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996 lines
48 KiB
996 lines
48 KiB
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/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_AUDIOPOLICYSERVICE_H
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#define ANDROID_AUDIOPOLICYSERVICE_H
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#include <android/media/BnAudioPolicyService.h>
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#include <android-base/thread_annotations.h>
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#include <cutils/misc.h>
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#include <cutils/config_utils.h>
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#include <cutils/compiler.h>
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#include <utils/String8.h>
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#include <utils/Vector.h>
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#include <utils/SortedVector.h>
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#include <binder/ActivityManager.h>
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#include <binder/AppOpsManager.h>
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#include <binder/BinderService.h>
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#include <binder/IUidObserver.h>
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#include <system/audio.h>
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#include <system/audio_policy.h>
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#include <media/ToneGenerator.h>
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#include <media/AudioEffect.h>
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#include <media/AudioPolicy.h>
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#include <mediautils/ServiceUtilities.h>
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#include "AudioPolicyEffects.h"
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#include "CaptureStateNotifier.h"
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#include <AudioPolicyInterface.h>
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#include <android/hardware/BnSensorPrivacyListener.h>
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#include <android/content/AttributionSourceState.h>
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#include <unordered_map>
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namespace android {
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using content::AttributionSourceState;
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// ----------------------------------------------------------------------------
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class AudioPolicyService :
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public BinderService<AudioPolicyService>,
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public media::BnAudioPolicyService,
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public IBinder::DeathRecipient
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{
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friend class BinderService<AudioPolicyService>;
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public:
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// for BinderService
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static const char *getServiceName() ANDROID_API { return "media.audio_policy"; }
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virtual status_t dump(int fd, const Vector<String16>& args);
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//
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// BnAudioPolicyService (see AudioPolicyInterface for method descriptions)
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//
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binder::Status onNewAudioModulesAvailable() override;
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binder::Status setDeviceConnectionState(
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const media::AudioDevice& device,
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media::AudioPolicyDeviceState state,
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const std::string& deviceName,
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media::audio::common::AudioFormat encodedFormat) override;
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binder::Status getDeviceConnectionState(const media::AudioDevice& device,
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media::AudioPolicyDeviceState* _aidl_return) override;
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binder::Status handleDeviceConfigChange(
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const media::AudioDevice& device,
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const std::string& deviceName,
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media::audio::common::AudioFormat encodedFormat) override;
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binder::Status setPhoneState(media::AudioMode state, int32_t uid) override;
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binder::Status setForceUse(media::AudioPolicyForceUse usage,
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media::AudioPolicyForcedConfig config) override;
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binder::Status getForceUse(media::AudioPolicyForceUse usage,
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media::AudioPolicyForcedConfig* _aidl_return) override;
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binder::Status getOutput(media::AudioStreamType stream, int32_t* _aidl_return) override;
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binder::Status getOutputForAttr(const media::AudioAttributesInternal& attr, int32_t session,
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const AttributionSourceState &attributionSource,
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const media::AudioConfig& config,
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int32_t flags, int32_t selectedDeviceId,
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media::GetOutputForAttrResponse* _aidl_return) override;
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binder::Status startOutput(int32_t portId) override;
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binder::Status stopOutput(int32_t portId) override;
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binder::Status releaseOutput(int32_t portId) override;
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binder::Status getInputForAttr(const media::AudioAttributesInternal& attr, int32_t input,
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int32_t riid, int32_t session,
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const AttributionSourceState &attributionSource,
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const media::AudioConfigBase& config, int32_t flags,
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int32_t selectedDeviceId,
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media::GetInputForAttrResponse* _aidl_return) override;
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binder::Status startInput(int32_t portId) override;
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binder::Status stopInput(int32_t portId) override;
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binder::Status releaseInput(int32_t portId) override;
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binder::Status initStreamVolume(media::AudioStreamType stream, int32_t indexMin,
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int32_t indexMax) override;
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binder::Status setStreamVolumeIndex(media::AudioStreamType stream, int32_t device,
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int32_t index) override;
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binder::Status getStreamVolumeIndex(media::AudioStreamType stream, int32_t device,
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int32_t* _aidl_return) override;
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binder::Status setVolumeIndexForAttributes(const media::AudioAttributesInternal& attr,
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int32_t device, int32_t index) override;
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binder::Status getVolumeIndexForAttributes(const media::AudioAttributesInternal& attr,
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int32_t device, int32_t* _aidl_return) override;
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binder::Status getMaxVolumeIndexForAttributes(const media::AudioAttributesInternal& attr,
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int32_t* _aidl_return) override;
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binder::Status getMinVolumeIndexForAttributes(const media::AudioAttributesInternal& attr,
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int32_t* _aidl_return) override;
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binder::Status getStrategyForStream(media::AudioStreamType stream,
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int32_t* _aidl_return) override;
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binder::Status getDevicesForStream(media::AudioStreamType stream,
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int32_t* _aidl_return) override;
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binder::Status getDevicesForAttributes(const media::AudioAttributesEx& attr,
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std::vector<media::AudioDevice>* _aidl_return) override;
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binder::Status getOutputForEffect(const media::EffectDescriptor& desc,
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int32_t* _aidl_return) override;
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binder::Status registerEffect(const media::EffectDescriptor& desc, int32_t io, int32_t strategy,
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int32_t session, int32_t id) override;
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binder::Status unregisterEffect(int32_t id) override;
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binder::Status setEffectEnabled(int32_t id, bool enabled) override;
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binder::Status moveEffectsToIo(const std::vector<int32_t>& ids, int32_t io) override;
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binder::Status isStreamActive(media::AudioStreamType stream, int32_t inPastMs,
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bool* _aidl_return) override;
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binder::Status isStreamActiveRemotely(media::AudioStreamType stream, int32_t inPastMs,
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bool* _aidl_return) override;
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binder::Status isSourceActive(media::AudioSourceType source, bool* _aidl_return) override;
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binder::Status queryDefaultPreProcessing(
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int32_t audioSession, media::Int* count,
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std::vector<media::EffectDescriptor>* _aidl_return) override;
