| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <cutils/config_utils.h> |
| #include <cutils/misc.h> |
| #include <utils/Timers.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/SortedVector.h> |
| #include <media/AudioParameter.h> |
| #include <media/AudioPolicy.h> |
| #include "AudioPolicyInterface.h" |
| |
| #include <AudioPolicyManagerInterface.h> |
| #include <AudioPolicyManagerObserver.h> |
| #include <AudioGain.h> |
| #include <AudioPort.h> |
| #include <AudioPatch.h> |
| #include <DeviceDescriptor.h> |
| #include <IOProfile.h> |
| #include <HwModule.h> |
| #include <AudioInputDescriptor.h> |
| #include <AudioOutputDescriptor.h> |
| #include <AudioPolicyMix.h> |
| #include <EffectDescriptor.h> |
| #include <SoundTriggerSession.h> |
| #include <SessionRoute.h> |
| #include <VolumeCurve.h> |
| |
| namespace android { |
| |
| // ---------------------------------------------------------------------------- |
| |
| // Attenuation applied to STRATEGY_SONIFICATION streams when a headset is connected: 6dB |
| #define SONIFICATION_HEADSET_VOLUME_FACTOR_DB (-6) |
| // Min volume for STRATEGY_SONIFICATION streams when limited by music volume: -36dB |
| #define SONIFICATION_HEADSET_VOLUME_MIN_DB (-36) |
| // Max volume difference on A2DP between playing media and STRATEGY_SONIFICATION streams: 12dB |
| #define SONIFICATION_A2DP_MAX_MEDIA_DIFF_DB (12) |
| |
| // Time in milliseconds during which we consider that music is still active after a music |
| // track was stopped - see computeVolume() |
| #define SONIFICATION_HEADSET_MUSIC_DELAY 5000 |
| |
| // Time in milliseconds during witch some streams are muted while the audio path |
| // is switched |
| #define MUTE_TIME_MS 2000 |
| |
| #define NUM_TEST_OUTPUTS 5 |
| |
| #define NUM_VOL_CURVE_KNEES 2 |
| |
| // Default minimum length allowed for offloading a compressed track |
| // Can be overridden by the audio.offload.min.duration.secs property |
| #define OFFLOAD_DEFAULT_MIN_DURATION_SECS 60 |
| |
| // ---------------------------------------------------------------------------- |
| // AudioPolicyManager implements audio policy manager behavior common to all platforms. |
| // ---------------------------------------------------------------------------- |
| |
| class AudioPolicyManager : public AudioPolicyInterface, public AudioPolicyManagerObserver |
| |
| #ifdef AUDIO_POLICY_TEST |
| , public Thread |
| #endif //AUDIO_POLICY_TEST |
| { |
| |
| public: |
| AudioPolicyManager(AudioPolicyClientInterface *clientInterface); |
| virtual ~AudioPolicyManager(); |
| |
| // AudioPolicyInterface |
| virtual status_t setDeviceConnectionState(audio_devices_t device, |
| audio_policy_dev_state_t state, |
| const char *device_address, |
| const char *device_name); |
| virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, |
| const char *device_address); |
| virtual void setPhoneState(audio_mode_t state); |
| virtual void setForceUse(audio_policy_force_use_t usage, |
| audio_policy_forced_cfg_t config); |
| virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); |
| |
| virtual void setSystemProperty(const char* property, const char* value); |
| virtual status_t initCheck(); |
| virtual audio_io_handle_t getOutput(audio_stream_type_t stream, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_output_flags_t flags, |
| const audio_offload_info_t *offloadInfo); |
| virtual status_t getOutputForAttr(const audio_attributes_t *attr, |
| audio_io_handle_t *output, |
| audio_session_t session, |
| audio_stream_type_t *stream, |
| uid_t uid, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_output_flags_t flags, |
| audio_port_handle_t selectedDeviceId, |
