Bug 428063

Summary:	Regression: lost ability to choose jpeg quality while re-saving
Product:	[Applications] gwenview	Reporter:	pveax <pveax>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	nate
Priority:	NOR
Version First Reported In:	20.08.2
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	"original"/initial file: the file which will be re-saved by `gwenview` q60_by_gwenview__after_working_re-save_q70_by_kolourpaint.jpg

Description pveax 2020-10-21 13:58:51 UTC

Hi!
Thank you for the product!

SUMMARY
Regression: lost ability to choose jpeg quality while saving.

STEPS TO REPRODUCE
1. open a jpeg file (my example of a file attached)
2. click Menu `File` -> `Save As...`
3. choose `jpeg` format and any quality (tested 100%, 99, 98, 95, 90, 85, 70, 60)

OBSERVED RESULT
The file size is the same as origin file, so looks like no re-save/re-compression was made.

EXPECTED RESULT
The file size should be different from the origin file, cause re-save/re-compression should be made.


SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 5.20.1
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1
Kernel Version: 5.8.16-2-MANJARO
OS Type: 64-bit

ADDITIONAL INFORMATION
No matter of jpeg quality choice the file size is the same as origin.

Not absolutely sure then it start to happens.

Thank you!

Comment 1 pveax 2020-10-21 14:01:13 UTC

Created attachment 132609 [details]
"original"/initial file: the file which will be re-saved by `gwenview`

Comment 2 pveax 2020-10-21 14:03:08 UTC

Created attachment 132610 [details]
q60_by_gwenview__after_working_re-save_q70_by_kolourpaint.jpg

Comment 3 pveax 2020-10-21 14:06:32 UTC

Initial file taken from camera app and saved with `70` jpeg quality via `kolourpaint` app: re-encoding works.

Second file is saved with q60 via `gwenview` and has the same size, which means that output could be simple copy of input, no matter of encoding settings in `Save As` dialog window.

Comment 4 Nate Graham 2020-10-26 17:35:11 UTC


*** This bug has been marked as a duplicate of bug 423414 ***