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Sur d’autres sites (10930)

  • RTP packets detected as UDP

    28 février 2017, par user3172852

    Here is what I am trying to do :

    WebRTC endpoint > RTP Endpoint > ffmpeg > RTMP server.

    This is what my SDP file looks like.

    var cm_offer = "v=0\n" +
    
              "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
    
              "s=nginx\n" +
    
              "c=IN IP4 127.0.0.1\n" +
    
              "t=0 0\n" +
    
              "m=audio 60820 RTP/AVP 0\n" +
    
              "a=rtpmap:0 PCMU/8000\n" +
    
              "a=recvonly\n" +
    
              "m=video 59618 RTP/AVP 101\n" +
    
              "a=rtpmap:101 H264/90000\n" +
    
              "a=recvonly\n";

    What’s happening is that wireshark can detect the incoming packets at port 59618, but not as RTP packets but UDP packets. I am trying to capture the packets using ffmpeg with the following command :

    ubuntu@ip-132-31-40-100:~$ ffmpeg -i udp://127.0.0.1:59618 -vcodec copy stream.mp4
    
ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
    
  libavutil      55. 44.100 / 55. 44.100
    
  libavcodec     57. 75.100 / 57. 75.100
    
  libavformat    57. 63.100 / 57. 63.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 69.100 /  6. 69.100
    
  libavresample   3.  2.  0 /  3.  2.  0
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100

    All I get is a blinking cursor and The stream.mp4 file is not written to disk after I exit (ctrl+c).

    So can you help me figure out :

    1. why wireshark cannot detect the packets as RTP (I suspect it has something to do with SDP)
    2. How to handle SDP answer when the RTP endpoint is pushing to ffmpeg which doesn’t send an answer back.

    Here is the entire code (hello world tutorial modified)

    /*
    
     * (C) Copyright 2014-2015 Kurento (http://kurento.org/)
    
     *
    
     * Licensed under the Apache License, Version 2.0 (the "License");
    
     * you may not use this file except in compliance with the License.
    
     * You may obtain a copy of the License at
    
     *
    
     *   http://www.apache.org/licenses/LICENSE-2.0
    
     *
    
     * Unless required by applicable law or agreed to in writing, software
    
     * distributed under the License is distributed on an "AS IS" BASIS,
    
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    
     * See the License for the specific language governing permissions and
    
     * limitations under the License.
    
     */
    

    
    function getopts(args, opts)
    
    {
    
      var result = opts.default || {};
    
      args.replace(
    
          new RegExp("([^?=&]+)(=([^&]*))?", "g"),
    
          function($0, $1, $2, $3) { result[$1] = decodeURI($3); });
    

    
      return result;
    
    };
    

    
    var args = getopts(location.search,
    
    {
    
      default:
    
      {
    
        ws_uri: 'wss://' + location.hostname + ':8433/kurento',
    
        ice_servers: undefined
    
      }
    
    });
    

    
    function setIceCandidateCallbacks(webRtcPeer, webRtcEp, onerror)
    
    {
    
      webRtcPeer.on('icecandidate', function(candidate) {
    
        console.log("Local candidate:",candidate);
    

    
        candidate = kurentoClient.getComplexType('IceCandidate')(candidate);
    

    
        webRtcEp.addIceCandidate(candidate, onerror)
    
      });
    

    
      webRtcEp.on('OnIceCandidate', function(event) {
    
        var candidate = event.candidate;
    

    
        console.log("Remote candidate:",candidate);
    

    
        webRtcPeer.addIceCandidate(candidate, onerror);
    
      });
    
    }
    

    

    
    function setIceCandidateCallbacks2(webRtcPeer, rtpEp, onerror)
    
    {
    
      webRtcPeer.on('icecandidate', function(candidate) {
    
        console.log("Localr candidate:",candidate);
    

    
        candidate = kurentoClient.getComplexType('IceCandidate')(candidate);
    

    
        rtpEp.addIceCandidate(candidate, onerror)
    
      });
    
    }
    

    

    
    window.addEventListener('load', function()
    
