/// <summary>Get the output device name from device id</summary>
/// <param name="deviceId">device id</param>
/// <param name="prodName">returns device name</param>
/// <returns>MMSYSERR</returns>
public MMSYSERR GetOutputDeviceName(uint deviceId, ref string prodName)
{
WAVEOUTCAPS caps = new WAVEOUTCAPS();
MMSYSERR result = waveOutGetDevCaps(deviceId, out caps, (uint)Marshal.SizeOf(caps));
if (result != MMSYSERR.NOERROR)
{
return(result);
}
//WAVEOUTCAPS2 often does not return product name GUID, as it is not
//a required field, so is most often left blank..
//The only way to get full string in vista/w7 that I have come across is
//by enumerating devices with directsound, but that would mean referencing
//the library, so.. deal with it
prodName = new string(caps.szPname);
if (prodName.Contains("(") && !(prodName.Contains(")")))
{
prodName = prodName.Substring(0, prodName.IndexOf("("));
}
else if (prodName.Contains(")"))
{
if (prodName.IndexOf(")") > 8)
{
prodName = prodName.Substring(0, prodName.IndexOf(")") + 1);
}
}
return(MMSYSERR.NOERROR);
}
/// <summary>Stop recording and reset</summary>
/// <returns>MMSYSERR</returns>
public MMSYSERR Stop()
{
MMSYSERR mmr = MMSYSERR.ERROR;
try
{
_bFinished = true;
if (_pWaveIn != IntPtr.Zero)
{
waveInReset(_pWaveIn);
}
if (_cThread != null)
{
_cThread.Abort();
}
_eDoneProc = null;
FreeBuffers();
if (_pWaveIn != IntPtr.Zero)
{
mmr = waveInClose(_pWaveIn);
}
else
{
mmr = MMSYSERR.NOERROR;
}
}
finally
{
_cThread = null;
_pWaveIn = IntPtr.Zero;
Recording = false;
}
return(mmr);
}
/// <summary>Stop playback, and cleanup resources</summary>
/// <returns>MMSYSERR</returns>
public MMSYSERR Stop()
{
MMSYSERR mmr = MMSYSERR.ERROR;
try
{
_bFinished = true;
if (_pWaveOut != IntPtr.Zero)
{
waveOutReset(_pWaveOut);
}
if (_cThread != null)
{
_cThread.Abort();
}
_eFillProc = null;
FreeBuffers();
if (_pWaveOut != IntPtr.Zero)
{
mmr = waveOutClose(_pWaveOut);
}
else
{
mmr = MMSYSERR.NOERROR;
}
}
finally
{
_cThread = null;
_pWaveOut = IntPtr.Zero;
this.Playing = false;
}
return(mmr);
}
private MMSYSERR SetVolume(IntPtr hmixer, MIXERCONTROL mxc, uint volume)
{
IntPtr hmem = IntPtr.Zero;
MMSYSERR err = MMSYSERR.NOERROR;
MIXERCONTROLDETAILS mxcd = new MIXERCONTROLDETAILS();
MIXERCONTROLDETAILS_UNSIGNED vol = new MIXERCONTROLDETAILS_UNSIGNED();
try
{
mxcd.hwndOwner = IntPtr.Zero;
mxcd.dwControlID = mxc.dwControlID;
mxcd.cbStruct = (uint)Marshal.SizeOf(mxcd);
mxcd.cbDetails = (uint)Marshal.SizeOf(vol);
mxcd.cChannels = 1;
vol.value = volume;
hmem = malloc(Marshal.SizeOf(vol));
mxcd.paDetails = hmem;
Marshal.StructureToPtr(vol, mxcd.paDetails, true);
err = mixerSetControlDetails(hmixer, ref mxcd, 0x0);
if (hmem != IntPtr.Zero)
{
free(hmem, Marshal.SizeOf(vol));
}
return(err);
}
catch { return(err); }
}
private void ClearBuffers()
{
foreach (InItem item in _queueOut)
{
WaveHeader waveHeader = item._waveHeader;
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutUnprepareHeader(_hwo, waveHeader.WAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
}
}
internal AudioException(MMSYSERR errorCode)
: base(string.Format(CultureInfo.InvariantCulture, "{0} - Error Code: 0x{1:x}", new object[2]
{
SR.Get(SRID.AudioDeviceError),
(int)errorCode
}))
{
}
internal override void Resume()
{
lock (_noWriteOutLock)
{
if (!_aborted && _fPaused && _deviceOpen)
{
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutRestart(_hwo);
}
}
_fPaused = false;
}
internal static MMSYSERR GetDeviceName(int deviceId, [MarshalAs(UnmanagedType.LPWStr)] out string prodName)
{
prodName = string.Empty;
SafeNativeMethods.WAVEOUTCAPS caps = default(SafeNativeMethods.WAVEOUTCAPS);
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutGetDevCaps((IntPtr)deviceId, ref caps, Marshal.SizeOf((object)caps));
if (mMSYSERR != 0)
{
return(mMSYSERR);
}
prodName = caps.szPname;
return(MMSYSERR.NOERROR);
}
internal override void Pause()
{
lock (_noWriteOutLock)
{
if (!_aborted && !_fPaused)
{
if (_deviceOpen)
{
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutPause(_hwo);
}
_fPaused = true;
}
}
}
/// <summary>
/// Play a wave file.
