private static extern int mixerGetDevCapsA(int uMxId, MIXERCAPS pmxcaps, int cbmxcaps);
private AudioDevice GetDefaultDevice(MixerType mixerType)
{
MMErrors errorCode = 0;
IntPtr hWave = IntPtr.Zero;
IntPtr hMixer = IntPtr.Zero;
try
{
WAVEFORMATEX waveFormat = WAVEFORMATEX.Empty;
waveFormat.formatTag = WaveFormatTag.PCM;
waveFormat.nChannels = 1;
waveFormat.nSamplesPerSec = 8000;
waveFormat.wBitsPerSample = 8;
waveFormat.nBlockAlign = (short)(waveFormat.nChannels * (waveFormat.wBitsPerSample / 8));
waveFormat.nAvgBytesPerSec = waveFormat.nSamplesPerSec * waveFormat.nBlockAlign;
waveFormat.cbSize = 0;
// Get default mixer HWND
if (mixerType == MixerType.Recording)
{
errorCode = (MMErrors)WaveNative.waveInOpen(out hWave, WaveNative.WAVE_MAPPER, ref waveFormat, CallbackForm.Handle, IntPtr.Zero, (int)CallBackFlag.CALLBACK_WINDOW);
}
else if (mixerType == MixerType.Playback)
{
errorCode = (MMErrors)WaveNative.waveOutOpen(out hWave, WaveNative.WAVE_MAPPER, ref waveFormat, CallbackForm.Handle, IntPtr.Zero, (int)CallBackFlag.CALLBACK_WINDOW);
}
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
// TODO: Log error!!!
//throw new MixerException(errorCode, Audio.GetErrorDescription(FuncName.fnWaveInOpen, errorCode));
return(null);
}
if (mixerType == MixerType.Recording)
{
errorCode = (MMErrors)MixerNative.mixerOpen(out hMixer, hWave, IntPtr.Zero, IntPtr.Zero, ((uint)MIXER_OBJECTFLAG.HWAVEIN));
}
else if (mixerType == MixerType.Playback)
{
errorCode = (MMErrors)MixerNative.mixerOpen(out hMixer, hWave, IntPtr.Zero, IntPtr.Zero, ((uint)MIXER_OBJECTFLAG.HWAVEOUT));
}
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
// TODO: Log error!!!
//throw new MixerException(errorCode, Mixers.GetErrorDescription(FuncName.fnMixerOpen, errorCode));
return(null);
}
int deviceId = -1;
errorCode = (MMErrors)MixerNative.mixerGetID(hMixer, ref deviceId, MIXER_OBJECTFLAG.MIXER);
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
// TODO: Log error!!!
//throw new MixerException(errorCode, Mixers.GetErrorDescription(FuncName.fnMixerGetID, errorCode));
return(null);
}
MIXERCAPS wic = new MIXERCAPS();
errorCode = (MMErrors)MixerNative.mixerGetDevCaps(deviceId, ref wic, Marshal.SizeOf(wic));
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
// TODO: Log error!!!
