https://bugs.kde.org/show_bug.cgi?id=419461
Bug ID: 419461
Summary: Audio out of sync in rendered output
Product: kdenlive
Version: git-master
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Display & Export
Assignee: j...@kdenlive.org
Reporter: alridd...@googlemail.com
Target Milestone: ---
SUMMARY
When rendering a project, the resulting output has audio which gradually gets
ahead of the video output. The overall sync deviation was about 10 seconds over
a 14 minute video. The render phase reports the following error for every frame
for the last 10 seconds of the render:
[consumer avformat] error with audio encode: -541478725 (frame 21094)
The last ~10 seconds of the rendered video are completely silent, as the audio
has already reached the end of the data.
I have reproduced this error with kdenlive built from git master, and with
kdenlive-20.07.70-689e351-x86_64.appimage
STEPS TO REPRODUCE
1. Load any project into kdenlive
2. Render the project to output video
3.
OBSERVED RESULT
The audio drifts gradually out of sync in the output, about 1% ahead of the
rendered video.
EXPECTED RESULT
The audio should be in-sync with the video.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Fedora 31
(available in About System)
KDE Plasma Version:
KDE Frameworks Version: 5.61.0
Qt Version: 5.12.4
ADDITIONAL INFORMATION
My project profile is 1080p, 25fps, and I am rendering to mp4 using the
standard Format settings.
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