The attached patch (should) provide(s) a way to select the DirectSound
devices on the host for audio input and output for a VM. It uses two
environment variables (DEVICE_GUID_OUT and DEVICE_GUID_IN) for this
purpose. I would rather allow this to be configurable from the
configuration file, but I can not find a (simple) way to get anything
from the configuration file to the audio driver. Using an environment
variable will work for my usage.
I have not tested this patch, as I have no Windows build environment.
Could anyone (try to) build VirtualBox with this patch for Windows (x32)?
Thank you,
Ivo Smits
Index: src/VBox/Devices/Audio/dsoundaudio.c
===================================================================
--- src/VBox/Devices/Audio/dsoundaudio.c (revision 39122)
+++ src/VBox/Devices/Audio/dsoundaudio.c (working copy)
@@ -53,6 +53,8 @@
int bufsize_out;
audsettings_t settings;
int latency_millis;
+ const char *device_guid_out;
+ const char *device_guid_in;
} conf = {
1,
1,
@@ -65,7 +67,9 @@
2,
AUD_FMT_S16
},
- 10
+ 10,
+ NULL,
+ NULL
};
typedef struct {
@@ -1016,6 +1020,8 @@
int err;
HRESULT hr;
dsound *s = &glob_dsound;
+ RTUUID devguid;
+ LPCGUID devguidp;
hr = CoInitializeEx (NULL, COINIT_MULTITHREADED);
if (FAILED (hr)) {
@@ -1046,7 +1052,16 @@
return NULL;
}
- hr = IDirectSound_Initialize (s->dsound, NULL);
+ if (conf.device_guid_out) {
+ hr = RTUuidFromStr(&devguid, conf.device_guid_out);
+ if (FAILED (hr)) {
+ LogRel(("DSound: Could not parse DirectSound output device
GUID\n"));
+ }
+ devguidp = (LPCGUID)&devguid;
+ } else {
+ devguidp = NULL
+ }
+ hr = IDirectSound_Initialize (s->dsound, devguidp);
if (FAILED (hr)) {
#ifndef VBOX
dsound_logerr (hr, "Could not initialize DirectSound\n");
@@ -1080,7 +1095,16 @@
#endif
}
else {
- hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
+ if (conf.device_guid_in) {
+ hr = RTUuidFromStr(&devguid, conf.device_guid_in);
+ if (FAILED (hr)) {
+ LogRel(("DSound: Could not parse DirectSound input device
GUID\n"));
+ }
+ devguidp = (LPCGUID)&devguid;
+ } else {
+ devguidp = NULL
+ }
+ hr = IDirectSoundCapture_Initialize (s->dsound_capture, devguidp);
if (FAILED (hr)) {
#ifndef VBOX
dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
@@ -1128,6 +1152,10 @@
"(undocumented)", NULL, 0},
{"BUFSIZE_IN", AUD_OPT_INT, &conf.bufsize_in,
"(undocumented)", NULL, 0},
+ {"DEVICE_GUID_OUT", AUD_OPT_STR, &conf.device_guid_out,
+ "DirectSound output device GUID", NULL, 0},
+ {"DEVICE_GUID_IN", AUD_OPT_STR, &conf.device_guid_in,
+ "DirectSound input device GUID", NULL, 0},
{NULL, 0, NULL, NULL, NULL, 0}
};
_______________________________________________
vbox-dev mailing list
[email protected]
https://www.virtualbox.org/mailman/listinfo/vbox-dev
