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• Restrict bandwidth usage in cloud game server

  13 décembre 2012, par Nandy

  I am working on cloud game server development.

  During the testing of some games, there is a spike observed of around 10 MBps. Normally game consumes 4 6 MBps network bandwidth.

  Is there any way to keep consumed bandwidth <5 MBps without much affecting video quality ?

  720p resolution is being used. We are using x264 encoder, are there any params of this encoder which may help me out to achieve expected o/p ?

• Is there a way to stream download a mp3 file that is being converted on a nodejs server ?

  19 février 2019, par Thriskel

  I am looking for a way to send the url to the nodejs server and respond the user with the mp3 file download.

  I searched some examples, and read about requests and responses, but I am not sure what the problem really is.

  This is the Javascript for the HTML :

      var downloadBtn = document.querySelector('.download_button');
  
      var URLinput = document.querySelector('#myUrl');
  
  
  
      downloadBtn.addEventListener('click', () => {
  
          console.log(`URL: ${URLinput.value}`);
  
          sendURL(URLinput.value);
  
      });
  
  
  
      function sendURL(URL) {
  
          window.location.href = `http://localhost:4000/download?URL=${URL}`;
  
      }

  This is the Javascript for the Nodejs server :

  const express = require('express');
  
  const cors = require('cors');
  
  const ytdl = require('ytdl-core');
  
  const app = express();
  
  const ffmpeg = require('fluent-ffmpeg')
  
  app.use(cors());
  
  
  
  app.listen(4000, () => {
  
      console.log('Server Works !!! At port 4000');
  
  });
  
  
  
  app.get('/download', (req,res) => {
  
  var URL = req.query.URL;
  
  
  
  res.header('Content-Disposition', 'attachment; filename="file.mp3"');
  
  let stream = ytdl(URL, { 
  
    quality: 'highestaudio',
  
  }); //HERE THE STREAM FILE IS SELECTED TO BE CONVERTED TO MP3
  
  
  
  ffmpeg(stream)
  
    .audioBitrate(128)
  
    .pipe(res); // HERE IS CONVERTED AND WHERE I WANT IT TO SEND IT AS A DOWNLOAD TO THE USER.
  
  });

  I expected it to stream download the file but instead it gets me to the nodejs server page to /download/url_to_vid

• Using ffmpeg to build a streaming server to stream static media files (broadcast behaviour)

  15 février 2018, par MiDaa

  I’ve read some online articles and SO questions, most of them are about streaming MY video to SERVER like youtube or switch.

  This is about a project of interest, here are what it should do.

  • Work on a Linux server
  • Serve media(preferably multiple format like mp4 mkv) files to client through rtp protocol maybe ?
  • Server could set a specific time to start the streaming or end it
  • Server could pause and resume the streaming(?)
  • Multiple clients connect and play the stream at same time(sounds like a basic feature)

  After some research, I found that ffmpeg is a great open-source candidate for such a project but as a newbie in this area, I’m having a tough time understanding how this whole thing work.

  As this(ffmpeg doc) states, it looks like just a one liner command. But I don’t find anything fit my feature listed above.

  Can ffmpeg be used to achieve those ? If not appriciate any suggesstion on where I should be looking at.

  EDIT :

  • Target devices : iPad,iPhone, Android phones should be able to watch the stream using a web browser(assume a modern browser)