//throw new MixerException(errorCode, GetErrorDescription(FuncName.fnMixerGetDevCaps, errorCode));
return(null);
}
return(GetAudioDeviceByName(wic.szPname, mixerType == MixerType.Playback));
}
finally
{
if (hMixer != IntPtr.Zero)
{
MixerNative.mixerClose(hMixer);
}
if (hWave != IntPtr.Zero && mixerType == MixerType.Playback)
{
WaveNative.waveOutClose(hWave);
}
if (hWave != IntPtr.Zero && mixerType == MixerType.Recording)
{
WaveNative.waveInClose(hWave);
}
}
}
private void ReloadAudioDevices()
{
if (_reloadDevicesInProgress)
{
return;
}
MMErrors errorCode = 0;
IntPtr hMixer = IntPtr.Zero;
try
{
_reloadDevicesInProgress = true;
var newAudioDevices = new List <AudioDeviceDescriptor>();
MIXERCAPS wic = new MIXERCAPS();
int iNumDevs = MixerNative.mixerGetNumDevs();
for (int i = 0; i < iNumDevs; i++)
{
// Get info about the next device
errorCode = (MMErrors)MixerNative.mixerGetDevCaps(i, ref wic, Marshal.SizeOf(wic));
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
throw new MixerException(errorCode, GetErrorDescription(FuncName.fnMixerGetDevCaps, errorCode));
}
errorCode = (MMErrors)MixerNative.mixerOpen(out hMixer, i, IntPtr.Zero, IntPtr.Zero, 0);
if (errorCode != MMErrors.MMSYSERR_NOERROR)
{
throw new MixerException(errorCode, GetErrorDescription(FuncName.fnMixerOpen, errorCode));
}
MIXERLINE mxl = new MIXERLINE();
mxl.cbStruct = (uint)Marshal.SizeOf(mxl);
var deviceDescriptor = new AudioDeviceDescriptor()
{
DeviceId = i,
Name = wic.szPname
};
foreach (var mixerlineComponenttype in AudioDevice.RecordingLineTypes)
{
mxl.dwComponentType = mixerlineComponenttype;
if (MixerNative.mixerGetLineInfo(hMixer, ref mxl, MIXER_GETLINEINFOF.COMPONENTTYPE) == 0)
{
deviceDescriptor.RecordingSupport = true;
deviceDescriptor.RecordingComponentType = mixerlineComponenttype;
break;
}
}
foreach (var mixerlineComponenttype in AudioDevice.PlaybackLineTypes)
{
mxl.dwComponentType = mixerlineComponenttype;
if (MixerNative.mixerGetLineInfo(hMixer, ref mxl, MIXER_GETLINEINFOF.COMPONENTTYPE) == 0)
{
deviceDescriptor.PlaybackSupport = true;
deviceDescriptor.PlaybackComponentType = mixerlineComponenttype;
break;
}
}
if (deviceDescriptor.PlaybackSupport || deviceDescriptor.RecordingSupport)
{
if (deviceDescriptor.PlaybackSupport && deviceDescriptor.RecordingSupport)
{
var playbackDeviceDescriptor = new AudioDeviceDescriptor()
{
DeviceId = deviceDescriptor.DeviceId,
Name = deviceDescriptor.Name,
PlaybackSupport = true,
RecordingSupport = false,
PlaybackComponentType = deviceDescriptor.PlaybackComponentType
};
var recordingDeviceDescriptor = new AudioDeviceDescriptor()
{
DeviceId = deviceDescriptor.DeviceId,
Name = deviceDescriptor.Name,
PlaybackSupport = false,
RecordingSupport = true,
RecordingComponentType = deviceDescriptor.RecordingComponentType
};
newAudioDevices.Add(playbackDeviceDescriptor);
newAudioDevices.Add(recordingDeviceDescriptor);
}
else
{
newAudioDevices.Add(deviceDescriptor);
}
}
}