    {
    
      console = new Console();
    

    
      var webRtcPeer;
    
      var pipeline;
    
      var webRtcEpt;
    

    
      var videoInput = document.getElementById('videoInput');
    
      var videoOutput = document.getElementById('videoOutput');
    

    
      var startButton = document.getElementById("start");
    
      var stopButton = document.getElementById("stop");
    

    
      startButton.addEventListener("click", function()
    
      {
    
        showSpinner(videoInput, videoOutput);
    

    
        var options = {
    
          localVideo: videoInput,
    
          remoteVideo: videoOutput
    
        };
    

    

    
        if (args.ice_servers) {
    
         console.log("Use ICE servers: " + args.ice_servers);
    
         options.configuration = {
    
           iceServers : JSON.parse(args.ice_servers)
    
         };
    
        } else {
    
         console.log("Use freeice")
    
        }
    

    
        webRtcPeer = kurentoUtils.WebRtcPeer.WebRtcPeerSendrecv(options, function(error)
    
        {
    
          if(error) return onError(error)
    

    
          this.generateOffer(onOffer)
    
        });
    

    
        function onOffer(error, sdpOffer)
    
        {
    
          if(error) return onError(error)
    

    
          kurentoClient(args.ws_uri, function(error, client)
    
          {
    
            if(error) return onError(error);
    

    
            client.create("MediaPipeline", function(error, _pipeline)
    
            {
    
              if(error) return onError(error);
    

    
              pipeline = _pipeline;
    

    
              pipeline.create("WebRtcEndpoint", function(error, webRtc){
    
                if(error) return onError(error);
    

    
                webRtcEpt = webRtc;
    

    
                setIceCandidateCallbacks(webRtcPeer, webRtc, onError)
    

    
                webRtc.processOffer(sdpOffer, function(error, sdpAnswer){
    
                  if(error) return onError(error);
    

    
                  webRtcPeer.processAnswer(sdpAnswer, onError);
    
                });
    
                webRtc.gatherCandidates(onError);
    

    
                webRtc.connect(webRtc, function(error){
    
                  if(error) return onError(error);
    

    
                  console.log("Loopback established");
    
                });
    
              });
    

    

    

    
            pipeline.create("RtpEndpoint", function(error, rtp){
    
                if(error) return onError(error);
    

    
                //setIceCandidateCallbacks2(webRtcPeer, rtp, onError)
    

    

    
                var cm_offer = "v=0\n" +
    
                      "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
    
                      "s=nginx\n" +
    
                      "c=IN IP4 127.0.0.1\n" +
    
                      "t=0 0\n" +
    
                      "m=audio 60820 RTP/AVP 0\n" +
    
                      "a=rtpmap:0 PCMU/8000\n" +
    
                      "a=recvonly\n" +
    
                      "m=video 59618 RTP/AVP 101\n" +
    
                      "a=rtpmap:101 H264/90000\n" +
    
                      "a=recvonly\n";
    

    

    

    
                rtp.processOffer(cm_offer, function(error, cm_sdpAnswer){
    
                  if(error) return onError(error);
    

    
                  //webRtcPeer.processAnswer(cm_sdpAnswer, onError);
    
                });
    
                //rtp.gatherCandidates(onError);
    

    
                webRtcEpt.connect(rtp, function(error){
    
                  if(error) return onError(error);
    

    
                  console.log("RTP endpoint connected to webRTC");
    
                });
    
              });
    

    

    

    

    

    

    

    

    

    
            });
    
          });
    
        }
    
      });
    
      stopButton.addEventListener("click", stop);
    

    

    
      function stop() {
    
        if (webRtcPeer) {
    
          webRtcPeer.dispose();
    
          webRtcPeer = null;
    
        }
    

    
        if(pipeline){
    
          pipeline.release();
    
          pipeline = null;
    
        }
    

    
        hideSpinner(videoInput, videoOutput);
    
      }
    

    
      function onError(error) {
    
        if(error)
    
        {
    
          console.error(error);
    
          stop();
    
