| /* |
| * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. |
| * Not a contribution. |
| * |
| * Copyright (C) 2009 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 "AudioPolicyManager" |
| //#define LOG_NDEBUG 0 |
| |
| //#define VERY_VERBOSE_LOGGING |
| #ifdef VERY_VERBOSE_LOGGING |
| #define ALOGVV ALOGV |
| #else |
| #define ALOGVV(a...) do { } while(0) |
| #endif |
| |
| // A device mask for all audio output devices that are considered "remote" when evaluating |
| // active output devices in isStreamActiveRemotely() |
| #define APM_AUDIO_OUT_DEVICE_REMOTE_ALL AUDIO_DEVICE_OUT_REMOTE_SUBMIX |
| |
| #include <utils/Log.h> |
| #include "AudioPolicyManager.h" |
| #include <hardware/audio_effect.h> |
| #include <hardware/audio.h> |
| #include <math.h> |
| #include <hardware_legacy/audio_policy_conf.h> |
| #include <cutils/properties.h> |
| |
| namespace android_audio_legacy { |
| |
| // ---------------------------------------------------------------------------- |
| // AudioPolicyInterface implementation |
| // ---------------------------------------------------------------------------- |
| |
| status_t AudioPolicyManager::setDeviceConnectionState(audio_devices_t device, |
| AudioSystem::device_connection_state state, |
| const char *device_address) |
| { |
| SortedVector <audio_io_handle_t> outputs; |
| |
| ALOGV("setDeviceConnectionState() device: %x, state %d, address %s", device, state, device_address); |
| |
| // connect/disconnect only 1 device at a time |
| if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE; |
| |
| if (strlen(device_address) >= MAX_DEVICE_ADDRESS_LEN) { |
| ALOGE("setDeviceConnectionState() invalid address: %s", device_address); |
| return BAD_VALUE; |
| } |
| |
| // handle output devices |
| if (audio_is_output_device(device)) { |
| |
| if (!mHasA2dp && audio_is_a2dp_device(device)) { |
| ALOGE("setDeviceConnectionState() invalid A2DP device: %x", device); |
| return BAD_VALUE; |
| } |
| if (!mHasUsb && audio_is_usb_device(device)) { |
| ALOGE("setDeviceConnectionState() invalid USB audio device: %x", device); |
| return BAD_VALUE; |
| } |
| if (!mHasRemoteSubmix && audio_is_remote_submix_device((audio_devices_t)device)) { |
| ALOGE("setDeviceConnectionState() invalid remote submix audio device: %x", device); |
| return BAD_VALUE; |
| } |
| |
| // save a copy of the opened output descriptors before any output is opened or closed |
| // by checkOutputsForDevice(). This will be needed by checkOutputForAllStrategies() |
| mPreviousOutputs = mOutputs; |
| switch (state) |
| { |
| // handle output device connection |
| case AudioSystem::DEVICE_STATE_AVAILABLE: |
| if (mAvailableOutputDevices & device) { |
| ALOGW("setDeviceConnectionState() device already connected: %x", device); |
| return INVALID_OPERATION; |
| } |
| ALOGV("setDeviceConnectionState() connecting device %x", device); |
| |
| if (checkOutputsForDevice(device, state, outputs) != NO_ERROR) { |
| return INVALID_OPERATION; |
| } |
| ALOGV("setDeviceConnectionState() checkOutputsForDevice() returned %d outputs", |
| outputs.size()); |
| // register new device as available |
| mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices | device); |
| |
| if (!outputs.isEmpty()) { |
| String8 paramStr; |
| if (mHasA2dp && audio_is_a2dp_device(device)) { |
| // handle A2DP device connection |
| AudioParameter param; |
| param.add(String8(AUDIO_PARAMETER_A2DP_SINK_ADDRESS), String8(device_address)); |
| paramStr = param.toString(); |
| mA2dpDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN); |
| mA2dpSuspended = false; |
| } else if (audio_is_bluetooth_sco_device(device)) { |
| // handle SCO device connection |
| mScoDeviceAddress = String8(device_address, MAX_DEVICE_ADDRESS_LEN); |
| } else if (mHasUsb && audio_is_usb_device(device)) { |
| // handle USB device connection |
| mUsbCardAndDevice = String8(device_address, MAX_DEVICE_ADDRESS_LEN); |
| paramStr = mUsbCardAndDevice; |
| } |
| // not currently handling multiple simultaneous submixes: ignoring remote submix |
| // case and address |
| if (!paramStr.isEmpty()) { |
| for (size_t i = 0; i < outputs.size(); i++) { |
| mpClientInterface->setParameters(outputs[i], paramStr); |
| } |
| } |
| } |
| break; |
| // handle output device disconnection |
| case AudioSystem::DEVICE_STATE_UNAVAILABLE: { |
| if (!(mAvailableOutputDevices & device)) { |
| ALOGW("setDeviceConnectionState() device not connected: %x", device); |
| return INVALID_OPERATION; |
| } |
| |
| ALOGV("setDeviceConnectionState() disconnecting device %x", device); |
| // remove device from available output devices |
| mAvailableOutputDevices = (audio_devices_t)(mAvailableOutputDevices & ~device); |
| |
| checkOutputsForDevice(device, state, outputs); |
| if (mHasA2dp && audio_is_a2dp_device(device)) { |
| // handle A2DP device disconnection |
| mA2dpDeviceAddress = ""; |
| mA2dpSuspended = false; |
| } else if (audio_is_bluetooth_sco_device(device)) { |
| // handle SCO device disconnection |
| mScoDeviceAddress = ""; |
| } else if (mHasUsb && audio_is_usb_device(device)) { |
| // handle USB device disconnection |
| mUsbCardAndDevice = ""; |
| } |
| // not currently handling multiple simultaneous submixes: ignoring remote submix |
