/// <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);
}
}
private void showVideoFrame(double part)
{
try
{
System.Drawing.Bitmap frame = FrameGrabber.GetFrameFromVideo(PathLoad, part);
if (_intrinsicCamera != null && _distCoefs != null)
{
Image <Rgb, Byte> FrameBuffer = new Image <Rgb, byte>(frame);
Image <Rgb, Byte> FrameResultBuffer = new Image <Rgb, byte>(frame.Size);
CvInvoke.Undistort(FrameBuffer, FrameResultBuffer, _intrinsicCamera, _distCoefs);
frame = FrameResultBuffer.ToBitmap();
}
_imgPath = _tmpFolder + _imgName + _imgCounter++ + ".png";
frame.Save(@_imgPath, System.Drawing.Imaging.ImageFormat.Png);
ImageBrush brush = new ImageBrush();
brush.ImageSource = new System.Windows.Media.Imaging.BitmapImage(new System.Uri(@_imgPath, System.UriKind.Absolute));
CanvasIMG = brush;
}
catch (InvalidVideoFileException)
{
InfoText = "An error occured. Video file has the wrong format.";
}
catch (System.ArgumentOutOfRangeException)
{
InfoText = "An error occured. Video part doesn't exist.";
}
}
/// <summary>
/// 单帧播放。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button_FrameStep_Click(object sender, EventArgs e)
{
try
{
for (int i = 0; i < TotalFrameNum; i++)
{
pictureBox_GrabFrame.Refresh();
Application.DoEvents();
pictureBox_GrabFrame.Image = FrameGrabber.GetFrameFromVideo(openFileDialog1.FileName, i, Size.Empty, VideoFormat);
Thread.Sleep(500);
}
}
catch (Exception ex)
{
}
}
/// <summary>
/// 显示下一帧。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button_NextFrame_Click(object sender, EventArgs e)
{
try
{
if (FrameNum + 1 <= TotalFrameNum)
{
pictureBox_GrabFrame.Image = FrameGrabber.GetFrameFromVideo(openFileDialog1.FileName, FrameNum + 1, Size.Empty, VideoFormat);
nextFrame = FrameGrabber.GetFrameFromVideo(openFileDialog1.FileName, FrameNum + 1, Size.Empty, VideoFormat);
}
else
{
MessageBox.Show("当前帧没有前一帧", "提示");
}
}
catch (Exception ex)
{
}
}
/// <summary>
/// 抓图。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button_CaptureImage_Click(object sender, EventArgs e)
{
try
{
if (openFileDialog1.FileName != "")
{
if (MyVideo.CurrentPosition >= 0 && MyVideo.CurrentPosition <= MyVideo.Duration)
{
double currentTime = MyVideo.CurrentPosition;
//分析视频的格式
if (VideoFormat == "asf") //如果是asf格式的视频，则默认帧率为30
{
FrameNum = (int)(currentTime * 30);
}
else
{
FrameNum = (int)(MyVideo.CurrentPosition / MyVideo.AverageTimePerFrame);
}
//设置文件名
string ImageName = "";
if (folderBrowserDialog_ImagePath.SelectedPath != "")
{
ImageName = folderBrowserDialog_ImagePath.SelectedPath + DateTime.Now.ToString("yyyy年MM月dd日HH时mm分ss秒") + FrameNum.ToString() + ".bmp";
}
else
{
ImageName = textBox_ImagePath.Text + DateTime.Now.ToString("yyyy年MM月dd日HH时mm分ss秒") + FrameNum.ToString() + ".bmp";
}
Image tempImage = FrameGrabber.GetFrameFromVideo(openFileDialog1.FileName, FrameNum, Size.Empty, VideoFormat);
tempImage.Save(ImageName);
pictureBox_GrabFrame.Image = tempImage;
currentFrame = tempImage;
}
}
}
catch (Exception ex)
{
}
}
/// <summary>
/// اضافه کردن کلیپ
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void toolStripMenuItem5_Click(object sender, EventArgs e)
{
DialogResult dr = ofdFilms.ShowDialog();
if (dr == DialogResult.Cancel)
{
return;
}
int i = FilmBrowser.NextNumber();
bool isinsert = false;
//بر خلاف عکس کلیپ ها را یکی یکی اضافه می کنیم
FileInfo fi = new FileInfo(ofdFilms.FileName);
string fn = i.ToString("0000000000") + fi.Extension;
