pub unsafe extern "C" fn FMOD_System_GetChannelsPlaying(
system: *mut FMOD_SYSTEM,
channels: *mut c_int,
realchannels: *mut c_int,
) -> FMOD_RESULTpub unsafe extern "C" fn FMOD_System_GetChannelsPlaying(
system: *mut FMOD_SYSTEM,
channels: *mut c_int,
realchannels: *mut c_int,
) -> FMOD_RESULT