private void InitAudioCapture()
{
// Configuramos DirectSound
device = new Device();
device.SetCooperativeLevel(this, CooperativeLevel.Normal);
capture = new Capture(record_source);
// Creamos Waveformat
waveFormat = new WaveFormat
{
BitsPerSample = bitsPerSample, // 16 bits
BlockAlign = (short)(channels * (bitsPerSample / (short)8)),
Channels = channels, // Stereo
AverageBytesPerSecond = (short)(channels * (bitsPerSample / (short)8)) * samplesPerSecond, // 22kHz
SamplesPerSecond = samplesPerSecond, // 22kHz
FormatTag = WaveFormatTag.Pcm
};
captureBuffDesc = new CaptureBufferDescription
{
BufferBytes = waveFormat.AverageBytesPerSecond / 5,
Format = waveFormat
};
bufferDesc = new BufferDescription
{
BufferBytes = waveFormat.AverageBytesPerSecond / 5,
Format = waveFormat
};
bufferplayback = new SecondaryBuffer(bufferDesc, device);
buffersize = captureBuffDesc.BufferBytes;
}
WaveFormat TryNewFormat(int hz, short bits, short channels)
{
WaveFormat format = new WaveFormat();
format.FormatTag = WaveFormatTag.Pcm;
format.SamplesPerSecond = hz;
format.BitsPerSample = bits;
format.Channels = channels;
format.BlockAlign = (short)(format.Channels * (format.BitsPerSample / 8));
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond;
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
CaptureBuffer pDSCaptureBuffer = null;
dscheckboxd.BufferBytes = format.AverageBytesPerSecond;
dscheckboxd.Format = format;
try
{
pDSCaptureBuffer = new CaptureBuffer(dscheckboxd, device);
pDSCaptureBuffer.Dispose();
return(format);
}
catch
{
// Can't return null, because WaveFormat is a value type.
throw;
}
}
private void CreateCaptureBuffer()
{
// 缓冲区的描述对象
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
if (null != mNotify)
{
mNotify.Dispose();
mNotify = null;
}
if (null != mRecBuffer)
{
mRecBuffer.Dispose();
mRecBuffer = null;
}
// 设定通知的大小,默认为1s钟
mNotifySize = (1024 > mWavFormat.AverageBytesPerSecond / 8) ? 1024 : (mWavFormat.AverageBytesPerSecond / 8);
mNotifySize -= mNotifySize % mWavFormat.BlockAlign;
// 设定缓冲区大小
mBufferSize = mNotifySize * cNotifyNum;
// 创建缓冲区描述
bufferdescription.BufferBytes = mBufferSize;
bufferdescription.Format = mWavFormat; // 录音格式
// 创建缓冲区
mRecBuffer = new CaptureBuffer(bufferdescription, mCapDev);
mNextCaptureOffset = 0;
}
public void StartRecording(int deviceIndex)
{
if (mCaptureBuffer != null)
{
if (mCaptureBuffer.Capturing)
{
mCaptureBuffer.Stop();
}
mCaptureBuffer.Dispose();
mCaptureBuffer = null;
}
CaptureDevicesCollection audioDevices = new CaptureDevicesCollection();
if (deviceIndex != -1 && deviceIndex < audioDevices.Count - 1)
{
// initialize the capture buffer and start the animation thread
Capture capture = new Capture(audioDevices[deviceIndex].DriverGuid);
CaptureBufferDescription captureBufferDescription = new CaptureBufferDescription();
WaveFormat waveFormat = new WaveFormat();
waveFormat.BitsPerSample = 16;
waveFormat.SamplesPerSecond = 8000;
waveFormat.Channels = 1;
waveFormat.BlockAlign = (short)(waveFormat.Channels * waveFormat.BitsPerSample / 8);
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * waveFormat.SamplesPerSecond;
waveFormat.FormatTag = WaveFormatTag.Pcm;
captureBufferDescription.Format = waveFormat;
captureBufferDescription.BufferBytes = waveFormat.SamplesPerSecond * 120;
mCaptureBuffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(captureBufferDescription, capture);
mCaptureBuffer.Start(true);
}
}
public static void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond)
{
device = new Device();
device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal);
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
DeviceInformation deviceInfo = captureDeviceCollection[deviceID];
capture = new Capture(deviceInfo.DriverGuid);
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBufferDescription.GlobalFocus = true;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
}
private void UDP_Initialize()
{
try {
device = new Device();
device.SetCooperativeLevel(this, CooperativeLevel.Normal);
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
DeviceInformation deviceInfo = captureDeviceCollection[0];
capture = new Capture(deviceInfo.DriverGuid);
short channels = 1; //Stereo.
short bitsPerSample = 16; //16Bit, alternatively use 8Bits.
int samplesPerSecond = 22050; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc.
//Set up the wave format to be captured.
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data.
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
bIsCallActive = false;
nUdpClientFlag = 0;
//Using UDP sockets
clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
EndPoint ourEP = new IPEndPoint(IPAddress.Any, 9450);
//Listen asynchronously on port 1450 for coming messages (Invite, Bye, etc).
clientSocket.Bind(ourEP);
//Receive data from any IP.
EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
byteData = new byte[1024];
//Receive data asynchornously.
clientSocket.BeginReceiveFrom(byteData,
0, byteData.Length,
SocketFlags.None,
ref remoteEP,
new AsyncCallback(UDP_OnReceive),
null);
} catch (Exception ex) {
MessageBox.Show(ex.Message, "VoiceChat-Initialize ()", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public float GetSignFromDevice(out float response)
{
cap = new Capture(deviceGuid);
desc = new CaptureBufferDescription();
WaveFormat wf = new WaveFormat();
wf.BitsPerSample = bitsPerSample;
wf.SamplesPerSecond = sampleRate;
wf.Channels = channels;
wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond;
wf.FormatTag = WaveFormatTag.Pcm;
desc.Format = wf;
desc.BufferBytes = SAMPLES * wf.BlockAlign;
buffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(desc, cap);
buffer.Start(true);
while (start)
{
Array samples = buffer.Read(0, typeof(Int16), LockFlag.FromWriteCursor, SAMPLE_FORMAT_ARRAY);
response = ((float)samples.GetValue(0, 0, 0)) / 100;
}
response = 0.0f;
return(0.0f);
}
/// <summary>
/// Pequeno teste conceitual utilizando a placa de som padrao
/// </summary>
public void teste()
{
Capture cap = new Capture(new DeviceInformation().DriverGuid);
CaptureBufferDescription desc = new CaptureBufferDescription();
CaptureBuffer buffer;
WaveFormat wf = new WaveFormat();
wf.BitsPerSample = 16;
wf.SamplesPerSecond = 44100;
wf.Channels = 2;
wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond;
wf.FormatTag = WaveFormatTag.Pcm;
desc.Format = wf;
desc.BufferBytes = SAMPLES * wf.BlockAlign;
buffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(desc, cap);
buffer.Start(true);
zed:
Array samples = buffer.Read(0, typeof(Int16), LockFlag.FromWriteCursor, SAMPLE_FORMAT_ARRAY);
System.Console.WriteLine(samples.GetValue(0, 0, 0).ToString());
goto zed;
}
// Helper method to test a specific WaveFormat instance.
