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• Optimizing MP4 Video for Fast Streaming using java

  15 juin 2021, par mukesh

  Is there any Java API to Optimising MP4 Video for Fast Streaming (faststart).

  


  I have tried following command and it's worked well. but i want to achieve it by java like when i upload file it Optimise it and save to directory.

  


  String cmd = "/Downloads/ffmpeg  -i /Downloads/wall_1623406694548_slcspq.mp4 -movflags faststart -acodec copy -vcodec copy /Downloads/optimised.mp4";
Runtime run = Runtime.getRuntime();
Process pr = run.exec(cmd);
pr.waitFor();
BufferedReader buf = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String line = "";
while ((line = buf.readLine()) != null) {
    System.out.println(line);
}


  


• Streaming videos from a Java backend

  11 mai 2014, par IAmYourFaja

  I was wondering how most multimedia Java shops handle video streaming. Say I want to build a website that has a page that uses the HTML5 video player like so :

      
  
          ...
  
      
  
      
  
          ... content up here
  
  
  
          <video width="500" height="500" controls="controls" src="path/to/video.mp4"></video>
  
  
  
          ... more content down here

  Say the URL for this page is http://myapp.example.org/video. When HTTP requests for the /video path reach the myappp.example.org servers, I guess I have a few options :

  • Route the request to a web app server (Tomcat/Jetty), and try to figure out how to stream the video.mp4 video directly off that server using pure Java ; or
  • Route the request to a media server, and somehow stream video.mp4 from that media server directly back to the client ; or
    • On this end I’ve heard of servers like Red5 or Wowza
  • Route the request to a media server (again, Red5/Wowza), and somehow stream video.mp4 through the web app server acting as a middleman

  There may be other options that I’m aware of (in which case, what are they ???). My questtion :

  How is A/V streaming typically handled from behind a Java backend ?

• Streaming over RTSP using nodejs

  14 novembre 2016, par beNerd

  I am trying to stream a (.mp4) file through my nodejs server using RTSP. I searched a lot and got stumbled upon this :

  node-rstp-server

  which really looks promising.

  I tried streaming the video over rtsp and testing in VLC media player as provided in the docs like : rtps ://localhost:8080/video.mp4 and the vlc is unable to play any video. The doc for the above says that you can access streamed video using file path directly which clearly doesn’t work over RTSP.

  I did some more research and found that RTSP requires a SDP to be constructed first. What is the best way to construct a proper SDP and then RTSP it on a specific port using a path.

  (e.g rstp://112.332.3.1:8493/someFilePath)

  Excuse the terminology if it looks a bit weird, I am new to all this. I am working in a nodejs ecosystem on the server side which can easily implement a ffmpeg and my client is going to be a simple html5 app over cordova.