#include "gstwasapi2device.h"
#include "gstwasapi2client.h"
#include "gstwasapi2util.h"
+#include <gst/winrt/gstwinrt.h>
GST_DEBUG_CATEGORY_EXTERN (gst_wasapi2_debug);
#define GST_CAT_DEFAULT gst_wasapi2_debug
}
}
-struct _GstWasapi2DeviceProvider
+typedef struct _GstWasapi2DeviceProvider
{
GstDeviceProvider parent;
-};
-G_DEFINE_TYPE (GstWasapi2DeviceProvider, gst_wasapi2_device_provider,
- GST_TYPE_DEVICE_PROVIDER);
+ GstWinRTDeviceWatcher *watcher;
+
+ GMutex lock;
+ GCond cond;
+
+ gboolean enum_completed;
+} GstWasapi2DeviceProvider;
+
+typedef struct _GstWasapi2DeviceProviderClass
+{
+ GstDeviceProviderClass parent_class;
+
+ GstWinRTDeviceClass winrt_device_class;
+} GstWasapi2DeviceProviderClass;
+
+static GstDeviceProviderClass *parent_class = NULL;
+
+#define GST_WASAPI2_DEVICE_PROVIDER(object) \
+ ((GstWasapi2DeviceProvider *) (object))
+#define GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS(object) \
+ (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstWasapi2DeviceProviderClass))
+
+static void gst_wasapi2_device_provider_dispose (GObject * object);
+static void gst_wasapi2_device_provider_finalize (GObject * object);
static GList *gst_wasapi2_device_provider_probe (GstDeviceProvider * provider);
+static gboolean
+gst_wasapi2_device_provider_start (GstDeviceProvider * provider);
+static void gst_wasapi2_device_provider_stop (GstDeviceProvider * provider);
static void
-gst_wasapi2_device_provider_class_init (GstWasapi2DeviceProviderClass * klass)
+gst_wasapi2_device_provider_device_added (GstWinRTDeviceWatcher * watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformation * info,
+ gpointer user_data);
+static void
+gst_wasapi2_device_provider_device_updated (GstWinRTDeviceWatcher * watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate *
+ info_update, gpointer user_data);
+static void gst_wasapi2_device_provider_device_removed (GstWinRTDeviceWatcher *
+ watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate *
+ info_update, gpointer user_data);
+static void
+gst_wasapi2_device_provider_device_enum_completed (GstWinRTDeviceWatcher *
+ watcher, gpointer user_data);
+
+static void
+gst_wasapi2_device_provider_class_init (GstWasapi2DeviceProviderClass * klass,
+ gpointer data)
{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstDeviceProviderClass *provider_class = GST_DEVICE_PROVIDER_CLASS (klass);
+ gobject_class->dispose = gst_wasapi2_device_provider_dispose;
+ gobject_class->finalize = gst_wasapi2_device_provider_finalize;
+
provider_class->probe = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_probe);
+ provider_class->start = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_start);
+ provider_class->stop = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_stop);
+
+ parent_class = (GstDeviceProviderClass *) g_type_class_peek_parent (klass);
+
+ klass->winrt_device_class = (GstWinRTDeviceClass) GPOINTER_TO_INT (data);
+ if (klass->winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE) {
+ gst_device_provider_class_set_static_metadata (provider_class,
+ "WASAPI (Windows Audio Session API) Capture Device Provider",
+ "Source/Audio", "List WASAPI source devices",
+ "Nirbheek Chauhan <nirbheek@centricular.com>, "
+ "Seungha Yang <seungha@centricular.com>");
+ } else {
+ gst_device_provider_class_set_static_metadata (provider_class,
+ "WASAPI (Windows Audio Session API) Render and Loopback Capture Device Provider",
+ "Source/Sink/Audio", "List WASAPI loop back source and sink devices",
+ "Nirbheek Chauhan <nirbheek@centricular.com>, "
+ "Seungha Yang <seungha@centricular.com>");
+ }
+}
+
+static void
+gst_wasapi2_device_provider_init (GstWasapi2DeviceProvider * self)
+{
+ GstWasapi2DeviceProviderClass *klass =
+ GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS (self);
+ GstWinRTDeviceWatcherCallbacks callbacks;
+
+ g_mutex_init (&self->lock);
+ g_cond_init (&self->cond);
+
+ callbacks.added = gst_wasapi2_device_provider_device_added;
+ callbacks.updated = gst_wasapi2_device_provider_device_updated;
+ callbacks.removed = gst_wasapi2_device_provider_device_removed;
+ callbacks.enumeration_completed =
+ gst_wasapi2_device_provider_device_enum_completed;
+
+ self->watcher =
+ gst_winrt_device_watcher_new (klass->winrt_device_class,
+ &callbacks, self);
