int OpenMixer_Win_MME(px_mixer *Px, int index)
{
HWAVEIN hWaveIn;
HWAVEOUT hWaveOut;
MMRESULT res;
UINT deviceIn = UINT_MAX;
UINT deviceOut = UINT_MAX;
hWaveIn = PaWinMME_GetStreamInputHandle(Px->pa_stream, 0);
hWaveOut = PaWinMME_GetStreamOutputHandle(Px->pa_stream, 0);
if (hWaveIn) {
res = mixerGetID((HMIXEROBJ) hWaveIn,
&deviceIn,
MIXER_OBJECTF_HWAVEIN);
if (res != MMSYSERR_NOERROR) {
return FALSE;
}
}
if (hWaveOut) {
res = mixerGetID((HMIXEROBJ) hWaveOut,
&deviceOut,
MIXER_OBJECTF_HWAVEOUT);
if (res != MMSYSERR_NOERROR) {
return FALSE;
}
}
if (open_mixers(Px, deviceIn, deviceOut)) {
return TRUE;
}
return FALSE;
}
int OpenMixer_Win_DirectSound(px_mixer *Px, int index)
{
DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA desc;
HMODULE hDsound = INVALID_HANDLE_VALUE;
GCO DllGetClassObject;
IClassFactory *pcf = NULL;
IKsPropertySet *pps = NULL;
HRESULT hr;
ULONG bytes;
LPGUID guidIn;
LPGUID guidOut;
UINT deviceIn = -1;
UINT deviceOut = -1;
guidIn = PaWinDS_GetStreamInputGUID(Px->pa_stream);
guidOut = PaWinDS_GetStreamOutputGUID(Px->pa_stream);
do {
hDsound = LoadLibrary("dsound.dll");
if (hDsound == NULL) {
break;
}
DllGetClassObject = (GCO) GetProcAddress(hDsound, "DllGetClassObject");
if (DllGetClassObject == NULL) {
break;
}
hr = DllGetClassObject(&CLSID_DirectSoundPrivate,
&IID_IClassFactory,
(void **)(&pcf));
if (hr || pcf == NULL) {
break;
}
hr = IClassFactory_CreateInstance(pcf,
NULL,
&IID_IKsPropertySet,
(void **)(&pps));
if (hr || pps == NULL) {
break;
}
if (guidIn) {
memcpy(&desc.DeviceId, guidIn, sizeof(desc.DeviceId));
desc.DataFlow = DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE;
hr = IKsPropertySet_Get(pps,
&DSPROPSETID_DirectSoundDevice,
DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION,
NULL,
0,
&desc,
sizeof(desc),
&bytes);
if (FAILED(hr)) {
break;
}
deviceIn = desc.WaveDeviceId;
}
if (guidOut) {
memcpy(&desc.DeviceId, guidOut, sizeof(desc.DeviceId));
desc.DataFlow = DIRECTSOUNDDEVICE_DATAFLOW_RENDER;
hr = IKsPropertySet_Get(pps,
&DSPROPSETID_DirectSoundDevice,
DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION,
NULL,
0,
&desc,
sizeof(desc),
&bytes);
if (FAILED(hr)) {
break;
}
deviceOut = desc.WaveDeviceId;
}
if (open_mixers(Px, deviceIn, deviceOut))
{
return TRUE;
}
} while( FALSE );
if (pps) {
IUnknown_Release(pps);
}
if (pcf) {
IUnknown_Release(pcf);
}
if (hDsound != INVALID_HANDLE_VALUE) {
FreeLibrary(hDsound);
}
return FALSE;
}
