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directsoundsrc: Add 'device-name' property for selecting a audio device

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=706574
This commit is contained in:
Kishore Arepalli 2013-08-22 13:45:59 +02:00 committed by Sebastian Dröge
parent e9581919ff
commit 9df9ee426e
2 changed files with 74 additions and 26 deletions
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82
sys/directsound/gstdirectsoundsrc.c
View file

@ -84,7 +84,7 @@ GST_DEBUG_CATEGORY_STATIC (directsoundsrc_debug);
enum
{
PROP_0,
PROP_DEVICE
PROP_DEVICE_NAME
};
static HRESULT (WINAPI * pDSoundCaptureCreate) (LPGUID,
@ -139,6 +139,9 @@ gst_directsound_src_finalize (GObject * object)
g_mutex_clear (&dsoundsrc->dsound_lock);
g_free(dsoundsrc->device_name);
g_free(dsoundsrc->device_guid);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -185,6 +188,12 @@ gst_directsound_src_class_init (GstDirectSoundSrcClass * klass)
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&directsound_src_src_factory));
g_object_class_install_property
(gobject_class, PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "Device name",
"Human-readable name of the sound device", NULL,
G_PARAM_READWRITE));
}
static GstCaps *
@ -202,16 +211,20 @@ static void
gst_directsound_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
// GstDirectSoundSrc *src = GST_DIRECTSOUND_SRC (object);
GstDirectSoundSrc *src = GST_DIRECTSOUND_SRC (object);
GST_DEBUG ("set property");
switch (prop_id) {
#if 0
/* FIXME */
case PROP_DEVICE:
src->device = g_value_get_uint (value);
case PROP_DEVICE_NAME:
if (src->device_name) {
g_free (src->device_name);
src->device_name = NULL;
}
if (g_value_get_string (value)) {
src->device_name = g_strdup (g_value_get_string (value));
}
break;
#endif
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -222,19 +235,14 @@ static void
gst_directsound_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
#if 0
GstDirectSoundSrc *src = GST_DIRECTSOUND_SRC (object);
#endif
GST_DEBUG ("get property");
switch (prop_id) {
#if 0
/* FIXME */
case PROP_DEVICE:
g_value_set_uint (value, src->device);
case PROP_DEVICE_NAME:
g_value_set_string (value, src->device_name);
break;
#endif
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -252,6 +260,34 @@ gst_directsound_src_init (GstDirectSoundSrc * src)
{
GST_DEBUG_OBJECT (src, "initializing directsoundsrc");
g_mutex_init (&src->dsound_lock);
src->device_guid = NULL;
src->device_name = NULL;
}
/* Enumeration callback called by DirectSoundCaptureEnumerate.
* Gets the GUID of request audio device
*/
static BOOL CALLBACK
gst_directsound_enum_callback( GUID* pGUID, TCHAR* strDesc, TCHAR* strDrvName,
VOID* pContext )
{
GstDirectSoundSrc *dsoundsrc = GST_DIRECTSOUND_SRC (pContext);
if ( pGUID && dsoundsrc && dsoundsrc->device_name &&
!g_strcmp0(dsoundsrc->device_name, strDesc)) {
g_free(dsoundsrc->device_guid);
dsoundsrc->device_guid = (GUID *) g_malloc0(sizeof(GUID));
memcpy( dsoundsrc->device_guid, pGUID, sizeof(GUID));
GST_INFO_OBJECT(dsoundsrc, "found the requested audio device :%s",
dsoundsrc->device_name);
return FALSE;
}
GST_INFO_OBJECT(dsoundsrc, "sound device names: %s, %s, requested device:%s",
strDesc, strDrvName, dsoundsrc->device_name);
return TRUE;
}
static gboolean
@ -259,6 +295,7 @@ gst_directsound_src_open (GstAudioSrc * asrc)
{
GstDirectSoundSrc *dsoundsrc;
HRESULT hRes; /* Result for windows functions */
LPGUID guid;
GST_DEBUG_OBJECT (asrc, "opening directsoundsrc");
@ -280,9 +317,15 @@ gst_directsound_src_open (GstAudioSrc * asrc)
goto capture_function;
}
/* FIXME: add here device selection */
hRes =
DirectSoundCaptureEnumerate((LPDSENUMCALLBACK)gst_directsound_enum_callback,
(VOID*)dsoundsrc);
if (FAILED (hRes)) {
goto capture_enumerate;
}
/* Create capture object */
hRes = pDSoundCaptureCreate (NULL, &dsoundsrc->pDSC, NULL);
hRes = pDSoundCaptureCreate (dsoundsrc->device_guid, &dsoundsrc->pDSC, NULL);
if (FAILED (hRes)) {
goto capture_object;
}
@ -296,6 +339,13 @@ capture_function:
("Unable to get capturecreate function"), (NULL));
return FALSE;
}
capture_enumerate:
{
FreeLibrary (dsoundsrc->DSoundDLL);
GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ,
("Unable to enumerate audio capture devices"), (NULL));
return FALSE;
}
capture_object:
{
FreeLibrary (dsoundsrc->DSoundDLL);

18
sys/directsound/gstdirectsoundsrc.h
View file

@ -45,13 +45,12 @@
*/
#ifndef __GST_DIRECTSOUNDSRC_H__
#define __GST_DIRECTSOUNDSRC_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiosrc.h>
#include <windows.h>
#define __GST_DIRECTSOUNDSRC_H__
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiosrc.h>
#include <windows.h>
#include <dsound.h>
/* add here some headers if needed */
@ -93,9 +92,8 @@ struct _GstDirectSoundSrc
guint latency_time;
#if 0
guint device;
#endif
GUID *device_guid;
char *device_name;
GMutex dsound_lock;