/* GStreamer * Copyright (C) 2018 Nirbheek Chauhan <nirbheek@centricular.com> * Copyright (C) 2020 Seungha Yang <seungha@centricular.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstwasapi2device.h" #include "gstwasapi2client.h" #include "gstwasapi2util.h" GST_DEBUG_CATEGORY_EXTERN (gst_wasapi2_debug); #define GST_CAT_DEFAULT gst_wasapi2_debug enum { PROP_0, PROP_DEVICE, }; struct _GstWasapi2Device { GstDevice parent; gchar *device_id; const gchar *factory_name; }; G_DEFINE_TYPE (GstWasapi2Device, gst_wasapi2_device, GST_TYPE_DEVICE); static void gst_wasapi2_device_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_wasapi2_device_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_wasapi2_device_finalize (GObject * object); static GstElement *gst_wasapi2_device_create_element (GstDevice * device, const gchar * name); static void gst_wasapi2_device_class_init (GstWasapi2DeviceClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstDeviceClass *dev_class = GST_DEVICE_CLASS (klass); dev_class->create_element = gst_wasapi2_device_create_element; gobject_class->get_property = gst_wasapi2_device_get_property; gobject_class->set_property = gst_wasapi2_device_set_property; gobject_class->finalize = gst_wasapi2_device_finalize; g_object_class_install_property (gobject_class, PROP_DEVICE, g_param_spec_string ("device", "Device", "WASAPI playback device as a GUID string", NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); } static void gst_wasapi2_device_init (GstWasapi2Device * self) { } static void gst_wasapi2_device_finalize (GObject * object) { GstWasapi2Device *self = GST_WASAPI2_DEVICE (object); g_free (self->device_id); G_OBJECT_CLASS (gst_wasapi2_device_parent_class)->finalize (object); } static GstElement * gst_wasapi2_device_create_element (GstDevice * device, const gchar * name) { GstWasapi2Device *self = GST_WASAPI2_DEVICE (device); GstElement *elem; elem = gst_element_factory_make (self->factory_name, name); g_object_set (elem, "device", self->device_id, NULL); return elem; } static void gst_wasapi2_device_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstWasapi2Device *self = GST_WASAPI2_DEVICE (object); switch (prop_id) { case PROP_DEVICE: g_value_set_string (value, self->device_id); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_wasapi2_device_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstWasapi2Device *self = GST_WASAPI2_DEVICE (object); switch (prop_id) { case PROP_DEVICE: self->device_id = g_value_dup_string (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } struct _GstWasapi2DeviceProvider { GstDeviceProvider parent; }; G_DEFINE_TYPE (GstWasapi2DeviceProvider, gst_wasapi2_device_provider, GST_TYPE_DEVICE_PROVIDER); static GList *gst_wasapi2_device_provider_probe (GstDeviceProvider * provider); static void gst_wasapi2_device_provider_class_init (GstWasapi2DeviceProviderClass * klass) { GstDeviceProviderClass *provider_class = GST_DEVICE_PROVIDER_CLASS (klass); provider_class->probe = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_probe); 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>"); } static void gst_wasapi2_device_provider_init (GstWasapi2DeviceProvider * provider) { } static void gst_wasapi2_device_provider_probe_internal (GstWasapi2DeviceProvider * self, GstWasapi2ClientDeviceClass client_class, GList ** devices) { gint i; const gchar *device_class, *factory_name; if (client_class == GST_WASAPI2_CLIENT_DEVICE_CLASS_RENDER) { device_class = "Audio/Sink"; factory_name = "wasapi2sink"; } else { device_class = "Audio/Source"; factory_name = "wasapi2src"; } for (i = 0;; i++) { GstWasapi2Client *client = NULL; GstDevice *device; GstStructure *props = NULL; GstCaps *caps = NULL; gchar *device_id = NULL; gchar *device_name = NULL; client = gst_wasapi2_client_new (client_class, FALSE, i, NULL, NULL); if (!client) return; caps = gst_wasapi2_client_get_caps (client); if (!caps) { GST_WARNING_OBJECT (self, "Couldn't get caps from client %d", i); /* this might be a case where device activation is not finished yet */ caps = gst_caps_from_string (GST_WASAPI2_STATIC_CAPS); } g_object_get (client, "device", &device_id, "device-name", &device_name, NULL); if (!device_id) { GST_WARNING_OBJECT (self, "Couldn't get device name from client %d", i); goto next; } if (!device_name) { GST_WARNING_OBJECT (self, "Couldn't get device name from client %d", i); goto next; } props = gst_structure_new ("wasapi2-proplist", "device.api", G_TYPE_STRING, "wasapi", "device.id", G_TYPE_STRING, device_id, "device.default", G_TYPE_BOOLEAN, i == 0, "wasapi.device.description", G_TYPE_STRING, device_name, NULL); device = g_object_new (GST_TYPE_WASAPI2_DEVICE, "device", device_id, "display-name", device_name, "caps", caps, "device-class", device_class, "properties", props, NULL); GST_WASAPI2_DEVICE (device)->factory_name = factory_name; *devices = g_list_append (*devices, device); next: gst_clear_object (&client); gst_clear_caps (&caps); g_free (device_id); g_free (device_name); if (props) gst_structure_free (props); } return; } static GList * gst_wasapi2_device_provider_probe (GstDeviceProvider * provider) { GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider); 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_RENDER, &devices); return devices; }