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binder::Status addSourceDefaultEffect(const media::AudioUuid& type,
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const std::string& opPackageName,
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const media::AudioUuid& uuid, int32_t priority,
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media::AudioSourceType source,
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int32_t* _aidl_return) override;
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binder::Status addStreamDefaultEffect(const media::AudioUuid& type,
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const std::string& opPackageName,
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const media::AudioUuid& uuid, int32_t priority,
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media::AudioUsage usage, int32_t* _aidl_return) override;
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binder::Status removeSourceDefaultEffect(int32_t id) override;
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binder::Status removeStreamDefaultEffect(int32_t id) override;
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binder::Status setSupportedSystemUsages(
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const std::vector<media::AudioUsage>& systemUsages) override;
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binder::Status setAllowedCapturePolicy(int32_t uid, int32_t capturePolicy) override;
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binder::Status getOffloadSupport(const media::AudioOffloadInfo& info,
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media::AudioOffloadMode* _aidl_return) override;
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binder::Status isDirectOutputSupported(const media::AudioConfigBase& config,
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const media::AudioAttributesInternal& attributes,
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bool* _aidl_return) override;
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binder::Status listAudioPorts(media::AudioPortRole role, media::AudioPortType type,
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media::Int* count, std::vector<media::AudioPort>* ports,
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int32_t* _aidl_return) override;
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binder::Status getAudioPort(const media::AudioPort& port,
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media::AudioPort* _aidl_return) override;
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binder::Status createAudioPatch(const media::AudioPatch& patch, int32_t handle,
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int32_t* _aidl_return) override;
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binder::Status releaseAudioPatch(int32_t handle) override;
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binder::Status listAudioPatches(media::Int* count, std::vector<media::AudioPatch>* patches,
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int32_t* _aidl_return) override;
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binder::Status setAudioPortConfig(const media::AudioPortConfig& config) override;
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binder::Status registerClient(const sp<media::IAudioPolicyServiceClient>& client) override;
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binder::Status setAudioPortCallbacksEnabled(bool enabled) override;
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binder::Status setAudioVolumeGroupCallbacksEnabled(bool enabled) override;
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binder::Status acquireSoundTriggerSession(media::SoundTriggerSession* _aidl_return) override;
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binder::Status releaseSoundTriggerSession(int32_t session) override;
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binder::Status getPhoneState(media::AudioMode* _aidl_return) override;
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binder::Status registerPolicyMixes(const std::vector<media::AudioMix>& mixes,
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bool registration) override;
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binder::Status setUidDeviceAffinities(int32_t uid,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status removeUidDeviceAffinities(int32_t uid) override;
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binder::Status setUserIdDeviceAffinities(
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int32_t userId,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status removeUserIdDeviceAffinities(int32_t userId) override;
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binder::Status startAudioSource(const media::AudioPortConfig& source,
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const media::AudioAttributesInternal& attributes,
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int32_t* _aidl_return) override;
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binder::Status stopAudioSource(int32_t portId) override;
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binder::Status setMasterMono(bool mono) override;
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binder::Status getMasterMono(bool* _aidl_return) override;
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binder::Status getStreamVolumeDB(media::AudioStreamType stream, int32_t index, int32_t device,
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float* _aidl_return) override;
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binder::Status getSurroundFormats(media::Int* count,
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std::vector<media::audio::common::AudioFormat>* formats,
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std::vector<bool>* formatsEnabled) override;
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binder::Status getReportedSurroundFormats(
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media::Int* count, std::vector<media::audio::common::AudioFormat>* formats) override;
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binder::Status getHwOffloadEncodingFormatsSupportedForA2DP(
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std::vector<media::audio::common::AudioFormat>* _aidl_return) override;
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binder::Status setSurroundFormatEnabled(media::audio::common::AudioFormat audioFormat,
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bool enabled) override;
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binder::Status setAssistantUid(int32_t uid) override;
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binder::Status setHotwordDetectionServiceUid(int32_t uid) override;
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binder::Status setA11yServicesUids(const std::vector<int32_t>& uids) override;
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binder::Status setCurrentImeUid(int32_t uid) override;
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binder::Status isHapticPlaybackSupported(bool* _aidl_return) override;
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binder::Status listAudioProductStrategies(
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std::vector<media::AudioProductStrategy>* _aidl_return) override;
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binder::Status getProductStrategyFromAudioAttributes(const media::AudioAttributesEx& aa,
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bool fallbackOnDefault,
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int32_t* _aidl_return) override;
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binder::Status listAudioVolumeGroups(
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std::vector<media::AudioVolumeGroup>* _aidl_return) override;
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binder::Status getVolumeGroupFromAudioAttributes(const media::AudioAttributesEx& aa,
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bool fallbackOnDefault,
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int32_t* _aidl_return) override;
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binder::Status setRttEnabled(bool enabled) override;
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binder::Status isCallScreenModeSupported(bool* _aidl_return) override;
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binder::Status setDevicesRoleForStrategy(
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int32_t strategy, media::DeviceRole role,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status removeDevicesRoleForStrategy(int32_t strategy, media::DeviceRole role) override;
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binder::Status getDevicesForRoleAndStrategy(
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int32_t strategy, media::DeviceRole role,
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std::vector<media::AudioDevice>* _aidl_return) override;
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binder::Status setDevicesRoleForCapturePreset(
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media::AudioSourceType audioSource,
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media::DeviceRole role,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status addDevicesRoleForCapturePreset(
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media::AudioSourceType audioSource,
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media::DeviceRole role,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status removeDevicesRoleForCapturePreset(
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media::AudioSourceType audioSource,
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media::DeviceRole role,
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const std::vector<media::AudioDevice>& devices) override;
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binder::Status clearDevicesRoleForCapturePreset(media::AudioSourceType audioSource,
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media::DeviceRole role) override;
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binder::Status getDevicesForRoleAndCapturePreset(
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media::AudioSourceType audioSource,
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media::DeviceRole role,
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std::vector<media::AudioDevice>* _aidl_return) override;
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binder::Status registerSoundTriggerCaptureStateListener(
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const sp<media::ICaptureStateListener>& listener, bool* _aidl_return) override;
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virtual status_t onTransact(
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uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags);
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// IBinder::DeathRecipient
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virtual void binderDied(const wp<IBinder>& who);
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// RefBase
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virtual void onFirstRef();
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//
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// Helpers for the struct audio_policy_service_ops implementation.