private void VerifyFormat(WaveFormat newFormat)
{
if (this._captureDevice == null)
{
throw new InvalidOperationException("Capture device is null.");
}
CaptureBufferDescription capBuffDesc = new CaptureBufferDescription();
capBuffDesc.BufferBytes = newFormat.AverageBytesPerSecond;
capBuffDesc.Format = newFormat;
CaptureBuffer capBuff = null;
try
{
capBuff = new CaptureBuffer(capBuffDesc, this._captureDevice);
}
catch (Exception ex)
{
string errMsg =
string.Format("Sound format not supported: {0} samples/sec, {1} bits/sample, {2} channels.",
newFormat.SamplesPerSecond, newFormat.BitsPerSample, newFormat.Channels);
throw new Exception(errMsg, ex);
}
if (capBuff != null)
{
capBuff.Dispose();
capBuff = null;
}
}
public void StartCapture(int sampleRate, Capture captureDevice)
{
StopCapture();
EmptyRequest();
this.sampleRate = sampleRate;
readPos = 0;
IsRecording = false;
record = null;
recordTime = 0;
noRecordTime = 0;
lastSample = null;
lastSize = 0;
capture = (captureDevice == null) ? new Capture() : captureDevice;
WaveFormat waveFormat = new WaveFormat();// Load the sound
waveFormat.BitsPerSample = 16;
waveFormat.BlockAlign = 2;
waveFormat.Channels = 1;
waveFormat.AverageBytesPerSecond = sampleRate * 2;
waveFormat.SamplesPerSecond = sampleRate;
waveFormat.FormatTag = WaveFormatTag.Pcm;
CaptureBufferDescription captureBuffDesc = new CaptureBufferDescription();
captureBuffDesc.BufferBytes = bufferSize;
captureBuffDesc.Format = waveFormat;
captureBuffer = new CaptureBuffer(captureBuffDesc, capture);
captureBuffer.Start(true);
captureThread = new Thread(captureLoop);
captureThread.Start();
new Thread(EmptyRequest).Start();
}
public void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond)
{
// Установка голосовых устройств
_device = new Device(); // Звуковое устройство ввода
_device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal); // Установить форму приложения и приоритет
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); // Получить доступ к устройству (звуковая карта)
DeviceInformation deviceInfo = captureDeviceCollection[deviceID]; // установить номер устройства
_capture = new Capture(deviceInfo.DriverGuid); //Получить информация о драйвере выбранного устройства
//Настроить wave формат для захвата.
_waveForm = new WaveFormat(); // Объявление формата
_waveForm.Channels = channels; // Каналы
_waveForm.FormatTag = WaveFormatTag.Pcm; // PCM - Pulse Code Modulation
_waveForm.SamplesPerSecond = samplesPerSecond; // установить число образцов в секунду
_waveForm.BitsPerSample = bitsPerSample; // Установить колличество бит на образец
_waveForm.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); // данных в одном байте, 1 * (16/8) = 2 bits
_waveForm.AverageBytesPerSecond = _waveForm.BlockAlign * samplesPerSecond; // байт в секунду 22050*2= 44100
_capBufDescr = new CaptureBufferDescription();
_capBufDescr.BufferBytes = _waveForm.AverageBytesPerSecond / 5; // 200 милисекунд для записи = 8820 бит
_capBufDescr.Format = _waveForm; // Using Wave Format
// воспроизведение
_playbackBufferDescription = new BufferDescription();
_playbackBufferDescription.BufferBytes = _waveForm.AverageBytesPerSecond / 5; // воспроизведение - 200 милисекунд = 8820 Bит
_playbackBufferDescription.Format = _waveForm;
_playbackBuffer = new SecondaryBuffer(_playbackBufferDescription, _device);
_bufferSize = _capBufDescr.BufferBytes;
}
static void InicialiceCaptureBuffer()
{
try
{
CaptureDevicesCollection audioDevices = new CaptureDevicesCollection();
// initialize the capture buffer and start the animation thread
Capture cap = new Capture(audioDevices[1].DriverGuid);
CaptureBufferDescription desc = new CaptureBufferDescription();
WaveFormat wf = new WaveFormat();
wf.BitsPerSample = 16;
wf.SamplesPerSecond = 44100;
wf.Channels = (short)cap.Caps.Channels;
wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond;
wf.FormatTag = WaveFormatTag.Pcm;
desc.Format = wf;
desc.BufferBytes = SAMPLES * wf.BlockAlign;
buffer = new CaptureBuffer(desc, cap);
buffer.Start(true);
}
catch
{
Console.WriteLine("Error al iniciar el capturador de sonido");
}
}
public void SetVoiceDevices(int deviceID, short channels, short bitsPerSample, int samplesPerSecond)
{
// Installization Voice Devices
device = new Device(); // Sound Input Device
device.SetCooperativeLevel(new System.Windows.Forms.Control(), CooperativeLevel.Normal); // Set The Application Form and Priority
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection(); // To Get Available Devices (Input Sound Card)
DeviceInformation deviceInfo = captureDeviceCollection[deviceID]; // Set Device Number
capture = new Capture(deviceInfo.DriverGuid); // Get The Selected Device Driver Information
//Set up the wave format to be captured.
waveFormat = new WaveFormat(); // Wave Format declaration
waveFormat.Channels = channels; // Channels (2 if Stereo)
waveFormat.FormatTag = WaveFormatTag.Pcm; // PCM - Pulse Code Modulation
waveFormat.SamplesPerSecond = samplesPerSecond; // The Number of Samples Peer One Second
waveFormat.BitsPerSample = bitsPerSample; // The Number of bits for each sample
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8)); // Minimum atomic unit of data in one byte, Ex: 1 * (16/8) = 2 bits
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond; // required Bytes-Peer-Second Ex. 22050*2= 44100
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; //Ex. 200 milliseconds of PCM data = 8820 Bytes (In Record)
captureBufferDescription.Format = waveFormat; // Using Wave Format
// Playback
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5; //Ex. 200 milliseconds of PCM data = 8820 Bytes (In Playback)
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
}
public void CreateCaptureBuffer()
{//想要创建一个捕捉缓冲区必须要两个参数：缓冲区信息（描述这个缓冲区中的格式等），缓冲设备。
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
bufferdescription.Format = mWavFormat; //设置缓冲区要捕捉的数据格式
iNotifySize = 1024; //设置通知大小
iBufferSize = iNotifyNum * iNotifySize;
bufferdescription.BufferBytes = iBufferSize;
capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象
}
private void InitializeBuffer()
{
CaptureBufferDescription bd = new CaptureBufferDescription();
bd.Format = getWaveFormat();
mBufferLength = (int)getPositionEquivalent(new TimeSpan(BUFFER_MS * TimeSpan.TicksPerMillisecond));
bd.BufferBytes = mBufferLength;
mBuffer = new CaptureBuffer(bd, mRecordCapture);
mCycleCount = 0;
}
private void CreateCaptureBuffer()
{
//To create a capture buffer, you must have two parameters:
//the buffer information (describing the format in this buffer, etc.), the buffer device.
