AudioSystem.cpp revision be916aa1267e2e6b1c148f51d11bcbbc79cb864c
1f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org/* 2f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * Copyright (C) 2006-2007 The Android Open Source Project 3f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * 4f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * Licensed under the Apache License, Version 2.0 (the "License"); 59862697206250265c6bb37a4186b0a411c78de3bhbono@chromium.org * you may not use this file except in compliance with the License. 6f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * You may obtain a copy of the License at 7f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * 8f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * http://www.apache.org/licenses/LICENSE-2.0 9f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * 10f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * Unless required by applicable law or agreed to in writing, software 11f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * distributed under the License is distributed on an "AS IS" BASIS, 12f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * See the License for the specific language governing permissions and 14f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org * limitations under the License. 15f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org */ 16f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 17f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#define LOG_TAG "AudioSystem" 18f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org//#define LOG_NDEBUG 0 19f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 20f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <utils/Log.h> 21f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <binder/IServiceManager.h> 22f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <media/AudioSystem.h> 23f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <media/IAudioPolicyService.h> 24f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#include <math.h> 25f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 26f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// ---------------------------------------------------------------------------- 27f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// the sim build doesn't have gettid 28f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 29f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#ifndef HAVE_GETTID 30f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org# define gettid getpid 31f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org#endif 32f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 33f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// ---------------------------------------------------------------------------- 34f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 35f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgnamespace android { 36f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 37f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// client singleton for AudioFlinger binder interface 38f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgMutex AudioSystem::gLock; 39f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgsp<IAudioFlinger> AudioSystem::gAudioFlinger; 40f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgsp<AudioSystem::AudioFlingerClient> AudioSystem::gAudioFlingerClient; 41f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgaudio_error_callback AudioSystem::gAudioErrorCallback = NULL; 42f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// Cached values 43f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgDefaultKeyedVector<int, audio_io_handle_t> AudioSystem::gStreamOutputMap(0); 449862697206250265c6bb37a4186b0a411c78de3bhbono@chromium.orgDefaultKeyedVector<audio_io_handle_t, AudioSystem::OutputDescriptor *> AudioSystem::gOutputs(0); 45f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 46f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// Cached values for recording queries 47f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orguint32_t AudioSystem::gPrevInSamplingRate = 16000; 489862697206250265c6bb37a4186b0a411c78de3bhbono@chromium.orgint AudioSystem::gPrevInFormat = AudioSystem::PCM_16_BIT; 49f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgint AudioSystem::gPrevInChannelCount = 1; 50f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgsize_t AudioSystem::gInBuffSize = 0; 51f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 52f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 53f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// establish binder interface to AudioFlinger service 54f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgconst sp<IAudioFlinger>& AudioSystem::get_audio_flinger() 55f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 56f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org Mutex::Autolock _l(gLock); 57f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (gAudioFlinger.get() == 0) { 58f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org