/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
/// <param name="waveProvider">IWaveProvider to play</param>
public void Init(IWaveProvider waveProvider)
{
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
WaveFormat correctSampleRateFormat = audioClient.MixFormat;
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
// Iterate from Worst to Best Format
WaveFormatExtensible[] bestToWorstFormats =
{
new WaveFormatExtensible(
outputFormat.SampleRate, 32,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 24,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 16,
outputFormat.Channels),
};
// Check from best Format to worst format ( Float32, Int24, Int16 )
for (int i = 0; i < bestToWorstFormats.Length; i++)
{
correctSampleRateFormat = bestToWorstFormats[i];
if (audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
break;
}
correctSampleRateFormat = null;
}
// If still null, then test on the PCM16, 2 channels
if (correctSampleRateFormat == null)
{
// Last Last Last Chance (Thanks WASAPI)
correctSampleRateFormat = new WaveFormatExtensible(outputFormat.SampleRate, 16, 2);
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
throw new NotSupportedException("Can't find a supported format to use");
}
}
}
outputFormat = correctSampleRateFormat;
}
else
{
outputFormat = closestSampleRateFormat;
}
// just check that we can make it.
resamplerDmoStream = new ResamplerDmoStream(waveProvider, outputFormat);
sourceProvider = resamplerDmoStream;
}
else
{
sourceProvider = waveProvider;
}
// Normal setup for both sharedMode
audioClient.Initialize(shareMode, AudioClientStreamFlags.None, latencyRefTimes, 0,
outputFormat, Guid.Empty);
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
// set up the read buffer
bufferFrameCount = audioClient.BufferSize;
bytesPerFrame = outputFormat.Channels * outputFormat.BitsPerSample / 8;
readBuffer = new byte[bufferFrameCount * bytesPerFrame];
}
public void SelectDevice(string devId)
{
_capDevice = _devices.GetDevice(devId.Trim());
if (_capDevice == null)
{
_audioClient = null;
_capClient = null;
return;
}
_capDeviceId = _capDevice.Id;
// モード
AudioClientShareMode shareMode = AudioClientShareMode.Exclusive;
AudioClientStreamFlags streamFlags = AudioClientStreamFlags.NoPersist;
if (_audioClient != null)
_capDevice.ReleaseAudioClient();
try
{
_audioClient = _capDevice.AudioClient;
_capFormat = _audioClient.MixFormat;
_capFormat.wFormatTag = WaveFormatTag.WAVE_FORMAT_EXTENSIBLE;
_capFormat.nChannels = 2;
_capFormat.nSamplesPerSec = 16000;
_capFormat.wBitsPerSample = 16;
_capFormat.SubFormat = CoreAudioApi.AudioMediaSubtypes.MEDIASUBTYPE_PCM;
_capFormat.wValidBitsPerSample = _capFormat.wBitsPerSample;
_capFormat.nBlockAlign = (ushort)(_capFormat.wBitsPerSample / 8.0 * _capFormat.nChannels);
_capFormat.nAvgBytesPerSec = _capFormat.nSamplesPerSec * _capFormat.nBlockAlign;
long tmp1; long tmp2;
_audioClient.GetDevicePeriod(out tmp1, out tmp2);
// 初期化
try
{
WAVEFORMATEXTENSIBLE tmpFmt = new WAVEFORMATEXTENSIBLE();
if (!_audioClient.IsFormatSupported(shareMode, _capFormat, ref tmpFmt))
_capFormat = tmpFmt;
_audioClient.Initialize(shareMode, streamFlags,
tmp2, tmp2,
_capFormat, Guid.Empty);
}
catch (System.Runtime.InteropServices.COMException ex)
{
try
{
AudioClientError error = (AudioClientError)ex.ErrorCode;
switch (error)
{
case AudioClientError.BufferSizeNotAligned:
uint bufSize = _audioClient.BufferSize;
tmp2 = (long)((10000.0 * 1000 / _capFormat.nSamplesPerSec * bufSize) + 0.5);
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
break;
case AudioClientError.UnsupportedFormat:
break;
}
}
catch (InvalidCastException)
{
}
}
_capClient = _audioClient.AudioCaptureClient;
}
catch (System.Runtime.InteropServices.COMException ex)
{
_audioClient = null;
_capClient = null;
throw ex;
}
}
/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
/// <param name="waveProvider">IWaveProvider to play</param>
public void Init(IWaveProvider waveProvider)
{
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
outputFormat = GetFallbackFormat();
}
else
{
outputFormat = closestSampleRateFormat;
}
try
{
// just check that we can make it.
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
}
catch (Exception)
{
// On Windows 10 some poorly coded drivers return a bad format in to closestSampleRateFormat
// In that case, try and fallback as if it provided no closest (e.g. force trying the mix format)
outputFormat = GetFallbackFormat();
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
}
dmoResamplerNeeded = true;
}
else
{
dmoResamplerNeeded = false;
}
sourceProvider = waveProvider;
// If using EventSync, setup is specific with shareMode
if (isUsingEventSync)
{
// Init Shared or Exclusive
if (shareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared, both latencies must be set to 0 (update - not sure this is true anymore)
//
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, 0,
outputFormat, Guid.Empty);
// Windows 10 returns 0 from stream latency, resulting in maxing out CPU usage later
var streamLatency = audioClient.StreamLatency;
if (streamLatency != 0)
{
// Get back the effective latency from AudioClient
latencyMilliseconds = (int)(streamLatency / 10000);
}
}
else
{
try
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, latencyRefTimes,
outputFormat, Guid.Empty);
}
catch (COMException ex)
{
// Starting with Windows 7, Initialize can return AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED for a render device.
// We should to initialize again.
if (ex.ErrorCode != ErrorCodes.AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED)
{
throw ex;
}
// Calculate the new latency.
long newLatencyRefTimes = (long)(10000000.0 /
(double)this.outputFormat.SampleRate *
(double)this.audioClient.BufferSize + 0.5);
this.audioClient.Dispose();
this.audioClient = this.mmDevice.AudioClient;
this.audioClient.Initialize(this.shareMode, AudioClientStreamFlags.EventCallback,
newLatencyRefTimes, newLatencyRefTimes, this.outputFormat, Guid.Empty);
}
}
// Create the Wait Event Handle
frameEventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
audioClient.SetEventHandle(frameEventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
else
{
// Normal setup for both sharedMode
audioClient.Initialize(shareMode, AudioClientStreamFlags.None, latencyRefTimes, 0,
outputFormat, Guid.Empty);
}
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
}
/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
/// <param name="waveProvider">IWaveProvider to play</param>
public void Init(IWaveProvider waveProvider)
{
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
WaveFormat correctSampleRateFormat = audioClient.MixFormat;
/*WaveFormat.CreateIeeeFloatWaveFormat(
* audioClient.MixFormat.SampleRate,
* audioClient.MixFormat.Channels);*/
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
// Iterate from Worst to Best Format
WaveFormatExtensible[] bestToWorstFormats =
{
new WaveFormatExtensible(
outputFormat.SampleRate, 32,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 24,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 16,
outputFormat.Channels),
};
// Check from best Format to worst format ( Float32, Int24, Int16 )
for (int i = 0; i < bestToWorstFormats.Length; i++)
{
correctSampleRateFormat = bestToWorstFormats[i];
if (audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
break;
}
correctSampleRateFormat = null;
}
// If still null, then test on the PCM16, 2 channels
if (correctSampleRateFormat == null)
{
// Last Last Last Chance (Thanks WASAPI)
correctSampleRateFormat = new WaveFormatExtensible(outputFormat.SampleRate, 16, 2);
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
throw new NotSupportedException("Can't find a supported format to use");
}
}
}
outputFormat = correctSampleRateFormat;
}
else
{
outputFormat = closestSampleRateFormat;
}
// just check that we can make it.
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
this.dmoResamplerNeeded = true;
}
else
{
dmoResamplerNeeded = false;
}
this.sourceProvider = waveProvider;
// If using EventSync, setup is specific with shareMode
if (isUsingEventSync)
{
// Init Shared or Exclusive
if (shareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared, both latencies must be set to 0
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, 0, 0,
outputFormat, Guid.Empty);
// Get back the effective latency from AudioClient
latencyMilliseconds = (int)(audioClient.StreamLatency / 10000);
}
else
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, latencyRefTimes,
outputFormat, Guid.Empty);
}
// Create the Wait Event Handle
frameEventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
audioClient.SetEventHandle(frameEventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
else
{
// Normal setup for both sharedMode
audioClient.Initialize(shareMode, AudioClientStreamFlags.None, latencyRefTimes, 0,
outputFormat, Guid.Empty);
}
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
}
private void InitializeInternal()
{
var defaultFormat = _waveFormat;
_audioClient = AudioClient.FromMMDevice(Device);
/*if (_shareMode == AudioClientShareMode.Exclusive)
* {
* _waveFormat = _waveFormat ?? _audioClient.MixFormat;
* }
* else
* {
* _waveFormat = _waveFormat ?? _audioClient.MixFormat;
* }*/
_waveFormat = _waveFormat ?? _audioClient.MixFormat;
_waveFormat = SetupWaveFormat(_waveFormat, _audioClient);
if (!_eventSync)
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.None | GetStreamFlags(), _latency * ReftimesPerMillisecond, 0, _waveFormat, Guid.Empty);
}
else
{
if (_shareMode == AudioClientShareMode.Exclusive)
{
try
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.StreamFlagsEventCallback | GetStreamFlags(), _latency * ReftimesPerMillisecond, _latency * ReftimesPerMillisecond, _waveFormat, Guid.Empty);
}
catch (CoreAudioAPIException e)
{
if (e.ErrorCode == unchecked ((int)0x88890019)) //AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED
{
int bufferSize = _audioClient.BufferSize;
_audioClient.Dispose();
long hnsRequestedDuration = (long)(((double)ReftimesPerMillisecond * 1000 / _waveFormat.SampleRate * bufferSize) + 0.5);
_audioClient = AudioClient.FromMMDevice(Device);
if (defaultFormat == null)
{
_waveFormat = _audioClient.MixFormat;
}
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.StreamFlagsEventCallback | GetStreamFlags(), hnsRequestedDuration, hnsRequestedDuration, _waveFormat, Guid.Empty);
}
}
}
else
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.StreamFlagsEventCallback | GetStreamFlags(), 0, 0, _waveFormat, Guid.Empty);
if (_audioClient.StreamLatency > 0)
{
_latency = (int)(_audioClient.StreamLatency / ReftimesPerMillisecond);
}
}
_eventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
_audioClient.SetEventHandle(_eventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
_audioCaptureClient = AudioCaptureClient.FromAudioClient(_audioClient);
}
/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
/// <param name="waveProvider">IWaveProvider to play</param>
public void Init(IWaveProvider waveProvider)
{
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
WaveFormat correctSampleRateFormat = audioClient.MixFormat;
/*WaveFormat.CreateIeeeFloatWaveFormat(
* audioClient.MixFormat.SampleRate,
* audioClient.MixFormat.Channels);*/
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
// Iterate from Worst to Best Format
WaveFormatExtensible[] bestToWorstFormats =
{
new WaveFormatExtensible(
outputFormat.SampleRate, 32,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 24,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 16,
outputFormat.Channels),
};
// Check from best Format to worst format ( Float32, Int24, Int16 )
for (int i = 0; i < bestToWorstFormats.Length; i++)
{
correctSampleRateFormat = bestToWorstFormats[i];
if (audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
break;
}
correctSampleRateFormat = null;
}
// If still null, then test on the PCM16, 2 channels
if (correctSampleRateFormat == null)
{
// Last Last Last Chance (Thanks WASAPI)
correctSampleRateFormat = new WaveFormatExtensible(outputFormat.SampleRate, 16, 2);
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
throw new NotSupportedException("Can't find a supported format to use");
}
}
}
outputFormat = correctSampleRateFormat;
}
else
{
outputFormat = closestSampleRateFormat;
}
// just check that we can make it.
