mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 13:48:55 +00:00
... by using newly implemented GstWinRT library Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/947>
595 lines
18 KiB
C
595 lines
18 KiB
C
/* GStreamer
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* Copyright (C) 2018 Nirbheek Chauhan <nirbheek@centricular.com>
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstwasapi2device.h"
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#include "gstwasapi2client.h"
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#include "gstwasapi2util.h"
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#include <gst/winrt/gstwinrt.h>
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GST_DEBUG_CATEGORY_EXTERN (gst_wasapi2_debug);
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#define GST_CAT_DEFAULT gst_wasapi2_debug
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enum
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{
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PROP_0,
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PROP_DEVICE,
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};
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struct _GstWasapi2Device
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{
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GstDevice parent;
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gchar *device_id;
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const gchar *factory_name;
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GstWasapi2ClientDeviceClass device_class;
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};
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G_DEFINE_TYPE (GstWasapi2Device, gst_wasapi2_device, GST_TYPE_DEVICE);
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static void gst_wasapi2_device_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static void gst_wasapi2_device_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_wasapi2_device_finalize (GObject * object);
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static GstElement *gst_wasapi2_device_create_element (GstDevice * device,
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const gchar * name);
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static void
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gst_wasapi2_device_class_init (GstWasapi2DeviceClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstDeviceClass *dev_class = GST_DEVICE_CLASS (klass);
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dev_class->create_element = gst_wasapi2_device_create_element;
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gobject_class->get_property = gst_wasapi2_device_get_property;
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gobject_class->set_property = gst_wasapi2_device_set_property;
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gobject_class->finalize = gst_wasapi2_device_finalize;
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g_object_class_install_property (gobject_class, PROP_DEVICE,
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g_param_spec_string ("device", "Device",
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"WASAPI playback device as a GUID string", NULL,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
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}
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static void
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gst_wasapi2_device_init (GstWasapi2Device * self)
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{
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}
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static void
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gst_wasapi2_device_finalize (GObject * object)
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{
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GstWasapi2Device *self = GST_WASAPI2_DEVICE (object);
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g_free (self->device_id);
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G_OBJECT_CLASS (gst_wasapi2_device_parent_class)->finalize (object);
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}
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static GstElement *
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gst_wasapi2_device_create_element (GstDevice * device, const gchar * name)
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{
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GstWasapi2Device *self = GST_WASAPI2_DEVICE (device);
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GstElement *elem;
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elem = gst_element_factory_make (self->factory_name, name);
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g_object_set (elem, "device", self->device_id, NULL);
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if (self->device_class == GST_WASAPI2_CLIENT_DEVICE_CLASS_LOOPBACK_CAPTURE)
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g_object_set (elem, "loopback", TRUE, NULL);
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return elem;
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}
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static void
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gst_wasapi2_device_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstWasapi2Device *self = GST_WASAPI2_DEVICE (object);
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switch (prop_id) {
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case PROP_DEVICE:
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g_value_set_string (value, self->device_id);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_wasapi2_device_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstWasapi2Device *self = GST_WASAPI2_DEVICE (object);
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switch (prop_id) {
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case PROP_DEVICE:
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self->device_id = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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typedef struct _GstWasapi2DeviceProvider
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{
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GstDeviceProvider parent;
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GstWinRTDeviceWatcher *watcher;
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GMutex lock;
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GCond cond;
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gboolean enum_completed;
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} GstWasapi2DeviceProvider;
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typedef struct _GstWasapi2DeviceProviderClass
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{
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GstDeviceProviderClass parent_class;
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GstWinRTDeviceClass winrt_device_class;
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} GstWasapi2DeviceProviderClass;
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static GstDeviceProviderClass *parent_class = NULL;
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#define GST_WASAPI2_DEVICE_PROVIDER(object) \
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((GstWasapi2DeviceProvider *) (object))
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#define GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS(object) \
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(G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstWasapi2DeviceProviderClass))
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static void gst_wasapi2_device_provider_dispose (GObject * object);
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static void gst_wasapi2_device_provider_finalize (GObject * object);
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static GList *gst_wasapi2_device_provider_probe (GstDeviceProvider * provider);
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static gboolean
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gst_wasapi2_device_provider_start (GstDeviceProvider * provider);
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static void gst_wasapi2_device_provider_stop (GstDeviceProvider * provider);
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static void
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gst_wasapi2_device_provider_device_added (GstWinRTDeviceWatcher * watcher,
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__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformation * info,
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gpointer user_data);
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static void
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gst_wasapi2_device_provider_device_updated (GstWinRTDeviceWatcher * watcher,
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__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate *
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info_update, gpointer user_data);
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static void gst_wasapi2_device_provider_device_removed (GstWinRTDeviceWatcher *
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watcher,
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__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate *
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info_update, gpointer user_data);
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static void
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gst_wasapi2_device_provider_device_enum_completed (GstWinRTDeviceWatcher *
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watcher, gpointer user_data);
