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• How see if the client aborted the request in nodejs

  9 février 2023, par Pitzho

  I'm trying do a mp4 converter, but if the client cancel the request, continues the conversion, how I stop the conversion if the client cancel the request ?

  


  Code from conversor :

  


      // Start the ffmpeg child process
    const ffmpegProcess = cp.spawn(ffmpeg, [
    // Remove ffmpeg's console spamming
    '-loglevel', '8', '-hide_banner',
    // Redirect/Enable progress messages
    '-progress', 'pipe:3',
    // Set inputs
    '-i', 'pipe:4',
    '-i', 'pipe:5',
    // Map audio & video from streams
    '-map', '0:a',
    '-map', '1:v',
    // Keep encoding
    '-c:v', 'copy',
    // Define output file
    token + formato,
  ], {
    windowsHide: true,
    stdio: [
      /* Standard: stdin, stdout, stderr */
      'inherit', 'inherit', 'inherit',
      /* Custom: pipe:3, pipe:4, pipe:5 */
      'pipe', 'pipe', 'pipe', 'pipe'
    ],
  });

  ffmpegProcess.stdio[3].on('data', (err) => {
    console.log(res.status())
  });
  
  audio.pipe(ffmpegProcess.stdio[4]);
  video.pipe(ffmpegProcess.stdio[5]);
  
  ffmpegProcess.stdio[6].on('error', (err) => {
    // Remover token do objeto
    delete inUseTokens[token];
    res.status(500).send(err.message);
  });

  ffmpegProcess.stdio[6].on('close', () => {
    console.log("convertido!")
    res.render('downloated', {formato: formato, title: titulo, token: token, thumbnail: thumbnail, seconds: seconds})
    })
  });


  


  I don't know how I can solve this...

  


• Auto delete .ts and .m3u8 files once client receives all .ts files

  11 mars 2019, par Abhishek Mehandiratta

  So I created an express server that gets an mp3 file (which is stored locally right now, but will be taken from mongo db later) and uses ffmpeg to make .m3u8 and .ts files. The files are successfully sent to the client and there are no errors while playing it on the client. I used hls.js to play these files in Chrome. But the server still has those files stored locally. Is there any way the server can know when to delete these files that it stored locally ? There are a lot of files generated by ffmpeg so I can’t just let them stay there forever.

  I used the ffmpeg part of code from hls-server github repo.

  my server file

  index.js

  // just used to run ffmpeg for conversion
  
  var command = ffmpeg('inp.mp3')
  
    .on('start', function (commandLine) {
  
      console.log('command', commandLine);
  
    }).addOptions([
  
      '-c:a aac',
  
      '-b:a 64k',
  
      '-vn',
  
      '-hls_list_size 0',
  
      '-segment_time 10',
  
    ]).output('files\\output.m3u8');
  
  
  
  var express = require('express');
  
  var app = express();
  
  // express middleware to serve individual .ts and .m3u8 files when requested
  
  app.use(express.static('./files/'));
  
  
  
  app.get('/', function (req, res) {
  
    command.on('end', function () {
  
      console.log('done');
  
      res.write(`
  
      <code class="echappe-js">&lt;script src=&quot;https://cdn.jsdelivr.net/hls.js/latest/hls.min.js&quot;&gt;&lt;/script&gt;
      
  &lt;script&gt;<br />
  
        function onLevelLoaded (event, data) {<br />
  
          var level_duration = data.details.totalduration;<br />
  
          console.log(level_duration, data);<br />
  
        }<br />
  
        if(Hls.isSupported()) {<br />
  
          var audio = new Audio();<br />
  
          var hls = new Hls();<br />
  
          // requesting files from here<br />
  
          hls.loadSource('http://localhost:8000/output.m3u8');<br />
  
          hls.attachMedia(audio);<br />
  
          hls.on(Hls.Events.LEVEL_LOADED, onLevelLoaded);<br />
  
          hls.on(Hls.Events.FRAG_BUFFERED, (e, d) =&gt; {<br />
  
            console.log(e, d);<br />
  
          });<br />
  
        }<br />
  
      &lt;/script&gt;
      
  `) ;
  
      res.end() ;
  
    }).run() ;
  
  }) ;
  app.listen(8000) ;
  
  
  

• What is wrong with this code ? Not working on Windows 10 / Ubuntu 14

  3 avril 2017, par Somename

  Trying to convert a .gif to .mp4 :

  var express = require('express');
  
  var bodyParser = require('body-parser');
  
  var app = express();
  
  var ffmpeg = require('fluent-ffmpeg');  
  
  
  
  var proc = new ffmpeg({ source: 'myfile.gif' })
  
    .withAspect('4:3')
  
    .withSize('640x480')
  
    .applyAutopadding(true, 'white')
  
    .saveToFile('myfile.avi', function(stdout, stderr) {
  
      console.log('file has been converted succesfully');
  
    });
  
  
  
  app.listen(3000, function() {  
  
      console.log("Server Running on 3000");
  
  });

  Getting the same error on Windows 10 and Ubuntu 14 : Error: Cannot find ffmpeg.

  What is wrong with the code ? Please help.