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
dmoResamplerNeeded = true;
}
else
{
dmoResamplerNeeded = false;
}
sourceProvider = waveProvider;
// If using EventSync, setup is specific with shareMode
if (isUsingEventSync)
{
// Init Shared or Exclusive
if (shareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared, both latencies must be set to 0 (update - not sure this is true anymore)
//
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, 0,
outputFormat, Guid.Empty);
// Windows 10 returns 0 from stream latency, resulting in maxing out CPU usage later
var streamLatency = audioClient.StreamLatency;
if (streamLatency != 0)
{
// Get back the effective latency from AudioClient
latencyMilliseconds = (int)(streamLatency / 10000);
}
}
else
{
try
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, latencyRefTimes,
outputFormat, Guid.Empty);
}
catch (COMException ex)
{
// Starting with Windows 7, Initialize can return AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED for a render device.
// We should to initialize again.
if (ex.ErrorCode != ErrorCodes.AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED)
{
throw ex;
}
// Calculate the new latency.
long newLatencyRefTimes = (long)(10000000.0 /
(double)this.outputFormat.SampleRate *
(double)this.audioClient.BufferSize + 0.5);
this.audioClient.Dispose();
this.audioClient = this.mmDevice.AudioClient;
this.audioClient.Initialize(this.shareMode, AudioClientStreamFlags.EventCallback,
newLatencyRefTimes, newLatencyRefTimes, this.outputFormat, Guid.Empty);
}
}
// Create the Wait Event Handle
frameEventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
audioClient.SetEventHandle(frameEventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
else
{
// Normal setup for both sharedMode
audioClient.Initialize(shareMode, AudioClientStreamFlags.None, latencyRefTimes, 0,
outputFormat, Guid.Empty);
}
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
}
/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
private IWaveProvider Init()
{
var waveProvider = waveProviderFunc();
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
WaveFormat correctSampleRateFormat = audioClient.MixFormat;
/*WaveFormat.CreateIeeeFloatWaveFormat(
* audioClient.MixFormat.SampleRate,
* audioClient.MixFormat.Channels);*/
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
// Iterate from Worst to Best Format
WaveFormatExtensible[] bestToWorstFormats =
{
new WaveFormatExtensible(
outputFormat.SampleRate, 32,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 24,
outputFormat.Channels),
new WaveFormatExtensible(
outputFormat.SampleRate, 16,
outputFormat.Channels),
};
// Check from best Format to worst format ( Float32, Int24, Int16 )
for (int i = 0; i < bestToWorstFormats.Length; i++)
{
correctSampleRateFormat = bestToWorstFormats[i];
if (audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
break;
}
correctSampleRateFormat = null;
}
// If still null, then test on the PCM16, 2 channels
if (correctSampleRateFormat == null)
{
// Last Last Last Chance (Thanks WASAPI)
correctSampleRateFormat = new WaveFormatExtensible(outputFormat.SampleRate, 16, 2);
if (!audioClient.IsFormatSupported(shareMode, correctSampleRateFormat))
{
throw new NotSupportedException("Can't find a supported format to use");
}
}
}
outputFormat = correctSampleRateFormat;
}
else
{
outputFormat = closestSampleRateFormat;
}
// just check that we can make it.
