コード例 #1
0
 /// <summary>
 /// 视频信息浏览
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void buttonVideoInfoScan_Click(object sender, EventArgs e)
 {
     try
     {
         Microsoft.DirectX.AudioVideoPlayback.Video video = new Video(videoFileName);
         double frameRate = 1 / video.AverageTimePerFrame;
         //////////////////////////////////////////////////////////////////////////在控件中进行视频浏览
         WinStructs.VIDEOBASICINFO videoBasicInfo;
         videoBasicInfo = FrameGrabber.GetVideoBasicInfo(videoFileName);
         if (videoBasicInfo.totalFrames == 0)
         {
             throw new ArgumentException("Total Frames is 0!");
         }
         int intervalFrameNum = Convert.ToInt32(textBox_IntervalNum.Text.Trim());
         for (int i = 1; i <= videoBasicInfo.totalFrames; i += intervalFrameNum)
         {
             this.pictureBox1.Refresh();
             this.pictureBox1.Image = FrameGrabber.GetFrameFromVideo(videoBasicInfo.fileName, i, Size.Empty, string.Empty);
             this.pictureBox1.Image.Save("D:\\frames\\" + i.ToString() + ".bmp");
         }
     }
     catch (VideoAnalysisProcessSystem.ClassFile.InvalidVideoFileException ex)
     {
         MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     catch (StackOverflowException)
     {
         MessageBox.Show("The target image size is too big", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }