| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <system/audio.h> |
| #include <Volume.h> |
| #include <utils/Errors.h> |
| |
| namespace android { |
| |
| class IVolumeCurvesCollection |
| { |
| public: |
| virtual void clearCurrentVolumeIndex(audio_stream_type_t stream) = 0; |
| virtual void addCurrentVolumeIndex(audio_stream_type_t stream, audio_devices_t device, |
| int index) = 0; |
| virtual bool canBeMuted(audio_stream_type_t stream) = 0; |
| virtual int getVolumeIndexMin(audio_stream_type_t stream) const = 0; |
| virtual int getVolumeIndex(audio_stream_type_t stream, audio_devices_t device) = 0; |
| virtual int getVolumeIndexMax(audio_stream_type_t stream) const = 0; |
| virtual float volIndexToDb(audio_stream_type_t stream, device_category device, |
| int indexInUi) const = 0; |
| virtual status_t initStreamVolume(audio_stream_type_t stream, int indexMin, int indexMax) = 0; |
| |
| virtual void initializeVolumeCurves(bool /*isSpeakerDrcEnabled*/) {} |
| virtual void switchVolumeCurve(audio_stream_type_t src, audio_stream_type_t dst) = 0; |
| virtual void restoreOriginVolumeCurve(audio_stream_type_t stream) |
| { |
| switchVolumeCurve(stream, stream); |
| } |
| virtual bool hasVolumeIndexForDevice(audio_stream_type_t stream, |
| audio_devices_t device) const = 0; |
| |
| virtual status_t dump(int fd) const = 0; |
| |
| protected: |
| virtual ~IVolumeCurvesCollection() {} |
| }; |
| |
| }; // namespace android |