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
bufferdescription.Format = mWavFormat; //Sets the data format to be captured by the buffer
iNotifySize = 1024; //Set the notification size
iBufferSize = iNotifyNum * iNotifySize;
bufferdescription.BufferBytes = iBufferSize;
capturebuffer = new CaptureBuffer(bufferdescription, capture);//Create a device buffer object
}
/*
* Initializes all the data members.
*/
private void Initialize()
{
try
{
device = new Device();
device.SetCooperativeLevel(this, CooperativeLevel.Normal);
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
DeviceInformation deviceInfo = captureDeviceCollection[0];
capture = new Capture(deviceInfo.DriverGuid);
short channels = 1; //Stereo.
short bitsPerSample = 16; //16Bit, alternatively use 8Bits.
int samplesPerSecond = 44100; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc.
//Set up the wave format to be captured.
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond;//approx 200 milliseconds of PCM data.
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
bIsCallActive = false;
nUdpClientFlag = 0;
speaker = new Speakers();
speaker.Mono = true;
Volume vol;
vol = Volume.Min;
}
catch (Exception ex)
{
MessageBox.Show("Audio device(s) missing", "VCES - Audio device error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
/// <summary>
/// 创建捕捉缓冲区对象
/// </summary>
private void CreateCaptureBuffer()
{
//想要创建一个捕捉缓冲区必须要两个参数：缓冲区信息（描述这个缓冲区中的格式等），缓冲设备。
WaveFormat mWavFormat = SetWaveFormat();
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
bufferdescription.Format = mWavFormat; //设置缓冲区要捕捉的数据格式
iNotifySize = mWavFormat.AverageBytesPerSecond / iNotifyNum; //1秒的数据量/设置的通知数得到的每个通知大小小于0.2s的数据量，话音延迟小于200ms为优质话音
iBufferSize = iNotifyNum * iNotifySize;
bufferdescription.BufferBytes = iBufferSize;
bufferdescription.ControlEffects = true;
bufferdescription.WaveMapped = true;
capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象
}
public AudioCapture()
{
try
{
directSoundCapture = new DirectSoundCapture();
}
catch
{
throw new AudioCaptureException("Could not open recording device");
}
//var directSoundCaps = directSoundCapture.Capabilities;
// Default 44.1kHz 16-bit stereo PCM
waveFormat = new WaveFormat();
// Set the buffer size.
// Note that the buffer position will roll over to 0 when the buffer fills up,
// so set the notification position's offset to one less than the buffer size.
bufferSize = waveFormat.ConvertLatencyToByteSize(latency);
numberOfSamples = bufferSize / waveFormat.BlockAlign;
// Create audio capture buffer
captureBufferDesc = new CaptureBufferDescription();
captureBufferDesc.Format = waveFormat;
captureBufferDesc.BufferBytes = bufferSize;
captureBuffer = new CaptureBuffer(directSoundCapture, captureBufferDesc);
// Wait events allow the thread to wait asynchronously for the buffer to fill
var evt = new AutoResetEvent(false);
fullEvent = new WaitHandle[] { evt };
// Notify the thread when the buffer is full
var nf = new NotificationPosition();
nf.Offset = bufferSize - 1;
nf.WaitHandle = fullEvent[0];
var nfs = new NotificationPosition[] { nf };
captureBuffer.SetNotificationPositions(nfs);
// Start the processing thread
thread = new Thread(new ThreadStart(Process));
thread.IsBackground = true; // Allow application to exit
thread.Start();
}
public bool Initialize(Form MainForm, string Names)
{
checked
{
try
{
NamesPhone = Names;
device = new Device();
device.SetCooperativeLevel(MainForm, CooperativeLevel.Normal);
CaptureDevicesCollection captureDevicesCollection = new CaptureDevicesCollection();
cap = new Capture(captureDevicesCollection[0].DriverGuid);
short num = 1;
short num2 = 16;
int num3 = 22050;
waveFormat = new WaveFormat();
waveFormat.Channels = num;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = num3;
waveFormat.BitsPerSample = num2;
waveFormat.BlockAlign = (short)Math.Round(unchecked ((double)num * ((double)num2 / 8.0)));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * num3;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = (int)Math.Round(unchecked ((double)waveFormat.AverageBytesPerSecond / 5.0));
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = (int)Math.Round(unchecked ((double)waveFormat.AverageBytesPerSecond / 5.0));
playbackBufferDescription.Format = waveFormat;
playbackBufferDescription.ControlEffects = true;
playbackBufferDescription.GlobalFocus = true;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
Thread thread = new Thread(Process);
thread.Start();
}
catch (Exception ex)
{
ProjectData.SetProjectError(ex);
Exception ex2 = ex;
bool result = false;
ProjectData.ClearProjectError();
return(result);
}
return(true);
}
}
/// <summary>
/// Creates a capture buffer and sets the format
/// </summary>
private void CreateCaptureBuffer()
{
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
if (null != applicationNotify)
{
applicationNotify.Dispose();
applicationNotify = null;
}
if (null != applicationBuffer)
{
applicationBuffer.Dispose();
applicationBuffer = null;
}
if (0 == InputFormat.Channels)
{
throw new ArgumentException("Audio Channels cannot be zero (use 1 - mono, 2 - stereo, etc.).");
}
// Set the notification size
notifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8);
notifySize -= notifySize % InputFormat.BlockAlign;
// Set the buffer sizes
captureBufferSize = notifySize * NumberRecordNotifications;
// Create the capture buffer
dscheckboxd.BufferBytes = captureBufferSize;
dscheckboxd.Format = InputFormat; // Set the format during creation
try
{
applicationBuffer = new CaptureBuffer(dscheckboxd, applicationDevice);
}
catch (ApplicationException)
{
//Yeah, I know, D i r e c t X managed...
throw new ApplicationException("The sound capturing device is not ready. Is '" + CaptureDevice + "' plugged in?");
}
nextCaptureOffset = 0;
InitDirectSoundNotifications();
}
/// <summary>
/// Setup the buffer and notifications. Needs to be called after the
/// format has been setup.
