1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_AUDIOPOLICY_INTERFACE_H 18 #define ANDROID_AUDIOPOLICY_INTERFACE_H 19 20 #include <android/media/DeviceConnectedState.h> 21 #include <android/media/TrackInternalMuteInfo.h> 22 #include <media/AudioCommonTypes.h> 23 #include <media/AudioContainers.h> 24 #include <media/AudioDeviceTypeAddr.h> 25 #include <media/AudioSystem.h> 26 #include <media/AudioPolicy.h> 27 #include <media/DeviceDescriptorBase.h> 28 #include <android/content/AttributionSourceState.h> 29 #include <utils/String8.h> 30 31 namespace android { 32 33 using content::AttributionSourceState; 34 35 // ---------------------------------------------------------------------------- 36 37 // The AudioPolicyInterface and AudioPolicyClientInterface classes define the communication 38 // interfaces between the platform specific audio policy manager and Android generic audio policy 39 // manager. 40 // The platform specific audio policy manager must implement methods of the AudioPolicyInterface 41 // class. 42 // This implementation makes use of the AudioPolicyClientInterface to control the activity and 43 // configuration of audio input and output streams. 44 // 45 // The platform specific audio policy manager is in charge of the audio routing and volume control 46 // policies for a given platform. 47 // The main roles of this module are: 48 // - keep track of current system state (removable device connections, phone state, 49 // user requests...). 50 // System state changes and user actions are notified to audio policy manager with methods of the 51 // AudioPolicyInterface. 52 // - process getOutput() queries received when AudioTrack objects are created: Those queries 53 // return a handler on an output that has been selected, configured and opened by the audio 54 // policy manager and that must be used by the AudioTrack when registering to the AudioFlinger 55 // with the createTrack() method. 56 // When the AudioTrack object is released, a putOutput() query is received and the audio policy 57 // manager can decide to close or reconfigure the output depending on other streams using this 58 // output and current system state. 59 // - similarly process getInput() and putInput() queries received from AudioRecord objects and 60 // configure audio inputs. 61 // - process volume control requests: the stream volume is converted from an index value 62 // (received from UI) to a float value applicable to each output as a function of platform 63 // specificsettings and current output route (destination device). It also make sure that streams 64 // are not muted if not allowed (e.g. camera shutter sound in some countries). 65 // 66 // The platform specific audio policy manager is provided as a shared library by platform vendors 67 // (as for libaudio.so) and is linked with libaudioflinger.so 68 // 69 // NOTE: by convention, the implementation of the AudioPolicyInterface in AudioPolicyManager does 70 // not have to perform any nullptr check on input arguments: The caller of this API is 71 // AudioPolicyService running in the same process and in charge of validating arguments received 72 // from incoming binder calls before calling AudioPolicyManager. 73 74 // Audio Policy Manager Interface 75 class AudioPolicyInterface 76 { 77 78 public: 79 typedef enum { 80 API_INPUT_INVALID = -1, 81 API_INPUT_LEGACY = 0,// e.g. audio recording from a microphone 82 API_INPUT_MIX_CAPTURE,// used for "remote submix" legacy mode (no DAP), 83 // capture of the media to play it remotely 84 API_INPUT_MIX_EXT_POLICY_REROUTE,// used for platform audio rerouting, where mixes are 85 // handled by external and dynamically installed 86 // policies which reroute audio mixes 87 API_INPUT_MIX_PUBLIC_CAPTURE_PLAYBACK, // used for playback capture with a MediaProjection 88 API_INPUT_TELEPHONY_RX, // used for capture from telephony RX path 89 } input_type_t; 90 91 typedef enum { 92 API_OUTPUT_INVALID = -1, 93 API_OUTPUT_LEGACY = 0,// e.g. audio playing to speaker 94 API_OUT_MIX_PLAYBACK, // used for "remote submix" playback of audio from remote source 95 // to local capture 96 API_OUTPUT_TELEPHONY_TX, // used for playback to telephony TX path 97 } output_type_t; 98 99 public: ~AudioPolicyInterface()100 virtual ~AudioPolicyInterface() {} 101 // 102 // configuration functions 103 // 104 105 // Informs APM that new HAL modules are available. This typically happens 106 // due to registration of an audio HAL service. 