FFMPEG ile video dönüştürme ve video içinden resim çekme

public void NETSorununuCozenConvert()
{
    /* The below will be the right solution ....
     * The while loop which reads the stream is very improtant 
     * for FFMPEG as .NET does not provide more memory to FFMPEG. 
     * When converting large files, FFMPEG's out put stream gets filled...
     * And waits for .NET to allocate memory resources but is never done. 
     * In order to utilize less memory, we are clearing the buffer periodically.
     **/
    string strSRC = "c:\\video1.avi";
    string strDEST = "c:\\video1.flv";

    Process ffmpeg = new Process();
    //string VideoFileDuration = Vuzz.BLL.Common.CommonMethodBLL.GetSystemParameters("Video File Duration");
    string VideoFileDuration = "00:10:00";
    string ffmpegargs = "-y -i \"" + strSRC + "\" -t " + VideoFileDuration + " -f flv -sameq \"" + strDEST + "\"";
    // creating process


    ffmpeg.StartInfo.UseShellExecute = false;
    ffmpeg.StartInfo.RedirectStandardError = true;
    ffmpeg.StartInfo.RedirectStandardOutput = false;
    //ffmpeg.StartInfo.LoadUserProfile = true;
    ffmpeg.StartInfo.CreateNoWindow = true;
    ffmpeg.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
    ffmpeg.StartInfo.Arguments = ffmpegargs;
    ffmpeg.StartInfo.WorkingDirectory = Path.GetDirectoryName(Page.MapPath("~/ffmpeg/ffmpeg.exe"));
    ffmpeg.StartInfo.FileName = Page.MapPath("~/ffmpeg/ffmpeg.exe"); 
    ffmpeg.Start();

    StreamReader objStreamReader = ffmpeg.StandardError;
    StringBuilder sbOutPut = new StringBuilder();

    while (!ffmpeg.WaitForExit(1000))
    {
        sbOutPut.Append(objStreamReader.ReadToEnd().ToString());
    }

    if (ffmpeg.ExitCode == 0)
    {
        ffmpeg.Close();
        if (objStreamReader != null)
        {
            objStreamReader.Close();
        }
        //PrepareFileForPseudoStreaming(strMetaDatinsert, objList);
    }
    else
    {
        ffmpeg.Close();
        if (objStreamReader != null) objStreamReader.Close();
        //UpdateConversionStatusinDB(ffmpeg, objList);
    }
}


public void VideoConvert(string Sourcevideo)
{
    /* CMD ekranında bu iş şöyledir:
     * C:\>ffmpeg -i test.avi test.flv
     **/

    Process ffmpeg = new Process();
    
    // Output name
    string formatedvideo = DateTime.Now.Ticks.ToString() + ".flv";
    // video = Page.MapPath("1.wmv"); // setting video input name with path
    string mpg= Page.MapPath("~/Videos/") + formatedvideo;

    // ffmpeg -i "c:\my_folder\test.avi" "c:\my folder\test.flv" 
    ffmpeg.StartInfo.Arguments = " -i \"" + Sourcevideo + "\" -target vcd \"" + mpg + "\""; // arguments !
    ffmpeg.StartInfo.FileName = Page.MapPath("~/ffmpeg/ffmpeg.exe");
    ffmpeg.StartInfo.CreateNoWindow = true;
    ffmpeg.StartInfo.UseShellExecute = false;
    ffmpeg.StartInfo.CreateNoWindow = true;
    ffmpeg.StartInfo.RedirectStandardOutput = false;
    ffmpeg.Start(); // start !


    /* Resim çekme
     * 
     * ffmpeg.StartInfo.Arguments = " -i \"" + input + "video.flv" + "\" -vframes 1 -f mjpeg \"" + output + "video.jpg\"";
     * 
     **/

    /*
     * P.S how i caught the bug in my code was by setting the 
     * ProcessStartInfo.RedirectStandardOutput = true;
     * and  
     * ProcessStartInfo.RedirectStandardError = true;
     * 
     * Then on my process object i got the standard output and error stream ->
     * StreamReader sr = Proc.StandardOutput;
     * StreamReader sre = Proc.StandardError; 
     * 
     * then i use 
     * Response.Write(sr.ReadToEnd()); 
     * and 
     * sre.ReadToEnd();
     **/

}

public int ConvertEtResimCek()
{
    try
    {
        Process pVideo = new Process();
        Process pResim = new Process();

        string AppPath = ConfigurationSettings.AppSettings.Get("AppFolder");
        string input = ConfigurationSettings.AppSettings.Get("inputFolder");
        string output = ConfigurationSettings.AppSettings.Get("inputFolder");

        // Video Convert et
        string fileargs = " -i " + "\"" + input + "video.avi\"  -ar 22050 -acodec mp3  \"" + output + "video.flv\"";
        // İçinden resim çek
        string fileargs2 = " -i \"" + input + "video.flv" + "\" -vframes 1 -f mjpeg \"" + output + "video.jpg\"";

        pVideo.StartInfo.WorkingDirectory = AppPath;
        pVideo.StartInfo.FileName = AppPath + "ffmpeg.exe";
        pVideo.StartInfo.Arguments = fileargs;
        pVideo.StartInfo.UseShellExecute = false;
        pVideo.StartInfo.CreateNoWindow = false;
        pVideo.StartInfo.RedirectStandardOutput = true;
        pVideo.StartInfo.RedirectStandardError = true;

        pResim.StartInfo.WorkingDirectory = AppPath;
        pResim.StartInfo.FileName = AppPath + "ffmpeg.exe";
        pResim.StartInfo.Arguments = fileargs2;
        pResim.StartInfo.UseShellExecute = false;
        pResim.StartInfo.CreateNoWindow = false;
        pResim.StartInfo.RedirectStandardOutput = true;
        pResim.StartInfo.RedirectStandardError = true;

        pVideo.Start();
        pVideo.WaitForExit();

        // Get & Log the error
        int errCode = pVideo.ExitCode;
        if (errCode == 0)
        {
            // Başarılı
            pResim.Start();
            pResim.WaitForExit();

            if (pResim.ExitCode == 0)
            {
                return 0;
            }
            else
            {
                return -1; // no thumb image will be add
            }
        }
        else
        {
            // LogaYaz("ERROR --> " + " An error occurred while converting the file");
            return 1;
        }
    }
    catch (Exception e)
    {
        // LogaYaz("ERROR --> " + e.Message);
        return 2;
    }
}

http://alexgorbatchev.com/wiki/SyntaxHighlighter:Demo:collapse
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