| const audio_offload_info_t *offloadInfo); |
| virtual status_t startOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| audio_session_t session); |
| virtual status_t stopOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| audio_session_t session); |
| virtual void releaseOutput(audio_io_handle_t output, |
| audio_stream_type_t stream, |
| audio_session_t session); |
| virtual status_t getInputForAttr(const audio_attributes_t *attr, |
| audio_io_handle_t *input, |
| audio_session_t session, |
| uid_t uid, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_input_flags_t flags, |
| audio_port_handle_t selectedDeviceId, |
| input_type_t *inputType); |
| |
| // indicates to the audio policy manager that the input starts being used. |
| virtual status_t startInput(audio_io_handle_t input, |
| audio_session_t session); |
| |
| // indicates to the audio policy manager that the input stops being used. |
| virtual status_t stopInput(audio_io_handle_t input, |
| audio_session_t session); |
| virtual void releaseInput(audio_io_handle_t input, |
| audio_session_t session); |
| virtual void closeAllInputs(); |
| virtual void initStreamVolume(audio_stream_type_t stream, |
| int indexMin, |
| int indexMax); |
| virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, |
| int index, |
| audio_devices_t device); |
| virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, |
| int *index, |
| audio_devices_t device); |
| |
| // return the strategy corresponding to a given stream type |
| virtual uint32_t getStrategyForStream(audio_stream_type_t stream); |
| // return the strategy corresponding to the given audio attributes |
| virtual uint32_t getStrategyForAttr(const audio_attributes_t *attr); |
| |
| // return the enabled output devices for the given stream type |
| virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream); |
| |
| virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc = NULL); |
| virtual status_t registerEffect(const effect_descriptor_t *desc, |
| audio_io_handle_t io, |
| uint32_t strategy, |
| int session, |
| int id); |
| virtual status_t unregisterEffect(int id) |
| { |
| return mEffects.unregisterEffect(id); |
| } |
| virtual status_t setEffectEnabled(int id, bool enabled) |
| { |
| return mEffects.setEffectEnabled(id, enabled); |
| } |
| |
| virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const; |
| // return whether a stream is playing remotely, override to change the definition of |
| // local/remote playback, used for instance by notification manager to not make |
| // media players lose audio focus when not playing locally |
| // For the base implementation, "remotely" means playing during screen mirroring which |
| // uses an output for playback with a non-empty, non "0" address. |
| virtual bool isStreamActiveRemotely(audio_stream_type_t stream, |
| uint32_t inPastMs = 0) const; |
| |
| virtual bool isSourceActive(audio_source_t source) const; |
| |
| virtual status_t dump(int fd); |
| |
| virtual bool isOffloadSupported(const audio_offload_info_t& offloadInfo); |
| |
| virtual status_t listAudioPorts(audio_port_role_t role, |
| audio_port_type_t type, |
| unsigned int *num_ports, |
| struct audio_port *ports, |
| unsigned int *generation); |
| virtual status_t getAudioPort(struct audio_port *port); |
| virtual status_t createAudioPatch(const struct audio_patch *patch, |
| audio_patch_handle_t *handle, |
| uid_t uid); |
| virtual status_t releaseAudioPatch(audio_patch_handle_t handle, |
| uid_t uid); |
| virtual status_t listAudioPatches(unsigned int *num_patches, |
| struct audio_patch *patches, |
| unsigned int *generation); |
| virtual status_t setAudioPortConfig(const struct audio_port_config *config); |
