vmaf VS cartwheel-ffmpeg

Netflix did VMAF for this: https://github.com/Netflix/vmaf

It checks a reference video against an encoded video and returns a score representing how close the encoded video appears to the original from a human perspective.

Not sure this is the right sub but I'm going to encode my entire BluRay collection in AV1 / NVEC. I'd like to optimize settings with VMAF but would like an ubuntu/debian based GUI to work with.

VMAF for anybody that doesn't know quantifies the quality difference between a source and modified video.

Netflix even has a method to measure perceivable quality difference. A little while ago I used this tool to calculate this.

Well you can use something like https://mediaarea.net/en/MediaInfo to look at the files and https://github.com/Netflix/vmaf to see if there is no loss.

Vmaf exists

You can try some tests https://github.com/Netflix/vmaf

You can try VMAF as well (which ffmpeg supports). It's normally recommended to make a lossless copy first as a baseline too

It exists only as a patch from Intel (https://github.com/intel/cartwheel-ffmpeg/blob/master/patche...) but I haven't seen any efforts to upstream it yet.

So I'd think that this might be a bug, possibly due to the more or less alpha status of support for the Intel Arc on Linux. But I don't know from where it got introduced, most likely the Intel Arc specific Mesa Driver or a patch gone wrong from cartwheel-ffmpeg.

Anyway, the initial reviews are out so I'm not in a massive rush. It would just be nice to have Nvidia AV1 support added. (I had to use Intel's own Cartwheel branch to get AV1 support with Arc, but at least I had that option.)