/// </summary>
internal override void Play(byte[] buffer)
{
if (!_deviceOpen)
{
System.Diagnostics.Debug.Assert(false);
}
else
{
int bufferSize = buffer.Length;
_bytesWritten += bufferSize;
System.Diagnostics.Debug.Assert(bufferSize % _blockAlign == 0);
WaveHeader waveHeader = new(buffer);
GCHandle waveHdr = waveHeader.WAVEHDR;
MMSYSERR result = SafeNativeMethods.waveOutPrepareHeader(_hwo, waveHdr.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (result != MMSYSERR.NOERROR)
{
throw new AudioException(result);
}
lock (_noWriteOutLock)
{
if (!_aborted)
{
lock (_queueIn)
{
InItem item = new(waveHeader);
_queueIn.Add(item);
// Something in the queue cannot exit anymore
_evt.Reset();
}
// Start playback of the first buffer
result = SafeNativeMethods.waveOutWrite(_hwo, waveHdr.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (result != MMSYSERR.NOERROR)
{
lock (_queueIn)
{
_queueIn.RemoveAt(_queueIn.Count - 1);
throw new AudioException(result);
}
}
}
}
}
}
/// <summary>
/// Get the name of the specified playback device.
/// </summary>
/// <param name="deviceId">ID of the device</param>
/// <param name="prodName">Destination string assigned the name</param>
/// <returns>MMSYSERR.NOERROR if successful</returns>
internal static MMSYSERR GetDeviceName(int deviceId, [MarshalAs(UnmanagedType.LPWStr)] out string prodName)
{
prodName = string.Empty;
SafeNativeMethods.WAVEOUTCAPS caps = new();
MMSYSERR result = SafeNativeMethods.waveOutGetDevCaps((IntPtr)deviceId, ref caps, Marshal.SizeOf <SafeNativeMethods.WAVEOUTCAPS>());
if (result != MMSYSERR.NOERROR)
{
return(result);
}
prodName = caps.szPname;
return(MMSYSERR.NOERROR);
}
/// <summary>Set the volume level</summary>
/// <param name="left">left channel</param>
/// <param name="right">right channel</param>
/// <returns>MMSYSERR</returns>
public MMSYSERR SetVolume(uint left, uint right)
{
uint vol = (left & 0x00ff) | (right << 8);
MMSYSERR err = MMSYSERR.NOERROR;
err = waveOutSetVolume(_pWaveOut, vol);
// probably poor ol' vista
if (err != MMSYSERR.NOERROR)
{
Mixer mx = new Mixer();
mx.OpenMixer();
err = mx.SetVolume(vol);
mx.CloseMixer();
}
return(err);
}
/// <summary>Get the current volume levels</summary>
/// <param name="left">returns left channel</param>
/// <param name="right">returns right channel</param>
/// <returns>MMSYSERR</returns>
public MMSYSERR GetVolume(ref uint left, ref uint right)
{
uint vol = 0;
MMSYSERR err = waveOutGetVolume(_pWaveOut, out vol);
if (err != MMSYSERR.NOERROR)
{
return(err);
}
left = (vol & 0x00ff);
right = (vol >> 8);
return(err);
}
/// <summary>
/// Start playing the audio
/// </summary>
/// <param name="cnsStart"></param>
public void Start(long cnsStart)
{
//
// Ensure that a reader object has been instantiated.
//
if (IsDisposed())
{
throw new COMException("Instance has been Disposed", E_Unexpected);
}
m_OldTime = -1;
//
// Configure the wave output device.
