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audacity/lib-src/portaudio-v19/wasapi-loopback.patch
Leland Lucius 6056618220 Regenerate and reapply WASAPI loopback patch
2016-03-08 02:00:05 -06:00

194 lines
7.9 KiB
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diff --git a/lib-src/portaudio-v19/include/pa_win_wasapi.h b/lib-src/portaudio-v19/include/pa_win_wasapi.h
index 1087157..e52d0a7 100644
--- a/lib-src/portaudio-v19/include/pa_win_wasapi.h
+++ b/lib-src/portaudio-v19/include/pa_win_wasapi.h
@@ -319,6 +319,16 @@ 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.
diff --git a/lib-src/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c b/lib-src/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
index 0026033..2e9dca8 100644
--- a/lib-src/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
+++ b/lib-src/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
@@ -375,6 +375,9 @@ typedef struct PaWasapiDeviceInfo
// Formfactor
EndpointFormFactor formFactor;
+
+ // Loopback indicator
+ int loopBack;
}
PaWasapiDeviceInfo;
@@ -1179,6 +1182,8 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
HRESULT hr = S_OK;
IMMDeviceCollection* pEndPoints = NULL;
UINT i;
+ UINT renderCount;
+ UINT devIndex;
if (!SetupAVRT())
{
@@ -1275,6 +1280,19 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
}
}
+ hr = IMMDeviceEnumerator_EnumAudioEndpoints(paWasapi->enumerator, eRender, DEVICE_STATE_ACTIVE, &pEndPoints);
+ // We need to set the result to a value otherwise we will return paNoError
+ // [IF_FAILED_JUMP(hResult, error);]
+ IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
+
+ hr = IMMDeviceCollection_GetCount(pEndPoints, &renderCount);
+ // We need to set the result to a value otherwise we will return paNoError
+ // [IF_FAILED_JUMP(hResult, error);]
+ IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
+
+ SAFE_RELEASE(pEndPoints);
+ pEndPoints = NULL;
+
hr = IMMDeviceEnumerator_EnumAudioEndpoints(paWasapi->enumerator, eAll, DEVICE_STATE_ACTIVE, &pEndPoints);
// We need to set the result to a value otherwise we will return paNoError
// [IF_FAILED_JUMP(hResult, error);]
@@ -1285,6 +1303,8 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
// [IF_FAILED_JUMP(hResult, error);]
IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
+ paWasapi->deviceCount += renderCount;
+
paWasapi->devInfo = (PaWasapiDeviceInfo *)PaUtil_AllocateMemory(sizeof(PaWasapiDeviceInfo) * paWasapi->deviceCount);
if (paWasapi->devInfo == NULL)
{
@@ -1313,7 +1333,7 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
goto error;
}
- for (i = 0; i < paWasapi->deviceCount; ++i)
+ for (devIndex = 0, i = 0; i < paWasapi->deviceCount; ++i, ++devIndex)
{
DWORD state = 0;
PaDeviceInfo *deviceInfo = &deviceInfoArray[i];
@@ -1323,7 +1343,7 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
PA_DEBUG(("WASAPI: device idx: %02d\n", i));
PA_DEBUG(("WASAPI: ---------------\n"));
- hr = IMMDeviceCollection_Item(pEndPoints, i, &paWasapi->devInfo[i].device);
+ hr = IMMDeviceCollection_Item(pEndPoints, devIndex, &paWasapi->devInfo[i].device);
// We need to set the result to a value otherwise we will return paNoError
// [IF_FAILED_JUMP(hResult, error);]
IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
@@ -1513,6 +1533,43 @@ PaError PaWasapi_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
(*hostApi)->deviceInfos[i] = deviceInfo;
++(*hostApi)->info.deviceCount;
+
+ if (paWasapi->devInfo[i].flow == eRender)
+ {
+ char *deviceName;
+ UINT deviceNameLen;
+
+ memcpy(&deviceInfoArray[i + 1], deviceInfo, sizeof(*deviceInfo));
+ memcpy(&paWasapi->devInfo[i + 1], &paWasapi->devInfo[i], sizeof(*paWasapi->devInfo));
+
+ i++;
+ paWasapi->devInfo[i].loopBack = 1;
+
+ deviceInfo = &deviceInfoArray[i];
+
+ deviceInfo->maxInputChannels = deviceInfo->maxOutputChannels;
+ deviceInfo->defaultHighInputLatency = deviceInfo->defaultHighOutputLatency;
+ deviceInfo->defaultLowInputLatency = deviceInfo->defaultLowOutputLatency;
+ deviceInfo->maxOutputChannels = 0;
+ deviceInfo->defaultHighOutputLatency = 0;
+ deviceInfo->defaultLowOutputLatency = 0;
+ PA_DEBUG(("WASAPI:%d| def.SR[%d] max.CH[%d] latency{hi[%f] lo[%f]}\n", i, (UINT32)deviceInfo->defaultSampleRate,
+ deviceInfo->maxInputChannels, (float)deviceInfo->defaultHighInputLatency, (float)deviceInfo->defaultLowInputLatency));
+
+ IMMDevice_AddRef(paWasapi->devInfo[i].device);
+
+ deviceName = (char *)PaUtil_GroupAllocateMemory(paWasapi->allocations, MAX_STR_LEN + 1);
+ if (deviceName == NULL)
+ {
+ result = paInsufficientMemory;
+ goto error;
+ }
+ _snprintf(deviceName, MAX_STR_LEN-1, "%s (loopback)", deviceInfo->name);
+ deviceInfo->name = deviceName;
+
+ (*hostApi)->deviceInfos[i] = deviceInfo;
+ ++(*hostApi)->info.deviceCount;
+ }
}
}
@@ -1691,6 +1748,29 @@ const wchar_t *PaWasapi_GetOutputDeviceID( PaStream* s )
}
// ------------------------------------------------------------------------------------------
+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 )
{
PaWasapiStream *stream = (PaWasapiStream *)pStream;
@@ -2336,7 +2416,7 @@ static HRESULT CreateAudioClient(PaWasapiStream *pStream, PaWasapiSubStream *pSu
}*/
// select mixer
- pSub->monoMixer = _GetMonoToStereoMixer(WaveToPaFormat(&pSub->wavex), (pInfo->flow == eRender ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
+ pSub->monoMixer = _GetMonoToStereoMixer(WaveToPaFormat(&pSub->wavex), (output ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
if (pSub->monoMixer == NULL)
{
(*pa_error) = paInvalidChannelCount;
@@ -2621,7 +2701,7 @@ static HRESULT CreateAudioClient(PaWasapiStream *pStream, PaWasapiSubStream *pSu
}*/
// Select mixer
- pSub->monoMixer = _GetMonoToStereoMixer(WaveToPaFormat(&pSub->wavex), (pInfo->flow == eRender ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
+ pSub->monoMixer = _GetMonoToStereoMixer(WaveToPaFormat(&pSub->wavex), (output ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
if (pSub->monoMixer == NULL)
{
(*pa_error) = paInvalidChannelCount;
@@ -2941,6 +3021,9 @@ static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
if (fullDuplex)
stream->in.streamFlags = 0; // polling interface is implemented for full-duplex mode also
+ if (info->flow == eRender)
+ stream->in.streamFlags |= AUDCLNT_STREAMFLAGS_LOOPBACK;
+
// Fill parameters for Audio Client creation
stream->in.params.device_info = info;
stream->in.params.stream_params = (*inputParameters);
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