private int ProcessAudio(ref ProcessData data)
{
// flushing parameters
if (data.NumInputs == 0 || data.NumOutputs == 0 || data.NumSamples == 0)
{
return(TResult.S_OK);
}
if (data.NumInputs != _audioInputs.Count || data.NumOutputs != _audioOutputs.Count)
{
return(TResult.E_Unexpected);
}
var inputBusInfo = _audioInputs[0];
var outputBusInfo = _audioOutputs[0];
if (!inputBusInfo.IsActive || !outputBusInfo.IsActive)
{
return(TResult.S_False);
}
// hard-coded on one stereo input and one stereo output bus (see ctor)
var inputBus = new AudioBusAccessor(ref data, BusDirections.Input, 0);
var outputBus = new AudioBusAccessor(ref data, BusDirections.Output, 0);
unsafe
{
for (int c = 0; c < inputBus.ChannelCount; c++)
{
var input = inputBus.GetUnsafeBuffer32(c);
var output = outputBus.GetUnsafeBuffer32(c);
outputBus.SetChannelSilent(0, input == null);
if (input != null && output != null)
{
for (int i = 0; i < outputBus.SampleCount; i++)
{
output[i] = input[i];
}
}
}
}
return(TResult.S_OK);
}
private int ProcessAudio(ref ProcessData data)
{
// flushing parameters
if (data.NumInputs == 0 || data.NumOutputs == 0)
{
return(TResult.S_OK);
}
if (data.NumInputs != _audioInputs.Count || data.NumOutputs != _audioOutputs.Count)
{
return(TResult.E_Unexpected);
}
var inputBusInfo = _audioInputs[0];
var outputBusInfo = _audioOutputs[0];
if (!inputBusInfo.IsActive || !outputBusInfo.IsActive)
{
return(TResult.S_False);
}
// hard-coded on one stereo input and one stereo output bus
var inputBus = new AudioBusAccessor(ref data, BusDirections.Input, 0);
var outputBus = new AudioBusAccessor(ref data, BusDirections.Output, 0);
unsafe
{
// can return null!
var inputLeft = inputBus.GetUnsafeBuffer32(0);
//var inputRight = inputBus.GetUnsafeBuffer32(1);
// TODO: check max num channels
float *inputRight = null;
var outputLeft = outputBus.GetUnsafeBuffer32(0);
//var outputRight = outputBus.GetUnsafeBuffer32(1);
// TODO: check max num channels
float *outputRight = null;
// silent inputs result in silent outputs
outputBus.SetChannelSilent(0, inputLeft == null);
outputBus.SetChannelSilent(1, inputRight == null);
if (outputLeft != null && inputLeft != null &&
outputRight != null && inputRight != null)
{
// copy samples
for (int i = 0; i < outputBus.SampleCount; i++)
{
outputLeft[i] = inputLeft[i];
outputRight[i] = inputRight[i];
}
}
else if (outputLeft != null && inputLeft != null)
{
// copy samples
for (int i = 0; i < outputBus.SampleCount; i++)
{
outputLeft[i] = inputLeft[i];
}
}
else if (outputRight != null && inputRight != null)
{
// copy samples
for (int i = 0; i < outputBus.SampleCount; i++)
{
outputRight[i] = inputRight[i];
}
}
}
return(TResult.S_OK);
}