Java 对等adhoc网络中实时传输协议RTP(realtimetransportprotocol)流的中继
我正在使用JMF框架为ad hoc网络建立对等实时语音通信。我使用了两个线程,即:每个对等点的接收方和发送方。接收方线程用于接收实时音频数据,发送方线程用于在对等方之间传输实时数据 它可以在一跳距离的两个对等点之间正常工作,但我想在两跳距离的两个对等点之间中继RTP流,如a、b和c 是三个对等点,它们以类似于a->b->c的方式连接(这里,a连接到b,所以b连接到c,但a没有连接到c),我想通过b在a到c之间中继rtp流 他们有没有办法在JAVA、JMF或任何其他库中实现这一点 \接收线Java 对等adhoc网络中实时传输协议RTP(realtimetransportprotocol)流的中继,java,rtp,jmf,Java,Rtp,Jmf,我正在使用JMF框架为ad hoc网络建立对等实时语音通信。我使用了两个线程,即:每个对等点的接收方和发送方。接收方线程用于接收实时音频数据,发送方线程用于在对等方之间传输实时数据 它可以在一跳距离的两个对等点之间正常工作,但我想在两跳距离的两个对等点之间中继RTP流,如a、b和c 是三个对等点,它们以类似于a->b->c的方式连接(这里,a连接到b,所以b连接到c,但a没有连接到c),我想通过b在a到c之间中继rtp流 他们有没有办法在JAVA、JMF或任何其他库中实现这一点 \接收线 pub
public void run() {
String url= "rtp://"+ip+":"+port+"/audio/16";
MediaLocator mrl= new MediaLocator(url);
System.out.println(mrl);
if (mrl == null) {
System.err.println("Can't build MRL for RTP");
System.exit(-1);
}
// Create a player for this rtp session
Player player = null;
try {
player = Manager.createPlayer(mrl);
} catch (Exception e) {
System.err.println("Error:" + e);
System.exit(-1);
}
//System.out.println(player);
if (player != null) {
System.out.println("Player created.");
player.realize();
while (player.getState() != Player.Realized){
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
player.start();
} else {
System.err.println("Player doesn't created.");
System.exit(-1);
}
}
}
\发送线程
public void run() {
AudioFormat format= new AudioFormat(AudioFormat.LINEAR,8000,8,1);
Vector devices=CaptureDeviceManager.getDeviceList(format);
CaptureDeviceInfo di=null;
if (devices.size() > 0) {
di = (CaptureDeviceInfo) devices.elementAt( 0);
}
else {
System.out.println("hii");
System.exit(-1);
}
Processor processor = null;
try {
processor = Manager.createProcessor (di.getLocator());
} catch (Exception e) {
System.exit(-1);}
// configure the processor
processor.configure();
while (processor.getState() != Processor.Configured){
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
processor.setContentDescriptor(
new ContentDescriptor( ContentDescriptor.RAW));
TrackControl track[] = processor.getTrackControls();
boolean encodingOk = false;
for (int i = 0; i < track.length; i++) {
if (!encodingOk && track[i] instanceof FormatControl) {
if (((FormatControl)track[i]).
setFormat( new AudioFormat(AudioFormat.GSM_RTP,
8000,
8,
1)) == null) {
track[i].setEnabled(false);
}
else {
encodingOk = true;
}
} else {
// we could not set this track to gsm, so disable it
track[i].setEnabled(false);
}
}
if (encodingOk) {
processor.realize();
while (processor.getState() != Processor.Realized){
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// get the output datasource of the processor and exit
// if we fail
DataSource ds = null;
try {
ds = processor.getDataOutput();
} catch (NotRealizedError e) {
System.exit(-1);
}
// hand this datasource to manager for creating an RTP
// datasink our RTP datasink will multicast the audio
try {
String url= "rtp://"+ip+":"+port+"/audio/16";
MediaLocator m = new MediaLocator(url);
DataSink d = Manager.createDataSink(ds, m);
d.open();
d.start();
processor.start();
} catch (Exception e) {
System.exit(-1);
}
}
}
public void run(){
AudioFormat格式=新的AudioFormat(AudioFormat.LINEAR,8000,8,1);
向量设备=CaptureDeviceManager.getDeviceList(格式);
CaptureDeviceInfo di=null;
如果(devices.size()>0){
di=(CaptureDeviceInfo)设备。elementAt(0);
}
否则{
System.out.println(“hii”);
系统退出(-1);
}
处理器=空;
试试{
processor=Manager.createProcessor(di.getLocator());
}捕获(例外e){
System.exit(-1);}
//配置处理器
processor.configure();
while(processor.getState()!=processor.Configured){
试一试{
睡眠(100);
}捕捉(中断异常e){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}
processor.setContentDescriptor(
新的ContentDescriptor(ContentDescriptor.RAW));
TrackControl track[]=处理器。getTrackControls();
布尔编码OK=false;
对于(int i=0;i
}我认为B应该与C建立单独的连接,并将数据包从a转发到C。