如何在JMF中中断音频rtp会话

Question

晚上好，我正在实现一个在同一台计算机上运行2个rtp会话的JMF项目。rtp会话可以初始化和启动，但是如何中断其中一个会话呢?而不是在同一台计算机上运行2个rtp会话，是否有一种方法让JMF中断/保持rtp会话?这条信息有一些代码。

transmitA和transmitB几乎是相同的代码，它们从本地计算机获取LINEAR声音并将其转换为GSM_RTP或ULAW_RTP，只是发送端口不相同。最后将mediallocator的数据链接到另一台计算机。

Thread transmitA = new Thread() {
        public void run() {
            transmitA();
        }
    };
        Thread transmitB = new Thread() {
        public void run() {
            transmitB();
        }
    };

中断条件

transmitA.start();
trasmitB.start();
while (...) {
       if (...) {
           //interrupt transmitA
           transmitA.interrupt();
           transmitA.stop();
           } /*else if (...) {
                       //interrupt transmitB
                       transmitB.interrupt();
                       transmitB.stop();
                     }*/                      
            }//notation end here

中断线程和中断rtp会话是不一样的。如何中断或只是使一个rtp会话传输到另一台计算机?我要在赛道上做点什么吗?或处理器?

transmitA ()

public void transmitA(){
        // First find a capture device that will capture linear audio
        // data at 8bit 8Khz 
        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 {
            // exit if we could not find the relevant capturedevice. 
            System.exit(-1); 
        }
        // Create a processor for this capturedevice & exit if we 
        // cannot create it 
        Processor processor = null;
        try { 
                processor = Manager.createProcessor(di.getLocator());
        } catch (IOException e) { 
            System.exit(-1); 
        } catch (NoProcessorException 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;
       // Go through the tracks and try to program one of them to
       // output gsm data. 
        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); 
            } 
        }
        // At this point, we have determined where we can send out 
        // gsm data or not. 
        // realize the processor 
        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://192.168.1.3:22222/audio/16";
                //String url= "rtp://224.0.0.1:22224/audio/16";
                MediaLocator m = new MediaLocator(url); 
                DataSink d = Manager.createDataSink(ds, m);
                d.open();
                d.start();
                processor.start();
            } catch (Exception e) {
                System.out.println("cannot find the receiver address!!!");
                System.exit(-1);
            }     
        } 
    }

需要一些提示和指导方针，感谢在先进^^"

Answer 1

试了又试，终于成功了…只是删除了线程并直接使用该方法，我不知道这是否是一个好的编程实践，但任何建议都将非常感谢…

private DataSink d = null;
private Processor processor = null;
while (...) {
   if (...) {
       //interrupt transmitA
       processor.stop();
       processor.close();
       processor.deallocate();
       processor = null;
       d.close();
       d = null;
       transmitA();
       } /*else if (...) {
                   //interrupt transmitB
                   processor.stop();
                   processor.close();
                   processor.deallocate();
                   processor = null;
                   d.close();
                   d = null;
                   transmitB.stop();
                 }*/                      
        }//notation end here