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 201ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <hardware/audio_effect.h> 21baac183f3808d7b68f184647a97bd381620415feEric Laurent#include <media/AudioPolicy.h> 221ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <media/IAudioFlingerClient.h> 23b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent#include <media/IAudioPolicyServiceClient.h> 2464760240f931714858a59c1579f07264d7182ba2Dima Zavin#include <system/audio.h> 257394a4f358fa9908a9f0a7c954b65c399f4268e6Dima Zavin#include <system/audio_policy.h> 261ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <utils/Errors.h> 271ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <utils/Mutex.h> 28db5cb14318bb24cd6ea14ff7ceea0d5e1f83d903Dima Zavin 2989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectnamespace android { 3089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projecttypedef void (*audio_error_callback)(status_t err); 32c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 331ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kastenclass IAudioFlinger; 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 5872ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten static status_t setStreamVolume(audio_stream_type_t stream, float value, 5972ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten audio_io_handle_t output); 6072ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten static status_t getStreamVolume(audio_stream_type_t stream, float* volume, 6172ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten audio_io_handle_t output); 62c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 63c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute stream 64fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten static status_t setStreamMute(audio_stream_type_t stream, bool mute); 65fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten static status_t getStreamMute(audio_stream_type_t stream, bool* mute); 6689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 67f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten // set audio mode in audio hardware 68f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten static status_t setMode(audio_mode_t mode); 6989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 70272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // returns true in *state if tracks are active on the specified stream or have been active 71eda6c364c253ba97ee45a3adeb8c2b45db1f81dbEric Laurent // in the past inPastMs milliseconds 726a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs); 73272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // returns true in *state if tracks are active for what qualifies as remote playback 74272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // on the specified stream or have been active in the past inPastMs milliseconds. Remote 75272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // playback isn't mutually exclusive with local playback. 76272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state, 776a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten uint32_t inPastMs); 78d7086030fcf731e4bcef6c033cc6418cd04e6b91Jean-Michel Trivi // returns true in *state if a recorder is currently recording with the specified source 79d7086030fcf731e4bcef6c033cc6418cd04e6b91Jean-Michel Trivi static status_t isSourceActive(audio_source_t source, bool *state); 8089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 81c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get audio hardware parameters. The function accepts a list of parameters 82c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // key value pairs in the form: key1=value1;key2=value2;... 83c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // Some keys are reserved for standard parameters (See AudioParameter class). 84c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten // The versions with audio_io_handle_t are intended for internal media framework use only. 85c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs); 86c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static String8 getParameters(audio_io_handle_t ioHandle, const String8& keys); 87c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten // The versions without audio_io_handle_t are intended for JNI. 88c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten static status_t setParameters(const String8& keyValuePairs); 89c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten static String8 getParameters(const String8& keys); 90c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 9189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static void setErrorCallback(audio_error_callback cb); 9289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // helper function to obtain AudioFlinger service handle 940ebd5f95b68a3a5c9e5509f21938c9e51e74d71bEric Laurent static const sp<IAudioFlinger> get_audio_flinger(); 9589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static float linearToLog(int volume); 9789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static int logToLinear(float volume); 9889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 99f94006ca0f30c27868c284e553f57bf467ae92bcGlenn Kasten // Returned samplingRate and frameCount output values are guaranteed 100f94006ca0f30c27868c284e553f57bf467ae92bcGlenn Kasten // to be non-zero if status == NO_ERROR 1013b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten static status_t getOutputSamplingRate(uint32_t* samplingRate, 1026a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 103e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten static status_t getOutputFrameCount(size_t* frameCount, 1046a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 10585ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static status_t getOutputLatency(uint32_t* latency, 1066a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 1071a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent static status_t getSamplingRate(audio_io_handle_t output, 1083b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t* samplingRate); 1091a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent // returns the number of frames per audio HAL write buffer. Corresponds to 110665470b36f202bcc8ee2f7417f68fd2608dd07c1Eric Laurent // audio_stream->get_buffer_size()/audio_stream_out_frame_size() 1111a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent static status_t getFrameCount(audio_io_handle_t output, 112e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t* frameCount); 