AudioGroup.cpp revision a0ee529927ab5cb2762994fc865df09179bdcda8
173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh/* 273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * Copyright (C) 2010 The Android Open Source Project 373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * 473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * Licensed under the Apache License, Version 2.0 (the "License"); 573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * you may not use this file except in compliance with the License. 673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * You may obtain a copy of the License at 773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * 873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * http://www.apache.org/licenses/LICENSE-2.0 973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * 1073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * Unless required by applicable law or agreed to in writing, software 1173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * distributed under the License is distributed on an "AS IS" BASIS, 1273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * See the License for the specific language governing permissions and 1473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh * limitations under the License. 1573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh */ 1673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 1773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <stdio.h> 1873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <stdint.h> 1973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <string.h> 2073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <errno.h> 2173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <fcntl.h> 2273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <sys/epoll.h> 2373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <sys/types.h> 2473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <sys/socket.h> 2573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <sys/stat.h> 2673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <sys/time.h> 2773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <time.h> 2873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <arpa/inet.h> 2973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <netinet/in.h> 3073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 317bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh// #define LOG_NDEBUG 0 3273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#define LOG_TAG "AudioGroup" 3373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <cutils/atomic.h> 3481b8e1b53a6035d0950309dc24d1500c5acf7f37Eric Laurent#include <cutils/properties.h> 3573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <utils/Log.h> 3673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <utils/Errors.h> 3773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <utils/RefBase.h> 3873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <utils/threads.h> 3973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <utils/SystemClock.h> 4073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <media/AudioSystem.h> 4173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <media/AudioRecord.h> 4273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <media/AudioTrack.h> 4373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include <media/mediarecorder.h> 44ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent#include <media/AudioEffect.h> 45ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent#include <audio_effects/effect_aec.h> 4636daedc9bcdadecc3065b2783553804e81a78dcdDima Zavin#include <system/audio.h> 4731a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin 4873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include "jni.h" 4973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include "JNIHelp.h" 5073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 5173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh#include "AudioCodec.h" 52c7092775516e15983053a58b3b43ff3eb58ac46fChia-chi Yeh#include "EchoSuppressor.h" 5373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 5473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehextern int parse(JNIEnv *env, jstring jAddress, int port, sockaddr_storage *ss); 5573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 5673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehnamespace { 5773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 5873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehusing namespace android; 5973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 6073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehint gRandom = -1; 6173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 6273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// We use a circular array to implement jitter buffer. The simplest way is doing 6373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// a modulo operation on the index while accessing the array. However modulo can 6473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// be expensive on some platforms, such as ARM. Thus we round up the size of the 6573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// array to the nearest power of 2 and then use bitwise-and instead of modulo. 667bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh// Currently we make it 2048ms long and assume packet interval is 50ms or less. 677bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh// The first 100ms is the place where samples get mixed. The rest is the real 687bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh// jitter buffer. For a stream at 8000Hz it takes 32 kilobytes. These numbers 6973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// are chosen by experiments and each of them can be adjusted as needed. 7073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 719795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// Originally a stream does not send packets when it is receive-only or there is 729795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// nothing to mix. However, this causes some problems with certain firewalls and 739795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// proxies. A firewall might remove a port mapping when there is no outgoing 749795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// packet for a preiod of time, and a proxy might wait for incoming packets from 759795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// both sides before start forwarding. To solve these problems, we send out a 769795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// silence packet on the stream for every second. It should be good enough to 779795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh// keep the stream alive with relatively low resources. 789795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh 7973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// Other notes: 8073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// + We use elapsedRealtime() to get the time. Since we use 32bit variables 8173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// instead of 64bit ones, comparison must be done by subtraction. 8273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// + Sampling rate must be multiple of 1000Hz, and packet length must be in 8373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// milliseconds. No floating points. 8473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// + If we cannot get enough CPU, we drop samples and simulate packet loss. 8573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh// + Resampling is not done yet, so streams in one group must use the same rate. 86b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh// For the first release only 8000Hz is supported. 87b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh 887bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh#define BUFFER_SIZE 2048 897bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh#define HISTORY_SIZE 100 907bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh#define MEASURE_BASE 100 917bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh#define MEASURE_PERIOD 5000 927bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh#define DTMF_PERIOD 200 9373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 9473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehclass AudioStream 9573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 9673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehpublic: 9773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream(); 9873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ~AudioStream(); 9973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool set(int mode, int socket, sockaddr_storage *remote, 1000d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh AudioCodec *codec, int sampleRate, int sampleCount, 10173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int codecType, int dtmfType); 10273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 10373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh void sendDtmf(int event); 10473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool mix(int32_t *output, int head, int tail, int sampleRate); 10573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh void encode(int tick, AudioStream *chain); 10673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh void decode(int tick); 10773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 108a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yehprivate: 10973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh enum { 11073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh NORMAL = 0, 11173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh SEND_ONLY = 1, 11273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh RECEIVE_ONLY = 2, 11373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LAST_MODE = 2, 11473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh }; 11573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 11673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mMode; 11773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mSocket; 11873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sockaddr_storage mRemote; 11973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioCodec *mCodec; 12073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh uint32_t mCodecMagic; 12173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh uint32_t mDtmfMagic; 122f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh bool mFixRemote; 12373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 12473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mTick; 12573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mSampleRate; 12673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mSampleCount; 12773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mInterval; 1289795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh int mKeepAlive; 12973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 13073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int16_t *mBuffer; 13173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mBufferMask; 13273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mBufferHead; 13373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mBufferTail; 134b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh int mLatencyTimer; 13573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mLatencyScore; 13673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 13773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh uint16_t mSequence; 13873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh uint32_t mTimestamp; 13973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh uint32_t mSsrc; 14073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 14173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mDtmfEvent; 14273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mDtmfStart; 14373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 14473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream *mNext; 14573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 14673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh friend class AudioGroup; 14773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh}; 14873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 14973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi YehAudioStream::AudioStream() 15073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 15173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSocket = -1; 15273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mCodec = NULL; 15373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBuffer = NULL; 15473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mNext = NULL; 15573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 15673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 15773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi YehAudioStream::~AudioStream() 15873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 15973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh close(mSocket); 16073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete mCodec; 16173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete [] mBuffer; 16273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("stream[%d] is dead", mSocket); 16373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 16473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 16573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioStream::set(int mode, int socket, sockaddr_storage *remote, 1660d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh AudioCodec *codec, int sampleRate, int sampleCount, 16773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int codecType, int dtmfType) 16873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 16973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mode < 0 || mode > LAST_MODE) { 17073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 17173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 17273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mMode = mode; 17373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 17473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mCodecMagic = (0x8000 | codecType) << 16; 17573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfMagic = (dtmfType == -1) ? 0 : (0x8000 | dtmfType) << 16; 17673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 17773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mTick = elapsedRealtime(); 17873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSampleRate = sampleRate / 1000; 17973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSampleCount = sampleCount; 18073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mInterval = mSampleCount / mSampleRate; 18173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 18273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Allocate jitter buffer. 183b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh for (mBufferMask = 8; mBufferMask < mSampleRate; mBufferMask <<= 1); 184b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferMask *= BUFFER_SIZE; 18573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBuffer = new int16_t[mBufferMask]; 18673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh --mBufferMask; 18773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferHead = 0; 18873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferTail = 0; 189b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mLatencyTimer = 0; 19073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mLatencyScore = 0; 19173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 19273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Initialize random bits. 19373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh read(gRandom, &mSequence, sizeof(mSequence)); 19473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh read(gRandom, &mTimestamp, sizeof(mTimestamp)); 19573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh read(gRandom, &mSsrc, sizeof(mSsrc)); 19673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 19773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = -1; 19873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfStart = 0; 19973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 2000d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh // Only take over these things when succeeded. 20173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSocket = socket; 2020d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh if (codec) { 2030d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh mRemote = *remote; 2040d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh mCodec = codec; 205f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh 206f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh // Here we should never get an private address, but some buggy proxy 207f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh // servers do give us one. To solve this, we replace the address when 208f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh // the first time we successfully decode an incoming packet. 209f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh mFixRemote = false; 210f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh if (remote->ss_family == AF_INET) { 211f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh unsigned char *address = 212f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh (unsigned char *)&((sockaddr_in *)remote)->sin_addr; 213f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh if (address[0] == 10 || 214f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh (address[0] == 172 && (address[1] >> 4) == 1) || 215f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh (address[0] == 192 && address[1] == 168)) { 216f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh mFixRemote = true; 217f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh } 218f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh } 2190d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh } 22073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 221d85beac45c12a65076a1c157681de9a5b03bdec7Chia-chi Yeh LOGD("stream[%d] is configured as %s %dkHz %dms mode %d", mSocket, 222d85beac45c12a65076a1c157681de9a5b03bdec7Chia-chi Yeh (codec ? codec->name : "RAW"), mSampleRate, mInterval, mMode); 22373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 22473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 22573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 22673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid AudioStream::sendDtmf(int event) 22773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 22873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mDtmfMagic != 0) { 22973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = event << 24; 23073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfStart = mTimestamp + mSampleCount; 23173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 23273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 23373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 23473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioStream::mix(int32_t *output, int head, int tail, int sampleRate) 23573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 23673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mMode == SEND_ONLY) { 23773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 23873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 23973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 24073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (head - mBufferHead < 0) { 24173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh head = mBufferHead; 24273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 24373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (tail - mBufferTail > 0) { 24473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh tail = mBufferTail; 24573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 24673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (tail - head <= 0) { 24773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 24873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 24973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 25073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh head *= mSampleRate; 25173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh tail *= mSampleRate; 25273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 25373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (sampleRate == mSampleRate) { 25473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh for (int i = head; i - tail < 0; ++i) { 25573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh output[i - head] += mBuffer[i & mBufferMask]; 25673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 25773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } else { 25873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // TODO: implement resampling. 