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// This is used by the audio policy manager for certain operations that
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// are implemented by the policy service.
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//
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virtual void setParameters(audio_io_handle_t ioHandle,
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const char *keyValuePairs,
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int delayMs);
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virtual status_t setStreamVolume(audio_stream_type_t stream,
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float volume,
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audio_io_handle_t output,
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int delayMs = 0);
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virtual status_t setVoiceVolume(float volume, int delayMs = 0);
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void doOnNewAudioModulesAvailable();
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status_t doStopOutput(audio_port_handle_t portId);
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void doReleaseOutput(audio_port_handle_t portId);
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status_t clientCreateAudioPatch(const struct audio_patch *patch,
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audio_patch_handle_t *handle,
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int delayMs);
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status_t clientReleaseAudioPatch(audio_patch_handle_t handle,
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int delayMs);
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virtual status_t clientSetAudioPortConfig(const struct audio_port_config *config,
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int delayMs);
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void removeNotificationClient(uid_t uid, pid_t pid);
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void onAudioPortListUpdate();
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void doOnAudioPortListUpdate();
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void onAudioPatchListUpdate();
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void doOnAudioPatchListUpdate();
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void onDynamicPolicyMixStateUpdate(const String8& regId, int32_t state);
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void doOnDynamicPolicyMixStateUpdate(const String8& regId, int32_t state);
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void onRecordingConfigurationUpdate(int event,
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const record_client_info_t *clientInfo,
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const audio_config_base_t *clientConfig,
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std::vector<effect_descriptor_t> clientEffects,
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const audio_config_base_t *deviceConfig,
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std::vector<effect_descriptor_t> effects,
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audio_patch_handle_t patchHandle,
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audio_source_t source);
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void doOnRecordingConfigurationUpdate(int event,
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const record_client_info_t *clientInfo,
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const audio_config_base_t *clientConfig,
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std::vector<effect_descriptor_t> clientEffects,
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const audio_config_base_t *deviceConfig,
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std::vector<effect_descriptor_t> effects,
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audio_patch_handle_t patchHandle,
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audio_source_t source);
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void onAudioVolumeGroupChanged(volume_group_t group, int flags);
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void doOnAudioVolumeGroupChanged(volume_group_t group, int flags);
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void onRoutingUpdated();
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void doOnRoutingUpdated();
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void setEffectSuspended(int effectId,
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audio_session_t sessionId,
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bool suspended);
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private:
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AudioPolicyService() ANDROID_API;
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virtual ~AudioPolicyService();
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status_t dumpInternals(int fd) REQUIRES(mLock);
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// Handles binder shell commands
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virtual status_t shellCommand(int in, int out, int err, Vector<String16>& args);
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class AudioRecordClient;
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// Sets whether the given UID records only silence
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virtual void setAppState_l(sp<AudioRecordClient> client, app_state_t state) REQUIRES(mLock);
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// Overrides the UID state as if it is idle
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status_t handleSetUidState(Vector<String16>& args, int err);
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// Clears the override for the UID state
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status_t handleResetUidState(Vector<String16>& args, int err);
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// Gets the UID state
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status_t handleGetUidState(Vector<String16>& args, int out, int err);
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// Prints the shell command help
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status_t printHelp(int out);
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std::string getDeviceTypeStrForPortId(audio_port_handle_t portId);
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status_t getAudioPolicyEffects(sp<AudioPolicyEffects>& audioPolicyEffects);
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app_state_t apmStatFromAmState(int amState);
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bool isSupportedSystemUsage(audio_usage_t usage);
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status_t validateUsage(audio_usage_t usage);
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status_t validateUsage(audio_usage_t usage, const AttributionSourceState& attributionSource);
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void updateUidStates();
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void updateUidStates_l() REQUIRES(mLock);
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void silenceAllRecordings_l() REQUIRES(mLock);
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static bool isVirtualSource(audio_source_t source);
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/** returns true if the audio source must be silenced when the corresponding app op is denied.
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* false if the audio source does not actually capture from the microphone while still
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* being mapped to app op OP_RECORD_AUDIO and not a specialized op tracked separately.
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* See getOpForSource().
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*/
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static bool isAppOpSource(audio_source_t source);
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// If recording we need to make sure the UID is allowed to do that. If the UID is idle
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// then it cannot record and gets buffers with zeros - silence. As soon as the UID
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// transitions to an active state we will start reporting buffers with data. This approach
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// transparently handles recording while the UID transitions between idle/active state
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// avoiding to get stuck in a state receiving non-empty buffers while idle or in a state
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// receiving empty buffers while active.
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class UidPolicy : public BnUidObserver, public virtual IBinder::DeathRecipient {
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public:
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explicit UidPolicy(wp<AudioPolicyService> service)
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: mService(service), mObserverRegistered(false),
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mAssistantUid(0), mHotwordDetectionServiceUid(0), mCurrentImeUid(0),
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mRttEnabled(false) {}
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void registerSelf();
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void unregisterSelf();
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// IBinder::DeathRecipient implementation
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void binderDied(const wp<IBinder> &who) override;
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bool isUidActive(uid_t uid);
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int getUidState(uid_t uid);
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void setAssistantUid(uid_t uid) { mAssistantUid = uid; };
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void setHotwordDetectionServiceUid(uid_t uid) { mHotwordDetectionServiceUid = uid; }
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bool isAssistantUid(uid_t uid) const {
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// The HotwordDetectionService is part of the Assistant package but runs with a separate
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// (isolated) uid, so we check for either uid here.
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return uid == mAssistantUid || uid == mHotwordDetectionServiceUid;
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}
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void setA11yUids(const std::vector<uid_t>& uids) { mA11yUids.clear(); mA11yUids = uids; }
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bool isA11yUid(uid_t uid);
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bool isA11yOnTop();
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void setCurrentImeUid(uid_t uid) { mCurrentImeUid = uid; }
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bool isCurrentImeUid(uid_t uid) { return uid == mCurrentImeUid; }
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void setRttEnabled(bool enabled) { mRttEnabled = enabled; }
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bool isRttEnabled() { return mRttEnabled; }
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// BnUidObserver implementation
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void onUidActive(uid_t uid) override;
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void onUidGone(uid_t uid, bool disabled) override;
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void onUidIdle(uid_t uid, bool disabled) override;
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void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq,
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int32_t capability);
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|
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void addOverrideUid(uid_t uid, bool active) { updateOverrideUid(uid, active, true); }
|
|
void removeOverrideUid(uid_t uid) { updateOverrideUid(uid, false, false); }
|
|
|
|
void updateUid(std::unordered_map<uid_t, std::pair<bool, int>> *uids,
|
|
uid_t uid, bool active, int state, bool insert);
|
|
|
|
private:
|
|
void notifyService();
|
|
void updateOverrideUid(uid_t uid, bool active, bool insert);
|
|
void updateUidLocked(std::unordered_map<uid_t, std::pair<bool, int>> *uids,
|
|
uid_t uid, bool active, int state, bool insert);
|
|
void checkRegistered();
|
|
|
|
wp<AudioPolicyService> mService;
|
|
Mutex mLock;
|
|
ActivityManager mAm;
|
|
bool mObserverRegistered = false;
|
|
std::unordered_map<uid_t, std::pair<bool, int>> mOverrideUids;
|
|
std::unordered_map<uid_t, std::pair<bool, int>> mCachedUids;
|
|
uid_t mAssistantUid = -1;
|
|
uid_t mHotwordDetectionServiceUid = -1;
|
|
std::vector<uid_t> mA11yUids;
|
|
uid_t mCurrentImeUid = -1;
|
|
bool mRttEnabled = false;
|
|
};
|
|
|
|
// If sensor privacy is enabled then all apps, including those that are active, should be
|
|
// prevented from recording. This is handled similar to idle UIDs, any app that attempts
|
|
// to record while sensor privacy is enabled will receive buffers with zeros. As soon as
|
|
// sensor privacy is disabled active apps will receive the expected data when recording.
|
|
class SensorPrivacyPolicy : public hardware::BnSensorPrivacyListener {
|
|
public:
|
|
explicit SensorPrivacyPolicy(wp<AudioPolicyService> service)
|
|
: mService(service) {}
|
|
|
|
void registerSelf();
|
|
void registerSelfForMicrophoneOnly(int userId);
|
|
void unregisterSelf();
|
|
|
|
bool isSensorPrivacyEnabled();
|
|
|
|
binder::Status onSensorPrivacyChanged(bool enabled);
|
|
|
|
private:
|
|
wp<AudioPolicyService> mService;
|
|
std::atomic_bool mSensorPrivacyEnabled = false;
|
|
};
|
|
|
|
// Thread used to send audio config commands to audio flinger
|
|
// For audio config commands, it is necessary because audio flinger requires that the calling
|
|
// process (user) has permission to modify audio settings.