107 virtual void onNewAudioModulesAvailable() = 0; 108 109 // indicate a change in device connection status 110 virtual status_t setDeviceConnectionState(audio_policy_dev_state_t state, 111 const android::media::audio::common::AudioPort& port, 112 audio_format_t encodedFormat) = 0; 113 // retrieve a device connection status 114 virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 115 const char *device_address) = 0; 116 // indicate a change in device configuration 117 virtual status_t handleDeviceConfigChange(audio_devices_t device, 118 const char *device_address, 119 const char *device_name, 120 audio_format_t encodedFormat) = 0; 121 // indicate a change in phone state. Valid phones states are defined by audio_mode_t 122 virtual void setPhoneState(audio_mode_t state) = 0; 123 // force using a specific device category for the specified usage 124 virtual void setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) = 0; 125 // retrieve current device category forced for a given usage 126 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 127 // set a system property (e.g. camera sound always audible) 128 virtual void setSystemProperty(const char* property, const char* value) = 0; 129 // check proper initialization 130 virtual status_t initCheck() = 0; 131 132 // 133 // Audio routing query functions 134 // 135 136 // request an output appropriate for playback of the supplied stream type and parameters 137 virtual audio_io_handle_t getOutput(audio_stream_type_t stream) = 0; 138 virtual status_t getOutputForAttr(const audio_attributes_t *attr, 139 audio_io_handle_t *output, 140 audio_session_t session, 141 audio_stream_type_t *stream, 142 const AttributionSourceState& attributionSource, 143 audio_config_t *config, 144 audio_output_flags_t *flags, 145 audio_port_handle_t *selectedDeviceId, 146 audio_port_handle_t *portId, 147 std::vector<audio_io_handle_t> *secondaryOutputs, 148 output_type_t *outputType, 149 bool *isSpatialized, 150 bool *isBitPerfect) = 0; 151 // indicates to the audio policy manager that the output starts being used by corresponding 152 // stream. 153 virtual status_t startOutput(audio_port_handle_t portId) = 0; 154 // indicates to the audio policy manager that the output stops being used by corresponding 155 // stream. 156 virtual status_t stopOutput(audio_port_handle_t portId) = 0; 157 // releases the output, return true if the output descriptor is reopened. 158 virtual bool releaseOutput(audio_port_handle_t portId) = 0; 159 160 // request an input appropriate for record from the supplied device with supplied parameters. 161 virtual status_t getInputForAttr(const audio_attributes_t *attr, 162 audio_io_handle_t *input, 163 audio_unique_id_t riid, 164 audio_session_t session, 165 const AttributionSourceState& attributionSource, 166 audio_config_base_t *config, 167 audio_input_flags_t flags, 168 audio_port_handle_t *selectedDeviceId, 169 input_type_t *inputType, 170 audio_port_handle_t *portId, 171 uint32_t *virtualDeviceId) = 0; 172 // indicates to the audio policy manager that the input starts being used. 173 virtual status_t startInput(audio_port_handle_t portId) = 0; 174 // indicates to the audio policy manager that the input stops being used. 175 virtual status_t stopInput(audio_port_handle_t portId) = 0; 176 // releases the input. 177 virtual void releaseInput(audio_port_handle_t portId) = 0; 178 179 // 180 // volume control functions 181 // 182 183 // notifies the audio policy manager that the absolute volume mode is enabled/disabled on 184 // the passed device. Also specifies the stream that is controlling the absolute volume. 185 virtual status_t setDeviceAbsoluteVolumeEnabled(audio_devices_t device, 186 const char *address, 187 bool enabled, 188 audio_stream_type_t streamToDriveAbs) = 0; 189 // initialises stream volume conversion parameters by specifying volume index range. 190 virtual void initStreamVolume(audio_stream_type_t stream, 191 int indexMin, 192 int indexMax) = 0; 193 194 // sets the new stream volume at a level corresponding to the supplied index for the 195 // supplied device. By convention, specifying AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME means 196 // setting volume for all devices 197 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 198 int index, 199 audio_devices_t device) = 0; 200 201 // retrieve current volume index for the specified stream and the 202 // specified device. By convention, specifying AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME means 203 // querying the volume of the active device. 