| |
| virtual void releaseResourcesForUid(uid_t uid); |
| |
| virtual status_t acquireSoundTriggerSession(audio_session_t *session, |
| audio_io_handle_t *ioHandle, |
| audio_devices_t *device); |
| |
| virtual status_t releaseSoundTriggerSession(audio_session_t session) |
| { |
| return mSoundTriggerSessions.releaseSession(session); |
| } |
| |
| virtual status_t registerPolicyMixes(Vector<AudioMix> mixes); |
| virtual status_t unregisterPolicyMixes(Vector<AudioMix> mixes); |
| |
| virtual status_t startAudioSource(const struct audio_port_config *source, |
| const audio_attributes_t *attributes, |
| audio_io_handle_t *handle, |
| uid_t uid); |
| virtual status_t stopAudioSource(audio_io_handle_t handle); |
| |
| virtual status_t setMasterMono(bool mono); |
| virtual status_t getMasterMono(bool *mono); |
| |
| // return the strategy corresponding to a given stream type |
| routing_strategy getStrategy(audio_stream_type_t stream) const; |
| |
| protected: |
| // From AudioPolicyManagerObserver |
| virtual const AudioPatchCollection &getAudioPatches() const |
| { |
| return mAudioPatches; |
| } |
| virtual const SoundTriggerSessionCollection &getSoundTriggerSessionCollection() const |
| { |
| return mSoundTriggerSessions; |
| } |
| virtual const AudioPolicyMixCollection &getAudioPolicyMixCollection() const |
| { |
| return mPolicyMixes; |
| } |
| virtual const SwAudioOutputCollection &getOutputs() const |
| { |
| return mOutputs; |
| } |
| virtual const AudioInputCollection &getInputs() const |
| { |
| return mInputs; |
| } |
| virtual const DeviceVector &getAvailableOutputDevices() const |
| { |
| return mAvailableOutputDevices; |
| } |
| virtual const DeviceVector &getAvailableInputDevices() const |
| { |
| return mAvailableInputDevices; |
| } |
| virtual IVolumeCurvesCollection &getVolumeCurves() { return *mVolumeCurves; } |
| virtual const sp<DeviceDescriptor> &getDefaultOutputDevice() const |
| { |
| return mDefaultOutputDevice; |
| } |
| protected: |
| void addOutput(audio_io_handle_t output, sp<SwAudioOutputDescriptor> outputDesc); |
| void removeOutput(audio_io_handle_t output); |
| void addInput(audio_io_handle_t input, sp<AudioInputDescriptor> inputDesc); |
| |
| // return appropriate device for streams handled by the specified strategy according to current |
| // phone state, connected devices... |
| // if fromCache is true, the device is returned from mDeviceForStrategy[], |
| // otherwise it is determine by current state |
| // (device connected,phone state, force use, a2dp output...) |
| // This allows to: |
| // 1 speed up process when the state is stable (when starting or stopping an output) |
| // 2 access to either current device selection (fromCache == true) or |
| // "future" device selection (fromCache == false) when called from a context |
| // where conditions are changing (setDeviceConnectionState(), setPhoneState()...) AND |
| // before updateDevicesAndOutputs() is called. |
| virtual audio_devices_t getDeviceForStrategy(routing_strategy strategy, |
| bool fromCache); |
| |
| bool isStrategyActive(const sp<AudioOutputDescriptor> outputDesc, routing_strategy strategy, |
| uint32_t inPastMs = 0, nsecs_t sysTime = 0) const; |
| |
| // change the route of the specified output. Returns the number of ms we have slept to |
| // allow new routing to take effect in certain cases. |
| virtual uint32_t setOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, |
| audio_devices_t device, |
| bool force = false, |
| int delayMs = 0, |
| audio_patch_handle_t *patchHandle = NULL, |
| const char* address = NULL); |
| status_t resetOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, |
