summaryrefslogtreecommitdiffstats
path: root/audio/AudioPolicyManagerBase.h
diff options
context:
space:
mode:
Diffstat (limited to 'audio/AudioPolicyManagerBase.h')
-rwxr-xr-xaudio/AudioPolicyManagerBase.h393
1 files changed, 0 insertions, 393 deletions
diff --git a/audio/AudioPolicyManagerBase.h b/audio/AudioPolicyManagerBase.h
deleted file mode 100755
index 3ab748d..0000000
--- a/audio/AudioPolicyManagerBase.h
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * 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.
- */
-
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <utils/Timers.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <hardware_legacy/AudioPolicyInterface.h>
-
-
-namespace android_audio_legacy {
- using android::KeyedVector;
-
-// ----------------------------------------------------------------------------
-
-#define MAX_DEVICE_ADDRESS_LEN 20
-// Attenuation applied to STRATEGY_SONIFICATION streams when a headset is connected: 6dB
-#define SONIFICATION_HEADSET_VOLUME_FACTOR 0.5
-// Min volume for STRATEGY_SONIFICATION streams when limited by music volume: -36dB
-#define SONIFICATION_HEADSET_VOLUME_MIN 0.016
-// 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
-
-// ----------------------------------------------------------------------------
-// AudioPolicyManagerBase implements audio policy manager behavior common to all platforms.
-// Each platform must implement an AudioPolicyManager class derived from AudioPolicyManagerBase
-// and override methods for which the platform specific behavior differs from the implementation
-// in AudioPolicyManagerBase. Even if no specific behavior is required, the AudioPolicyManager
-// class must be implemented as well as the class factory function createAudioPolicyManager()
-// and provided in a shared library libaudiopolicy.so.
-// ----------------------------------------------------------------------------
-
-class AudioPolicyManagerBase: public AudioPolicyInterface
-#ifdef AUDIO_POLICY_TEST
- , public Thread
-#endif //AUDIO_POLICY_TEST
-{
-
-public:
- AudioPolicyManagerBase(AudioPolicyClientInterface *clientInterface);
- virtual ~AudioPolicyManagerBase();
-
- // AudioPolicyInterface
- virtual status_t setDeviceConnectionState(AudioSystem::audio_devices device,
- AudioSystem::device_connection_state state,
- const char *device_address);
- virtual AudioSystem::device_connection_state getDeviceConnectionState(AudioSystem::audio_devices device,
- const char *device_address);
- virtual void setPhoneState(int state);
- virtual void setRingerMode(uint32_t mode, uint32_t mask);
- virtual void setForceUse(AudioSystem::force_use usage, AudioSystem::forced_config config);
- virtual AudioSystem::forced_config getForceUse(AudioSystem::force_use usage);
- virtual void setSystemProperty(const char* property, const char* value);
- virtual status_t initCheck();
- virtual audio_io_handle_t getOutput(AudioSystem::stream_type stream,
- uint32_t samplingRate = 0,
- uint32_t format = AudioSystem::FORMAT_DEFAULT,
- uint32_t channels = 0,
- AudioSystem::output_flags flags =
- AudioSystem::OUTPUT_FLAG_INDIRECT);
- virtual status_t startOutput(audio_io_handle_t output,
- AudioSystem::stream_type stream,
- int session = 0);
- virtual status_t stopOutput(audio_io_handle_t output,
- AudioSystem::stream_type stream,
- int session = 0);
- virtual void releaseOutput(audio_io_handle_t output);
- virtual audio_io_handle_t getInput(int inputSource,
- uint32_t samplingRate,
- uint32_t format,
- uint32_t channels,
- AudioSystem::audio_in_acoustics acoustics);
- // indicates to the audio policy manager that the input starts being used.
- virtual status_t startInput(audio_io_handle_t input);
- // indicates to the audio policy manager that the input stops being used.