204 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 205 int *index, 206 audio_devices_t device) = 0; 207 208 virtual status_t setVolumeIndexForAttributes(const audio_attributes_t &attr, 209 int index, 210 audio_devices_t device) = 0; 211 virtual status_t getVolumeIndexForAttributes(const audio_attributes_t &attr, 212 int &index, 213 audio_devices_t device) = 0; 214 215 virtual status_t getMaxVolumeIndexForAttributes(const audio_attributes_t &attr, 216 int &index) = 0; 217 218 virtual status_t getMinVolumeIndexForAttributes(const audio_attributes_t &attr, 219 int &index) = 0; 220 221 // return the strategy corresponding to a given stream type 222 virtual product_strategy_t getStrategyForStream(audio_stream_type_t stream) = 0; 223 224 // retrieves the list of enabled output devices for the given audio attributes 225 virtual status_t getDevicesForAttributes(const audio_attributes_t &attr, 226 AudioDeviceTypeAddrVector *devices, 227 bool forVolume) = 0; 228 229 // Audio effect management 230 virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0; 231 virtual status_t registerEffect(const effect_descriptor_t *desc, 232 audio_io_handle_t io, 233 product_strategy_t strategy, 234 int session, 235 int id) = 0; 236 virtual status_t unregisterEffect(int id) = 0; 237 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 238 virtual status_t moveEffectsToIo(const std::vector<int>& ids, audio_io_handle_t io) = 0; 239 240 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 241 virtual bool isStreamActiveRemotely(audio_stream_type_t stream, 242 uint32_t inPastMs = 0) const = 0; 243 virtual bool isSourceActive(audio_source_t source) const = 0; 244 245 //dump state 246 virtual status_t dump(int fd) = 0; 247 248 virtual status_t setAllowedCapturePolicy(uid_t uid, audio_flags_mask_t flags) = 0; 249 virtual audio_offload_mode_t getOffloadSupport(const audio_offload_info_t& offloadInfo) = 0; 250 virtual bool isDirectOutputSupported(const audio_config_base_t& config, 251 const audio_attributes_t& attributes) = 0; 252 253 virtual status_t listAudioPorts(audio_port_role_t role, 254 audio_port_type_t type, 255 unsigned int *num_ports, 256 struct audio_port_v7 *ports, 257 unsigned int *generation) = 0; 258 virtual status_t listDeclaredDevicePorts(media::AudioPortRole role, 259 std::vector<media::AudioPortFw>* result) = 0; 260 virtual status_t getAudioPort(struct audio_port_v7 *port) = 0; 261 virtual status_t createAudioPatch(const struct audio_patch *patch, 262 audio_patch_handle_t *handle, 263 uid_t uid) = 0; 264 virtual status_t releaseAudioPatch(audio_patch_handle_t handle, 265 uid_t uid) = 0; 266 virtual status_t listAudioPatches(unsigned int *num_patches, 267 struct audio_patch *patches, 268 unsigned int *generation) = 0; 269 virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0; 270 virtual void releaseResourcesForUid(uid_t uid) = 0; 271 272 virtual status_t acquireSoundTriggerSession(audio_session_t *session, 273 audio_io_handle_t *ioHandle, 274 audio_devices_t *device) = 0; 275 276 virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0; 277 278 virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes) = 0; 279 virtual status_t unregisterPolicyMixes(Vector<AudioMix> mixes) = 0; 280 virtual status_t getRegisteredPolicyMixes(std::vector<AudioMix>& mixes) = 0; 281 282 virtual status_t updatePolicyMix( 283 const AudioMix& mix, 284 const std::vector<AudioMixMatchCriterion>& updatedCriteria) = 0; 285 286 virtual status_t setUidDeviceAffinities(uid_t uid, const AudioDeviceTypeAddrVector& devices) 287 = 0; 288 virtual status_t removeUidDeviceAffinities(uid_t uid) = 0; 289 290 virtual status_t setUserIdDeviceAffinities(int userId, 291 const AudioDeviceTypeAddrVector& devices) = 0; 292 virtual status_t removeUserIdDeviceAffinities(int userId) = 0; 293 294 virtual status_t startAudioSource(const struct audio_port_config *source, 295 const audio_attributes_t *attributes, 296 audio_port_handle_t *portId, 297 uid_t uid) = 0; 298 virtual status_t stopAudioSource(audio_port_handle_t portId) = 0; 299 300 virtual status_t setMasterMono(bool mono) = 0; 301 virtual status_t