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Diffstat (limited to 'services/audiopolicy/managerdefault/Gains.cpp')
| -rw-r--r-- | services/audiopolicy/managerdefault/Gains.cpp | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/services/audiopolicy/managerdefault/Gains.cpp b/services/audiopolicy/managerdefault/Gains.cpp new file mode 100644 index 0000000..4aca26d --- /dev/null +++ b/services/audiopolicy/managerdefault/Gains.cpp @@ -0,0 +1,446 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "APM::Gains" +//#define LOG_NDEBUG 0 + +//#define VERY_VERBOSE_LOGGING +#ifdef VERY_VERBOSE_LOGGING +#define ALOGVV ALOGV +#else +#define ALOGVV(a...) do { } while(0) +#endif + +#include "AudioPolicyManager.h" + +#include <math.h> + +namespace android { + +const VolumeCurvePoint +ApmGains::sDefaultVolumeCurve[ApmGains::VOLCNT] = { + {1, -49.5f}, {33, -33.5f}, {66, -17.0f}, {100, 0.0f} +}; + + +const VolumeCurvePoint +ApmGains::sDefaultMediaVolumeCurve[ApmGains::VOLCNT] = { + {1, -58.0f}, {20, -40.0f}, {60, -17.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sExtMediaSystemVolumeCurve[ApmGains::VOLCNT] = { + {1, -58.0f}, {20, -40.0f}, {60, -21.0f}, {100, -10.0f} +}; + +const VolumeCurvePoint +ApmGains::sSpeakerMediaVolumeCurve[ApmGains::VOLCNT] = { + {1, -56.0f}, {20, -34.0f}, {60, -11.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sSpeakerMediaVolumeCurveDrc[ApmGains::VOLCNT] = { + {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sSpeakerSonificationVolumeCurve[ApmGains::VOLCNT] = { + {1, -29.7f}, {33, -20.1f}, {66, -10.2f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sSpeakerSonificationVolumeCurveDrc[ApmGains::VOLCNT] = { + {1, -35.7f}, {33, -26.1f}, {66, -13.2f}, {100, 0.0f} +}; + +// AUDIO_STREAM_SYSTEM, AUDIO_STREAM_ENFORCED_AUDIBLE and AUDIO_STREAM_DTMF volume tracks +// AUDIO_STREAM_RING on phones and AUDIO_STREAM_MUSIC on tablets. +// AUDIO_STREAM_DTMF tracks AUDIO_STREAM_VOICE_CALL while in call (See AudioService.java). +// The range is constrained between -24dB and -6dB over speaker and -30dB and -18dB over headset. + +const VolumeCurvePoint +ApmGains::sDefaultSystemVolumeCurve[ApmGains::VOLCNT] = { + {1, -24.0f}, {33, -18.0f}, {66, -12.0f}, {100, -6.0f} +}; + +const VolumeCurvePoint +ApmGains::sDefaultSystemVolumeCurveDrc[ApmGains::VOLCNT] = { + {1, -34.0f}, {33, -24.0f}, {66, -15.0f}, {100, -6.0f} +}; + +const VolumeCurvePoint +ApmGains::sHeadsetSystemVolumeCurve[ApmGains::VOLCNT] = { + {1, -30.0f}, {33, -26.0f}, {66, -22.0f}, {100, -18.0f} +}; + +const VolumeCurvePoint +ApmGains::sDefaultVoiceVolumeCurve[ApmGains::VOLCNT] = { + {0, -42.0f}, {33, -28.0f}, {66, -14.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sSpeakerVoiceVolumeCurve[ApmGains::VOLCNT] = { + {0, -24.0f}, {33, -16.0f}, {66, -8.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sLinearVolumeCurve[ApmGains::VOLCNT] = { + {0, -96.0f}, {33, -68.0f}, {66, -34.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint +ApmGains::sSilentVolumeCurve[ApmGains::VOLCNT] = { + {0, -96.0f}, {1, -96.0f}, {2, -96.0f}, {100, -96.0f} +}; + +const VolumeCurvePoint +ApmGains::sFullScaleVolumeCurve[ApmGains::VOLCNT] = { + {0, 0.0f}, {1, 0.0f}, {2, 0.0f}, {100, 0.0f} +}; + +const VolumeCurvePoint *ApmGains::sVolumeProfiles[AUDIO_STREAM_CNT] + [ApmGains::DEVICE_CATEGORY_CNT] = { + { // AUDIO_STREAM_VOICE_CALL + ApmGains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_SYSTEM + ApmGains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_RING + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_MUSIC + ApmGains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_ALARM + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_NOTIFICATION + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerSonificationVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_BLUETOOTH_SCO + ApmGains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerVoiceVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultVoiceVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_ENFORCED_AUDIBLE + ApmGains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_DTMF + ApmGains::sHeadsetSystemVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultSystemVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sExtMediaSystemVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_TTS + // "Transmitted Through Speaker": always silent except on DEVICE_CATEGORY_SPEAKER + ApmGains::sSilentVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sLinearVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sSilentVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sSilentVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_ACCESSIBILITY + ApmGains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sSpeakerMediaVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sDefaultMediaVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sDefaultMediaVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_REROUTING + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, + { // AUDIO_STREAM_PATCH + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_HEADSET + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_SPEAKER + ApmGains::sFullScaleVolumeCurve, // DEVICE_CATEGORY_EARPIECE + ApmGains::sFullScaleVolumeCurve // DEVICE_CATEGORY_EXT_MEDIA + }, +}; + +//static +audio_devices_t ApmGains::getDeviceForVolume(audio_devices_t device) +{ + if (device == AUDIO_DEVICE_NONE) { + // this happens when forcing a route update and no track is active on an output. + // In this case the returned category is not important. + device = AUDIO_DEVICE_OUT_SPEAKER; + } else if (popcount(device) > 1) { + // Multiple device selection is either: + // - speaker + one other device: give priority to speaker in this case. + // - one A2DP device + another device: happens with duplicated output. In this case + // retain the device on the A2DP output as the other must not correspond to an active + // selection if not the speaker. + // - HDMI-CEC system audio mode only output: give priority to available item in order. + if (device & AUDIO_DEVICE_OUT_SPEAKER) { + device = AUDIO_DEVICE_OUT_SPEAKER; + } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) { + device = AUDIO_DEVICE_OUT_HDMI_ARC; + } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) { + device = AUDIO_DEVICE_OUT_AUX_LINE; + } else if (device & AUDIO_DEVICE_OUT_SPDIF) { + device = AUDIO_DEVICE_OUT_SPDIF; + } else { + device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP); + } + } + + /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/ + if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE) + device = AUDIO_DEVICE_OUT_SPEAKER; + + ALOGW_IF(popcount(device) != 1, + "getDeviceForVolume() invalid device combination: %08x", + device); + + return device; +} + +//static +ApmGains::device_category ApmGains::getDeviceCategory(audio_devices_t device) +{ + switch(getDeviceForVolume(device)) { + case AUDIO_DEVICE_OUT_EARPIECE: + return ApmGains::DEVICE_CATEGORY_EARPIECE; + case AUDIO_DEVICE_OUT_WIRED_HEADSET: + case AUDIO_DEVICE_OUT_WIRED_HEADPHONE: + case AUDIO_DEVICE_OUT_BLUETOOTH_SCO: + case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET: + case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP: + case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES: + return ApmGains::DEVICE_CATEGORY_HEADSET; + case AUDIO_DEVICE_OUT_LINE: + case AUDIO_DEVICE_OUT_AUX_DIGITAL: + /*USB? Remote submix?*/ + return ApmGains::DEVICE_CATEGORY_EXT_MEDIA; + case AUDIO_DEVICE_OUT_SPEAKER: + case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: + case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: + case AUDIO_DEVICE_OUT_USB_ACCESSORY: + case AUDIO_DEVICE_OUT_USB_DEVICE: + case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: + default: + return ApmGains::DEVICE_CATEGORY_SPEAKER; + } +} + +//static +float ApmGains::volIndexToAmpl(audio_devices_t device, const StreamDescriptor& streamDesc, + int indexInUi) +{ + ApmGains::device_category deviceCategory = ApmGains::getDeviceCategory(device); + const VolumeCurvePoint *curve = streamDesc.mVolumeCurve[deviceCategory]; + + // the volume index in the UI is relative to the min and max volume indices for this stream type + int nbSteps = 1 + curve[ApmGains::VOLMAX].mIndex - + curve[ApmGains::VOLMIN].mIndex; + int volIdx = (nbSteps * (indexInUi - streamDesc.mIndexMin)) / + (streamDesc.mIndexMax - streamDesc.mIndexMin); + + // find what part of the curve this index volume belongs to, or if it's out of bounds + int segment = 0; + if (volIdx < curve[ApmGains::VOLMIN].mIndex) { // out of bounds + return 0.0f; + } else if (volIdx < curve[ApmGains::VOLKNEE1].mIndex) { + segment = 0; + } else if (volIdx < curve[ApmGains::VOLKNEE2].mIndex) { + segment = 1; + } else if (volIdx <= curve[ApmGains::VOLMAX].mIndex) { + segment = 2; + } else { // out of bounds + return 1.0f; + } + + // linear interpolation in the attenuation table in dB + float decibels = curve[segment].mDBAttenuation + + ((float)(volIdx - curve[segment].mIndex)) * + ( (curve[segment+1].mDBAttenuation - + curve[segment].mDBAttenuation) / + ((float)(curve[segment+1].mIndex - + curve[segment].mIndex)) ); + + float amplification = exp( decibels * 0.115129f); // exp( dB * ln(10) / 20 ) + + ALOGVV("VOLUME vol index=[%d %d %d], dB=[%.1f %.1f %.1f] ampl=%.5f", + curve[segment].mIndex, volIdx, + curve[segment+1].mIndex, + curve[segment].mDBAttenuation, + decibels, + curve[segment+1].mDBAttenuation, + amplification); + + return amplification; +} + + + +AudioGain::AudioGain(int index, bool useInChannelMask) +{ + mIndex = index; + mUseInChannelMask = useInChannelMask; + memset(&mGain, 0, sizeof(struct audio_gain)); +} + +void AudioGain::getDefaultConfig(struct audio_gain_config *config) +{ + config->index = mIndex; + config->mode = mGain.mode; + config->channel_mask = mGain.channel_mask; + if ((mGain.mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { + config->values[0] = mGain.default_value; + } else { + uint32_t numValues; + if (mUseInChannelMask) { + numValues = audio_channel_count_from_in_mask(mGain.channel_mask); + } else { + numValues = audio_channel_count_from_out_mask(mGain.channel_mask); + } + for (size_t i = 0; i < numValues; i++) { + config->values[i] = mGain.default_value; + } + } + if ((mGain.mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { + config->ramp_duration_ms = mGain.min_ramp_ms; + } +} + +status_t AudioGain::checkConfig(const struct audio_gain_config *config) +{ + if ((config->mode & ~mGain.mode) != 0) { + return BAD_VALUE; + } + if ((config->mode & AUDIO_GAIN_MODE_JOINT) == AUDIO_GAIN_MODE_JOINT) { + if ((config->values[0] < mGain.min_value) || + (config->values[0] > mGain.max_value)) { + return BAD_VALUE; + } + } else { + if ((config->channel_mask & ~mGain.channel_mask) != 0) { + return BAD_VALUE; + } + uint32_t numValues; + if (mUseInChannelMask) { + numValues = audio_channel_count_from_in_mask(config->channel_mask); + } else { + numValues = audio_channel_count_from_out_mask(config->channel_mask); + } + for (size_t i = 0; i < numValues; i++) { + if ((config->values[i] < mGain.min_value) || + (config->values[i] > mGain.max_value)) { + return BAD_VALUE; + } + } + } + if ((config->mode & AUDIO_GAIN_MODE_RAMP) == AUDIO_GAIN_MODE_RAMP) { + if ((config->ramp_duration_ms < mGain.min_ramp_ms) || + (config->ramp_duration_ms > mGain.max_ramp_ms)) { + return BAD_VALUE; + } + } + return NO_ERROR; +} + +void AudioGain::dump(int fd, int spaces, int index) const +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + + snprintf(buffer, SIZE, "%*sGain %d:\n", spaces, "", index+1); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- mode: %08x\n", spaces, "", mGain.mode); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- channel_mask: %08x\n", spaces, "", mGain.channel_mask); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- min_value: %d mB\n", spaces, "", mGain.min_value); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- max_value: %d mB\n", spaces, "", mGain.max_value); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- default_value: %d mB\n", spaces, "", mGain.default_value); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- step_value: %d mB\n", spaces, "", mGain.step_value); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- min_ramp_ms: %d ms\n", spaces, "", mGain.min_ramp_ms); + result.append(buffer); + snprintf(buffer, SIZE, "%*s- max_ramp_ms: %d ms\n", spaces, "", mGain.max_ramp_ms); + result.append(buffer); + + write(fd, result.string(), result.size()); +} + + +// --- StreamDescriptor class implementation + +StreamDescriptor::StreamDescriptor() + : mIndexMin(0), mIndexMax(1), mCanBeMuted(true) +{ + mIndexCur.add(AUDIO_DEVICE_OUT_DEFAULT, 0); +} + +int StreamDescriptor::getVolumeIndex(audio_devices_t device) +{ + device = ApmGains::getDeviceForVolume(device); + // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT + if (mIndexCur.indexOfKey(device) < 0) { + device = AUDIO_DEVICE_OUT_DEFAULT; + } + return mIndexCur.valueFor(device); +} + +void StreamDescriptor::dump(int fd) +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + + snprintf(buffer, SIZE, "%s %02d %02d ", + mCanBeMuted ? "true " : "false", mIndexMin, mIndexMax); + result.append(buffer); + for (size_t i = 0; i < mIndexCur.size(); i++) { + snprintf(buffer, SIZE, "%04x : %02d, ", + mIndexCur.keyAt(i), + mIndexCur.valueAt(i)); + result.append(buffer); + } + result.append("\n"); + + write(fd, result.string(), result.size()); +} + +}; // namespace android |