/// <summary>
/// 基于OpenCv捕获视频流
/// </summary>
/// <param name="url"></param>
/// <param name="action"></param>
public void OpenCvCaptureVideoStream(string url, Action <OpenCvSharp.Mat> action)
{
using (OpenCvSharp.VideoCapture capture = new OpenCvSharp.VideoCapture(url))
{
//FourCC fourCC = FourCC.FromFourChars('m', 'p', '4', 'v');
if (!capture.IsOpened())
{
return;
}
//double fps = capture.Get(VideoCaptureProperties.Fps);
//double width = capture.Get(VideoCaptureProperties.FrameWidth);
//double height = capture.Get(VideoCaptureProperties.FrameHeight);
//OpenCvSharp.Size size = new OpenCvSharp.Size(width, height);
using OpenCvSharp.Mat frame = new OpenCvSharp.Mat();
while (_stopPlay == false)
{
if (capture.Read(frame))
{
//win?.ShowImage(frame);
action?.Invoke(frame);
}
}
frame.Dispose();
capture.Dispose();
}
}
public MainWindow()
{
InitializeComponent();
string filename;
var fileDlg = new OpenFileDialog();
if (fileDlg.ShowDialog() == true)
{
filename = fileDlg.FileName;
}
else
{
MessageBox.Show("File is not selected!");
return;
}
video = new OpenCvSharp.VideoCapture(filename);
if (!video.IsOpened())
{
MessageBox.Show("Video is not valid!");
return;
}
renderer = new EquirectToRect(new GLControl(), new System.Drawing.Size(1400, 900), 100 * (float)Math.PI / 180);
renderer.Viewer.Paint += (sender, e) =>
{
renderer.Render(currentFrame);
fps++;
};
renderer.Viewer.Dock = System.Windows.Forms.DockStyle.Fill;
viewer.Child = renderer.Viewer;
DispatcherTimer renderingTimer = new DispatcherTimer();
renderingTimer.Interval = TimeSpan.FromMilliseconds(/*1000 / video.Fps*/ 1);
renderingTimer.Tick += (sender, e) =>
{
if (DateTime.Now.Subtract(lastMeasureTime) > TimeSpan.FromSeconds(1))
{
Title = fps + " fps";
fps = 0;
lastMeasureTime = DateTime.Now;
}
video.Read(currentFrame);
if (currentFrame.Empty())
{
return;
}
renderer.Viewer.Invalidate();
};
renderingTimer.Start();
}
public MainWindow()
{
InitializeComponent();
headset = new FVRHeadset(EFVR_ClientCapabilities.Gaze | EFVR_ClientCapabilities.Orientation);
headset.IsHardwareConnected(out bool isConnected);
Debug.Assert(isConnected, "Hardware is not connected!");
headset.IsHardwareReady(out bool isReady);
Debug.Assert(isReady, "Hardware capabilities are not ready!");
OpenFileDialog dialog = new OpenFileDialog();
if (dialog.ShowDialog() == true)
{
filename = dialog.FileName;
}
else
{
MessageBox.Show("File is not selected!");
return;
}
video = new OpenCvSharp.VideoCapture(filename);
if (!video.IsOpened())
{
MessageBox.Show("Video is not valid!");
return;
}
video_width = (int)video.Get(OpenCvSharp.CaptureProperty.FrameWidth);
video_height = (int)video.Get(OpenCvSharp.CaptureProperty.FrameHeight);
OpenCvSharp.Cv2.NamedWindow("coord", OpenCvSharp.WindowMode.Normal);
OpenCvSharp.Cv2.ResizeWindow("coord", 1600, 900);
renderer = new EquirectToRect(new GLControl(), new System.Drawing.Size(1400, 900), 100 * (float)Math.PI / 180);
renderer.Viewer.Paint += (sender, e) =>
{
renderer.Render(currentFrame);
};
renderer.Viewer.Dock = System.Windows.Forms.DockStyle.Fill;
viewer.Child = renderer.Viewer;
renderingTimer = new DispatcherTimer();
renderingTimer.Interval = TimeSpan.FromMilliseconds(1);
renderingTimer.Tick += (s, e) =>
{
video.Read(currentFrame);
if (currentFrame.Empty())
{
video.Set(OpenCvSharp.CaptureProperty.PosFrames, 0);
return;
}
headset.GetHMDPose(out SFVR_Pose pose);
using (OpenCvSharp.Mat coordmap = currentFrame.Clone())
{
SFVR_Vec3 direction = pose.orientation * SFVR_Vec3.Forward;
GetCoord(direction, video_width, video_height, out int x, out int y);
OpenCvSharp.Cv2.Circle(coordmap, new OpenCvSharp.Point(x, y), 50, new OpenCvSharp.Scalar(0, 0, 255), -1);
OpenCvSharp.Cv2.ImShow("coord", coordmap);
OpenCvSharp.Cv2.WaitKey(1);
}
SFVR_Vec3 eulerAngle = pose.orientation.EulerAngles;
renderer.Pitch = -MathHelper.DegreesToRadians(eulerAngle.x);