//
if (IntPtr.Zero != m_hWaveOut)
{
int woe = waveOut.Reset(m_hWaveOut);
waveOut.ThrowExceptionForError(woe);
}
else
{
int mmr = waveOut.Open(out m_hWaveOut,
m_DeviceIndex,
m_pWfx,
IntPtr.Zero,
IntPtr.Zero,
WaveOpenFlags.Null);
waveOut.ThrowExceptionForError(mmr);
// If a form was provided
if (m_fForm != null)
{
// Ensure volume change events get sent
MIXER_OBJECTF flags = MIXER_OBJECTF.CallBack_Window | MIXER_OBJECTF.WaveOut;
MMSYSERR rc = Mixer.Open(out m_hMixer, m_DeviceIndex, m_fForm.Handle, IntPtr.Zero, flags);
// Not checking for error. If something goes wrong, rather than fail the call, we
// just won't update the volume bar
}
for (int x = 0; x < MAXBUFFERS; x++)
{
m_InsBuf[x] = new INSBuf(m_hWaveOut, m_MaxSampleSize);
}
}
m_pReader.Start(cnsStart, 0, 1.0f, IntPtr.Zero);
}
internal override void End()
{
if (!_deviceOpen)
{
throw new InvalidOperationException();
}
lock (_noWriteOutLock)
{
_deviceOpen = false;
CheckForAbort();
if (_queueIn.Count != 0)
{
SafeNativeMethods.waveOutReset(_hwo);
}
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutClose(_hwo);
}
}
/// <summary>
/// Resume the playback of a paused sound.
/// </summary>
internal override void Resume()
{
lock (_noWriteOutLock)
{
if (!_aborted && _fPaused)
{
if (_deviceOpen)
{
MMSYSERR result = SafeNativeMethods.waveOutRestart(_hwo);
if (result != MMSYSERR.NOERROR)
{
System.Diagnostics.Debug.Assert(false);
}
}
}
}
_fPaused = false;
}
/// <summary>
/// Pause the playback of a sound.
/// </summary>
internal override void Pause()
{
lock (_noWriteOutLock)
{
if (!_aborted && !_fPaused)
{
if (_deviceOpen)
{
MMSYSERR result = SafeNativeMethods.waveOutPause(_hwo);
if (result != MMSYSERR.NOERROR)
{
System.Diagnostics.Debug.Assert(false, ((int)result).ToString(System.Globalization.CultureInfo.InvariantCulture));
}
}
_fPaused = true;
}
}
}
/// <summary>Begin recording</summary>
/// <returns>MMSYSERR</returns>
public MMSYSERR Record()
{
MMSYSERR mmr = waveInOpen(out _pWaveIn, Device, ref _tWaveFormat, _cBufferProc, 0, CALLBACK_FUNCTION);
if (mmr == MMSYSERR.NOERROR)
{
AllocateBuffers(BufferSize, BufferCount);
for (uint i = 0; i < BufferCount; i++)
{
SelectNextBuffer();
_cCurrentBuffer.Record();
}
waveInStart(_pWaveIn);
_cThread = new Thread(new ThreadStart(ThreadProc));
_cThread.Start();
Recording = true;
}
return(mmr);
}
private MMSYSERR GetVolumeInfo(IntPtr hmixer, int ctrlType, ref MIXERCONTROL mxc)
{
MMSYSERR err = MMSYSERR.NOERROR;
try
{
IntPtr hmem = IntPtr.Zero;
MIXERLINECONTROLS mxlc = new MIXERLINECONTROLS();
mxlc.cbStruct = (uint)Marshal.SizeOf(mxlc);
MIXERLINE mxl = new MIXERLINE();
mxl.cbStruct = (uint)Marshal.SizeOf(mxl);
mxl.dwComponentType = (uint)MIXERLINE_COMPONENTTYPE.DST_SPEAKERS;
err = mixerGetLineInfo(hmixer, ref mxl, MIXER_GETLINEINFOF.COMPONENTTYPE);
if (err == MMSYSERR.NOERROR)
{
mxlc.dwLineID = (uint)mxl.dwLineID;
mxlc.dwControlID = (uint)ctrlType;
mxlc.cControls = 1;
mxlc.cbmxctrl = (uint)Marshal.SizeOf(mxc);
hmem = malloc(Marshal.SizeOf(mxlc));
mxlc.pamxctrl = hmem;
mxc.cbStruct = (uint)Marshal.SizeOf(mxc);
err = mixerGetLineControls(hmixer, ref mxlc, MIXER_GETLINECONTROLSF_ONEBYTYPE);
if (err == MMSYSERR.NOERROR)
{
mxc = (MIXERCONTROL)Marshal.PtrToStructure(mxlc.pamxctrl, typeof(MIXERCONTROL));
if (hmem != IntPtr.Zero)
{
free(hmem, Marshal.SizeOf(mxc));
}
return(err);
}
if (hmem != IntPtr.Zero)
{
free(hmem, Marshal.SizeOf(mxc));
}
}
return(err);
}
catch { return(err); }
}
/// <summary>Start playback - must call CopyStream() first</summary>
/// <param name="file">file name</param>
/// <returns>MMSYSERR</returns>
public MMSYSERR Play(string file)
{
if (this.Playing)
{
Stop();
}
_btZero = _tWaveFormat.wBitsPerSample == 8 ? (byte)128 : (byte)0;
MMSYSERR err = waveOutOpen(out _pWaveOut, this.Device, ref _tWaveFormat, _BufferProc, 0, CALLBACK_FUNCTION);
// if success
if (err == MMSYSERR.NOERROR)
{
this.Playing = true;
// create buffers and launch thread
AllocateBuffers(this.BufferSize, this.BufferCount);
_cThread = new Thread(new ThreadStart(ThreadProc));
_cThread.Start();
}
return(err);
}
/// <summary>
/// Begin recording.