25973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 26073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 26173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 26273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 26373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 26473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid AudioStream::encode(int tick, AudioStream *chain) 26573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 26673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (tick - mTick >= mInterval) { 26773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // We just missed the train. Pretend that packets in between are lost. 26873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int skipped = (tick - mTick) / mInterval; 26973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mTick += skipped * mInterval; 27073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSequence += skipped; 27173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mTimestamp += skipped * mSampleCount; 272a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] skips %d packets", mSocket, skipped); 27373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 27473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 27573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh tick = mTick; 27673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mTick += mInterval; 27773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ++mSequence; 27873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mTimestamp += mSampleCount; 27973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 28073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // If there is an ongoing DTMF event, send it now. 2819795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh if (mMode != RECEIVE_ONLY && mDtmfEvent != -1) { 28273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int duration = mTimestamp - mDtmfStart; 28373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Make sure duration is reasonable. 2847bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (duration >= 0 && duration < mSampleRate * DTMF_PERIOD) { 28573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh duration += mSampleCount; 28673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int32_t buffer[4] = { 28773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh htonl(mDtmfMagic | mSequence), 28873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh htonl(mDtmfStart), 28973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSsrc, 29073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh htonl(mDtmfEvent | duration), 29173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh }; 2927bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (duration >= mSampleRate * DTMF_PERIOD) { 29373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh buffer[3] |= htonl(1 << 23); 29473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = -1; 29573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 29673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sendto(mSocket, buffer, sizeof(buffer), MSG_DONTWAIT, 29773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh (sockaddr *)&mRemote, sizeof(mRemote)); 29873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 29973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 30073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = -1; 30173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 30273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 30373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int32_t buffer[mSampleCount + 3]; 3047bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh bool data = false; 3057bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (mMode != RECEIVE_ONLY) { 3069795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh // Mix all other streams. 3079795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh memset(buffer, 0, sizeof(buffer)); 3089795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh while (chain) { 3097bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (chain != this) { 3107bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh data |= chain->mix(buffer, tick - mInterval, tick, mSampleRate); 3119795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh } 3129795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh chain = chain->mNext; 313ea7bed2487a9460ad2c01cda9ded8035e0b0c945repo sync } 3147bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh } 31573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 3167bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh int16_t samples[mSampleCount]; 3177bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (data) { 3187bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh // Saturate into 16 bits. 3197bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh for (int i = 0; i < mSampleCount; ++i) { 3207bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh int32_t sample = buffer[i]; 3217bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (sample < -32768) { 3227bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh sample = -32768; 3239795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh } 3247bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (sample > 32767) { 3257bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh sample = 32767; 3269795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh } 3277bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh samples[i] = sample; 3287bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh } 3297bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh } else { 3307bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if ((mTick ^ mKeepAlive) >> 10 == 0) { 3317bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh return; 3327bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh } 3337bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh mKeepAlive = mTick; 3347bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh memset(samples, 0, sizeof(samples)); 3357bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh 3367bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (mMode != RECEIVE_ONLY) { 337a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] no data", mSocket); 33873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 33973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 3409795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh 34173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!mCodec) { 34273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Special case for device stream. 34373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh send(mSocket, samples, sizeof(samples), MSG_DONTWAIT); 34473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 34573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 34673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 3479795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh // Cook the packet and send it out. 34873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh buffer[0] = htonl(mCodecMagic | mSequence); 34973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh buffer[1] = htonl(mTimestamp); 35073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh buffer[2] = mSsrc; 35173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int length = mCodec->encode(&buffer[3], samples); 35273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (length <= 0) { 353a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] encoder error", mSocket); 35473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 35573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 35673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sendto(mSocket, buffer, length + 12, MSG_DONTWAIT, (sockaddr *)&mRemote, 35773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sizeof(mRemote)); 35873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 35973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 36073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid AudioStream::decode(int tick) 36173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 36273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh char c; 36373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mMode == SEND_ONLY) { 36473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh recv(mSocket, &c, 1, MSG_DONTWAIT); 36573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 36673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 36773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 36873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Make sure mBufferHead and mBufferTail are reasonable. 369b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh if ((unsigned int)(tick + BUFFER_SIZE - mBufferHead) > BUFFER_SIZE * 2) { 370b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferHead = tick - HISTORY_SIZE; 37173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferTail = mBufferHead; 37273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 37373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 374b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh if (tick - mBufferHead > HISTORY_SIZE) { 37573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Throw away outdated samples. 376b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferHead = tick - HISTORY_SIZE; 37773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mBufferTail - mBufferHead < 0) { 37873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferTail = mBufferHead; 37973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 38073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 38173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 3827bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh // Adjust the jitter buffer if the latency keeps larger than the threshold 3837bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh // in the measurement period. 3847bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh int score = mBufferTail - tick - MEASURE_BASE; 3857bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh if (mLatencyScore > score || mLatencyScore <= 0) { 386b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mLatencyScore = score; 387b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mLatencyTimer = tick; 388b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh } else if (tick - mLatencyTimer >= MEASURE_PERIOD) { 389a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] reduces latency of %dms", mSocket, mLatencyScore); 390b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferTail -= mLatencyScore; 3917bece4e883db6abfa8e907c43bf031a209c66de9Chia-chi Yeh mLatencyScore = -1; 39273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 39373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 394418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh int count = (BUFFER_SIZE - (mBufferTail - mBufferHead)) * mSampleRate; 395418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh if (count < mSampleCount) { 39673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Buffer overflow. Drop the packet. 397a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] buffer overflow", mSocket); 39873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh recv(mSocket, &c, 1, MSG_DONTWAIT); 39973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 40073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 40173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 40273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Receive the packet and decode it. 403418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh int16_t samples[count]; 40473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!mCodec) { 40573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Special case for device stream. 406418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh count = recv(mSocket, samples, sizeof(samples), 40773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh MSG_TRUNC | MSG_DONTWAIT) >> 1; 40873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } else { 40973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh __attribute__((aligned(4))) uint8_t buffer[2048]; 410f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh sockaddr_storage remote; 411418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh socklen_t addrlen = sizeof(remote); 412f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh 413418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh int length = recvfrom(mSocket, buffer, sizeof(buffer), 414418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh MSG_TRUNC | MSG_DONTWAIT, (sockaddr *)&remote, &addrlen); 41573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 41673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Do we need to check SSRC, sequence, and timestamp? They are not 41719f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh // reliable but at least they can be used to identify duplicates? 41873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (length < 12 || length > (int)sizeof(buffer) || 41973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh (ntohl(*(uint32_t *)buffer) & 0xC07F0000) != mCodecMagic) { 420a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] malformed packet", mSocket); 42173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 42273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 42373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int offset = 12 + ((buffer[0] & 0x0F) << 2); 42473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if ((buffer[0] & 0x10) != 0) { 42573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh offset += 4 + (ntohs(*(uint16_t *)&buffer[offset + 2]) << 2); 42673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 42773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if ((buffer[0] & 0x20) != 0) { 42873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh length -= buffer[length - 1]; 42973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 43073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh length -= offset; 43173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (length >= 0) { 432418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh length = mCodec->decode(samples, count, &buffer[offset], length); 43373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 434f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh if (length > 0 && mFixRemote) { 435f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh mRemote = remote; 436f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh mFixRemote = false; 437f703412e867486aef60daf3f025d03794c19821fChia-chi Yeh } 438418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh count = length; 43973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 440418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh if (count <= 0) { 441a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] decoder error", mSocket); 44273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return; 44373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 44473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 44573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (tick - mBufferTail > 0) { 446b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh // Buffer underrun. Reset the jitter buffer. 447a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("stream[%d] buffer underrun", mSocket); 44873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mBufferTail - mBufferHead <= 0) { 449b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferHead = tick + mInterval; 45073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferTail = mBufferHead; 45173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } else { 452b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh int tail = (tick + mInterval) * mSampleRate; 45373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh for (int i = mBufferTail * mSampleRate; i - tail < 0; ++i) { 45473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBuffer[i & mBufferMask] = 0; 45573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 456b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh mBufferTail = tick + mInterval; 45773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 45873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 45973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 46073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Append to the jitter buffer. 46173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int tail = mBufferTail * mSampleRate; 462418b5f04c2eb3ceff046328ba23a16b89a5a3306Chia-chi Yeh for (int i = 0; i < count; ++i) { 46373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBuffer[tail & mBufferMask] = samples[i]; 46473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ++tail; 46573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 46673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mBufferTail += mInterval; 46773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 46873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 46973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh//------------------------------------------------------------------------------ 47073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 47173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehclass AudioGroup 47273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 47373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehpublic: 47473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup(); 47573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ~AudioGroup(); 47673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool set(int sampleRate, int sampleCount); 47773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 47873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool setMode(int mode); 47973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool sendDtmf(int event); 48073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool add(AudioStream *stream); 48173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool remove(int socket); 482ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent bool platformHasAec() { return mPlatformHasAec; } 48373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 484a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yehprivate: 48573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh enum { 48673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ON_HOLD = 0, 48773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh MUTED = 1, 48873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh NORMAL = 2, 48904fcfe3ce9fdc5d3487c9760092649afc2de2dc8Chia-chi Yeh ECHO_SUPPRESSION = 3, 49073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LAST_MODE = 3, 49173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh }; 492d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 493ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent bool checkPlatformAec(); 494ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 49573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream *mChain; 49673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mEventQueue; 49773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh volatile int mDtmfEvent; 49873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 499d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int mMode; 500d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int mSampleRate; 50173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mSampleCount; 50273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mDeviceSocket; 503ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent bool mPlatformHasAec; 50473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 50573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh class NetworkThread : public Thread 50673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh { 50773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh public: 50873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh NetworkThread(AudioGroup *group) : Thread(false), mGroup(group) {} 50973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 51073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool start() 51173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh { 51273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (run("Network", ANDROID_PRIORITY_AUDIO) != NO_ERROR) { 51373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("cannot start network thread"); 51473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 51573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 51673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 51773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 51873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 51973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh private: 52073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *mGroup; 521d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh bool threadLoop(); 52273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh }; 52373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sp<NetworkThread> mNetworkThread; 52473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 52573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh class DeviceThread : public Thread 52673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh { 52773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh public: 52873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh DeviceThread(AudioGroup *group) : Thread(false), mGroup(group) {} 52973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 53073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh bool start() 53173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh { 53273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (run("Device", ANDROID_PRIORITY_AUDIO) != NO_ERROR) { 53373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("cannot start device thread"); 53473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 