/// <summary>
/// Create & initialize the Notifier object and notification positions in the
/// streaming SecondaryBuffer. These fill positions persist through multiple
/// Play/Pause events; however, they are replaced by the single endPosition
/// at end of data, and are reloaded by Play() if Stopped (position == 0).
/// </summary>
/// <param name="numberOfSectors">number of equal-sized sectors in the buffer</param>
private void SetFillNotifications(int numberOfSectors)
{
// Set up the fill-notification positions at last byte of each sector.
// All use the same event, in contrast to recipe in DX9.0 SDK Aug 2005 titled
// "DirectSound Buffers | Using Streaming Buffers"
for (int i = 0; i < numberOfSectors; i++)
{
NotificationPositionArray[i].Offset = (i + 1) * SectorSize - 1;
NotificationPositionArray[i].Event = NotificationEvent;
}
// set the buffer to fire events at the notification positions
buffer.SetNotificationPositions(NotificationPositionArray);
}
/// <summary>
/// Initializes a media player with the given file
/// </summary>
/// <param name="fileName">the file to play</param>
/// <returns>true if successful</returns>
private bool _setupSoundPlayer(string filename)
{
bool retval = false;
soundPlayer = null;
if ((filename.Length != 0))
{
try
{
fileName = filename;
soundPlayer = DirectSoundWrapper.CreateSoundBufferFromWave(fileName);
SlimDX.Multimedia.WaveStream waveFile = new SlimDX.Multimedia.WaveStream(fileName);
List <NotificationPosition> pos = new List <NotificationPosition>();
notificationPosition.Offset = (int)waveFile.Length - 1;
notificationPosition.Event = new AutoResetEvent(false);
pos.Add(notificationPosition);
soundPlayer.SetNotificationPositions(pos.ToArray());
}
catch (Exception ex)
{
logger.Error("[SoundPlayer] Error creating soundplayer: " + ex.Message);
}
_updateVolume(volume);
retval = true;
}
return(retval);
}
public DirectSound(
Form form,
int sampleRate,
int bufferCount)
{
if ((sampleRate % 50) != 0)
{
throw new ArgumentOutOfRangeException("sampleRate", "Sample rate must be a multiple of 50!");
}
_sampleRate = sampleRate;
var bufferSize = sampleRate / 50;
for (int i = 0; i < bufferCount; i++)
{
_fillQueue.Enqueue(new uint[bufferSize]);
}
_bufferSize = bufferSize;
_bufferCount = bufferCount;
_zeroValue = 0;
var hWnd = form != null ? form.Handle : IntPtr.Zero;
_device = new DirectSound8();
_device.SetCooperativeLevel(hWnd, DSSCL.PRIORITY);
// we always use 16 bit stereo (uint per sample)
const short channels = 2;
const short bitsPerSample = 16;
const int sampleSize = 4; // channels * (bitsPerSample / 8);
var wf = new WaveFormat(_sampleRate, bitsPerSample, channels);
// Create a buffer
var bufferDesc = new DSBUFFERDESC();
bufferDesc.dwBufferBytes = _bufferSize * sampleSize * _bufferCount;
bufferDesc.dwFlags =
DSBCAPS_FLAGS.CTRLVOLUME |
DSBCAPS_FLAGS.CTRLPOSITIONNOTIFY |
DSBCAPS_FLAGS.GLOBALFOCUS |
DSBCAPS_FLAGS.GETCURRENTPOSITION2;
bufferDesc.Format = wf;
_soundBuffer = new SecondarySoundBuffer(_device, bufferDesc);
var posNotify = new DSBPOSITIONNOTIFY[_bufferCount];
for (int i = 0; i < posNotify.Length; i++)
{
posNotify[i] = new DSBPOSITIONNOTIFY();
posNotify[i].dwOffset = i * _bufferSize * sampleSize;
posNotify[i].WaitHandle = _fillEvent;
}
_soundBuffer.SetNotificationPositions(posNotify);
_wavePlayThread = new Thread(WavePlayThreadProc);
_wavePlayThread.IsBackground = true;
_wavePlayThread.Name = "WavePlay";
_wavePlayThread.Priority = ThreadPriority.Highest;
_wavePlayThread.Start();
}
public void run()
{
directSound = new DirectSound();
IntPtr hwnd = GetDesktopWindow();
// Set Cooperative Level to PRIORITY (priority level can call the SetFormat and Compact methods)
directSound.SetCooperativeLevel(hwnd, CooperativeLevel.Priority);
// Create PrimarySoundBuffer
var primaryBufferDesc = new SoundBufferDescription();
primaryBufferDesc.Flags = BufferFlags.PrimaryBuffer;
primaryBufferDesc.AlgorithmFor3D = Guid.Empty;
primarySoundBuffer = new PrimarySoundBuffer(directSound, primaryBufferDesc);
// Create SecondarySoundBuffer
int soundLatencyInMilliseconds = 100;
