Pointer to the native function that provides access to audio sample frames.
This function pointer can be passed to native plug-ins that need to consume sample frames while avoiding any overhead related to going from native to C# or garbage collection interference.
Importing a native function that uses this type, for passing the native function pointer to the native plugin, would look like this:
SetConsumeSampleFramesFunction(
AudioSampleProvider.consumeSampleFramesNativeFunction, signalProvider.id,
signalProvider.channelCount, signalProvider.sampleRate);
See ConsumeSampleFramesNativeFunction for how to import a native function that uses this signature.