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• Live streaming doesn't work

  18 octobre 2017, par John Smith

  I’m using FFmpeg to capture my screen :

  ffmpeg -f dshow -i video="UScreenCapture" -r 5 -s 640x480 -acodec libmp3lame -ac 1 -vcodec mpeg 4 -vtag divx -q 10 -f mpegts tcp://127.0.0.1:1234

  so let it stream to somewhere. The accepter script :

   error_reporting(E_ALL); /* Allow the script to hang around waiting for connections. */
  
   set_time_limit(30); /* Turn on implicit output flushing so we see what we're getting as it comes in. */
  
   ob_implicit_flush();
  
  
  
  
  
  $address = '127.0.0.1';
  
  $port = 1234;
  
  $outfile = dirname(__FILE__)."/output.flv";
  
  $ofp = fopen($outfile, 'wb');
  
  
  
   if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) { echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n"; sleep (5); die; }
  
   if (socket_bind($sock, $address, $port) === false) { echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); die; }
  
   if (socket_listen($sock, 5) === false) { echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); die; }
  
   if (($msgsock = socket_accept($sock)) === false) { echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n"; sleep (5); break; }
  
   do {
  
      $a = '';
  
      socket_recv ($msgsock, $a, 65536, MSG_WAITALL);
  
      fwrite ($ofp, $a);
  
      //echo strlen($a)."\r\n";
  
   } while (true);

  it seems to save the stuff to the disk OK. Now here comes the html :

  I dont really know how to do this, but based on an example :

  <video src="/output.flv"></video>

  but it doesn’t do anything. And if I want to stream the live incoming stuff, then what’s the matter ?

• Using ffmpeg to stream from my camera to AWS MediaLive ?

  25 juin 2018, par Ketaki Tilak

  I have a whole downstream set up consisting of AWS MediaLive->MediaPackage->Cloudfront.
  I’m looking to stream directly from my camera to MediaLive. This requires my camera to produce an RTMP stream, and have an IP address. I’m not quite sure how to put that together. Some background information would be appreciated.
  Setting up my own server isn’t a feasible option. I was wondering if there was a way to use fmmpeg and other services to stream in this manner ?

• POST 500 Error (BrokenPipeError) when launching Video Stream

  2 décembre 2015, par Charlie

  I’m using Python 3.4.1, nodejs and a Python server to stream video to my browser.

  • The list of videos to play is stored in JSON.

  • I launch the Python server & the nodejs server.

    > node server.js
    
    Listening for MPEG Stream on http://serverIP:port1
    
    Awaiting WebSocket connections on ws://serverIP:port2/

  My Python method streams the video using port1, then in the browser I use a jsmpg canvas connected to port2.

      var client = new WebSocket( 'ws://serverIP:port2/' );

  All this works fine in local.

  But when using it on the server, we get a POST 500 (Internal Server Error).
  In shell, the error is :

  pipes[0].stdin.write(Video_editor.clip_final.get_frame(intervals[i][1] + float(t)/thefps).tostring())
  
  BrokenPipeError: [Errno 32] Broken pipe

  • Both ports are open.
  • The distribution & ffmpeg versions are the same, on my machine & on the server.

  I’ve found similar questions here, but none fitting my configuration. My code is as below. Thanks in advance :)

  def stream_video(self, address):
  
  
  
      #We create one pipe and one command per sequence. Then, for
  
      #each interval of time out of a composition, we run the basic
  
      #streaming. Otherwise, we run the corresponding streaming
  
      fp = open("log_stream.txt", "w") # just log purpose
  
      ff_cmds = [ffmpeg.FFmpeg_command_builder().get_main_command(address, Video_editor.clip_final)]
  
      pipes = [sp.Popen(ff_cmds[-1], stdout = DEVNULL, stdin=sp.PIPE, stderr=fp)]
  
      intervals = [[False, 0]]
  
  
  
      for val in Video_editor.ffmpeg_compositions:
  
          ff_cmds.append(ffmpeg.FFmpeg_command_builder().get_overlay_command(address, Video_editor.clip_final, val[0], val[2], val[3], val[4], val[5]))
  
          pipes.append(sp.Popen(ff_cmds[-1], stdout = DEVNULL, stdin=sp.PIPE, stderr=fp))
  
  
  
          intervals.append([True, val[1]])
  
          intervals.append([False, val[1] + val[2]])
  
  
  
      intervals.append([False, Video_editor.clip_final.end])
  
  
  
      i = 0
  
      n = 0
  
      for i in range(len(intervals) - 1):
  
          print("Interval", intervals[i], intervals[i+1])
  
          if intervals[i][0]:
  
              n += 1
  
  
  
          for t in range(int(Video_editor.clip_final.fps*(intervals[i+1][1] - intervals[i][1]))):
  
              if intervals[i][0]:                                  
  
                  pipes[n].stdin.write(Video_editor.clip_final.get_frame(intervals[i][1] + float(t)/Video_editor.clip_final.fps).tostring())
  
              else:
  
                  pipes[0].stdin.write(Video_editor.clip_final.get_frame(intervals[i][1] + float(t)/Video_editor.clip_final.fps).tostring())
  
  
  
      for pipe in pipes:
  
          pipe.terminate()