1131a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent // returns the audio output stream latency in ms. Corresponds to 1141a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent // audio_stream_out->get_latency() 1151a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent static status_t getLatency(audio_io_handle_t output, 1161a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent uint32_t* latency); 117c813985abd8ba61e999b3505f6a332574f87a1beAndreas Huber 118b42f318d9733f88c7eb9bedfd33b086b8ea5dff5Glenn Kasten // return status NO_ERROR implies *buffSize > 0 119dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 120dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten audio_channel_mask_t channelMask, size_t* buffSize); 12189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 122f0ee6f4055e26fb35d9c526a596668a4dc9da5baEric Laurent static status_t setVoiceVolume(float volume); 123c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 124342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // return the number of audio frames written by AudioFlinger to audio HAL and 1250ed19594452c901c3c8665d06610fffe46895d06Glenn Kasten // audio dsp to DAC since the specified output I/O handle has exited standby. 126342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // returned status (from utils/Errors.h) can be: 127342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data 128342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - INVALID_OPERATION: Not supported on current hardware platform 129342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - BAD_VALUE: invalid parameter 130342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // NOTE: this feature is not supported on all hardware platforms and it is 131342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // necessary to check returned status before using the returned values. 132ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald static status_t getRenderPosition(audio_io_handle_t output, 133377b2ec9a2885f9b6405b07ba900a9e3f4349c38Kévin PETIT uint32_t *halFrames, 1340ed19594452c901c3c8665d06610fffe46895d06Glenn Kasten uint32_t *dspFrames); 135342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent 136bf04a5d7f287fc712e0ed91849dc85c90c1e182dGlenn Kasten // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid 1375f972c031d4061f4f037c9fda1ea4bd9b6a756cdGlenn Kasten static uint32_t getInputFramesLost(audio_io_handle_t ioHandle); 138be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 139de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent // Allocate a new unique ID for use as an audio session ID or I/O handle. 140de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead. 141de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent // FIXME If AudioFlinger were to ever exhaust the unique ID namespace, 142de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent // this method could fail by returning either AUDIO_UNIQUE_ID_ALLOCATE 143de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent // or an unspecified existing unique ID. 144de3f8392fbf380ba6f09d009b00d7172477389a2Eric Laurent static audio_unique_id_t newAudioUniqueId(); 14585d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten 146d457c970c8d08519cd77280a90b61ae1e342cfe3Marco Nelissen static void acquireAudioSessionId(int audioSession, pid_t pid); 147d457c970c8d08519cd77280a90b61ae1e342cfe3Marco Nelissen static void releaseAudioSessionId(int audioSession, pid_t pid); 148c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 14993c3d41bdb15e39dac0faea9c5b60f1637cd477cEric Laurent // Get the HW synchronization source used for an audio session. 15093c3d41bdb15e39dac0faea9c5b60f1637cd477cEric Laurent // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs 15193c3d41bdb15e39dac0faea9c5b60f1637cd477cEric Laurent // or no HW sync source is used. 15293c3d41bdb15e39dac0faea9c5b60f1637cd477cEric Laurent static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId); 15393c3d41bdb15e39dac0faea9c5b60f1637cd477cEric Laurent 154c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // types of io configuration change events received with ioConfigChanged() 155c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent enum io_config_event { 156c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_OPENED, 157c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CLOSED, 158c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CONFIG_CHANGED, 159c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_OPENED, 160c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CLOSED, 161c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CONFIG_CHANGED, 162c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent STREAM_CONFIG_CHANGED, 163c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent NUM_CONFIG_EVENTS 164c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 165c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 16685ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // audio output descriptor used to cache output configurations in client process to avoid 16785ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // frequent calls through IAudioFlinger 168c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent class OutputDescriptor { 169c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 170c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OutputDescriptor() 1716d238e5ecb4c4266bc865a067072a30187e55f97Glenn Kasten : samplingRate(0), format(AUDIO_FORMAT_DEFAULT), channelMask(0), frameCount(0), latency(0) 1726d238e5ecb4c4266bc865a067072a30187e55f97Glenn Kasten {} 173c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 174c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate; 175eced2daaa6c91a3731eef978ce65c6ec319c5e6aGlenn Kasten audio_format_t format; 176fad226abd12435dbcd232f7de396f1a097b2bd5fGlenn Kasten audio_channel_mask_t channelMask; 177c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent size_t frameCount; 178c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t latency; 179c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 180c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 181a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // Events used to synchronize actions between audio sessions. 18285ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until 18385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // playback is complete on another audio session. 