/// </summary>
public void createRecordBuffer()
{
// Create the recordBufferDesciption to be used
CaptureBufferDescription recordBufferDescription = new CaptureBufferDescription();
// Setup the pre-calculated buffer size
recordBufferDescription.BufferBytes = _recordBufferSize;
// Set the record buffer to the format which has been pre-defined
recordBufferDescription.Format = _recordFormat;
// Setup an instance of the capture buffer using the previously
// formed description and the default capture device (as created in the
// createCaptureDevice method)
_recordBuffer = new CaptureBuffer(recordBufferDescription, captureDevice);
// Now the buffer is setup, its time to config setup the notifications
setupNotifications();
}
public void Init()
{
mCurrentDeviceName = mAudioDevices[mCurrentDeviceIndex].Description;
Microsoft.DirectX.DirectSound.Capture audioCapture = new Capture(mAudioDevices[mCurrentDeviceIndex].DriverGuid);
Microsoft.DirectX.DirectSound.CaptureBufferDescription audioCaptureDescription = new CaptureBufferDescription();
Microsoft.DirectX.DirectSound.WaveFormat audioFormat = new WaveFormat();
audioFormat.BitsPerSample = (short)(mChannels * 8);
audioFormat.SamplesPerSecond = 44100;
audioFormat.Channels = (short)mChannels;
audioFormat.BlockAlign = (short)(mChannels * audioFormat.BitsPerSample / 8);
audioFormat.AverageBytesPerSecond = audioFormat.BlockAlign * audioFormat.SamplesPerSecond;
audioFormat.FormatTag = WaveFormatTag.Pcm;
audioCaptureDescription.Format = audioFormat;
audioCaptureDescription.BufferBytes = mSamples * audioFormat.BlockAlign;
mAudioBuffer = new CaptureBuffer(audioCaptureDescription, audioCapture);
mIsRunning = false;
}
private void ScanAvailableInputFormats()
{
//-----------------------------------------------------------------------------
// Name: ScanAvailableInputFormats()
// Desc: Tests to see if 20 different standard wave formats are supported by
// the capture device
//-----------------------------------------------------------------------------
WaveFormat format = new WaveFormat();
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
CaptureBuffer pDSCaptureBuffer = null;
// This might take a second or two, so throw up the hourglass
Cursor = Cursors.WaitCursor;
format.FormatTag = WaveFormatTag.Pcm;
// Try 20 different standard formats to see if they are supported
for (int iIndex = 0; iIndex < 20; iIndex++)
{
GetWaveFormatFromIndex(iIndex, ref format);
// To test if a capture format is supported, try to create a
// new capture buffer using a specific format. If it works
// then the format is supported, otherwise not.
dscheckboxd.BufferBytes = format.AverageBytesPerSecond;
dscheckboxd.Format = format;
try
{
pDSCaptureBuffer = new CaptureBuffer(dscheckboxd, mf.applicationDevice);
InputFormatSupported[iIndex] = true;
}
catch
{
InputFormatSupported[iIndex] = false;
}
if (pDSCaptureBuffer != null)
{
pDSCaptureBuffer.Dispose();
}
}
Cursor = Cursors.Default;
}
/// <summary>
/// Starts capture process.
/// </summary>
public void Start()
{
EnsureIdle();
isCapturing = true;
WaveFormat format = new WaveFormat();
format.Channels = ChannelCount;
format.BitsPerSample = BitsPerSample;
format.SamplesPerSecond = SampleRate;
format.FormatTag = WaveFormatTag.Pcm;
format.BlockAlign = (short)((format.Channels * format.BitsPerSample + 7) / 8);
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond;
bufferLength = format.AverageBytesPerSecond * BufferSeconds;
CaptureBufferDescription desciption = new CaptureBufferDescription();
desciption.Format = format;
desciption.BufferBytes = bufferLength;
capture = new Capture(device.Id);
buffer = new CaptureBuffer(desciption, capture);
int waitHandleCount = BufferSeconds * NotifyPointsInSecond;
BufferPositionNotify[] positions = new BufferPositionNotify[waitHandleCount];
for (int i = 0; i < waitHandleCount; i++)
{
BufferPositionNotify position = new BufferPositionNotify();
position.Offset = (i + 1) * bufferLength / positions.Length - 1;
position.EventNotifyHandle = positionEventHandle.DangerousGetHandle();
positions[i] = position;
}
notify = new Notify(buffer);
notify.SetNotificationPositions(positions);
terminated.Reset();
thread = new Thread(new ThreadStart(ThreadLoop));
thread.Name = "Sound capture";
thread.Start();
}
void CreateCaptureBuffer()
{
//-----------------------------------------------------------------------------
// Name: CreateCaptureBuffer()
// Desc: Creates a capture buffer and sets the format
//-----------------------------------------------------------------------------
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
if (null != notify)
{
notify.Dispose();
notify = null;
}
if (null != buffer)
{
buffer.Dispose();
buffer = null;
}
if (0 == selectedFormat.Channels)
{
return;
}
// Set the notification size
notifySize = (1024 > selectedFormat.AverageBytesPerSecond / 8) ? 1024 : (selectedFormat.AverageBytesPerSecond / 8);
notifySize -= notifySize % selectedFormat.BlockAlign;
// Set the buffer sizes
captureBufferSize = notifySize * NumberRecordNotifications;
// Create the capture buffer
dscheckboxd.BufferBytes = captureBufferSize;
selectedFormat.FormatTag = WaveFormatTag.Pcm;
dscheckboxd.Format = selectedFormat; // Set the format during creatation
buffer = new CaptureBuffer(dscheckboxd, selectedDevice);
nextCaptureOffset = 0;
InitNotifications();
}
void CreateCaptureBuffer()
{
//-----------------------------------------------------------------------------
// Name: CreateCaptureBuffer()
// Desc: Creates a capture buffer and sets the format
//-----------------------------------------------------------------------------
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
if (null != applicationNotify)
{
applicationNotify.Dispose();
applicationNotify = null;
}
if (null != applicationBuffer)
{
applicationBuffer.Dispose();
applicationBuffer = null;
}
if (0 == InputFormat.Channels)
{
return;
}
// Set the notification size
NotifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8);
NotifySize -= NotifySize % InputFormat.BlockAlign;
// Set the buffer sizes
CaptureBufferSize = NotifySize * NumberRecordNotifications;
// Create the capture buffer
dscheckboxd.BufferBytes = CaptureBufferSize;
InputFormat.FormatTag = WaveFormatTag.Pcm;
dscheckboxd.Format = InputFormat; // Set the format during creatation
applicationBuffer = new CaptureBuffer(dscheckboxd, applicationDevice);
NextCaptureOffset = 0;
InitNotifications();
}
public void CreateCaptureBuffer()
{
// Desc: Creates a capture buffer and sets the format
CaptureBufferDescription dsc = new CaptureBufferDescription();
if (null != applicationNotify)