|
|
class AudioCommandThread : public Thread {
|
|
class AudioCommand;
|
|
public:
|
|
|
|
// commands for tone AudioCommand
|
|
enum {
|
|
SET_VOLUME,
|
|
SET_PARAMETERS,
|
|
SET_VOICE_VOLUME,
|
|
STOP_OUTPUT,
|
|
RELEASE_OUTPUT,
|
|
CREATE_AUDIO_PATCH,
|
|
RELEASE_AUDIO_PATCH,
|
|
UPDATE_AUDIOPORT_LIST,
|
|
UPDATE_AUDIOPATCH_LIST,
|
|
CHANGED_AUDIOVOLUMEGROUP,
|
|
SET_AUDIOPORT_CONFIG,
|
|
DYN_POLICY_MIX_STATE_UPDATE,
|
|
RECORDING_CONFIGURATION_UPDATE,
|
|
SET_EFFECT_SUSPENDED,
|
|
AUDIO_MODULES_UPDATE,
|
|
ROUTING_UPDATED,
|
|
UPDATE_UID_STATES
|
|
};
|
|
|
|
AudioCommandThread (String8 name, const wp<AudioPolicyService>& service);
|
|
virtual ~AudioCommandThread();
|
|
|
|
status_t dump(int fd);
|
|
|
|
// Thread virtuals
|
|
virtual void onFirstRef();
|
|
virtual bool threadLoop();
|
|
|
|
void exit();
|
|
status_t volumeCommand(audio_stream_type_t stream, float volume,
|
|
audio_io_handle_t output, int delayMs = 0);
|
|
status_t parametersCommand(audio_io_handle_t ioHandle,
|
|
const char *keyValuePairs, int delayMs = 0);
|
|
status_t voiceVolumeCommand(float volume, int delayMs = 0);
|
|
void stopOutputCommand(audio_port_handle_t portId);
|
|
void releaseOutputCommand(audio_port_handle_t portId);
|
|
status_t sendCommand(sp<AudioCommand>& command, int delayMs = 0);
|
|
void insertCommand_l(sp<AudioCommand>& command, int delayMs = 0);
|
|
status_t createAudioPatchCommand(const struct audio_patch *patch,
|
|
audio_patch_handle_t *handle,
|
|
int delayMs);
|
|
status_t releaseAudioPatchCommand(audio_patch_handle_t handle,
|
|
int delayMs);
|
|
void updateAudioPortListCommand();
|
|
void updateAudioPatchListCommand();
|
|
void changeAudioVolumeGroupCommand(volume_group_t group, int flags);
|
|
status_t setAudioPortConfigCommand(const struct audio_port_config *config,
|
|
int delayMs);
|
|
void dynamicPolicyMixStateUpdateCommand(const String8& regId,
|
|
int32_t state);
|
|
void recordingConfigurationUpdateCommand(
|
|
int event,
|
|
const record_client_info_t *clientInfo,
|
|
const audio_config_base_t *clientConfig,
|
|
std::vector<effect_descriptor_t> clientEffects,
|
|
const audio_config_base_t *deviceConfig,
|
|
std::vector<effect_descriptor_t> effects,
|
|
audio_patch_handle_t patchHandle,
|
|
audio_source_t source);
|
|
void setEffectSuspendedCommand(int effectId,
|
|
audio_session_t sessionId,
|
|
bool suspended);
|
|
void audioModulesUpdateCommand();
|
|
void routingChangedCommand();
|
|
void updateUidStatesCommand();
|
|
void insertCommand_l(AudioCommand *command, int delayMs = 0);
|
|
private:
|
|
class AudioCommandData;
|
|
|
|
// descriptor for requested tone playback event
|
|
class AudioCommand: public RefBase {
|
|
|
|
public:
|
|
AudioCommand()
|
|
: mCommand(-1), mStatus(NO_ERROR), mWaitStatus(false) {}
|
|
|
|
void dump(char* buffer, size_t size);
|
|
|
|
int mCommand; // SET_VOLUME, SET_PARAMETERS...
|
|
nsecs_t mTime; // time stamp
|
|
Mutex mLock; // mutex associated to mCond
|
|
Condition mCond; // condition for status return
|
|
status_t mStatus; // command status
|
|
bool mWaitStatus; // true if caller is waiting for status
|
|
sp<AudioCommandData> mParam; // command specific parameter data
|
|
};
|
|
|
|
class AudioCommandData: public RefBase {
|
|
public:
|
|
virtual ~AudioCommandData() {}
|
|
protected:
|
|
AudioCommandData() {}
|
|
};
|
|
|
|
class VolumeData : public AudioCommandData {
|
|
public:
|
|
audio_stream_type_t mStream;
|
|
float mVolume;
|
|
audio_io_handle_t mIO;
|
|
};
|
|
|
|
class ParametersData : public AudioCommandData {
|
|
public:
|
|
audio_io_handle_t mIO;
|
|
String8 mKeyValuePairs;
|
|
};
|
|
|
|
class VoiceVolumeData : public AudioCommandData {
|
|
public:
|
|
float mVolume;
|
|
};
|
|
|
|
class StopOutputData : public AudioCommandData {
|
|
public:
|
|
audio_port_handle_t mPortId;
|
|
};
|
|
|
|
class ReleaseOutputData : public AudioCommandData {
|
|
public:
|
|
audio_port_handle_t mPortId;
|
|
};
|
|
|
|
class CreateAudioPatchData : public AudioCommandData {
|
|
public:
|
|
struct audio_patch mPatch;
|
|
audio_patch_handle_t mHandle;
|
|
};
|
|
|
|
class ReleaseAudioPatchData : public AudioCommandData {
|
|
public:
|
|
audio_patch_handle_t mHandle;
|
|
};
|
|
|
|
class AudioVolumeGroupData : public AudioCommandData {
|
|
public:
|
|
volume_group_t mGroup;
|
|
int mFlags;
|
|
};
|
|
|
|
class SetAudioPortConfigData : public AudioCommandData {
|
|
public:
|
|
struct audio_port_config mConfig;
|
|
};
|
|
|
|
class DynPolicyMixStateUpdateData : public AudioCommandData {
|
|
public:
|
|
String8 mRegId;
|
|
int32_t mState;
|
|
};
|
|
|
|
class RecordingConfigurationUpdateData : public AudioCommandData {
|
|
public:
|
|
int mEvent;
|
|
record_client_info_t mClientInfo;
|
|
struct audio_config_base mClientConfig;
|
|
std::vector<effect_descriptor_t> mClientEffects;
|
|
struct audio_config_base mDeviceConfig;
|
|
std::vector<effect_descriptor_t> mEffects;
|
|
audio_patch_handle_t mPatchHandle;
|
|
audio_source_t mSource;
|
|
};
|
|
|
|
class SetEffectSuspendedData : public AudioCommandData {
|
|
public:
|
|
int mEffectId;
|
|
audio_session_t mSessionId;
|
|
bool mSuspended;
|
|
};
|
|
|
|
Mutex mLock;
|
|
Condition mWaitWorkCV;
|
|
Vector < sp<AudioCommand> > mAudioCommands; // list of pending commands
|
|
sp<AudioCommand> mLastCommand; // last processed command (used by dump)
|
|
String8 mName; // string used by wake lock fo delayed commands
|
|
wp<AudioPolicyService> mService;
|
|
};
|
|
|
|
class AudioPolicyClient : public AudioPolicyClientInterface
|
|
{
|
|
public:
|
|
explicit AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {}
|
|
virtual ~AudioPolicyClient() {}
|
|
|
|
//
|
|
// Audio HW module functions
|
|
//
|
|
|
|
// loads a HW module.