sp<IServiceManager> sm = defaultServiceManager(); 59f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org sp<IBinder> binder; 60f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org do { 61f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org binder = sm->getService(String16("media.audio_flinger")); 62f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (binder != 0) 63f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org break; 64f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org LOGW("AudioFlinger not published, waiting..."); 65f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org usleep(500000); // 0.5 s 66f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } while(true); 67f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (gAudioFlingerClient == NULL) { 68f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gAudioFlingerClient = new AudioFlingerClient(); 69f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } else { 70f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (gAudioErrorCallback) { 71f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gAudioErrorCallback(NO_ERROR); 72f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 73f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 74f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org binder->linkToDeath(gAudioFlingerClient); 75f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gAudioFlinger = interface_cast<IAudioFlinger>(binder); 76f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gAudioFlinger->registerClient(gAudioFlingerClient); 77f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 78f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org LOGE_IF(gAudioFlinger==0, "no AudioFlinger!?"); 79f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 80f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return gAudioFlinger; 81f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 82f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 83f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::muteMicrophone(bool state) { 84f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 85f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 86f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return af->setMicMute(state); 87f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 88f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 89f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::isMicrophoneMuted(bool* state) { 90f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 91f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 92f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *state = af->getMicMute(); 93f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 94f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 95f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 96f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setMasterVolume(float value) 97f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 98f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 99f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 100f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org af->setMasterVolume(value); 101f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 102f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 103f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 104f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setMasterMute(bool mute) 105f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 106f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 107f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 108f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org af->setMasterMute(mute); 109f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 110f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 111f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 112f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getMasterVolume(float* volume) 113f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 114f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 115f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 116f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *volume = af->masterVolume(); 117f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 118f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 119f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 120f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getMasterMute(bool* mute) 121f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 122f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 123f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 124f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *mute = af->masterMute(); 125f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 126f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 127f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 128f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setStreamVolume(int stream, float value, int output) 129f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 