+}
+
+static void
+gst_wasapi2_device_provider_dispose (GObject * object)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (object);
- gst_device_provider_class_set_static_metadata (provider_class,
- "WASAPI (Windows Audio Session API) Device Provider",
- "Source/Sink/Audio", "List WASAPI source and sink devices",
- "Nirbheek Chauhan <nirbheek@centricular.com>, "
- "Seungha Yang <seungha@centricular.com>");
+ gst_clear_object (&self->watcher);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
-gst_wasapi2_device_provider_init (GstWasapi2DeviceProvider * provider)
+gst_wasapi2_device_provider_finalize (GObject * object)
{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (object);
+
+ g_mutex_clear (&self->lock);
+ g_cond_clear (&self->cond);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_wasapi2_device_provider_probe (GstDeviceProvider * provider)
{
GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
+ GstWasapi2DeviceProviderClass *klass =
+ GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS (self);
GList *devices = NULL;
- gst_wasapi2_device_provider_probe_internal (self,
- GST_WASAPI2_CLIENT_DEVICE_CLASS_CAPTURE, &devices);
- gst_wasapi2_device_provider_probe_internal (self,
- GST_WASAPI2_CLIENT_DEVICE_CLASS_LOOPBACK_CAPTURE, &devices);
- gst_wasapi2_device_provider_probe_internal (self,
- GST_WASAPI2_CLIENT_DEVICE_CLASS_RENDER, &devices);
+ if (klass->winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE) {
+ gst_wasapi2_device_provider_probe_internal (self,
+ GST_WASAPI2_CLIENT_DEVICE_CLASS_CAPTURE, &devices);
+ } else {
+ gst_wasapi2_device_provider_probe_internal (self,
+ GST_WASAPI2_CLIENT_DEVICE_CLASS_LOOPBACK_CAPTURE, &devices);
+ gst_wasapi2_device_provider_probe_internal (self,
+ GST_WASAPI2_CLIENT_DEVICE_CLASS_RENDER, &devices);
+ }
return devices;
}
+
+static gboolean
+gst_wasapi2_device_provider_start (GstDeviceProvider * provider)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
+ GList *devices = NULL;
+ GList *iter;
+
+ if (!self->watcher) {
+ GST_ERROR_OBJECT (self, "DeviceWatcher object wasn't configured");
+ return FALSE;
+ }
+
+ self->enum_completed = FALSE;
+
+ if (!gst_winrt_device_watcher_start (self->watcher))
+ return FALSE;
+
+ /* Wait for initial enumeration to be completed */
+ g_mutex_lock (&self->lock);
+ while (!self->enum_completed)
+ g_cond_wait (&self->cond, &self->lock);
+
+ devices = gst_wasapi2_device_provider_probe (provider);
+ if (devices) {
+ for (iter = devices; iter; iter = g_list_next (iter)) {
+ gst_device_provider_device_add (provider, GST_DEVICE (iter->data));
+ }
+
+ g_list_free (devices);
+ }
+ g_mutex_unlock (&self->lock);
+
+ return TRUE;
+}
+
+static void
+gst_wasapi2_device_provider_stop (GstDeviceProvider * provider)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
+
+ if (self->watcher)
+ gst_winrt_device_watcher_stop (self->watcher);
+}
+
+static gboolean
+gst_wasapi2_device_is_in_list (GList * list, GstDevice * device)
+{
+ GList *iter;
+ GstStructure *s;
+ const gchar *device_id;
+ gboolean found = FALSE;
+
+ s = gst_device_get_properties (device);
+ g_assert (s);
+
+ device_id = gst_structure_get_string (s, "device.id");
+ g_assert (device_id);
+
+ for (iter = list; iter; iter = g_list_next (iter)) {
+ GstStructure *other_s;
+ const gchar *other_id;
+
+ other_s = gst_device_get_properties (GST_DEVICE (iter->data));
+ g_assert (other_s);
+
+ other_id = gst_structure_get_string (other_s, "device.id");
+ g_assert (other_id);
+
+ if (g_ascii_strcasecmp (device_id, other_id) == 0) {
+ found = TRUE;
+ }
+
+ gst_structure_free (other_s);
+ if (found)
+ break;
+ }
+
+ gst_structure_free (s);
+
+ return found;
+}
+
+static void
+gst_wasapi2_device_provider_update_devices (GstWasapi2DeviceProvider * self)
+{
+ GstDeviceProvider *provider = GST_DEVICE_PROVIDER_CAST (self);
+ GList *prev_devices = NULL;
+ GList *new_devices = NULL;
+ GList *to_add = NULL;
+ GList *to_remove = NULL;
+ GList *iter;
+
+ GST_OBJECT_LOCK (self);
+ prev_devices = g_list_copy_deep (provider->devices,
+ (GCopyFunc) gst_object_ref, NULL);
+ GST_OBJECT_UNLOCK (self);
+
+ new_devices = gst_wasapi2_device_provider_probe (provider);
+
+ /* Ownership of GstDevice for gst_device_provider_device_add()
+ * and gst_device_provider_device_remove() is a bit complicated.
