mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-20 16:51:10 +00:00
08cb5b482d
Adding a helper library for various WinRT specific implementations. Currently this library supports only DeviceWatcher abstraction object which can be used for dynamic device add/remove detection. See also https://docs.microsoft.com/en-us/uwp/api/windows.devices.enumeration.devicewatcher?view=winrt-20348 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/947>
136 lines
5.2 KiB
C
136 lines
5.2 KiB
C
/* GStreamer
|
|
* Copyright (C) 2021 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.
|
|
*/
|
|
|
|
#ifndef __GST_WINRT_DEVICE_WATCHER_H__
|
|
#define __GST_WINRT_DEVICE_WATCHER_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/winrt/winrt-prelude.h>
|
|
#include <windows.devices.enumeration.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_WINRT_DEVICE_WATCHER (gst_winrt_device_watcher_get_type())
|
|
#define GST_WINRT_DEVICE_WATCHER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_WINRT_DEVICE_WATCHER, GstWinRTDeviceWatcher))
|
|
#define GST_WINRT_DEVICE_WATCHER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_WINRT_DEVICE_WATCHER, GstWinRTDeviceWatcherClass))
|
|
#define GST_IS_WINRT_DEVICE_WATCHER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_WINRT_DEVICE_WATCHER))
|
|
#define GST_IS_WINRT_DEVICE_WATCHER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_WINRT_DEVICE_WATCHER))
|
|
#define GST_WINRT_DEVICE_WATCHER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_WINRT_DEVICE_WATCHER, GstWinRTDeviceWatcherClass))
|
|
#define GST_WINRT_DEVICE_WATCHER_CAST(obj) ((GstWinRTDeviceWatcher *)obj)
|
|
|
|
typedef struct _GstWinRTDeviceWatcher GstWinRTDeviceWatcher;
|
|
typedef struct _GstWinRTDeviceWatcherClass GstWinRTDeviceWatcherClass;
|
|
typedef struct _GstWinRTDeviceWatcherPrivate GstWinRTDeviceWatcherPrivate;
|
|
|
|
/* ABI::Windows::Devices::Enumeration::DeviceClass */
|
|
#define GST_TYPE_WINRT_DEVICE_CLASS (gst_winrt_device_class_get_type ())
|
|
typedef enum
|
|
{
|
|
GST_WINRT_DEVICE_CLASS_ALL = 0,
|
|
GST_WINRT_DEVICE_CLASS_AUDIO_CAPTURE = 1,
|
|
GST_WINRT_DEVICE_CLASS_AUDIO_RENDER = 2,
|
|
GST_WINRT_DEVICE_CLASS_PORTABLE_STORAGE_DEVICE = 3,
|
|
GST_WINRT_DEVICE_CLASS_VIDEO_CAPTURE = 4,
|
|
} GstWinRTDeviceClass;
|
|
|
|
typedef struct
|
|
{
|
|
/**
|
|
* GstWinRTDeviceWatcherCallbacks::added:
|
|
* @watcher: a #GstWinRTDeviceWatcher
|
|
* @info: (transfer none): a IDeviceInformation interface handle
|
|
* @user_data: a user_data
|
|
*
|
|
* Called when a device is added to the collection enumerated by the DeviceWatcher
|
|
*/
|
|
void (*added) (GstWinRTDeviceWatcher * watcher,
|
|
__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformation * info,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstWinRTDeviceWatcherCallbacks::updated:
|
|
* @watcher: a #GstWinRTDeviceWatcher
|
|
* @info_update: (transfer none): a IDeviceInformationUpdate interface handle
|
|
* @user_data: a user_data
|
|
*
|
|
* Called when a device is updated in the collection of enumerated devices
|
|
*/
|
|
void (*updated) (GstWinRTDeviceWatcher * watcher,
|
|
__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate * info_update,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstWinRTDeviceWatcherCallbacks::removed:
|
|
* @watcher: a #GstWinRTDeviceWatcher
|
|
* @info_update: (transfer none): a IDeviceInformationUpdate interface handle
|
|
* @user_data: a user_data
|
|
*
|
|
* Called when a device is removed from the collection of enumerated devices
|
|
*/
|
|
void (*removed) (GstWinRTDeviceWatcher * watcher,
|
|
__x_ABI_CWindows_CDevices_CEnumeration_CIDeviceInformationUpdate * info_update,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstWinRTDeviceWatcherCallbacks::removed:
|
|
* @watcher: a #GstWinRTDeviceWatcher
|
|
* @user_data: a user_data
|
|
*
|
|
* Called when the enumeration of devices completes
|
|
*/
|
|
void (*enumeration_completed) (GstWinRTDeviceWatcher * watcher,
|
|
gpointer user_data);
|
|
} GstWinRTDeviceWatcherCallbacks;
|
|
|
|
struct _GstWinRTDeviceWatcher
|
|
{
|
|
GstObject parent;
|
|
|
|
GstWinRTDeviceWatcherPrivate *priv;
|
|
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstWinRTDeviceWatcherClass
|
|
{
|
|
GstObjectClass parent_class;
|
|
|
|
gpointer _gst_reserved[GST_PADDING_LARGE];
|
|
};
|
|
|
|
GST_WINRT_API
|
|
GType gst_winrt_device_class_get_type (void);
|
|
|
|
GST_WINRT_API
|
|
GType gst_winrt_device_watcher_get_type (void);
|
|
|
|
GST_WINRT_API
|
|
GstWinRTDeviceWatcher * gst_winrt_device_watcher_new (GstWinRTDeviceClass device_class,
|
|
const GstWinRTDeviceWatcherCallbacks * callbacks,
|
|
gpointer user_data);
|
|
|
|
GST_WINRT_API
|
|
gboolean gst_winrt_device_watcher_start (GstWinRTDeviceWatcher * watcher);
|
|
|
|
GST_WINRT_API
|
|
void gst_winrt_device_watcher_stop (GstWinRTDeviceWatcher * watcher);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_WINRT_DEVICE_WATCHER_H__ */
|