- virtual status_t stopInput(audio_io_handle_t input);
- virtual void releaseInput(audio_io_handle_t input);
- virtual void initStreamVolume(AudioSystem::stream_type stream,
- int indexMin,
- int indexMax);
- virtual status_t setStreamVolumeIndex(AudioSystem::stream_type stream, int index);
- virtual status_t getStreamVolumeIndex(AudioSystem::stream_type stream, int *index);
-
- // return the strategy corresponding to a given stream type
- virtual uint32_t getStrategyForStream(AudioSystem::stream_type stream);
-
- // return the enabled output devices for the given stream type
- virtual uint32_t getDevicesForStream(AudioSystem::stream_type stream);
-
- virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc);
- virtual status_t registerEffect(effect_descriptor_t *desc,
- audio_io_handle_t io,
- uint32_t strategy,
- int session,
- int id);
- virtual status_t unregisterEffect(int id);
- virtual status_t setEffectEnabled(int id, bool enabled);
-
- virtual bool isStreamActive(int stream, uint32_t inPastMs = 0) const;
-
- virtual status_t dump(int fd);
-
-protected:
-
- enum routing_strategy {
- STRATEGY_MEDIA,
- STRATEGY_PHONE,
- STRATEGY_SONIFICATION,
- STRATEGY_DTMF,
- STRATEGY_ENFORCED_AUDIBLE,
- NUM_STRATEGIES
- };
-
- // 4 points to define the volume attenuation curve, each characterized by the volume
- // index (from 0 to 100) at which they apply, and the attenuation in dB at that index.
- // we use 100 steps to avoid rounding errors when computing the volume in volIndexToAmpl()
-
- enum { VOLMIN = 0, VOLKNEE1 = 1, VOLKNEE2 = 2, VOLMAX = 3, VOLCNT = 4};
-
- class VolumeCurvePoint
- {
- public:
- int mIndex;
- float mDBAttenuation;
- };
-
- // device categories used for volume curve management.
- enum device_category {
- DEVICE_CATEGORY_HEADSET,
- DEVICE_CATEGORY_SPEAKER,
- DEVICE_CATEGORY_EARPIECE,
- DEVICE_CATEGORY_CNT
- };
-
- // default volume curve
- static const VolumeCurvePoint sDefaultVolumeCurve[AudioPolicyManagerBase::VOLCNT];
- // default volume curve for media strategy
- static const VolumeCurvePoint sDefaultMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT];
- // volume curve for media strategy on speakers
- static const VolumeCurvePoint sSpeakerMediaVolumeCurve[AudioPolicyManagerBase::VOLCNT];
- // volume curve for sonification strategy on speakers
- static const VolumeCurvePoint sSpeakerSonificationVolumeCurve[AudioPolicyManagerBase::VOLCNT];
- // default volume curves per strategy and device category. See initializeVolumeCurves()
- static const VolumeCurvePoint *sVolumeProfiles[NUM_STRATEGIES][DEVICE_CATEGORY_CNT];
-
- // descriptor for audio outputs. Used to maintain current configuration of each opened audio output
- // and keep track of the usage of this output by each audio stream type.
- class AudioOutputDescriptor
- {
- public:
- AudioOutputDescriptor();
-
- status_t dump(int fd);
-
- uint32_t device();
- void changeRefCount(AudioSystem::stream_type, int delta);
- uint32_t refCount();
- uint32_t strategyRefCount(routing_strategy strategy);
- bool isUsedByStrategy(routing_strategy strategy) { return (strategyRefCount(strategy) != 0);}
- bool isDuplicated() { return (mOutput1 != NULL && mOutput2 != NULL); }
-
- audio_io_handle_t mId; // output handle
- uint32_t mSamplingRate; //
- uint32_t mFormat; //
- uint32_t mChannels; // output configuration
- uint32_t mLatency; //
- AudioSystem::output_flags mFlags; //
- uint32_t mDevice; // current device this output is routed to
- uint32_t mRefCount[AudioSystem::NUM_STREAM_TYPES]; // number of streams of each type using this output
- nsecs_t mStopTime[AudioSystem::NUM_STREAM_TYPES];
- AudioOutputDescriptor *mOutput1; // used by duplicated outputs: first output
- AudioOutputDescriptor *mOutput2; // used by duplicated outputs: second output
- float mCurVolume[AudioSystem::NUM_STREAM_TYPES]; // current stream volume
- int mMuteCount[AudioSystem::NUM_STREAM_TYPES]; // mute request counter
- };
-
- // descriptor for audio inputs. Used to maintain current configuration of each opened audio input
- // and keep track of the usage of this input.