| // case and address |
| } break; |
| |
| default: |
| ALOGE("setDeviceConnectionState() invalid state: %x", state); |
| return BAD_VALUE; |
| } |
| |
| checkA2dpSuspend(); |
| checkOutputForAllStrategies(); |
| // outputs must be closed after checkOutputForAllStrategies() is executed |
| if (!outputs.isEmpty()) { |
| for (size_t i = 0; i < outputs.size(); i++) { |
| AudioOutputDescriptor *desc = mOutputs.valueFor(outputs[i]); |
| // close unused outputs after device disconnection or direct outputs that have been |
| // opened by checkOutputsForDevice() to query dynamic parameters |
| if ((state == AudioSystem::DEVICE_STATE_UNAVAILABLE) || |
| (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) && |
| (desc->mDirectOpenCount == 0))) { |
| closeOutput(outputs[i]); |
| } |
| } |
| } |
| |
| updateDevicesAndOutputs(); |
| audio_devices_t newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/); |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| if(device == AUDIO_DEVICE_OUT_FM) { |
| if (state == AudioSystem::DEVICE_STATE_AVAILABLE) { |
| mOutputs.valueFor(mPrimaryOutput)->changeRefCount(AudioSystem::MUSIC, 1); |
| newDevice = (audio_devices_t)(getNewDevice(mPrimaryOutput, false) | AUDIO_DEVICE_OUT_FM); |
| } else { |
| mOutputs.valueFor(mPrimaryOutput)->changeRefCount(AudioSystem::MUSIC, -1); |
| } |
| |
| AudioParameter param = AudioParameter(); |
| param.addInt(String8("handle_fm"), (int)newDevice); |
| ALOGV("setDeviceConnectionState() setParameters handle_fm"); |
| mpClientInterface->setParameters(mPrimaryOutput, param.toString()); |
| } |
| #endif |
| for (size_t i = 0; i < mOutputs.size(); i++) { |
| // do not force device change on duplicated output because if device is 0, it will |
| // also force a device 0 for the two outputs it is duplicated to which may override |
| // a valid device selection on those outputs. |
| audio_devices_t cachedDevice = getNewDevice(mOutputs.keyAt(i), true /*fromCache*/); |
| AudioOutputDescriptor *desc = mOutputs.valueFor(mOutputs.keyAt(i)); |
| if (cachedDevice == AUDIO_DEVICE_OUT_SPEAKER && |
| device == AUDIO_DEVICE_OUT_PROXY && |
| (desc->mFlags & AUDIO_OUTPUT_FLAG_FAST)) { |
| ALOGI("Avoid routing touch tone to spkr as proxy is being disconnected"); |
| break; |
| } |
| setOutputDevice(mOutputs.keyAt(i), |
| cachedDevice, |
| !mOutputs.valueAt(i)->isDuplicated(), |
| 0); |
| } |
| |
| if (device == AUDIO_DEVICE_OUT_WIRED_HEADSET) { |
| device = AUDIO_DEVICE_IN_WIRED_HEADSET; |
| } else if (device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO || |
| device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET || |
| device == AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT) { |
| device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; |
| } else if(device == AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET){ |
| device = AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET; |
| } else { |
| return NO_ERROR; |
| } |
| } |
| // handle input devices |
| if (audio_is_input_device(device)) { |
| |
| switch (state) |
| { |
| // handle input device connection |
| case AudioSystem::DEVICE_STATE_AVAILABLE: { |
| if (mAvailableInputDevices & device) { |
| ALOGW("setDeviceConnectionState() device already connected: %d", device); |
| return INVALID_OPERATION; |
| } |
| mAvailableInputDevices = mAvailableInputDevices | (device & ~AUDIO_DEVICE_BIT_IN); |
| } |
| break; |
| |
| // handle input device disconnection |
| case AudioSystem::DEVICE_STATE_UNAVAILABLE: { |
| if (!(mAvailableInputDevices & device)) { |
| ALOGW("setDeviceConnectionState() device not connected: %d", device); |
| return INVALID_OPERATION; |
| } |
| mAvailableInputDevices = (audio_devices_t) (mAvailableInputDevices & ~device); |
| } break; |
| |
| default: |
| ALOGE("setDeviceConnectionState() invalid state: %x", state); |
| return BAD_VALUE; |
| } |
| |
| audio_io_handle_t activeInput = getActiveInput(); |
| if (activeInput != 0) { |
| AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput); |
| audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource); |
| if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) { |
| ALOGV("setDeviceConnectionState() changing device from %x to %x for input %d", |
| inputDesc->mDevice, newDevice, activeInput); |
| inputDesc->mDevice = newDevice; |
| AudioParameter param = AudioParameter(); |
| param.addInt(String8(AudioParameter::keyRouting), (int)newDevice); |
| mpClientInterface->setParameters(activeInput, param.toString()); |
| } |
| } |
| |
| return NO_ERROR; |
| } |
| |
| ALOGW("setDeviceConnectionState() invalid device: %x", device); |
| return BAD_VALUE; |
| } |
| |
| void AudioPolicyManager::setPhoneState(int state) |
| { |
| ALOGV("setPhoneState() state %d", state); |
| audio_devices_t newDevice = AUDIO_DEVICE_NONE; |
| if (state < 0 || state >= AudioSystem::NUM_MODES) { |
| ALOGW("setPhoneState() invalid state %d", state); |
| return; |
| } |
| |
| if (state == mPhoneState ) { |
| ALOGW("setPhoneState() setting same state %d", state); |
| return; |
| } |
| |
| // if leaving call state, handle special case of active streams |
| // pertaining to sonification strategy see handleIncallSonification() |
| if (isInCall()) { |
