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Code Issues Releases Wiki Activity

Temporary workaround to provide (only) WASAPI loopback input devices.

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This commit is contained in:
lllucius
2013-08-30 04:17:02 +00:00
parent d63709908a
commit 96afea6e4b
3 changed files with 46 additions and 0 deletions
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10
lib-src/portaudio-v19/include/pa_win_wasapi.h
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@@ -263,6 +263,16 @@ int PaWasapi_GetDeviceDefaultFormat( void *pFormat, unsigned int nFormatSize, Pa
int/*PaWasapiDeviceRole*/ PaWasapi_GetDeviceRole( PaDeviceIndex nDevice );
/** Returns device loopback indicator.
@param nDevice device index.
@return 0 = Not loopback, 1 = loopback, < 0 = PaErrorCode
if PortAudio is not initialized or an error is encountered.
*/
int PaWasapi_IsLoopback( PaDeviceIndex nDevice );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.

28
lib-src/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
View File

@@ -357,6 +357,9 @@ typedef struct PaWasapiDeviceInfo
// Formfactor
EndpointFormFactor formFactor;
// Loopback indicator
int loopBack;
}
PaWasapiDeviceInfo;
@@ -1403,6 +1406,8 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
memcpy(&paWasapi->devInfo[i + 1], &paWasapi->devInfo[i], sizeof(*paWasapi->devInfo));
i++;
paWasapi->devInfo[i].loopBack = 1;
deviceInfo = &deviceInfoArray[i];
deviceInfo->maxInputChannels = deviceInfo->maxOutputChannels;
@@ -1579,6 +1584,29 @@ int PaWasapi_GetDeviceRole( PaDeviceIndex nDevice )
return paWasapi->devInfo[ index ].formFactor;
}
// ------------------------------------------------------------------------------------------
int PaWasapi_IsLoopback( PaDeviceIndex nDevice )
{
PaError ret;
PaDeviceIndex index;
// Get API
PaWasapiHostApiRepresentation *paWasapi = _GetHostApi(&ret);
if (paWasapi == NULL)
return paNotInitialized;
// Get device index
ret = PaUtil_DeviceIndexToHostApiDeviceIndex(&index, nDevice, &paWasapi->inheritedHostApiRep);
if (ret != paNoError)
return ret;
// Validate index
if ((UINT32)index >= paWasapi->deviceCount)
return paInvalidDevice;
return paWasapi->devInfo[ index ].loopBack;
}
// ------------------------------------------------------------------------------------------
PaError PaWasapi_GetFramesPerHostBuffer( PaStream *pStream, unsigned int *nInput, unsigned int *nOutput )
{