//using (new MediaFoundationResampler(waveProvider, outputFormat))
{
}
this.resamplerNeeded = true;
}
else
{
resamplerNeeded = false;
}
// Init Shared or Exclusive
if (shareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared,
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, 0,
outputFormat, Guid.Empty);
// Get back the effective latency from AudioClient
latencyMilliseconds = (int)(audioClient.StreamLatency / 10000);
}
else
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, latencyRefTimes,
outputFormat, Guid.Empty);
}
// Create the Wait Event Handle
frameEventWaitHandle = NativeMethods.CreateEventEx(IntPtr.Zero, IntPtr.Zero, 0, EventAccess.EVENT_ALL_ACCESS);
audioClient.SetEventHandle(frameEventWaitHandle);
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
return(waveProvider);
}
private void selectDeviceImpl(string devId)
{
if (_capDevice != null && _capDevice.Id == devId)
{
return;
}
releaseDeviceImpl();
_capDevice = _devices.GetDevice(devId.Trim());
int idx = _deviceInfos.FindIndex((di) => { return di.DeviceId == devId; });
if (_capDevice == null)
{
#warning 例外
_audioClient = null;
_capClient = null;
return;
}
_capDeviceId = _capDevice.Id;
// モード
AudioClientShareMode shareMode = AudioClientShareMode.Shared;
// デバイスに適した初期化方法を決定
AudioClientStreamFlags streamFlags = AudioClientStreamFlags.NoPersist;
switch (shareMode)
{
case AudioClientShareMode.Shared:
switch (_capDevice.DataFlow)
{
case EDataFlow.eCapture:
streamFlags = 0;
break;
case EDataFlow.eRender:
streamFlags = AudioClientStreamFlags.Loopback;
break;
}
break;
case AudioClientShareMode.Exclusive:
streamFlags = AudioClientStreamFlags.NoPersist;
break;
}
// フォーマット
if (_audioClient != null) _capDevice.ReleaseAudioClient();
// ボリューム
_masterVolume = 0;
_channelVolumes = new double[_capDevice.AudioMeterInformation.PeakValues.Count];
var h = VolumeChanged;
if (h != null)
{
h(this, new VolumeChangedEventArgs(_capDeviceId, _masterVolume, _channelVolumes));
}
try
{
_audioClient = _capDevice.AudioClient;
_capFormat = _audioClient.MixFormat;
_capFormat.wFormatTag = WaveFormatTag.WAVE_FORMAT_EXTENSIBLE;
_capFormat.nChannels = 1;
_capFormat.nSamplesPerSec = 44100;
_capFormat.wBitsPerSample = 16;
_capFormat.SubFormat = CoreAudioApi.AudioMediaSubtypes.MEDIASUBTYPE_PCM;
_capFormat.wValidBitsPerSample = _capFormat.wBitsPerSample;
_capFormat.nBlockAlign = (ushort)(_capFormat.wBitsPerSample / 8.0 * _capFormat.nChannels);
_capFormat.nAvgBytesPerSec = _capFormat.nSamplesPerSec * _capFormat.nBlockAlign;
long tmp1; long tmp2;
_audioClient.GetDevicePeriod(out tmp1, out tmp2);
// 初期化
try
{
WAVEFORMATEXTENSIBLE tmpFmt = new WAVEFORMATEXTENSIBLE();
if (!_audioClient.IsFormatSupported(shareMode, _capFormat, ref tmpFmt)) _capFormat = tmpFmt;
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
}
catch (System.Runtime.InteropServices.COMException ex)
{
if ((uint)ex.ErrorCode == 0x88890019)
{
uint bufSize = _audioClient.BufferSize;
tmp2 = (long)((10000.0 * 1000 / _capFormat.nSamplesPerSec * bufSize) + 0.5);
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
}
}
clearBuffer();
_capClient = _audioClient.AudioCaptureClient;
// イベント発火
var del = DeviceSelected;
if (del != null)
{
del.Invoke(this, new DeviceSelectedEventArgs(_capDevice, idx));
}
}
catch (System.Runtime.InteropServices.COMException ex)
{
_audioClient = null;
_capClient = null;
throw ex;
}
}
private void InitializeInternal()
{
const int reftimesPerMillisecond = 10000;
_audioClient = AudioClient.FromMMDevice(Device);
_outputFormat = SetupWaveFormat(_source, _audioClient);
long latency = _latency * reftimesPerMillisecond;
AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED_TRY_AGAIN:
try
{
if (!_eventSync)
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.None, latency, 0, _outputFormat,
