[FFmpeg-user] Calculating VMAF of two mkv format videos.

[Aditya Dandavate]

On Thu, 21 Dec, 2023, 12:27 pm Ferdi Scholten, <ferdi at sttc-nlp.nl> wrote:

> I was trying to calculate VMAF of two mkv videos. One is lossless and
> > second is lossy.
> >
> > I tried to gave this command :
> >
> > ffmpeg -i outputvideo.mkv -i lossless.mkv -lavfi
> > libvmaf=log_path=output.xml -f null -
> >
> > But it didn't work. So, how can I calculate the VMAF scores of two mkv
> > videos ? Can anyone please help me with this ?
> >
> > Thank you. 🙏
> Just guesswork, probably libvmaf wasn't compiled in ffmpeg?
>
> We can't really tell, because no output from your command was posted.
>

[fc#0 @ 0000028c91977840] Filter libvmaf: default has an unconnected output
Error : Invalid argument

This was the message shown to me.

>