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• Python : movie stream into pygame

  4 mars 2019, par user1533267

  Quick challenge :

  I’m streaming part of my desktop screen trough the network using the following :

  Server

  $ ffmpeg -f x11grab -s 800x600 -r 30 -i :100 -an -q 10 -f mjpeg - | nc -lp 5000 

  Client

  $ nc <computer address="address"> 5000 | ffplay -
  
  </computer>

  I would like to display the following stream inside my pygame opengl window on the client, I read some documents on pygame.movie and found :

  "Load a new MPEG movie stream from a file or a python file object."

  Would it be possible to load the stream into pygame ?
  I need it to be as responsive as possible, and right now im seeing about 500ms lag.

  Any ideas ?

  Thanks.

• 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());
  
      }
  
  
  
  }

  
  

• ffmpeg opening video file at lower bitrate

  23 février 2018, par Xeno Boss

  I have a php page which runs ffmpeg from shell with the exec() function as follows ffmpeg -i rtsp://address:port/stream -b:v 512k output.mp4 and since many people could visit the page at once it could fire up many ffmpeg processes for different rtsp streams simultaneously which will eat up my bandwidth.
  Is there some way for me to reduce the bitrate at which the streams are opened ?

  Note : I assumed the bitrate is the most effective factor for reducing bandwidth, please correct me if you have any better suggestions.