AudioSystem.h revision 99e53b86eebb605b70dd7591b89bf61a9414ed0e
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright (C) 2008 The Android Open Source Project 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Licensed under the Apache License, Version 2.0 (the "License"); 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * you may not use this file except in compliance with the License. 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * You may obtain a copy of the License at 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * http://www.apache.org/licenses/LICENSE-2.0 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Unless required by applicable law or agreed to in writing, software 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * distributed under the License is distributed on an "AS IS" BASIS, 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * See the License for the specific language governing permissions and 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * limitations under the License. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 175e3f23d412006dc4db4e659864679f29341e113fTorne (Richard Coles)#ifndef ANDROID_AUDIOSYSTEM_H_ 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define ANDROID_AUDIOSYSTEM_H_ 19868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <utils/RefBase.h> 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <utils/threads.h> 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <media/IAudioFlinger.h> 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <system/audio.h> 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <system/audio_policy.h> 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* XXX: Should be include by all the users instead */ 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <media/AudioParameter.h> 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace android { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)typedef void (*audio_error_callback)(status_t err); 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class IAudioPolicyService; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class String8; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class AudioSystem 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /* These are static methods to control the system-wide AudioFlinger 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * only privileged processes can have access to them 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mute/unmute microphone 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t muteMicrophone(bool state); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t isMicrophoneMuted(bool *state); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // set/get master volume 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setMasterVolume(float value); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getMasterVolume(float* volume); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mute/unmute audio outputs 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setMasterMute(bool mute); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getMasterMute(bool* mute); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // set/get stream volume on specified output 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setStreamVolume(audio_stream_type_t stream, float value, 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_io_handle_t output); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getStreamVolume(audio_stream_type_t stream, float* volume, 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_io_handle_t output); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mute/unmute stream 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setStreamMute(audio_stream_type_t stream, bool mute); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getStreamMute(audio_stream_type_t stream, bool* mute); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // set audio mode in audio hardware 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setMode(audio_mode_t mode); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // returns true in *state if tracks are active on the specified stream or has been active 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // in the past inPastMs milliseconds 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs = 0); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // set/get audio hardware parameters. The function accepts a list of parameters 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // key value pairs in the form: key1=value1;key2=value2;... 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Some keys are reserved for standard parameters (See AudioParameter class). 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static String8 getParameters(audio_io_handle_t ioHandle, const String8& keys); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void setErrorCallback(audio_error_callback cb); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // helper function to obtain AudioFlinger service handle 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const sp<IAudioFlinger>& get_audio_flinger(); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static float linearToLog(int volume); 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static int logToLinear(float volume); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getOutputSamplingRate(int* samplingRate, audio_stream_type_t stream = AUDIO_STREAM_DEFAULT); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getOutputFrameCount(int* frameCount, audio_stream_type_t stream = AUDIO_STREAM_DEFAULT); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getOutputLatency(uint32_t* latency, audio_stream_type_t stream = AUDIO_STREAM_DEFAULT); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // DEPRECATED 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getOutputSamplingRate(int* samplingRate, int stream = AUDIO_STREAM_DEFAULT); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // DEPRECATED 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getOutputFrameCount(int* frameCount, int stream = AUDIO_STREAM_DEFAULT); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool routedToA2dpOutput(audio_stream_type_t streamType); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount, 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t* buffSize); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setVoiceVolume(float volume); 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // return the number of audio frames written by AudioFlinger to audio HAL and 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // audio dsp to DAC since the output on which the specified stream is playing 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // has exited standby. 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // returned status (from utils/Errors.h) can be: 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // - INVALID_OPERATION: Not supported on current hardware platform 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // - BAD_VALUE: invalid parameter 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // NOTE: this feature is not supported on all hardware platforms and it is 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // necessary to check returned status before using the returned values. 