public void Start()
{
lock (mutex)
{
if (!isInited)
{
throw new InvalidOperationException("Not initialized - call Setup first");
}
if (isStarted)
{
return;
}
int hr = audioClient.Start();
if (hr != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
samplesRead = 0;
samplesWritten = 0;
thread = new Thread(RunThread);
thread.IsBackground = true;
thread.Priority = ThreadPriority.AboveNormal;
thread.Start();
isStarted = true;
}
}
/// <summary>
/// The Initialize Audio Client
/// </summary>
/// <param name="audioFlow"></param>
/// <param name="_deviceEnumerator"></param>
private void InitializeAudioClient()
{
//Get Audio Client from device
COMResult result = _audioDevice.Activate(typeof(IAudioClient).GUID, 0, IntPtr.Zero, out object obj);
_audioClient = (IAudioClient)obj;
//Get Audio Meter from device
result = _audioDevice.Activate(typeof(IAudioMeterInformation).GUID, 0, IntPtr.Zero, out obj);
_audioMeter = (IAudioMeterInformation)obj;
//Get Audio End Point
result = _audioDevice.Activate(typeof(IAudioEndpointVolume).GUID, 0, IntPtr.Zero, out obj);
_audioEndpointVolume = (IAudioEndpointVolume)obj;
_audioEndpointVolume.RegisterControlChangeNotify(classCallBack);
//Initialize Audio Client.
_sessionGuid = new Guid();
result = _audioClient.GetMixFormat(out waveFormat);
AudioClientStreamFlags streamFlag = AudioClientStreamFlags.None;
if (_audioDataFlow == AudioDataFlow.eRender)
{
streamFlag = AudioClientStreamFlags.Loopback;
}
result = _audioClient.Initialize(AudioClientMode.Shared, streamFlag, 10000000, 0, waveFormat, ref _sessionGuid);
result = _audioClient.Start();
//Change wave format here
SetupWaveFormat(waveFormat);
result = _audioEndpointVolume.GetChannelCount(out _channelCount);
}
private void InitializeAudio(AudioDataFlow audioFlow, IMMDeviceEnumerator deviceEnumerator)
{
//Get Audio Device
COMResult result = deviceEnumerator.GetDefaultAudioEndpoint(audioFlow, EndPointRole.eMultimedia, out _audioDevice);
//Register End point notification
_notifyClient = new MMNotificationClient();
result = deviceEnumerator.RegisterEndpointNotificationCallback(_notifyClient);
//Get Audio Client from device
result = _audioDevice.Activate(typeof(IAudioClient).GUID, 0, IntPtr.Zero, out object obj);
_audioClient = (IAudioClient)obj;
//Get Audio Meter from device
result = _audioDevice.Activate(typeof(IAudioMeterInformation).GUID, 0, IntPtr.Zero, out obj);
_audioMeter = (IAudioMeterInformation)obj;
//Initialize Audio Client.
_sessionGuid = new Guid();
result = _audioClient.GetMixFormat(out waveFormat);
AudioClientStreamFlags streamFlag = AudioClientStreamFlags.None;
if (audioFlow == AudioDataFlow.eRender)
{
streamFlag = AudioClientStreamFlags.Loopback;
}
result = _audioClient.Initialize(AudioClientMode.Shared, streamFlag, 10000000, 0, waveFormat, ref _sessionGuid);
//Get Capture Client.
