Bug 433239 - Cannot ungroup video from audio
Summary: Cannot ungroup video from audio
Status: RESOLVED FIXED
Alias: None
Product: kdenlive
Classification: Applications
Component: User Interface (show other bugs)
Version: 20.12.2
Platform: Appimage Linux
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-19 11:26 UTC by Abe
Modified: 2024-01-12 15:37 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
fritzibaby: timeline_corruption+


Attachments
video showing the issue (134.40 KB, video/mpeg)
2021-02-19 11:26 UTC, Abe
Details

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Description Abe 2021-02-19 11:26:24 UTC
Created attachment 135899 [details]
video showing the issue

SUMMARY

In my current project I can no longer ungroup audio from video.
The status bar displays "Cannot perform operation while dragging in timeline"

This happens both with mouse-right-click to "Ungroup Clips" and also when pressing the shortcut key I have assigned for it.


STEPS TO REPRODUCE
1. Right click on a video with audio
2. Choose Ungroup Clips

OBSERVED RESULT
Error message displayed

EXPECTED RESULT
Audio and video ungrouped

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Ubuntu on i3wm
(available in About System)
KDE Plasma Version: ?
KDE Frameworks Version: 5.76.0
Qt Version: 5.14.2

ADDITIONAL INFORMATION
Comment 1 Abe 2021-02-19 11:30:00 UTC
Resize item start produces the same error.

Both of these functions were working correctly a few minutes ago.
Comment 2 Abe 2021-02-19 11:32:43 UTC
Closing and re-opening Kdenlive solves both issues ¯\_(ツ)_/¯

So the question would be, what placed it in this odd state?

In case it's related, I work with a graphics tablet, no mouse.
Comment 3 farid 2021-03-05 14:00:46 UTC
Can you try using the nightly appimage build please?

https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/lastSuccessfulBuild/artifact/
Comment 4 Abe 2021-03-13 19:42:46 UTC
(In reply to farid from comment #3)
> Can you try using the nightly appimage build please?
> 
> https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/
> lastSuccessfulBuild/artifact/

I'm trying it. Currently I can Ungroup and Resize. I'll keep testing and report back. 

If I launch it from the console I see its very verbose, printing lines when I mouse-out of a clip, or on every frame if I hold the mouse button pressed on top of a clip. I guess things are being debugged.
Comment 5 Senas 2021-04-10 19:06:58 UTC
I do have the same problem. I have edited like 10 videos. first 5 open kdenlive programs at once rendering, and than closing them, opening one after an other 5 new instances of kdenlive with new other videos. To this point everything worked smooth. 

But when i opened a 6.th instance of kdenlive for editing my last video of the day this bug hits me too. Even after saving my changes to a new safe file, close the 6.th instance and open the project again in a new 6.th instant of kdenlive the but was persistent.

Then i safed all other projects, closed all instances of kdenlive and reopend my last project this problem was solved. Thats strange.

-
Windows 10 - 64Bit
Kdenlive 20.12.3
MLT Version 6.25.0
KDE Frameworks 5.79.0
Qt 5.15.2 (built against 5.15.2)
The windows windowing system
-
Comment 6 emohr 2021-04-11 08:17:48 UTC
@Senas. Kdenlive is not really multi-thread save. Especially the rendering part is not thread-save. Your issue is different than the one from the tread owner.
Comment 7 Jean-Baptiste Mardelle 2024-01-12 15:37:50 UTC
This is an old bug, caused by a bug in the timeline code where the drag operation was not properly terminated.
Closing as this has not been reproduced for a long time