AudioSystem.h revision fce7a473248381cc83a01855f92581077d3c9ee2
189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project/* 289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * 489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * you may not use this file except in compliance with the License. 689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * You may obtain a copy of the License at 789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * 889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * 1089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 1189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 1289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * See the License for the specific language governing permissions and 1489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * limitations under the License. 1589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project */ 1689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#ifndef ANDROID_AUDIOSYSTEM_H_ 1889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#define ANDROID_AUDIOSYSTEM_H_ 1989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 2089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <utils/RefBase.h> 2189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <utils/threads.h> 2289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <media/IAudioFlinger.h> 2389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 24fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin#include <hardware/audio.h> 25fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin#include <hardware/audio_policy.h> 26fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin 27db5cb14318bb24cd6ea14ff7ceea0d5e1f83d903Dima Zavin/* XXX: Should be include by all the users instead */ 28db5cb14318bb24cd6ea14ff7ceea0d5e1f83d903Dima Zavin#include <media/AudioParameter.h> 29db5cb14318bb24cd6ea14ff7ceea0d5e1f83d903Dima Zavin 3089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectnamespace android { 3189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projecttypedef void (*audio_error_callback)(status_t err); 33c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 34c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentclass IAudioPolicyService; 35c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentclass String8; 3689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectclass AudioSystem 3889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 3989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectpublic: 4089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 4189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project /* These are static methods to control the system-wide AudioFlinger 4289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * only privileged processes can have access to them 4389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project */ 4489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 45c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute microphone 4689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t muteMicrophone(bool state); 4789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t isMicrophoneMuted(bool *state); 4889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 49c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get master volume 5089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t setMasterVolume(float value); 5189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t getMasterVolume(float* volume); 524bcae82f9b07d1a39956c45a6f5bec0b696c4dd1Glenn Kasten 53c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute audio outputs 54c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setMasterMute(bool mute); 5589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t getMasterMute(bool* mute); 5689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 57c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get stream volume on specified output 58fa2877b9ea48baed934b866d2ab3658b69c4c869Eric Laurent static status_t setStreamVolume(int stream, float value, int output); 59fa2877b9ea48baed934b866d2ab3658b69c4c869Eric Laurent static status_t getStreamVolume(int stream, float* volume, int output); 60c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 61c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute stream 6289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t setStreamMute(int stream, bool mute); 6389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t getStreamMute(int stream, bool* mute); 6489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 65fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin // set audio mode in audio hardware (see audio_mode_t) 6689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t setMode(int mode); 6789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 68eda6c364c253ba97ee45a3adeb8c2b45db1f81dbEric Laurent // returns true in *state if tracks are active on the specified stream or has been active 69eda6c364c253ba97ee45a3adeb8c2b45db1f81dbEric Laurent // in the past inPastMs milliseconds 70eda6c364c253ba97ee45a3adeb8c2b45db1f81dbEric Laurent static status_t isStreamActive(int stream, bool *state, uint32_t inPastMs = 0); 7189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 72c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get audio hardware parameters. The function accepts a list of parameters 73c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // key value pairs in the form: key1=value1;key2=value2;... 74c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // Some keys are reserved for standard parameters (See AudioParameter class). 75c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs); 76c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static String8 getParameters(audio_io_handle_t ioHandle, const String8& keys); 77c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 7889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static void setErrorCallback(audio_error_callback cb); 7989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 8089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // helper function to obtain AudioFlinger service handle 8189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static const sp<IAudioFlinger>& get_audio_flinger(); 8289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 8389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static float linearToLog(int volume); 8489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static int logToLinear(float volume); 8589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 86fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t getOutputSamplingRate(int* samplingRate, int stream = AUDIO_STREAM_DEFAULT); 87fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t getOutputFrameCount(int* frameCount, int stream = AUDIO_STREAM_DEFAULT); 88fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t getOutputLatency(uint32_t* latency, int stream = AUDIO_STREAM_DEFAULT); 8989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static bool routedToA2dpOutput(int streamType); 91c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 92c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount, 9389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t* buffSize); 9489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 95f0ee6f4055e26fb35d9c526a596668a4dc9da5baEric Laurent static status_t setVoiceVolume(float volume); 96c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 97342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // return the number of audio frames written by AudioFlinger to audio HAL and 984bcae82f9b07d1a39956c45a6f5bec0b696c4dd1Glenn Kasten // audio dsp to DAC since the output on which the specified stream is playing 99342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // has exited standby. 100342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // returned status (from utils/Errors.h) can be: 101342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data 102342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - INVALID_OPERATION: Not supported on current hardware platform 103342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - BAD_VALUE: invalid parameter 104342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // NOTE: this feature is not supported on all hardware platforms and it is 105342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // necessary to check returned status before using the returned values. 106fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int stream = AUDIO_STREAM_DEFAULT); 107342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent 10805bca2fde53bfe3063d2a0a877f2b6bfdd6052cfEric Laurent static unsigned int getInputFramesLost(audio_io_handle_t ioHandle); 109be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 110be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent static int newAudioSessionId(); 111c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 112c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // types of io configuration change events received with ioConfigChanged() 113c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent enum io_config_event { 114c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_OPENED, 115c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CLOSED, 116c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CONFIG_CHANGED, 117c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_OPENED, 118c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CLOSED, 119c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CONFIG_CHANGED, 120c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent STREAM_CONFIG_CHANGED, 121c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent NUM_CONFIG_EVENTS 122c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 123c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 124c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // audio output descritor used to cache output configurations in client process to avoid frequent calls 125c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // through IAudioFlinger 126c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent class OutputDescriptor { 127c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 128c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OutputDescriptor() 129c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent : samplingRate(0), format(0), channels(0), frameCount(0), latency(0) {} 130c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 131c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate; 132c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int32_t format; 133c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int32_t channels; 134c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent size_t frameCount; 135c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t latency; 136c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 137c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 138c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 139c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 140c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 141fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state, const char *device_address); 142fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, const char *device_address); 143c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setPhoneState(int state); 144c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setRingerMode(uint32_t mode, uint32_t mask); 145fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config); 146fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); 147fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_io_handle_t getOutput(audio_stream_type_t stream, 148c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate = 0, 149fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin uint32_t format = AUDIO_FORMAT_DEFAULT, 150fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin uint32_t channels = AUDIO_CHANNEL_OUT_STEREO, 151fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_policy_output_flags_t flags = AUDIO_POLICY_OUTPUT_FLAG_INDIRECT); 152de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t startOutput(audio_io_handle_t output, 153fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 154de070137f11d346fba77605bd76a44c040a618fcEric Laurent int session = 0); 155de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t stopOutput(audio_io_handle_t output, 156fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 157de070137f11d346fba77605bd76a44c040a618fcEric Laurent int session = 0); 158c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static void releaseOutput(audio_io_handle_t output); 159c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static audio_io_handle_t getInput(int inputSource, 160c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate = 0, 161fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin uint32_t format = AUDIO_FORMAT_DEFAULT, 162fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin uint32_t channels = AUDIO_CHANNEL_IN_MONO, 163fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_in_acoustics_t acoustics = (audio_in_acoustics_t)0); 164c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t startInput(audio_io_handle_t input); 165c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t stopInput(audio_io_handle_t input); 166c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static void releaseInput(audio_io_handle_t input); 167fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t initStreamVolume(audio_stream_type_t stream, 168c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMin, 169c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMax); 170fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t setStreamVolumeIndex(audio_stream_type_t stream, int index); 171fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t getStreamVolumeIndex(audio_stream_type_t stream, int *index); 172c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 173fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static uint32_t getStrategyForStream(audio_stream_type_t stream); 174fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static uint32_t getDevicesForStream(audio_stream_type_t stream); 175de070137f11d346fba77605bd76a44c040a618fcEric Laurent 176de070137f11d346fba77605bd76a44c040a618fcEric Laurent static audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc); 177de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t registerEffect(effect_descriptor_t *desc, 178de070137f11d346fba77605bd76a44c040a618fcEric Laurent audio_io_handle_t output, 179de070137f11d346fba77605bd76a44c040a618fcEric Laurent uint32_t strategy, 180de070137f11d346fba77605bd76a44c040a618fcEric Laurent int session, 181de070137f11d346fba77605bd76a44c040a618fcEric Laurent int id); 182de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t unregisterEffect(int id); 183de070137f11d346fba77605bd76a44c040a618fcEric Laurent 184c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static const sp<IAudioPolicyService>& get_audio_policy_service(); 185c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 18689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // ---------------------------------------------------------------------------- 18789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 18889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectprivate: 18989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 19089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient 19189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project { 19289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project public: 193c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioFlingerClient() { 19489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 195c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 19689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // DeathRecipient 19789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project virtual void binderDied(const wp<IBinder>& who); 198c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 19989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // IAudioFlingerClient 200c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 201c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // indicate a change in the configuration of an output or input: keeps the cached 202c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // values for output/input parameters upto date in client process 203fa2877b9ea48baed934b866d2ab3658b69c4c869Eric Laurent virtual void ioConfigChanged(int event, int ioHandle, void *param2); 20489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project }; 20589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 206c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent class AudioPolicyServiceClient: public IBinder::DeathRecipient 207c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent { 208c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 209c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioPolicyServiceClient() { 210c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 21189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 212c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // DeathRecipient 213c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent virtual void binderDied(const wp<IBinder>& who); 214c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 215c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 216c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioFlingerClient> gAudioFlingerClient; 217c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient; 21889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project friend class AudioFlingerClient; 219c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent friend class AudioPolicyServiceClient; 22089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 22189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static Mutex gLock; 22289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static sp<IAudioFlinger> gAudioFlinger; 22389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static audio_error_callback gAudioErrorCallback; 224c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 22589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static size_t gInBuffSize; 22689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // previous parameters for recording buffer size queries 22789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static uint32_t gPrevInSamplingRate; 22889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static int gPrevInFormat; 22989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static int gPrevInChannelCount; 23089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 231c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<IAudioPolicyService> gAudioPolicyService; 232c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 233c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mapping between stream types and outputs 234c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static DefaultKeyedVector<int, audio_io_handle_t> gStreamOutputMap; 235c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // list of output descritor containing cached parameters (sampling rate, framecount, channel count...) 236c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs; 237c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent}; 238c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 23989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project}; // namespace android 24089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 24189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#endif /*ANDROID_AUDIOSYSTEM_H_*/ 242