{
applicationNotify.Dispose();
applicationNotify = null;
}
if (null != applicationBuffer)
{
applicationBuffer.Dispose();
applicationBuffer = null;
}
if (0 == InputFormat.Channels)
{
return;
}
m_iNotifySize = (1024 > InputFormat.AverageBytesPerSecond / 8) ? 1024 : (InputFormat.AverageBytesPerSecond / 8);
m_iNotifySize -= m_iNotifySize % InputFormat.BlockAlign;
// Set the buffer sizes
m_iCaptureBufferSize = m_iNotifySize * NumberRecordNotifications;
//calculate the size of VuMeter Update array length
/*
* m_UpdateVMArrayLength = m_iCaptureBufferSize/ 50 ;
* CalculationFunctions cf = new CalculationFunctions();
* m_UpdateVMArrayLength = Convert.ToInt32 (cf.AdaptToFrame ( Convert.ToInt32 ( m_UpdateVMArrayLength ), m_FrameSize) );
* arUpdateVM = new byte [ m_UpdateVMArrayLength ] ;
*/
// Create the capture buffer
dsc.BufferBytes = m_iCaptureBufferSize;
InputFormat.FormatTag = WaveFormatTag.Pcm;
// Set the format during creatation
dsc.Format = InputFormat;
applicationBuffer = new CaptureBuffer(dsc, this.m_cApplicationDevice);
NextCaptureOffset = 0;
InitNotifications();
}
private void InitCaptureBuffer()
{
if (captureBuffer_ != null)
{
captureBuffer_.Dispose();
captureBuffer_ = null;
}
notifySize_ = (1024 > waveFormat_.AverageBytesPerSecond / 8) ? 1024 : (waveFormat_.AverageBytesPerSecond / 8);
notifySize_ -= notifySize_ % waveFormat_.BlockAlign;
captureBufferSize_ = notifySize_ * NOTIFY_NUM;
CaptureBufferDescription bufferDescription = new CaptureBufferDescription();
bufferDescription.BufferBytes = captureBufferSize_;
bufferDescription.Format = waveFormat_;
captureBuffer_ = new CaptureBuffer(bufferDescription, capture_);
captureOffset_ = 0;
captureDataLength_ = 0;
}
private CaptureBuffer CreateCaptureBuffer(ISource aSource, int aBytes)
{
var format = new WaveFormat
{
SamplesPerSecond = 44100,
BitsPerSample = 16,
Channels = 2,
FormatTag = WaveFormatTag.Pcm,
BlockAlignment = 4,
AverageBytesPerSecond = 44100 * 4 // 2 channels, 2 bytes per sample
};
var desc = new CaptureBufferDescription
{
Format = format,
BufferBytes = aBytes
};
DirectSoundCapture capture = new DirectSoundCapture();
return(new CaptureBuffer(capture, desc));
}
public override void Start()
{
if (this.isCapturing)
{
throw new InvalidOperationException("Capture is in process");
}
this.isCapturing = true;
this.bufferLength = this.Format.AverageBytesPerSecond * bufferSeconds;
CaptureBufferDescription desciption = new CaptureBufferDescription();
desciption.Format = this.Format;
desciption.BufferBytes = bufferLength;
this.captureDevice = new DirectSoundCapture();
this.captureBuffer = new CaptureBuffer(captureDevice, desciption);
int waitHandleCount = bufferSeconds * notifyPointsInSecond;
NotificationPosition[] notificationPositions = new NotificationPosition[waitHandleCount];
for (int i = 0; i < waitHandleCount; i++)
{
NotificationPosition position = new NotificationPosition();
position.Offset = (i + 1) * bufferLength / notificationPositions.Length - 1;
position.Event = positionEvent;
notificationPositions[i] = position;
}
this.captureBuffer.SetNotificationPositions(notificationPositions);
this.terminatedEvent.Reset();
this.captureThread = new Thread(new ThreadStart(this.CaptureLoop));
this.captureThread.Name = "Sound capture";
this.captureThread.Start();
}
// bufferSize is a SAMPLE COUNT
// NOTE: we always capture 16 bits/sample
public WaveCapture(Guid deviceGuid, int Fs, int bufferSize, int timerInterval)
{
CaptureBufferDescription desc = new CaptureBufferDescription();
desc.BufferBytes = bufferSize * 2;
desc.ControlEffects = false;
desc.WaveMapped = true;
desc.Format = new WaveFormat();
desc.Format.FormatTag = SlimDX.WaveFormatTag.Pcm;
desc.Format.SamplesPerSecond = Fs;
desc.Format.Channels = 1;
desc.Format.BitsPerSample = 16;
desc.Format.BlockAlignment = 2;
desc.Format.AverageBytesPerSecond = Fs * 2;
buf = new byte[bufferSize * 2];
capture = new DirectSoundCapture(deviceGuid);
captureBuffer = new CaptureBuffer(capture, desc);
timer = new Timer();
timer.Interval = timerInterval;
timer.Tick += new EventHandler(timer_Tick);
}
private void InicializeCaptureSound()
{
device = new Device();
//device.SetCooperativeLevel(this, CooperativeLevel.Normal);
//CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
//capture = new Capture(captureDeviceCollection[0].DriverGuid);
//DeviceInformation deviceInfo = (DeviceInformation) cmbRecordDevices.SelectedItem; //captureDeviceCollection[0];
capture = new Capture(record_source);
SetWaveFormat();
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data.
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
}
/// <summary>
/// Starts capture process.
/// </summary>
public void Start()
{
EnsureIdle();
isCapturing = true;
WaveFormat format = new WaveFormat();
format.Channels = ChannelCount;
format.BitsPerSample = BitsPerSample;
format.SamplesPerSecond = SampleRate;
format.FormatTag = WaveFormatTag.Pcm;
format.BlockAlign = (short)((format.Channels * format.BitsPerSample + 7) / 8);
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond;
bufferLength = format.AverageBytesPerSecond * BufferSeconds;
CaptureBufferDescription desciption = new CaptureBufferDescription();
desciption.Format = format;
desciption.BufferBytes = bufferLength;
capture = new Capture(device.Id);
buffer = new CaptureBuffer(desciption, capture);
int waitHandleCount = BufferSeconds * NotifyPointsInSecond;
BufferPositionNotify[] positions = new BufferPositionNotify[waitHandleCount];
for (int i = 0; i < waitHandleCount; i++)
{
BufferPositionNotify position = new BufferPositionNotify();
position.Offset = (i + 1) * bufferLength / positions.Length - 1;
position.EventNotifyHandle = positionEventHandle.DangerousGetHandle();
positions[i] = position;
}
notify = new Notify(buffer);
notify.SetNotificationPositions(positions);
terminated.Reset();
thread = new Thread(new ThreadStart(ThreadLoop));
thread.Name = "Sound capture";
thread.Start();
}
private void CreateCaptureBuffer()
{
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
if (null != mNotify)
{
mNotify.Dispose();
mNotify = null;
}
if (null != mRecBuffer)
{
mRecBuffer.Dispose();
mRecBuffer = null;
}
// 设定通知的大小,默认为1s钟
mNotifySize = (1024 > mWavFormat.AverageBytesPerSecond / 8) ? 1024 : (mWavFormat.AverageBytesPerSecond / 8);
mNotifySize -= mNotifySize % mWavFormat.BlockAlign;
// 设定缓冲区大小
mBufferSize = mNotifySize * cNotifyNum;
// 创建缓冲区描述
bufferdescription.BufferBytes = mBufferSize;
bufferdescription.Format = mWavFormat;
// 创建缓冲区
mRecBuffer = new CaptureBuffer(bufferdescription, mCapDev);
mNextCaptureOffset = 0;
}
/// <summary>
/// Worker thread.
