public XAudio2Stream(int rate, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
xaudio2 = new XAudio2();
//xaudio2 = new XAudio2(XAudio2Version.Version27); // To simulate Windows 7 behavior.
//xaudio2.CriticalError += Xaudio2_CriticalError;
// TODO : We need to decouple the number of emulated buffered frames and the
// size of the low-level audio buffers.
masteringVoice = new MasteringVoice(xaudio2);
waveFormat = new WaveFormat(rate, 16, 1);
audioBuffersRing = new AudioBuffer[numBuffers];
memBuffers = new DataPointer[audioBuffersRing.Length];
for (int i = 0; i < audioBuffersRing.Length; i++)
{
audioBuffersRing[i] = new AudioBuffer();
memBuffers[i].Size = bufferSize;
memBuffers[i].Pointer = Utilities.AllocateMemory(memBuffers[i].Size);
}
bufferFill = bufferFillCallback;
bufferSemaphore = new Semaphore(numBuffers, numBuffers);
quitEvent = new ManualResetEvent(false);
}
public PortAudioStream(int rate, int channels, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
if (refCount == 0)
{
Pa_Initialize();
refCount++;
}
Pa_OpenDefaultStream(out stream, 0, 1, PaSampleFormat.Int16, 44100, 0, null, IntPtr.Zero);
bufferFill = bufferFillCallback;
}
public OpenALStream(int rate, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
if (context == null)
{
context = new AudioContext();
}
freq = rate;
source = AL.GenSource();
buffers = AL.GenBuffers(numBuffers);
bufferFill = bufferFillCallback;
quit = false;
}
public PortAudioStream(int rate, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
if (refCount == 0)
{
Pa_Initialize();
}
refCount++;
streamCallback = new PaStreamCallback(StreamCallback);
immediateStreamCallback = new PaStreamCallback(ImmediateStreamCallback);
Pa_OpenDefaultStream(out stream, 0, 1, PaSampleFormat.Int16, rate, 0, streamCallback, IntPtr.Zero);
bufferFill = bufferFillCallback;
}
public OpenALStream(int rate, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
if (context == null)
{
context = new AudioContext();
Console.WriteLine($"Default OpenAL audio device is '{AudioContext.DefaultDevice}'");
}
// TODO : We need to decouple the number of emulated buffered frames and the
// size of the low-level audio buffers.
freq = rate;
source = AL.GenSource();
buffers = AL.GenBuffers(numBuffers);
bufferFill = bufferFillCallback;
quit = false;
}
public AndroidAudioStream(int rate, int bufferSizeInBytes, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
// Probably not needed, but i've seen things about effects in the log that
// worries me. Doesnt hurt.
AudioManager am = (AudioManager)Application.Context.GetSystemService(Context.AudioService);
am.UnloadSoundEffects();
bufferFill = bufferFillCallback;
audioTrack = new AudioTrack.Builder()
.SetAudioAttributes(new AudioAttributes.Builder().SetContentType(AudioContentType.Music).SetUsage(AudioUsageKind.Media).Build())
.SetAudioFormat(new AudioFormat.Builder().SetSampleRate(rate).SetEncoding(Encoding.Pcm16bit).SetChannelMask(ChannelOut.Mono).Build())
.SetTransferMode(AudioTrackMode.Stream)
.SetPerformanceMode(AudioTrackPerformanceMode.LowLatency)
.SetBufferSizeInBytes(bufferSizeInBytes).Build();
Debug.Assert(audioTrack.PerformanceMode == AudioTrackPerformanceMode.LowLatency);
}
public XAudio2Stream(int rate, int channels, int bufferSize, int numBuffers, GetBufferDataCallback bufferFillCallback)
{
xaudio2 = new XAudio2();
masteringVoice = new MasteringVoice(xaudio2);
waveFormat = new WaveFormat(rate, 16, channels);
audioBuffersRing = new AudioBuffer[numBuffers];
memBuffers = new DataPointer[audioBuffersRing.Length];
for (int i = 0; i < audioBuffersRing.Length; i++)
{
audioBuffersRing[i] = new AudioBuffer();
memBuffers[i].Size = bufferSize;
memBuffers[i].Pointer = Utilities.AllocateMemory(memBuffers[i].Size);
}
bufferFill = bufferFillCallback;
bufferSemaphore = new Semaphore(numBuffers, numBuffers);
quitEvent = new ManualResetEvent(false);
}