| int delayMs = 0, |
| audio_patch_handle_t *patchHandle = NULL); |
| status_t setInputDevice(audio_io_handle_t input, |
| audio_devices_t device, |
| bool force = false, |
| audio_patch_handle_t *patchHandle = NULL); |
| status_t resetInputDevice(audio_io_handle_t input, |
| audio_patch_handle_t *patchHandle = NULL); |
| |
| // select input device corresponding to requested audio source |
| virtual audio_devices_t getDeviceForInputSource(audio_source_t inputSource); |
| |
| // compute the actual volume for a given stream according to the requested index and a particular |
| // device |
| virtual float computeVolume(audio_stream_type_t stream, |
| int index, |
| audio_devices_t device); |
| |
| // check that volume change is permitted, compute and send new volume to audio hardware |
| virtual status_t checkAndSetVolume(audio_stream_type_t stream, int index, |
| const sp<AudioOutputDescriptor>& outputDesc, |
| audio_devices_t device, |
| int delayMs = 0, bool force = false); |
| |
| // apply all stream volumes to the specified output and device |
| void applyStreamVolumes(const sp<AudioOutputDescriptor>& outputDesc, |
| audio_devices_t device, int delayMs = 0, bool force = false); |
| |
| // Mute or unmute all streams handled by the specified strategy on the specified output |
| void setStrategyMute(routing_strategy strategy, |
| bool on, |
| const sp<AudioOutputDescriptor>& outputDesc, |
| int delayMs = 0, |
| audio_devices_t device = (audio_devices_t)0); |
| |
| // Mute or unmute the stream on the specified output |
| void setStreamMute(audio_stream_type_t stream, |
| bool on, |
| const sp<AudioOutputDescriptor>& outputDesc, |
| int delayMs = 0, |
| audio_devices_t device = (audio_devices_t)0); |
| |
| // handle special cases for sonification strategy while in call: mute streams or replace by |
| // a special tone in the device used for communication |
| void handleIncallSonification(audio_stream_type_t stream, bool starting, bool stateChange); |
| |
| audio_mode_t getPhoneState(); |
| |
| // true if device is in a telephony or VoIP call |
| virtual bool isInCall(); |
| // true if given state represents a device in a telephony or VoIP call |
| virtual bool isStateInCall(int state); |
| |
| // when a device is connected, checks if an open output can be routed |
| // to this device. If none is open, tries to open one of the available outputs. |
| // Returns an output suitable to this device or 0. |
| // when a device is disconnected, checks if an output is not used any more and |
| // returns its handle if any. |
| // transfers the audio tracks and effects from one output thread to another accordingly. |
| status_t checkOutputsForDevice(const sp<DeviceDescriptor> devDesc, |
| audio_policy_dev_state_t state, |
| SortedVector<audio_io_handle_t>& outputs, |
| const String8 address); |
| |
| status_t checkInputsForDevice(const sp<DeviceDescriptor> devDesc, |
| audio_policy_dev_state_t state, |
| SortedVector<audio_io_handle_t>& inputs, |
| const String8 address); |
| |
| // close an output and its companion duplicating output. |
| void closeOutput(audio_io_handle_t output); |
| |
| // close an input. |
| void closeInput(audio_io_handle_t input); |
| |
| // checks and if necessary changes outputs used for all strategies. |
| // must be called every time a condition that affects the output choice for a given strategy |
| // changes: connected device, phone state, force use... |
| // Must be called before updateDevicesAndOutputs() |
| void checkOutputForStrategy(routing_strategy strategy); |
| |
| // Same as checkOutputForStrategy() but for a all strategies in order of priority |
| void checkOutputForAllStrategies(); |
| |