result = _audioClient.GetService(typeof(IAudioCaptureClient).GUID, out obj);
Marshal.ThrowExceptionForHR((int)result);
_audioCaptureClient = (IAudioCaptureClient)obj;
result = _audioClient.Start();
//Change wave format here
SetupWaveFormat(waveFormat);
}
public void Start()
{
if (!_isStarted)
{
Marshal.ThrowExceptionForHR(_RealClient.Start());
}
_isStarted = true;
}
public void Start()
{
Initialized = true;
int error = AudioClient.Start();
if (error != 0)
{
Win32Platform.CheckError($"Couldn't start a layer context of device {Parent.Name}.", true);
}
Started = true;
}
/// <summary>
/// Starts the audio stream
/// </summary>
public void Start()
{
try
{
audioClientInterface.Start();
}
catch (COMException ex)
{
FeenPhone.Audio.AudioEvents.InvokeOnAudioDeviceException(this, ex);
throw;
}
}
public override void Start()
{
lock (this)
{
IntPtr pBuffer;
int count = _Stream.Read(_FullBuffer, 0, (int)_BufferFrameCount * _FrameSize);
Console.WriteLine(count / _FrameSize);
if (count > 0)
{
_IAudioRenderClient.GetBuffer(count / _FrameSize, out pBuffer);
System.Runtime.InteropServices.Marshal.Copy(_FullBuffer, 0, pBuffer, count);
_IAudioRenderClient.ReleaseBuffer(count / _FrameSize, 0);
}
_IAudioClient.Start();
_Thread.Start();
}
}
private void StartSilenceGeneration()
{
IntPtr mixFormatPtr = IntPtr.Zero;
try
{
Checked(_endpoint.Activate(ref IAudioClientId, ClsCtxEnum.All, IntPtr.Zero, out var obj), "Silence.Activate");
_audioClientForRendering = (IAudioClient)obj;
Checked(_audioClientForRendering.GetMixFormat(out mixFormatPtr), "Silence.GetMixFormat");
WaveFormatEx format = (WaveFormatEx)Marshal.PtrToStructure(mixFormatPtr, typeof(WaveFormatEx));
CheckFormat(format);
Checked(_audioClientForRendering.Initialize(AudioClientShareModeEnum.Shared, AudioClientStreamFlagsEnum.None, 10_000_000 * 5, 0, mixFormatPtr, Guid.Empty), "Silence.Initialize");
Checked(_audioClientForRendering.GetBufferSize(out var bufferSize), "Silence.GetBufferSize");
Checked(_audioClientForRendering.GetService(IAudioRenderClientId, out var renderObj), "Silence.GetService");
_audioRenderClient = (IAudioRenderClient)renderObj;
Checked(_audioClientForRendering.Start(), "Silence.Start");
_silenceThread = new Thread(() => SilenceGenerationRoutine(bufferSize, format));
_silenceThread.Name = "Silence generator";
_silenceThread.Start();
}
catch (Exception e)
{
ReleaseComObject(ref _audioClientForRendering);
ReleaseComObject(ref _audioRenderClient);
Core.LogError(e, "Faied to StartSilenceGeneration");
}
finally
{
if (mixFormatPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(mixFormatPtr);
}
}
}
/// <summary>
/// Starts the audio stream
/// </summary>
public void Start()
{
audioClientInterface.Start();
}
public void recordingloop()
{
uint packetLength;
uint numFramesAvailable;
uint flags;
ulong junk1;
ulong junk2;
byte[] pData;
uint AUDCLNT_BUFFERFLAGS_SILENT = 2;
uint bytespersample = (uint)(waveformat.nChannels * waveformat.wBitsPerSample / 8);
WaveFormat _wf = new WaveFormat((int)waveformat.nSamplesPerSec, (int)waveformat.wBitsPerSample, (int)waveformat.nChannels);
BE_CONFIG _mp3config = new BE_CONFIG(_wf);
Mp3Writer _mp3writer = new Mp3Writer(memStream, _wf, _mp3config);
int retVal = iAudioClient.Start();
if (retVal != 0)
{
throw new Exception("IAudioClient.Start()");
}
keepgoing = true;
while (keepgoing)
{
