Bug 428708 - Kdenlive freezes computer when exporting MP4
Summary: Kdenlive freezes computer when exporting MP4
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Rendering & Export (show other bugs)
Version: 20.08.2
Platform: Ubuntu Linux
: NOR crash
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-05 01:16 UTC by Angelo
Modified: 2021-04-05 04:33 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:
fritzibaby: timeline_corruption+


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Description Angelo 2020-11-05 01:16:11 UTC
SUMMARY

Kdenlive crashes when exporting a MP4 video. Tried exporting WEBM and it worked fine.

The file has a few mp4 videos that are joined in the sequence. When I select the rendering type and it starts rendering, it keeps loading until about 70%, then the whole computer freezes.

The first time it happened I was using the computer with other software (like chrome). The other times the software was running withou my interaction. I tried:

- Exporting MP4, crashed
- Exporting WEBM, succesful
- Exporting MP4 via scrip, crashed
- Exporting WEBM then MP4 via scrip, succesfull then, on MP4, crashed

Project settings: Vertical HD 60fps
Export settings: MP4 - the dominating format (h264/aac)


STEPS TO REPRODUCE
1. Load a few mp4 files into the project and organize them in the timeline
2. Hit export with the aforementioned configuration
3. Wait until the computer freezes


OBSERVED RESULT
Computer entirely freezes without any error messages, can't see any log, have to reset.

EXPECTED RESULT
Video is exported succesfully


SOFTWARE/OS VERSIONS

 OS: Pop 20.04 focal
 Kernel: x86_64 Linux 5.8.0-7625-generic
 DE: GNOME 3.38.0
 CPU: Intel Core i7-4790 @ 8x 4GHz [32.0°C]
 GPU: GeForce GTX 1660 Ti
 RAM: 4086MiB / 15914MiB


ADDITIONAL INFORMATION

I followed the steps in "how to get backtrace" and, when I run *gdb kdenlive run*, it gives me *File or directory not found*
Comment 1 emohr 2021-03-06 10:40:36 UTC
Please try with the current Kdenlive AppImage version 20.12.2 to see if there are any packaging issues https://download.kde.org/stable/kdenlive/20.12/linux/
Comment 2 Bug Janitor Service 2021-03-21 04:33:47 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 3 Bug Janitor Service 2021-04-05 04:33:38 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!