        }
    
      }
    
    })
    

    

    
    function showSpinner() {
    
      for (var i = 0; i < arguments.length; i++) {
    
        arguments[i].poster = 'img/transparent-1px.png';
    
        arguments[i].style.background = "center transparent url('img/spinner.gif') no-repeat";
    
      }
    
    }
    

    
    function hideSpinner() {
    
      for (var i = 0; i < arguments.length; i++) {
    
        arguments[i].src = '';
    
        arguments[i].poster = 'img/webrtc.png';
    
        arguments[i].style.background = '';
    
      }
    
    }
    

    
    /**
    
     * Lightbox utility (to display media pipeline image in a modal dialog)
    
     */
    
    $(document).delegate('*[data-toggle="lightbox"]', 'click', function(event) {
    
      event.preventDefault();
    
      $(this).ekkoLightbox();
    
    });

  • Merge all .h264 files in directory in alphabetical order

    9 mars 2017, par nicolashahn

    I have a camera that records in 5 second clips with filenames that are timestamps :

    2017-03-08-09-54-27.334326-000000.h264
    
2017-03-08-09-54-27.334326-000001.h264
    
2017-03-08-09-54-27.334326-000002.h264
    
2017-03-08-09-54-27.334326-000003.h264
    
...

    What is the easiest way to merge these in order into one video file on OSX ?

  • Encoding error with Sidekiq

    14 mars 2017, par DavidK

    Im following this tutorial https://www.pubnub.com/blog/2015-12-08-building-video-sharing-app-server-messaging-ruby/ on Building a Video Sharing App. Its a bit outdated and Ive already had to fix a view issues to get this far but Im pretty lost now with this latest issue. I believe its something to do with sidekiq. When I try uploading a video it seems to work and shows up on the database, but I get a "Video is still being encoded." message.

    This is the log :

    2017-03-13T22:00:14.729Z 11109 TID-ova30dq94 WebmVideoEncoder JID-540aa74110e63e334a712719 INFO: fail: 0.122 sec
    
2017-03-13T22:00:14.730Z 11109 TID-ova30dq94 WARN: {"context":"Job raised exception","job":{"class":"WebmVideoEncoder","args":[3],"retry":true,"queue":"default","jid":"540aa74110e63e334a712719","created_at":1489441065.533313,"enqueued_at":1489442414.60714,"error_message":"exception class/object expected","error_class":"TypeError","failed_at":1489441065.541595,"retry_count":6,"retried_at":1489442414.7293491},"jobstr":"{\"class\":\"WebmVideoEncoder\",\"args\":[3],\"retry\":true,\"queue\":\"default\",\"jid\":\"540aa74110e63e334a712719\",\"created_at\":1489441065.533313,\"enqueued_at\":1489442414.60714,\"error_message\":\"exception class/object expected\",\"error_class\":\"TypeError\",\"failed_at\":1489441065.541595,\"retry_count\":5,\"retried_at\":1489441667.7081149}"}
    
2017-03-13T22:00:14.730Z 11109 TID-ova30dq94 WARN: TypeError: exception class/object expected
    
2017-03-13T22:00:14.730Z 11109 TID-ova30dq94 WARN: /Users/David/rubyProjects/videouploader/videouploader/app/workers/webm_video_encoder.rb:14:in `raise'
    
/Users/David/rubyProjects/videouploader/videouploader/app/workers/webm_video_encoder.rb:14:in `perform'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:158:in `execute_job'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:138:in `block (4 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq.rb:36:in `block in '
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:133:in `block (3 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/bundler/gems/sidetiq-7bec4084165f/lib/sidetiq/middleware/history.rb:8:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/retry_jobs.rb:74:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/logging.rb:11:in `block in call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/logging.rb:32:in `with_context'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/logging.rb:7:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:133:in `invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:132:in `block (2 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:174:in `stats'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:131:in `block in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/rails.rb:106:in `block in call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/execution_wrapper.rb:85:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/reloader.rb:68:in `block in wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/execution_wrapper.rb:85:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/reloader.rb:67:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/rails.rb:105:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:126:in `process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:82:in `process_one'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:70:in `run'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/util.rb:17:in `watchdog'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/util.rb:26:in `block in safe_thread'
    
