public void OpenFile(string filename)
{
Stop();
Vector3 center = new Vector3(0);
_waveSource = CodecFactory.Instance.GetCodec(filename).ToMono();
_masteringVoice = _xaudio2.CreateMasteringVoice(XAudio2.DefaultChannels, XAudio2.DefaultSampleRate);
_streamingSourceVoice = new StreamingSourceVoice(_xaudio2, _waveSource, 150);
object defaultDevice = _xaudio2.DefaultDevice;
ChannelMask channelMask;
if (_xaudio2.Version == XAudio2Version.XAudio2_7)
{
var xaudio27 = (XAudio2_7) _xaudio2;
var deviceDetails = xaudio27.GetDeviceDetails((int) defaultDevice);
channelMask = deviceDetails.OutputFormat.ChannelMask;
_destinationChannels = deviceDetails.OutputFormat.Channels;
}
else
{
channelMask = _masteringVoice.ChannelMask;
_destinationChannels = _masteringVoice.VoiceDetails.InputChannels;
}
_sourceChannels = _waveSource.WaveFormat.Channels;
_x3daudio = new X3DAudioCore(channelMask);
_listener = new Listener()
{
Position = center,
OrientFront = new Vector3(0, 0, 1),
OrientTop = new Vector3(0, 1, 0),
Velocity = new Vector3(0, 0, 0)
};
_emitter = new Emitter()
{
ChannelCount = _sourceChannels,
CurveDistanceScaler = float.MinValue,
OrientFront = new Vector3(0, 0, 1),
OrientTop = new Vector3(0, 1, 0),
Position = new Vector3(0, 0, 0),
Velocity = new Vector3(0, 0, 0)
};
StreamingSourceVoiceListener.Default.Add(_streamingSourceVoice);
_streamingSourceVoice.Start();
_isPlaying = true;
}
private void SetEmitterPosition(Vector3 vector3)
{
DspSettings dspSettings = new DspSettings(_sourceChannels, _destinationChannels);
_emitter.Position = vector3;
//just calculate the matrix... no doppler or anything else.
_x3daudio.X3DAudioCalculate(_listener, _emitter, CalculateFlags.Matrix, dspSettings);
_streamingSourceVoice.SetOutputMatrix(_masteringVoice, _sourceChannels, _destinationChannels, dspSettings.MatrixCoefficients);
}