53573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 53673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 53773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 53873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 53973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh private: 54073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *mGroup; 541d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh bool threadLoop(); 54273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh }; 54373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sp<DeviceThread> mDeviceThread; 54473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh}; 54573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 54673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi YehAudioGroup::AudioGroup() 54773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 54873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mMode = ON_HOLD; 54973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mChain = NULL; 55073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mEventQueue = -1; 55173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = -1; 55273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDeviceSocket = -1; 55373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mNetworkThread = new NetworkThread(this); 55473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDeviceThread = new DeviceThread(this); 555ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent mPlatformHasAec = checkPlatformAec(); 55673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 55773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 55873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi YehAudioGroup::~AudioGroup() 55973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 56073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mNetworkThread->requestExitAndWait(); 56173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDeviceThread->requestExitAndWait(); 56273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh close(mEventQueue); 56373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh close(mDeviceSocket); 56473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh while (mChain) { 56573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream *next = mChain->mNext; 56673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete mChain; 56773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mChain = next; 56873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 56973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("group[%d] is dead", mDeviceSocket); 57073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 57173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 57273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioGroup::set(int sampleRate, int sampleCount) 57373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 57473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mEventQueue = epoll_create(2); 57573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mEventQueue == -1) { 57673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("epoll_create: %s", strerror(errno)); 57773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 57873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 57973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 580d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh mSampleRate = sampleRate; 58173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mSampleCount = sampleCount; 58273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 58373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Create device socket. 58473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int pair[2]; 58573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair)) { 58673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("socketpair: %s", strerror(errno)); 58773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 58873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 58973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDeviceSocket = pair[0]; 59073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 59173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Create device stream. 59273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mChain = new AudioStream; 59373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!mChain->set(AudioStream::NORMAL, pair[1], NULL, NULL, 59473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sampleRate, sampleCount, -1, -1)) { 59573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh close(pair[1]); 59673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("cannot initialize device stream"); 59773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 59873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 59973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 600d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh // Give device socket a reasonable timeout. 60173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh timeval tv; 60273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh tv.tv_sec = 0; 603a7f73fb2550935cc78c643b7faf25ebacf16b94fChia-chi Yeh tv.tv_usec = 1000 * sampleCount / sampleRate * 500; 604d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (setsockopt(pair[0], SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv))) { 60573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("setsockopt: %s", strerror(errno)); 60673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 60773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 60873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 60973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Add device stream into event queue. 61073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh epoll_event event; 61173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh event.events = EPOLLIN; 61273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh event.data.ptr = mChain; 61373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (epoll_ctl(mEventQueue, EPOLL_CTL_ADD, pair[1], &event)) { 61473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("epoll_ctl: %s", strerror(errno)); 61573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 61673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 61773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 61873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Anything else? 61973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("stream[%d] joins group[%d]", pair[1], pair[0]); 62073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 62173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 62273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 62373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioGroup::setMode(int mode) 62473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 62573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mode < 0 || mode > LAST_MODE) { 62673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 62773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 6286089a999b71162cd94ed2322670d7a2090b7d094Eric Laurent // FIXME: temporary code to overcome echo and mic gain issues on herring and tuna boards. 6296089a999b71162cd94ed2322670d7a2090b7d094Eric Laurent // Must be modified/removed when the root cause of the issue is fixed in the hardware or 6306089a999b71162cd94ed2322670d7a2090b7d094Eric Laurent // driver 63181b8e1b53a6035d0950309dc24d1500c5acf7f37Eric Laurent char value[PROPERTY_VALUE_MAX]; 63281b8e1b53a6035d0950309dc24d1500c5acf7f37Eric Laurent property_get("ro.product.board", value, ""); 6336089a999b71162cd94ed2322670d7a2090b7d094Eric Laurent if (mode == NORMAL && 6346089a999b71162cd94ed2322670d7a2090b7d094Eric Laurent (!strcmp(value, "herring") || !strcmp(value, "tuna"))) { 63581b8e1b53a6035d0950309dc24d1500c5acf7f37Eric Laurent mode = ECHO_SUPPRESSION; 63681b8e1b53a6035d0950309dc24d1500c5acf7f37Eric Laurent } 63773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mMode == mode) { 63873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 63973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 64073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 641d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh mDeviceThread->requestExitAndWait(); 64273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("group[%d] switches from mode %d to %d", mDeviceSocket, mMode, mode); 64373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mMode = mode; 644d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh return (mode == ON_HOLD) || mDeviceThread->start(); 64573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 64673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 64773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioGroup::sendDtmf(int event) 64873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 64973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (event < 0 || event > 15) { 65073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 65173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 65273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 65373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // DTMF is rarely used, so we try to make it as lightweight as possible. 65473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Using volatile might be dodgy, but using a pipe or pthread primitives 65573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // or stop-set-restart threads seems too heavy. Will investigate later. 65673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh timespec ts; 65773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ts.tv_sec = 0; 65873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ts.tv_nsec = 100000000; 65973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh for (int i = 0; mDtmfEvent != -1 && i < 20; ++i) { 66073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh nanosleep(&ts, NULL); 66173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 66273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (mDtmfEvent != -1) { 66373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 66473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 66573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mDtmfEvent = event; 66673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh nanosleep(&ts, NULL); 66773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 66873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 66973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 67073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioGroup::add(AudioStream *stream) 67173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 67273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mNetworkThread->requestExitAndWait(); 67373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 67473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh epoll_event event; 67573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh event.events = EPOLLIN; 67673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh event.data.ptr = stream; 67773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (epoll_ctl(mEventQueue, EPOLL_CTL_ADD, stream->mSocket, &event)) { 67873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("epoll_ctl: %s", strerror(errno)); 67973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 68073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 68173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 68273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh stream->mNext = mChain->mNext; 68373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mChain->mNext = stream; 68473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!mNetworkThread->start()) { 68573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Only take over the stream when succeeded. 