mpv-0.30.0 release from https://github.com/mpv-player/mpv (12-22-2019)
To build for Debian buster-backports, after all dependencies, i.e., ffmpeg, libjack-jackd2-dev instead of libjack-dev in debian/control, etc., were fulfilled:
Already executed ./bootstrap.py (to download waf)
All the patches have been applied, as well, with command: quilt push -a --fuzz=0
However, I renamed the debian/patches provided waf and utilized waf generated by bootstrap.py (see above).
Simply build with command:
dpkg-buildpackage -F -us -uc -jX -T binary-arch,binary-indep (where X stands for number of CPU cores assigned to the task)
Huelmati [Enjoy]!