You could also have remuxed the file with ffmpeg or mkvmerge and then fed it to Hybrid. 
Maybe someone has some free time on their hands and writes a patch for FrameCounter to also support .av1 video.
(I just tried: 'ffprobe.exe -count_frames g:\Output\test.av1' but that does not report a frame count)
Cu Selur
Ps.: 'ffmpeg -i raw.av1 -c copy -f null -' works,..
=> correction, no it does not, since the frame rate will be unknown.

Maybe someone has some free time on their hands and writes a patch for FrameCounter to also support .av1 video.

(I just tried: 'ffprobe.exe -count_frames g:\Output\test.av1' but that does not report a frame count)
Cu Selur
Ps.: 'ffmpeg -i raw.av1 -c copy -f null -' works,..
=> correction, no it does not, since the frame rate will be unknown.
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.