| ALOGV("setPhoneState() in call state management: new state is %d", state); |
| for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { |
| handleIncallSonification(stream, false, true); |
| } |
| } |
| |
| // store previous phone state for management of sonification strategy below |
| int oldState = mPhoneState; |
| mPhoneState = state; |
| bool force = false; |
| |
| // are we entering or starting a call |
| if (!isStateInCall(oldState) && isStateInCall(state)) { |
| ALOGV(" Entering call in setPhoneState()"); |
| // force routing command to audio hardware when starting a call |
| // even if no device change is needed |
| force = true; |
| for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { |
| mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = |
| sVolumeProfiles[AUDIO_STREAM_VOICE_CALL][j]; |
| } |
| } else if (isStateInCall(oldState) && !isStateInCall(state)) { |
| ALOGV(" Exiting call in setPhoneState()"); |
| // force routing command to audio hardware when exiting a call |
| // even if no device change is needed |
| force = true; |
| for (int j = 0; j < DEVICE_CATEGORY_CNT; j++) { |
| mStreams[AUDIO_STREAM_DTMF].mVolumeCurve[j] = |
| sVolumeProfiles[AUDIO_STREAM_DTMF][j]; |
| } |
| } else if (isStateInCall(state) && (state != oldState)) { |
| ALOGV(" Switching between telephony and VoIP in setPhoneState()"); |
| // force routing command to audio hardware when switching between telephony and VoIP |
| // even if no device change is needed |
| force = true; |
| } |
| |
| // check for device and output changes triggered by new phone state |
| newDevice = getNewDevice(mPrimaryOutput, false /*fromCache*/); |
| checkA2dpSuspend(); |
| checkOutputForAllStrategies(); |
| updateDevicesAndOutputs(); |
| |
| AudioOutputDescriptor *hwOutputDesc = mOutputs.valueFor(mPrimaryOutput); |
| |
| // force routing command to audio hardware when ending call |
| // even if no device change is needed |
| if (isStateInCall(oldState) && newDevice == AUDIO_DEVICE_NONE) { |
| newDevice = hwOutputDesc->device(); |
| } |
| |
| int delayMs = 0; |
| if (isStateInCall(state)) { |
| nsecs_t sysTime = systemTime(); |
| for (size_t i = 0; i < mOutputs.size(); i++) { |
| AudioOutputDescriptor *desc = mOutputs.valueAt(i); |
| // mute media and sonification strategies and delay device switch by the largest |
| // latency of any output where either strategy is active. |
| // This avoid sending the ring tone or music tail into the earpiece or headset. |
| if ((desc->isStrategyActive(STRATEGY_MEDIA, |
| SONIFICATION_HEADSET_MUSIC_DELAY, |
| sysTime) || |
| desc->isStrategyActive(STRATEGY_SONIFICATION, |
| SONIFICATION_HEADSET_MUSIC_DELAY, |
| sysTime)) && |
| (delayMs < (int)desc->mLatency*2)) { |
| delayMs = desc->mLatency*2; |
| } |
| setStrategyMute(STRATEGY_MEDIA, true, mOutputs.keyAt(i)); |
| setStrategyMute(STRATEGY_MEDIA, false, mOutputs.keyAt(i), MUTE_TIME_MS, |
| getDeviceForStrategy(STRATEGY_MEDIA, true /*fromCache*/)); |
| setStrategyMute(STRATEGY_SONIFICATION, true, mOutputs.keyAt(i)); |
| setStrategyMute(STRATEGY_SONIFICATION, false, mOutputs.keyAt(i), MUTE_TIME_MS, |
| getDeviceForStrategy(STRATEGY_SONIFICATION, true /*fromCache*/)); |
| } |
| } |
| |
| // change routing is necessary |
| setOutputDevice(mPrimaryOutput, newDevice, force, delayMs); |
| |
| //update device for all non-primary outputs |
| for (size_t i = 0; i < mOutputs.size(); i++) { |
| audio_io_handle_t output = mOutputs.keyAt(i); |
| if (output != mPrimaryOutput) { |
| newDevice = getNewDevice(output, false /*fromCache*/); |
| setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); |
| } |
| } |
| |
| // if entering in call state, handle special case of active streams |
| // pertaining to sonification strategy see handleIncallSonification() |
| if (isStateInCall(state)) { |
| ALOGV("setPhoneState() in call state management: new state is %d", state); |
| for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) { |
| handleIncallSonification(stream, true, true); |
| } |
| } |
| |
| // Flag that ringtone volume must be limited to music volume until we exit MODE_RINGTONE |
| if (state == AudioSystem::MODE_RINGTONE && |
| isStreamActive(AudioSystem::MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY)) { |
| mLimitRingtoneVolume = true; |
| } else { |
| mLimitRingtoneVolume = false; |
| } |
| } |
| |
| void AudioPolicyManager::setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config) |
| { |
| ALOGV("setForceUse() usage %d, config %d, mPhoneState %d", usage, config, mPhoneState); |
| |
| bool forceVolumeReeval = false; |
| switch(usage) { |
| case AudioSystem::FOR_COMMUNICATION: |
| if (config != AudioSystem::FORCE_SPEAKER && config != AudioSystem::FORCE_BT_SCO && |
| config != AudioSystem::FORCE_NONE) { |
| ALOGW("setForceUse() invalid config %d for FOR_COMMUNICATION", config); |
| return; |
| } |
| forceVolumeReeval = true; |
| mForceUse[usage] = config; |
| break; |
| case AudioSystem::FOR_MEDIA: |
| if (config != AudioSystem::FORCE_HEADPHONES && config != AudioSystem::FORCE_BT_A2DP && |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| config != AudioSystem::FORCE_SPEAKER && |
| #endif |
| config != AudioSystem::FORCE_WIRED_ACCESSORY && |
