https://bugs.kde.org/show_bug.cgi?id=506776
Bug ID: 506776
Summary: H.264 render crashes consistently in hours long
project file in version 25.04.3
Classification: Applications
Product: kdenlive
Version First 25.04.4
Reported In:
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: Rendering & Export
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 183069
--> https://bugs.kde.org/attachment.cgi?id=183069&action=edit
The project file that exhibits the described problem
Fedora's problem reporting app lists the following after the crash:
mlt quit unexpectedly
7.32.0-1.fc42.x86_64
https://retrace.fedoraproject.org/faf/reports/bthash/24e05cae227ce92349a1e6c36af2c53054e93d13
--- Running report_uReport ---
('report_uReport' completed successfully)
--- Skipping collect_GConf ---
No matching actions found for this event.
--- Skipping collect_vimrc_system ---
No matching actions found for this event.
--- Skipping collect_vimrc_user ---
No matching actions found for this event.
--- Skipping collect_xsession_errors ---
No matching actions found for this event.
--- Running analyze_CCpp ---
Generating backtrace
Backtrace is generated and saved, 109961 bytes
--- Running analyze_BodhiUpdates ---
Looking for similar problems in bugzilla
Reporting is disabled because the backtrace has low informational value.
SUMMARY
STEPS TO REPRODUCE
1. Try to render WK.kdenlive. A project file with several mostly uncut video
files using the Ut video codec that OBS uses when you choose for uncompressed
video capture
2. Render the project in H.264 (not hardware accelerated) settings won't matter
3. Wait until render is at 99%
OBSERVED RESULT
The render will crash every time when the render at H.264 is almost finished at
the very end in Kdenlive version 25.04.3. The rendered result seemingly is fine
when played back.
EXPECTED RESULT
The render will finish succesfully.
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.15.3-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor
Memory: 32 GiB of RAM (31,2 GiB usable)
Graphics Processor: AMD Radeon RX 6700 XT
ADDITIONAL INFORMATION
I have tried reproducing this error in the daily build:
kdenlive-master-10539-linux-gcc-x86_64.AppImage
The render worked just fine both times I tried. While using version 25.04.3,
whether that is the Fedora Flatpak or the Fedora dnf packaged version both
exhibit the described crash.
The version first reported in is set to 25.04.4 because 25.04.3 was not in the
list.
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