- class AudioInputDescriptor
- {
- public:
- AudioInputDescriptor();
-
- status_t dump(int fd);
-
- uint32_t mSamplingRate; //
- uint32_t mFormat; // input configuration
- uint32_t mChannels; //
- AudioSystem::audio_in_acoustics mAcoustics; //
- uint32_t mDevice; // current device this input is routed to
- uint32_t mRefCount; // number of AudioRecord clients using this output
- int mInputSource; // input source selected by application (mediarecorder.h)
- };
-
- // stream descriptor used for volume control
- class StreamDescriptor
- {
- public:
- StreamDescriptor()
- : mIndexMin(0), mIndexMax(1), mIndexCur(1), mCanBeMuted(true) {}
-
- void dump(char* buffer, size_t size);
-
- int mIndexMin; // min volume index
- int mIndexMax; // max volume index
- int mIndexCur; // current volume index
- bool mCanBeMuted; // true is the stream can be muted
-
- const VolumeCurvePoint *mVolumeCurve[DEVICE_CATEGORY_CNT];
- };
-
- // stream descriptor used for volume control
- class EffectDescriptor
- {
- public:
-
- status_t dump(int fd);
-
- int mIo; // io the effect is attached to
- routing_strategy mStrategy; // routing strategy the effect is associated to
- int mSession; // audio session the effect is on
- effect_descriptor_t mDesc; // effect descriptor
- bool mEnabled; // enabled state: CPU load being used or not
- };
-
- void addOutput(audio_io_handle_t id, AudioOutputDescriptor *outputDesc);
-
- // return the strategy corresponding to a given stream type
- static routing_strategy getStrategy(AudioSystem::stream_type stream);
- // 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 determined
- // 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 updateDeviceForStrategy() is called.
- virtual uint32_t getDeviceForStrategy(routing_strategy strategy, bool fromCache = true);
- // change the route of the specified output
- void setOutputDevice(audio_io_handle_t output, uint32_t device, bool force = false, int delayMs = 0);
- // select input device corresponding to requested audio source
- virtual uint32_t getDeviceForInputSource(int inputSource);
- // return io handle of active input or 0 if no input is active
- audio_io_handle_t getActiveInput();
- // initialize volume curves for each strategy and device category
- void initializeVolumeCurves();
- // compute the actual volume for a given stream according to the requested index and a particular
- // device
- virtual float computeVolume(int stream, int index, audio_io_handle_t output, uint32_t device);
- // check that volume change is permitted, compute and send new volume to audio hardware
- status_t checkAndSetVolume(int stream, int index, audio_io_handle_t output, uint32_t device, int delayMs = 0, bool force = false);
- // apply all stream volumes to the specified output and device
- void applyStreamVolumes(audio_io_handle_t output, uint32_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, audio_io_handle_t output, int delayMs = 0);
- // Mute or unmute the stream on the specified output
- void setStreamMute(int stream, bool on, audio_io_handle_t output, int delayMs = 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(int stream, bool starting, bool stateChange);
- // true is current platform implements a back microphone
- virtual bool hasBackMicrophone() const { return false; }
- // 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);
-
-#ifdef WITH_A2DP
- // true is current platform supports suplication of notifications and ringtones over A2DP output
- virtual bool a2dpUsedForSonification() const { return true; }
- status_t handleA2dpConnection(AudioSystem::audio_devices device,
- const char *device_address);
- status_t handleA2dpDisconnection(AudioSystem::audio_devices device,
- const char *device_address);
- void closeA2dpOutputs();
- // checks and if necessary changes output (a2dp, duplicated or hardware) used for all strategies.
