1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef AUDIO_VOLUME_C_H
17 #define AUDIO_VOLUME_C_H
18 
19 #include <inttypes.h>
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24 
25 enum FadePauseState {
26     NO_FADE,
27     DO_FADE,
28     DONE_FADE,
29     INVALID_STATE
30 };
31 
32 float GetCurVolume(uint32_t sessionId, const char *streamType, const char *deviceClass);
33 
34 float GetStreamVolume(uint32_t sessionId);
35 
36 float GetPreVolume(uint32_t sessionId);
37 
38 void SetPreVolume(uint32_t sessionId, float volume);
39 
40 void GetStreamVolumeFade(uint32_t sessionId, float *fadeBegin, float *fadeEnd);
41 
42 void SetStreamVolumeFade(uint32_t sessionId, float fadeBegin, float fadeEnd);
43 
44 bool IsSameVolume(float volumeA, float volumeB);
45 
46 void MonitorVolume(uint32_t sessionId, bool isOutput);
47 
48 void SetFadeoutState(uint32_t streamIndex, uint32_t fadeoutState);
49 
50 uint32_t GetFadeoutState(uint32_t streamIndex);
51 
52 #ifdef __cplusplus
53 }
54 #endif
55 
56 #endif // AUDIO_VOLUME_C_H