if (newAudioDevices.Count > 0 || (_audioDevices.Count > 0 && iNumDevs == 0))
{
UpdateAudioDevicesLists(newAudioDevices);
}
}
finally
{
if (hMixer != IntPtr.Zero)
{
MixerNative.mixerClose(hMixer);
}
_reloadDevicesInProgress = false;
}
}
private static extern int mixerGetDevCapsA(IntPtr uMxId, ref MIXERCAPS pmxcaps, int cbmxcaps);
public static extern int mixerGetDevCaps(IntPtr uMxId, ref MIXERCAPS pmxcaps, uint cbmxcaps);
private static extern int mixerGetDevCapsA(IntPtr uMxId, ref MIXERCAPS
pmxcaps, int cbmxcaps);
private static extern int mixerGetDevCapsA(int uMxId, MIXERCAPS pmxcaps, int cbmxcaps);
public static void RestoreState()
{
int index = 0;
uint[] ctrl_list =
{
MIXERCONTROL_CONTROLTYPE_CUSTOM,
MIXERCONTROL_CONTROLTYPE_BOOLEANMETER,
MIXERCONTROL_CONTROLTYPE_SIGNEDMETER,
MIXERCONTROL_CONTROLTYPE_PEAKMETER,
MIXERCONTROL_CONTROLTYPE_BOOLEAN,
MIXERCONTROL_CONTROLTYPE_ONOFF,
MIXERCONTROL_CONTROLTYPE_MUTE,
MIXERCONTROL_CONTROLTYPE_MONO,
MIXERCONTROL_CONTROLTYPE_LOUDNESS,
MIXERCONTROL_CONTROLTYPE_STEREOENH,
MIXERCONTROL_CONTROLTYPE_BUTTON,
MIXERCONTROL_CONTROLTYPE_DECIBELS,
MIXERCONTROL_CONTROLTYPE_SIGNED,
MIXERCONTROL_CONTROLTYPE_SLIDER,
MIXERCONTROL_CONTROLTYPE_PAN,
MIXERCONTROL_CONTROLTYPE_QSOUNDPAN,
MIXERCONTROL_CONTROLTYPE_SINGLESELECT,
MIXERCONTROL_CONTROLTYPE_MUX,
MIXERCONTROL_CONTROLTYPE_MULTIPLESELECT,
MIXERCONTROL_CONTROLTYPE_MIXER,
MIXERCONTROL_CONTROLTYPE_UNSIGNEDMETER,
MIXERCONTROL_CONTROLTYPE_UNSIGNED,
MIXERCONTROL_CONTROLTYPE_BASS,
MIXERCONTROL_CONTROLTYPE_EQUALIZER,
MIXERCONTROL_CONTROLTYPE_FADER,
MIXERCONTROL_CONTROLTYPE_TREBLE,
MIXERCONTROL_CONTROLTYPE_VOLUME,
MIXERCONTROL_CONTROLTYPE_MICROTIME,
MIXERCONTROL_CONTROLTYPE_MILLITIME,
MIXERCONTROL_CONTROLTYPE_PERCENT,
};
int num_mixers = mixerGetNumDevs();
int mixer = -1;
int retval = -1;
for(int i=0; i<num_mixers; i++) // for each mixer
{
mixerOpen(out mixer, i, 0, 0, 0);
MIXERCAPS mc = new MIXERCAPS();
retval = mixerGetDevCaps(mixer, ref mc, Marshal.SizeOf(mc));
if(retval == MMSYSERR_NOERROR)
{
int num_dest = mc.cDestinations;
for(int j=0; j<num_dest; j++) // for each destination line in this mixer
{
MIXERLINE dst_line = new MIXERLINE();
dst_line.cbStruct = Marshal.SizeOf(dst_line);
dst_line.dwDestination = j;
retval = mixerGetLineInfo(mixer, ref dst_line, MIXER_GETLINEINFOF_DESTINATION);
if(retval == MMSYSERR_NOERROR)
{
for(int k=0; k<30; k++) // for each control in this destination line
{
MIXERLINECONTROLS dst_lc = new MIXERLINECONTROLS();
int mcSize = 152;
dst_lc.pamxctrl = Marshal.AllocCoTaskMem(mcSize);
dst_lc.cbStruct = Marshal.SizeOf(dst_lc);
dst_lc.dwLineID = dst_line.dwLineID;
dst_lc.dwControl = ctrl_list[k];
dst_lc.cControls = 1;
dst_lc.cbmxctrl = mcSize;
// Get the control
retval = mixerGetLineControls(mixer, ref dst_lc, MIXER_GETLINECONTROLSF_ONEBYTYPE);
if(retval == MMSYSERR_NOERROR)
{
MIXERCONTROL ctrl = new MIXERCONTROL();
ctrl.cbStruct = mcSize;
// Copy the control into the destination structure
