Recherche avancée

Sur d’autres sites (11512)

• ftp: abort function optimalization

  3 juin 2013, par Lukasz Marek

  ftp: abort function optimalization
  It seems some ftp servers doesn’t respect ABOR command,
  
  but closing both connection is slow.
  This commit keeps control connection open when possible.
  Signed-off-by : Lukasz Marek <lukasz.m.luki@gmail.com>
  

  • [DH] libavformat/ftp.c

• how to write h264 frame to rtmp server using ffmpeg ?

  31 mai 2013, par sam18

  I am looking for sample code to write packet to network stream. I want to use ffmpeg. i found samples for command line but i want to control all by my way. any sample or suggestion will be helpful. thanks.

• opening jpg image after saving from ffmpeg not working

  30 mai 2013, par user2042152

  In my project I am saving videos, converting formats to .swf using ffmpeg. Converting and saving the videos is working fine, but I have a problem with creating the thumbnails. It saves a "picture.jpg" but there is no image. looking at the thumbnail its only got the normal photoviewer sign which is fine, but when I try to open the image it gives a message of
  Windows photo viewer : Windows photo viewer cant open this picture because the file appears to be damaged, corrupted, or is too large. (this image is 2.7MB) - Photos taken from my camera is about 5MB and that opens.

  PictureViewer : couldn't display "image.jpg" because a suitable graphics importer could not be found.

  Paint : Paint cannot read this file. This is not a valid bitmap file or its format is currently not supported.
  The images won't open in any I done to save the image :

      protected void btnUploadVideo_Click(object sender, EventArgs e)
  
      {
  
          string dtMonth = DateTime.Now.ToString("MMM");
  
          string dtYear = DateTime.Now.ToString("yyyy");
  
          lblMsg.Visible = false;
  
  
  
          lblMsg.Visible = true;
  
  
  
          // Before attempting to save the file, verify
  
          // that the FileUpload control contains a file.
  
          if (fuPath.HasFile)
  
          {
  
              // Get the size in bytes of the file to upload.
  
              int fileSize = fuPath.PostedFile.ContentLength;
  
  
  
              // Allow only files less than 2,100,000 bytes (approximately 2 MB) to be uploaded.
  
              if (fileSize < 10497717)
  
              {
  
                  // Call a helper method routine to save the file.
  
                  SaveFile2();
  
              }
  
          }
  
          else
  
              // Notify the user that a file was not uploaded.
  
              lblMsg.Text = "You did not specify a file to upload.";
  
      }
  
  
  
      private void SaveFile2()
  
      {
  
          string dtMonth = DateTime.Now.ToString("MMM");
  
          string dtYear = DateTime.Now.ToString("yyyy");
  
  
  
          if (fuPath != null || fuPath.PostedFile != null)
  
          {
  
              postedfilename = fuPath.PostedFile.FileName;
  
              SavePath = Server.MapPath("~\\Video\\");
  
              string NewFName = postedfilename;
  
              NewFName = NewFName.Substring(NewFName.LastIndexOf("\\") + 1, NewFName.Length - NewFName.LastIndexOf(".")) + "." + NewFName.Substring(NewFName.LastIndexOf(".") + 1);
  
              Filenamewithpath = SavePath + NewFName;
  
              string outputPath = Server.MapPath("~\\uploads\\" + dtYear + "\\" + dtMonth + "\\SWF\\");
  
              CreateDirectoryIfNotExists(SavePath);
  
              CreateDirectoryIfNotExists(outputPath);
  
  
  
              //Save The file
  
              fuPath.PostedFile.SaveAs(Filenamewithpath);
  
  
  
              //Start Converting
  
              string inputfile, outputfile, filargs;
  
              string withoutext;
  
  
  
              //Get the file name without Extension
  
              withoutext = Path.GetFileNameWithoutExtension(Filenamewithpath);
  
  
  
              //Input file path of uploaded image
  
              inputfile = SavePath + NewFName;
  
  
  
              //output file format in swf
  
  
  
              outputfile = outputPath + withoutext + ".swf";
  
              Session["outputfile"] = withoutext + ".swf";
  
              //file orguments for FFMEPG
  
  
  
              // Create the path and file name to check for duplicates.
  
              string pathToCheck = outputfile;
  
  
  
              // Create a temporary file name to use for checking duplicates.
  
              string tempfileName = "";
  
  
  
              // Check to see if a file already exists with the
  
              // same name as the file to upload.        
  
              if (System.IO.File.Exists(pathToCheck))
  
              {
  
                  int counter = 2;
  
                  while (System.IO.File.Exists(pathToCheck))
  
                  {
  
                      // if a file with this name already exists,
  
                      // prefix the filename with a number.
  
                      tempfileName = outputPath + counter.ToString() + withoutext + ".swf";
  
                      pathToCheck = tempfileName;
  
                      counter++;
  
                  }
  
  
  
                  outputfile = tempfileName;
  
                  // Notify the user that the file name was changed.
  
                  lblMsg.Text = "A file with the same name already exists." +
  
                      "<br />Your file was saved as " + counter.ToString() + withoutext + ".swf";
  
              }
  
  
  
              filargs = "-i " + inputfile + " -ar 22050 " + outputfile;
  
  
  
              string spath;
  
              spath = Server.MapPath(".");
  
              Process proc;
  
              proc = new Process();
  
              proc.StartInfo.FileName = spath + "\\ffmpeg\\ffmpeg.exe";
  
              proc.StartInfo.Arguments = filargs;
  
              proc.StartInfo.UseShellExecute = false;
  
              proc.StartInfo.CreateNoWindow = false;
  
              proc.StartInfo.RedirectStandardOutput = false;
  
              try
  
              {
  
  
  
                  proc.Start();
  
                  fuPath.PostedFile.SaveAs(outputfile);
  