/// </summary>
///
private void WorkerThread()
{
// Get the selected capture device
DirectSoundCapture captureDevice = new DirectSoundCapture(device);
// Set the capture format
WaveFormat format = new WaveFormat();
format.Channels = 1;
format.SamplesPerSecond = sampleRate;
format.FormatTag = sampleFormat.ToWaveFormat();
format.BitsPerSample = (short)Signal.GetSampleSize(sampleFormat);
format.BlockAlignment = (short)(format.BitsPerSample / 8);
format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlignment;
// Setup the capture buffer
CaptureBufferDescription captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.Format = format;
captureBufferDescription.BufferBytes = 2 * desiredCaptureSize * format.BlockAlignment;
captureBufferDescription.WaveMapped = true;
captureBufferDescription.ControlEffects = false;
CaptureBuffer captureBuffer = null;
NotificationPosition[] notifications = new NotificationPosition[2];
try
{
captureBuffer = new CaptureBuffer(captureDevice, captureBufferDescription);
// Setup the notification positions
int bufferPortionSize = captureBuffer.SizeInBytes / 2;
notifications[0] = new NotificationPosition();
notifications[0].Offset = bufferPortionSize - 1;
notifications[0].Event = new AutoResetEvent(false);
notifications[1] = new NotificationPosition();
notifications[1].Offset = bufferPortionSize - 1 + bufferPortionSize;
notifications[1].Event = new AutoResetEvent(false);
captureBuffer.SetNotificationPositions(notifications);
// Make a copy of the wait handles
WaitHandle[] waitHandles = new WaitHandle[notifications.Length];
for (int i = 0; i < notifications.Length; i++)
waitHandles[i] = notifications[i].Event;
// Start capturing
captureBuffer.Start(true);
if (sampleFormat == SampleFormat.Format32BitIeeeFloat)
{
float[] currentSample = new float[desiredCaptureSize];
while (!stopEvent.WaitOne(0, true))
{
int bufferPortionIndex = WaitHandle.WaitAny(waitHandles);
captureBuffer.Read(currentSample, 0, currentSample.Length, bufferPortionSize * bufferPortionIndex);
OnNewFrame(currentSample);
}
}
else if (sampleFormat == SampleFormat.Format16Bit)
{
short[] currentSample = new short[desiredCaptureSize];
while (!stopEvent.WaitOne(0, true))
{
int bufferPortionIndex = WaitHandle.WaitAny(waitHandles);
captureBuffer.Read(currentSample, 0, currentSample.Length, bufferPortionSize * bufferPortionIndex);
OnNewFrame(currentSample);
}
}
}
catch (Exception ex)
{
if (AudioSourceError != null)
AudioSourceError(this, new AudioSourceErrorEventArgs(ex.Message));
else throw;
}
finally
{
if (captureBuffer != null)
{
captureBuffer.Stop();
captureBuffer.Dispose();
}
if (captureDevice != null)
captureDevice.Dispose();
for (int i = 0; i < notifications.Length; i++)
if (notifications[i].Event != null)
notifications[i].Event.Close();
}
}
/// <summary>
/// 创建录音服务对象
/// </summary>
/// <param name="owner">宿主</param>
/// <param name="deviceIndex">设备序号（0 - 默认设备）</param>
/// <param name="channelCount">通道数</param>
/// <param name="frequency">采样频率（次/秒）</param>
/// <param name="sampleSize">样本尺寸（位/次）</param>
/// <param name="bufferSectionTimeSpan">缓冲区片段的时间间隔</param>
/// <param name="bufferSectionCount">缓冲区片段数</param>
/// <param name="notificationEvent">通知点信号（工作线程等待此信号）</param>
public SoundRecorder(Control owner, int deviceIndex, short channelCount, int frequency, short sampleSize, TimeSpan bufferSectionTimeSpan, int bufferSectionCount, AutoResetEvent notificationEvent)
: base()
{
//宿主
this.Owner = owner;
#region 设备
CaptureDevicesCollection devices = new CaptureDevicesCollection();
this.Device = new Capture(devices[deviceIndex].DriverGuid);
#endregion
#region 缓冲区描述
#region Wave格式
WaveFormat format = new WaveFormat();
format.FormatTag = WaveFormatTag.Pcm; //格式类型
format.Channels = channelCount; //通道数
format.SamplesPerSecond = frequency; //采样频率（次/秒）
format.BitsPerSample = sampleSize; //样本尺寸（位/次）
format.BlockAlign = (short)((format.BitsPerSample / 8) * format.Channels); //数据块的最小单元（字节/次）
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond; //采样性能（字节/秒）
#endregion
//缓冲区片段尺寸
int bufferSectionSize = format.AverageBytesPerSecond * (int)bufferSectionTimeSpan.TotalSeconds;
//缓冲区尺寸
int bufferSize = bufferSectionSize * bufferSectionCount;
//创建
CaptureBufferDescription bufferDescription = new CaptureBufferDescription();
bufferDescription.Format = format;
bufferDescription.BufferBytes = bufferSize;
this.BufferDescription = bufferDescription;
#endregion
#region 缓冲区位置通知序列
//通知点信号
this.NotificationEvent = notificationEvent;
//位置通知序列
this.BufferPositionNotifys = new BufferPositionNotify[bufferSectionCount];
for (int i = 0; i < bufferSectionCount; i++)
{
this.BufferPositionNotifys[i].Offset = bufferSectionSize * (i + 1) - 1; //通知点
this.BufferPositionNotifys[i].EventNotifyHandle = this.NotificationEvent.SafeWaitHandle.DangerousGetHandle(); //通知点信号 Set()
}
#endregion
#region 工作线程
this.ThreadWorking = true;
this.WorkingThread = new Thread(new ParameterizedThreadStart(this.WorkingThreadProcess));
this.WorkingThread.IsBackground = true;
this.WorkingThread.Start(this.NotificationEvent); //带入参数
#endregion
}
/*
* Initializes all the data members.