130f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (uint32_t(stream) >= NUM_STREAM_TYPES) return BAD_VALUE; 131f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 132f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 133f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org af->setStreamVolume(stream, value, output); 134f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 135f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 136f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 137f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setStreamMute(int stream, bool mute) 138f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 139f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (uint32_t(stream) >= NUM_STREAM_TYPES) return BAD_VALUE; 140f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 141f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 142f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org af->setStreamMute(stream, mute); 143f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 144f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 145f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 146f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getStreamVolume(int stream, float* volume, int output) 147f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 148f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (uint32_t(stream) >= NUM_STREAM_TYPES) return BAD_VALUE; 149f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 150f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 151f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *volume = af->streamVolume(stream, output); 152f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 153f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 154f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 155f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getStreamMute(int stream, bool* mute) 156f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 157f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (uint32_t(stream) >= NUM_STREAM_TYPES) return BAD_VALUE; 158f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 159f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 160f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *mute = af->streamMute(stream); 161f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 162f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 163f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 164f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setMode(int mode) 165f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 166f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (mode >= NUM_MODES) return BAD_VALUE; 167f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 168f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 169f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return af->setMode(mode); 170f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 171f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 172f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 173f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::isStreamActive(int stream, bool* state) { 174f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 175f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 176f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *state = af->isStreamActive(stream); 177f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 178f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 179f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 180f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 181f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs) { 182f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 183f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 184f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return af->setParameters(ioHandle, keyValuePairs); 185f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 186f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 187f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgString8 AudioSystem::getParameters(audio_io_handle_t ioHandle, const String8& keys) { 188f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 189f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org String8 result = String8(""); 190f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return result; 191f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 192f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org result = af->getParameters(ioHandle, keys); 193f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return result; 194f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 195f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 196f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// convert volume steps to natural log scale 197f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 198f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// change this value to change volume scaling 199f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatic const float dBPerStep = 0.5f; 