- // must be called every time a condition that affects the output choice for a given strategy is
- // changed: connected device, phone state, force use...
- // Must be called before updateDeviceForStrategy()
- 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();
-#endif
- // 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
- uint32_t getNewDevice(audio_io_handle_t output, bool fromCache = true);
- // 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 updateDeviceForStrategy();
- // true if current platform requires a specific output to be opened for this particular
- // set of parameters. This function is called by getOutput() and is implemented by platform
- // specific audio policy manager.
- virtual bool needsDirectOuput(AudioSystem::stream_type stream,
- uint32_t samplingRate,
- uint32_t format,
- uint32_t channels,
- AudioSystem::output_flags flags,
- uint32_t device);
- virtual uint32_t getMaxEffectsCpuLoad();
- virtual uint32_t getMaxEffectsMemory();
-#ifdef AUDIO_POLICY_TEST
- virtual bool threadLoop();
- void exit();
- int testOutputIndex(audio_io_handle_t output);
-#endif //AUDIO_POLICY_TEST
-
- status_t setEffectEnabled(EffectDescriptor *pDesc, bool enabled);
-
- // returns the category the device belongs to with regard to volume curve management
- static device_category getDeviceCategory(uint32_t device);
-
- AudioPolicyClientInterface *mpClientInterface; // audio policy client interface
- audio_io_handle_t mHardwareOutput; // hardware output handler
- audio_io_handle_t mA2dpOutput; // A2DP output handler
- audio_io_handle_t mDuplicatedOutput; // duplicated output handler: outputs to hardware and A2DP.
-
- KeyedVector<audio_io_handle_t, AudioOutputDescriptor *> mOutputs; // list of output descriptors
- KeyedVector<audio_io_handle_t, AudioInputDescriptor *> mInputs; // list of input descriptors
- uint32_t mAvailableOutputDevices; // bit field of all available output devices
- uint32_t mAvailableInputDevices; // bit field of all available input devices
- int mPhoneState; // current phone state
- uint32_t mRingerMode; // current ringer mode
- AudioSystem::forced_config mForceUse[AudioSystem::NUM_FORCE_USE]; // current forced use configuration
-
- StreamDescriptor mStreams[AudioSystem::NUM_STREAM_TYPES]; // stream descriptors for volume control
- String8 mA2dpDeviceAddress; // A2DP device MAC address
- String8 mScoDeviceAddress; // SCO device MAC address
- bool mLimitRingtoneVolume; // limit ringtone volume to music volume if headset connected
- uint32_t mDeviceForStrategy[NUM_STRATEGIES];
- float mLastVoiceVolume; // last voice volume value sent to audio HAL
-
- // Maximum CPU load allocated to audio effects in 0.1 MIPS (ARMv5TE, 0 WS memory) units
- static const uint32_t MAX_EFFECTS_CPU_LOAD = 1000;
- // Maximum memory allocated to audio effects in KB
- static const uint32_t MAX_EFFECTS_MEMORY = 512;
- uint32_t mTotalEffectsCpuLoad; // current CPU load used by effects
- uint32_t mTotalEffectsMemory; // current memory used by effects
- KeyedVector<int, EffectDescriptor *> mEffects; // list of registered audio effects
- bool mA2dpSuspended; // true if A2DP output is suspended
-
-#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
-
-private:
- static float volIndexToAmpl(uint32_t device, const StreamDescriptor& streamDesc,
- int indexInUi);
-};
-
-};
generated by cgit v1.1 at 2025-08-15 10:45:49 +0000