*/
private void Initialize()
{
try
{
device = new Device();
device.SetCooperativeLevel(this, CooperativeLevel.Normal);
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
DeviceInformation deviceInfo = captureDeviceCollection[0];
capture = new Capture(deviceInfo.DriverGuid);
short channels = 1; //Stereo.
short bitsPerSample = 16; //16Bit, alternatively use 8Bits.
int samplesPerSecond = 22050; //11KHz use 11025 , 22KHz use 22050, 44KHz use 44100 etc.
//Set up the wave format to be captured.
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data.
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
bIsCallActive = false;
nUdpClientFlag = 0;
//Using UDP sockets
clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
EndPoint ourEP = new IPEndPoint(IPAddress.Any, 1450);
//Listen asynchronously on port 1450 for coming messages (Invite, Bye, etc).
clientSocket.Bind(ourEP);
//Receive data from any IP.
EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
byteData = new byte[1024];
//Receive data asynchornously.
clientSocket.BeginReceiveFrom(byteData,
0, byteData.Length,
SocketFlags.None,
ref remoteEP,
new AsyncCallback(OnReceive),
null);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "VoiceChat-Initialize ()", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// 创建缓冲区
/// </summary>
private void CreateCaptureBuffer()
{
// 想要创建一个捕捉缓冲区必须要两个参数：缓冲区信息（描述这个缓冲区中的格式等），缓冲设备。
CaptureBufferDescription cbdBufDescription = new CaptureBufferDescription();
cbdBufDescription.Format = m_wavFormat; // 缓冲区捕捉的数据格式
// 1秒的数据量/设置的通知数 得到的每个通知大小小于0.2s的数据量，话音延迟小于200ms为优质话音
m_nNotifySize = m_wavFormat.AverageBytesPerSecond / m_nNotifyNum;
m_nBufSize = m_nNotifyNum * m_nNotifySize;
cbdBufDescription.BufferBytes = m_nBufSize;
m_objCaptureBuf = new CaptureBuffer(cbdBufDescription, m_objCapture);
}
public void Initialize()
{
try
{
LogLine("Getting local IP address...");
LocalIP.Text = NetProcedures.GetLocalIPAddress();
LogLine("Using global IP address...");
GlobalIP.Text = NetProcedures.globalIP;
LogLine("Connecting to capturing device...");
device = new Device();
device.SetCooperativeLevel(this, CooperativeLevel.Normal);
CaptureDevicesCollection captureDeviceCollection = new CaptureDevicesCollection();
DeviceInformation deviceInfo = captureDeviceCollection[0];
capture = new Capture(deviceInfo.DriverGuid);
LogLine("Preparing audio format to be captured...");
short channels = (short)Channels.Value;
short bitsPerSample;
if (radioButton7.Checked) bitsPerSample = 8;
else bitsPerSample = 16;
int samplesPerSecond;
if (radioButton1.Checked) samplesPerSecond = 11025;
else if (radioButton2.Checked) samplesPerSecond = 22050;
else samplesPerSecond = 44100;
//Set up the wave format to be captured.
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;//approx 200 milliseconds of PCM data.
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, device);
bufferSize = captureBufferDescription.BufferBytes;
bIsCallActive = false;
nUdpClientFlag = 0;
//Using UDP sockets
LogLine("Initializing a socket...");
clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
EndPoint ourEP = new IPEndPoint(IPAddress.Any, 3535);
clientSocket.Bind(ourEP);
//Receive data from any IP.
EndPoint remoteEP = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
byteData = new byte[1024];
//Receive data asynchornously.
LogLine("Preparing to receive data...");
clientSocket.BeginReceiveFrom(byteData,
0, byteData.Length,
SocketFlags.None,
ref remoteEP,
new AsyncCallback(OnReceive),
null);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка инициализации | Fenazy", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public void ConfigureSoundDevice(short channels, Control appForm, short bitsPerSample, int samplesPerSecond)
{
this.cooperativeForm = appForm;
RefreshSoundDevice();
waveFormat = new WaveFormat();
waveFormat.Channels = channels;
waveFormat.FormatTag = WaveFormatTag.Pcm;
waveFormat.SamplesPerSecond = samplesPerSecond;
waveFormat.BitsPerSample = bitsPerSample;
waveFormat.BlockAlign = (short)(channels * (bitsPerSample / (short)8));
waveFormat.AverageBytesPerSecond = waveFormat.BlockAlign * samplesPerSecond;
captureBufferDescription = new CaptureBufferDescription();
captureBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
captureBufferDescription.Format = waveFormat;
playbackBufferDescription = new BufferDescription();
playbackBufferDescription.BufferBytes = waveFormat.AverageBytesPerSecond / 5;
playbackBufferDescription.Format = waveFormat;
playbackBuffer = new SecondaryBuffer(playbackBufferDescription, new Device());
bufferSize = captureBufferDescription.BufferBytes;
}
static void InicialiceCaptureBuffer()
{
try
{
CaptureDevicesCollection audioDevices = new CaptureDevicesCollection();
// initialize the capture buffer and start the animation thread
Capture cap = new Capture(audioDevices[1].DriverGuid);
CaptureBufferDescription desc = new CaptureBufferDescription();
WaveFormat wf = new WaveFormat();
wf.BitsPerSample = 16;
wf.SamplesPerSecond = 44100;
wf.Channels = (short)cap.Caps.Channels;
wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond;
wf.FormatTag = WaveFormatTag.Pcm;
desc.Format = wf;
desc.BufferBytes = SAMPLES * wf.BlockAlign;
buffer = new CaptureBuffer(desc, cap);
buffer.Start(true);
}
catch
{
Console.WriteLine("Error al iniciar el capturador de sonido");
}
}
public bool StartCodec(ref string strFault)
{
bool functionReturnValue = false;
//Returns true if successful
Thread.Sleep(100);
// This delay is necessary for reliable starup following a StopCodec
lock (objCodecLock) {
dttLastSoundCardSample = Now;
bool blnSpectrumSave = MCB.DisplaySpectrum;
bool blnWaterfallSave = MCB.DisplayWaterfall;
System.DateTime dttStartWait = Now;
MCB.DisplayWaterfall = false;