| // manages A2DP output suspend/restore according to phone state and BT SCO usage |
| void checkA2dpSuspend(); |
| |
| // selects the most appropriate device on output for current state |
| // must be called every time a condition that affects the device choice for a given output is |
| // changed: connected device, phone state, force use, output start, output stop.. |
| // see getDeviceForStrategy() for the use of fromCache parameter |
| audio_devices_t getNewOutputDevice(const sp<AudioOutputDescriptor>& outputDesc, |
| bool fromCache); |
| |
| // updates cache of device used by all strategies (mDeviceForStrategy[]) |
| // must be called every time a condition that affects the device choice for a given strategy is |
| // changed: connected device, phone state, force use... |
| // cached values are used by getDeviceForStrategy() if parameter fromCache is true. |
| // Must be called after checkOutputForAllStrategies() |
| void updateDevicesAndOutputs(); |
| |
| // selects the most appropriate device on input for current state |
| audio_devices_t getNewInputDevice(audio_io_handle_t input); |
| |
| virtual uint32_t getMaxEffectsCpuLoad() |
| { |
| return mEffects.getMaxEffectsCpuLoad(); |
| } |
| |
| virtual uint32_t getMaxEffectsMemory() |
| { |
| return mEffects.getMaxEffectsMemory(); |
| } |
| #ifdef AUDIO_POLICY_TEST |
| virtual bool threadLoop(); |
| void exit(); |
| int testOutputIndex(audio_io_handle_t output); |
| #endif //AUDIO_POLICY_TEST |
| |
| SortedVector<audio_io_handle_t> getOutputsForDevice(audio_devices_t device, |
| SwAudioOutputCollection openOutputs); |
| bool vectorsEqual(SortedVector<audio_io_handle_t>& outputs1, |
| SortedVector<audio_io_handle_t>& outputs2); |
| |
| // mute/unmute strategies using an incompatible device combination |
| // if muting, wait for the audio in pcm buffer to be drained before proceeding |
| // if unmuting, unmute only after the specified delay |
| // Returns the number of ms waited |
| virtual uint32_t checkDeviceMuteStrategies(sp<AudioOutputDescriptor> outputDesc, |
| audio_devices_t prevDevice, |
| uint32_t delayMs); |
| |
| audio_io_handle_t selectOutput(const SortedVector<audio_io_handle_t>& outputs, |
| audio_output_flags_t flags, |
| audio_format_t format); |
| // samplingRate, format, channelMask are in/out and so may be modified |
| sp<IOProfile> getInputProfile(audio_devices_t device, |
| String8 address, |
| uint32_t& samplingRate, |
| audio_format_t& format, |
| audio_channel_mask_t& channelMask, |
| audio_input_flags_t flags); |
| sp<IOProfile> getProfileForDirectOutput(audio_devices_t device, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_output_flags_t flags); |
| |
| audio_io_handle_t selectOutputForEffects(const SortedVector<audio_io_handle_t>& outputs); |
| |
| virtual status_t addAudioPatch(audio_patch_handle_t handle, const sp<AudioPatch>& patch) |
| { |
| return mAudioPatches.addAudioPatch(handle, patch); |
| } |
| virtual status_t removeAudioPatch(audio_patch_handle_t handle) |
| { |
| return mAudioPatches.removeAudioPatch(handle); |
| } |
| |
| audio_devices_t availablePrimaryOutputDevices() const |
| { |
| if (!hasPrimaryOutput()) { |
| return AUDIO_DEVICE_NONE; |
| } |
| return mPrimaryOutput->supportedDevices() & mAvailableOutputDevices.types(); |
| } |
| audio_devices_t availablePrimaryInputDevices() const |
| { |
| if (!hasPrimaryOutput()) { |
| return AUDIO_DEVICE_NONE; |
| } |
| return mAvailableInputDevices.getDevicesFromHwModule(mPrimaryOutput->getModuleHandle()); |
| } |
| |
| uint32_t updateCallRouting(audio_devices_t rxDevice, uint32_t delayMs = 0); |
| |
| // if argument "device" is different from AUDIO_DEVICE_NONE, startSource() will force |