getMasterMono(bool *mono) = 0; 302 303 virtual float getStreamVolumeDB( 304 audio_stream_type_t stream, int index, audio_devices_t device) = 0; 305 306 virtual status_t getSurroundFormats(unsigned int *numSurroundFormats, 307 audio_format_t *surroundFormats, 308 bool *surroundFormatsEnabled) = 0; 309 310 virtual status_t getReportedSurroundFormats(unsigned int *numSurroundFormats, 311 audio_format_t *surroundFormats) = 0; 312 313 virtual status_t setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled) = 0; 314 315 virtual bool isHapticPlaybackSupported() = 0; 316 317 virtual bool isUltrasoundSupported() = 0; 318 319 virtual bool isHotwordStreamSupported(bool lookbackAudio) = 0; 320 321 virtual status_t getHwOffloadFormatsSupportedForBluetoothMedia( 322 audio_devices_t device, std::vector<audio_format_t> *formats) = 0; 323 324 virtual void setAppState(audio_port_handle_t portId, app_state_t state) = 0; 325 326 virtual status_t listAudioProductStrategies(AudioProductStrategyVector &strategies) = 0; 327 328 virtual status_t getProductStrategyFromAudioAttributes( 329 const audio_attributes_t &aa, product_strategy_t &productStrategy, 330 bool fallbackOnDefault) = 0; 331 332 virtual status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) = 0; 333 334 virtual status_t getVolumeGroupFromAudioAttributes( 335 const audio_attributes_t &aa, volume_group_t &volumeGroup, bool fallbackOnDefault) = 0; 336 337 virtual bool isCallScreenModeSupported() = 0; 338 339 virtual status_t setDevicesRoleForStrategy(product_strategy_t strategy, 340 device_role_t role, 341 const AudioDeviceTypeAddrVector &devices) = 0; 342 343 virtual status_t removeDevicesRoleForStrategy(product_strategy_t strategy, 344 device_role_t role, 345 const AudioDeviceTypeAddrVector &devices) = 0; 346 347 virtual status_t clearDevicesRoleForStrategy(product_strategy_t strategy, 348 device_role_t role) = 0; 349 350 virtual status_t getDevicesForRoleAndStrategy(product_strategy_t strategy, 351 device_role_t role, 352 AudioDeviceTypeAddrVector &devices) = 0; 353 354 virtual status_t setDevicesRoleForCapturePreset(audio_source_t audioSource, 355 device_role_t role, 356 const AudioDeviceTypeAddrVector &devices) = 0; 357 358 virtual status_t addDevicesRoleForCapturePreset(audio_source_t audioSource, 359 device_role_t role, 360 const AudioDeviceTypeAddrVector &devices) = 0; 361 362 virtual status_t removeDevicesRoleForCapturePreset( 363 audio_source_t audioSource, device_role_t role, 364 const AudioDeviceTypeAddrVector& devices) = 0; 365 366 virtual status_t clearDevicesRoleForCapturePreset(audio_source_t audioSource, 367 device_role_t role) = 0; 368 369 virtual status_t getDevicesForRoleAndCapturePreset(audio_source_t audioSource, 370 device_role_t role, 371 AudioDeviceTypeAddrVector &devices) = 0; 372 373 /** 374 * Queries if some kind of spatialization will be performed if the audio playback context 375 * described by the provided arguments is present. 376 * The context is made of: 377 * - The audio attributes describing the playback use case. 378 * - The audio configuration describing the audio format, channels, sampling rate ... 379 * - The devices describing the sink audio device selected for playback. 380 * All arguments are optional and only the specified arguments are used to match against 381 * supported criteria. For instance, supplying no argument will tell if spatialization is 382 * supported or not in general. 383 * @param attr audio attributes describing the playback use case 384 * @param config audio configuration describing the audio format, channels, sampling rate... 385 * @param devices the sink audio device selected for playback 386 * @return true if spatialization is enabled for this context, 387 * false otherwise 388 */ 389 virtual bool canBeSpatialized(const audio_attributes_t *attr, 390 const audio_config_t *config, 391 const AudioDeviceTypeAddrVector &devices) const = 0; 392 393 /** 394 * Opens a specialized spatializer output if supported by the platform. 395 * If several spatializer output profiles exist, the one supporting the sink device 396 * corresponding to the provided audio attributes will be selected. 397 * Only one spatializer output stream can be opened at a time and an error is returned 398 * if one already exists. 399 * @param config audio format, channel mask and sampling rate to be used as the mixer 400 * configuration for the spatializer mixer created. 