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• How to load a custom java module into Wowza Streaming Engine ?

  27 octobre 2018, par kw3rti

  I’ve followed the tutorial below step by step, however, the module I’ve created does not appear to load or execute, as I’m not seeing any log entries relating to the getLogger calls in the Wowza Streaming Engine. More specifically, I have created a new Wowza project containing a new module (see code below). Eclipse has then created a jar file in the lib folder of the install directory. I have added the module to a live application on the streaming server. I have also edited the Application.xml file to include the new module.

  To hopefully run the module I’ve written, I am streaming an mp4 file using ffmpeg (according to documentation here) to the streaming engine (via the live application), which I can see in the test players. My understanding was that this would trigger at least one of the event listeners in the module. However, nothing appears to come up in the logs. The only entries related to the stream that I can see are shown below.

  I’ve been trying to debug what’s going wrong for quite a while now, so I’d appreciate any suggestions of what might fix the issue.

  https://www.wowza.com/docs/How-to-extend-Wowza-Streaming-Engine-using-Java

  public class GCStreamModule extends ModuleBase {
  
  
  
      public void onAppStart(IApplicationInstance appInstance) {
  
          String fullname = appInstance.getApplication().getName() + "/" + appInstance.getName();
  
          getLogger().info("onAppStart: " + fullname);
  
      }
  
  
  
      public void onAppStop(IApplicationInstance appInstance) {
  
          String fullname = appInstance.getApplication().getName() + "/" + appInstance.getName();
  
          getLogger().info("onAppStop: " + fullname);
  
      }
  
  
  
      public void onConnect(IClient client, RequestFunction function, AMFDataList params) {
  
          getLogger().info("onConnect: " + client.getClientId());
  
      }
  
  
  
      public void onConnectAccept(IClient client) {
  
          getLogger().info("onConnectAccept: " + client.getClientId());
  
      }
  
  
  
      public void onConnectReject(IClient client) {
  
          getLogger().info("onConnectReject: " + client.getClientId());
  
      }
  
  
  
      public void onDisconnect(IClient client) {
  
         getLogger().info("onDisconnect: " + client.getClientId());
  
      }
  
  
  
      public void onStreamCreate(IMediaStream stream) {
  
          getLogger().info("onStreamConnect");
  
      }
  
  
  
      public void onMediaStreamCreate(IMediaStream stream){
  
          getLogger().info("onMediaStreamCreate: " + stream.getSrc());
  
      }
  
  
  
  }

  
  

• Java infinite video stream loop

  30 juin 2021, par Jason Roufael

  i wanna add a loop to make the process go in an infinite loop so the video can keep repeating itself

  


  try {&#xA;var processBuilder = new ProcessBuilder();&#xA;List<string> cmds=new ArrayList&lt;>();&#xA;cmds.add("ffmpeg.exe");&#xA;cmds.add("-i");&#xA;cmds.add("C:\\ffmpeg\\bin\\inpiit.mp4");&#xA;cmds.add("-vcodec");&#xA;cmds.add("libx264");&#xA;cmds.add("-acodec");&#xA;cmds.add("mp2");&#xA;cmds.add("-f");&#xA;cmds.add("mpegts");&#xA;cmds.add("udp://224.5.5.5:1234?pkt_size=1316");&#xA;processBuilder.command(cmds);&#xA;var process = processBuilder.start();&#xA;&#xA;} catch(IOException ex) {&#xA;&#xA;ex.printStackTrace(); &#xA;</string>

  


  }

  


• What is the full code to execute a ffmpeg command in java [on hold]

  16 janvier 2015, par user2303069

  I did the following and only got 0kb output file :
  File encodingFile = new File("c :\ffmpeg\bin\output.mp4") ;
  encodingFile.createNewFile() ;

                      Process process = new ProcessBuilder("c:\\ffmpeg\\bin\\ffmpeg.exe", "-i", "c:\\ffmpeg\\bin\\input.mp4", 
  
                              "-y", "-s", "1440" + "x" + "-1", "-vcodec", "libx264", "c:\\ffmpeg\\bin\\outfile.mp4").start();
  
  
  
                      is = process.getInputStream();
  
  
  
                      byte[] resultBuff = new byte[0];
  
                      byte[] buff = new byte[1024];
  
                      int k = -1;
  
                      while((k = is.read(buff, 0, buff.length)) > -1) {
  
                          byte[] tbuff = new byte[resultBuff.length + k]; // temp buffer size = bytes already read + bytes last read
  
                          System.arraycopy(resultBuff, 0, tbuff, 0, resultBuff.length); // copy previous bytes
  
                          System.arraycopy(buff, 0, tbuff, resultBuff.length, k);  // copy current lot
  
                          resultBuff = tbuff; // call the temp buffer as your result buff
  
                      }
  
                      fos=new FileOutputStream(encodingFile);
  
                      fos.write(resultBuff, 0,resultBuff.length );
  
                      gui.textArea1.append("\n"+resultBuff.length + " bytes read.");
  
                      //return resultBuff;
  
                      try {
  
                          // if you want to wait for the process to finish
  
                          process.waitFor();
  
                           gui.textArea1.append("\n+++++++Finished while converting!++++++++\n");
  
                      } catch (InterruptedException ex) {
  
                           gui.textArea1.append("\nInterruptedException: "+ex.getMessage());
  
                      }
  
  
  
                  }catch(IOException ex){
  
                      gui.textArea1.append("\nIOException converting: "+ex.getMessage());
  
                  }finally{
  
                      try{
  
                          if(is!=null){
  
                              is.close();
  
                          }
  
                          if(fos!=null){
  
                              fos.close();
  
                          }
  
                      }catch(IOException ioe){
  
                          gui.textArea1.append("\nClosing streams while converting:"+ioe.getMessage());
  
                      }
  
                  }

  My question is how to get back a converted file using ffmpeg in java. So far I got empty files. It’s like nothing happens during the converting process. I got the code from web(here) and modified it according to my desire so can you just tell me how to do this correctly ? Thanks a lot.