| // the re-evaluation of the output device. |
| status_t startSource(sp<AudioOutputDescriptor> outputDesc, |
| audio_stream_type_t stream, |
| audio_devices_t device, |
| const char *address, |
| uint32_t *delayMs); |
| status_t stopSource(sp<AudioOutputDescriptor> outputDesc, |
| audio_stream_type_t stream, |
| bool forceDeviceUpdate); |
| |
| void clearAudioPatches(uid_t uid); |
| void clearSessionRoutes(uid_t uid); |
| void checkStrategyRoute(routing_strategy strategy, audio_io_handle_t ouptutToSkip); |
| |
| status_t hasPrimaryOutput() const { return mPrimaryOutput != 0; } |
| |
| status_t connectAudioSource(const sp<AudioSourceDescriptor>& sourceDesc); |
| status_t disconnectAudioSource(const sp<AudioSourceDescriptor>& sourceDesc); |
| |
| sp<AudioSourceDescriptor> getSourceForStrategyOnOutput(audio_io_handle_t output, |
| routing_strategy strategy); |
| |
| void cleanUpForDevice(const sp<DeviceDescriptor>& deviceDesc); |
| |
| void clearAudioSources(uid_t uid); |
| |
| |
| static bool streamsMatchForvolume(audio_stream_type_t stream1, |
| audio_stream_type_t stream2); |
| |
| uid_t mUidCached; |
| AudioPolicyClientInterface *mpClientInterface; // audio policy client interface |
| sp<SwAudioOutputDescriptor> mPrimaryOutput; // primary output descriptor |
| // list of descriptors for outputs currently opened |
| |
| SwAudioOutputCollection mOutputs; |
| // copy of mOutputs before setDeviceConnectionState() opens new outputs |
| // reset to mOutputs when updateDevicesAndOutputs() is called. |
| SwAudioOutputCollection mPreviousOutputs; |
| AudioInputCollection mInputs; // list of input descriptors |
| |
| DeviceVector mAvailableOutputDevices; // all available output devices |
| DeviceVector mAvailableInputDevices; // all available input devices |
| |
| SessionRouteMap mOutputRoutes = SessionRouteMap(SessionRouteMap::MAPTYPE_OUTPUT); |
| SessionRouteMap mInputRoutes = SessionRouteMap(SessionRouteMap::MAPTYPE_INPUT); |
| |
| IVolumeCurvesCollection *mVolumeCurves; // Volume Curves per use case and device category |
| |
| bool mLimitRingtoneVolume; // limit ringtone volume to music volume if headset connected |
| audio_devices_t mDeviceForStrategy[NUM_STRATEGIES]; |
| float mLastVoiceVolume; // last voice volume value sent to audio HAL |
| |
| EffectDescriptorCollection mEffects; // list of registered audio effects |
| bool mA2dpSuspended; // true if A2DP output is suspended |
| sp<DeviceDescriptor> mDefaultOutputDevice; // output device selected by default at boot time |
| HwModuleCollection mHwModules; |
| |
| volatile int32_t mAudioPortGeneration; |
| |
| AudioPatchCollection mAudioPatches; |
| |
| SoundTriggerSessionCollection mSoundTriggerSessions; |
| |
| sp<AudioPatch> mCallTxPatch; |
| sp<AudioPatch> mCallRxPatch; |
| |
| HwAudioOutputCollection mHwOutputs; |
| AudioSourceCollection mAudioSources; |
| |
| // for supporting "beacon" streams, i.e. streams that only play on speaker, and never |
| // when something other than STREAM_TTS (a.k.a. "Transmitted Through Speaker") is playing |
| enum { |
| STARTING_OUTPUT, |
| STARTING_BEACON, |
| STOPPING_OUTPUT, |
| STOPPING_BEACON |
| }; |
| uint32_t mBeaconMuteRefCount; // ref count for stream that would mute beacon |
| uint32_t mBeaconPlayingRefCount;// ref count for the playing beacon streams |
| bool mBeaconMuted; // has STREAM_TTS been muted |
| bool mTtsOutputAvailable; // true if a dedicated output for TTS stream is available |
| |
| bool mMasterMono; // true if we wish to force all outputs to mono |
| AudioPolicyMixCollection mPolicyMixes; // list of registered mixes |
| |
| #ifdef AUDIO_POLICY_TEST |
| Mutex mLock; |
| Condition mWaitWorkCV; |
| |
