XnViewMP 1.3.1 - New batch conversion - single core usage only!

[masterjp]

I often use the batch conversion dialog to convert my jpeg files to webp.

My favorite settings are:

- Webp file format with 82% quality
- Resize longest side to 2560 pixels
- create directories/paths
- skip already existing files

XnView1_3_1.png

The latest version 1.3.1 of XnViewMP has a new behaviour during conversions and a bug in the multi cpu core usage!

If you convert files to a destination drive or folder and it is empty (!), the conversion will use my multi cpu core settings (e.g. 4 cpu cores) for conversion!

If I start a conversion and some files already exists in the destination folder, the conversion process will work the whole time in single core speed!

In previous versions of XnViewMP I always was able to use the full speed (e.g. 4 cpu cores) to convert files.
Furthermore I could detect a new conversion status message behaviour than in version 1.3 and older.

If the destination folder does not have any files, the status messages will appear after every converted file!
If I convert files to a destination folder with existing files, the status messages will appear after the whole conversion!

I think here is an error in the new conversion procedure.

[xnview]

strange, nothing has changed here between 1.3.0 & 1.3.1, only logs. And i can't reproduce...

[masterjp]

I test it in the evening again and try to make a video or check the conversion time again.