401 * @param attr audio attributes describing the playback use case that will drive the 402 * sink device selection 403 * @param output the IO handle of the output opened 404 * @return NO_ERROR if an output was opened, INVALID_OPERATION or BAD_VALUE otherwise 405 */ 406 virtual status_t getSpatializerOutput(const audio_config_base_t *config, 407 const audio_attributes_t *attr, 408 audio_io_handle_t *output) = 0; 409 410 /** 411 * Closes a previously opened specialized spatializer output. 412 * @param output the IO handle of the output to close. 413 * @return NO_ERROR if an output was closed, INVALID_OPERATION or BAD_VALUE otherwise 414 */ 415 virtual status_t releaseSpatializerOutput(audio_io_handle_t output) = 0; 416 417 /** 418 * Query how the direct playback is currently supported on the device. 419 * @param attr audio attributes describing the playback use case 420 * @param config audio configuration for the playback 421 * @param directMode out: a set of flags describing how the direct playback is currently 422 * supported on the device 423 * @return NO_ERROR in case of success, DEAD_OBJECT, NO_INIT, BAD_VALUE, PERMISSION_DENIED 424 * in case of error. 425 */ 426 virtual audio_direct_mode_t getDirectPlaybackSupport(const audio_attributes_t *attr, 427 const audio_config_t *config) = 0; 428 429 // retrieves the list of available direct audio profiles for the given audio attributes 430 virtual status_t getDirectProfilesForAttributes(const audio_attributes_t* attr, 431 AudioProfileVector& audioProfiles) = 0; 432 433 virtual status_t getSupportedMixerAttributes( 434 audio_port_handle_t portId, std::vector<audio_mixer_attributes_t>& mixerAttrs) = 0; 435 virtual status_t setPreferredMixerAttributes( 436 const audio_attributes_t* attr, 437 audio_port_handle_t portId, 438 uid_t uid, 439 const audio_mixer_attributes_t* mixerAttributes) = 0; 440 virtual status_t getPreferredMixerAttributes(const audio_attributes_t* attr, 441 audio_port_handle_t portId, 442 audio_mixer_attributes_t* mixerAttributes) = 0; 443 virtual status_t clearPreferredMixerAttributes(const audio_attributes_t* attr, 444 audio_port_handle_t portId, 445 uid_t uid) = 0; 446 }; 447 448 // Audio Policy client Interface 449 class AudioPolicyClientInterface 450 { 451 public: ~AudioPolicyClientInterface()452 virtual ~AudioPolicyClientInterface() {} 453 454 virtual status_t getAudioPolicyConfig(media::AudioPolicyConfig *config) = 0; 455 456 // 457 // Audio HW module functions 458 // 459 460 // loads a HW module. 461 virtual audio_module_handle_t loadHwModule(const char *name) = 0; 462 463 // 464 // Audio output Control functions 465 // 466 467 // opens an audio output with the requested parameters. The parameter values can indicate to 468 // use the default values in case the audio policy manager has no specific requirements for the 469 // output being opened. 470 // When the function returns, the parameter values reflect the actual values used by the audio 471 // hardware output stream. 472 // The audio policy manager can check if the proposed parameters are suitable or not and act 473 // accordingly. 474 virtual status_t openOutput(audio_module_handle_t module, 475 audio_io_handle_t *output, 476 audio_config_t *halConfig, 477 audio_config_base_t *mixerConfig, 478 const sp<DeviceDescriptorBase>& device, 479 uint32_t *latencyMs, 480 audio_output_flags_t flags) = 0; 481 // creates a special output that is duplicated to the two outputs passed as arguments. 482 // The duplication is performed by a special mixer thread in the AudioFlinger. 483 virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, 484 audio_io_handle_t output2) = 0; 485 // closes the output stream 486 virtual status_t closeOutput(audio_io_handle_t output) = 0; 487 // suspends the output. When an output is suspended, the corresponding audio hardware output 488 // stream is placed in standby and the AudioTracks attached to the mixer thread are still 489 // processed but the output mix is discarded. 490 virtual status_t suspendOutput(audio_io_handle_t output) = 0; 491 // restores a suspended output. 