0.98.0: Video thumbnails not working

[thany2]

XnView: MP 0.98.0 - 64 bit
OS: Windows 10 20H2 64bit

In the file list pane, video thumbnails are not being generated. In the settings it's set to generate 4 images, just like for folders. Switching that to 1 image does not solve it.

Effect: All I see it the system icon in place of the thumbnail. Same icon as in details view, but bigger.

To reproduce:
No idea, mate. Just go to a folder with videos and be in thumbnail view?

Actual behaviour (bug): No thumbnails for video

Expected behaviour: Opposite of actual behaviour.

Additional context:
This is the case for at least MP4 and WEBM files. I have not tested any other videos, as I don't have other files handy right now.
It might be helpful to know that this issue existed on 0.97.1 as well (at least - I can't be sure for older versions). I updated just to see if it happens to have been fixed.

[xnview]

which settings do you have in filelist>Custom filter?

[thany2]

which settings do you have in filelist>Custom filter?

Ah, and there it was. Thumbnails were disabled there.
Honestly, I do find that a weird place to enable/disable thumbnails, since there's a dedicated "thumbnails" section in the settings...

/edit
Oh, it crashes in some folders with those thumbnails enabled. No error message or anything, just *poof* and XnView is gone.
Even though all videos play just fine.
This might be why I disabled it, until it's got the bugs ironed out.

[roti]

Same problem here.

OS: Manjaro
version:
XnView MP Linux
Version 0.98.0 64bits (Dec 11 2020)
Libformat version 7.64

thumbnail disabled, preview disabled

The first video metadata read ok, but for the second, it crashed:

Code: Select all

############################################ InfoPropertiesView

Create Tree : Fjl
Create Tree : Vide
Create Tree : Audi
######### CategoryModel :: checkAndSave()
### ThumbLoaderThread :: setFirstItemToLoad
 ** start condition wake one 3
### ThumbLoaderThread :: setFirstItemToLoad ok
######### CategoryModel :: checkAndSave()
######ThumbLoaderThread :: forever 2 : 1deba80 
BitmapLoadThread :: stop()
CHECK <0> 
######ThumbLoaderThread :: forever : 1deba80 
 ** start condition wait


############################################ InfoPropertiesView

Create Tree : Fjl

Thread 1 "XnView" received signal SIGSEGVEND, Segmentation fault.
0x00007ffff6547df7 in __lll_lock_elision () from /usr/lib/libpthread.so.0

When thumbnail and preview enabled, the thumbnails are generated, but at preview, the program craches with the same stack.

Code: Select all

######### CategoryModel :: checkAndSave()
MyView::set LOAD FULL myVideo.avi 
BitmapLoadThread :: stop()
## MyView::onLoaded <myVideo.avi> <myVideo.avi> <myVideo.avi> (0) 
## MyView::onLoaded ok 
MyView::change myVideo.avi 
OPEN player myVideo.avi
OpenGLWidget
QGLWidget2
Widget
XVideo
X11
QtAV 1.13.0(Jul 11 2019, 03:26:54)
Multimedia framework base on Qt and FFmpeg.
Distributed under the terms of LGPLv2.1 or later.
Shanghai, China Copyright (C) 2012-2019 Wang Bin (aka. Lucas Wang) wbsecg1@gmail.com
Donate: http://qtav.org/donate.html
Source: https://github.com/wang-bin/QtAV
Home page: http://qtav.org
[ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1)
[ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1)
QObject::connect: No such signal QtAV::AVPlayer::metaDataAvailableChanged(bool)


############################################ InfoPropertiesView

Create Tree : Fjl
Create Tree : Vide
Create Tree : Audi


############################################ InfoPropertiesView

Create Tree : Fjl
Segmentation fault (core dumped)

[thany2]

Sorry, but how did you get those logs (I assume they are) on a crash?

For me XnView is jut *poof* and gone completely.

[xnview]

The first video metadata read ok, but for the second, it crashed:

on which format?

[roti]

I returned to use XnView.
With Version 1.4.5 64bits (May 10 2023) it is working.