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• I have an audio data stream from ffmpeg, how can I play it in a browser ?

  9 novembre 2013, par Conor Patrick

  I've been able to successfully stream live audio from my mic to my node server. I would now like to stream that to all connected clients. I have been trying to do it with web sockets.

  I'm streaming the audio with this command

  ffmpeg -f alsa -i hw:0 -acodec mp2 -f mp3 -r 30 http://localhost:8086

  Node gets the buffer array and I write it to all connected clients like so with the 'ws' package

  // HTTP Server to accept incomming MP3 Stream (audio)
  
  var audioServer = require('http').createServer( function(request, response) {
  
  
  
         audioSocket.broadcast(data, {binary:true});
  
  
  
  }).listen(8086);
  
  
  
  var audioSocket = new (require('ws').Server)({port: 8088});
  
  audioSocket.broadcast = function(data, opts) {
  
  
  
      for( var i in this.clients ) {
  
          this.clients[i].send(data);
  
      }
  
  };

  Any idea of how I can play this data on a browser ? I tried following this topic but the decodeAudioData() method fails.

  My client side code

  node={};
  
  var audio = new WebSocket('ws://localhost:8088/');
  
  audio.binaryType = "arraybuffer";
  
  var context = new webkitAudioContext();
  
  
  
  audio.onmessage = function(data){
  
      node.buf=data.data;
  
      node.sync=0;
  
      node.retry=0;
  
      decode(node);
  
  }
  
  
  
  function syncStream(node){ // should be done by api itself. and hopefully will.
  
      var buf8 = new Uint8Array(node.buf); 
  
      buf8.indexOf = Array.prototype.indexOf;
  
      var i=node.sync, b=buf8;
  
      while(1) {
  
          node.retry++;
  
          i=b.indexOf(0xFF,i); if(i==-1 || (b[i+1] & 0xE0 == 0xE0 )) break;
  
          i++;
  
      }
  
      if(i!=-1) {
  
          var tmp=node.buf.slice(i); //carefull there it returns copy
  
          delete(node.buf); node.buf=null;
  
          node.buf=tmp;
  
          node.sync=i;
  
          return true;
  
      }
  
      return false;
  
  }
  
  
  
  function decode(node) {
  
      context.decodeAudioData(node.buf,
  
      function(decoded){
  
          node.source  = context.createBufferSource();
  
          node.source.connect(context.destination);
  
          node.source.buffer=decoded; 
  
          node.source.noteOn(context.currentTime);
  
          console.log('IT WORKED!  DECODED', decoded);
  
      },
  
      function(){ // only on error attempt to sync on frame boundary
  
          //console.log('error');
  
          if(syncStream(node)) decode(node);
  
      });
  
  }

• Revision 8830772370 : Multi-arf : Add code to turn it on and off. Add test code to turn multi-arf on a

  30 juin 2014, par Paul Wilkins

  Changed Paths :
   Modify /vp9/encoder/vp9_encoder.c

  
   Modify /vp9/encoder/vp9_encoder.h

  
   Modify /vp9/encoder/vp9_firstpass.c

  
  
  Multi-arf : Add code to turn it on and off.

  Add test code to turn multi-arf on and off depending
  on group length and zero motion.

  Changes to active max group length for mult-arf.

  Fund second arf only from normal frame bits.

  Change-Id : I920287fac1c886428c15a39f731a25d07c2b796c

• Revision 83646 : Bug de vérification de la saisie Destinataires. Car sa valeur c’est ...

  12 juillet 2014, par rastapopoulos@… — Log

  Bug de vérification de la saisie Destinataires. Car sa valeur c’est toujours un tableau, or si on a activé un premier choix vide, ça fait un tableau non vide, donc l’obligation n’était pas bien vérifiée.