Guid.Empty);
}
else //event sync
{
if (_shareMode == AudioClientShareMode.Exclusive) //exclusive
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.StreamFlagsEventCallback, latency,
latency, _outputFormat, Guid.Empty);
}
else //shared
{
_audioClient.Initialize(_shareMode, AudioClientStreamFlags.StreamFlagsEventCallback, 0, 0,
_outputFormat, Guid.Empty);
//latency = (int)(_audioClient.StreamLatency / reftimesPerMillisecond);
}
}
}
catch (CoreAudioAPIException exception)
{
if (exception.ErrorCode == unchecked ((int)0x88890019)) //AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED
{
const long reftimesPerSec = 10000000;
int framesInBuffer = _audioClient.GetBufferSize();
// ReSharper disable once PossibleLossOfFraction
latency = (int)(reftimesPerSec * framesInBuffer / _outputFormat.SampleRate + 0.5);
goto AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED_TRY_AGAIN;
}
throw;
}
if (_audioClient.StreamLatency != 0) //windows 10 returns zero, got no idea why => https://github.com/filoe/cscore/issues/11
{
Latency = (int)(_audioClient.StreamLatency / reftimesPerMillisecond);
}
if (_eventSync)
{
_eventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
_audioClient.SetEventHandle(_eventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
_renderClient = AudioRenderClient.FromAudioClient(_audioClient);
if (_streamSwitchEvent == null)
{
_streamSwitchEvent = new AutoResetEvent(false);
}
InitializeStreamRouting();
}
/// <summary>
/// Initialize for playing the specified wave stream
/// </summary>
/// <param name="waveProvider">IWaveProvider to play</param>
public void Init(IWaveProvider waveProvider)
{
long latencyRefTimes = latencyMilliseconds * 10000;
outputFormat = waveProvider.WaveFormat;
// first attempt uses the WaveFormat from the WaveStream
WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
// Use closesSampleRateFormat (in sharedMode, it equals usualy to the audioClient.MixFormat)
// See documentation : http://msdn.microsoft.com/en-us/library/ms678737(VS.85).aspx
// They say : "In shared mode, the audio engine always supports the mix format"
// The MixFormat is more likely to be a WaveFormatExtensible.
if (closestSampleRateFormat == null)
{
outputFormat = GetFallbackFormat();
}
else
{
outputFormat = closestSampleRateFormat;
}
if (!windowsN)
{
try
{
// just check that we can make it.
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
}
catch (Exception)
{
// On Windows 10 some poorly coded drivers return a bad format in to closestSampleRateFormat
// In that case, try and fallback as if it provided no closest (e.g. force trying the mix format)
outputFormat = GetFallbackFormat();
try
{
using (new ResamplerDmoStream(waveProvider, outputFormat))
{
}
}
catch (Exception)
{
//still something wrong - assume windows N and DMO is broken in some way
windowsN = true;
}
}
}
dmoResamplerNeeded = true;
}
else
{
dmoResamplerNeeded = false;
}
sourceProvider = waveProvider;
// If using EventSync, setup is specific with shareMode
if (isUsingEventSync)
{
// Init Shared or Exclusive
if (shareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared, both latencies must be set to 0 (update - not sure this is true anymore)
//
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, 0,
outputFormat, Guid.Empty);
// Windows 10 returns 0 from stream latency, resulting in maxing out CPU usage later
var streamLatency = audioClient.StreamLatency;
if (streamLatency != 0)
{
// Get back the effective latency from AudioClient
latencyMilliseconds = (int)(streamLatency / 10000);
}
}
else
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(shareMode, AudioClientStreamFlags.EventCallback, latencyRefTimes, latencyRefTimes,
outputFormat, Guid.Empty);
}
// Create the Wait Event Handle
frameEventWaitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
audioClient.SetEventHandle(frameEventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
else
{
// Normal setup for both sharedMode
audioClient.Initialize(shareMode, AudioClientStreamFlags.None, latencyRefTimes, 0,
outputFormat, Guid.Empty);
}
// Get the RenderClient
renderClient = audioClient.AudioRenderClient;
}
public void SelectDevice(string devId)
{
_capDevice = _devices.GetDevice(devId.Trim());
if (_capDevice == null)
{
_audioClient = null;
_capClient = null;
return;
}
_capDeviceId = _capDevice.Id;
// モード
AudioClientShareMode shareMode = AudioClientShareMode.Exclusive;
AudioClientStreamFlags streamFlags = AudioClientStreamFlags.NoPersist;
if (_audioClient != null)
{
_capDevice.ReleaseAudioClient();
}
try
{
_audioClient = _capDevice.AudioClient;
_capFormat = _audioClient.MixFormat;
_capFormat.wFormatTag = WaveFormatTag.WAVE_FORMAT_EXTENSIBLE;
_capFormat.nChannels = 2;
_capFormat.nSamplesPerSec = 16000;
_capFormat.wBitsPerSample = 16;
_capFormat.SubFormat = CoreAudioApi.AudioMediaSubtypes.MEDIASUBTYPE_PCM;
_capFormat.wValidBitsPerSample = _capFormat.wBitsPerSample;
_capFormat.nBlockAlign = (ushort)(_capFormat.wBitsPerSample / 8.0 * _capFormat.nChannels);
_capFormat.nAvgBytesPerSec = _capFormat.nSamplesPerSec * _capFormat.nBlockAlign;
long tmp1; long tmp2;
_audioClient.GetDevicePeriod(out tmp1, out tmp2);
// 初期化
try
{
WAVEFORMATEXTENSIBLE tmpFmt = new WAVEFORMATEXTENSIBLE();
if (!_audioClient.IsFormatSupported(shareMode, _capFormat, ref tmpFmt))
{
_capFormat = tmpFmt;
}
_audioClient.Initialize(shareMode, streamFlags,
tmp2, tmp2,
_capFormat, Guid.Empty);
}
catch (System.Runtime.InteropServices.COMException ex)
{
try
{
AudioClientError error = (AudioClientError)ex.ErrorCode;
switch (error)
{
case AudioClientError.BufferSizeNotAligned:
uint bufSize = _audioClient.BufferSize;
tmp2 = (long)((10000.0 * 1000 / _capFormat.nSamplesPerSec * bufSize) + 0.5);
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
break;
case AudioClientError.UnsupportedFormat:
break;
}
}
catch (InvalidCastException)
{
}
}
_capClient = _audioClient.AudioCaptureClient;
}
catch (System.Runtime.InteropServices.COMException ex)
{
_audioClient = null;
_capClient = null;
throw ex;
}
}
private void selectDeviceImpl(string devId)
{
if (_capDevice != null && _capDevice.Id == devId)
{
return;
}
releaseDeviceImpl();
_capDevice = _devices.GetDevice(devId.Trim());
int idx = _deviceInfos.FindIndex((di) => { return(di.DeviceId == devId); });
if (_capDevice == null)
{
#warning 例外
_audioClient = null;
_capClient = null;
return;
}
_capDeviceId = _capDevice.Id;
// モード
AudioClientShareMode shareMode = AudioClientShareMode.Shared;
// デバイスに適した初期化方法を決定
AudioClientStreamFlags streamFlags = AudioClientStreamFlags.NoPersist;
switch (shareMode)
{
case AudioClientShareMode.Shared:
switch (_capDevice.DataFlow)
{
case EDataFlow.eCapture:
streamFlags = 0;
break;
case EDataFlow.eRender:
streamFlags = AudioClientStreamFlags.Loopback;
break;
}
break;
case AudioClientShareMode.Exclusive:
streamFlags = AudioClientStreamFlags.NoPersist;
break;
}
// フォーマット
if (_audioClient != null)
{
_capDevice.ReleaseAudioClient();
}
// ボリューム
_masterVolume = 0;
_channelVolumes = new double[_capDevice.AudioMeterInformation.PeakValues.Count];
var h = VolumeChanged;
if (h != null)
{
h(this, new VolumeChangedEventArgs(_capDeviceId, _masterVolume, _channelVolumes));
}
try
{
_audioClient = _capDevice.AudioClient;
_capFormat = _audioClient.MixFormat;
_capFormat.wFormatTag = WaveFormatTag.WAVE_FORMAT_EXTENSIBLE;
_capFormat.nChannels = 1;
_capFormat.nSamplesPerSec = 44100;
_capFormat.wBitsPerSample = 16;
_capFormat.SubFormat = CoreAudioApi.AudioMediaSubtypes.MEDIASUBTYPE_PCM;
_capFormat.wValidBitsPerSample = _capFormat.wBitsPerSample;