2017-03-13T22:00:50.877Z 11109 TID-ova3gyd4k ThumbnailCutter JID-d0c693e39e06c2cccdec7d33 INFO: start
    
sh: -c: line 0: syntax error near unexpected token `('
    
sh: -c: line 0: `ffmpeg -i /Users/David/rubyProjects/videouploader/videouploader/public/system/videos/video_files/000/000/002/original/Heart_of_Gold_-_Neil_Young_cover_with_harmonica.1_(1).mp4 -ss 00:00:01.000 -vframes 1 /tmp/1489442450881632.png'
    
2017-03-13T22:00:50.902Z 11109 TID-ova3gyd4k ThumbnailCutter JID-d0c693e39e06c2cccdec7d33 INFO: fail: 0.025 sec
    
2017-03-13T22:00:50.903Z 11109 TID-ova3gyd4k WARN: {"context":"Job raised exception","job":{"class":"ThumbnailCutter","args":[2],"retry":true,"queue":"default","jid":"d0c693e39e06c2cccdec7d33","created_at":1489437193.246615,"enqueued_at":1489442450.8759801,"error_message":"exception class/object expected","error_class":"TypeError","failed_at":1489437193.254677,"retry_count":7,"retried_at":1489442450.901133},"jobstr":"{\"class\":\"ThumbnailCutter\",\"args\":[2],\"retry\":true,\"queue\":\"default\",\"jid\":\"d0c693e39e06c2cccdec7d33\",\"created_at\":1489437193.246615,\"enqueued_at\":1489442450.8759801,\"error_message\":\"exception class/object expected\",\"error_class\":\"TypeError\",\"failed_at\":1489437193.254677,\"retry_count\":6,\"retried_at\":1489441044.6660218}"}
    
2017-03-13T22:00:50.903Z 11109 TID-ova3gyd4k WARN: TypeError: exception class/object expected
    
2017-03-13T22:00:50.903Z 11109 TID-ova3gyd4k WARN: /Users/David/rubyProjects/videouploader/videouploader/app/workers/thumbnail_cutter.rb:13:in `raise'
    
/Users/David/rubyProjects/videouploader/videouploader/app/workers/thumbnail_cutter.rb:13:in `perform'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:158:in `execute_job'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:138:in `block (4 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq.rb:36:in `block in '
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:133:in `block (3 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/bundler/gems/sidetiq-7bec4084165f/lib/sidetiq/middleware/history.rb:8:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/retry_jobs.rb:74:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/logging.rb:11:in `block in call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/logging.rb:32:in `with_context'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/server/logging.rb:7:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/middleware/chain.rb:133:in `invoke'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:132:in `block (2 levels) in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:174:in `stats'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:131:in `block in process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/rails.rb:106:in `block in call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/execution_wrapper.rb:85:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/reloader.rb:68:in `block in wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/execution_wrapper.rb:85:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/reloader.rb:67:in `wrap'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/rails.rb:105:in `call'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:126:in `process'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:82:in `process_one'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/processor.rb:70:in `run'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/util.rb:17:in `watchdog'
    
/Users/David/.rvm/gems/ruby-2.3.0/gems/sidekiq-4.2.9/lib/sidekiq/util.rb:26:in `block in safe_thread'

    thumbnail_cutter.rb

    class ThumbnailCutter
    
  include Sidekiq::Worker
    

    
  def perform(video_id)
    
    video = Video.find(video_id)
    
    output = "/tmp/#{Time.now.getutc.to_f.to_s.delete('.')}.png"
    
    _command = `ffmpeg -i #{video.video_file.path} -ss 00:00:01.000 -vframes 1 #{output}`
    
    if $?.to_i == 0
    
      video.thumbnail = File.open(output, 'r')
    
      video.save
    
      FileUtils.rm(output)
    
    else
    
      raise $?
    
    end
    
  end
    
end

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