var secondaryBufferDesc = new SoundBufferDescription();
secondaryBufferDesc.BufferBytes = soundStreamer.waveFormat.ConvertLatencyToByteSize(soundLatencyInMilliseconds);
secondaryBufferDesc.Format = soundStreamer.waveFormat;
secondaryBufferDesc.Flags = BufferFlags.GetCurrentPosition2 | BufferFlags.ControlPositionNotify | BufferFlags.GlobalFocus |
BufferFlags.ControlVolume | BufferFlags.StickyFocus | BufferFlags.Trueplayposition;
secondaryBufferDesc.AlgorithmFor3D = Guid.Empty;
secondarySoundBuffer = new SecondarySoundBuffer(directSound, secondaryBufferDesc);
NotificationPosition n = new NotificationPosition();
n.Offset = (secondaryBufferDesc.BufferBytes / 4) * 1;
n.WaitHandle = soundStreamer.wait;
NotificationPosition n2 = new NotificationPosition();
n2.Offset = (secondaryBufferDesc.BufferBytes / 4) * 3;
n2.WaitHandle = soundStreamer.wait;
secondarySoundBuffer.SetNotificationPositions(new NotificationPosition[] { n, n2 });
soundStreamerThread = new Thread(soundStreamer.loop);
soundStreamer.secondarySoundBuffer = secondarySoundBuffer;
soundStreamerThread.Start();
// play the sound
secondarySoundBuffer.Play(0, PlayFlags.Looping);
}
public DXWavePlayer(int device, int BufferByteSize, DataRequestDelegate fillProc)
{
if (BufferByteSize < 1000)
{
throw new ArgumentOutOfRangeException("BufferByteSize", "minimal size of buffer is 1000 bytes");
}
_buffersize = BufferByteSize;
_requestproc = fillProc;
var devices = DirectSound.GetDevices();
if (device <= 0 || device >= devices.Count)
{
device = 0;
}
_outputDevice = new DirectSound(devices[device].DriverGuid);
System.Windows.Interop.WindowInteropHelper wh = new System.Windows.Interop.WindowInteropHelper(Application.Current.MainWindow);
_outputDevice.SetCooperativeLevel(wh.Handle, CooperativeLevel.Priority);
_buffDescription = new SoundBufferDescription();
_buffDescription.Flags = BufferFlags.ControlPositionNotify | BufferFlags.ControlFrequency | BufferFlags.ControlEffects | BufferFlags.GlobalFocus | BufferFlags.GetCurrentPosition2;
_buffDescription.BufferBytes = BufferByteSize * InternalBufferSizeMultiplier;
WaveFormat format = new WaveFormat(16000, 16, 1);
_buffDescription.Format = format;
_soundBuffer = new SecondarySoundBuffer(_outputDevice, _buffDescription);
_synchronizer = new AutoResetEvent(false);
NotificationPosition[] nots = new NotificationPosition[InternalBufferSizeMultiplier];
NotificationPosition not;
int bytepos = 800;
for (int i = 0; i < InternalBufferSizeMultiplier; i++)
{
not = new NotificationPosition();
not.Offset = bytepos;
not.WaitHandle = _synchronizer;
nots[i] = not;
bytepos += BufferByteSize;
}
_soundBuffer.SetNotificationPositions(nots);
_waitThread = new Thread(new ThreadStart(DataRequestThread))
{
Name = "MyWavePlayer.DataRequestThread"
};
_waitThread.Start();
}
public DxPlaySound(int frequency)
{
device = new DirectSound(); //音频设备对象
IntPtr hwnd = new WindowInteropHelper(DisPlayWindow.HMainWindow).Handle; //设置窗口句柄
device.SetCooperativeLevel(hwnd, CooperativeLevel.Priority);
//设置Wav音频文件对象属性
WaveFormat waveformat = SetWaveFormat(frequency);
//设置通知对象
mNotifySize = waveformat.AverageBytesPerSecond / 5; //0.2S数据
int mainBufferSize = waveformat.AverageBytesPerSecond * 2; // 2s数据长度
cNotifyNum = mainBufferSize / mNotifySize; //通知个数 10 == 2s/0.2s
//设置主缓存区
SoundBufferDescription sndBufferDesc = new SoundBufferDescription
{
SizeInBytes = mainBufferSize,
Format = waveformat,
Flags = BufferFlags.ControlPositionNotify | BufferFlags.ControlFrequency | BufferFlags.GlobalFocus | BufferFlags.GetCurrentPosition2
};
scdBuffer = new SecondarySoundBuffer(device, sndBufferDesc); //为声音建立二级缓存
if (scdBuffer != null)
{
mNotificationEvent = new AutoResetEvent(false);
isRunning = true;
Task.Factory.StartNew(NotifyThread);
NotificationPosition[] positionNotify = new NotificationPosition[cNotifyNum]; //通知数组
for (int i = 0; i < cNotifyNum; i++)
{
positionNotify[i].Offset = mNotifySize * (i + 1) - 1;
positionNotify[i].Event = mNotificationEvent;
}
scdBuffer.SetNotificationPositions(positionNotify);
}
}
/// <summary>
/// Constructs a new Audio Output Device.
/// </summary>
///
/// <param name="device">Global identifier of the audio output device.</param>
/// <param name="owner">The owner window handle.</param>
/// <param name="samplingRate">The sampling rate of the device.</param>
/// <param name="channels">The number of channels of the device.</param>
///
public AudioOutputDevice(Guid device, IntPtr owner, int samplingRate, int channels)
{
this.owner = owner;
this.samplingRate = samplingRate;
this.channels = channels;
this.device = device;
DirectSound ds = new DirectSound(device);
ds.SetCooperativeLevel(owner, CooperativeLevel.Priority);
// Set the output format
WaveFormat waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(samplingRate, channels);
bufferSize = 8 * waveFormat.AverageBytesPerSecond;
// Setup the secondary buffer
SoundBufferDescription desc2 = new SoundBufferDescription();
desc2.Flags =
BufferFlags.GlobalFocus |
BufferFlags.ControlPositionNotify |
BufferFlags.GetCurrentPosition2;
desc2.BufferBytes = bufferSize;
desc2.Format = waveFormat;
buffer = new SecondarySoundBuffer(ds, desc2);
var list = new List <NotificationPosition>();
int numberOfPositions = 32;
// Set notification for buffer percentiles
for (int i = 0; i < numberOfPositions; i++)
{
list.Add(new NotificationPosition()
{
WaitHandle = new AutoResetEvent(false),
Offset = i * bufferSize / numberOfPositions + 1,
});
}
// Set notification for end of buffer
list.Add(new NotificationPosition()
{
Offset = bufferSize - 1,
WaitHandle = new AutoResetEvent(false)
});
firstHalfBufferIndex = numberOfPositions / 2;
secondHalfBufferIndex = numberOfPositions;
notifications = list.ToArray();
Accord.Diagnostics.Debug.Assert(notifications[firstHalfBufferIndex].Offset == bufferSize / 2 + 1);
Accord.Diagnostics.Debug.Assert(notifications[secondHalfBufferIndex].Offset == bufferSize - 1);
// Make a copy of the wait handles
waitHandles = new WaitHandle[notifications.Length];
for (int i = 0; i < notifications.Length; i++)
{
waitHandles[i] = notifications[i].WaitHandle;
}
// Store all notification positions
buffer.SetNotificationPositions(notifications);
}
/// <summary>
/// Constructs a new Audio Output Device.
/// </summary>
///
/// <param name="device">Global identifier of the audio output device.</param>
/// <param name="owner">The owner window handle.</param>
/// <param name="samplingRate">The sampling rate of the device.</param>
/// <param name="channels">The number of channels of the device.</param>
///
public AudioOutputDevice(Guid device, IntPtr owner, int samplingRate, int channels)
{
this.owner = owner;
this.samplingRate = samplingRate;
this.channels = channels;
this.device = device;
DirectSound ds = new DirectSound(device);
ds.SetCooperativeLevel(owner, CooperativeLevel.Priority);
// Set the output format
WaveFormat waveFormat = new WaveFormat();
waveFormat.FormatTag = WaveFormatTag.IeeeFloat;
waveFormat.BitsPerSample = 32;
waveFormat.BlockAlignment = (short)(waveFormat.BitsPerSample * channels / 8);
waveFormat.Channels = (short)channels;
waveFormat.SamplesPerSecond = samplingRate;
waveFormat.AverageBytesPerSecond = waveFormat.SamplesPerSecond * waveFormat.BlockAlignment;
bufferSize = 8 * waveFormat.AverageBytesPerSecond;
// Setup the secondary buffer
SoundBufferDescription desc2 = new SoundBufferDescription();
desc2.Flags =
BufferFlags.GlobalFocus |
BufferFlags.ControlPositionNotify |
BufferFlags.GetCurrentPosition2;
desc2.SizeInBytes = bufferSize;
desc2.Format = waveFormat;
buffer = new SecondarySoundBuffer(ds, desc2);
var list = new List<NotificationPosition>();
int numberOfPositions = 32;
// Set notification for buffer percentiles
for (int i = 0; i < numberOfPositions; i++)
{
list.Add(new NotificationPosition()
{
Event = new AutoResetEvent(false),
Offset = i * bufferSize / numberOfPositions + 1,
});
}
// Set notification for end of buffer
list.Add(new NotificationPosition()
{
Offset = bufferSize - 1,
Event = new AutoResetEvent(false)
});
firstHalfBufferIndex = numberOfPositions / 2;
secondHalfBufferIndex = numberOfPositions;
notifications = list.ToArray();
System.Diagnostics.Debug.Assert(notifications[firstHalfBufferIndex].Offset == bufferSize / 2 + 1);
System.Diagnostics.Debug.Assert(notifications[secondHalfBufferIndex].Offset == bufferSize - 1);
// Make a copy of the wait handles
waitHandles = new WaitHandle[notifications.Length];
for (int i = 0; i < notifications.Length; i++)
waitHandles[i] = notifications[i].Event;
// Store all notification positions
buffer.SetNotificationPositions(notifications);
}
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;
}
