1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 #pragma once 18 19 #include <StreamDescriptor.h> 20 #include <utils/KeyedVector.h> 21 #include <system/audio.h> 22 #include <utils/Errors.h> 23 #include <utils/RefBase.h> 24 25 namespace android { 26 27 class StreamDescriptor; 28 29 class Gains 30 { 31 public : 32 static float volIndexToAmpl(Volume::device_category deviceCategory, 33 const StreamDescriptor& streamDesc, 34 int indexInUi); 35 36 static float volIndexToDb(Volume::device_category deviceCategory, 37 const StreamDescriptor& streamDesc, 38 int indexInUi); 39 40 // default volume curve 41 static const VolumeCurvePoint sDefaultVolumeCurve[Volume::VOLCNT]; 42 // default volume curve for media strategy 43 static const VolumeCurvePoint sDefaultMediaVolumeCurve[Volume::VOLCNT]; 44 // volume curve for non-media audio on ext media outputs (HDMI, Line, etc) 45 static const VolumeCurvePoint sExtMediaSystemVolumeCurve[Volume::VOLCNT]; 46 // volume curve for media strategy on speakers 47 static const VolumeCurvePoint sSpeakerMediaVolumeCurve[Volume::VOLCNT]; 48 static const VolumeCurvePoint sSpeakerMediaVolumeCurveDrc[Volume::VOLCNT]; 49 // volume curve for sonification strategy on speakers 50 static const VolumeCurvePoint sSpeakerSonificationVolumeCurve[Volume::VOLCNT]; 51 static const VolumeCurvePoint sSpeakerSonificationVolumeCurveDrc[Volume::VOLCNT]; 52 static const VolumeCurvePoint sDefaultSystemVolumeCurve[Volume::VOLCNT]; 53 static const VolumeCurvePoint sDefaultSystemVolumeCurveDrc[Volume::VOLCNT]; 54 static const VolumeCurvePoint sHeadsetSystemVolumeCurve[Volume::VOLCNT]; 55 static const VolumeCurvePoint sDefaultVoiceVolumeCurve[Volume::VOLCNT]; 56 static const VolumeCurvePoint sSpeakerVoiceVolumeCurve[Volume::VOLCNT]; 57 static const VolumeCurvePoint sLinearVolumeCurve[Volume::VOLCNT]; 58 static const VolumeCurvePoint sSilentVolumeCurve[Volume::VOLCNT]; 59 static const VolumeCurvePoint sFullScaleVolumeCurve[Volume::VOLCNT]; 60 // default volume curves per stream and device category. See initializeVolumeCurves() 61 static const VolumeCurvePoint *sVolumeProfiles[AUDIO_STREAM_CNT][Volume::DEVICE_CATEGORY_CNT]; 62 }; 63 64 }; // namespace android 65