/// </summary>
/// <returns>MMSYSERR.</returns>
public MMSYSERR Record()
{
MMSYSERR mmr = waveInOpen(out _pWaveIn, _device, ref _waveFormat,
_cBufferProc, 0, CALLBACK_FUNCTION_FLAG); // system function
if (mmr == MMSYSERR.NOERROR)
{
_AllocateBuffers(BUFFER_SIZE, BUFFERS_COUNT);
for (uint i = 0; i < BUFFERS_COUNT; i++)
{
_SelectNextBuffer();
_currentBuffer.Record();
}
waveInStart(_pWaveIn); // system function
_thread = new Thread(new ThreadStart(_ThreadProc));
_thread.Start();
}
return(mmr);
}
/// <summary>
/// Get the input device name from device id.
/// </summary>
/// <param name="deviceId">Device id.</param>
/// <param name="prodName">Returns device name.</param>
/// <returns>MMSYSERR.</returns>
private static MMSYSERR _GetInputDeviceName(uint deviceId, ref string prodName)
{
var caps = new WaveInCaps();
MMSYSERR result = waveInGetDevCaps(deviceId, out caps, (uint)Marshal.SizeOf(caps)); // system function
if (result != MMSYSERR.NOERROR)
{
return(result);
}
prodName = new string(caps.szPname);
if (prodName.Contains("(") && !(prodName.Contains(")")))
{
prodName = prodName.Substring(0, prodName.IndexOf("("));
}
else if (prodName.Contains(")"))
{
if (prodName.IndexOf(")") > 8)
{
prodName = prodName.Substring(0, prodName.IndexOf(")") + 1);
}
}
return(MMSYSERR.NOERROR);
}
/// <summary>Get the input device name from device id</summary>
/// <param name="deviceId">device id</param>
/// <param name="prodName">returns device name</param>
/// <returns>MMSYSERR</returns>
public MMSYSERR GetInputDeviceName(uint deviceId, ref string prodName)
{
WAVEINCAPS caps = new WAVEINCAPS();
MMSYSERR result = waveInGetDevCaps(deviceId, out caps, (uint)Marshal.SizeOf(caps));
if (result != MMSYSERR.NOERROR)
{
return(result);
}
prodName = new string(caps.szPname);
if (prodName.Contains("(") && !(prodName.Contains(")")))
{
prodName = prodName.Substring(0, prodName.IndexOf("("));
}
else if (prodName.Contains(")"))
{
if (prodName.IndexOf(")") > 8)
{
prodName = prodName.Substring(0, prodName.IndexOf(")") + 1);
}
}
return(MMSYSERR.NOERROR);
}
/// <summary>Open the mixer</summary>
/// <returns>error</returns>
public MMSYSERR OpenMixer()
{
MMSYSERR err = MMSYSERR.NOERROR;
err = mixerOpen(ref _hMixer, 0, IntPtr.Zero, IntPtr.Zero, 0);
if (err == MMSYSERR.NOERROR)
{
_tVolume = new MIXERCONTROL();
_tVolume.cbStruct = (uint)Marshal.SizeOf(_tVolume);
err = GetVolumeInfo(_hMixer, MIXERCONTROL_CONTROLTYPE_VOLUME, ref _tVolume);
if (err == MMSYSERR.NOERROR)
{
_iVolNorm = (int)_tVolume.fdwControl;
return(err);
}
}
if (err != MMSYSERR.NOERROR && _hMixer != IntPtr.Zero)
{
CloseMixer();
}
return(err);
}
/// <summary>Stop recording and reset.</summary>
/// <returns>MMSYSERR.</returns>
public MMSYSERR Stop()
{
MMSYSERR mmr = MMSYSERR.ERROR;
try
{
_isFinished = true;
if (_pWaveIn != IntPtr.Zero)
{
waveInReset(_pWaveIn); // system function
}
if (_thread != null)
{
_thread.Abort();
}
_eDoneProc = null;
_FreeBuffers();
if (_pWaveIn != IntPtr.Zero)
{
mmr = waveInClose(_pWaveIn); // system function
}
else
{
mmr = MMSYSERR.NOERROR;
}
}
finally
{
_thread = null;
_pWaveIn = IntPtr.Zero;
}
return(mmr);
}
internal override void Play(byte[] buffer)
{
if (_deviceOpen)
{
int num = buffer.Length;
_bytesWritten += num;
WaveHeader waveHeader = new WaveHeader(buffer);
GCHandle wAVEHDR = waveHeader.WAVEHDR;