ctrl = (MIXERCONTROL)Marshal.PtrToStructure(dst_lc.pamxctrl, typeof(MIXERCONTROL));
MIXERCONTROLDETAILS details = new MIXERCONTROLDETAILS();
int size = Marshal.SizeOf(typeof(MIXERCONTROLDETAILS_SIGNED));
details.dwControlID = ctrl.dwControlID;
details.cbDetails = size;
details.item = ctrl.cMultipleItems;
if(details.item > 0) size *= details.item;
details.paDetails = Marshal.AllocCoTaskMem(size);
details.cbStruct = Marshal.SizeOf(details);
details.cChannels = 1;
if(details.item > 0)
{
if(index != save.Count)
{
int rec_index = (int)save[index];
int[] val = new int[details.item];
for(int m=0; m<details.item; m++)
{
if(m == rec_index) val[m] = 1;
else val[m] = 0;
}
Marshal.Copy(val, 0, details.paDetails, details.item);
retval = mixerSetControlDetails(mixer, ref details, MIXER_GETCONTROLDETAILSF_VALUE);
if(retval == MMSYSERR_NOERROR)
index++;
}
}
else
{
MIXERCONTROLDETAILS_UNSIGNED val = new MIXERCONTROLDETAILS_UNSIGNED();
val.dwValue = (int)save[index];
Marshal.StructureToPtr(val, details.paDetails, false);
retval = mixerSetControlDetails(mixer, ref details, MIXER_GETCONTROLDETAILSF_VALUE);
if(retval == MMSYSERR_NOERROR)
index++;
}
Marshal.FreeCoTaskMem(details.paDetails);
}
Marshal.FreeCoTaskMem(dst_lc.pamxctrl);
}
int num_src = dst_line.cConnections;
for(int k=0; k<num_src; k++) // for each source line connected to this destination
{
MIXERLINE src_line = new MIXERLINE();
src_line.cbStruct = dst_line.cbStruct;
src_line.dwDestination = dst_line.dwDestination;
src_line.dwSource = k;
retval = mixerGetLineInfo(mixer, ref src_line, MIXER_GETLINEINFOF_SOURCE);
if(retval == MMSYSERR_NOERROR)
{
for(int l=0; l<30; l++) // for each control in this source line
{
MIXERLINECONTROLS src_lc = new MIXERLINECONTROLS();
int mcSize = 152;
src_lc.pamxctrl = Marshal.AllocCoTaskMem(mcSize);
src_lc.cbStruct = Marshal.SizeOf(src_lc);
src_lc.dwLineID = src_line.dwLineID;
src_lc.dwControl = ctrl_list[l];
src_lc.cControls = 1;
src_lc.cbmxctrl = mcSize;
// Get the control
retval = mixerGetLineControls(mixer, ref src_lc, MIXER_GETLINECONTROLSF_ONEBYTYPE);
if(retval == MMSYSERR_NOERROR)
{
MIXERCONTROL ctrl = new MIXERCONTROL();
ctrl.cbStruct = mcSize;
// Copy the control into the destination structure
ctrl = (MIXERCONTROL)Marshal.PtrToStructure(src_lc.pamxctrl, typeof(MIXERCONTROL));
MIXERCONTROLDETAILS details = new MIXERCONTROLDETAILS();
int size;
if(l<20) size = Marshal.SizeOf(typeof(MIXERCONTROLDETAILS_SIGNED));
else size = Marshal.SizeOf(typeof(MIXERCONTROLDETAILS_UNSIGNED));
details.dwControlID = ctrl.dwControlID;
details.paDetails = Marshal.AllocCoTaskMem(size);
details.cbStruct = Marshal.SizeOf(details);
details.cChannels = 1;
details.item = ctrl.cMultipleItems;
details.cbDetails = size;
if(details.item > 0)
{
int rec_index = (int)save[index];
MIXERCONTROLDETAILS_UNSIGNED[] val = new MIXERCONTROLDETAILS_UNSIGNED[details.item];
for(int m=0; m<details.item; m++)
val[m] = new MIXERCONTROLDETAILS_UNSIGNED();
val[rec_index].dwValue = 1;
