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directsoundsrc: add device property as it is done in directsoundsink

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This allows selection of the device by GUID instead of the name. The name is
user-given and multiple devices can have the same name.

https://bugzilla.gnome.org/show_bug.cgi?id=759484
This commit is contained in:
Thomas Roos 2015-12-18 12:26:16 +01:00 committed by Sebastian Dröge
parent d4920948aa
commit f9464ce354
2 changed files with 85 additions and 8 deletions
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91
sys/directsound/gstdirectsoundsrc.c
View file

@ -45,7 +45,7 @@
*/
/*
TODO: add device selection and check rate etc.
TODO: add mixer device init for selection by device-guid
*/
/**
@ -87,6 +87,7 @@ enum
{
PROP_0,
PROP_DEVICE_NAME,
PROP_DEVICE,
PROP_VOLUME,
PROP_MUTE
};
@ -130,6 +131,11 @@ static gboolean gst_directsound_src_get_mute (GstDirectSoundSrc * dsoundsrc);
static void gst_directsound_src_set_mute (GstDirectSoundSrc * dsoundsrc,
gboolean mute);
static const gchar *gst_directsound_src_get_device (GstDirectSoundSrc *
dsoundsrc);
static void gst_directsound_src_set_device (GstDirectSoundSrc * dsoundsrc,
const gchar * device_id);
static GstStaticPadTemplate directsound_src_src_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
@ -158,6 +164,9 @@ gst_directsound_src_finalize (GObject * object)
g_mutex_clear (&dsoundsrc->dsound_lock);
g_free (dsoundsrc->device_name);
g_free (dsoundsrc->device_id);
g_free (dsoundsrc->device_guid);
G_OBJECT_CLASS (parent_class)->finalize (object);
@ -212,6 +221,12 @@ gst_directsound_src_class_init (GstDirectSoundSrcClass * klass)
g_param_spec_string ("device-name", "Device name",
"Human-readable name of the sound device", NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_DEVICE,
g_param_spec_string ("device", "Device",
"DirectSound playback device as a GUID string (volume and mute will not work!)",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(gobject_class, PROP_VOLUME,
g_param_spec_double ("volume", "Volume",
@ -251,7 +266,6 @@ gst_directsound_src_set_property (GObject * object, guint prop_id,
if (g_value_get_string (value)) {
src->device_name = g_strdup (g_value_get_string (value));
}
break;
case PROP_VOLUME:
gst_directsound_src_set_volume (src, g_value_get_double (value));
@ -259,6 +273,9 @@ gst_directsound_src_set_property (GObject * object, guint prop_id,
case PROP_MUTE:
gst_directsound_src_set_mute (src, g_value_get_boolean (value));
break;
case PROP_DEVICE:
gst_directsound_src_set_device (src, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -277,6 +294,9 @@ gst_directsound_src_get_property (GObject * object, guint prop_id,
case PROP_DEVICE_NAME:
g_value_set_string (value, src->device_name);
break;
case PROP_DEVICE:
g_value_set_string (value, gst_directsound_src_get_device (src));
break;
case PROP_VOLUME:
g_value_set_double (value, gst_directsound_src_get_volume (src));
break;
@ -301,6 +321,7 @@ gst_directsound_src_init (GstDirectSoundSrc * src)
GST_DEBUG_OBJECT (src, "initializing directsoundsrc");
g_mutex_init (&src->dsound_lock);
src->device_guid = NULL;
src->device_id = NULL;
src->device_name = NULL;
src->mixer = NULL;
src->control_id_mute = -1;
@ -335,6 +356,28 @@ gst_directsound_enum_callback (GUID * pGUID, TCHAR * strDesc,
return TRUE;
}
static LPGUID
string_to_guid (const gchar * str)
{
HRESULT ret;
gunichar2 *wstr;
LPGUID out;
wstr = g_utf8_to_utf16 (str, -1, NULL, NULL, NULL);
if (!wstr)
return NULL;
out = g_new (GUID, 1);
ret = CLSIDFromString ((LPOLESTR) wstr, out);
g_free (wstr);
if (ret != NOERROR) {
g_free (out);
return NULL;
}
return out;
}
static gboolean
gst_directsound_src_open (GstAudioSrc * asrc)
{
@ -361,19 +404,37 @@ gst_directsound_src_open (GstAudioSrc * asrc)
goto capture_function;
}
hRes = DirectSoundCaptureEnumerate ((LPDSENUMCALLBACK)
gst_directsound_enum_callback, (VOID *) dsoundsrc);
if (FAILED (hRes)) {
goto capture_enumerate;
}
if (dsoundsrc->device_id) {
GST_DEBUG_OBJECT (asrc, "device id set to: %s ", dsoundsrc->device_id);
dsoundsrc->device_guid = string_to_guid (dsoundsrc->device_id);
if (dsoundsrc->device_guid == NULL) {
GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ,
("gst_directsound_src_open: device set, but guid not found: %s",
dsoundsrc->device_id), (NULL));
g_free (dsoundsrc->device_guid);
return FALSE;
}
} else {
hRes = DirectSoundCaptureEnumerate ((LPDSENUMCALLBACK)
gst_directsound_enum_callback, (VOID *) dsoundsrc);
if (FAILED (hRes)) {
goto capture_enumerate;
}
}
/* Create capture object */
hRes = pDSoundCaptureCreate (dsoundsrc->device_guid, &dsoundsrc->pDSC, NULL);
if (FAILED (hRes)) {
goto capture_object;
}
// mixer is only supported when device-id is not set
if (!dsoundsrc->device_id) {
gst_directsound_src_mixer_init (dsoundsrc);
}
gst_directsound_src_mixer_init (dsoundsrc);
return TRUE;
capture_function:
@ -936,3 +997,17 @@ gst_directsound_src_set_mute (GstDirectSoundSrc * dsoundsrc, gboolean mute)
else
dsoundsrc->mute = mute;
}
static const gchar *
gst_directsound_src_get_device (GstDirectSoundSrc * dsoundsrc)
{
return dsoundsrc->device_id;
}
static void
gst_directsound_src_set_device (GstDirectSoundSrc * dsoundsrc,
const gchar * device_id)
{
g_free (dsoundsrc->device_id);
dsoundsrc->device_id = g_strdup (device_id);
}

2
sys/directsound/gstdirectsoundsrc.h
View file

@ -103,7 +103,9 @@ struct _GstDirectSoundSrc
gboolean mute;
GUID *device_guid;
char *device_name;
char *device_id;
GMutex dsound_lock;