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Code Issues Releases Wiki Activity

Add volume support for WASAPI.

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Note:  Not all devices (like my RME Babyface) allow you to control
the volume via WASAPI.  So, even though volume adjustments appear
to work visually (sliders move in volume control panel), they may
not actually change.
This commit is contained in:
lllucius
2013-09-24 04:54:44 +00:00
parent 4ce2643d5f
commit f8a4adf713
6 changed files with 278 additions and 52 deletions
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55
lib-src/portmixer/portaudio.patch
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@@ -341,3 +341,58 @@ diff -wruN portaudio/src/hostapi/oss/pa_unix_oss.c portaudio-v19/src/hostapi/oss
+
+ return NULL;
+}
diff -wruN orig/portaudio-v19/include/pa_win_wasapi.h portaudio-v19/include/pa_win_wasapi.h
--- orig/portaudio-v19/include/pa_win_wasapi.h 2013-09-23 23:44:18.192843200 -0500
+++ portaudio-v19/include/pa_win_wasapi.h 2013-09-23 23:47:03.705310000 -0500
@@ -272,6 +272,15 @@
*/
int PaWasapi_IsLoopback( PaDeviceIndex nDevice );
+/** Returns Windows device ID.
+
+ @param nDevice device index.
+
+ @return 0 = Not loopback, 1 = loopback, < 0 = PaErrorCode
+ if PortAudio is not initialized or an error is encountered.
+*/
+const wchar_t *PaWasapi_GetInputDeviceID( PaStream* s );
+const wchar_t *PaWasapi_GetOutputDeviceID( PaStream* s );
/** Boost thread priority of calling thread (MMCSS). Use it for Blocking Interface only for thread
which makes calls to Pa_WriteStream/Pa_ReadStream.
diff -wruN orig/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c
--- orig/portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c 2013-09-23 23:44:15.266675900 -0500
+++ portaudio-v19/src/hostapi/wasapi/pa_win_wasapi.c 2013-09-23 23:47:03.709310200 -0500
@@ -1608,6 +1608,32 @@
}
// ------------------------------------------------------------------------------------------
+const wchar_t *PaWasapi_GetInputDeviceID( PaStream* s )
+{
+ PaWasapiStream *stream = (PaWasapiStream *)s;
+ if (stream == NULL)
+ return NULL;
+
+ if (stream->in.params.device_info)
+ return stream->in.params.device_info->szDeviceID;
+
+ return NULL;
+}
+
+// ------------------------------------------------------------------------------------------
+const wchar_t *PaWasapi_GetOutputDeviceID( PaStream* s )
+{
+ PaWasapiStream *stream = (PaWasapiStream *)s;
+ if (stream == NULL)
+ return NULL;
+
+ if (stream->out.params.device_info)
+ return stream->out.params.device_info->szDeviceID;
+
+ return NULL;
+}
+
+// ------------------------------------------------------------------------------------------
PaError PaWasapi_GetFramesPerHostBuffer( PaStream *pStream, unsigned int *nInput, unsigned int *nOutput )
{
PaWasapiStream *stream = (PaWasapiStream *)pStream;