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 <utils/Errors.h> 20 #include <utils/RefBase.h> 21 #include <utils/String8.h> 22 #include <system/audio.h> 23 #include <vector> 24 25 namespace android { 26 27 class AudioGain: public RefBase 28 { 29 public: 30 AudioGain(int index, bool useInChannelMask); 31 virtual ~AudioGain() {} 32 33 void setMode(audio_gain_mode_t mode) { mGain.mode = mode; } 34 const audio_gain_mode_t &getMode() const { return mGain.mode; } 35 36 void setChannelMask(audio_channel_mask_t mask) { mGain.channel_mask = mask; } 37 const audio_channel_mask_t &getChannelMask() const { return mGain.channel_mask; } 38 39 void setMinValueInMb(int minValue) { mGain.min_value = minValue; } 40 int getMinValueInMb() const { return mGain.min_value; } 41 42 void setMaxValueInMb(int maxValue) { mGain.max_value = maxValue; } 43 int getMaxValueInMb() const { return mGain.max_value; } 44 45 void setDefaultValueInMb(int defaultValue) { mGain.default_value = defaultValue; } 46 int getDefaultValueInMb() const { return mGain.default_value; } 47 48 void setStepValueInMb(uint32_t stepValue) { mGain.step_value = stepValue; } 49 int getStepValueInMb() const { return mGain.step_value; } 50 51 void setMinRampInMs(uint32_t minRamp) { mGain.min_ramp_ms = minRamp; } 52 int getMinRampInMs() const { return mGain.min_ramp_ms; } 53 54 void setMaxRampInMs(uint32_t maxRamp) { mGain.max_ramp_ms = maxRamp; } 55 int getMaxRampInMs() const { return mGain.max_ramp_ms; } 56 57 // TODO: remove dump from here (split serialization) 58 void dump(String8 *dst, int spaces, int index) const; 59 60 void getDefaultConfig(struct audio_gain_config *config); 61 status_t checkConfig(const struct audio_gain_config *config); 62 63 void setUseForVolume(bool canUseForVolume) { mUseForVolume = canUseForVolume; } 64 bool canUseForVolume() const { return mUseForVolume; } 65 66 const struct audio_gain &getGain() const { return mGain; } 67 68 private: 69 int mIndex; 70 struct audio_gain mGain; 71 bool mUseInChannelMask; 72 bool mUseForVolume = false; 73 }; 74 75 class AudioGains : public std::vector<sp<AudioGain> > 76 { 77 public: 78 bool canUseForVolume() const 79 { 80 for (const auto &gain: *this) { 81 if (gain->canUseForVolume()) { 82 return true; 83 } 84 } 85 return false; 86 } 87 88 int32_t add(const sp<AudioGain> gain) 89 { 90 push_back(gain); 91 return 0; 92 } 93 }; 94 95 } // namespace android 96