| config != AudioSystem::FORCE_ANALOG_DOCK && |
| config != AudioSystem::FORCE_DIGITAL_DOCK && config != AudioSystem::FORCE_NONE && |
| config != AudioSystem::FORCE_NO_BT_A2DP) { |
| ALOGW("setForceUse() invalid config %d for FOR_MEDIA", config); |
| return; |
| } |
| mForceUse[usage] = config; |
| break; |
| case AudioSystem::FOR_RECORD: |
| if (config != AudioSystem::FORCE_BT_SCO && config != AudioSystem::FORCE_WIRED_ACCESSORY && |
| config != AudioSystem::FORCE_NONE) { |
| ALOGW("setForceUse() invalid config %d for FOR_RECORD", config); |
| return; |
| } |
| mForceUse[usage] = config; |
| break; |
| case AudioSystem::FOR_DOCK: |
| if (config != AudioSystem::FORCE_NONE && config != AudioSystem::FORCE_BT_CAR_DOCK && |
| config != AudioSystem::FORCE_BT_DESK_DOCK && |
| config != AudioSystem::FORCE_WIRED_ACCESSORY && |
| config != AudioSystem::FORCE_ANALOG_DOCK && |
| config != AudioSystem::FORCE_DIGITAL_DOCK) { |
| ALOGW("setForceUse() invalid config %d for FOR_DOCK", config); |
| } |
| forceVolumeReeval = true; |
| mForceUse[usage] = config; |
| break; |
| case AudioSystem::FOR_SYSTEM: |
| if (config != AudioSystem::FORCE_NONE && |
| config != AudioSystem::FORCE_SYSTEM_ENFORCED) { |
| ALOGW("setForceUse() invalid config %d for FOR_SYSTEM", config); |
| } |
| forceVolumeReeval = true; |
| mForceUse[usage] = config; |
| break; |
| default: |
| ALOGW("setForceUse() invalid usage %d", usage); |
| break; |
| } |
| |
| // check for device and output changes triggered by new force usage |
| checkA2dpSuspend(); |
| checkOutputForAllStrategies(); |
| updateDevicesAndOutputs(); |
| for (int i = mOutputs.size() -1; i >= 0; i--) { |
| audio_io_handle_t output = mOutputs.keyAt(i); |
| audio_devices_t newDevice = getNewDevice(output, true /*fromCache*/); |
| setOutputDevice(output, newDevice, (newDevice != AUDIO_DEVICE_NONE)); |
| if (forceVolumeReeval && (newDevice != AUDIO_DEVICE_NONE)) { |
| applyStreamVolumes(output, newDevice, 0, true); |
| } |
| } |
| |
| audio_io_handle_t activeInput = getActiveInput(); |
| if (activeInput != 0) { |
| AudioInputDescriptor *inputDesc = mInputs.valueFor(activeInput); |
| audio_devices_t newDevice = getDeviceForInputSource(inputDesc->mInputSource); |
| if ((newDevice != AUDIO_DEVICE_NONE) && (newDevice != inputDesc->mDevice)) { |
| ALOGV("setForceUse() changing device from %x to %x for input %d", |
| inputDesc->mDevice, newDevice, activeInput); |
| inputDesc->mDevice = newDevice; |
| AudioParameter param = AudioParameter(); |
| param.addInt(String8(AudioParameter::keyRouting), (int)newDevice); |
| mpClientInterface->setParameters(activeInput, param.toString()); |
| } |
| } |
| |
| } |
| |
| audio_io_handle_t AudioPolicyManager::getInput(int inputSource, |
| uint32_t samplingRate, |
| uint32_t format, |
| uint32_t channelMask, |
| AudioSystem::audio_in_acoustics acoustics) |
| { |
| audio_io_handle_t input = 0; |
| audio_devices_t device = getDeviceForInputSource(inputSource); |
| |
| ALOGV("getInput() inputSource %d, samplingRate %d, format %d, channelMask %x, acoustics %x", |
| inputSource, samplingRate, format, channelMask, acoustics); |
| |
| if (device == AUDIO_DEVICE_NONE) { |
| ALOGW("getInput() could not find device for inputSource %d", inputSource); |
| return 0; |
| } |
| |
| |
| IOProfile *profile = getInputProfile(device, |
| samplingRate, |
| format, |
| channelMask); |
| if (profile == NULL) { |
| ALOGW("getInput() could not find profile for device %04x, samplingRate %d, format %d," |
| "channelMask %04x", |
| device, samplingRate, format, channelMask); |
| return 0; |
| } |
| |
| if (profile->mModule->mHandle == 0) { |
| ALOGE("getInput(): HW module %s not opened", profile->mModule->mName); |
| return 0; |
| } |
| |
| AudioInputDescriptor *inputDesc = new AudioInputDescriptor(profile); |
| |
| inputDesc->mInputSource = inputSource; |
| inputDesc->mDevice = device; |
| inputDesc->mSamplingRate = samplingRate; |
| inputDesc->mFormat = (audio_format_t)format; |
| inputDesc->mChannelMask = (audio_channel_mask_t)channelMask; |
| inputDesc->mRefCount = 0; |
| input = mpClientInterface->openInput(profile->mModule->mHandle, |
| &inputDesc->mDevice, |
| &inputDesc->mSamplingRate, |
| &inputDesc->mFormat, |
| &inputDesc->mChannelMask); |
| |
| // only accept input with the exact requested set of parameters |
| if (input == 0 || |
| (samplingRate != inputDesc->mSamplingRate) || |
| (format != inputDesc->mFormat) || |
| (channelMask != inputDesc->mChannelMask)) { |
| ALOGV("getInput() failed opening input: samplingRate %d, format %d, channelMask %d", |
| samplingRate, format, channelMask); |
| if (input != 0) { |
| mpClientInterface->closeInput(input); |
| } |
| delete inputDesc; |
| return 0; |
| } |
| mInputs.add(input, inputDesc); |
| return input; |
| } |
| |
| AudioPolicyManager::routing_strategy AudioPolicyManager::getStrategy(AudioSystem::stream_type stream) |
| { |
| // stream to strategy mapping |
| switch (stream) { |
| case AudioSystem::VOICE_CALL: |
| case AudioSystem::BLUETOOTH_SCO: |
| return STRATEGY_PHONE; |
| case AudioSystem::RING: |
| case AudioSystem::ALARM: |
| return STRATEGY_SONIFICATION; |
| case AudioSystem::NOTIFICATION: |
| return STRATEGY_SONIFICATION_RESPECTFUL; |
| case AudioSystem::DTMF: |