184a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // See definitions in MediaSyncEvent.java 185a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent enum sync_event_t { 186a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_SAME = -1, // used internally to indicate restart with same event 187a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_NONE = 0, 188a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_PRESENTATION_COMPLETE, 189a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent 190a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // 191a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ... 192a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // 193a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_CNT, 194a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent }; 195a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent 1962986460984580833161bdaabc7f17da1005a8961Eric Laurent // Timeout for synchronous record start. Prevents from blocking the record thread forever 1972986460984580833161bdaabc7f17da1005a8961Eric Laurent // if the trigger event is not fired. 1982986460984580833161bdaabc7f17da1005a8961Eric Laurent static const uint32_t kSyncRecordStartTimeOutMs = 30000; 1992986460984580833161bdaabc7f17da1005a8961Eric Laurent 200c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 201c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 202c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 20385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state, 20485ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten const char *device_address); 20585ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 20685ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten const char *device_address); 207f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten static status_t setPhoneState(audio_mode_t state); 208fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config); 209fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); 210d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 211d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // Client must successfully hand off the handle reference to AudioFlinger via createTrack(), 212d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // or release it with releaseOutput(). 213fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_io_handle_t getOutput(audio_stream_type_t stream, 214c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate = 0, 21558f30210ea540b6ce5aa6a46330cd3499483cb97Glenn Kasten audio_format_t format = AUDIO_FORMAT_DEFAULT, 216254af180475346b6186b49c297f340c9c4817511Glenn Kasten audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO, 217ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 218ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald const audio_offload_info_t *offloadInfo = NULL); 219e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent static status_t getOutputForAttr(const audio_attributes_t *attr, 220e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_io_handle_t *output, 221e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_session_t session, 222e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_stream_type_t *stream, 2235bd3f38638acab633d181359cc9ec27b80f84d43Jean-Michel Trivi uint32_t samplingRate = 0, 2245bd3f38638acab633d181359cc9ec27b80f84d43Jean-Michel Trivi audio_format_t format = AUDIO_FORMAT_DEFAULT, 2255bd3f38638acab633d181359cc9ec27b80f84d43Jean-Michel Trivi audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO, 2265bd3f38638acab633d181359cc9ec27b80f84d43Jean-Michel Trivi audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 2275bd3f38638acab633d181359cc9ec27b80f84d43Jean-Michel Trivi const audio_offload_info_t *offloadInfo = NULL); 228de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t startOutput(audio_io_handle_t output, 229fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 230e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_session_t session); 231de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t stopOutput(audio_io_handle_t output, 232fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 233e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_session_t session); 234e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent static void releaseOutput(audio_io_handle_t output, 235e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_stream_type_t stream, 236e83b55dc29ca16092ba02f36f55fa6e0e37fd78cEric Laurent audio_session_t session); 237d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 238d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // Client must successfully hand off the handle reference to AudioFlinger via openRecord(), 239d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // or release it with releaseInput(). 240caf7f48a0ef558689d39aafd187c1571ff4128b4Eric Laurent static status_t getInputForAttr(const audio_attributes_t *attr, 241caf7f48a0ef558689d39aafd187c1571ff4128b4Eric Laurent audio_io_handle_t *input, 242caf7f48a0ef558689d39aafd187c1571ff4128b4Eric Laurent audio_session_t session, 2436a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten uint32_t samplingRate, 2446a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_format_t format, 2456a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_channel_mask_t channelMask, 246caf7f48a0ef558689d39aafd187c1571ff4128b4Eric Laurent audio_input_flags_t flags); 247d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 2484dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent static status_t startInput(audio_io_handle_t input, 2494dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent audio_session_t session); 2504dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent static status_t stopInput(audio_io_handle_t input, 2514dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent audio_session_t session); 2524dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent static void releaseInput(audio_io_handle_t input, 2534dc680607181e6a76f4e91a39366c4f5dfb7b03eEric Laurent audio_session_t session); 254fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t initStreamVolume(audio_stream_type_t stream, 255c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMin, 256c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMax); 25783844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent static status_t setStreamVolumeIndex(audio_stream_type_t stream, 25883844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent int index, 25983844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent audio_devices_t device); 26083844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent static status_t getStreamVolumeIndex(audio_stream_type_t stream, 26183844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent int *index, 26283844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent audio_devices_t device); 263c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 264fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static uint32_t getStrategyForStream(audio_stream_type_t stream); 2656374252107fd6539397598195ea6defd5870fafbEric Laurent static audio_devices_t getDevicesForStream(audio_stream_type_t stream); 266de070137f11d346fba77605bd76a44c040a618fcEric Laurent 26758e5aa34f01d663654d8bafad65db1dda42161ffGlenn Kasten static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc); 26858e5aa34f01d663654d8bafad65db1dda42161ffGlenn Kasten static status_t registerEffect(const effect_descriptor_t *desc, 2697c7f10bd4fda9a084e5e7f0eb3a040dfcbf01745Eric Laurent audio_io_handle_t io, 270de070137f11d346fba77605bd76a44c040a618fcEric Laurent uint32_t strategy, 271de070137f11d346fba77605bd76a44c040a618fcEric Laurent int session, 272de070137f11d346fba77605bd76a44c040a618fcEric Laurent int id); 273de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t unregisterEffect(int id); 274db7c079f284f6e91266f6653ae0ec198b1c5006eEric Laurent static status_t setEffectEnabled(int id, bool enabled); 275de070137f11d346fba77605bd76a44c040a618fcEric Laurent 2769f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // clear stream to output mapping cache (gStreamOutputMap) 2779f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // and output configuration cache (gOutputs) 2789f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent static void clearAudioConfigCache(); 2799f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent 2800ebd5f95b68a3a5c9e5509f21938c9e51e74d71bEric Laurent static const sp<IAudioPolicyService> get_audio_policy_service(); 281c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 282cc0f1cfb69ce8b8985fc2c0984847a06a13ad22dGlenn Kasten // helpers for android.media.AudioManager.getProperty(), see description there for meaning 2833b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten static uint32_t getPrimaryOutputSamplingRate(); 284e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten static size_t getPrimaryOutputFrameCount(); 285cc0f1cfb69ce8b8985fc2c0984847a06a13ad22dGlenn Kasten 2864182c4e2a07e2441fcd5c22eaff0ddfe7f826f61Glenn Kasten static status_t setLowRamDevice(bool isLowRamDevice); 2874182c4e2a07e2441fcd5c22eaff0ddfe7f826f61Glenn Kasten 288ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald // Check if hw offload is possible for given format, stream type, sample rate, 289ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald // bit rate, duration, video and streaming or offload property is enabled 290ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald static bool isOffloadSupported(const audio_offload_info_t& info); 291ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald 29246291616486979986cba3ab83e894728ef53063fEric Laurent // check presence of audio flinger service. 29346291616486979986cba3ab83e894728ef53063fEric Laurent // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise 29446291616486979986cba3ab83e894728ef53063fEric Laurent static status_t checkAudioFlinger(); 295203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 296203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* List available audio ports and their attributes */ 297203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t listAudioPorts(audio_port_role_t role, 298203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent audio_port_type_t type, 299203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *num_ports, 300203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent struct audio_port *ports, 301203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *generation); 302203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 303203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Get attributes for a given audio port */ 304203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t getAudioPort(struct audio_port *port); 305203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 306203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Create an audio patch between several source and sink ports */ 307203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t createAudioPatch(const struct audio_patch *patch, 308203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent audio_patch_handle_t *handle); 309203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 310203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Release an audio patch */ 311203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t releaseAudioPatch(audio_patch_handle_t handle); 312203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 313203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* List existing audio patches */ 314203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t listAudioPatches(unsigned int *num_patches, 315203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent struct audio_patch *patches, 316203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *generation); 317203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Set audio port configuration */ 318203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t setAudioPortConfig(const struct audio_port_config *config); 319203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 320df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent 321df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent static status_t acquireSoundTriggerSession(audio_session_t *session, 322df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent audio_io_handle_t *ioHandle, 323df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent audio_devices_t *device); 324df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent static status_t releaseSoundTriggerSession(audio_session_t session); 325df3dc7e2fe6c639529b70e3f3a7d2bf0f4c6e871Eric Laurent 326bb6c9a05840d924b502ce0f1868fca4881ada1edEric Laurent static audio_mode_t getPhoneState(); 327bb6c9a05840d924b502ce0f1868fca4881ada1edEric Laurent 328baac183f3808d7b68f184647a97bd381620415feEric Laurent static status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration); 329baac183f3808d7b68f184647a97bd381620415feEric Laurent 33089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // ---------------------------------------------------------------------------- 33189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 