1 /* 2 * Copyright (C) 2021 Seungha Yang <seungha@centricular.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_MM_DEVICE_ENUMERATOR_H__ 21 #define __GST_MM_DEVICE_ENUMERATOR_H__ 22 23 #include <gst/gst.h> 24 #include <mmdeviceapi.h> 25 26 G_BEGIN_DECLS 27 28 #define GST_TYPE_MM_DEVICE_ENUMERATOR (gst_mm_device_enumerator_get_type ()) 29 G_DECLARE_FINAL_TYPE (GstMMDeviceEnumerator, gst_mm_device_enumerator, 30 GST, MM_DEVICE_ENUMERATOR, GstObject); 31 32 typedef struct 33 { 34 HRESULT (*device_state_changed) (GstMMDeviceEnumerator * enumerator, 35 LPCWSTR device_id, 36 DWORD new_state, 37 gpointer user_data); 38 39 HRESULT (*device_added) (GstMMDeviceEnumerator * enumerator, 40 LPCWSTR device_id, 41 gpointer user_data); 42 43 HRESULT (*device_removed) (GstMMDeviceEnumerator * provider, 44 LPCWSTR device_id, 45 gpointer user_data); 46 47 HRESULT (*default_device_changed) (GstMMDeviceEnumerator * provider, 48 EDataFlow flow, 49 ERole role, 50 LPCWSTR default_device_id, 51 gpointer user_data); 52 53 HRESULT (*property_value_changed) (GstMMDeviceEnumerator * provider, 54 LPCWSTR device_id, 55 const PROPERTYKEY key, 56 gpointer user_data); 57 } GstMMNotificationClientCallbacks; 58 59 GstMMDeviceEnumerator * gst_mm_device_enumerator_new (void); 60 61 IMMDeviceEnumerator * gst_mm_device_enumerator_get_handle (GstMMDeviceEnumerator * enumerator); 62 63 gboolean gst_mm_device_enumerator_set_notification_callback (GstMMDeviceEnumerator * enumerator, 64 GstMMNotificationClientCallbacks * callbacks, 65 gpointer user_data); 66 67 G_END_DECLS 68 69 #endif /* __GST_MM_DEVICE_ENUMERATOR_H__ */ 70