public void PlayLooping()
{
if (_buffer != null)
{
_playFlag = PlayFlags.Looping;
_buffer.CurrentPosition = 0;
_buffer.Play(0, _playFlag);
}
}
public bool Play()
{
if (_buffer != null)
{
_playFlag = PlayFlags.None;
_buffer.Play(0, _playFlag);
return(true);
}
return(false);
}
public static extern bool PlaySound(string lpszName, int hModule, PlayFlags dwFlags);
private void process(bool initializeNextTrack)
{
preparing = true;
SecondarySoundBuffer sBuff = null;
int p = playPointer;
if (initializeNextTrack)
{
p++; // Point to the next track which we will initialize.
}
MemoryStream PcmStream = null;
PlayFlags f = PlayFlags.None;
if (p > soundBuffers.Count - 1)
{
SoundBufferDescription desc = new SoundBufferDescription();
desc.Flags = BufferFlags.ControlPositionNotify | BufferFlags.ControlVolume | BufferFlags.GetCurrentPosition2 | BufferFlags.GlobalFocus;
byte[] outBuffer = new Byte[4096];
oggFile = new OggVorbisFileStream(fileNames[p]);
PcmStream = new MemoryStream();
int PcmBytes = -1;
WaveFormat waveFormat = new WaveFormat();
// Decode the Ogg Vorbis data into its PCM data
while (PcmBytes != 0)
{
PcmBytes = oggFile.Read(outBuffer, 0, outBuffer.Length);
PcmStream.Write(outBuffer, 0, PcmBytes);
}
VorbisInfo info = oggFile.Info;
waveFormat = new WaveFormat(info.Rate, bitsPerSample, info.Channels);
desc.Format = waveFormat;
desc.BufferBytes = (int)PcmStream.Length;
lock (lockObject) // So we don't lose a simultaneous volume change.
soundBuffers.Add(sBuff = new SecondarySoundBuffer(device, desc));
sBuff.Write(PcmStream.ToArray(), 0, LockFlags.EntireBuffer);
// In a multi-wave playback, only loop the last track. The preceeding tracks are intros.
// Next, if we have a multi-file situation, we need to wait for the current file to stop playing before starting the next one.
// This handler will also fire when a sound is done playing by default so we can explicitly dispose of the soundBuffer.
stoppedSignal = new AutoResetEvent(false);
NotificationPosition[] n = { new NotificationPosition()
{
Offset = (int)PcmStream.Length - 1, WaitHandle = new AutoResetEvent(false)
} };
stoppedSignal = (AutoResetEvent)(n[0].WaitHandle);
sBuff.SetNotificationPositions(n);
}
else // If this buffer has already been initialized ahead of time
{
sBuff = soundBuffers[p];
}
if (!initializeNextTrack)
{
Thread t = new Thread(stopEventHandler);
t.Start();
sBuff.Volume = m_volume;
f = (loop && p == fileNames.Length - 1) ? PlayFlags.Looping : PlayFlags.None;
sBuff.Play(0, f);
}
if (PcmStream != null)
{
oggFile.Close();
oggFile.Dispose();
PcmStream.Close();
PcmStream.Dispose();
}
if (!initializeNextTrack && playPointer < fileNames.Length - 1) // Prepare the next track.
{
process(true);
}
preparing = false;
}
