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1.4.5: XnViewMP hangs when saving TIF with LZW+Predictor

Posted: Sun May 28, 2023 1:17 pm
by mpy
XnView MP Linux
Version 1.4.5 64bits (May 10 2023)
Libformat version 7.143

OS: Linux / Arch


When using the LZW+Predictor method for saving color TIF images, the saving hangs XnViewMP and corrupts the saved file. Other methods (LZW, ZIP, ...) work fine.

Effect: Program hangs, files are corrupted

To reproduce:
1. Settings -> Formats -> Write -> TIFF: Set "compression for color picture" to "LZW + Predictor"
2. Open an arbitrary (color) image
3. Save this image in TIF Format

Actual behaviour (bug): Saving dialog appears, but does never complete, program hangs until killed. Resulting TIF-File is corrupt; if you use "Save" to update an existing TIF file this file gets destroyed :bug:

Expected behaviour: Saving is done correctly.

Re: 1.4.5: XnViewMP hangs when saving TIF with LZW+Predictor

Posted: Fri Jun 02, 2023 3:23 pm
by xnview
:bugconfirmed: Thanks to your detailed description I can reproduce the problem.

Re: 1.4.5: XnViewMP hangs when saving TIF with LZW+Predictor

Posted: Fri Jun 16, 2023 4:12 pm
by xnview
This problem is supposed to be fixed in XnView MP 1.5.0 beta. Please check and confirm the bug fix here.

Re: 1.4.5: XnViewMP hangs when saving TIF with LZW+Predictor

Posted: Sat Jun 17, 2023 2:07 pm
by mpy
Thanks, I tested the Windows version. Bug fixed :D
I'll test the Linux version (where I originally observed the bug) as soon it is available.

Re: 1.4.5: XnViewMP hangs when saving TIF with LZW+Predictor

Posted: Tue Jul 11, 2023 5:09 pm
by mpy
I can confirm that this bug is also fixed in the Linux version 1.5.0, thanks :D