_capFormat.nBlockAlign = (ushort)(_capFormat.wBitsPerSample / 8.0 * _capFormat.nChannels);
_capFormat.nAvgBytesPerSec = _capFormat.nSamplesPerSec * _capFormat.nBlockAlign;
long tmp1; long tmp2;
_audioClient.GetDevicePeriod(out tmp1, out tmp2);
// 初期化
try
{
WAVEFORMATEXTENSIBLE tmpFmt = new WAVEFORMATEXTENSIBLE();
if (!_audioClient.IsFormatSupported(shareMode, _capFormat, ref tmpFmt))
{
_capFormat = tmpFmt;
}
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
}
catch (System.Runtime.InteropServices.COMException ex)
{
if ((uint)ex.ErrorCode == 0x88890019)
{
uint bufSize = _audioClient.BufferSize;
tmp2 = (long)((10000.0 * 1000 / _capFormat.nSamplesPerSec * bufSize) + 0.5);
_audioClient.Initialize(shareMode,
streamFlags, tmp2, tmp2, _capFormat, Guid.Empty);
}
}
clearBuffer();
_capClient = _audioClient.AudioCaptureClient;
// イベント発火
var del = DeviceSelected;
if (del != null)
{
del.Invoke(this, new DeviceSelectedEventArgs(_capDevice, idx));
}
}
catch (System.Runtime.InteropServices.COMException ex)
{
_audioClient = null;
_capClient = null;
throw ex;
}
}
//public void Setup(string DeviceId, bool useEventSync = false, int audioBufferMillisecondsLength = 100, bool exclusiveMode = false)
public void Setup(string deviceId, object captureProperties = null)
{
logger.Debug("AudioSourceEx::Setup(...) " + deviceId);
if (captureState != CaptureState.Closed)
{
throw new InvalidOperationException("Invalid audio capture state " + captureState);
}
WasapiCaptureProperties wasapiCaptureProperties = captureProperties as WasapiCaptureProperties ?? new WasapiCaptureProperties();
using (var deviceEnum = new MMDeviceEnumerator())
{
var mmDevices = deviceEnum.EnumerateAudioEndPoints(DataFlow.All, DeviceState.Active);
for (int i = 0; i < mmDevices.Count; i++)
{
var d = mmDevices[i];
if (d.ID == deviceId)
{
captureDevice = d;
continue;
}
d.Dispose();
}
}
if (captureDevice == null)
{
throw new Exception("MMDevice not found...");
}
this.isUsingEventSync = wasapiCaptureProperties.EventSyncMode;
this.audioBufferMillisecondsLength = wasapiCaptureProperties.BufferMilliseconds;
this.audioClient = captureDevice.AudioClient;
this.ShareMode = wasapiCaptureProperties.ExclusiveMode? AudioClientShareMode.Exclusive : AudioClientShareMode.Shared;
this.waveFormat = audioClient.MixFormat;
long requestedDuration = ReftimesPerMillisec * audioBufferMillisecondsLength;
if (!audioClient.IsFormatSupported(ShareMode, waveFormat))
{
throw new ArgumentException("Unsupported Wave Format");
}
try
{
var streamFlags = AudioClientStreamFlags.None;
if (captureDevice.DataFlow != DataFlow.Capture)
{
streamFlags = AudioClientStreamFlags.Loopback;
}
// If using EventSync, setup is specific with shareMode
if (isUsingEventSync)
{
var flags = AudioClientStreamFlags.EventCallback | streamFlags;
// Init Shared or Exclusive
if (ShareMode == AudioClientShareMode.Shared)
{
// With EventCallBack and Shared, both latencies must be set to 0
audioClient.Initialize(ShareMode, flags, requestedDuration, 0, waveFormat, Guid.Empty);
}
else
{
// With EventCallBack and Exclusive, both latencies must equals
audioClient.Initialize(ShareMode, flags, requestedDuration, requestedDuration, waveFormat, Guid.Empty);
}
// Create the Wait Event Handle
frameEventWaitHandle = new AutoResetEvent(false);
audioClient.SetEventHandle(frameEventWaitHandle.SafeWaitHandle.DangerousGetHandle());
}
else
{
// Normal setup for both sharedMode
audioClient.Initialize(ShareMode, streamFlags, requestedDuration, 0, waveFormat, Guid.Empty);
}
int bufferFrameCount = audioClient.BufferSize;
bytesPerFrame = waveFormat.Channels * waveFormat.BitsPerSample / 8;
recordBuffer = new byte[bufferFrameCount * bytesPerFrame];
captureState = CaptureState.Initialized;
}
catch (Exception ex)
{
logger.Error(ex);
CleanUp();
throw;
}
}
