Bug 514122

Summary:	proxy-clips: Codec vp9_cuvid is not supported.
Product:	[Applications] kdenlive	Reporter:	pimpelmeesje <jommedox5>
Component:	Rendering & Export	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description pimpelmeesje 2026-01-03 19:46:34 UTC

When adding video in project bin.
With proxyclips enabled and random coding-profile.
I get this error-message: 

[vp9_cuvid @ 0x6088f7443040] Codec vp9_cuvid is not supported.
[vist#0:0/vp9 @ 0x6088f7418d40] Error while opening decoder: Invalid argument
[vost#0:0/h264_nvenc @ 0x6088f746b300] Error initializing a simple filtergraph
Error opening output file /home/xxxxxx/.cache/kdenlive/proxy/652486ab916e08e32fd903c9e5631ab8.mov.
Error opening output files: Invalid argument

Video-codec of imported video in project-bin is VP9 .
Can play with ffplay
Can play with melt
without proxy-clips enabled it is possible to edit and export(mp4-h264) video successfully. 

nvidia-driver: 535.274.02
NVIDIA GeForce GTX 850M

Comment 1 pimpelmeesje 2026-01-04 18:35:28 UTC

edit: it's only with specific codec.  Changing coding-profile won't be active, even after clicking "apply".
For the new selected coding-profile to be active, a restart of kdenlive is necessary.