200f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org// shouldn't need to touch these 201f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatic const float dBConvert = -dBPerStep * 2.302585093f / 20.0f; 202f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatic const float dBConvertInverse = 1.0f / dBConvert; 203f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 204f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgfloat AudioSystem::linearToLog(int volume) 205f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 206f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // float v = volume ? exp(float(100 - volume) * dBConvert) : 0; 207f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // LOGD("linearToLog(%d)=%f", volume, v); 208f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // return v; 209f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return volume ? exp(float(100 - volume) * dBConvert) : 0; 210f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 211f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 212f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgint AudioSystem::logToLinear(float volume) 213f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 214f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // int v = volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0; 215f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // LOGD("logTolinear(%d)=%f", v, volume); 216f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org // return v; 217f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return volume ? 100 - int(dBConvertInverse * log(volume) + 0.5) : 0; 218f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 219f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 220f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getOutputSamplingRate(int* samplingRate, int streamType) 221f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 222f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org OutputDescriptor *outputDesc; 223f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org audio_io_handle_t output; 224f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 225f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (streamType == DEFAULT) { 226f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org streamType = MUSIC; 227f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 228f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 229f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org output = getOutput((stream_type)streamType); 230f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (output == 0) { 231f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return PERMISSION_DENIED; 232f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 233f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 234f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gLock.lock(); 235f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org outputDesc = AudioSystem::gOutputs.valueFor(output); 236f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (outputDesc == 0) { 237f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org LOGV("getOutputSamplingRate() no output descriptor for output %d in gOutputs", output); 238f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gLock.unlock(); 239f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 240f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (af == 0) return PERMISSION_DENIED; 241f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *samplingRate = af->sampleRate(output); 242f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } else { 243f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org LOGV("getOutputSamplingRate() reading from output desc"); 244f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org *samplingRate = outputDesc->samplingRate; 245f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gLock.unlock(); 246f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 247f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 248f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org LOGV("getOutputSamplingRate() streamType %d, output %d, sampling rate %d", streamType, output, *samplingRate); 249f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 250f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return NO_ERROR; 251f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org} 252f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 253f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.orgstatus_t AudioSystem::getOutputFrameCount(int* frameCount, int streamType) 254f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org{ 255f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org OutputDescriptor *outputDesc; 256f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org audio_io_handle_t output; 257f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 258f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (streamType == DEFAULT) { 259f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org streamType = MUSIC; 260f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 