Thread.Sleep((int)(hnsActualDuration / 5000));
retVal = iAudioCaptureClient.GetNextPacketSize(out packetLength);
if (retVal != 0)
{
throw new Exception("iAudioCaptureClient.GetNextPacketSize()");
}
while (packetLength != 0)
{
IntPtr dataPtr = IntPtr.Zero;
retVal = iAudioCaptureClient.GetBuffer(out dataPtr, out numFramesAvailable, out flags, out junk1, out junk2);
if (retVal != 0)
{
throw new Exception("iAudioCaptureClient.GetBuffer()");
}
pData = new byte[bytespersample * numFramesAvailable];
if ((flags & AUDCLNT_BUFFERFLAGS_SILENT) != 0)
{
for (int i = 0; i < pData.Length; i++)
{
pData[i] = 0;
}
}
else
{
Marshal.Copy(dataPtr, pData, 0, (int)(bytespersample * numFramesAvailable));
}
retVal = iAudioCaptureClient.ReleaseBuffer(numFramesAvailable);
if (retVal != 0)
{
throw new Exception("iAudioCaptureClient.ReleaseBuffer()");
}
lock (synclock)
{
_mp3writer.Write(pData, 0, pData.Length);
}
if (notify != null)
{
notify();
}
retVal = iAudioCaptureClient.GetNextPacketSize(out packetLength);
if (retVal != 0)
{
throw new Exception("iAudioCaptureClient.GetNextPacketSize()");
}
}
}
_mp3writer.Close();
memStream.Close();
memStream.Dispose();
if (iAudioClient != null)
{
retVal = iAudioClient.Stop();
if (retVal != 0)
{
throw new Exception("iAudioClient.Stop()");
}
}
}
/*
* [PreserveSig]
* int GetMixFormat([Out] out WaveFormatExtensible format);
*/
public void Start()
{
_realAudioClient.Start();
}
public WaveFormatEx Open()
{
StopSilenceThread();
Log.Information("Opening DesktopAudio");
IMMDeviceEnumerator deviceEnumerator = null;
IntPtr mixFormatPtr = IntPtr.Zero;
try
{
bool render = true;
deviceEnumerator = Activator.CreateInstance(typeof(MMDeviceEnumerator)) as IMMDeviceEnumerator;
var res = deviceEnumerator.GetDefaultAudioEndpoint(
render ? DataFlowEnum.Render : DataFlowEnum.Capture,
render ? RoleEnum.Console : RoleEnum.Communications,
out _endpoint);
if (render)
{
StartSilenceGeneration();
}
Checked(_endpoint.Activate(ref IAudioClientId, ClsCtxEnum.All, IntPtr.Zero, out var obj), "Activate");
_audioClient = (IAudioClient)obj;
Checked(_audioClient.GetMixFormat(out mixFormatPtr), "GetMixFormat");
WaveFormatEx outputFormat = (WaveFormatEx)Marshal.PtrToStructure(mixFormatPtr, typeof(WaveFormatEx));
if (!render) // for render it is checked in the StartSilenceGeneration();
{
CheckFormat(outputFormat);
}
_bytesPerFrame = outputFormat.BlockAlign;
var flags = AudioClientStreamFlagsEnum.StreamFlagsEventCallback | (render ? AudioClientStreamFlagsEnum.StreamFlagsLoopback : AudioClientStreamFlagsEnum.None);
Checked(_audioClient.Initialize(AudioClientShareModeEnum.Shared, flags, 10_000_000 * 5, 0, mixFormatPtr, Guid.Empty), "Initialize");
Checked(_audioClient.GetService(IAudioCaptureClientId, out var captureObj), "GetService");
_audioCaptureClient = (IAudioCaptureClient)captureObj;
#pragma warning disable CS0618 // Type or member is obsolete
Checked(_audioClient.SetEventHandle(_dataAvailable.Handle), "SetEventHandle");
#pragma warning restore CS0618 // Type or member is obsolete
Checked(_audioClient.Start(), "Start");
return(outputFormat);
}
catch (Exception e)
{
Core.LogError(e, "Open desktop audio failed");
StopSilenceThread();
ReleaseComFields();
throw;
}
finally
{
if (mixFormatPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(mixFormatPtr);
}
ReleaseComObject(ref deviceEnumerator);
}
}
