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
25namespace android {
26
27class StreamDescriptor;
28
29class Gains
30{
31public :
32    static float volIndexToDb(const VolumeCurvePoint *point, int indexMin, int indexMax,
33                              int indexInUi);
34
35    // default volume curve
36    static const VolumeCurvePoint sDefaultVolumeCurve[Volume::VOLCNT];
37    // default volume curve for media strategy
38    static const VolumeCurvePoint sDefaultMediaVolumeCurve[Volume::VOLCNT];
39    // volume curve for non-media audio on ext media outputs (HDMI, Line, etc)
40    static const VolumeCurvePoint sExtMediaSystemVolumeCurve[Volume::VOLCNT];
41    // volume curve for media strategy on speakers
42    static const VolumeCurvePoint sSpeakerMediaVolumeCurve[Volume::VOLCNT];
43    static const VolumeCurvePoint sSpeakerMediaVolumeCurveDrc[Volume::VOLCNT];
44    // volume curve for sonification strategy on speakers
45    static const VolumeCurvePoint sSpeakerSonificationVolumeCurve[Volume::VOLCNT];
46    static const VolumeCurvePoint sSpeakerSonificationVolumeCurveDrc[Volume::VOLCNT];
47    static const VolumeCurvePoint sDefaultSystemVolumeCurve[Volume::VOLCNT];
48    static const VolumeCurvePoint sDefaultSystemVolumeCurveDrc[Volume::VOLCNT];
49    static const VolumeCurvePoint sHeadsetSystemVolumeCurve[Volume::VOLCNT];
50    static const VolumeCurvePoint sDefaultVoiceVolumeCurve[Volume::VOLCNT];
51    static const VolumeCurvePoint sSpeakerVoiceVolumeCurve[Volume::VOLCNT];
52    static const VolumeCurvePoint sLinearVolumeCurve[Volume::VOLCNT];
53    static const VolumeCurvePoint sSilentVolumeCurve[Volume::VOLCNT];
54    static const VolumeCurvePoint sFullScaleVolumeCurve[Volume::VOLCNT];
55    // default volume curves per stream and device category. See initializeVolumeCurves()
56    static const VolumeCurvePoint *sVolumeProfiles[AUDIO_STREAM_CNT][DEVICE_CATEGORY_CNT];
57};
58
59}; // namespace android
60