop set is JPEG compressed twice

Added by Christian Toffolo almost 2 years ago. Updated 6 months ago.

Status:
Under Review
Priority:
Should have
Assignee:
-
Category:
Image Generation / GIFBUILDER
Target version:
-
Start date:
2020-07-23
Due date:
% Done:

0%

Estimated time:
TYPO3 Version:
10
PHP Version:
7.2
Tags:
Complexity:
Is Regression:
Sprint Focus:

Description

Image with crop set is JPEG compressed twice so it loses quality 2 times based on jpg_quality setting.

1st compress when crop is executed: https://github.com/TYPO3/TYPO3.CMS/blob/5275e76e4ae7e00a0bce59b8d458e547e427b92b/typo3/sysext/core/Classes/Resource/Processing/LocalCropScaleMaskHelper.php#L87
2nd compress when scaling is executed:
https://github.com/TYPO3/TYPO3.CMS/blob/5275e76e4ae7e00a0bce59b8d458e547e427b92b/typo3/sysext/core/Classes/Resource/Processing/LocalCropScaleMaskHelper.php#L118

A solution could be to use a $jpegQuality=100 the first time it's compressed if it will be compressed a second time (using the configured jpg_quality).


Files

5y1nX.png (248 KB) 5y1nX.png Oleg Karun, 2021-01-12 10:10

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Related to TYPO3 Core - Bug #81796: LocalCropScaleMaskHelper does not respect quality settingClosed2017-07-05

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