Best quality AV1 for youtube error?

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1

Ok so have set the format to webm and the codec to av1_nvenc (i have rtx 4080super), and tried to render the video but get an error as per below. It seems no matter which of the four av1_xxx options is picked it will error. Does Kdenlive not support AV1?

Rendering of /home/bb/Videos/untitled.webm crashed

Gtk-Message: 13:52:01.628: Failed to load module “xapp-gtk3-module”
Qt: Session management error: Could not open network socket
[av1_nvenc @ 0x7c4c500019c0] Driver does not support the required nvenc API version. Required: 13.0 Found: 12.2 [av1_nvenc @ 0x7c4c500019c0] The minimum required Nvidia driver for nvenc is (unknown) or newer
[comfortnoise @ 0x7c4c5001d000] Specified channel layout ‘stereo’ is not supported by the comfortnoise encoder [comfortnoise @ 0x7c4c5001d000] Supported channel layouts: [comfortnoise @ 0x7c4c5001d000] mono

2

Well, this:

[av1_nvenc @ 0x7c4c500019c0] Driver does not support the required nvenc API version.

Seems to say it’s your hardware driver that doesn’t support what you’re trying to do.

Kdenlive can’t magically let you do things with it that it doesn’t support.

3

For me looks like that hardware support is there (RTX 40s series), but there is mismatch with av1_nvenc expected API version and the actual driver level API version.

It could be that you need to upgrade your GPU drivers, or downgrade Kdenlive version which would support av1_nvenc API version 12.2.

I would suggest try to get latest NVIDIA drivers, as recently there were many great fixes, especially if you are running on Wayland

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