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