Upload any video and convert to .mp4 online in .net

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予麋鹿
予麋鹿 2020-12-31 10:06

I have a strange requirement. User can upload their video of any format (or a limited format). We have to store them and convert them to .mp4 format so we c

3条回答
  •  甜味超标
    2020-12-31 10:26

    Your Answer

    please Replace .flv to .mp4 you will get your answer

    private bool ReturnVideo(string fileName)
        {
            string html = string.Empty;
            //rename if file already exists
    
            int j = 0;
            string AppPath;
            string inputPath;
            string outputPath;
            string imgpath;
            AppPath = Request.PhysicalApplicationPath;
            //Get the application path
            inputPath = AppPath + "OriginalVideo";
            //Path of the original file
            outputPath = AppPath + "ConvertVideo";
            //Path of the converted file
            imgpath = AppPath + "Thumbs";
            //Path of the preview file
            string filepath = Server.MapPath("~/OriginalVideo/" + fileName);
            while (File.Exists(filepath))
            {
                j = j + 1;
                int dotPos = fileName.LastIndexOf(".");
                string namewithoutext = fileName.Substring(0, dotPos);
                string ext = fileName.Substring(dotPos + 1);
                fileName = namewithoutext + j + "." + ext;
                filepath = Server.MapPath("~/OriginalVideo/" + fileName);
            }
            try
            {
                this.fileuploadImageVideo.SaveAs(filepath);
            }
            catch
            {
                return false;
            }
            string outPutFile;
            outPutFile = "~/OriginalVideo/" + fileName;
            int i = this.fileuploadImageVideo.PostedFile.ContentLength;
            System.IO.FileInfo a = new System.IO.FileInfo(Server.MapPath(outPutFile));
            while (a.Exists == false)
            {
    
            }
            long b = a.Length;
            while (i != b)
            {
    
            }
    
    
            string cmd = " -i \"" + inputPath + "\\" + fileName + "\" \"" + outputPath + "\\" + fileName.Remove(fileName.IndexOf(".")) + ".flv" + "\"";
            ConvertNow(cmd);
            string imgargs = " -i \"" + outputPath + "\\" + fileName.Remove(fileName.IndexOf(".")) + ".flv" + "\" -f image2 -ss 1 -vframes 1 -s 280x200 -an \"" + imgpath + "\\" + fileName.Remove(fileName.IndexOf(".")) + ".jpg" + "\"";
            ConvertNow(imgargs);
    
    
            return true;
        }
        private void ConvertNow(string cmd)
        {
            string exepath;
            string AppPath = Request.PhysicalApplicationPath;
            //Get the application path
            exepath = AppPath + "ffmpeg.exe";
            System.Diagnostics.Process proc = new System.Diagnostics.Process();
            proc.StartInfo.FileName = exepath;
            //Path of exe that will be executed, only for "filebuffer" it will be "flvtool2.exe"
            proc.StartInfo.Arguments = cmd;
            //The command which will be executed
            proc.StartInfo.UseShellExecute = false;
            proc.StartInfo.CreateNoWindow = true;
            proc.StartInfo.RedirectStandardOutput = false;
            proc.Start();
    
            while (proc.HasExited == false)
            {
    
            }
        }
        protected void btn_Submit_Click(object sender, EventArgs e)
        {
            ReturnVideo(this.fileuploadImageVideo.FileName.ToString());
        }
    

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