https://bugs.kde.org/show_bug.cgi?id=508997
Bug ID: 508997
Summary: Export dialog lacks vital render speed option
Classification: Applications
Product: kdenlive
Version First 25.08.0
Reported In:
Platform: postmarketOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Rendering & Export
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I regularly find myself avoiding using kdenlive ever any for export to a lossy
format, since the export dialog appears to lack the vital render speed option.
There is bitrate, sure, but even at a high bitrate I'll get an extremely low
quality fast render, and not one where the is more CPU time spent on the same
bitrate to encode more details. For ffmpeg, I believe this would e.g.
correspond to ffmpeg VP9's -speed option.
There also doesn't seem to be any option to switch between one pass and two
pass for the average and constant bit rate options, and it's not clear from the
UI which one will be used.
STEPS TO REPRODUCE
1. Open Project > Render
2. Save a new render settings preset based on e.g. the Webm/VP9-Opus preset
3. Search for a way to adjust the render speed vs render quality trade-off,
that isn't the bitrate quality switch
OBSERVED RESULT
The setting appears to be missing.
EXPECTED RESULT
The setting is available.
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: postmarketOS v25.06
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.3
ADDITIONAL INFORMATION
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