AudioSystem.h revision 203b1a18a806e2c56c701aac49cda963bccfad5b
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> 211ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <media/IAudioFlingerClient.h> 2264760240f931714858a59c1579f07264d7182ba2Dima Zavin#include <system/audio.h> 237394a4f358fa9908a9f0a7c954b65c399f4268e6Dima Zavin#include <system/audio_policy.h> 241ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <utils/Errors.h> 251ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kasten#include <utils/Mutex.h> 26db5cb14318bb24cd6ea14ff7ceea0d5e1f83d903Dima Zavin 2789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectnamespace android { 2889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 2989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projecttypedef void (*audio_error_callback)(status_t err); 30c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 311ab85ec401801ef9a9184650d0f5a1639b45eeb9Glenn Kastenclass IAudioFlinger; 32c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentclass IAudioPolicyService; 33c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentclass String8; 3489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectclass AudioSystem 3689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 3789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectpublic: 3889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project /* These are static methods to control the system-wide AudioFlinger 4089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project * only privileged processes can have access to them 4189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project */ 4289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 43c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute microphone 4489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t muteMicrophone(bool state); 4589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t isMicrophoneMuted(bool *state); 4689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 47c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get master volume 4889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t setMasterVolume(float value); 4989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t getMasterVolume(float* volume); 504bcae82f9b07d1a39956c45a6f5bec0b696c4dd1Glenn Kasten 51c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute audio outputs 52c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setMasterMute(bool mute); 5389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static status_t getMasterMute(bool* mute); 5489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 55c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get stream volume on specified output 5672ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten static status_t setStreamVolume(audio_stream_type_t stream, float value, 5772ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten audio_io_handle_t output); 5872ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten static status_t getStreamVolume(audio_stream_type_t stream, float* volume, 5972ef00de10fa95bfcb948ed88ab9b7a177ed0b48Glenn Kasten audio_io_handle_t output); 60c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 61c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // mute/unmute stream 62fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten static status_t setStreamMute(audio_stream_type_t stream, bool mute); 63fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten static status_t getStreamMute(audio_stream_type_t stream, bool* mute); 6489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 65f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten // set audio mode in audio hardware 66f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten static status_t setMode(audio_mode_t mode); 6789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 68272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // returns true in *state if tracks are active on the specified stream or have been active 69eda6c364c253ba97ee45a3adeb8c2b45db1f81dbEric Laurent // in the past inPastMs milliseconds 706a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs); 71272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // returns true in *state if tracks are active for what qualifies as remote playback 72272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // on the specified stream or have been active in the past inPastMs milliseconds. Remote 73272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi // playback isn't mutually exclusive with local playback. 74272ab546940054ad7991bef4b3a36f15175721cdJean-Michel Trivi static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state, 756a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten uint32_t inPastMs); 76d7086030fcf731e4bcef6c033cc6418cd04e6b91Jean-Michel Trivi // returns true in *state if a recorder is currently recording with the specified source 77d7086030fcf731e4bcef6c033cc6418cd04e6b91Jean-Michel Trivi static status_t isSourceActive(audio_source_t source, bool *state); 7889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 79c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // set/get audio hardware parameters. The function accepts a list of parameters 80c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // key value pairs in the form: key1=value1;key2=value2;... 81c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // Some keys are reserved for standard parameters (See AudioParameter class). 82c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten // The versions with audio_io_handle_t are intended for internal media framework use only. 83c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs); 84c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static String8 getParameters(audio_io_handle_t ioHandle, const String8& keys); 85c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten // The versions without audio_io_handle_t are intended for JNI. 86c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten static status_t setParameters(const String8& keyValuePairs); 87c23885ebb142b9da31543789ecc3f7cf7111bc67Glenn Kasten static String8 getParameters(const String8& keys); 88c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 8989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static void setErrorCallback(audio_error_callback cb); 9089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // helper function to obtain AudioFlinger service handle 9289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static const sp<IAudioFlinger>& get_audio_flinger(); 9389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static float linearToLog(int volume); 9589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static int logToLinear(float volume); 9689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 97f94006ca0f30c27868c284e553f57bf467ae92bcGlenn Kasten // Returned samplingRate and frameCount output values are guaranteed 98f94006ca0f30c27868c284e553f57bf467ae92bcGlenn Kasten // to be non-zero if status == NO_ERROR 993b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten static status_t getOutputSamplingRate(uint32_t* samplingRate, 1006a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 101e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten static status_t getOutputFrameCount(size_t* frameCount, 1026a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 