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• Get Proper Progress Updates on Two Long Waited Concurrent Processes in ASP.NET

  17 juillet 2012, par irfanmcsd

  I implemented background video processing using .net ffmpeg wrapper http://www.mediasoftpro.com with progress bar indication to calculate how much video is processed and send information to web page to update progress bar indicator. Its working fine if only single process works at a time, but in case of two concurrent processes (start two video publishing at once let say from two different computers), progress bar suddenly mixed progress status.
  Here is my code where i used static objects to properly send information of single instance to progress bar.

  static string FileName = "grey_03";
  
  protected void Page_Load(object sender, EventArgs e)
  
  {
  
      if (!Page.IsPostBack)
  
      {
  
          if (Request.Params["file"] != null)
  
          {
  
              FileName = Request.Params["file"].ToString();
  
          }
  
      }
  
  }
  
  public static double ProgressValue = 0;
  
  public static MediaHandler _mhandler = new MediaHandler();
  
  
  
  [WebMethod]
  
  public static string EncodeVideo()
  
  {
  
      // MediaHandler _mhandler = new MediaHandler();
  
      string RootPath = HttpContext.Current.Server.MapPath(HttpContext.Current.Request.ApplicationPath);
  
      _mhandler.FFMPEGPath = HttpContext.Current.Server.MapPath("~\\ffmpeg_july_2012\\bin\\ffmpeg.exe");
  
      _mhandler.InputPath = RootPath + "\\contents\\original";
  
      _mhandler.OutputPath = RootPath + "\\contents\\mp4";
  
      _mhandler.BackgroundProcessing = true;
  
      _mhandler.FileName = "Grey.avi";
  
      _mhandler.OutputFileName =FileName;
  
      string presetpath = RootPath + "\\ffmpeg_july_2012\\presets\\libx264-ipod640.ffpreset";
  
      _mhandler.Parameters = " -b:a 192k -b:v 500k -fpre \"" + presetpath + "\"";
  
      _mhandler.OutputExtension = ".mp4";
  
      _mhandler.VCodec = "libx264";
  
      _mhandler.ACodec = "libvo_aacenc";
  
      _mhandler.Channel = 2;
  
      _mhandler.ProcessMedia();
  
      return _mhandler.vinfo.ErrorCode.ToString();
  
  }
  
  
  
  [WebMethod]
  
  public static string GetProgressStatus()
  
  {
  
      return Math.Round(_mhandler.vinfo.ProcessingCompleted, 2).ToString();
  
      // if vinfo.processingcomplete==100, then you can get complete information from vinfo object and store it in database and perform other processing.
  
  }

  Here is jquery functions responsible for updating progress bar indication after every second etc.

  $(function () {
  
           $("#vprocess").on({
  
               click: function (e) {
  
                   ProcessEncoding();
  
                   var IntervalID = setInterval(function () {
  
                       GetProgressValue(IntervalID);
  
                   }, 1000);
  
                   return false;
  
               }
  
           }, '#btn_process');
  
  
  
       });
  
       function GetProgressValue(intervalid) {
  
           $.ajax({
  
               type: "POST",
  
               url: "concurrent_03.aspx/GetProgressStatus",
  
               data: "{}",
  
               contentType: "application/json; charset=utf-8",
  
               dataType: "json",
  
               success: function (msg) {
  
                   // Do something interesting here.
  
                   $("#pstats").text(msg.d);
  
                   $("#pbar_int_01").attr('style', 'width: ' + msg.d + '%;');
  
                   if (msg.d == "100") {
  
                       $('#pbar01').removeClass("progress-danger");
  
                       $('#pbar01').addClass("progress-success");
  
                       if (intervalid != 0) {
  
                           clearInterval(intervalid);
  
                       }
  
                       FetchInfo();
  
                   }
  
               }
  
           });
  
       }

  The problem arises due to static mediahandler object

  public static MediaHandler _mhandler = new MediaHandler();

  I need a way to keep two concurrent processes information separate from each other in order to update progress bar with value exactly belong to that process.

• Add error message for unknown errors

  21 juillet 2014, par tkleinhakisa

  Add error message for unknown errors
  Currently the `fail` option sets `file.error = true` when an unknown error occurs (eg : restart the web server during upload) so it is not possible to change or translate the error message, and in any case true was not a very good error message :)
  

• Php and mysql Video upload Using ffmpeg

  13 juillet 2014, par EcoWebtr

  Hello friends i am trying to make a video upload script but I just want to ask a question.How will the integration of ffmpeg ?I asked my server provider. They said FFmpeg is in working condition.
  I want to give a just an example in my code.

  <?php
  
  
  
  
  
  if(isset($_POST['submit']))
  
  { 
  
  $tmp = $_FILES['file']['tmp_name'];
  
  $name = $_FILES['file']['name'];
  
  $ext = pathinfo($name, PATHINFO_EXTENSION); 
  
  $name = alphaID(microtime(true) * 10000);
  
  
  
  move_uploaded_file($temp,"uploaded/".$name.'.'.$ext);
  
  
  
      mysql_query("INSERT INTO `video` VALUE ('','$name','$ext')");
  
  }
  
  
  
  ?>

  My video was uploaded successfully. Where and how can i add Ffmpeg code ?