GIF抽帧

private void GetFrames(string pPath,  string pSavedPath)
     {
         DrawImage.Image gif = DrawImage.Image.FromFile(pPath);
         Imaging.FrameDimension fd = new Imaging.FrameDimension(gif.FrameDimensionsList[0]);
         int count = gif.GetFrameCount(fd);
         for (int i = 0; i < count; i++)
         {
             gif.SelectActiveFrame(fd, i);
             gif.Save(pSavedPath + "\frame_" + i + ".jpg", ImageFormat.Jpeg);
         }
     }