pub unsafe extern "C" fn FMOD_Channel_SetMixLevelsInput(
channel: *mut FMOD_CHANNEL,
levels: *mut f32,
numlevels: c_int,
) -> FMOD_RESULT
pub unsafe extern "C" fn FMOD_Channel_SetMixLevelsInput(
channel: *mut FMOD_CHANNEL,
levels: *mut f32,
numlevels: c_int,
) -> FMOD_RESULT