static void
bus_sync_message (GstBus * bus, GstMessage * message,
GstDeviceMonitor * monitor)
{
GstMessageType type = GST_MESSAGE_TYPE (message);
if (type == GST_MESSAGE_DEVICE_ADDED || type == GST_MESSAGE_DEVICE_REMOVED) {
gboolean matches;
GstDevice *device;
GstDeviceProvider *provider;
if (type == GST_MESSAGE_DEVICE_ADDED)
gst_message_parse_device_added (message, &device);
else
gst_message_parse_device_removed (message, &device);
GST_OBJECT_LOCK (monitor);
provider =
GST_DEVICE_PROVIDER (gst_object_get_parent (GST_OBJECT (device)));
if (is_provider_hidden (monitor, monitor->priv->hidden, provider)) {
matches = FALSE;
} else if (monitor->priv->filters->len) {
guint i;
for (i = 0; i < monitor->priv->filters->len; i++) {
struct DeviceFilter *filter =
g_ptr_array_index (monitor->priv->filters, i);
GstCaps *caps;
caps = gst_device_get_caps (device);
matches = gst_caps_can_intersect (filter->caps, caps) &&
gst_device_has_classesv (device, filter->classesv);
gst_caps_unref (caps);
if (matches)
break;
}
} else {
matches = TRUE;
}
GST_OBJECT_UNLOCK (monitor);
gst_object_unref (provider);
gst_object_unref (device);
if (matches)
gst_bus_post (monitor->priv->bus, gst_message_ref (message));
}
}
static void
gst_device_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDevice *gstdevice;
gstdevice = GST_DEVICE_CAST (object);
switch (prop_id) {
case PROP_DISPLAY_NAME:
g_value_take_string (value, gst_device_get_display_name (gstdevice));
break;
case PROP_CAPS:
if (gstdevice->priv->caps)
g_value_take_boxed (value, gst_device_get_caps (gstdevice));
break;
case PROP_DEVICE_CLASS:
g_value_take_string (value, gst_device_get_device_class (gstdevice));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GList *
gst_device_monitor_get_devices (GstDeviceMonitor * monitor)
{
GList *devices = NULL, *hidden = NULL;
guint i;
guint cookie;
g_return_val_if_fail (GST_IS_DEVICE_MONITOR (monitor), NULL);
GST_OBJECT_LOCK (monitor);
if (monitor->priv->filters->len == 0) {
GST_OBJECT_UNLOCK (monitor);
GST_WARNING_OBJECT (monitor, "No filters have been set");
return FALSE;
}
if (monitor->priv->providers->len == 0) {
GST_OBJECT_UNLOCK (monitor);
GST_WARNING_OBJECT (monitor, "No providers match the current filters");
return FALSE;
}
again:
g_list_free_full (devices, gst_object_unref);
g_list_free_full (hidden, g_free);
devices = NULL;
hidden = NULL;
cookie = monitor->priv->cookie;
for (i = 0; i < monitor->priv->providers->len; i++) {
GList *tmpdev;
GstDeviceProvider *provider =
gst_object_ref (g_ptr_array_index (monitor->priv->providers, i));
GList *item;
if (!is_provider_hidden (monitor, hidden, provider)) {
GST_OBJECT_UNLOCK (monitor);
tmpdev = gst_device_provider_get_devices (provider);
GST_OBJECT_LOCK (monitor);
update_hidden_providers_list (&hidden, provider);
} else {
tmpdev = NULL;
}
for (item = tmpdev; item; item = item->next) {
GstDevice *dev = GST_DEVICE (item->data);
GstCaps *caps = gst_device_get_caps (dev);
guint j;
for (j = 0; j < monitor->priv->filters->len; j++) {
struct DeviceFilter *filter =
g_ptr_array_index (monitor->priv->filters, j);
if (gst_caps_can_intersect (filter->caps, caps) &&
gst_device_has_classesv (dev, filter->classesv)) {
devices = g_list_prepend (devices, gst_object_ref (dev));
break;
}
}
gst_caps_unref (caps);
}
g_list_free_full (tmpdev, gst_object_unref);
gst_object_unref (provider);
if (monitor->priv->cookie != cookie)
goto again;
}
g_list_free_full (hidden, g_free);
GST_OBJECT_UNLOCK (monitor);
return g_list_reverse (devices);
}
