I have a test video with which I am trying to see how good the VMAF target is so I can compare it in size and then decide if it is worth it going full AV1 for my archive. So I came across this tool which looks very nice but also ran into a problem basically immediately. (Also tried STV but that did not work and it seems to be a known issue.)
First problem was AV1 not supporting transcoding from yuvj420p so that caused an error. After which I ran a ffmpeg -pix-fmt yuv420 with x265 lossless. After selecting the default options +VMAF and optimizing thread counts to work for my processor I pressed the start button. My computer roars for a couple of seconds and then it just goes back to being idle. I tried to let it do its thing over several hours (6) nothing changed. It was still at 0% 0/1113 (0 fps, eta 0s).
When I select x265 it works. But the VMAF target does not do a proper job. 95 is actually 97 unless you select superfast.
This is what it looks like in task manager after ~5 seconds.
What is going wrong here? Can I request a full verbose build so I can figure it out?
Thank you
I have a test video with which I am trying to see how good the VMAF target is so I can compare it in size and then decide if it is worth it going full AV1 for my archive. So I came across this tool which looks very nice but also ran into a problem basically immediately. (Also tried STV but that did not work and it seems to be a known issue.)
First problem was AV1 not supporting transcoding from yuvj420p so that caused an error. After which I ran a ffmpeg -pix-fmt yuv420 with x265 lossless. After selecting the default options +VMAF and optimizing thread counts to work for my processor I pressed the start button. My computer roars for a couple of seconds and then it just goes back to being idle. I tried to let it do its thing over several hours (6) nothing changed. It was still at 0% 0/1113 (0 fps, eta 0s).
When I select x265 it works. But the VMAF target does not do a proper job. 95 is actually 97 unless you select superfast.
This is what it looks like in task manager after ~5 seconds.
What is going wrong here? Can I request a full verbose build so I can figure it out? Thank you