261f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 262f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org output = getOutput((stream_type)streamType); 263f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (output == 0) { 264f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org return PERMISSION_DENIED; 265f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org } 266f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org 267f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org gLock.lock(); 268f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org outputDesc = AudioSystem::gOutputs.valueFor(output); 269f0c4f33a4aa0760ba0e12a254b69d996442c9c5hbono@chromium.org if (outputDesc == 0) { 270 gLock.unlock(); 271 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 272 if (af == 0) return PERMISSION_DENIED; 273 *frameCount = af->frameCount(output); 274 } else { 275 *frameCount = outputDesc->frameCount; 276 gLock.unlock(); 277 } 278 279 LOGV("getOutputFrameCount() streamType %d, output %d, frameCount %d", streamType, output, *frameCount); 280 281 return NO_ERROR; 282} 283 284status_t AudioSystem::getOutputLatency(uint32_t* latency, int streamType) 285{ 286 OutputDescriptor *outputDesc; 287 audio_io_handle_t output; 288 289 if (streamType == DEFAULT) { 290 streamType = MUSIC; 291 } 292 293 output = getOutput((stream_type)streamType); 294 if (output == 0) { 295 return PERMISSION_DENIED; 296 } 297 298 gLock.lock(); 299 outputDesc = AudioSystem::gOutputs.valueFor(output); 300 if (outputDesc == 0) { 301 gLock.unlock(); 302 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 303 if (af == 0) return PERMISSION_DENIED; 304 *latency = af->latency(output); 305 } else { 306 *latency = outputDesc->latency; 307 gLock.unlock(); 308 } 309 310 LOGV("getOutputLatency() streamType %d, output %d, latency %d", streamType, output, *latency); 311 312 return NO_ERROR; 313} 314 315status_t AudioSystem::getInputBufferSize(uint32_t sampleRate, int format, int channelCount, 316 size_t* buffSize) 317{ 318 // Do we have a stale gInBufferSize or are we requesting the input buffer size for new values 319 if ((gInBuffSize == 0) || (sampleRate != gPrevInSamplingRate) || (format != gPrevInFormat) 320 || (channelCount != gPrevInChannelCount)) { 321 // save the request params 322 gPrevInSamplingRate = sampleRate; 323 gPrevInFormat = format; 324 gPrevInChannelCount = channelCount; 325 326 gInBuffSize = 0; 327 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 328 if (af == 0) { 329 return PERMISSION_DENIED; 330 } 331 gInBuffSize = af->getInputBufferSize(sampleRate, format, channelCount); 332 } 333 *buffSize = gInBuffSize; 334 335 return NO_ERROR; 336} 337 338status_t AudioSystem::setVoiceVolume(float value) 339{ 340 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 341 if (af == 0) return PERMISSION_DENIED; 342 return af->setVoiceVolume(value); 343} 344 345status_t AudioSystem::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int stream) 346{ 347 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 348 if (af == 0) return PERMISSION_DENIED; 349 350 if (stream == DEFAULT) { 351 stream = MUSIC; 352 } 353 354 return af->getRenderPosition(halFrames, dspFrames, getOutput((stream_type)stream)); 355} 356 357unsigned int AudioSystem::getInputFramesLost(audio_io_handle_t ioHandle) { 358 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 359 unsigned int result = 0; 360 if (af == 0) return result; 361 if (ioHandle == 0) return result; 362 363 result = af->getInputFramesLost(ioHandle); 364 return result; 365} 366 367int AudioSystem::newAudioSessionId() { 368 const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger(); 369 if (af == 0) return 0; 370 return af->newAudioSessionId(); 371} 372 373// --------------------------------------------------------------------------- 374 375void AudioSystem::AudioFlingerClient::binderDied(const wp<IBinder>& who) { 376 Mutex::Autolock _l(AudioSystem::gLock); 377 378 AudioSystem::gAudioFlinger.clear(); 379 // clear output handles and stream to output map caches 380 AudioSystem::gStreamOutputMap.clear(); 381 AudioSystem::gOutputs.clear(); 382 383 if (gAudioErrorCallback) { 384 gAudioErrorCallback(DEAD_OBJECT); 385 } 386 LOGW("AudioFlinger server died!"); 387} 388 389void AudioSystem::AudioFlingerClient::ioConfigChanged(int event, int ioHandle, void *param2) { 390 LOGV("ioConfigChanged() event %d", event); 391 OutputDescriptor *desc; 392 uint32_t stream; 393 394 if (ioHandle == 0) return; 395 396 Mutex::Autolock _l(AudioSystem::gLock); 397 398 switch (event) { 399 case STREAM_CONFIG_CHANGED: 400 if (param2 == 0) break; 401 stream = *(uint32_t *)param2; 402 LOGV("ioConfigChanged() STREAM_CONFIG_CHANGED stream %d, output %d", stream, ioHandle); 403 if (gStreamOutputMap.indexOfKey(stream) >= 0) { 404 gStreamOutputMap.replaceValueFor(stream, ioHandle); 405 } 406 break; 407 case OUTPUT_OPENED: { 408 if (gOutputs.indexOfKey(ioHandle) >= 0) { 409 LOGV("ioConfigChanged() opening already existing output! %d", ioHandle); 410 break; 411 } 412 if (param2 == 0) break; 413 desc = (OutputDescriptor *)param2; 