audacia
/
audacia
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
audacia/lib-src/portaudio-v19/wasapi-loopback.patch

182 lines
7.3 KiB
Diff
Raw Permalink Blame History

diff --git a/lib-src/portaudio-v19/include/pa_win_wasapi.h b/lib-src/portaudio-v19/include/pa_win_wasapi.h
index a4416b121..1999e8dad 100644
--- a/lib-src/portaudio-v19/include/pa_win_wasapi.h
+++ b/lib-src/portaudio-v19/include/pa_win_wasapi.h
@@ -564,6 +564,15 @@ const wchar_t *PaWasapi_GetInputDeviceID( PaStream *s );
*/
const wchar_t *PaWasapi_GetOutputDeviceID( PaStream *s );
+/** 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 );
+
/*
IMPORTANT:
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 f64049ad5..4b28f7f0b 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
@@ -449,6 +449,9 @@ typedef struct PaWasapiDeviceInfo
// Formfactor
EndpointFormFactor formFactor;
+
+ // Loopback indicator
+ int loopBack;
}
PaWasapiDeviceInfo;
@@ -1674,6 +1677,8 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
IMMDeviceEnumerator *pEnumerator = NULL;
#endif
IAudioClient *tmpClient;
+ UINT renderCount;
+ INT devIndex;
// Make sure device list empty
if ((paWasapi->deviceCount != 0) || (hostApi->info.deviceCount != 0))
@@ -1738,6 +1743,19 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
}
}
+ hr = IMMDeviceEnumerator_EnumAudioEndpoints(pEnumerator, 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(pEnumerator, eAll, DEVICE_STATE_ACTIVE, &pEndPoints);
// We need to set the result to a value otherwise we will return paNoError
// [IF_FAILED_JUMP(hResult, error);]
@@ -1748,6 +1766,7 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
// [IF_FAILED_JUMP(hResult, error);]
IF_FAILED_INTERNAL_ERROR_JUMP(hr, result, error);
+ paWasapi->deviceCount += renderCount;
#else
// Determine number of available devices by activating AudioClient for render and capture data flows
if (SUCCEEDED(ActivateAudioInterface_WINRT(eRender, GetAudioClientIID(), &tmpClient)))
@@ -1797,7 +1816,7 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
}
memset(deviceInfoArray, 0, sizeof(PaDeviceInfo) * deviceCount);
- for (i = 0; i < paWasapi->deviceCount; ++i)
+ for (devIndex = 0, i = 0; i < paWasapi->deviceCount; ++i, ++devIndex)
{
PaDeviceInfo *deviceInfo = &deviceInfoArray[i];
deviceInfo->structVersion = 2;
@@ -1807,7 +1826,7 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
PA_DEBUG(("WASAPI: ---------------\n"));
#ifndef PA_WINRT
- 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);
@@ -2039,6 +2058,42 @@ static PaError CreateDeviceList(PaWasapiHostApiRepresentation *paWasapi, PaHostA
hostApi->deviceInfos[i] = deviceInfo;
++hostApi->info.deviceCount;
+
+ if (paWasapi->devInfo[i].flow == eRender)
+ {
+ char *deviceName;
+
+ 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;
+ }
}
#if defined(PA_WASAPI_MAX_CONST_DEVICE_COUNT) && (PA_WASAPI_MAX_CONST_DEVICE_COUNT > 0)
@@ -2392,6 +2447,29 @@ int PaWasapi_GetDeviceRole( PaDeviceIndex device )
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 *pInput, unsigned int *pOutput )
{
@@ -3055,7 +3133,7 @@ static HRESULT CreateAudioClient(PaWasapiStream *pStream, PaWasapiSubStream *pSu
if ((params->channelCount == 1) && (pSub->wavex.Format.nChannels == 2))
{
// select mixer
- pSub->monoMixer = GetMonoToStereoMixer(&pSub->wavex, (pInfo->flow == eRender ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
+ pSub->monoMixer = GetMonoToStereoMixer(&pSub->wavex, (output ? MIX_DIR__1TO2 : MIX_DIR__2TO1_L));
if (pSub->monoMixer == NULL)
{
(*pa_error) = paInvalidChannelCount;
@@ -3618,6 +3696,9 @@ static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
((inputStreamInfo != NULL) && (inputStreamInfo->flags & paWinWasapiAutoConvert)))
stream->in.streamFlags |= (AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM | AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY);
+ 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);
Reference in New Issue View Git Blame Copy Permalink