Hello. I am trying to get Nvidia hardware encoding working, specifically for ALVR but we may use FFmpeg to test if it’s working as that’s a more widely known program. I have an RTX 3060 card on a desktop computer. My Driver version is 525.89.02 and CUDA version 12 (pacman shows cuda 11.8.0-1 but nvidia-smi outputs CUDA version 12). I followed the Arch Wiki and installed nvidia-utils. The modules are loaded:
$ lsmod | grep nvidia
nvidia_drm 73728 7
nvidia_uvm 2908160 0
nvidia_modeset 1515520 9 nvidia_drm
nvidia 61444096 480 nvidia_uvm,nvidia_modeset
video 65536 1 nvidia_modeset
Trying to render a video with FFmpeg using this command ffmpeg -y -hwaccel cuda -i bigbuckbunny.mp4 bigbuckbunny2.mp4 works, but uses CPU. I compiled FFmpeg myself following these instructions and tried again and got this error:
Device creation failed: -12.
No device available for decoder: device type cuda needed for codec h264.
Also, ffmpeg -help encoder=h264_nvenc returns error Codec 'h264_nvenc' is not recognized by FFmpeg.. I have also installed x265, libde265 and nvenc packages from the AUR but the same issue still occurs. What can I do to get Nvidia H265 Hardware encoding working? Thanks in advance.