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• Anomalie #2398 (Fermé) : sql_allfetsel, son argument options sur bases distantes non spip

  7 novembre 2011, par cam.lafit -

  Yop Selon la documentation de l’API écrire l’argument options ’’ , true ou rien du tout devrait demander le même comportement Sur un SPIP 3 (r18174) cela ne semble pas être le cas. Soit config/distant.php : Si je lance la requête : $rows = sql_allfetsel( (...)

• How to do make a loading screen for ffmpeg using c# asp.net

  1er septembre 2011, par anthonypliu

  I have this function and where the Debug.WriteLine commands are is where I output the values. How would I get this data to print into a webpage so I can mimic a loading screen ? I am calling this function externally through a *.ashx web service file.

  private string ConvertToFLV(string phyicalFilePath)
  
          {
  
              if (Path.GetExtension(phyicalFilePath).Equals(".flv")) return phyicalFilePath;
  
  
  
              var argument = string.Format(@"-i ""{0}"" -vcodec flv -f flv -r 29.97 -s 320x240 -aspect 4:3 -b 300k -g 160 -cmp dct  -subcmp dct  -mbd 2 -flags +aic+cbp+mv0+mv4 -trellis 1 -ac 1 -ar 22050 -ab 56k ""{1}""", phyicalFilePath, Path.ChangeExtension(phyicalFilePath, "flv"));
  
              libfaac -ar 48000 -ab 128k -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -threads 0 {1}", phyicalFilePath, Path.ChangeExtension(phyicalFilePath, "mp4"));
  
              File.Delete(Path.ChangeExtension(phyicalFilePath, "flv"));
  
  
  
              ProcessStartInfo process = new ProcessStartInfo(ffmpegPhysicalPath, argument);
  
              Process proc = new Process();
  
              float duration = 0.00F, current = 0.00F;
  
              proc.StartInfo = process;
  
              proc.EnableRaisingEvents = false;
  
              proc.StartInfo.UseShellExecute = false;
  
              proc.StartInfo.CreateNoWindow = true;
  
              proc.StartInfo.RedirectStandardOutput = true;
  
              proc.StartInfo.RedirectStandardError = true;
  
  
  
              proc.Start();
  
  
  
              StreamReader d = proc.StandardError;
  
  
  
              do
  
              {
  
                  string s = d.ReadLine();
  
                  if (s.Contains("Duration: "))
  
                  {
  
                      Debug.WriteLine("DURATION: " + s);
  
  
  
                  }
  
                  else
  
                  {
  
                      if (s.Contains("frame="))
  
                      {
  
                          Debug.WriteLine("FRAME: " + s);
  
  
  
                      }
  
                  }
  
              } while (!d.EndOfStream);
  
  
  
  
  
              proc.WaitForExit();
  
  
  
              return Path.ChangeExtension(phyicalFilePath, "flv");

• Interact with ffmpeg from a .NET program ?

  18 septembre 2011, par Shimmy

  I'm trying to create a .NET wrapper for media-file conversion using ffmepg, here is what I've tried :

  static void Main(string[] args)
  
  {
  
    if (File.Exists("sample.mp3")) File.Delete("sample.mp3");
  
  
  
    string result;
  
  
  
    using (Process p = new Process())
  
    {
  
      p.StartInfo.FileName = "ffmpeg";
  
      p.StartInfo.Arguments = "-i sample.wma sample.mp3";
  
  
  
      p.StartInfo.UseShellExecute = false;
  
      p.StartInfo.RedirectStandardOutput = true;
  
  
  
      p.Start();
  
  
  
      //result is assigned with an empty string!
  
      result = p.StandardOutput.ReadToEnd();
  
  
  
      p.WaitForExit();
  
    }
  
  }

  What actually happens is the content of the ffmpeg program is printed out to the Console app, but the result variable is an empty string. I want to control the conversion progress interactively, so the user doesn't even have to know I'm using ffmpeg, but he still knows the conversion progress' details and what percentage etc. the app is up to.

  Basically I would also be happy with a .NET wrapper for a P/Invoke to conversion function ONLY (I am not interested in a whole external library, unless I can extract the PI function from it).

  Anyone with experience in ffmpeg & .NET ?

  Update
  Please view my further question, how to write input to a running ffmpeg process.