MCB.DisplaySpectrum = false;
string[] strCaptureDevices = EnumerateCaptureDevices();
string[] strPlaybackDevices = EnumeratePlaybackDevices();
functionReturnValue = false;
DeviceInformation objDI = new DeviceInformation();
int intPtr = 0;
// Playback devices
try {
cllPlaybackDevices = null;
cllPlaybackDevices = new Microsoft.DirectX.DirectSound.DevicesCollection();
if ((devSelectedPlaybackDevice != null)) {
devSelectedPlaybackDevice.Dispose();
devSelectedPlaybackDevice = null;
}
foreach (DeviceInformation objDI in cllPlaybackDevices) {
DeviceDescription objDD = new DeviceDescription(objDI);
if (strPlaybackDevices(intPtr) == MCB.PlaybackDevice) {
if (MCB.DebugLog)
Logs.WriteDebug("[Main.StartCodec] Setting SelectedPlaybackDevice = " + MCB.PlaybackDevice);
devSelectedPlaybackDevice = new Device(objDD.info.DriverGuid);
functionReturnValue = true;
break; // TODO: might not be correct. Was : Exit For
}
intPtr += 1;
}
if (!functionReturnValue) {
strFault = "Playback Device setup, Device " + MCB.PlaybackDevice + " not found in Windows enumerated Playback Devices";
}
} catch (Exception ex) {
strFault = Err.Number.ToString + "/" + Err.Description;
Logs.Exception("[StartCodec], Playback Device setup] Err: " + ex.ToString);
functionReturnValue = false;
}
if (functionReturnValue) {
// Capture Device
CaptureBufferDescription dscheckboxd = new CaptureBufferDescription();
try {
functionReturnValue = false;
cllCaptureDevices = null;
cllCaptureDevices = new CaptureDevicesCollection();
intPtr = 0;
for (int i = 0; i <= cllCaptureDevices.Count - 1; i++) {
if (MCB.CaptureDevice == strCaptureDevices(i)) {
objCaptureDeviceGuid = cllCaptureDevices(i).DriverGuid;
devCaptureDevice = new Capture(objCaptureDeviceGuid);
stcSCFormat.SamplesPerSecond = 12000;
// 12000 Hz sample rate
stcSCFormat.Channels = 1;
stcSCFormat.BitsPerSample = 16;
stcSCFormat.BlockAlign = 2;
stcSCFormat.AverageBytesPerSecond = 2 * 12000;
stcSCFormat.FormatTag = WaveFormatTag.Pcm;
objApplicationNotify = null;
objCapture = null;
// Set the buffer sizes
intCaptureBufferSize = intNotifySize * intNumberRecordNotifications;
// Create the capture buffer
dscheckboxd.BufferBytes = intCaptureBufferSize;
stcSCFormat.FormatTag = WaveFormatTag.Pcm;
dscheckboxd.Format = stcSCFormat;
// Set the format during creatation
if ((objCapture != null)) {
objCapture.Dispose();
objCapture = null;
}
//objCapture = New CaptureBuffer(dscheckboxd, devCaptureDevice)
intNextCaptureOffset = 0;
WriteTextToSpectrum("CODEC Start OK", Brushes.LightGreen);
while (Now.Subtract(dttStartWait).TotalSeconds < 3) {
Application.DoEvents();
Thread.Sleep(100);
}
objCapture = new CaptureBuffer(dscheckboxd, devCaptureDevice);
InititializeNotifications();
objCapture.Start(true);
// start with looping
InititializeSpectrum(Color.Black);
functionReturnValue = true;
}
}
if (!functionReturnValue) {
strFault = "Could not find DirectSound capture device " + MCB.CaptureDevice.ToUpper;
//Logs.Exception("[Main.StartCodec] Could not find DirectSound capture device " & MCB.CaptureDevice & " in Windows enumerated Capture Devices")
}
} catch (Exception ex) {
strFault = Err.Number.ToString + "/" + Err.Description;
functionReturnValue = false;
//Logs.Exception("[Main.StartCodec] Err: " & ex.ToString)
}
}
if (functionReturnValue) {
if (MCB.DebugLog)
Logs.WriteDebug("[Main.StartCodec] Successful start of codec");
objProtocol.ARDOPProtocolState = ProtocolState.DISC;
} else {
if (MCB.DebugLog)
Logs.WriteDebug("[Main.StartCodec] CODEC Start Failed");
WriteTextToSpectrum("CODEC Start Failed", Brushes.Red);
objProtocol.ARDOPProtocolState = ProtocolState.OFFLINE;
while (Now.Subtract(dttStartWait).TotalSeconds < 3) {
Application.DoEvents();
Thread.Sleep(100);
}
tmrStartCODEC.Interval = 5000;
tmrStartCODEC.Start();
}
InititializeSpectrum(Color.Black);
MCB.DisplayWaterfall = blnWaterfallSave;
MCB.DisplaySpectrum = blnSpectrumSave;
}
return functionReturnValue;
}
private void CreateCaptureBuffer()
{
//想要创建一个捕捉缓冲区必须要两个参数：缓冲区信息（描述这个缓冲区中的格式等），缓冲设备。
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
bufferdescription.Format = mWavFormat;//设置缓冲区要捕捉的数据格式
iNotifySize = 1024;//设置通知大小
iBufferSize = iNotifyNum * iNotifySize;
bufferdescription.BufferBytes = iBufferSize;
capturebuffer = new CaptureBuffer(bufferdescription, capture);//建立设备缓冲区对象
}
// Helper method to test a specific WaveFormat instance.
private void VerifyFormat(WaveFormat newFormat)
{
if (this._captureDevice == null)
{
throw new InvalidOperationException("Capture device is null.");
}
CaptureBufferDescription capBuffDesc = new CaptureBufferDescription();
capBuffDesc.BufferBytes = newFormat.AverageBytesPerSecond;
capBuffDesc.Format = newFormat;
CaptureBuffer capBuff = null;
try
{
capBuff = new CaptureBuffer(capBuffDesc, this._captureDevice);
}
catch (Exception ex)
{
string errMsg =
string.Format("Sound format not supported: {0} samples/sec, {1} bits/sample, {2} channels.",
newFormat.SamplesPerSecond, newFormat.BitsPerSample, newFormat.Channels);
throw new Exception(errMsg, ex);
}
if (capBuff != null)
{
capBuff.Dispose();
capBuff = null;
}
}
public void CreateCaptureBuffer()
{
// 想要創建一個捕捉緩衝區必须要兩個參數：缓衝區信息（描述這個緩衝區中的格式等），緩衝設備。
mWavFormat = SetWaveFormat(); // 先設定waveformat格式
CaptureBufferDescription bufferdescription = new CaptureBufferDescription();
bufferdescription.Format = mWavFormat; // 設置缓衝區要捕捉的數據格式
//iNotifySize = 1024; // 設置通知大小
iNotifySize = mWavFormat.AverageBytesPerSecond / iNotifyNum; // 1秒的數據量 / 設置的通知數得到的每個通知大小小於0.2s的數據量，語音延遲小於200ms為優質語音
iBufferSize = iNotifyNum * iNotifySize;
bufferdescription.BufferBytes = iBufferSize;
bufferdescription.ControlEffects = true;
bufferdescription.WaveMapped = true;
capturebuffer = new CaptureBuffer(bufferdescription, capture); // 建立設備緩衝區對象
}