10385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static status_t getOutputLatency(uint32_t* latency, 1046a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_stream_type_t stream); 1051a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent static status_t getSamplingRate(audio_io_handle_t output, 1061a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent audio_stream_type_t streamType, 1073b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t* samplingRate); 1081a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent // returns the number of frames per audio HAL write buffer. Corresponds to 1091a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent // audio_stream->get_buffer_size()/audio_stream_frame_size() 1101a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent static status_t getFrameCount(audio_io_handle_t output, 1111a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent audio_stream_type_t stream, 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 118fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten static bool routedToA2dpOutput(audio_stream_type_t streamType); 119c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 120b42f318d9733f88c7eb9bedfd33b086b8ea5dff5Glenn Kasten // return status NO_ERROR implies *buffSize > 0 121dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format, 122dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten audio_channel_mask_t channelMask, size_t* buffSize); 12389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 124f0ee6f4055e26fb35d9c526a596668a4dc9da5baEric Laurent static status_t setVoiceVolume(float volume); 125c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 126342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // return the number of audio frames written by AudioFlinger to audio HAL and 1270ed19594452c901c3c8665d06610fffe46895d06Glenn Kasten // audio dsp to DAC since the specified output I/O handle has exited standby. 128342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // returned status (from utils/Errors.h) can be: 129342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data 130342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - INVALID_OPERATION: Not supported on current hardware platform 131342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // - BAD_VALUE: invalid parameter 132342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // NOTE: this feature is not supported on all hardware platforms and it is 133342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent // necessary to check returned status before using the returned values. 134ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald static status_t getRenderPosition(audio_io_handle_t output, 135377b2ec9a2885f9b6405b07ba900a9e3f4349c38Kévin PETIT uint32_t *halFrames, 1360ed19594452c901c3c8665d06610fffe46895d06Glenn Kasten uint32_t *dspFrames); 137342e9cf388cceb807def720e40e8b0a217f4bcaaEric Laurent 138bf04a5d7f287fc712e0ed91849dc85c90c1e182dGlenn Kasten // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid 1395f972c031d4061f4f037c9fda1ea4bd9b6a756cdGlenn Kasten static uint32_t getInputFramesLost(audio_io_handle_t ioHandle); 140be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 14185d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten // Allocate a new audio session ID and return that new ID. 14285d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten // If unable to contact AudioFlinger, returns AUDIO_SESSION_ALLOCATE instead. 14385d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten // FIXME If AudioFlinger were to ever exhaust the session ID namespace, 14485d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten // this method could fail by returning either AUDIO_SESSION_ALLOCATE 14585d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten // or an unspecified existing session ID. 146be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent static int newAudioSessionId(); 14785d109a4b0eddd76a8c5cee170bc2bcc99d00118Glenn Kasten 148d457c970c8d08519cd77280a90b61ae1e342cfe3Marco Nelissen static void acquireAudioSessionId(int audioSession, pid_t pid); 149d457c970c8d08519cd77280a90b61ae1e342cfe3Marco Nelissen static void releaseAudioSessionId(int audioSession, pid_t pid); 150c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 151c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // types of io configuration change events received with ioConfigChanged() 152c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent enum io_config_event { 153c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_OPENED, 154c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CLOSED, 155c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OUTPUT_CONFIG_CHANGED, 156c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_OPENED, 157c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CLOSED, 158c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent INPUT_CONFIG_CHANGED, 159c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent STREAM_CONFIG_CHANGED, 160c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent NUM_CONFIG_EVENTS 161c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 162c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 16385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // audio output descriptor used to cache output configurations in client process to avoid 16485ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // frequent calls through IAudioFlinger 165c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent class OutputDescriptor { 166c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 167c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent OutputDescriptor() 1686d238e5ecb4c4266bc865a067072a30187e55f97Glenn Kasten : samplingRate(0), format(AUDIO_FORMAT_DEFAULT), channelMask(0), frameCount(0), latency(0) 1696d238e5ecb4c4266bc865a067072a30187e55f97Glenn Kasten {} 170c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 171c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate; 172eced2daaa6c91a3731eef978ce65c6ec319c5e6aGlenn Kasten audio_format_t format; 173fad226abd12435dbcd232f7de396f1a097b2bd5fGlenn Kasten audio_channel_mask_t channelMask; 174c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent size_t frameCount; 175c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t latency; 176c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 177c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 178a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // Events used to synchronize actions between audio sessions. 17985ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until 18085ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten // playback is complete on another audio session. 181a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // See definitions in MediaSyncEvent.java 182a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent enum sync_event_t { 183a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_SAME = -1, // used internally to indicate restart with same event 184a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_NONE = 0, 185a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_PRESENTATION_COMPLETE, 186a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent 187a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // 188a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ... 