68673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mChain->mNext = stream->mNext; 68773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 68873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 68973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 69073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("stream[%d] joins group[%d]", stream->mSocket, mDeviceSocket); 69173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 69273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 69373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 69473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehbool AudioGroup::remove(int socket) 69573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 69673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh mNetworkThread->requestExitAndWait(); 69773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 69873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh for (AudioStream *stream = mChain; stream->mNext; stream = stream->mNext) { 69973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream *target = stream->mNext; 70073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (target->mSocket == socket) { 70119f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh if (epoll_ctl(mEventQueue, EPOLL_CTL_DEL, socket, NULL)) { 70219f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh LOGE("epoll_ctl: %s", strerror(errno)); 70319f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh return false; 70419f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh } 70573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh stream->mNext = target->mNext; 70673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGD("stream[%d] leaves group[%d]", socket, mDeviceSocket); 70773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete target; 70873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh break; 70973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 71073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 71173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 71273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Do not start network thread if there is only one stream. 71373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!mChain->mNext || !mNetworkThread->start()) { 71473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 71573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 71673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 71773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 71873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 719d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yehbool AudioGroup::NetworkThread::threadLoop() 72073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 721d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioStream *chain = mGroup->mChain; 72273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int tick = elapsedRealtime(); 72373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int deadline = tick + 10; 72473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int count = 0; 72573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 726d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh for (AudioStream *stream = chain; stream; stream = stream->mNext) { 727b727dc4e022dd5a64301dffc527db92e023bf156Chia-chi Yeh if (tick - stream->mTick >= 0) { 728d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh stream->encode(tick, chain); 72973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 73073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (deadline - stream->mTick > 0) { 73173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh deadline = stream->mTick; 73273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 73373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ++count; 73473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 73573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 736d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int event = mGroup->mDtmfEvent; 737d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (event != -1) { 738d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh for (AudioStream *stream = chain; stream; stream = stream->mNext) { 73973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh stream->sendDtmf(event); 74073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 741d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh mGroup->mDtmfEvent = -1; 74273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 74373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 74473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh deadline -= tick; 74573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (deadline < 1) { 74673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh deadline = 1; 74773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 74873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 74973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh epoll_event events[count]; 750d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh count = epoll_wait(mGroup->mEventQueue, events, count, deadline); 75173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (count == -1) { 75273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("epoll_wait: %s", strerror(errno)); 75373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return false; 75473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 75573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh for (int i = 0; i < count; ++i) { 75673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh ((AudioStream *)events[i].data.ptr)->decode(tick); 75773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 75873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 75973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return true; 76073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 76173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 762ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurentbool AudioGroup::checkPlatformAec() 763ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent{ 764ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent effect_descriptor_t fxDesc; 765ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent uint32_t numFx; 766ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 767ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (AudioEffect::queryNumberEffects(&numFx) != NO_ERROR) { 768ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent return false; 769ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 770ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent for (uint32_t i = 0; i < numFx; i++) { 771ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (AudioEffect::queryEffect(i, &fxDesc) != NO_ERROR) { 772ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent continue; 773ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 774ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (memcmp(&fxDesc.type, FX_IID_AEC, sizeof(effect_uuid_t)) == 0) { 775ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent return true; 776ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 777ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 778ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent return false; 779ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent} 780ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 781d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yehbool AudioGroup::DeviceThread::threadLoop() 78273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 783d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int mode = mGroup->mMode; 784d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int sampleRate = mGroup->mSampleRate; 785d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int sampleCount = mGroup->mSampleCount; 786d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int deviceSocket = mGroup->mDeviceSocket; 78773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 788d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh // Find out the frame count for AudioTrack and AudioRecord. 789d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int output = 0; 790d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int input = 0; 79131a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin if (AudioTrack::getMinFrameCount(&output, AUDIO_STREAM_VOICE_CALL, 792d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh sampleRate) != NO_ERROR || output <= 0 || 793d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioRecord::getMinFrameCount(&input, sampleRate, 79431a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin AUDIO_FORMAT_PCM_16_BIT, 1) != NO_ERROR || input <= 0) { 795d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGE("cannot compute frame count"); 796d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh return false; 79773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 798d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGD("reported frame count: output %d, input %d", output, input); 79973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 800d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (output < sampleCount * 2) { 801d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh output = sampleCount * 2; 802d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 803d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (input < sampleCount * 2) { 804d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh input = sampleCount * 2; 805d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 806d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGD("adjusted frame count: output %d, input %d", output, input); 80773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 808d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh // Initialize AudioTrack and AudioRecord. 