Bug 393970

Summary: No mts video thumbnails
Product: [Applications] digikam Reporter: Piotr <piotergmoter>
Component: Thumbs-VideoAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles, metzpinguin
Priority: NOR    
Version First Reported In: 5.9.0   
Target Milestone: ---   
Platform: Appimage   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 6.0.0
Sentry Crash Report:

Description Piotr 2018-05-07 19:44:40 UTC 
Once (I don't remember which version od DK it was) the thumbnails for mts video files were generated ok. But 'recently' (5.5.0 from kubuntu packages) it stopped working. I have tried appimage version 5.9 and the same there. 

The output:
......
digikam.metaengine: Cannot load metadata from file   (Error # 11 :  /mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts: The file contains data of an unknown image type
digikam.general: Trying to load Embedded preview with libraw
digikam.rawengine: Failed to load embedded RAW preview
digikam.general: Trying to load half preview with libraw
digikam.general: Trying to load Embedded preview with Exiv2
digikam.metaengine: Cannot load metadata using Exiv2   (Error # 11 :  /mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts: The file contains data of an unknown image type
digikam.dimg: "/mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts"  : QIMAGE file identified
digikam.dimg.qimage: Can not load " "/mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts" " using DImg::QImageLoader!
digikam.general: mimetype =  ""  ext =  "MTS"
digikam.general: Cannot create thumbnail for  "/mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts"
digikam.general: Thumbnail is null for  "/mnt/domek/foto/2018/2018-05/2018-05-02_19.20.58.mts"

I'm on kubuntu 16.04 where gwenview shows the thumbnails.

Regards
Piotr
Comment 1 Maik Qualmann 2018-05-07 19:51:58 UTC 
The log is not complete, next would be the call of the video thumbnailer. In digiKam-6.0.0 we use a new FFMpeg thumbnailer. Please test the pre-release AppImage from here:

https://files.kde.org/digikam/

Maik
Comment 2 Piotr 2018-05-07 22:01:33 UTC 
Tested and it works. So DK 6.x generates thumbs from mts files. Strange, that the latest 5.x versions of DK have regression in that area.
P.