|
|
virtual audio_module_handle_t loadHwModule(const char *name);
|
|
|
|
//
|
|
// Audio output Control functions
|
|
//
|
|
|
|
// opens an audio output with the requested parameters. The parameter values can indicate to use the default values
|
|
// in case the audio policy manager has no specific requirements for the output being opened.
|
|
// When the function returns, the parameter values reflect the actual values used by the audio hardware output stream.
|
|
// The audio policy manager can check if the proposed parameters are suitable or not and act accordingly.
|
|
virtual status_t openOutput(audio_module_handle_t module,
|
|
audio_io_handle_t *output,
|
|
audio_config_t *config,
|
|
const sp<DeviceDescriptorBase>& device,
|
|
uint32_t *latencyMs,
|
|
audio_output_flags_t flags);
|
|
// creates a special output that is duplicated to the two outputs passed as arguments. The duplication is performed by
|
|
// a special mixer thread in the AudioFlinger.
|
|
virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2);
|
|
// closes the output stream
|
|
virtual status_t closeOutput(audio_io_handle_t output);
|
|
// suspends the output. When an output is suspended, the corresponding audio hardware output stream is placed in
|
|
// standby and the AudioTracks attached to the mixer thread are still processed but the output mix is discarded.
|
|
virtual status_t suspendOutput(audio_io_handle_t output);
|
|
// restores a suspended output.
|
|
virtual status_t restoreOutput(audio_io_handle_t output);
|
|
|
|
//
|
|
// Audio input Control functions
|
|
//
|
|
|
|
// opens an audio input
|
|
virtual audio_io_handle_t openInput(audio_module_handle_t module,
|
|
audio_io_handle_t *input,
|
|
audio_config_t *config,
|
|
audio_devices_t *devices,
|
|
const String8& address,
|
|
audio_source_t source,
|
|
audio_input_flags_t flags);
|
|
// closes an audio input
|
|
virtual status_t closeInput(audio_io_handle_t input);
|
|
//
|
|
// misc control functions
|
|
//
|
|
|
|
// set a stream volume for a particular output. For the same user setting, a given stream type can have different volumes
|
|
// for each output (destination device) it is attached to.
|
|
virtual status_t setStreamVolume(audio_stream_type_t stream, float volume, audio_io_handle_t output, int delayMs = 0);
|
|
|
|
// invalidate a stream type, causing a reroute to an unspecified new output
|
|
virtual status_t invalidateStream(audio_stream_type_t stream);
|
|
|
|
// function enabling to send proprietary informations directly from audio policy manager to audio hardware interface.
|
|
virtual void setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, int delayMs = 0);
|
|
// function enabling to receive proprietary informations directly from audio hardware interface to audio policy manager.
|
|
virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys);
|
|
|
|
// set down link audio volume.
