[Cin] dav1d 0.5.1 patch fix?

[Andrea paz]

Using the same AV1 videos but in HD resolution instead of FullHD, I
don't have any problems or even slowdowns in playback and reverse
playback. I tried both using the 2 exports and "--disable-dav1d" and
without these configurations: all is fine in both cases.
Anyway, my VM has always been set up with 8GB of RAM (out of 32
physical) and 4c/8t for the CPU (out of 8c/16t physical), but
apparently that's not enough to support FullHD.

On my system (Arch Linux 64-bit; KDE), I've tried compiling just the
patch (without export and --disable-dav1d) and it works without
problems. However, with FullHD videos, playback is smooth but reverse
playback has some framerate drops.

Sorry for wasting your time behind false problems.