Converting video with FFMPEG with ASP.Net

ConvertVideo.cs

public static string ConvertVideo(string file, string convertedExtension)
{
	string result = string.Empty;
	string input = string.Empty;
	string output = string.Empty;
	try
	{
		string ffmpegFilePath = "~/video/ffmpeg/ffmpeg.exe"; // path of ffmpeg.exe - please replace it for your options.
		FileInfo fi = new FileInfo(HttpContext.Current.Server.MapPath(file));
		string filename = Path.GetFileNameWithoutExtension(fi.Name);
		string extension = Path.GetExtension(fi.Name);
		input = HttpContext.Current.Server.MapPath(file);
		output = HttpContext.Current.Server.MapPath("/video/" + filename + convertedExtension);

		var processInfo = new ProcessStartInfo(HttpContext.Current.Server.MapPath(ffmpegFilePath), " -i \"" + input + "\" -ar 22050 \"" + output + "\"")
		{
			UseShellExecute = false,
			CreateNoWindow = true,
			RedirectStandardOutput = true,
			RedirectStandardError = true
		};

		try
		{
			Process process = System.Diagnostics.Process.Start(processInfo);
			result = process.StandardError.ReadToEnd();
			process.WaitForExit();
			process.Close();
		}
		catch (Exception)
		{
			result = string.Empty;
		}
	}
	catch (Exception ex)
	{
		string error = ex.Message;
	}

	return result;
}

man whats "ApplicationPath" i am getting error on this???

@zohaibrehman
I'm so sorry I saw your comment just now. I removed applicationpath from code and put comment there.

iam using file upload service can i use thius to compress or resize video

iam using file upload service can i use thius to compress or resize video

Yea sure. No problem.

public IEnumerable UploadImgFile()
{
List success = new List();
try
{

        success.Add("false");
           if (HttpContext.Current.Request.Files.AllKeys.Any())
           {
             // Get the uploaded image from the Files collection
           var httpPostedFile = HttpContext.Current.Request.Files["UploadedImage"];

                if (httpPostedFile != null)
            {
                   // Validate the uploaded image(optional)

                 // Get the complete file path
                string Exten = Path.GetExtension(httpPostedFile.FileName);
                  string name = "SVFILE_" + DateTime.Now.ToString("ddMMyyyyHHmmss");
                  string finalfilename = name + Exten;

                    var fileSavePath = Path.Combine(HttpContext.Current.Server.MapPath("~/tempfold/facilityimage"), finalfilename);

                   // Save the uploaded file to "UploadedFiles" folder
                    httpPostedFile.SaveAs(fileSavePath);
                    success.Clear();
                    success.Add(finalfilename);
                }
               else
                {
                    success.Clear();
                    success.Add("Could not get the uploaded file.");
                }
            }
            else
            {
              success.Clear();
                success.Add("No file found to upload.");
            }

above code in that how can i use video conversion iam not able to get compress file while refering your code please guide me