| return STRATEGY_DTMF; |
| default: |
| ALOGE("unknown stream type"); |
| case AudioSystem::SYSTEM: |
| // NOTE: SYSTEM stream uses MEDIA strategy because muting music and switching outputs |
| // while key clicks are played produces a poor result |
| case AudioSystem::TTS: |
| case AudioSystem::MUSIC: |
| #ifdef AUDIO_EXTN_INCALL_MUSIC_ENABLED |
| case AudioSystem::INCALL_MUSIC: |
| #endif |
| return STRATEGY_MEDIA; |
| case AudioSystem::ENFORCED_AUDIBLE: |
| return STRATEGY_ENFORCED_AUDIBLE; |
| } |
| } |
| |
| audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strategy, |
| bool fromCache) |
| { |
| uint32_t device = AUDIO_DEVICE_NONE; |
| |
| if (fromCache) { |
| ALOGVV("getDeviceForStrategy() from cache strategy %d, device %x", |
| strategy, mDeviceForStrategy[strategy]); |
| return mDeviceForStrategy[strategy]; |
| } |
| |
| switch (strategy) { |
| |
| case STRATEGY_SONIFICATION_RESPECTFUL: |
| if (isInCall()) { |
| device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); |
| } else if (isStreamActiveRemotely(AudioSystem::MUSIC, |
| SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { |
| // while media is playing on a remote device, use the the sonification behavior. |
| // Note that we test this usecase before testing if media is playing because |
| // the isStreamActive() method only informs about the activity of a stream, not |
| // if it's for local playback. Note also that we use the same delay between both tests |
| device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); |
| } else if (isStreamActive(AudioSystem::MUSIC, SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) { |
| // while media is playing (or has recently played), use the same device |
| device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); |
| } else { |
| // when media is not playing anymore, fall back on the sonification behavior |
| device = getDeviceForStrategy(STRATEGY_SONIFICATION, false /*fromCache*/); |
| } |
| |
| break; |
| |
| case STRATEGY_DTMF: |
| if (!isInCall()) { |
| // when off call, DTMF strategy follows the same rules as MEDIA strategy |
| device = getDeviceForStrategy(STRATEGY_MEDIA, false /*fromCache*/); |
| break; |
| } |
| // when in call, DTMF and PHONE strategies follow the same rules |
| // FALL THROUGH |
| |
| case STRATEGY_PHONE: |
| // for phone strategy, we first consider the forced use and then the available devices by order |
| // of priority |
| switch (mForceUse[AudioSystem::FOR_COMMUNICATION]) { |
| case AudioSystem::FORCE_BT_SCO: |
| if (!isInCall() || strategy != STRATEGY_DTMF) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT; |
| if (device) break; |
| } |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_SCO; |
| if (device) break; |
| // if SCO device is requested but no SCO device is available, fall back to default case |
| // FALL THROUGH |
| |
| default: // FORCE_NONE |
| // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP |
| if (mHasA2dp && !isInCall() && |
| (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && |
| (getA2dpOutput() != 0) && !mA2dpSuspended) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; |
| if (device) break; |
| } |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET; |
| if (device) break; |
| if (mPhoneState != AudioSystem::MODE_IN_CALL) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; |
| if (device) break; |
| } |
| |
| // Allow voice call on USB ANLG DOCK headset |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; |
| if (device) break; |
| |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_EARPIECE; |
| if (device) break; |
| device = mDefaultOutputDevice; |
| if (device == AUDIO_DEVICE_NONE) { |
| ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE"); |
| } |
| break; |
| |
| case AudioSystem::FORCE_SPEAKER: |
| // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to |
| // A2DP speaker when forcing to speaker output |
| if (mHasA2dp && !isInCall() && |
| (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && |
| (getA2dpOutput() != 0) && !mA2dpSuspended) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; |
| if (device) break; |
| } |
| if (mPhoneState != AudioSystem::MODE_IN_CALL) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; |
| if (device) break; |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; |
| if (device) break; |
| } |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; |
| if (device) break; |
| device = mDefaultOutputDevice; |
| if (device == AUDIO_DEVICE_NONE) { |
| ALOGE("getDeviceForStrategy() no device found for STRATEGY_PHONE, FORCE_SPEAKER"); |
| } |
| break; |
| } |
| // FIXME: Why do need to replace with speaker? If voice call is active |
| // We should use device from STRATEGY_PHONE |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| if (mAvailableOutputDevices & AUDIO_DEVICE_OUT_FM) { |
| if (mForceUse[AudioSystem::FOR_MEDIA] == AudioSystem::FORCE_SPEAKER) { |
| device = AUDIO_DEVICE_OUT_SPEAKER; |
| } |
| } |
| #endif |
| break; |
| |
| case STRATEGY_SONIFICATION: |
| |
| // If incall, just select the STRATEGY_PHONE device: The rest of the behavior is handled by |
| // handleIncallSonification(). |
| if (isInCall()) { |
| device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); |