809d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioTrack track; 810d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioRecord record; 81131a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin if (track.set(AUDIO_STREAM_VOICE_CALL, sampleRate, AUDIO_FORMAT_PCM_16_BIT, 81231a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin AUDIO_CHANNEL_OUT_MONO, output) != NO_ERROR || record.set( 81331a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin AUDIO_SOURCE_VOICE_COMMUNICATION, sampleRate, AUDIO_FORMAT_PCM_16_BIT, 81431a824ddf74276c6f571079fe6afbb71c13bf965Dima Zavin AUDIO_CHANNEL_IN_MONO, input) != NO_ERROR) { 815d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGE("cannot initialize audio device"); 816d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh return false; 817d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 818d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGD("latency: output %d, input %d", track.latency(), record.latency()); 81973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 820d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh // Give device socket a reasonable buffer size. 821d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh setsockopt(deviceSocket, SOL_SOCKET, SO_RCVBUF, &output, sizeof(output)); 822d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh setsockopt(deviceSocket, SOL_SOCKET, SO_SNDBUF, &output, sizeof(output)); 823d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 824d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh // Drain device socket. 825d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh char c; 826d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh while (recv(deviceSocket, &c, 1, MSG_DONTWAIT) == 1); 827d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 828ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent // check if platform supports echo cancellation and do not active local echo suppression in 829ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent // this case 830ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent EchoSuppressor *echo = NULL; 831ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent AudioEffect *aec = NULL; 832ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (mode == ECHO_SUPPRESSION) { 833ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (mGroup->platformHasAec()) { 834ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent aec = new AudioEffect(FX_IID_AEC, 835ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent NULL, 836ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 0, 837ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 0, 838ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 0, 839ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent record.getSessionId(), 840ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent record.getInput()); 841ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent status_t status = aec->initCheck(); 842ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (status == NO_ERROR || status == ALREADY_EXISTS) { 843ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent aec->setEnabled(true); 844ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } else { 845ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent delete aec; 846ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent aec = NULL; 847ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 848ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 849ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent // Create local echo suppressor if platform AEC cannot be used. 850ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (aec == NULL) { 851ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent echo = new EchoSuppressor(sampleCount, 852ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent (track.latency() + record.latency()) * sampleRate / 1000); 853ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 854ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent } 8550ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh // Start AudioRecord before AudioTrack. This prevents AudioTrack from being 8560ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh // disabled due to buffer underrun while waiting for AudioRecord. 857d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (mode != MUTED) { 858d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh record.start(); 8590ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh int16_t one; 8600ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh record.read(&one, sizeof(one)); 861d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 8620ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh track.start(); 863d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 864d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh while (!exitPending()) { 865d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int16_t output[sampleCount]; 866d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (recv(deviceSocket, output, sizeof(output), 0) <= 0) { 867d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh memset(output, 0, sizeof(output)); 8687dab0dc564087a4b8f90621cdfc8d730288fb201Chia-chi Yeh } 8697dab0dc564087a4b8f90621cdfc8d730288fb201Chia-chi Yeh 870d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int16_t input[sampleCount]; 871d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int toWrite = sampleCount; 872d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int toRead = (mode == MUTED) ? 0 : sampleCount; 873d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int chances = 100; 874d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 875d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh while (--chances > 0 && (toWrite > 0 || toRead > 0)) { 876d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (toWrite > 0) { 877d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioTrack::Buffer buffer; 878d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh buffer.frameCount = toWrite; 879d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 880d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh status_t status = track.obtainBuffer(&buffer, 1); 881d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (status == NO_ERROR) { 882d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh int offset = sampleCount - toWrite; 883d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh memcpy(buffer.i8, &output[offset], buffer.size); 884d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh toWrite -= buffer.frameCount; 885d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh track.releaseBuffer(&buffer); 886d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } else if (status != TIMED_OUT && status != WOULD_BLOCK) { 887d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGE("cannot write to AudioTrack"); 888ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent goto exit; 889d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 890d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 891d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 892d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (toRead > 0) { 893d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh AudioRecord::Buffer buffer; 8940ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh buffer.frameCount = toRead; 895d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh 896d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh status_t status = record.obtainBuffer(&buffer, 1); 897d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (status == NO_ERROR) { 8980ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh int offset = sampleCount - toRead; 8990ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh memcpy(&input[offset], buffer.i8, buffer.size); 9000ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh toRead -= buffer.frameCount; 901d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh record.releaseBuffer(&buffer); 902d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } else if (status != TIMED_OUT && status != WOULD_BLOCK) { 903d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh LOGE("cannot read from AudioRecord"); 904ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent goto exit; 9057dab0dc564087a4b8f90621cdfc8d730288fb201Chia-chi Yeh } 90673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 90773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 90873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 909d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (chances <= 0) { 9100ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh LOGW("device loop timeout"); 9110ec517b89eef54d900ed1c49c2611707d2406d3bChia-chi Yeh while (recv(deviceSocket, &c, 1, MSG_DONTWAIT) == 1); 912d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 91373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 914d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh if (mode != MUTED) { 915ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent if (echo != NULL) { 916a0ee529927ab5cb2762994fc865df09179bdcda8Steve Block ALOGV("echo->run()"); 917ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent echo->run(output, input); 918d3cd43211e94d0cd1dbb7d0c35b01412eea4b5b8Chia-chi Yeh } 919ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent send(deviceSocket, input, sizeof(input), MSG_DONTWAIT); 9207dab0dc564087a4b8f90621cdfc8d730288fb201Chia-chi Yeh } 9217dab0dc564087a4b8f90621cdfc8d730288fb201Chia-chi Yeh } 922ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent 923ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurentexit: 924ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent delete echo; 925ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent delete aec; 926ff0c3ac9f0e9aa22c0d4cc2b1ca051e1974287eaEric Laurent return true; 92773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 92873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 92973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh//------------------------------------------------------------------------------ 93073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 93173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehstatic jfieldID gNative; 93273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehstatic jfieldID gMode; 93373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 93419f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yehvoid add(JNIEnv *env, jobject thiz, jint mode, 93573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jint socket, jstring jRemoteAddress, jint remotePort, 9360d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh jstring jCodecSpec, jint dtmfType) 93773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 9380d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh AudioCodec *codec = NULL; 93973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioStream *stream = NULL; 94073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *group = NULL; 94173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 94273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Sanity check. 