Marshal.StructureToPtr(val[0], details.paDetails, false);
}
else
{
MIXERCONTROLDETAILS_UNSIGNED val = new MIXERCONTROLDETAILS_UNSIGNED();
val.dwValue = (int)save[index];
Marshal.StructureToPtr(val, details.paDetails, false);
}
retval = mixerSetControlDetails(mixer, ref details, MIXER_GETCONTROLDETAILSF_VALUE);
if(retval == MMSYSERR_NOERROR)
index++;
Marshal.FreeCoTaskMem(details.paDetails);
}
Marshal.FreeCoTaskMem(src_lc.pamxctrl);
}
}
}
}
}
}
}
mixerClose(mixer);
}
public static extern int mixerGetDevCaps(int uMxId, ref MIXERCAPS pmxcaps, int cbmxcaps);
public static string GetDevName(int mixer)
{
MIXERCAPS mc = new MIXERCAPS();
int retval = mixerGetDevCaps(mixer, ref mc, Marshal.SizeOf(mc));
if(retval != MMSYSERR_NOERROR)
return "";
return mc.szPname;
}
public static string GetLineName(int mixer, uint dst_type, uint src_type)
{
MIXERCAPS mc = new MIXERCAPS();
int retval = mixerGetDevCaps(mixer, ref mc, Marshal.SizeOf(mc));
if(retval != MMSYSERR_NOERROR)
return "";
int num_dest = mc.cDestinations;
for(int j=0; j<num_dest; j++) // for each destination line
{
MIXERLINE dst_line = new MIXERLINE();
dst_line.cbStruct = Marshal.SizeOf(dst_line);
dst_line.dwDestination = j;
retval = mixerGetLineInfo(mixer, ref dst_line, MIXER_GETLINEINFOF_DESTINATION);
if(retval == MMSYSERR_NOERROR && dst_line.dwComponentType == dst_type)
{
if(src_type == 0)
return dst_line.szName;
else
{
int num_src = dst_line.cConnections;
for(int k=0; k<num_src; k++) // for all source lines connected to this destination
{
MIXERLINE src_line = new MIXERLINE();
src_line.cbStruct = dst_line.cbStruct;
src_line.dwDestination = dst_line.dwDestination;
src_line.dwSource = k;
retval = mixerGetLineInfo(mixer, ref src_line, MIXER_GETLINEINFOF_SOURCE);
if(retval == MMSYSERR_NOERROR && src_line.dwComponentType == src_type)
return src_line.szName;
}
}
}
}
return "";
}
private static bool GetControlByType(int mixer, uint dst_type, uint src_type, uint ctrl_type, out MIXERCONTROL outCtrl)
{
outCtrl = new MIXERCONTROL();
MIXERCAPS mc = new MIXERCAPS();
int retval = mixerGetDevCaps(mixer, ref mc, Marshal.SizeOf(mc));
if(retval != MMSYSERR_NOERROR)
return false;
int num_dest = mc.cDestinations;
for(int j=0; j<num_dest; j++) // for each destination line
{
MIXERLINE dst_line = new MIXERLINE();
dst_line.cbStruct = Marshal.SizeOf(dst_line);
dst_line.dwDestination = j;
retval = mixerGetLineInfo(mixer, ref dst_line, MIXER_GETLINEINFOF_DESTINATION);
if(retval == MMSYSERR_NOERROR && dst_line.dwComponentType == dst_type)
{
if(src_type == 0)
{
MIXERLINECONTROLS dst_lc = new MIXERLINECONTROLS();
int mcSize = 152;
dst_lc.pamxctrl = Marshal.AllocCoTaskMem(mcSize);
dst_lc.cbStruct = Marshal.SizeOf(dst_lc);
dst_lc.dwLineID = dst_line.dwLineID;
dst_lc.dwControl = ctrl_type;
dst_lc.cControls = 1;
dst_lc.cbmxctrl = mcSize;
// Get the control
retval = mixerGetLineControls(mixer, ref dst_lc, MIXER_GETLINECONTROLSF_ONEBYTYPE);
if(retval == MMSYSERR_NOERROR)