+ * Remove floating reference here for things to be clear */
+ for (iter = new_devices; iter; iter = g_list_next (iter))
+ gst_object_ref_sink (iter->data);
+
+ /* Check newly added devices */
+ for (iter = new_devices; iter; iter = g_list_next (iter)) {
+ if (!gst_wasapi2_device_is_in_list (prev_devices, GST_DEVICE (iter->data))) {
+ to_add = g_list_prepend (to_add, gst_object_ref (iter->data));
+ }
+ }
+
+ /* Check removed device */
+ for (iter = prev_devices; iter; iter = g_list_next (iter)) {
+ if (!gst_wasapi2_device_is_in_list (new_devices, GST_DEVICE (iter->data))) {
+ to_remove = g_list_prepend (to_remove, gst_object_ref (iter->data));
+ }
+ }
+
+ for (iter = to_remove; iter; iter = g_list_next (iter))
+ gst_device_provider_device_remove (provider, GST_DEVICE (iter->data));
+
+ for (iter = to_add; iter; iter = g_list_next (iter))
+ gst_device_provider_device_add (provider, GST_DEVICE (iter->data));
+
+ if (prev_devices)
+ g_list_free_full (prev_devices, (GDestroyNotify) gst_object_unref);
+
+ if (to_add)
+ g_list_free_full (to_add, (GDestroyNotify) gst_object_unref);
+
+ if (to_remove)
+ g_list_free_full (to_remove, (GDestroyNotify) gst_object_unref);
+}
+
+static void
+gst_wasapi2_device_provider_device_added (GstWinRTDeviceWatcher * watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformation * info,
+ gpointer user_data)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (user_data);
+
+ if (self->enum_completed)
+ gst_wasapi2_device_provider_update_devices (self);
+}
+
+static void
+gst_wasapi2_device_provider_device_removed (GstWinRTDeviceWatcher * watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate *
+ info_update, gpointer user_data)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (user_data);
+
+ if (self->enum_completed)
+ gst_wasapi2_device_provider_update_devices (self);
+}
+
+static void
+gst_wasapi2_device_provider_device_updated (GstWinRTDeviceWatcher * watcher,
+ __x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate * info,
+ gpointer user_data)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (user_data);
+
+ gst_wasapi2_device_provider_update_devices (self);
+}
+
+static void
+gst_wasapi2_device_provider_device_enum_completed (GstWinRTDeviceWatcher *
+ watcher, gpointer user_data)
+{
+ GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (user_data);
+
+ g_mutex_lock (&self->lock);
+ GST_DEBUG_OBJECT (self, "Enumeration completed");
+ self->enum_completed = TRUE;
+ g_cond_signal (&self->cond);
+ g_mutex_unlock (&self->lock);
+}
+
+static void
+gst_wasapi2_device_provider_register_internal (GstPlugin * plugin,
+ guint rank, GstWinRTDeviceClass winrt_device_class)
+{
+ GType type;
+ const gchar *type_name = NULL;
+ const gchar *feature_name = NULL;
+ GTypeInfo type_info = {
+ sizeof (GstWasapi2DeviceProviderClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_wasapi2_device_provider_class_init,
+ NULL,
+ NULL,
+ sizeof (GstWasapi2DeviceProvider),
+ 0,
+ (GInstanceInitFunc) gst_wasapi2_device_provider_init,
+ };
+
+ type_info.class_data = GINT_TO_POINTER (winrt_device_class);
+
+ if (winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE) {
+ type_name = "GstWasapi2CaputreDeviceProvider";
+ feature_name = "wasapi2capturedeviceprovider";
+ } else if (winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_RENDER) {
+ type_name = "GstWasapi2RenderDeviceProvider";
+ feature_name = "wasapi2renderdeviceprovider";
+ } else {
+ g_assert_not_reached ();
+ return;
+ }
+
+ type = g_type_register_static (GST_TYPE_DEVICE_PROVIDER,
+ type_name, &type_info, (GTypeFlags) 0);
+
+ if (!gst_device_provider_register (plugin, feature_name, rank, type))
+ GST_WARNING ("Failed to register provider '%s'", type_name);
+}
+
+void
+gst_wasapi2_device_provider_register (GstPlugin * plugin, guint rank)
+{
+ gst_wasapi2_device_provider_register_internal (plugin, rank,
+ GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE);
+ gst_wasapi2_device_provider_register_internal (plugin, rank,
+ GST_WINRT_DEVICE_CLASS_AUDIO_RENDER);
+}