414 415 OutputDescriptor *outputDesc = new OutputDescriptor(*desc); 416 gOutputs.add(ioHandle, outputDesc); 417 LOGV("ioConfigChanged() new output samplingRate %d, format %d channels %d frameCount %d latency %d", 418 outputDesc->samplingRate, outputDesc->format, outputDesc->channels, outputDesc->frameCount, outputDesc->latency); 419 } break; 420 case OUTPUT_CLOSED: { 421 if (gOutputs.indexOfKey(ioHandle) < 0) { 422 LOGW("ioConfigChanged() closing unknow output! %d", ioHandle); 423 break; 424 } 425 LOGV("ioConfigChanged() output %d closed", ioHandle); 426 427 gOutputs.removeItem(ioHandle); 428 for (int i = gStreamOutputMap.size() - 1; i >= 0 ; i--) { 429 if (gStreamOutputMap.valueAt(i) == ioHandle) { 430 gStreamOutputMap.removeItemsAt(i); 431 } 432 } 433 } break; 434 435 case OUTPUT_CONFIG_CHANGED: { 436 int index = gOutputs.indexOfKey(ioHandle); 437 if (index < 0) { 438 LOGW("ioConfigChanged() modifying unknow output! %d", ioHandle); 439 break; 440 } 441 if (param2 == 0) break; 442 desc = (OutputDescriptor *)param2; 443 444 LOGV("ioConfigChanged() new config for output %d samplingRate %d, format %d channels %d frameCount %d latency %d", 445 ioHandle, desc->samplingRate, desc->format, 446 desc->channels, desc->frameCount, desc->latency); 447 OutputDescriptor *outputDesc = gOutputs.valueAt(index); 448 delete outputDesc; 449 outputDesc = new OutputDescriptor(*desc); 450 gOutputs.replaceValueFor(ioHandle, outputDesc); 451 } break; 452 case INPUT_OPENED: 453 case INPUT_CLOSED: 454 case INPUT_CONFIG_CHANGED: 455 break; 456 457 } 458} 459 460void AudioSystem::setErrorCallback(audio_error_callback cb) { 461 Mutex::Autolock _l(gLock); 462 gAudioErrorCallback = cb; 463} 464 465bool AudioSystem::routedToA2dpOutput(int streamType) { 466 switch(streamType) { 467 case MUSIC: 468 case VOICE_CALL: 469 case BLUETOOTH_SCO: 470 case SYSTEM: 471 return true; 472 default: 473 return false; 474 } 475} 476 477 478// client singleton for AudioPolicyService binder interface 479sp<IAudioPolicyService> AudioSystem::gAudioPolicyService; 480sp<AudioSystem::AudioPolicyServiceClient> AudioSystem::gAudioPolicyServiceClient; 481 482 483// establish binder interface to AudioFlinger service 484const sp<IAudioPolicyService>& AudioSystem::get_audio_policy_service() 485{ 486 gLock.lock(); 487 if (gAudioPolicyService.get() == 0) { 488 sp<IServiceManager> sm = defaultServiceManager(); 489 sp<IBinder> binder; 490 do { 491 binder = sm->getService(String16("media.audio_policy")); 492 if (binder != 0) 493 break; 494 LOGW("AudioPolicyService not published, waiting..."); 495 usleep(500000); // 0.5 s 496 } while(true); 497 if (gAudioPolicyServiceClient == NULL) { 498 gAudioPolicyServiceClient = new AudioPolicyServiceClient(); 499 } 500 binder->linkToDeath(gAudioPolicyServiceClient); 501 gAudioPolicyService = interface_cast<IAudioPolicyService>(binder); 502 gLock.unlock(); 503 } else { 504 gLock.unlock(); 505 } 506 return gAudioPolicyService; 507} 508 509status_t AudioSystem::setDeviceConnectionState(audio_devices device, 510 device_connection_state state, 511 const char *device_address) 512{ 513 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 514 if (aps == 0) return PERMISSION_DENIED; 515 516 return aps->setDeviceConnectionState(device, state, device_address); 517} 518 519AudioSystem::device_connection_state AudioSystem::getDeviceConnectionState(audio_devices device, 520 const char *device_address) 521{ 522 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 523 if (aps == 0) return DEVICE_STATE_UNAVAILABLE; 524 525 return aps->getDeviceConnectionState(device, device_address); 526} 527 528status_t AudioSystem::setPhoneState(int state) 529{ 530 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 531 if (aps == 0) return PERMISSION_DENIED; 532 533 return aps->setPhoneState(state); 534} 535 536status_t AudioSystem::setRingerMode(uint32_t mode, uint32_t mask) 537{ 538 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 539 if (aps == 0) return PERMISSION_DENIED; 540 return aps->setRingerMode(mode, mask); 541} 542 543status_t AudioSystem::setForceUse(force_use usage, forced_config config) 544{ 545 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 546 if (aps == 0) return PERMISSION_DENIED; 547 return aps->setForceUse(usage, config); 548} 549 550AudioSystem::forced_config AudioSystem::getForceUse(force_use usage) 551{ 552 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 553 if (aps == 0) return FORCE_NONE; 554 return aps->getForceUse(usage); 555} 556 557 558audio_io_handle_t AudioSystem::getOutput(stream_type stream, 559 uint32_t samplingRate, 560 uint32_t format, 561 uint32_t channels, 562 output_flags flags) 563{ 564 audio_io_handle_t output = 0; 565 // Do not use stream to output map cache if the direct output 566 // flag is set or if we are likely to use a direct output 567 // (e.g voice call stream @ 8kHz could use BT SCO device and be routed to 568 // a direct output on some platforms). 