| break; |
| } |
| // FALL THROUGH |
| |
| case STRATEGY_ENFORCED_AUDIBLE: |
| // strategy STRATEGY_ENFORCED_AUDIBLE uses same routing policy as STRATEGY_SONIFICATION |
| // except: |
| // - when in call where it doesn't default to STRATEGY_PHONE behavior |
| // - in countries where not enforced in which case it follows STRATEGY_MEDIA |
| |
| if ((strategy == STRATEGY_SONIFICATION) || |
| (mForceUse[AudioSystem::FOR_SYSTEM] == AudioSystem::FORCE_SYSTEM_ENFORCED)) { |
| device = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; |
| if (device == AUDIO_DEVICE_NONE) { |
| ALOGE("getDeviceForStrategy() speaker device not found for STRATEGY_SONIFICATION"); |
| } |
| } |
| // The second device used for sonification is the same as the device used by media strategy |
| // FALL THROUGH |
| |
| case STRATEGY_MEDIA: { |
| uint32_t device2 = AUDIO_DEVICE_NONE; |
| |
| if (isInCall() && (device == AUDIO_DEVICE_NONE)) { |
| // when in call, get the device for Phone strategy |
| device = getDeviceForStrategy(STRATEGY_PHONE, false /*fromCache*/); |
| break; |
| } |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| if (mForceUse[AudioSystem::FOR_MEDIA] == AudioSystem::FORCE_SPEAKER) { |
| device = AUDIO_DEVICE_OUT_SPEAKER; |
| break; |
| } |
| #endif |
| |
| if (strategy != STRATEGY_SONIFICATION) { |
| // no sonification on remote submix (e.g. WFD) |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_REMOTE_SUBMIX; |
| } |
| if ((device2 == AUDIO_DEVICE_NONE) && |
| mHasA2dp && (mForceUse[AudioSystem::FOR_MEDIA] != AudioSystem::FORCE_NO_BT_A2DP) && |
| (getA2dpOutput() != 0) && !mA2dpSuspended) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP; |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; |
| } |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE; |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_WIRED_HEADSET; |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_ACCESSORY; |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_USB_DEVICE; |
| } |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET; |
| } |
| if ((strategy != STRATEGY_SONIFICATION) && (device == AUDIO_DEVICE_NONE) |
| && (device2 == AUDIO_DEVICE_NONE)) { |
| // no sonification on aux digital (e.g. HDMI) |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_AUX_DIGITAL; |
| } |
| if ((device2 == AUDIO_DEVICE_NONE) && |
| (mForceUse[AudioSystem::FOR_DOCK] == AudioSystem::FORCE_ANALOG_DOCK) |
| && (strategy != STRATEGY_SONIFICATION)) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET; |
| } |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| if ((strategy != STRATEGY_SONIFICATION) && (device == AUDIO_DEVICE_NONE) |
| && (device2 == AUDIO_DEVICE_NONE)) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_FM_TX; |
| } |
| #endif |
| #ifdef AUDIO_EXTN_AFE_PROXY_ENABLED |
| if ((strategy != STRATEGY_SONIFICATION) && (device == AUDIO_DEVICE_NONE) |
| && (device2 == AUDIO_DEVICE_NONE)) { |
| // no sonification on WFD sink |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_PROXY; |
| } |
| #endif |
| if (device2 == AUDIO_DEVICE_NONE) { |
| device2 = mAvailableOutputDevices & AUDIO_DEVICE_OUT_SPEAKER; |
| } |
| |
| // device is DEVICE_OUT_SPEAKER if we come from case STRATEGY_SONIFICATION or |
| // STRATEGY_ENFORCED_AUDIBLE, AUDIO_DEVICE_NONE otherwise |
| device |= device2; |
| if (device) break; |
| device = mDefaultOutputDevice; |
| if (device == AUDIO_DEVICE_NONE) { |
| ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA"); |
| } |
| } break; |
| |
| default: |
| ALOGW("getDeviceForStrategy() unknown strategy: %d", strategy); |
| break; |
| } |
| |
| ALOGVV("getDeviceForStrategy() strategy %d, device %x", strategy, device); |
| return device; |
| } |
| |
| audio_devices_t AudioPolicyManager::getDeviceForInputSource(int inputSource) |
| { |
| uint32_t device = AUDIO_DEVICE_NONE; |
| |
| switch (inputSource) { |
| case AUDIO_SOURCE_VOICE_UPLINK: |
| if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) { |
| device = AUDIO_DEVICE_IN_VOICE_CALL; |
| break; |
| } |
| // FALL THROUGH |
| |
| case AUDIO_SOURCE_DEFAULT: |
| case AUDIO_SOURCE_MIC: |
| case AUDIO_SOURCE_VOICE_RECOGNITION: |
| case AUDIO_SOURCE_HOTWORD: |
| case AUDIO_SOURCE_VOICE_COMMUNICATION: |
| if (mForceUse[AudioSystem::FOR_RECORD] == AudioSystem::FORCE_BT_SCO && |
| mAvailableInputDevices & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) { |
| device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET; |
| } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_WIRED_HEADSET) { |
| device = AUDIO_DEVICE_IN_WIRED_HEADSET; |
| } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET) { |
| device = AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET; |
| } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) { |
| device = AUDIO_DEVICE_IN_BUILTIN_MIC; |
| } |
| break; |
| case AUDIO_SOURCE_CAMCORDER: |
| if (mAvailableInputDevices & AUDIO_DEVICE_IN_BACK_MIC) { |
| device = AUDIO_DEVICE_IN_BACK_MIC; |
| } else if (mAvailableInputDevices & AUDIO_DEVICE_IN_BUILTIN_MIC) { |
| device = AUDIO_DEVICE_IN_BUILTIN_MIC; |
| } |
| break; |
| case AUDIO_SOURCE_VOICE_DOWNLINK: |
| case AUDIO_SOURCE_VOICE_CALL: |
