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 float GetCurVolume(uint32_t sessionId, const char *streamType, const char *deviceClass); 26 27 float GetPreVolume(uint32_t sessionId); 28 29 void SetPreVolume(uint32_t sessionId, float volume); 30 31 void GetStreamVolumeFade(uint32_t sessionId, float *fadeBegin, float *fadeEnd); 32 33 void SetStreamVolumeFade(uint32_t sessionId, float fadeBegin, float fadeEnd); 34 35 bool IsSameVolume(float volumeA, float volumeB); 36 37 void MonitorVolume(uint32_t sessionId, bool isOutput); 38 39 #ifdef __cplusplus 40 } 41 #endif 42 43 #endif // AUDIO_VOLUME_C_H