|
|
virtual status_t setVoiceVolume(float volume, int delayMs = 0);
|
|
|
|
// move effect to the specified output
|
|
virtual status_t moveEffects(audio_session_t session,
|
|
audio_io_handle_t srcOutput,
|
|
audio_io_handle_t dstOutput);
|
|
|
|
void setEffectSuspended(int effectId,
|
|
audio_session_t sessionId,
|
|
bool suspended) override;
|
|
|
|
/* Create a patch between several source and sink ports */
|
|
virtual status_t createAudioPatch(const struct audio_patch *patch,
|
|
audio_patch_handle_t *handle,
|
|
int delayMs);
|
|
|
|
/* Release a patch */
|
|
virtual status_t releaseAudioPatch(audio_patch_handle_t handle,
|
|
int delayMs);
|
|
|
|
/* Set audio port configuration */
|
|
virtual status_t setAudioPortConfig(const struct audio_port_config *config, int delayMs);
|
|
|
|
virtual void onAudioPortListUpdate();
|
|
virtual void onAudioPatchListUpdate();
|
|
virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
|
|
virtual void onRecordingConfigurationUpdate(int event,
|
|
const record_client_info_t *clientInfo,
|
|
const audio_config_base_t *clientConfig,
|
|
std::vector<effect_descriptor_t> clientEffects,
|
|
const audio_config_base_t *deviceConfig,
|
|
std::vector<effect_descriptor_t> effects,
|
|
audio_patch_handle_t patchHandle,
|
|
audio_source_t source);
|
|
|
|
virtual void onAudioVolumeGroupChanged(volume_group_t group, int flags);
|
|
|
|
virtual void onRoutingUpdated();
|
|
|
|
virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
|
|
|
|
void setSoundTriggerCaptureState(bool active) override;
|
|
|
|
status_t getAudioPort(struct audio_port_v7 *port) override;
|
|
|
|
status_t updateSecondaryOutputs(
|
|
const TrackSecondaryOutputsMap& trackSecondaryOutputs) override;
|
|
|
|
private:
|
|
AudioPolicyService *mAudioPolicyService;
|
|
};
|
|
|
|
// --- Notification Client ---
|
|
class NotificationClient : public IBinder::DeathRecipient {
|
|
public:
|
|
NotificationClient(const sp<AudioPolicyService>& service,
|
|
const sp<media::IAudioPolicyServiceClient>& client,
|
|
uid_t uid, pid_t pid);
|
|
virtual ~NotificationClient();
|
|
|
|
void onAudioPortListUpdate();
|
|
void onAudioPatchListUpdate();
|
|
void onDynamicPolicyMixStateUpdate(const String8& regId,
|
|
int32_t state);
|
|
void onAudioVolumeGroupChanged(volume_group_t group, int flags);
|
|
void onRecordingConfigurationUpdate(
|
|
int event,
|
|
const record_client_info_t *clientInfo,
|
|
const audio_config_base_t *clientConfig,
|
|
std::vector<effect_descriptor_t> clientEffects,
|
|
const audio_config_base_t *deviceConfig,
|
|
std::vector<effect_descriptor_t> effects,
|
|
audio_patch_handle_t patchHandle,
|
|
audio_source_t source);
|
|
void onRoutingUpdated();
|
|
void setAudioPortCallbacksEnabled(bool enabled);
|
|
void setAudioVolumeGroupCallbacksEnabled(bool enabled);
|
|
|
|
uid_t uid() {
|
|
return mUid;
|
|
}
|
|
|
|
// IBinder::DeathRecipient
|
|
virtual void binderDied(const wp<IBinder>& who);
|
|
|
|
private:
|
|
NotificationClient(const NotificationClient&);
|
|
NotificationClient& operator = (const NotificationClient&);
|
|
|
|
const wp<AudioPolicyService> mService;
|
|
const uid_t mUid;
|
|
const pid_t mPid;
|
|
const sp<media::IAudioPolicyServiceClient> mAudioPolicyServiceClient;
|
|
bool mAudioPortCallbacksEnabled;
|
|
bool mAudioVolumeGroupCallbacksEnabled;
|
|
};
|
|
|
|
class AudioClient : public virtual RefBase {
|
|
public:
|
|
AudioClient(const audio_attributes_t attributes,
|
|
const audio_io_handle_t io,
|
|
const AttributionSourceState& attributionSource,
|
|
const audio_session_t session, audio_port_handle_t portId,
|
|
const audio_port_handle_t deviceId) :
|
|
attributes(attributes), io(io), attributionSource(
|
|
attributionSource), session(session), portId(portId),
|
|
deviceId(deviceId), active(false) {}
|
|
~AudioClient() override = default;
|
|
|
|
|
|
const audio_attributes_t attributes; // source, flags ...
|
|
const audio_io_handle_t io; // audio HAL stream IO handle
|
|
const AttributionSourceState& attributionSource; //client attributionsource
|
|
const audio_session_t session; // audio session ID
|
|
const audio_port_handle_t portId;
|
|
const audio_port_handle_t deviceId; // selected input device port ID
|
|
bool active; // Playback/Capture is active or inactive
|
|
};
|
|
|
|
// Checks and monitors app ops for AudioRecordClient
|
|
class OpRecordAudioMonitor : public RefBase {
|
|
public:
|
|
~OpRecordAudioMonitor() override;
|
|
bool hasOp() const;
|
|
int32_t getOp() const { return mAppOp; }
|
|
|
|
static sp<OpRecordAudioMonitor> createIfNeeded(
|
|
const AttributionSourceState& attributionSource,
|
|
const audio_attributes_t& attr, wp<AudioCommandThread> commandThread);
|
|
|
|
private:
|
|
OpRecordAudioMonitor(const AttributionSourceState& attributionSource, int32_t appOp,
|
|
wp<AudioCommandThread> commandThread);
|
|
|
|
void onFirstRef() override;
|
|
|
|
AppOpsManager mAppOpsManager;
|
|
|
|
class RecordAudioOpCallback : public BnAppOpsCallback {
|
|
public:
|
|
explicit RecordAudioOpCallback(const wp<OpRecordAudioMonitor>& monitor);
|
|
void opChanged(int32_t op, const String16& packageName) override;
|
|
|
|
private:
|
|
const wp<OpRecordAudioMonitor> mMonitor;
|
|
};
|
|
|
|
sp<RecordAudioOpCallback> mOpCallback;
|
|
// called by RecordAudioOpCallback when the app op for this OpRecordAudioMonitor is updated
|
|
// in AppOp callback and in onFirstRef()
|
|
// updateUidStates is true when the silenced state of active AudioRecordClients must be
|
|
// re-evaluated
|
|
void checkOp(bool updateUidStates = false);
|
|
|
|
std::atomic_bool mHasOp;
|
|
const AttributionSourceState mAttributionSource;
|
|
const int32_t mAppOp;
|
|
wp<AudioCommandThread> mCommandThread;
|
|
};
|
|
|
|
// --- AudioRecordClient ---
|
|
// Information about each registered AudioRecord client
|
|
// (between calls to getInputForAttr() and releaseInput())
|
|
class AudioRecordClient : public AudioClient {
|
|
public:
|
|
AudioRecordClient(const audio_attributes_t attributes,
|
|
const audio_io_handle_t io,
|
|
const audio_session_t session, audio_port_handle_t portId,
|
|
const audio_port_handle_t deviceId,
|
|
const AttributionSourceState& attributionSource,
|
|
bool canCaptureOutput, bool canCaptureHotword,
|
|
wp<AudioCommandThread> commandThread) :
|
|
AudioClient(attributes, io, attributionSource,
|
|
session, portId, deviceId), attributionSource(attributionSource),
|
|
startTimeNs(0), canCaptureOutput(canCaptureOutput),
|
|
canCaptureHotword(canCaptureHotword), silenced(false),
|
|
mOpRecordAudioMonitor(
|
|
OpRecordAudioMonitor::createIfNeeded(attributionSource,
|
|
attributes, commandThread)) {}
|
|