| int mCurOutput; |
| bool mDirectOutput; |
| audio_io_handle_t mTestOutputs[NUM_TEST_OUTPUTS]; |
| int mTestInput; |
| uint32_t mTestDevice; |
| uint32_t mTestSamplingRate; |
| uint32_t mTestFormat; |
| uint32_t mTestChannels; |
| uint32_t mTestLatencyMs; |
| #endif //AUDIO_POLICY_TEST |
| |
| uint32_t nextAudioPortGeneration(); |
| |
| // Audio Policy Engine Interface. |
| AudioPolicyManagerInterface *mEngine; |
| private: |
| // Add or remove AC3 DTS encodings based on user preferences. |
| void filterSurroundFormats(FormatVector *formatsPtr); |
| void filterSurroundChannelMasks(ChannelsVector *channelMasksPtr); |
| |
| // If any, resolve any "dynamic" fields of an Audio Profiles collection |
| void updateAudioProfiles(audio_devices_t device, audio_io_handle_t ioHandle, |
| AudioProfileVector &profiles); |
| |
| // updates device caching and output for streams that can influence the |
| // routing of notifications |
| void handleNotificationRoutingForStream(audio_stream_type_t stream); |
| // find the outputs on a given output descriptor that have the given address. |
| // to be called on an AudioOutputDescriptor whose supported devices (as defined |
| // in mProfile->mSupportedDevices) matches the device whose address is to be matched. |
| // see deviceDistinguishesOnAddress(audio_devices_t) for whether the device type is one |
| // where addresses are used to distinguish between one connected device and another. |
| void findIoHandlesByAddress(sp<SwAudioOutputDescriptor> desc /*in*/, |
| const audio_devices_t device /*in*/, |
| const String8 address /*in*/, |
| SortedVector<audio_io_handle_t>& outputs /*out*/); |
| uint32_t curAudioPortGeneration() const { return mAudioPortGeneration; } |
| // internal method to return the output handle for the given device and format |
| audio_io_handle_t getOutputForDevice( |
| audio_devices_t device, |
| audio_session_t session, |
| audio_stream_type_t stream, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_output_flags_t flags, |
| const audio_offload_info_t *offloadInfo); |
| // internal method to return the input handle for the given device and format |
| audio_io_handle_t getInputForDevice(audio_devices_t device, |
| String8 address, |
| audio_session_t session, |
| uid_t uid, |
| audio_source_t inputSource, |
| uint32_t samplingRate, |
| audio_format_t format, |
| audio_channel_mask_t channelMask, |
| audio_input_flags_t flags, |
| AudioMix *policyMix); |
| |
| // internal function to derive a stream type value from audio attributes |
| audio_stream_type_t streamTypefromAttributesInt(const audio_attributes_t *attr); |
| // event is one of STARTING_OUTPUT, STARTING_BEACON, STOPPING_OUTPUT, STOPPING_BEACON |
| // returns 0 if no mute/unmute event happened, the largest latency of the device where |
| // the mute/unmute happened |
| uint32_t handleEventForBeacon(int event); |
| uint32_t setBeaconMute(bool mute); |
| bool isValidAttributes(const audio_attributes_t *paa); |
| |
| // select input device corresponding to requested audio source and return associated policy |
| // mix if any. Calls getDeviceForInputSource(). |
| audio_devices_t getDeviceAndMixForInputSource(audio_source_t inputSource, |
| AudioMix **policyMix = NULL); |
| |
| // Called by setDeviceConnectionState(). |
| status_t setDeviceConnectionStateInt(audio_devices_t device, |
| audio_policy_dev_state_t state, |
| const char *device_address, |
| const char *device_name); |
| void updateMono(audio_io_handle_t output) { |
| AudioParameter param; |
| param.addInt(String8(AUDIO_PARAMETER_MONO_OUTPUT), (int)mMasterMono); |
| mpClientInterface->setParameters(output, param.toString()); |
| } |
| }; |
| |
| }; |