              }
  
              catch (Exception ex)
  
              {
  
                  Response.Write(ex.Message);
  
              }
  
              proc.WaitForExit();
  
              proc.Close();
  
  
  
              //Create Thumbs 
  
  
  
              string thumbPath, thumbName;
  
              string thumbargs;
  
  
  
              thumbPath = Server.MapPath("~\\uploads\\" + dtYear + "\\" + dtMonth + "\\Thumb\\");
  
              CreateDirectoryIfNotExists(thumbPath);
  
  
  
              thumbName = thumbPath + withoutext + ".jpg";
  
  
  
              // Create the path and file name to check for duplicates.
  
              string thumbPathToCheck = thumbName;
  
  
  
              // Create a temporary file name to use for checking duplicates.
  
              string thumbTempfileName = "";
  
  
  
              // Check to see if a file already exists with the
  
              // same name as the file to upload.        
  
              if (System.IO.File.Exists(thumbPathToCheck))
  
              {
  
                  int counter = 2;
  
                  while (System.IO.File.Exists(thumbPathToCheck))
  
                  {
  
                      // if a file with this name already exists,
  
                      // prefix the filename with a number.
  
                      thumbTempfileName = thumbPath + counter.ToString() + withoutext + ".jpg";
  
                      thumbPathToCheck = thumbTempfileName;
  
                      counter++;
  
                  }
  
  
  
                  thumbName = thumbTempfileName;
  
                  // Notify the user that the file name was changed.
  
                  lblMsg.Text = "A file with the same name already exists." +
  
                      "<br />Your file was saved as " + counter.ToString() + withoutext + ".jpg";
  
              }
  
  
  
              //thumbargs = "-i " + inputfile + " -an -ss 00:00:03 -s 120×90 -vframes 1 -f mjpeg " + thumbName;
  
             // thumbargs = "-i " + inputfile + "-f image2 -ss 1.000 -vframes 1 " + thumbName;
  
              thumbargs = "-i " + inputfile + " -vframes 1 -ss 00:00:10 -s 150x150 " + thumbName;
  
  
  
              //  thumbargs = "ffmpeg -i" + inputfile + " -ss 0:00:01.000 -sameq -vframes 1 " + withoutext + ".jpg";
  
              //  thumbargs = "-i " + inputfile + " -vframes 1 -ss 00:00:07 -s 150x150 " + thumbName;
  
              Process thumbproc = new Process();
  
              thumbproc.StartInfo.FileName = spath + "\\ffmpeg\\ffmpeg.exe";
  
              thumbproc.StartInfo.Arguments = thumbargs;
  
              thumbproc.StartInfo.UseShellExecute = false;
  
              thumbproc.StartInfo.CreateNoWindow = true;
  
              thumbproc.StartInfo.RedirectStandardOutput = false;
  
  
  
              string data = "";                
  
  
  
              try
  
              {
  
                  fuPath.PostedFile.SaveAs(thumbName);
  
                  thumbproc.Start();
  
              }
  
              catch (Exception ex)
  
              {
  
                  Response.Write(ex.Message);
  
              }
  
  
  
              thumbproc.WaitForExit();
  
              thumbproc.Close();
  
              File.Delete(inputfile);
  
              lblMsg.Text = "Video Uploaded Successfully";
  
              hyp.Visible = true;
  
              hyp.NavigateUrl = "WatchVideo.aspx";
  
  
  
              SaveToDB(outputfile, thumbName);
  
          }
  
      }

  EDIT :
  If it is the thumbargs, I have tried a few ways, but with no success :

       //thumbargs = "-i " + inputfile + " -an -ss 00:00:03 -s 120×90 -vframes 1 -f mjpeg " + thumbName;
  
       // thumbargs = "-i " + inputfile + "-f image2 -ss 1.000 -vframes 1 " + thumbName;
  
        thumbargs = "-i " + inputfile + " -vframes 1 -ss 00:00:10 -s 150x150 " + thumbName;
  
       //  thumbargs = "ffmpeg -i" + inputfile + " -ss 0:00:01.000 -sameq -vframes 1 " + withoutext + ".jpg";

  This is how it looks when saved, but can't open....
  

  EDIT :

  I tried adding the argument to the command prompt to see if it works there but it gave me a message of : [NULL @ 000000000025f7a0] Unable to find a suitable output format for 'vframes'
  vframes : invalid argument
  The line I used :

      ffmpeg -i VID2012.3GP vframes 1 VID2012.jpg

  If it is that it is not set correctly in IIS how do I set it ?

  EDIT :
  I changed a bit of my code. Debugging through my code there is no exception that is thrown, but if I point the mouse over the process (after it started) it "shows an exception of type System.InvalidOperationException"

      thumbargs = "-i " + postedfilename + " vframes 1" + thumbName;
  
              ProcessStartInfo thumbProcstartIfo = new ProcessStartInfo();
  
              thumbProcstartIfo.FileName = @"\ffmpeg\ffmpeg.exe";
  
              thumbProcstartIfo.Arguments = thumbargs;
  
              thumbProcstartIfo.UseShellExecute = false;
  
              thumbProcstartIfo.CreateNoWindow = true;
  
              thumbProcstartIfo.RedirectStandardOutput = false;
  
  
  
              try
  
              {
  
                  using (var process = new Process())
  
                  {
  
                      process.StartInfo = thumbProcstartIfo;
  
                      process.Start();
  
                      process.WaitForExit();
  
                  }
  
              }
  
              catch (InvalidOperationException ex)
  
              {
  
                  lblMsg.Text = ex.ToString();
  
              }