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 #define LOG_TAG "APM::Gains" 18 //#define LOG_NDEBUG 0 19 20 //#define VERY_VERBOSE_LOGGING 21 #ifdef VERY_VERBOSE_LOGGING 22 #define ALOGVV ALOGV 23 #else 24 #define ALOGVV(a...) do { } while(0) 25 #endif 26 27 #include "Gains.h" 28 #include <Volume.h> 29 #include <math.h> 30 #include <utils/String8.h> 31 32 namespace android { 33 34 // Enginedefault 35 const VolumeCurvePoint 36 Gains::sDefaultVolumeCurve[Volume::VOLCNT] = { 37 {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} 38 }; 39 40 41 const VolumeCurvePoint 42 Gains::sDefaultMediaVolumeCurve[Volume::VOLCNT] = { 43 {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} 44 }; 45 46 const VolumeCurvePoint 47 Gains::sExtMediaSystemVolumeCurve[Volume::VOLCNT] = { 48 {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} 49 }; 50 51 const VolumeCurvePoint 52 Gains::sSpeakerMediaVolumeCurve[Volume::VOLCNT] = { 53 {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} 54 }; 55 56 const VolumeCurvePoint 57 Gains::sSpeakerMediaVolumeCurveDrc[Volume::VOLCNT] = { 58 {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} 59 }; 60 61 const VolumeCurvePoint 62 Gains::sSpeakerSonificationVolumeCurve[Volume::VOLCNT] = { 63 {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} 64 }; 65 66 const VolumeCurvePoint 67 Gains::sSpeakerSonificationVolumeCurveDrc[Volume::VOLCNT] = { 68 {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} 69 }; 70 71 // AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks 72 // AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. 73 // AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). 74 // The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. 75 76 const VolumeCurvePoint 77 Gains::sDefaultSystemVolumeCurve[Volume::VOLCNT] = { 78 {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} 79 }; 80 81 const VolumeCurvePoint 82 Gains::sDefaultSystemVolumeCurveDrc[Volume::VOLCNT] = { 83 {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} 84 }; 85 86 const VolumeCurvePoint 87 Gains::sHeadsetSystemVolumeCurve[Volume::VOLCNT] = { 88 {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} 89 }; 90 91 const VolumeCurvePoint 92 Gains::sDefaultVoiceVolumeCurve[Volume::VOLCNT] = { 93 {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} 94 }; 95 96 const VolumeCurvePoint 97 Gains::sSpeakerVoiceVolumeCurve[Volume::VOLCNT] = { 98 {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} 99 }; 100 101 const VolumeCurvePoint 102 Gains::sLinearVolumeCurve[Volume::VOLCNT] = { 103 {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} 104 }; 105 106 const VolumeCurvePoint 107 Gains::sSilentVolumeCurve[Volume::VOLCNT] = { 108 {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} 109 }; 110 111 const VolumeCurvePoint 112 Gains::sFullScaleVolumeCurve[Volume::VOLCNT] = { 113 {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} 114 }; 115 116 const VolumeCurvePoint 117 Gains::sHearingAidVolumeCurve[Volume::VOLCNT] = { 118 {1, -128.0f}, {20, -80.0f}, {60, -40.0f}, {100, 0.0f} 119 }; 120 121 const VolumeCurvePoint *Gains::sVolumeProfiles[AUDIO_STREAM_CNT] 122 [DEVICE_CATEGORY_CNT] = { 123 { // AUDIO_STREAM_VOICE_CALL 124 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 125 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 126 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 127 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 128 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 129 }, 130 { // AUDIO_STREAM_SYSTEM 131 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 132 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 133 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 134 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 135 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 136 }, 137 { // AUDIO_STREAM_RING 138 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 139 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 140 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 141 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 142 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 143 }, 144 { // AUDIO_STREAM_MUSIC 145 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 146 Gains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 147 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 148 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 149 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 150 }, 151 { // AUDIO_STREAM_ALARM 152 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 153 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 154 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 155 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 156 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 157 }, 158 { // AUDIO_STREAM_NOTIFICATION 159 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 160 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 161 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 162 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 163 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 164 }, 165 { // AUDIO_STREAM_BLUETOOTH_SCO 166 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 167 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 168 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 169 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 170 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 171 }, 172 { // AUDIO_STREAM_ENFORCED_AUDIBLE 173 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 174 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 175 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 176 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 177 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 178 }, 179 { // AUDIO_STREAM_DTMF 180 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 181 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 182 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 183 Gains::sExtMediaSystemVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 184 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 185 }, 186 { // AUDIO_STREAM_TTS 187 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 188 Gains::sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 189 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 190 Gains::sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 191 Gains::sSilentVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 192 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 193 }, 194 { // AUDIO_STREAM_ACCESSIBILITY 195 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 196 Gains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 197 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 198 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 199 Gains::sHearingAidVolumeCurve // DEVICE_CATEGORY_HEARING_AID 200 }, 201 { // AUDIO_STREAM_REROUTING 202 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 203 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 204 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 205 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 206 Gains::sFullScaleVolumeCurve // DEVICE_CATEGORY_HEARING_AID 207 }, 208 { // AUDIO_STREAM_PATCH 209 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 210 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 211 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 212 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EXT_MEDIA 213 Gains::sFullScaleVolumeCurve // DEVICE_CATEGORY_HEARING_AID 214 }, 215 }; 216 217 //static 218 float Gains::volIndexToDb(const VolumeCurvePoint *curve, int indexMin, int indexMax, int indexInUi) 219 { 220 // the volume index in the UI is relative to the min and max volume indices for this stream type 221 int nbSteps = 1 + curve[Volume::VOLMAX].mIndex - curve[Volume::VOLMIN].mIndex; 222 int volIdx = (nbSteps * (indexInUi - indexMin)) / (indexMax - indexMin); 223 224 // find what part of the curve this index volume belongs to, or if it's out of bounds 225 int segment = 0; 226 if (volIdx < curve[Volume::VOLMIN].mIndex) { // out of bounds 227 return VOLUME_MIN_DB; 228 } else if (volIdx < curve[Volume::VOLKNEE1].mIndex) { 229 segment = 0; 230 } else if (volIdx < curve[Volume::VOLKNEE2].mIndex) { 231 segment = 1; 232 } else if (volIdx <= curve[Volume::VOLMAX].mIndex) { 233 segment = 2; 234 } else { // out of bounds 235 return 0.0f; 236 } 237 238 // linear interpolation in the attenuation table in dB 239 float decibels = curve[segment].mDBAttenuation + 240 ((float)(volIdx - curve[segment].mIndex)) * 241 ( (curve[segment+1].mDBAttenuation - 242 curve[segment].mDBAttenuation) / 243 ((float)(curve[segment+1].mIndex - 244 curve[segment].mIndex)) ); 245 246 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f]", 247 curve[segment].mIndex, volIdx, 248 curve[segment+1].mIndex, 249 curve[segment].mDBAttenuation, 250 decibels, 251 curve[segment+1].mDBAttenuation); 252 253 return decibels; 254 } 255 256 } // namespace android 257