94373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh sockaddr_storage remote; 94473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (parse(env, jRemoteAddress, remotePort, &remote) < 0) { 94573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Exception already thrown. 9460d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh return; 94773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 9480d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh if (!jCodecSpec) { 9490d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh jniThrowNullPointerException(env, "codecSpec"); 9500d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh return; 95173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 9520d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh const char *codecSpec = env->GetStringUTFChars(jCodecSpec, NULL); 9530d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh if (!codecSpec) { 95473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Exception already thrown. 9550d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh return; 9560d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh } 9570d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh 9580d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh // Create audio codec. 9590d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh int codecType = -1; 9600d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh char codecName[16]; 9610d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh int sampleRate = -1; 9629795c258778208fd96a072b7a91028285aafbc32Chia-chi Yeh sscanf(codecSpec, "%d %15[^/]%*c%d", &codecType, codecName, &sampleRate); 9630d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh codec = newAudioCodec(codecName); 9640d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh int sampleCount = (codec ? codec->set(sampleRate, codecSpec) : -1); 9650d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh env->ReleaseStringUTFChars(jCodecSpec, codecSpec); 9660d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh if (sampleCount <= 0) { 9670d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh jniThrowException(env, "java/lang/IllegalStateException", 9680d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh "cannot initialize audio codec"); 96919f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh goto error; 97073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 97173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 97273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Create audio stream. 97373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh stream = new AudioStream; 9740d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh if (!stream->set(mode, socket, &remote, codec, sampleRate, sampleCount, 97573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh codecType, dtmfType)) { 97673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jniThrowException(env, "java/lang/IllegalStateException", 97773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh "cannot initialize audio stream"); 97873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh goto error; 97973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 98073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh socket = -1; 9810d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh codec = NULL; 98273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 98373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Create audio group. 98473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh group = (AudioGroup *)env->GetIntField(thiz, gNative); 98573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!group) { 98673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh int mode = env->GetIntField(thiz, gMode); 98773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh group = new AudioGroup; 98873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!group->set(8000, 256) || !group->setMode(mode)) { 98973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jniThrowException(env, "java/lang/IllegalStateException", 99073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh "cannot initialize audio group"); 99173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh goto error; 99273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 99373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 99473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 99573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Add audio stream into audio group. 99673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (!group->add(stream)) { 99773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jniThrowException(env, "java/lang/IllegalStateException", 99873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh "cannot add audio stream"); 99973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh goto error; 100073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 100173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 100273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh // Succeed. 100373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh env->SetIntField(thiz, gNative, (int)group); 100419f94d0256b9d50fe2656dc5c27ee56a24f92247Chia-chi Yeh return; 100573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 100673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeherror: 100773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete group; 100873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete stream; 10090d2c37c274f1db29f51f1d078f240be13b784bf2Chia-chi Yeh delete codec; 101073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh close(socket); 101173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh env->SetIntField(thiz, gNative, NULL); 101273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 101373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 101473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid remove(JNIEnv *env, jobject thiz, jint socket) 101573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 101673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *group = (AudioGroup *)env->GetIntField(thiz, gNative); 101773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (group) { 101873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (socket == -1 || !group->remove(socket)) { 101973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh delete group; 102073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh env->SetIntField(thiz, gNative, NULL); 102173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 102273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 102373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 102473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 102573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid setMode(JNIEnv *env, jobject thiz, jint mode) 102673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 102773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *group = (AudioGroup *)env->GetIntField(thiz, gNative); 102873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (group && !group->setMode(mode)) { 102973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 103073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 103173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 103273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 103373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehvoid sendDtmf(JNIEnv *env, jobject thiz, jint event) 103473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 103573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh AudioGroup *group = (AudioGroup *)env->GetIntField(thiz, gNative); 103673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (group && !group->sendDtmf(event)) { 103773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 103873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 103973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 104073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 104173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi YehJNINativeMethod gMethods[] = { 1042a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yeh {"nativeAdd", "(IILjava/lang/String;ILjava/lang/String;I)V", (void *)add}, 1043a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yeh {"nativeRemove", "(I)V", (void *)remove}, 1044a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yeh {"nativeSetMode", "(I)V", (void *)setMode}, 1045a54e36694b3909ef367867eb7516b2d6f6031261Chia-chi Yeh {"nativeSendDtmf", "(I)V", (void *)sendDtmf}, 104673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh}; 104773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 104873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} // namespace 104973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 105073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yehint registerAudioGroup(JNIEnv *env) 105173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh{ 105273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh gRandom = open("/dev/urandom", O_RDONLY); 105373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if (gRandom == -1) { 105473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("urandom: %s", strerror(errno)); 105573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return -1; 105673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 105773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh 105873f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh jclass clazz; 105973f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh if ((clazz = env->FindClass("android/net/rtp/AudioGroup")) == NULL || 106073f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh (gNative = env->GetFieldID(clazz, "mNative", "I")) == NULL || 106173f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh (gMode = env->GetFieldID(clazz, "mMode", "I")) == NULL || 106273f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh env->RegisterNatives(clazz, gMethods, NELEM(gMethods)) < 0) { 106373f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh LOGE("JNI registration failed"); 106473f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return -1; 106573f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh } 106673f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh return 0; 106773f6df1f0aac12c243e2110e30337ab01aa71598Chia-chi Yeh} 1068