Recherche avancée

Sur d’autres sites (3019)

• FFMpeg + Beanstalk : How to pass the processes to it

  14 juillet 2012, par Ilia Rostovtsev

  I'm working around on the video web site ! I have a simple PHP function that is used to start complicated conversion processes. The problem is that FFMpeg and Mencoder are extremely resourceful and having one process of it is something that makes httpd slow down but multiple processes just hang it completely. I want to my conversion processes with Beanstalk (or anything else). Everything is working well right now : converting, logging and etc.

  My concrete question is : How to transfer my current jobs to Beanstalk ?

  I have very simple PHP code :

  RunInBackground('convert.php', array($initial_file_name, $vid), $LogFilePath);

  And the function looks also quite clear :

  function RunInBackground($sPHPFile, $aParam = array(), $sLogFile = '')
  
  {
  
      global $config;
  
  
  
      $sCmd = $config['phppath'] . ' ' . $config['BASE_DIR'] . '/' . $sPHPFile;
  
      foreach ($aParam as $s)
  
      {
  
          $sCmd .= ' ' . $s;
  
      }
  
  
  
  
  
          $sCmd .= ' > ' . ($sLogFile != '' ? $config['BASE_DIR'] . '/' . $sLogFile : '/dev/null');
  
  
  
          if ( iBgProc($sCmd) )
  
          {
  
              return true;
  
          }
  
          else
  
          {
  
              return false;
  
          }
  
  
  
  }
  
  
  
  function iBgProc($sCmd, $iPrio = 0)
  
  {
  
      if ($iPrio)
  
      {
  
          $iPID = shell_exec("nohup nice -n $iPrio $sCmd 2> /dev/null & echo $!");
  
      }
  
      else
  
      {
  
          $iPID = shell_exec("nohup $sCmd 2> /dev/null & echo $!");
  
      }
  
  
  
      return($iPID);
  
  }

  Now what would Beanstalk correct code would look like so these processes would NOT start all at the same time if multiple videos are uploaded ?

  If you believe that for my needs is better to use something else but Beanstalk and you know how to implement it, I would be still happy to see it !

  Thanks !

• how to set up a streaming media server with the h.264 RTP packets as input-stream

  29 septembre 2013, par chenakira

  As beginning there may be some confusion,however the destination is
  setting up a RTP stream-sever to transfer the real－time monitoring
  video to other systems over internet.

  While my input is not a local file or some other URL input streams.
  My program just gets the RTP h.264 packets,and want to use my setting-up RTP server to transfer this video.

  I've considered about using the ffmpeg+ffserver ,but ffserver.config
  file need to use the local file to configure the input source. Hope
  some guys give me some hint or any other resolution to implement my
  streaming-media server.

• How to stream an webm video through ffmpeg using node.js ?

  4 juillet 2012, par Marcos Lopes

  I have built an node.js server that gets ffmpeg video and pass it to all listeners connected, but the video doesn't play. What i'm doing wrong ?

  Here is my ffmpeg command and output : http://pastebin.com/56BMrx7V

  and in my node.js app :

  var http = require('http');
  
  
  
  var server = http.createServer(function(req, res) {  
  
      if (req.url === '/listen') {  
  
          listen(req, res);  
  
      } else if (req.url === '/publish' && req.method === 'POST') {  
  
          stream(req, res);  
  
      }  
  
  });
  
  
  
  var stream = require('stream');  
  
  var writeStream = new stream.Stream();  
  
  var listeners = [];  
  
  
  
  writeStream.writable = true;  
  
  
  
  writeStream.write = function(data) {  
  
      listeners.forEach(function(listener) {  
  
          listener.write(data);  
  
      });  
  
  };  
  
  
  
  writeStream.end = function() {  
  
      listeners.forEach(function(listener) {  
  
          listener.end();  
  
      });  
  
  };  
  
  
  
  var listen = function(req, res) {  
  
      listeners.push(res);  
  
  
  
      res.writeHead(200, {  
  
          'Date': new Date().toUTCString(),  
  
          'Connection': 'close',  
  
          'Content-Type': 'video/webm',  
  
          'Transfer-Encoding': 'chunked'  
  
      });  
  
  };  
  
  
  
  var stream = function(req, res) {  
  
      req.on('data', function(data) {  
  
          writeStream.write(data);  
  
      });  
  
  
  
      req.on('end', function() {  
  
          writeStream.end();  
  
      });  
  
  }
  
  
  
  server.listen(3000);  
  
  console.log('Listening on localhost port 3000');

  Thanks.