189a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent // 190a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent SYNC_EVENT_CNT, 191a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent }; 192a011e35b22f95f558d81dc9c94b68b1465c4661dEric Laurent 1932986460984580833161bdaabc7f17da1005a8961Eric Laurent // Timeout for synchronous record start. Prevents from blocking the record thread forever 1942986460984580833161bdaabc7f17da1005a8961Eric Laurent // if the trigger event is not fired. 1952986460984580833161bdaabc7f17da1005a8961Eric Laurent static const uint32_t kSyncRecordStartTimeOutMs = 30000; 1962986460984580833161bdaabc7f17da1005a8961Eric Laurent 197c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 198c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 199c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 20085ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state, 20185ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten const char *device_address); 20285ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 20385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten const char *device_address); 204f78aee70d15daf4690de7e7b4983ee68b0d1381dGlenn Kasten static status_t setPhoneState(audio_mode_t state); 205fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config); 206fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage); 207d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 208d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // Client must successfully hand off the handle reference to AudioFlinger via createTrack(), 209d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // or release it with releaseOutput(). 210fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static audio_io_handle_t getOutput(audio_stream_type_t stream, 211c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent uint32_t samplingRate = 0, 21258f30210ea540b6ce5aa6a46330cd3499483cb97Glenn Kasten audio_format_t format = AUDIO_FORMAT_DEFAULT, 213254af180475346b6186b49c297f340c9c4817511Glenn Kasten audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO, 214ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 215ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald const audio_offload_info_t *offloadInfo = NULL); 216d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 217de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t startOutput(audio_io_handle_t output, 218fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 2196a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten int session); 220de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t stopOutput(audio_io_handle_t output, 221fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_stream_type_t stream, 2226a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten int session); 223c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static void releaseOutput(audio_io_handle_t output); 224d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 225d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // Client must successfully hand off the handle reference to AudioFlinger via openRecord(), 226d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten // or release it with releaseInput(). 227eba51fb3a361f67a6a64d5a16eba6084fe27d60eGlenn Kasten static audio_io_handle_t getInput(audio_source_t inputSource, 2286a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten uint32_t samplingRate, 2296a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_format_t format, 2306a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten audio_channel_mask_t channelMask, 2316a5e79733c760d7555aacec53c8bd21e8516c0a1Glenn Kasten int sessionId); 232d631d962a831de8b7614b14d7368eae60c816893Glenn Kasten 233c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t startInput(audio_io_handle_t input); 234c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static status_t stopInput(audio_io_handle_t input); 235c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static void releaseInput(audio_io_handle_t input); 236fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static status_t initStreamVolume(audio_stream_type_t stream, 237c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMin, 238c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int indexMax); 23983844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent static status_t setStreamVolumeIndex(audio_stream_type_t stream, 24083844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent int index, 24183844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent audio_devices_t device); 24283844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent static status_t getStreamVolumeIndex(audio_stream_type_t stream, 24383844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent int *index, 24483844cc2f95dc279015b47fd1e18c7cb4eabe9a1Eric Laurent audio_devices_t device); 245c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 246fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin static uint32_t getStrategyForStream(audio_stream_type_t stream); 2476374252107fd6539397598195ea6defd5870fafbEric Laurent static audio_devices_t getDevicesForStream(audio_stream_type_t stream); 248de070137f11d346fba77605bd76a44c040a618fcEric Laurent 24958e5aa34f01d663654d8bafad65db1dda42161ffGlenn Kasten static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc); 25058e5aa34f01d663654d8bafad65db1dda42161ffGlenn Kasten static status_t registerEffect(const effect_descriptor_t *desc, 2517c7f10bd4fda9a084e5e7f0eb3a040dfcbf01745Eric Laurent audio_io_handle_t io, 252de070137f11d346fba77605bd76a44c040a618fcEric Laurent uint32_t strategy, 253de070137f11d346fba77605bd76a44c040a618fcEric Laurent int session, 254de070137f11d346fba77605bd76a44c040a618fcEric Laurent int id); 255de070137f11d346fba77605bd76a44c040a618fcEric Laurent static status_t unregisterEffect(int id); 256db7c079f284f6e91266f6653ae0ec198b1c5006eEric Laurent static status_t setEffectEnabled(int id, bool enabled); 257de070137f11d346fba77605bd76a44c040a618fcEric Laurent 2589f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // clear stream to output mapping cache (gStreamOutputMap) 2599f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // and output configuration cache (gOutputs) 2609f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent static void clearAudioConfigCache(); 2619f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent 262c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static const sp<IAudioPolicyService>& get_audio_policy_service(); 263c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 264cc0f1cfb69ce8b8985fc2c0984847a06a13ad22dGlenn Kasten // helpers for android.media.AudioManager.getProperty(), see description there for meaning 2653b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten static uint32_t getPrimaryOutputSamplingRate(); 266e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten static size_t getPrimaryOutputFrameCount(); 267cc0f1cfb69ce8b8985fc2c0984847a06a13ad22dGlenn Kasten 2684182c4e2a07e2441fcd5c22eaff0ddfe7f826f61Glenn Kasten static status_t setLowRamDevice(bool isLowRamDevice); 2694182c4e2a07e2441fcd5c22eaff0ddfe7f826f61Glenn Kasten 270ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald // Check if hw offload is possible for given format, stream type, sample rate, 271ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald // bit rate, duration, video and streaming or offload property is enabled 272ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald static bool isOffloadSupported(const audio_offload_info_t& info); 273ad3af3305f024bcbbd55c894a4995e449498e1baRichard Fitzgerald 27446291616486979986cba3ab83e894728ef53063fEric Laurent // check presence of audio flinger service. 