qq视频聊天时的audio录音 Framework相关代码流程

qq视频聊天时，发起方的代码调用流程。

一，设置：

1.qq:

com.tencent.sharp.jni.AudioDeviceInterface.InitRecording(ProGuard:308)

2.framework:(构造AudioRecord对象)

AudioRecord:AudioRecord():format = AudioFormat: props=7 enc=2 chan=0x10rate=16000,bufferSizeInBytes          =2560

    3.jni层:androi_media_AudioRecord.cpp

AudioRecord-JNI( 8569): JNI:android_media_AudioRecord.cpp:android_media_AudioRecord_setup

4.AudioRecord.cpp

V/AudioRecord( 8569): AudioRecord::set()
V/AudioRecord( 8569): AudioRecord::openRecord_l()

5.AudioSystem.cpp
V/AudioSystem( 8569): AudioSystem::getInputForAttr
V/AudioPolicyIntefaceImpl(  374): AudioPolicyService::getInputForAttr()
W/AudioPolicyClientImpl(  374): AudioPolicyService::AudioPolicyClient::openInput()
V/AudioFlinger(  374): AudioFlinger::openInput()
V/AudioFlinger(  374): AudioFlinger::openInput_l()
V/AudioFlinger(  374): AudioFlinger::RecordThread::RecordThread()
V/AudioFlinger(  374): AudioFlinger::RecordThread::threadLoop()

回播
V/AudioFlinger(  374): AudioFlinger::PlaybackThread::PlaybackThread()
V/AudioFlinger(  374): AudioFlinger::PlaybackThread::threadLoop()

二，开始read（录音）了
1.com.tencent.sharp.jni.AudioDeviceInterface.RecordAudio(ProGuard:1008)

2.AudioRecord.java

android.media.AudioRecord.read(AudioRecord.java:760)

先做个调用顺序的记录，具体解释，以后再加上