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static void
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gst_wasapi2_device_provider_class_init (GstWasapi2DeviceProviderClass * klass,
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gpointer data)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstDeviceProviderClass *provider_class = GST_DEVICE_PROVIDER_CLASS (klass);
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gobject_class->dispose = gst_wasapi2_device_provider_dispose;
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gobject_class->finalize = gst_wasapi2_device_provider_finalize;
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provider_class->probe = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_probe);
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provider_class->start = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_start);
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provider_class->stop = GST_DEBUG_FUNCPTR (gst_wasapi2_device_provider_stop);
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parent_class = (GstDeviceProviderClass *) g_type_class_peek_parent (klass);
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klass->winrt_device_class = (GstWinRTDeviceClass) GPOINTER_TO_INT (data);
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if (klass->winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE) {
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gst_device_provider_class_set_static_metadata (provider_class,
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"WASAPI (Windows Audio Session API) Capture Device Provider",
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"Source/Audio", "List WASAPI source devices",
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"Nirbheek Chauhan <nirbheek@centricular.com>, "
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"Seungha Yang <seungha@centricular.com>");
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} else {
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gst_device_provider_class_set_static_metadata (provider_class,
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"WASAPI (Windows Audio Session API) Render and Loopback Capture Device Provider",
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"Source/Sink/Audio", "List WASAPI loop back source and sink devices",
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"Nirbheek Chauhan <nirbheek@centricular.com>, "
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"Seungha Yang <seungha@centricular.com>");
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}
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}
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static void
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gst_wasapi2_device_provider_init (GstWasapi2DeviceProvider * self)
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{
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GstWasapi2DeviceProviderClass *klass =
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GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS (self);
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GstWinRTDeviceWatcherCallbacks callbacks;
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g_mutex_init (&self->lock);
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g_cond_init (&self->cond);
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callbacks.added = gst_wasapi2_device_provider_device_added;
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callbacks.updated = gst_wasapi2_device_provider_device_updated;
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callbacks.removed = gst_wasapi2_device_provider_device_removed;
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callbacks.enumeration_completed =
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gst_wasapi2_device_provider_device_enum_completed;
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self->watcher =
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gst_winrt_device_watcher_new (klass->winrt_device_class,
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&callbacks, self);
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}
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static void
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gst_wasapi2_device_provider_dispose (GObject * object)
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{
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GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (object);
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gst_clear_object (&self->watcher);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_wasapi2_device_provider_finalize (GObject * object)
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{
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GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (object);
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g_mutex_clear (&self->lock);
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g_cond_clear (&self->cond);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_wasapi2_device_provider_probe_internal (GstWasapi2DeviceProvider * self,
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GstWasapi2ClientDeviceClass client_class, GList ** devices)
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{
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gint i;
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const gchar *device_class, *factory_name;
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if (client_class == GST_WASAPI2_CLIENT_DEVICE_CLASS_RENDER) {
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device_class = "Audio/Sink";
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factory_name = "wasapi2sink";
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} else {
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device_class = "Audio/Source";
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factory_name = "wasapi2src";
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}
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for (i = 0;; i++) {
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GstWasapi2Client *client = NULL;
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GstDevice *device;
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GstStructure *props = NULL;
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GstCaps *caps = NULL;
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gchar *device_id = NULL;
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gchar *device_name = NULL;
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client = gst_wasapi2_client_new (client_class, i, NULL, NULL);
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if (!client)
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return;
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caps = gst_wasapi2_client_get_caps (client);
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if (!caps) {
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GST_WARNING_OBJECT (self, "Couldn't get caps from client %d", i);
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/* this might be a case where device activation is not finished yet */
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caps = gst_caps_from_string (GST_WASAPI2_STATIC_CAPS);
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}
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g_object_get (client,
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"device", &device_id, "device-name", &device_name, NULL);
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if (!device_id) {
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GST_WARNING_OBJECT (self, "Couldn't get device name from client %d", i);
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goto next;
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}
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if (!device_name) {
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GST_WARNING_OBJECT (self, "Couldn't get device name from client %d", i);
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goto next;
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}
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props = gst_structure_new ("wasapi2-proplist",
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"device.api", G_TYPE_STRING, "wasapi2",
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"device.id", G_TYPE_STRING, device_id,
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"device.default", G_TYPE_BOOLEAN, i == 0,
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"wasapi2.device.description", G_TYPE_STRING, device_name, NULL);
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switch (client_class) {
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case GST_WASAPI2_CLIENT_DEVICE_CLASS_CAPTURE:
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gst_structure_set (props,
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"wasapi2.device.loopback", G_TYPE_BOOLEAN, FALSE, NULL);
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break;
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case GST_WASAPI2_CLIENT_DEVICE_CLASS_LOOPBACK_CAPTURE:
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gst_structure_set (props,
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"wasapi2.device.loopback", G_TYPE_BOOLEAN, TRUE, NULL);
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break;
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default:
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break;
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}
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device = g_object_new (GST_TYPE_WASAPI2_DEVICE, "device", device_id,
