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• ffmpeg throws conversion error, but only if the triggering web request is made from safari ?

  22 novembre 2022, par Kyoshiro Kokujou Obscuritas

  I'm using ffmpeg to do an on-the-fly conversion of audio files to ensure high compatibility. i'm converting them to OGG. and all of this is done by a .NET 6 REST service.
This service is then accessed by a javascript Frontend.
Now the problem. The exact same request runs through without any problems on Windows + Firefox, but it does not on Safari. In Safari it says something about "unknownConversion failed"

  


  it's the same file, it's the same name, and to make sure there are no weird invisible characters i used the Microsoft File API to convert it to a proper file path.

  


  code looks like this

  


  var ffmpeg = new Process();
        var startInfo = new ProcessStartInfo("D:\\Programme\\ffmpeg\\bin\\ffmpeg.exe",
            $"-i \"{path.FullName}\" -c:a libopus -f ogg -")
        {
            RedirectStandardError = true,
            RedirectStandardOutput = true,
            RedirectStandardInput = true,
            UseShellExecute = false,
            CreateNoWindow = true
        };
        ffmpeg.EnableRaisingEvents = true;
        ffmpeg.StartInfo = startInfo;
        ffmpeg.ErrorDataReceived += OnErrorDataReceived;
        ffmpeg.Exited += OnFinished;

        ffmpeg.Start();
        ffmpeg.BeginErrorReadLine();

        return File(new BufferedStream(ffmpeg.StandardOutput.BaseStream), "audio/ogg");


  


  Complete Logs : https://pastebin.com/tTUcsjuT

  


• Nuxeo video conversion issue

  14 septembre 2016, par pradeep gowda

  I am new to nuxeo. Let me describe.

  Description :
  1. Nuxeo requires external service ffmpeg to convert video in to different formats[mp4,webm etc...]
  2. ffmpeg is installed
  3. Problem in Video conversion

  If i start nuxeo as below

  Path= $NUXEO_HOME/bin
  ./nuxeoctl start

  No issues, Works fine.

  But i am facing issue in video conversion when i start nuxeo as daemon service.

  service nuxeo start

  Below is my Bash Script :

  #!/bin/sh
  
  ### BEGIN INIT INFO
  
  # Provides:          nuxeo
  
  # Required-Start:    $local_fs $remote_fs $network $syslog
  
  # Required-Stop:     $local_fs $remote_fs $network $syslog
  
  # Default-Start:     2 3 4 5
  
  # Default-Stop:      0 1 6
  
  # Short-Description: Start/stop Nuxeo
  
  # Description:       Start/stop Nuxeo
  
  ### END INIT INFO
  
  
  
  DESC="Nuxeo"
  
  
  
  NUXEOCTL="/opt/cisco/nuxeo-cap-7.10-tomcat/bin/nuxeoctl"
  
  NUXEO_CONF="/var/lib/nuxeo/conf/nuxeo.conf"
  
  export NUXEO_CONF
  
  
  
  
  
  
  
  function start() {
  
      echo $$ > /var/run/nuxeo.pid
  
      exec $NUXEOCTL --quiet startbg
  
  }
  
  
  
  function stop() {
  
      $NUXEOCTL --quiet stop
  
      /bin/rm /var/run/nuxeo.pid
  
  }
  
  
  
  case "$1" in
  
    start)
  
          start
  
          ;;
  
    stop)
  
          stop
  
          ;;
  
    restart)
  
          
  
          $NUXEOCTL --quiet restart
  
          
  
          ;;
  
    force-reload)
  
          
  
          $NUXEOCTL --quiet restart
  
          ;;
  
    status)
  
          $NUXEOCTL --quiet status
  
          ;;
  
    showconf)
  
          $NUXEOCTL --xml showconf
  
          ;;
  
    *)
  
          echo "Usage: $0 {start|stop|restart|force-reload|status|showconf}" >&2
  
          exit 3
  
          ;;
  
  esac

  I am getting following error. when i try to upload video.

  2016 - 09 - 14 05: 49: 01, 943 ERROR[Nuxeo - Work - videoConversion - 2][org.nuxeo.ecm.core.work.AbstractWork] Exception during work: VideoConversionWork(9596ea87 - 43dd - 4ba8 - b691 - 6e519a7eccfb, /videoAutomaticConversions:138979904092822.1006934040, Progress(?%, ?/0), Transcoding)
  
  org.nuxeo.ecm.core.convert.api.ConverterNotAvailable: Converter convertToWebM is not available
  
  at org.nuxeo.ecm.core.convert.service.ConversionServiceImpl.convert(ConversionServiceImpl.java: 178)
  
  at org.nuxeo.ecm.platform.video.service.VideoServiceImpl.convert(VideoServiceImpl.java: 175)
  
  at org.nuxeo.ecm.platform.video.service.VideoConversionWork.work(VideoConversionWork.java: 100)
  
  at org.nuxeo.ecm.core.work.AbstractWork.runWorkWithTransaction(AbstractWork.java: 340)
  
  at org.nuxeo.ecm.core.work.AbstractWork.runWorkWithTransactionAndCheckExceptions(AbstractWork.java: 301)
  
  at org.nuxeo.ecm.core.work.AbstractWork.run(AbstractWork.java: 272)
  
  at org.nuxeo.ecm.core.work.WorkHolder.run(WorkHolder.java: 52)
  
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: 1142)
  
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java: 617)
  
  at java.lang.Thread.run(Thread.java: 745)

  I don’t know why. I am behind this issue but still i am not able find solution for this .

• Realtime transcoding of Audio stream

  16 avril 2019, par M. G. Andjedani

  An audio (e.g. mp3) file is streaming over gRPC and I need to write a microservice to transcode this stream to pcm/wav.

  This service has to support some other audio encoding as well.