2 * Copyright (c) 2019 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.Runtime.InteropServices;
20 namespace Tizen.Multimedia
22 internal static partial class Interop
24 internal static partial class AudioDucking
26 [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
27 internal delegate void DuckingStateChangedCallback(AudioDuckingHandle ducking, bool isDucked, IntPtr userData);
29 [DllImport(Libraries.SoundManager, EntryPoint = "sound_manager_create_stream_ducking")]
30 internal static extern AudioManagerError Create(AudioStreamType targetType,
31 DuckingStateChangedCallback callback, IntPtr userData, out AudioDuckingHandle ducking);
33 [DllImport(Libraries.SoundManager, EntryPoint = "sound_manager_destroy_stream_ducking")]
34 internal static extern AudioManagerError Destroy(IntPtr ducking);
36 [DllImport(Libraries.SoundManager, EntryPoint = "sound_manager_is_ducked")]
37 internal static extern AudioManagerError IsDucked(AudioDuckingHandle ducking, out bool isDucked);
39 [DllImport(Libraries.SoundManager, EntryPoint = "sound_manager_activate_ducking")]
40 internal static extern AudioManagerError Activate(AudioDuckingHandle ducking, uint duration, double ratio);
42 [DllImport(Libraries.SoundManager, EntryPoint = "sound_manager_deactivate_ducking")]
43 internal static extern AudioManagerError Deactivate(AudioDuckingHandle ducking);