332b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent class AudioPortCallback : public RefBase 333b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent { 334b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent public: 335b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 336b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent AudioPortCallback() {} 337b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual ~AudioPortCallback() {} 338b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 339b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual void onAudioPortListUpdate() = 0; 340b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual void onAudioPatchListUpdate() = 0; 341b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual void onServiceDied() = 0; 342b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 343b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent }; 344b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 345b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent static void setAudioPortCallback(sp<AudioPortCallback> callBack); 346b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 34789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectprivate: 34889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 34989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient 35089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project { 35189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project public: 352c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioFlingerClient() { 35389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 354c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 35589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // DeathRecipient 35689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project virtual void binderDied(const wp<IBinder>& who); 357c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 35889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // IAudioFlingerClient 359c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 360c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // indicate a change in the configuration of an output or input: keeps the cached 361b81cc8c6f3eec9edb255ea99b6a6f243585b1e38Glenn Kasten // values for output/input parameters up-to-date in client process 362b81cc8c6f3eec9edb255ea99b6a6f243585b1e38Glenn Kasten virtual void ioConfigChanged(int event, audio_io_handle_t ioHandle, const void *param2); 36389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project }; 36489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 365b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent class AudioPolicyServiceClient: public IBinder::DeathRecipient, 366b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent public BnAudioPolicyServiceClient 367c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent { 368c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 369c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioPolicyServiceClient() { 370c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 37189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 372c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // DeathRecipient 373c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent virtual void binderDied(const wp<IBinder>& who); 374b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 375b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent // IAudioPolicyServiceClient 376b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual void onAudioPortListUpdate(); 377b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent virtual void onAudioPatchListUpdate(); 378c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 379c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 380c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioFlingerClient> gAudioFlingerClient; 381c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient; 38289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project friend class AudioFlingerClient; 383c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent friend class AudioPolicyServiceClient; 38489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 385f6778fd0c72ab54328f0e9f5ecf0017b73e99dd8Eric Laurent static Mutex gLock; // protects gAudioFlinger and gAudioErrorCallback, 386f6778fd0c72ab54328f0e9f5ecf0017b73e99dd8Eric Laurent static Mutex gLockCache; // protects gOutputs, gPrevInSamplingRate, gPrevInFormat, 387f6778fd0c72ab54328f0e9f5ecf0017b73e99dd8Eric Laurent // gPrevInChannelMask and gInBuffSize 388f6778fd0c72ab54328f0e9f5ecf0017b73e99dd8Eric Laurent static Mutex gLockAPS; // protects gAudioPolicyService and gAudioPolicyServiceClient 389f6778fd0c72ab54328f0e9f5ecf0017b73e99dd8Eric Laurent static Mutex gLockAPC; // protects gAudioPortCallback 39089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static sp<IAudioFlinger> gAudioFlinger; 39189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static audio_error_callback gAudioErrorCallback; 392c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 39389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static size_t gInBuffSize; 39489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // previous parameters for recording buffer size queries 39589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static uint32_t gPrevInSamplingRate; 39658f30210ea540b6ce5aa6a46330cd3499483cb97Glenn Kasten static audio_format_t gPrevInFormat; 397dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten static audio_channel_mask_t gPrevInChannelMask; 39889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 399c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<IAudioPolicyService> gAudioPolicyService; 400c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 4019f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // list of output descriptors containing cached parameters 4029f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // (sampling rate, framecount, channel count...) 403c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs; 404b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent 405b52c152d553556b2d227ffc943489de0c60b4b02Eric Laurent static sp<AudioPortCallback> gAudioPortCallback; 406c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent}; 407c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 40889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project}; // namespace android 40989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 41089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#endif /*ANDROID_AUDIOSYSTEM_H_*/ 411