27546291616486979986cba3ab83e894728ef53063fEric Laurent // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise 27646291616486979986cba3ab83e894728ef53063fEric Laurent static status_t checkAudioFlinger(); 277203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 278203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* List available audio ports and their attributes */ 279203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t listAudioPorts(audio_port_role_t role, 280203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent audio_port_type_t type, 281203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *num_ports, 282203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent struct audio_port *ports, 283203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *generation); 284203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 285203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Get attributes for a given audio port */ 286203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t getAudioPort(struct audio_port *port); 287203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 288203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Create an audio patch between several source and sink ports */ 289203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t createAudioPatch(const struct audio_patch *patch, 290203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent audio_patch_handle_t *handle); 291203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 292203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Release an audio patch */ 293203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t releaseAudioPatch(audio_patch_handle_t handle); 294203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 295203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* List existing audio patches */ 296203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t listAudioPatches(unsigned int *num_patches, 297203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent struct audio_patch *patches, 298203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent unsigned int *generation); 299203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent /* Set audio port configuration */ 300203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent static status_t setAudioPortConfig(const struct audio_port_config *config); 301203b1a18a806e2c56c701aac49cda963bccfad5bEric Laurent 30289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // ---------------------------------------------------------------------------- 30389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 30489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectprivate: 30589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 30689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient 30789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project { 30889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project public: 309c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioFlingerClient() { 31089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 311c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 31289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // DeathRecipient 31389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project virtual void binderDied(const wp<IBinder>& who); 314c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 31589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // IAudioFlingerClient 316c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 317c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // indicate a change in the configuration of an output or input: keeps the cached 318b81cc8c6f3eec9edb255ea99b6a6f243585b1e38Glenn Kasten // values for output/input parameters up-to-date in client process 319b81cc8c6f3eec9edb255ea99b6a6f243585b1e38Glenn Kasten virtual void ioConfigChanged(int event, audio_io_handle_t ioHandle, const void *param2); 32089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project }; 32189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 322c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent class AudioPolicyServiceClient: public IBinder::DeathRecipient 323c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent { 324c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent public: 325c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent AudioPolicyServiceClient() { 326c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 32789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 328c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // DeathRecipient 329c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent virtual void binderDied(const wp<IBinder>& who); 330c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent }; 331c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 332c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioFlingerClient> gAudioFlingerClient; 333c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient; 33489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project friend class AudioFlingerClient; 335c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent friend class AudioPolicyServiceClient; 33689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 33789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static Mutex gLock; 33889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static sp<IAudioFlinger> gAudioFlinger; 33989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static audio_error_callback gAudioErrorCallback; 340c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 34189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static size_t gInBuffSize; 34289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // previous parameters for recording buffer size queries 34389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project static uint32_t gPrevInSamplingRate; 34458f30210ea540b6ce5aa6a46330cd3499483cb97Glenn Kasten static audio_format_t gPrevInFormat; 345dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten static audio_channel_mask_t gPrevInChannelMask; 34689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 347c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static sp<IAudioPolicyService> gAudioPolicyService; 348c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 3499f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // list of output descriptors containing cached parameters 3509f6530f53ae9eda43f4e7c1cb30d2379db00aa00Eric Laurent // (sampling rate, framecount, channel count...) 351c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent static DefaultKeyedVector<audio_io_handle_t, OutputDescriptor *> gOutputs; 352c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent}; 353c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 35489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project}; // namespace android 35589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 35689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#endif /*ANDROID_AUDIOSYSTEM_H_*/ 357