Bug 474563 - Crash after changing audio effect channel layout from stereo to mono with LADPSA plugins
Summary: Crash after changing audio effect channel layout from stereo to mono with LAD...
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: User Interface & Miscellaneous (show other bugs)
Version: 23.08.0
Platform: Debian unstable Linux
: NOR crash
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-09-15 17:34 UTC by jackleberry
Modified: 2023-11-02 03:45 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
backtrace (198.19 KB, text/vnd.kde.kcrash-report)
2023-09-15 17:34 UTC, jackleberry
Details

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Description jackleberry 2023-09-15 17:34:15 UTC
Created attachment 161643 [details]
backtrace

Application: kdenlive (23.08.0)

Qt Version: 5.15.10
Frameworks Version: 5.107.0
Operating System: Linux 6.1.0-12-amd64 x86_64
Windowing System: X11
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [CoredumpBackend]

-- Information about the crash:
Plugin Stack Before: Stereo to Mono (doesn't really change to mono, just copies one channel into the other), Fast Lookahead Limiter, 4-Band Parametric Filter, Noise Suppressor for Voice

Plugin Stack Before: Stereo to Mono (doesn't really change to mono, just copies one channel into the other), Mixdown (mode=Mono, does actually change channel layout), Fast Lookahead Limiter, 4-Band Parametric Filter, Noise Suppressor for Voice

Kdenlive crashes upon starting playback after having made the above change.

The crash can be reproduced every time.
Comment 1 emohr 2023-10-01 10:30:17 UTC
It seems to be a distro crash. Please try with the actual 23.08.1 AppImage from the download page to see if you can reproduce the crash.
Comment 2 jackleberry 2023-10-03 04:22:15 UTC
Tried this with git master. Still crashes, but not immediately. First it plays garbled audio and then crashes after a few seconds.
Comment 3 emohr 2023-10-03 15:26:28 UTC
On Windows I don’t have: Fast Lookahead Limiter, 4-Band Parametric Filter. 
Making the test with: Stereo to Mono, Noise Suppressor for Voice and then add Mixdown -> no crash happens. 

Please try to make the test without Fast Lookahead Limiter and 4-Band Parametric Filter. Do you still have a crash?

If yes that could be a distro issue as I don’t see any Kdenlive file in the backtrace.
Comment 4 Bug Janitor Service 2023-10-18 03:45:49 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 5 Bug Janitor Service 2023-11-02 03:45:55 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!