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 *Gains::sVolumeProfiles[AUDIO_STREAM_CNT] 117 [Volume::DEVICE_CATEGORY_CNT] = { 118 { // AUDIO_STREAM_VOICE_CALL 119 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 120 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 121 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 122 Gains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 123 }, 124 { // AUDIO_STREAM_SYSTEM 125 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 126 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 127 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 128 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 129 }, 130 { // AUDIO_STREAM_RING 131 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 132 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 133 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 134 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 135 }, 136 { // AUDIO_STREAM_MUSIC 137 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 138 Gains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 139 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 140 Gains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 141 }, 142 { // AUDIO_STREAM_ALARM 143 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 144 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 145 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 146 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 147 }, 148 { // AUDIO_STREAM_NOTIFICATION 149 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET 150 Gains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER 151 Gains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE 152 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 153 }, 154 { // AUDIO_STREAM_BLUETOOTH_SCO 155 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET 156 Gains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER 157 Gains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE 158 Gains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 159 }, 160 { // AUDIO_STREAM_ENFORCED_AUDIBLE 161 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 162 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 163 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 164 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 165 }, 166 { // AUDIO_STREAM_DTMF 167 Gains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET 168 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER 169 Gains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE 170 Gains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 171 }, 172 { // AUDIO_STREAM_TTS 173 // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER 174 Gains::sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET 175 Gains::sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER 176 Gains::sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE 177 Gains::sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 178 }, 179 { // AUDIO_STREAM_ACCESSIBILITY 180 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET 181 Gains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER 182 Gains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE 183 Gains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 184 }, 185 { // AUDIO_STREAM_REROUTING 186 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 187 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 188 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 189 Gains::sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 190 }, 191 { // AUDIO_STREAM_PATCH 192 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET 193 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER 194 Gains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE 195 Gains::sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA 196 }, 197 }; 198 199 //static 200 float Gains::volIndexToDb(Volume::device_category deviceCategory, 201 const StreamDescriptor& streamDesc, 202 int indexInUi) 203 { 204 const VolumeCurvePoint *curve = streamDesc.getVolumeCurvePoint(deviceCategory); 205 206 // the volume index in the UI is relative to the min and max volume indices for this stream type 207 int nbSteps = 1 + curve[Volume::VOLMAX].mIndex - 208 curve[Volume::VOLMIN].mIndex; 209 int volIdx = (nbSteps * (indexInUi - streamDesc.getVolumeIndexMin())) / 210 (streamDesc.getVolumeIndexMax() - streamDesc.getVolumeIndexMin()); 211 212 // find what part of the curve this index volume belongs to, or if it's out of bounds 213 int segment = 0; 214 if (volIdx < curve[Volume::VOLMIN].mIndex) { // out of bounds 215 return VOLUME_MIN_DB; 216 } else if (volIdx < curve[Volume::VOLKNEE1].mIndex) { 217 segment = 0; 218 } else if (volIdx < curve[Volume::VOLKNEE2].mIndex) { 219 segment = 1; 220 } else if (volIdx <= curve[Volume::VOLMAX].mIndex) { 221 segment = 2; 222 } else { // out of bounds 223 return 0.0f; 224 } 225 226 // linear interpolation in the attenuation table in dB 227 float decibels = curve[segment].mDBAttenuation + 228 ((float)(volIdx - curve[segment].mIndex)) * 229 ( (curve[segment+1].mDBAttenuation - 230 curve[segment].mDBAttenuation) / 231 ((float)(curve[segment+1].mIndex - 232 curve[segment].mIndex)) ); 233 234 ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f]", 235 curve[segment].mIndex, volIdx, 236 curve[segment+1].mIndex, 237 curve[segment].mDBAttenuation, 238 decibels, 239 curve[segment+1].mDBAttenuation); 240 241 return decibels; 242 } 243 244 245 //static 246 float Gains::volIndexToAmpl(Volume::device_category deviceCategory, 247 const StreamDescriptor& streamDesc, 248 int indexInUi) 249 { 250 return Volume::DbToAmpl(volIndexToDb(deviceCategory, streamDesc, indexInUi)); 251 } 252 253 254 255 }; // namespace android 256