| if (mAvailableInputDevices & AUDIO_DEVICE_IN_VOICE_CALL) { |
| device = AUDIO_DEVICE_IN_VOICE_CALL; |
| } |
| break; |
| case AUDIO_SOURCE_REMOTE_SUBMIX: |
| if (mAvailableInputDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) { |
| device = AUDIO_DEVICE_IN_REMOTE_SUBMIX; |
| } |
| break; |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| case AUDIO_SOURCE_FM_RX: |
| device = AUDIO_DEVICE_IN_FM_RX; |
| break; |
| case AUDIO_SOURCE_FM_RX_A2DP: |
| device = AUDIO_DEVICE_IN_FM_RX_A2DP; |
| break; |
| #endif |
| default: |
| ALOGW("getDeviceForInputSource() invalid input source %d", inputSource); |
| break; |
| } |
| ALOGV("getDeviceForInputSource()input source %d, device %08x", inputSource, device); |
| return device; |
| } |
| |
| AudioPolicyManager::device_category AudioPolicyManager::getDeviceCategory(audio_devices_t device) |
| { |
| switch(getDeviceForVolume(device)) { |
| case AUDIO_DEVICE_OUT_EARPIECE: |
| return 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: |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| case AUDIO_DEVICE_OUT_FM: |
| #endif |
| return DEVICE_CATEGORY_HEADSET; |
| case AUDIO_DEVICE_OUT_SPEAKER: |
| case AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT: |
| case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER: |
| case AUDIO_DEVICE_OUT_AUX_DIGITAL: |
| case AUDIO_DEVICE_OUT_USB_ACCESSORY: |
| case AUDIO_DEVICE_OUT_USB_DEVICE: |
| case AUDIO_DEVICE_OUT_REMOTE_SUBMIX: |
| #ifdef AUDIO_EXTN_AFE_PROXY_ENABLED |
| case AUDIO_DEVICE_OUT_PROXY: |
| #endif |
| default: |
| return DEVICE_CATEGORY_SPEAKER; |
| } |
| } |
| |
| status_t AudioPolicyManager::checkAndSetVolume(int stream, |
| int index, |
| audio_io_handle_t output, |
| audio_devices_t device, |
| int delayMs, |
| bool force) |
| { |
| ALOGV("checkAndSetVolume: index %d output %d device %x", index, output, device); |
| // do not change actual stream volume if the stream is muted |
| if (mOutputs.valueFor(output)->mMuteCount[stream] != 0) { |
| ALOGVV("checkAndSetVolume() stream %d muted count %d", |
| stream, mOutputs.valueFor(output)->mMuteCount[stream]); |
| return NO_ERROR; |
| } |
| |
| // do not change in call volume if bluetooth is connected and vice versa |
| if ((stream == AudioSystem::VOICE_CALL && mForceUse[AudioSystem::FOR_COMMUNICATION] == AudioSystem::FORCE_BT_SCO) || |
| (stream == AudioSystem::BLUETOOTH_SCO && mForceUse[AudioSystem::FOR_COMMUNICATION] != AudioSystem::FORCE_BT_SCO)) { |
| ALOGV("checkAndSetVolume() cannot set stream %d volume with force use = %d for comm", |
| stream, mForceUse[AudioSystem::FOR_COMMUNICATION]); |
| return INVALID_OPERATION; |
| } |
| |
| float volume = computeVolume(stream, index, output, device); |
| // We actually change the volume if: |
| // - the float value returned by computeVolume() changed |
| // - the force flag is set |
| if (volume != mOutputs.valueFor(output)->mCurVolume[stream] || |
| force) { |
| mOutputs.valueFor(output)->mCurVolume[stream] = volume; |
| ALOGV("checkAndSetVolume() for output %d stream %d, volume %f, delay %d", output, stream, volume, delayMs); |
| // Force VOICE_CALL to track BLUETOOTH_SCO stream volume when bluetooth audio is |
| // enabled |
| if (stream == AudioSystem::BLUETOOTH_SCO) { |
| mpClientInterface->setStreamVolume(AudioSystem::VOICE_CALL, volume, output, delayMs); |
| #ifdef AUDIO_EXTN_FM_ENABLED |
| } else if (stream == AudioSystem::MUSIC && |
| output == mPrimaryOutput) { |
| float fmVolume = -1.0; |
| fmVolume = computeVolume(stream, index, output, device); |
| if (fmVolume >= 0) { |
| AudioParameter param = AudioParameter(); |
| param.addFloat(String8("fm_volume"), fmVolume); |
| ALOGV("checkAndSetVolume setParameters fm_volume, volume=:%f delay=:%d",fmVolume,delayMs*2); |
| //Double delayMs to avoid sound burst while device switch. |
| mpClientInterface->setParameters(mPrimaryOutput, param.toString(), delayMs*2); |
| } |
| #endif |
| } |
| mpClientInterface->setStreamVolume((AudioSystem::stream_type)stream, volume, output, delayMs); |
| } |
| |
| if (stream == AudioSystem::VOICE_CALL || |
| stream == AudioSystem::BLUETOOTH_SCO) { |
| float voiceVolume; |
| |
| if (stream == AudioSystem::VOICE_CALL) |
| voiceVolume = (float)index/(float)mStreams[stream].mIndexMax; |
| else |
| // Force voice volume to max for bluetooth SCO as volume is managed by the headset |
| voiceVolume = 1.0; |
| |
| if (voiceVolume != mLastVoiceVolume && output == mPrimaryOutput) { |
| mpClientInterface->setVoiceVolume(voiceVolume, delayMs); |
| mLastVoiceVolume = voiceVolume; |
| } |
| } |
| |
| return NO_ERROR; |
| } |
| |
| |
| float AudioPolicyManager::computeVolume(int stream, |
| int index, |
| audio_io_handle_t output, |
| audio_devices_t device) |
| { |
| float volume = 1.0; |
| AudioOutputDescriptor *outputDesc = mOutputs.valueFor(output); |
| |
| if (device == AUDIO_DEVICE_NONE) { |
| device = outputDesc->device(); |
| } |
| |
| // if volume is not 0 (not muted), force media volume to max on digital output |
| if (stream == AudioSystem::MUSIC && |
| index != mStreams[stream].mIndexMin && |
| (device == AUDIO_DEVICE_OUT_AUX_DIGITAL || |
| device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET || |
| device == AUDIO_DEVICE_OUT_USB_ACCESSORY || |
