Update music library to use OpenMPT for mod playback.

[Quin]

It seems like the music library currently uses Libmodplug (at least to the best of my knowledge and from some testing and comparison). Libmodplug is quite old, seemingly last updated in 2002. OpenMPT is a much better option that's updated, and actually supports filters! can PB's music library possibly get an update?


Little more info about the libmodplug problem that lead me here:
The mod extreme filter test 1 by the open mpt devs fails, giving you random sawtooth waves in the output.
If your filter implements floating point math, like OpenMPT's does, it sounds like an alien space ship, but if your libmodplug, and implement your filter badly in fixed point math, you get random sawtooth waves all throughout the output.

[miso]

+1

[infratec]

+1

[minimy]

+1 * #PI