하늘높이의 프로그래밍 이야기

   1: /// <summary>
   2:    /// FFMPEG을 이용해서 프레임을 추출함
   3:    /// FFMPEGManager Class 1.0
   4:    /// Program by kunmin00
   5:    /// </summary>
   6:    public class FFMpegManager
   7:    {
   8:        const int IMG_COUNT = 60;
   9:  
  10:        /// <summary>
  11:        /// FFMPEG 을 이용해서 프레임 추출하기 kunmin00
  12:        /// </summary>
  13:        /// <param name="mediaFileInfo"></param>
  14:        /// <returns></returns>
  15:        public static Boolean GrapImageFromMediafile(MediaFile mediaFileInfo)
  16:        {
  17:  
  18:            TimeSpan duration = mediaFileInfo.DurationTime;
  19:  
  20:            LogHelper.LogMessage("[FFMPEG 이미지 추출 시작] " + mediaFileInfo.FilePath);
  21:  
  22:            Process myProcess = new Process();
  23:            FileInfo mediafileinfo = new FileInfo(mediaFileInfo.FilePath);
  24:            string mediafilename = mediafileinfo.Name.Replace(mediafileinfo.Extension, "");
  25:  
  26:            string LogPath = Application.StartupPath +"\\Temp";
  27:  
  28:            GlobalFunction.Current_Mainform.ChangeProgressBar(0, IMG_COUNT);
  29:            //디렉토리 체크
  30:            if (!Directory.Exists(LogPath))
  31:            {
  32:                LogHelper.LogMessage("[템프 폴더 생성]");
  33:                Directory.CreateDirectory(LogPath);
  34:            }
  35:  
  36:            try
  37:            {
  38:                for (int i = 0; i < IMG_COUNT; i++)
  39:                {
  40:                    myProcess.StartInfo.UseShellExecute = false;
  41:                    // You can start any process, HelloWorld is a do-nothing example.
  42:                    myProcess.StartInfo.FileName = "FFMPEG\\ffmpeg.exe";
  43:                    TimeSpan time = TimeSpan.FromSeconds((duration.TotalSeconds / IMG_COUNT) * i + 1);
  44:                    myProcess.StartInfo.Arguments = "-ss " + GetTimeStringFromTimeSpan(time) + " -vframes 1 -i \"" + mediaFileInfo.FilePath + "\" -y -f image2 " + ".\\Temp\\" + mediafilename + "_" + time.TotalSeconds.ToString() + ".png" + " -threads 4 -an";
  45:                    myProcess.StartInfo.CreateNoWindow = true;
  46:                    myProcess.StartInfo.RedirectStandardOutput = false;
  47:                    myProcess.Start();
  48:  
  49:                    GlobalFunction.Current_Mainform.ChangeProgressBar((i+1) * 100 / IMG_COUNT, IMG_COUNT);
  50:                    LogHelper.LogMessage("[" + (i+1) + "번째 이미지 추출] " + mediafilename + "_" + time.TotalSeconds.ToString() + ".png");
  51:  
  52:                    myProcess.WaitForExit();
  53:  
  54:                    Thread.Sleep(1);
  55:             
  56:                }
  57:  
  58:                LogHelper.LogMessage("[FFMPEG 이미지 추출 종료] " + mediaFileInfo.FilePath);
  59:  
  60:                myProcess.Close();
  61:                myProcess = null;
  62:            }
  63:            catch (Exception ex)
  64:            {
  65:                ExceptionHelper.ShowException(ex);
  66:                return false;
  67:            }
  68:  
  69:            return true;
  70:        }
  71:  
  72:        public static String GetTimeStringFromTimeSpan(TimeSpan duration)
  73:        {
  74:            return duration.Hours.ToString("00") + ":" + duration.Minutes.ToString("00") + ":" + duration.Seconds.ToString("00");
  75:        }
  76:  
  77:    }

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