| #ifdef AUDIO_EXTN_AFE_PROXY_ENABLED |
| device == AUDIO_DEVICE_OUT_PROXY || |
| #endif |
| device == AUDIO_DEVICE_OUT_USB_DEVICE )) { |
| return 1.0; |
| } |
| #ifdef AUDIO_EXTN_INCALL_MUSIC_ENABLED |
| if (stream == AudioSystem::INCALL_MUSIC) { |
| return 1.0; |
| } |
| #endif |
| return AudioPolicyManagerBase::computeVolume(stream, index, output, device); |
| } |
| |
| // This function checks for the parameters which can be offloaded. |
| // This can be enhanced depending on the capability of the DSP and policy |
| // of the system. |
| bool AudioPolicyManager::isOffloadSupported(const audio_offload_info_t& offloadInfo) |
| { |
| ALOGV(" isOffloadSupported: SR=%u, CM=0x%x, Format=0x%x, StreamType=%d," |
| " BitRate=%u, duration=%lld us, has_video=%d", |
| offloadInfo.sample_rate, offloadInfo.channel_mask, |
| offloadInfo.format, |
| offloadInfo.stream_type, offloadInfo.bit_rate, offloadInfo.duration_us, |
| offloadInfo.has_video); |
| |
| #ifdef VOICE_CONCURRENCY |
| if(isInCall()) |
| { |
| ALOGD("\n blocking compress offload on call mode\n"); |
| return false; |
| } |
| #endif |
| // Check if stream type is music, then only allow offload as of now. |
| if (offloadInfo.stream_type != AUDIO_STREAM_MUSIC) |
| { |
| ALOGV("isOffloadSupported: stream_type != MUSIC, returning false"); |
| return false; |
| } |
| |
| char propValue[PROPERTY_VALUE_MAX]; |
| bool pcmOffload = false; |
| if (audio_is_offload_pcm(offloadInfo.format)) { |
| if(property_get("audio.offload.pcm.enable", propValue, NULL)) { |
| bool prop_enabled = atoi(propValue) || !strncmp("true", propValue, 4); |
| if (prop_enabled) { |
| ALOGW("PCM offload property is enabled"); |
| pcmOffload = true; |
| } |
| } |
| if (!pcmOffload) { |
| ALOGV("PCM offload disabled by property audio.offload.pcm.enable"); |
| return false; |
| } |
| } |
| |
| if (!pcmOffload) { |
| // Check if offload has been disabled |
| if (property_get("audio.offload.disable", propValue, "0")) { |
| if (atoi(propValue) != 0) { |
| ALOGV("offload disabled by audio.offload.disable=%s", propValue ); |
| return false; |
| } |
| } |
| |
| //check if it's multi-channel AAC format |
| if (AudioSystem::popCount(offloadInfo.channel_mask) > 2 |
| && offloadInfo.format == AUDIO_FORMAT_AAC) { |
| ALOGV("offload disabled for multi-channel AAC format"); |
| return false; |
| } |
| |
| if (offloadInfo.has_video) |
| { |
| if(property_get("av.offload.enable", propValue, NULL)) { |
| bool prop_enabled = atoi(propValue) || !strncmp("true", propValue, 4); |
| if (!prop_enabled) { |
| ALOGW("offload disabled by av.offload.enable = %s ", propValue ); |
| return false; |
| } |
| } else { |
| return false; |
| } |
| |
| if(offloadInfo.is_streaming) { |
| if (property_get("av.streaming.offload.enable", propValue, NULL)) { |
| bool prop_enabled = atoi(propValue) || !strncmp("true", propValue, 4); |
| if (!prop_enabled) { |
| ALOGW("offload disabled by av.streaming.offload.enable = %s ", propValue ); |
| return false; |
| } |
| } else { |
| //Do not offload AV streamnig if the property is not defined |
| return false; |
| } |
| } |
| ALOGV("isOffloadSupported: has_video == true, property\ |
| set to enable offload"); |
| } |
| } |
| |
| //If duration is less than minimum value defined in property, return false |
| if (property_get("audio.offload.min.duration.secs", propValue, NULL)) { |
| if (offloadInfo.duration_us < (atoi(propValue) * 1000000 )) { |
| ALOGV("Offload denied by duration < audio.offload.min.duration.secs(=%s)", propValue); |
| return false; |
| } |
| } else if (offloadInfo.duration_us < OFFLOAD_DEFAULT_MIN_DURATION_SECS * 1000000) { |
| ALOGV("Offload denied by duration < default min(=%u)", OFFLOAD_DEFAULT_MIN_DURATION_SECS); |
| //duration checks only valid for MP3/AAC formats, |
| //do not check duration for other audio formats, e.g. dolby AAC/AC3 and amrwb+ formats |
| if (offloadInfo.format == AUDIO_FORMAT_MP3 || offloadInfo.format == AUDIO_FORMAT_AAC || pcmOffload) |
| return false; |
| } |
| |
| // Do not allow offloading if one non offloadable effect is enabled. This prevents from |
| // creating an offloaded track and tearing it down immediately after start when audioflinger |
| // detects there is an active non offloadable effect. |
| // FIXME: We should check the audio session here but we do not have it in this context. |
| // This may prevent offloading in rare situations where effects are left active by apps |
| // in the background. |
| if (isNonOffloadableEffectEnabled()) { |
| return false; |
| } |
| |
| // See if there is a profile to support this. |
| // AUDIO_DEVICE_NONE |
| IOProfile *profile = getProfileForDirectOutput(AUDIO_DEVICE_NONE /*ignore device */, |
| offloadInfo.sample_rate, |
| offloadInfo.format, |
| offloadInfo.channel_mask, |
| AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD); |
| ALOGV("isOffloadSupported() profile %sfound", profile != NULL ? "" : "NOT "); |
| return (profile != NULL); |
| } |
| |
| extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface) |
| { |
| return new AudioPolicyManager(clientInterface); |
| } |
| |
| extern "C" void destroyAudioPolicyManager(AudioPolicyInterface *interface) |
| { |
| delete interface; |
| } |
| |
| }; // namespace android |