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"display-name", device_name, "caps", caps,
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"device-class", device_class, "properties", props, NULL);
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GST_WASAPI2_DEVICE (device)->factory_name = factory_name;
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GST_WASAPI2_DEVICE (device)->device_class = client_class;
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*devices = g_list_append (*devices, device);
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next:
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gst_clear_object (&client);
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gst_clear_caps (&caps);
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g_free (device_id);
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g_free (device_name);
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if (props)
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gst_structure_free (props);
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}
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return;
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}
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static GList *
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gst_wasapi2_device_provider_probe (GstDeviceProvider * provider)
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{
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GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
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GstWasapi2DeviceProviderClass *klass =
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GST_WASAPI2_DEVICE_PROVIDER_GET_CLASS (self);
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GList *devices = NULL;
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if (klass->winrt_device_class == GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE) {
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gst_wasapi2_device_provider_probe_internal (self,
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GST_WASAPI2_CLIENT_DEVICE_CLASS_CAPTURE, &devices);
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} else {
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gst_wasapi2_device_provider_probe_internal (self,
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GST_WASAPI2_CLIENT_DEVICE_CLASS_LOOPBACK_CAPTURE, &devices);
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gst_wasapi2_device_provider_probe_internal (self,
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GST_WASAPI2_CLIENT_DEVICE_CLASS_RENDER, &devices);
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}
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return devices;
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}
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static gboolean
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gst_wasapi2_device_provider_start (GstDeviceProvider * provider)
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{
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GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
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GList *devices = NULL;
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GList *iter;
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if (!self->watcher) {
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GST_ERROR_OBJECT (self, "DeviceWatcher object wasn't configured");
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return FALSE;
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}
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self->enum_completed = FALSE;
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if (!gst_winrt_device_watcher_start (self->watcher))
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return FALSE;
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/* Wait for initial enumeration to be completed */
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g_mutex_lock (&self->lock);
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while (!self->enum_completed)
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g_cond_wait (&self->cond, &self->lock);
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devices = gst_wasapi2_device_provider_probe (provider);
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if (devices) {
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for (iter = devices; iter; iter = g_list_next (iter)) {
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gst_device_provider_device_add (provider, GST_DEVICE (iter->data));
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}
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g_list_free (devices);
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}
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g_mutex_unlock (&self->lock);
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return TRUE;
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}
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static void
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gst_wasapi2_device_provider_stop (GstDeviceProvider * provider)
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{
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GstWasapi2DeviceProvider *self = GST_WASAPI2_DEVICE_PROVIDER (provider);
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if (self->watcher)
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gst_winrt_device_watcher_stop (self->watcher);
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}
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static gboolean
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gst_wasapi2_device_is_in_list (GList * list, GstDevice * device)
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{
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GList *iter;
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GstStructure *s;
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const gchar *device_id;
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gboolean found = FALSE;
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s = gst_device_get_properties (device);
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g_assert (s);
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device_id = gst_structure_get_string (s, "device.id");
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g_assert (device_id);
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for (iter = list; iter; iter = g_list_next (iter)) {
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GstStructure *other_s;
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const gchar *other_id;
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other_s = gst_device_get_properties (GST_DEVICE (iter->data));
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g_assert (other_s);
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other_id = gst_structure_get_string (other_s, "device.id");
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g_assert (other_id);
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if (g_ascii_strcasecmp (device_id, other_id) == 0) {
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found = TRUE;
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}
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gst_structure_free (other_s);
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if (found)
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break;
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}
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gst_structure_free (s);
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return found;
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}
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static void
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gst_wasapi2_device_provider_update_devices (GstWasapi2DeviceProvider * self)
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{
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GstDeviceProvider *provider = GST_DEVICE_PROVIDER_CAST (self);
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GList *prev_devices = NULL;
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GList *new_devices = NULL;
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GList *to_add = NULL;
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GList *to_remove = NULL;
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GList *iter;
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GST_OBJECT_LOCK (self);
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prev_devices = g_list_copy_deep (provider->devices,
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(GCopyFunc) gst_object_ref, NULL);
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GST_OBJECT_UNLOCK (self);
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new_devices = gst_wasapi2_device_provider_probe (provider);
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/* Ownership of GstDevice for gst_device_provider_device_add()
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* and gst_device_provider_device_remove() is a bit complicated.
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* Remove floating reference here for things to be clear */
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for (iter = new_devices; iter; iter = g_list_next (iter))
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gst_object_ref_sink (iter->data);
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/* Check newly added devices */
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for (iter = new_devices; iter; iter = g_list_next (iter)) {
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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);
|
|
}
|