569 // TODO: the output cache and stream to output mapping implementation needs to 570 // be reworked for proper operation with direct outputs. This code is too specific 571 // to the first use case we want to cover (Voice Recognition and Voice Dialer over 572 // Bluetooth SCO 573 if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) == 0 && 574 ((stream != AudioSystem::VOICE_CALL && stream != AudioSystem::BLUETOOTH_SCO) || 575 channels != AudioSystem::CHANNEL_OUT_MONO || 576 (samplingRate != 8000 && samplingRate != 16000))) { 577 Mutex::Autolock _l(gLock); 578 output = AudioSystem::gStreamOutputMap.valueFor(stream); 579 LOGV_IF((output != 0), "getOutput() read %d from cache for stream %d", output, stream); 580 } 581 if (output == 0) { 582 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 583 if (aps == 0) return 0; 584 output = aps->getOutput(stream, samplingRate, format, channels, flags); 585 if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) == 0) { 586 Mutex::Autolock _l(gLock); 587 AudioSystem::gStreamOutputMap.add(stream, output); 588 } 589 } 590 return output; 591} 592 593status_t AudioSystem::startOutput(audio_io_handle_t output, AudioSystem::stream_type stream) 594{ 595 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 596 if (aps == 0) return PERMISSION_DENIED; 597 return aps->startOutput(output, stream); 598} 599 600status_t AudioSystem::stopOutput(audio_io_handle_t output, AudioSystem::stream_type stream) 601{ 602 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 603 if (aps == 0) return PERMISSION_DENIED; 604 return aps->stopOutput(output, stream); 605} 606 607void AudioSystem::releaseOutput(audio_io_handle_t output) 608{ 609 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 610 if (aps == 0) return; 611 aps->releaseOutput(output); 612} 613 614audio_io_handle_t AudioSystem::getInput(int inputSource, 615 uint32_t samplingRate, 616 uint32_t format, 617 uint32_t channels, 618 audio_in_acoustics acoustics) 619{ 620 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 621 if (aps == 0) return 0; 622 return aps->getInput(inputSource, samplingRate, format, channels, acoustics); 623} 624 625status_t AudioSystem::startInput(audio_io_handle_t input) 626{ 627 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 628 if (aps == 0) return PERMISSION_DENIED; 629 return aps->startInput(input); 630} 631 632status_t AudioSystem::stopInput(audio_io_handle_t input) 633{ 634 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 635 if (aps == 0) return PERMISSION_DENIED; 636 return aps->stopInput(input); 637} 638 639void AudioSystem::releaseInput(audio_io_handle_t input) 640{ 641 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 642 if (aps == 0) return; 643 aps->releaseInput(input); 644} 645 646status_t AudioSystem::initStreamVolume(stream_type stream, 647 int indexMin, 648 int indexMax) 649{ 650 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 651 if (aps == 0) return PERMISSION_DENIED; 652 return aps->initStreamVolume(stream, indexMin, indexMax); 653} 654 655status_t AudioSystem::setStreamVolumeIndex(stream_type stream, int index) 656{ 657 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 658 if (aps == 0) return PERMISSION_DENIED; 659 return aps->setStreamVolumeIndex(stream, index); 660} 661 662status_t AudioSystem::getStreamVolumeIndex(stream_type stream, int *index) 663{ 664 const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service(); 665 if (aps == 0) return PERMISSION_DENIED; 666 return aps->getStreamVolumeIndex(stream, index); 667} 668 669// --------------------------------------------------------------------------- 670 671void AudioSystem::AudioPolicyServiceClient::binderDied(const wp<IBinder>& who) { 672 Mutex::Autolock _l(AudioSystem::gLock); 673 AudioSystem::gAudioPolicyService.clear(); 674 675 LOGW("AudioPolicyService server died!"); 676} 677 678// --------------------------------------------------------------------------- 679 680 681// use emulated popcount optimization 682// http://www.df.lth.se/~john_e/gems/gem002d.html 683uint32_t AudioSystem::popCount(uint32_t u) 684{ 685 u = ((u&0x55555555) + ((u>>1)&0x55555555)); 686 u = ((u&0x33333333) + ((u>>2)&0x33333333)); 687 u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f)); 688 u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff)); 689 u = ( u&0x0000ffff) + (u>>16); 690 return u; 691} 692 693bool AudioSystem::isOutputDevice(audio_devices device) 694{ 695 if ((popCount(device) == 1 ) && 696 ((device & ~AudioSystem::DEVICE_OUT_ALL) == 0)) { 697 return true; 698 } else { 699 return false; 700 } 701} 702 703bool AudioSystem::isInputDevice(audio_devices device) 704{ 705 if ((popCount(device) == 1 ) && 706 ((device & ~AudioSystem::DEVICE_IN_ALL) == 0)) { 707 return true; 708 } else { 709 return false; 710 } 711} 712 713bool AudioSystem::isA2dpDevice(audio_devices device) 714{ 715 if ((popCount(device) == 1 ) && 716 (device & (AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP | 717 AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES | 718 AudioSystem::DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER))) { 719 return true; 720 } else { 721 return false; 722 } 723} 724 725bool AudioSystem::isBluetoothScoDevice(audio_devices device) 726{ 727 