492 virtual status_t restoreOutput(audio_io_handle_t output) = 0; 493 494 // 495 // Audio input Control functions 496 // 497 498 // opens an audio input 499 virtual status_t openInput(audio_module_handle_t module, 500 audio_io_handle_t *input, 501 audio_config_t *config, 502 audio_devices_t *device, 503 const String8& address, 504 audio_source_t source, 505 audio_input_flags_t flags) = 0; 506 // closes an audio input 507 virtual status_t closeInput(audio_io_handle_t input) = 0; 508 // 509 // misc control functions 510 // 511 512 // set a stream volume for a particular output. For the same user setting, a given stream type 513 // can have different volumes 514 // for each output (destination device) it is attached to. 515 virtual status_t setStreamVolume(audio_stream_type_t stream, float volume, 516 audio_io_handle_t output, int delayMs = 0) = 0; 517 518 // function enabling to send proprietary informations directly from audio policy manager to 519 // audio hardware interface. 520 virtual void setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, 521 int delayMs = 0) = 0; 522 // function enabling to receive proprietary informations directly from audio hardware interface 523 // to audio policy manager. 524 virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) = 0; 525 526 // set down link audio volume. 527 virtual status_t setVoiceVolume(float volume, int delayMs = 0) = 0; 528 529 // move effect to the specified output 530 virtual status_t moveEffects(audio_session_t session, 531 audio_io_handle_t srcOutput, 532 audio_io_handle_t dstOutput) = 0; 533 534 virtual void setEffectSuspended(int effectId, 535 audio_session_t sessionId, 536 bool suspended) = 0; 537 538 /* Create a patch between several source and sink ports */ 539 virtual status_t createAudioPatch(const struct audio_patch *patch, 540 audio_patch_handle_t *handle, 541 int delayMs) = 0; 542 543 /* Release a patch */ 544 virtual status_t releaseAudioPatch(audio_patch_handle_t handle, 545 int delayMs) = 0; 546 547 /* Set audio port configuration */ 548 virtual status_t setAudioPortConfig(const struct audio_port_config *config, int delayMs) = 0; 549 550 virtual void onAudioPortListUpdate() = 0; 551 552 virtual void onAudioPatchListUpdate() = 0; 553 554 virtual void onAudioVolumeGroupChanged(volume_group_t group, int flags) = 0; 555 556 virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0; 557 558 virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state) = 0; 559 560 virtual void onRecordingConfigurationUpdate(int event, 561 const record_client_info_t *clientInfo, 562 const audio_config_base_t *clientConfig, 563 std::vector<effect_descriptor_t> clientEffects, 564 const audio_config_base_t *deviceConfig, 565 std::vector<effect_descriptor_t> effects, 566 audio_patch_handle_t patchHandle, 567 audio_source_t source) = 0; 568 569 virtual void onRoutingUpdated() = 0; 570 571 // Used to notify AudioService that an error was encountering when reading 572 // the volume ranges, and that they should be re-initialized 573 virtual void onVolumeRangeInitRequest() = 0; 574 575 // Used to notify the sound trigger module that an audio capture is about to 576 // take place. This should typically result in any active recognition 577 // sessions to be preempted on modules that do not support sound trigger 578 // recognition concurrently with audio capture. 579 virtual void setSoundTriggerCaptureState(bool active) = 0; 580 581 virtual status_t getAudioPort(struct audio_port_v7 *port) = 0; 582 583 virtual status_t updateSecondaryOutputs( 584 const TrackSecondaryOutputsMap& trackSecondaryOutputs) = 0; 585 586 virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, 587 media::DeviceConnectedState state) = 0; 588 589 virtual status_t invalidateTracks(const std::vector<audio_port_handle_t>& portIds) = 0; 590 591 // Get the attributes of the mix port when connecting to the given device port. 592 virtual status_t getAudioMixPort(const struct audio_port_v7 *devicePort, 593 struct audio_port_v7 *mixPort) = 0; 594 595 virtual status_t setTracksInternalMute( 596 const std::vector<media::TrackInternalMuteInfo>& tracksInternalMute) = 0; 597 }; 598 599 // These are the signatures of createAudioPolicyManager/destroyAudioPolicyManager 600 // methods respectively, expected by AudioPolicyService, needs to be exposed by 601 // libaudiopolicymanagercustom. 602 using CreateAudioPolicyManagerInstance = 603 AudioPolicyInterface* (*)(AudioPolicyClientInterface*); 604 using DestroyAudioPolicyManagerInstance = void (*)(AudioPolicyInterface*); 605 606 } // namespace android 607 608 #endif // ANDROID_AUDIOPOLICY_INTERFACE_H 609