try
{
string fa = @"Files\" + folderBrowser.GetCurrentFolderName() + @"\FILM\" + fn;
File.Copy(ofdFilms.FileName, fa);
isinsert = true;
//برای گرفتن عکس از کلیپ از پروژه دانلود شده استفاده می کنیم
try
{
Image img = FrameGrabber.GetFrameFromVideo(fa, 0.2d);
img = (Image)(new Bitmap(img, new Size(100, 100)));
img.Save(@"Files\" + folderBrowser.GetCurrentFolderName() + @"\FILM\\thum\" + fn + ".jpg");
}
catch
{
Image img = new Bitmap(1, 1);
Graphics drawing = Graphics.FromImage(img);
img.Dispose();
drawing.Dispose();
img = new Bitmap(100, 100);
drawing = Graphics.FromImage(img);
drawing.Clear(Color.Silver);
Brush textBrush = new SolidBrush(Color.Black);
drawing.DrawString(fi.Name, this.Font, textBrush, 10, 40);
drawing.Save();
textBrush.Dispose();
drawing.Dispose();
img.Save(@"Files\" + folderBrowser.GetCurrentFolderName() + @"\FILM\\thum\" + fn + ".jpg");
}
}
catch (Exception ex)
{
//اگر فایل اضافه شده و فقط در گرفتن عکس مشکلی وجود دارد یک عکس خالی برای آن اضافه کن
if (isinsert)
{
Image img = (Image)(new Bitmap(100, 100));
img.Save(@"Files\" + folderBrowser.GetCurrentFolderName() + @"\FILM\\thum\" + fn + ".jpg");
}
//continue;
}
//یک لحظه هیج پوشه ای را انتخاب نمی کنیم و دوباره پوشه قبلی را انتخاب می کنیم تا فایل های اضافه شده نمایش داده شود
int t = folderBrowser.CurrentIndex;
folderBrowser.CurrentIndex = -3;
folderBrowser.CurrentIndex = t;
}
public void SaveFrames()
{
if (!_videoLoaded)
{
InfoText = "Error: You have to load a video first";
return;
}
if (!System.IO.Directory.Exists(PathSave))
{
InfoText = "Error: You have to select a folder to save the images";
return;
}
if (_canvasHeight == 0 || _canvasWidth == 0)
{
InfoText = "Error: Set the region to cut out in the video";
return;
}
int videoLength = (int)(_mediaDet.StreamLength * 1000);
double offset;
if (!double.TryParse(_frameOffset, out offset) || (offset <= 0.0 || offset > videoLength))
{
InfoText = "Frame offset must be set in milliseconds between 0 and " + videoLength + ".";
return;
}
if (SizeNxN < 0 || SizeNxN >= _canvasHeight)
{
InfoText = "Error: Max bounds for the size are from 0 to " + _canvasHeight;
return;
}
double percentage = 0.0;
int posX, posY, width, height;
Progress = (int)(percentage * 100);
for (double iFrame = 0.0; iFrame <= videoLength; iFrame += offset)
{
percentage = iFrame / videoLength;
if (percentage > 1.0)
{
percentage = 1.0;
}
System.Drawing.Bitmap frame = FrameGrabber.GetFrameFromVideo(PathLoad, percentage);
posX = (int)(frame.Width * (RectLeft / _canvasWidth));
posY = (int)(frame.Height * (RectTop / _canvasHeight));
width = (int)(frame.Width * (RectWidth / _canvasWidth));
height = (int)(frame.Height * (RectHeight / _canvasHeight));
frame = frame.Clone(new System.Drawing.Rectangle(new System.Drawing.Point(posX, posY), new System.Drawing.Size(width, height)), frame.PixelFormat);
if (SizeNxN != 0)
{
frame = new System.Drawing.Bitmap(frame, new System.Drawing.Size(SizeNxN, SizeNxN));
}
if (_intrinsicCamera != null && _distCoefs != null)
{
Image <Rgb, Byte> FrameBuffer = new Image <Rgb, byte>(frame);
Image <Rgb, Byte> FrameResultBuffer = new Image <Rgb, byte>(frame.Size);
CvInvoke.Undistort(FrameBuffer, FrameResultBuffer, _intrinsicCamera, _distCoefs);
frame = FrameResultBuffer.ToBitmap();
}
frame.Save(@PathSave + "\\" + "frameExtractor" + iFrame + ".png", System.Drawing.Imaging.ImageFormat.Png);
Progress = (int)(percentage * 100);
}
Progress = 100;
}