~AudioRecordClient() override = default;
|
|
|
|
bool hasOp() const {
|
|
return mOpRecordAudioMonitor ? mOpRecordAudioMonitor->hasOp() : true;
|
|
}
|
|
|
|
const AttributionSourceState attributionSource; // attribution source of client
|
|
nsecs_t startTimeNs;
|
|
const bool canCaptureOutput;
|
|
const bool canCaptureHotword;
|
|
bool silenced;
|
|
|
|
private:
|
|
sp<OpRecordAudioMonitor> mOpRecordAudioMonitor;
|
|
};
|
|
|
|
|
|
// --- AudioPlaybackClient ---
|
|
// Information about each registered AudioTrack client
|
|
// (between calls to getOutputForAttr() and releaseOutput())
|
|
class AudioPlaybackClient : public AudioClient {
|
|
public:
|
|
AudioPlaybackClient(const audio_attributes_t attributes,
|
|
const audio_io_handle_t io, AttributionSourceState attributionSource,
|
|
const audio_session_t session, audio_port_handle_t portId,
|
|
audio_port_handle_t deviceId, audio_stream_type_t stream) :
|
|
AudioClient(attributes, io, attributionSource, session, portId,
|
|
deviceId), stream(stream) {}
|
|
~AudioPlaybackClient() override = default;
|
|
|
|
const audio_stream_type_t stream;
|
|
};
|
|
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void getPlaybackClientAndEffects(audio_port_handle_t portId,
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sp<AudioPlaybackClient>& client,
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sp<AudioPolicyEffects>& effects,
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const char *context);
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// A class automatically clearing and restoring binder caller identity inside
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// a code block (scoped variable)
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// Declare one systematically before calling AudioPolicyManager methods so that they are
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// executed with the same level of privilege as audioserver process.
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class AutoCallerClear {
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public:
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AutoCallerClear() :
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mToken(IPCThreadState::self()->clearCallingIdentity()) {}
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~AutoCallerClear() {
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IPCThreadState::self()->restoreCallingIdentity(mToken);
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}
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private:
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const int64_t mToken;
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};
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// Internal dump utilities.
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status_t dumpPermissionDenial(int fd);
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void loadAudioPolicyManager();
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void unloadAudioPolicyManager();
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mutable Mutex mLock; // prevents concurrent access to AudioPolicy manager functions changing
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// device connection state or routing
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// Note: lock acquisition order is always mLock > mEffectsLock:
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// mLock protects AudioPolicyManager methods that can call into audio flinger
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// and possibly back in to audio policy service and acquire mEffectsLock.
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sp<AudioCommandThread> mAudioCommandThread; // audio commands thread
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sp<AudioCommandThread> mOutputCommandThread; // process stop and release output
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AudioPolicyInterface *mAudioPolicyManager;
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AudioPolicyClient *mAudioPolicyClient;
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std::vector<audio_usage_t> mSupportedSystemUsages;
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Mutex mNotificationClientsLock;
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DefaultKeyedVector<int64_t, sp<NotificationClient>> mNotificationClients
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GUARDED_BY(mNotificationClientsLock);
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// Manage all effects configured in audio_effects.conf
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// never hold AudioPolicyService::mLock when calling AudioPolicyEffects methods as
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// those can call back into AudioPolicyService methods and try to acquire the mutex
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sp<AudioPolicyEffects> mAudioPolicyEffects GUARDED_BY(mLock);
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audio_mode_t mPhoneState GUARDED_BY(mLock);
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uid_t mPhoneStateOwnerUid GUARDED_BY(mLock);
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sp<UidPolicy> mUidPolicy GUARDED_BY(mLock);
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sp<SensorPrivacyPolicy> mSensorPrivacyPolicy GUARDED_BY(mLock);
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DefaultKeyedVector<audio_port_handle_t, sp<AudioRecordClient>> mAudioRecordClients
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GUARDED_BY(mLock);
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DefaultKeyedVector<audio_port_handle_t, sp<AudioPlaybackClient>> mAudioPlaybackClients
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GUARDED_BY(mLock);
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MediaPackageManager mPackageManager; // To check allowPlaybackCapture
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CaptureStateNotifier mCaptureStateNotifier;
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void *mLibraryHandle = nullptr;
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CreateAudioPolicyManagerInstance mCreateAudioPolicyManager;
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DestroyAudioPolicyManagerInstance mDestroyAudioPolicyManager;
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};
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} // namespace android
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#endif // ANDROID_AUDIOPOLICYSERVICE_H
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