if ((popCount(device) == 1 ) && 728 (device & (AudioSystem::DEVICE_OUT_BLUETOOTH_SCO | 729 AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_HEADSET | 730 AudioSystem::DEVICE_OUT_BLUETOOTH_SCO_CARKIT))) { 731 return true; 732 } else { 733 return false; 734 } 735} 736 737bool AudioSystem::isLowVisibility(stream_type stream) 738{ 739 if (stream == AudioSystem::SYSTEM || 740 stream == AudioSystem::NOTIFICATION || 741 stream == AudioSystem::RING) { 742 return true; 743 } else { 744 return false; 745 } 746} 747 748bool AudioSystem::isInputChannel(uint32_t channel) 749{ 750 if ((channel & ~AudioSystem::CHANNEL_IN_ALL) == 0) { 751 return true; 752 } else { 753 return false; 754 } 755} 756 757bool AudioSystem::isOutputChannel(uint32_t channel) 758{ 759 if ((channel & ~AudioSystem::CHANNEL_OUT_ALL) == 0) { 760 return true; 761 } else { 762 return false; 763 } 764} 765 766bool AudioSystem::isValidFormat(uint32_t format) 767{ 768 switch (format & MAIN_FORMAT_MASK) { 769 case PCM: 770 case MP3: 771 case AMR_NB: 772 case AMR_WB: 773 case AAC: 774 case HE_AAC_V1: 775 case HE_AAC_V2: 776 case VORBIS: 777 return true; 778 default: 779 return false; 780 } 781} 782 783bool AudioSystem::isLinearPCM(uint32_t format) 784{ 785 switch (format) { 786 case PCM_16_BIT: 787 case PCM_8_BIT: 788 return true; 789 default: 790 return false; 791 } 792} 793 794//------------------------- AudioParameter class implementation --------------- 795 796const char *AudioParameter::keyRouting = "routing"; 797const char *AudioParameter::keySamplingRate = "sampling_rate"; 798const char *AudioParameter::keyFormat = "format"; 799const char *AudioParameter::keyChannels = "channels"; 800const char *AudioParameter::keyFrameCount = "frame_count"; 801 802AudioParameter::AudioParameter(const String8& keyValuePairs) 803{ 804 char *str = new char[keyValuePairs.length()+1]; 805 mKeyValuePairs = keyValuePairs; 806 807 strcpy(str, keyValuePairs.string()); 808 char *pair = strtok(str, ";"); 809 while (pair != NULL) { 810 if (strlen(pair) != 0) { 811 size_t eqIdx = strcspn(pair, "="); 812 String8 key = String8(pair, eqIdx); 813 String8 value; 814 if (eqIdx == strlen(pair)) { 815 value = String8(""); 816 } else { 817 value = String8(pair + eqIdx + 1); 818 } 819 if (mParameters.indexOfKey(key) < 0) { 820 mParameters.add(key, value); 821 } else { 822 mParameters.replaceValueFor(key, value); 823 } 824 } else { 825 LOGV("AudioParameter() cstor empty key value pair"); 826 } 827 pair = strtok(NULL, ";"); 828 } 829 830 delete[] str; 831} 832 833AudioParameter::~AudioParameter() 834{ 835 mParameters.clear(); 836} 837 838String8 AudioParameter::toString() 839{ 840 String8 str = String8(""); 841 842 size_t size = mParameters.size(); 843 for (size_t i = 0; i < size; i++) { 844 str += mParameters.keyAt(i); 845 str += "="; 846 str += mParameters.valueAt(i); 847 if (i < (size - 1)) str += ";"; 848 } 849 return str; 850} 851 852status_t AudioParameter::add(const String8& key, const String8& value) 853{ 854 if (mParameters.indexOfKey(key) < 0) { 855 mParameters.add(key, value); 856 return NO_ERROR; 857 } else { 858 mParameters.replaceValueFor(key, value); 859 return ALREADY_EXISTS; 860 } 861} 862 863status_t AudioParameter::addInt(const String8& key, const int value) 864{ 865 char str[12]; 866 if (snprintf(str, 12, "%d", value) > 0) { 867 String8 str8 = String8(str); 868 return add(key, str8); 869 } else { 870 return BAD_VALUE; 871 } 872} 873 874status_t AudioParameter::addFloat(const String8& key, const float value) 875{ 876 char str[23]; 877 if (snprintf(str, 23, "%.10f", value) > 0) { 878 String8 str8 = String8(str); 879 return add(key, str8); 880 } else { 881 return BAD_VALUE; 882 } 883} 884 885status_t AudioParameter::remove(const String8& key) 886{ 887 if (mParameters.indexOfKey(key) >= 0) { 888 mParameters.removeItem(key); 889 return NO_ERROR; 890 } else { 891 return BAD_VALUE; 892 } 893} 894 895status_t AudioParameter::get(const String8& key, String8& value) 896{ 897 if (mParameters.indexOfKey(key) >= 0) { 898 value = mParameters.valueFor(key); 899 return NO_ERROR; 900 } else { 901 return BAD_VALUE; 902 } 903} 904 905status_t AudioParameter::getInt(const String8& key, int& value) 906{ 907 String8 str8; 908 status_t result = get(key, str8); 909 value = 0; 910 if (result == NO_ERROR) { 911 int val; 912 if (sscanf(str8.string(), "%d", &val) == 1) { 913 value = val; 914 } else { 915 result = INVALID_OPERATION; 916 } 917 } 918 return result; 919} 920 921status_t AudioParameter::getFloat(const String8& key, float& value) 922{ 923 String8 str8; 924 status_t result = get(key, str8); 925 value = 0; 926 if (result == NO_ERROR) { 927 float val; 928 if (sscanf(str8.string(), "%f", &val) == 1) { 929 value = val; 930 } else { 931 result = INVALID_OPERATION; 932 } 933 } 934 return result; 935} 936 937status_t AudioParameter::getAt(size_t index, String8& key, String8& value) 938{ 939 if (mParameters.size() > index) { 940 key = mParameters.keyAt(index); 941 value = mParameters.valueAt(index); 942 return NO_ERROR; 943 } else { 944 return BAD_VALUE; 945 } 946} 947}; // namespace android 948 949