private void DisposeWave()
{
lock (mutex)
{
if (dataStream != null)
{
dataStream.Dispose();
dataStream = null;
}
if (audioBuffer != null)
{
audioBuffer.Dispose();
audioBuffer = null;
}
if (sourceVoice != null)
{
if (currentStream != null)
{
sourceVoice.BufferEnd -= bufferEndCallback;
}
sourceVoice.Stop();
sourceVoice.FlushSourceBuffers();
sourceVoice.Dispose();
sourceVoice = null;
}
current = null;
currentStream = null;
}
}
private bool FillBuffer(int bufferIdx, IPlayableStream stream)
{
AudioBuffer buffer = this.streamBuffers[bufferIdx];
byte[] byteBuffer = this.byteBuffers[bufferIdx];
bool isDone;
var dataRead = stream.GetWaveData(byteBuffer, StreamingBufferSize);
if (dataRead > 0)
{
streamBuffered += dataRead;
isDone = (streamBuffered >= streamLength);
buffer.Flags = isDone ? BufferFlags.EndOfStream : BufferFlags.None;
buffer.AudioBytes = dataRead;
buffer.Context = (IntPtr)bufferIdx;
sourceVoice.SubmitSourceBuffer(buffer);
bufferStatus.Set(bufferIdx, true);
}
else
{
isDone = true;
}
return(isDone);
}
private void DecoderThread(object wave)
{
IPlayableStream stream = wave as IPlayableStream;
lock (mutex)
{
while (true)
{
if (current != wave)
{
return;
}
// Fill any unfilled buffers
for (var i = 0; i < bufferStatus.Count; i++)
{
if (bufferStatus.Get(i) == false)
{
bool isDone = FillBuffer(i, stream);
if (isDone)
{
return;
}
}
}
// Wait to be signalled that a buffer is empty
System.Threading.Monitor.Wait(mutex);
}
}
}
public void Play(IPlayable wave)
{
lock (mutex)
{
if (wave == current)
{
if (isPaused)
{
sourceVoice.Start();
isPaused = false;
return;
}
}
DisposeWave();
xaudio.CommitChanges();
isPaused = false;
current = wave;
currentStream = wave as IPlayableStream;
if (decodeThread != null)
{
System.Threading.Monitor.Pulse(mutex);
decodeThread = null;
}
if (currentStream == null)
{
sourceVoice = new SourceVoice(xaudio, wave.WaveFormat);
dataStream = new SlimDX.DataStream(wave.WaveData, true, false);
audioBuffer = new SlimDX.XAudio2.AudioBuffer();
audioBuffer.AudioData = dataStream;
audioBuffer.AudioBytes = wave.WaveData.Length;
audioBuffer.Flags = BufferFlags.EndOfStream;
sourceVoice.SubmitSourceBuffer(audioBuffer);
sourceVoice.Start();
}
else
{
streamLength = currentStream.StreamLength;
streamBuffered = 0;
sourceVoice = new SourceVoice(xaudio, wave.WaveFormat);
sourceVoice.BufferEnd += bufferEndCallback;
// Fill buffers initially
bool isDone = false;
for (var i = 0; i < NumStreamingBuffers; i++)
{
isDone = FillBuffer(i, currentStream);
if (isDone)
{
break;
}
}
sourceVoice.Start();
if (!isDone)
{
System.Threading.ParameterizedThreadStart threadProc = DecoderThread;
decodeThread = new System.Threading.Thread(threadProc);
decodeThread.Name = "Vorbis Decoder Thread";
decodeThread.Start(currentStream);
}
}
}
}
private bool FillBuffer(int bufferIdx, IPlayableStream stream)
{
AudioBuffer buffer = this.streamBuffers[bufferIdx];
byte[] byteBuffer = this.byteBuffers[bufferIdx];
bool isDone;
var dataRead = stream.GetWaveData(byteBuffer, StreamingBufferSize);
if (dataRead > 0)
{
streamBuffered += dataRead;
isDone = (streamBuffered >= streamLength);
buffer.Flags = isDone ? BufferFlags.EndOfStream : BufferFlags.None;
buffer.AudioBytes = dataRead;
buffer.Context = (IntPtr)bufferIdx;
sourceVoice.SubmitSourceBuffer(buffer);
bufferStatus.Set(bufferIdx, true);
} else {
isDone = true;
}
return isDone;
}
private void DisposeWave()
{
lock (mutex)
{
if (dataStream != null)
{
dataStream.Dispose();
dataStream = null;
}
if (audioBuffer != null)
{
audioBuffer.Dispose();
audioBuffer = null;
}
if (sourceVoice != null)
{
if (currentStream != null)
{
sourceVoice.BufferEnd -= bufferEndCallback;
}
sourceVoice.Stop();
sourceVoice.FlushSourceBuffers();
sourceVoice.Dispose();
sourceVoice = null;
}
current = null;
currentStream = null;
}
}
public void Play(IPlayable wave)
{
lock (mutex)
{
if (wave == current)
{
if (isPaused)
{
sourceVoice.Start();
isPaused = false;
return;
}
}
DisposeWave();
xaudio.CommitChanges();
isPaused = false;
current = wave;
currentStream = wave as IPlayableStream;
if (decodeThread != null)
{
System.Threading.Monitor.Pulse(mutex);
decodeThread = null;
}
if (currentStream == null)
{
sourceVoice = new SourceVoice(xaudio, wave.WaveFormat);
dataStream = new SlimDX.DataStream(wave.WaveData, true, false);
audioBuffer = new SlimDX.XAudio2.AudioBuffer();
audioBuffer.AudioData = dataStream;
audioBuffer.AudioBytes = wave.WaveData.Length;
audioBuffer.Flags = BufferFlags.EndOfStream;
sourceVoice.SubmitSourceBuffer(audioBuffer);
sourceVoice.Start();
}
else
{
streamLength = currentStream.StreamLength;
streamBuffered = 0;
sourceVoice = new SourceVoice(xaudio, wave.WaveFormat);
sourceVoice.BufferEnd += bufferEndCallback;
// Fill buffers initially
bool isDone = false;
for (var i = 0; i < NumStreamingBuffers; i++)
{
isDone = FillBuffer(i, currentStream);
if (isDone)
{
break;
}
}
sourceVoice.Start();
if (!isDone)
{
System.Threading.ParameterizedThreadStart threadProc = DecoderThread;
decodeThread = new System.Threading.Thread(threadProc);
decodeThread.Name = "Vorbis Decoder Thread";
decodeThread.Start(currentStream);
}
}
}
}