MMSYSERR mMSYSERR = SafeNativeMethods.waveOutPrepareHeader(_hwo, wAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (mMSYSERR != 0)
{
throw new AudioException(mMSYSERR);
}
lock (_noWriteOutLock)
{
if (!_aborted)
{
lock (_queueIn)
{
InItem item = new InItem(waveHeader);
_queueIn.Add(item);
_evt.Reset();
}
mMSYSERR = SafeNativeMethods.waveOutWrite(_hwo, wAVEHDR.AddrOfPinnedObject(), waveHeader.SizeHDR);
if (mMSYSERR != 0)
{
lock (_queueIn)
{
_queueIn.RemoveAt(_queueIn.Count - 1);
throw new AudioException(mMSYSERR);
}
}
}
}
}
}
public static string Errorstring(MMSYSERR iError)
{
string sRet;
switch (iError)
{
case MMSYSERR.NoError:
sRet = "The specified command was carried out.";
break;
case MMSYSERR.Error:
sRet = "Undefined external error.";
break;
case MMSYSERR.BadDeviceID:
sRet = "A device ID has been used that is out of range for your system.";
break;
case MMSYSERR.NotEnabled:
sRet = "The driver was not enabled.";
break;
case MMSYSERR.Allocated:
sRet = "The specified device is already in use. Wait until it is free, and then try again.";
break;
case MMSYSERR.InvalHandle:
sRet = "The specified device handle is invalid.";
break;
case MMSYSERR.NoDriver:
sRet = "There is no driver installed on your system.";
break;
case MMSYSERR.NoMem:
sRet = "There is not enough memory available for this task. Quit one or more applications to increase avai";
break;
case MMSYSERR.NotSupported:
sRet = "This function is not supported. Use the Capabilities function to determine which functions and mes";
break;
case MMSYSERR.BadErrNum:
sRet = "An error number was specified that is not defined in the system.";
break;
case MMSYSERR.InvalFlag:
sRet = "An invalid flag was passed to a system function.";
break;
case MMSYSERR.InvalParam:
sRet = "An invalid parameter was passed to a system function.";
break;
case MMSYSERR.HandleBusy:
sRet = "Handle being used simultaneously on another thread (eg callback).";
break;
case MMSYSERR.InvalidAlias:
sRet = "Specified alias not found in WIN.INI.";
break;
case MMSYSERR.BadDB:
sRet = "The registry database is corrupt.";
break;
case MMSYSERR.KeyNotFound:
sRet = "The specified registry key was not found.";
break;
case MMSYSERR.ReadError:
sRet = "The registry could not be opened or could not be read.";
break;
case MMSYSERR.WriteError:
sRet = "The registry could not be written to.";
break;
case MMSYSERR.DeleteError:
sRet = "The specified registry key could not be deleted.";
break;
case MMSYSERR.ValNotFound:
sRet = "The specified registry key value could not be found.";
break;
case MMSYSERR.NoDriverCB:
sRet = "The driver did not generate a valid OPEN callback.";
break;
case MMSYSERR.MoreData:
sRet = "More data to be returned";
break;
case MMSYSERR.InvalLine:
sRet = "The line reference is invalid.";
break;
case MMSYSERR.InvalControl:
sRet = "The control reference is invalid.";
break;
case MMSYSERR.InvalValue:
sRet = "The value is invalid.";
break;
default:
sRet = "Unknown error code";
break;
}
return sRet;
}
internal AudioException(MMSYSERR errorCode) : base(string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0} - Error Code: 0x{1:x}", SR.Get(SRID.AudioDeviceError), (int)errorCode))
{
}
public static void ThrowExceptionForError(MMSYSERR i)
{
if (i != MMSYSERR.NoError)
{
throw new Exception(Errorstring(i));
}
}