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, audio_stream_type_t stream = AUDIO_STREAM_DEFAULT); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static unsigned int getInputFramesLost(audio_io_handle_t ioHandle); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static int newAudioSessionId(); 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void acquireAudioSessionId(int audioSession); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void releaseAudioSessionId(int audioSession); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // types of io configuration change events received with ioConfigChanged() 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum io_config_event { 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OUTPUT_OPENED, 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OUTPUT_CLOSED, 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OUTPUT_CONFIG_CHANGED, 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) INPUT_OPENED, 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) INPUT_CLOSED, 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) INPUT_CONFIG_CHANGED, 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STREAM_CONFIG_CHANGED, 13190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NUM_CONFIG_EVENTS 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // audio output descriptor used to cache output configurations in client process to avoid frequent calls 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // through IAudioFlinger 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class OutputDescriptor { 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OutputDescriptor() 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : samplingRate(0), format(AUDIO_FORMAT_DEFAULT), channels(0), frameCount(0), latency(0) {} 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t samplingRate; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t format; 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int32_t channels; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t frameCount; 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t latency; 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state, const char *device_address); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, const char *device_address); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setPhoneState(audio_mode_t state); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config); 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_io_handle_t getOutput(audio_stream_type_t stream, 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t samplingRate = 0, 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_format_t format = AUDIO_FORMAT_DEFAULT, 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t channels = AUDIO_CHANNEL_OUT_STEREO, 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_policy_output_flags_t flags = AUDIO_POLICY_OUTPUT_FLAG_INDIRECT); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t startOutput(audio_io_handle_t output, 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_stream_type_t stream, 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int session = 0); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t stopOutput(audio_io_handle_t output, 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_stream_type_t stream, 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int session = 0); 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void releaseOutput(audio_io_handle_t output); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_io_handle_t getInput(audio_source_t inputSource, 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t samplingRate = 0, 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_format_t format = AUDIO_FORMAT_DEFAULT, 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t channels = AUDIO_CHANNEL_IN_MONO, 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_in_acoustics_t acoustics = (audio_in_acoustics_t)0, 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int sessionId = 0); 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t startInput(audio_io_handle_t input); 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t stopInput(audio_io_handle_t input); 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void releaseInput(audio_io_handle_t input); 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t initStreamVolume(audio_stream_type_t stream, 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int indexMin, 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int indexMax); 1802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static status_t setStreamVolumeIndex(audio_stream_type_t stream, 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int index, 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_devices_t device); 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t getStreamVolumeIndex(audio_stream_type_t stream, 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int *index, 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_devices_t device); 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static uint32_t getStrategyForStream(audio_stream_type_t stream); 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static uint32_t getDevicesForStream(audio_stream_type_t stream); 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc); 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t registerEffect(effect_descriptor_t *desc, 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) audio_io_handle_t io, 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t strategy, 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int session, 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int id); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t unregisterEffect(int id); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static status_t setEffectEnabled(int id, bool enabled); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // clear stream to output mapping cache (gStreamOutputMap) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // and output configuration cache (gOutputs) 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static void clearAudioConfigCache(); 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const sp<IAudioPolicyService>& get_audio_policy_service(); 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ---------------------------------------------------------------------------- 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)private: 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 20990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AudioFlingerClient() { 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // DeathRecipient 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void binderDied(const wp<IBinder>& who); 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // IAudioFlingerClient 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // indicate a change in the configuration of an output or input: keeps the cached 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // values for output/input parameters upto date in client process 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void ioConfigChanged(int event, audio_io_handle_t ioHandle, void *param2); 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class AudioPolicyServiceClient: public IBinder::DeathRecipient 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AudioPolicyServiceClient() { 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // DeathRecipient 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void binderDied(const wp<IBinder>& who); 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static sp<AudioFlingerClient> gAudioFlingerClient; 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient; 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class AudioFlingerClient; 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class AudioPolicyServiceClient; 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static Mutex gLock; 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static sp<IAudioFlinger> gAudioFlinger; 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_error_callback gAudioErrorCallback; 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static size_t gInBuffSize; 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // previous parameters for recording buffer size queries 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static uint32_t gPrevInSamplingRate; 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static audio_format_t gPrevInFormat; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static int gPrevInChannelCount; 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static sp<IAudioPolicyService> gAudioPolicyService; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mapping between stream types and outputs 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static DefaultKeyedVector<audio_stream_type_t, audio_io_handle_t> gStreamOutputMap; 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // list of output descriptors containing cached parameters 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (sampling rate, framecount, channel count...) 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs; 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; // namespace android 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /*ANDROID_AUDIOSYSTEM_H_*/ 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)