{
MIXERCONTROL ctrl = new MIXERCONTROL();
ctrl.cbStruct = mcSize;
// Copy the control into the destination structure
ctrl = (MIXERCONTROL)Marshal.PtrToStructure(dst_lc.pamxctrl, typeof(MIXERCONTROL));
outCtrl = ctrl;
Marshal.FreeCoTaskMem(dst_lc.pamxctrl);
return true;
}
Marshal.FreeCoTaskMem(dst_lc.pamxctrl);
return false;
}
else
{
int num_src = dst_line.cConnections;
for(int k=0; k<num_src; k++) // for all source lines connected to this destination
{
MIXERLINE src_line = new MIXERLINE();
src_line.cbStruct = dst_line.cbStruct;
src_line.dwDestination = dst_line.dwDestination;
src_line.dwSource = k;
retval = mixerGetLineInfo(mixer, ref src_line, MIXER_GETLINEINFOF_SOURCE);
if(retval == MMSYSERR_NOERROR && src_line.dwComponentType == src_type)
{
MIXERLINECONTROLS src_lc = new MIXERLINECONTROLS();
int mcSize = 152;
src_lc.pamxctrl = Marshal.AllocCoTaskMem(mcSize);
src_lc.cbStruct = Marshal.SizeOf(src_lc);
src_lc.dwLineID = src_line.dwLineID;
src_lc.dwControl = ctrl_type;
src_lc.cControls = 1;
src_lc.cbmxctrl = mcSize;
// Get the control
retval = mixerGetLineControls(mixer, ref src_lc, MIXER_GETLINECONTROLSF_ONEBYTYPE);
if(retval == MMSYSERR_NOERROR)
{
MIXERCONTROL ctrl = new MIXERCONTROL();
ctrl.cbStruct = mcSize;
// Copy the control into the destination structure
ctrl = (MIXERCONTROL)Marshal.PtrToStructure(src_lc.pamxctrl, typeof(MIXERCONTROL));
outCtrl = ctrl;
Marshal.FreeCoTaskMem(src_lc.pamxctrl);
return true;
}
Marshal.FreeCoTaskMem(src_lc.pamxctrl);
return false;
}
}
}
}
}
return false;
}
public static extern int mixerGetDevCaps(int uMxId, ref MIXERCAPS pmxcaps, int cbmxcaps);
public static bool InitSoundCard2(int mixerID)
{
int mixer;
int retval = -1;
retval = mixerOpen(out mixer, mixerID, 0, 0, 0);
if(retval != MMSYSERR_NOERROR)
return false;
MIXERCAPS mc = new MIXERCAPS();
retval = mixerGetDevCaps(mixer, ref mc, Marshal.SizeOf(mc));
if(retval != MMSYSERR_NOERROR)
goto failed;
MIXERLINE dst_line = new MIXERLINE();
dst_line.cbStruct = Marshal.SizeOf(dst_line);
dst_line.dwDestination = 0;
retval = mixerGetLineInfo(mixer, ref dst_line, MIXER_GETLINEINFOF_DESTINATION);
if(retval != MMSYSERR_NOERROR)
goto failed;
for(int i=0; i<dst_line.cConnections; i++)
{
MIXERCONTROL ctrl = new MIXERCONTROL();
GetControlByID(mixerID, 0, i, MIXERCONTROL_CONTROLTYPE_MUTE, out ctrl);
SetBool(mixerID, ctrl, true);
}
mixerClose(mixer);
SetMainVolume(mixerID, 100);
SetWaveOutVolume(mixerID, 100);
SetMainMute(mixerID, false);
SetWaveOutMute(mixerID, false);
return true;
failed:
mixerClose(mixer);
return false;
}
public static extern MmResult mixerGetDevCaps(IntPtr nMixerID, ref MIXERCAPS mixerCaps, Int32 mixerCapsSize);
public static extern MmResult mixerGetDevCaps(IntPtr nMixerID, ref MIXERCAPS mixerCaps, Int32 mixerCapsSize);
public static extern uint mixerGetDevCaps(uint uMxID, ref MIXERCAPS pmxcaps, uint cbmxcaps);
protected static extern int mixerGetDevCapsA(int uMxId, MIXERCAPS pmxcaps, int cbmxcaps);