renderer.Yaw = MathHelper.DegreesToRadians(eulerAngle.y);
renderer.Roll = MathHelper.DegreesToRadians(eulerAngle.z);
renderer.Viewer.Invalidate();
};
renderingTimer.Start();
}
private void button1_Click(object sender, EventArgs e)
{
DialogResult res = openFileDialog1.ShowDialog();
if (res == DialogResult.OK)
{
string ext = System.IO.Path.GetExtension(openFileDialog1.FileName);
if (ext.ToLower() == ".bmp" || ext.ToLower() == ".jpg" || ext.ToLower() == ".jpeg" || ext.ToLower() == ".png")
{
pictureBox1.Image = CreateImage(openFileDialog1.FileName);
}
if (ext.ToLower() == ".avi" || ext.ToLower() == ".mp4")
{
System.IO.Directory.SetCurrentDirectory(apppath);
System.IO.DirectoryInfo target = new System.IO.DirectoryInfo(@"main\LR\calendar");
foreach (System.IO.FileInfo file in target.GetFiles())
{
file.Delete();
}
int image_num = 1;
video = true;
OpenCvSharp.VideoCapture vcap = new OpenCvSharp.VideoCapture(openFileDialog1.FileName);
while (vcap.IsOpened())
{
if (stopping)
{
break;
}
OpenCvSharp.Mat mat = new OpenCvSharp.Mat();
if (vcap.Read(mat))
{
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();//Memory release
}
if (mat.IsContinuous())
{
pictureBox1.Image = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(mat);
//OpenCvSharp.Cv2.Resize(mat, mat, OpenCvSharp.Size(), 0, 0);
string filename = string.Format(@"main\LR\calendar\{0:D4}.png", image_num);
//pictureBox1.Image.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
OpenCvSharp.Cv2.ImWrite(filename, mat, (int[])null);
image_num++;
//if (image_num > 10) break;
}
else
{
break;
}
Application.DoEvents(); // 非推奨
}
else
{
break;
}
System.Threading.Thread.Sleep((int)(1000 / vcap.Fps));
mat.Dispose();//Memory release
}
Fps = vcap.Fps;
vcap.Dispose();//Memory release
stopping = false;
pictureBox1.Image = CreateImage(@"main\LR\calendar\0001.png");
}
}
}
byte[] CamCapture()
{
mat = new OpenCvSharp.Mat();
cap.Read(mat);
return(mat.ToBytes());
}
private void button1_Click(object sender, EventArgs e)
{
folder = "";
DialogResult res = openFileDialog1.ShowDialog();
if (res == DialogResult.OK)
{
label1.Text = "Image is loading";
label1.Refresh();
string ext = System.IO.Path.GetExtension(openFileDialog1.FileName);
if (ext.ToLower() == ".bmp" || ext.ToLower() == ".jpg" || ext.ToLower() == ".jpeg" || ext.ToLower() == ".png")
{
pictureBox1.Image = CreateImage(openFileDialog1.FileName);
}
if (ext.ToLower() == ".avi" || ext.ToLower() == ".mp4")
{
System.IO.Directory.SetCurrentDirectory(apppath);
System.IO.DirectoryInfo target = new System.IO.DirectoryInfo(@"main\tecoGAN\LR\calendar");
foreach (System.IO.FileInfo file in target.GetFiles())
{
file.Delete();
}
int image_num = 1;
video = true;
OpenCvSharp.VideoCapture vcap = new OpenCvSharp.VideoCapture(openFileDialog1.FileName);
while (vcap.IsOpened())
{
if (stopping)
{
break;
}
OpenCvSharp.Mat mat = new OpenCvSharp.Mat();
if (image_num % 9 == 0)
{
label1.Text = "";
label1.Refresh();
}
else
{
label1.Text = "Image is loading";
label1.Refresh();
}
if (vcap.Read(mat))
{
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();//Memory release
}
if (mat.IsContinuous())
{
pictureBox1.Image = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(mat);
{
//pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;
Bitmap bmp = new Bitmap(
pictureBox1.Image,
pictureBox1.Image.Width * 4,
pictureBox1.Image.Height * 4);
pictureBox1.Image = bmp;
}
if (!checkBox1.Checked)
{
OpenCvSharp.Cv2.Resize(mat, mat, new OpenCvSharp.Size((int)((float)mat.Width * (float)numericUpDown1.Value), (int)((float)mat.Height * (float)numericUpDown1.Value)), 0, 0);
}
else
{
OpenCvSharp.Cv2.Resize(mat, mat, new OpenCvSharp.Size((int)(0.5f + (float)mat.Width / (float)numericUpDown1.Value), (int)(0.5f + (float)mat.Height / (float)numericUpDown1.Value)), 0, 0);
}
string filename = string.Format(@"main\tecoGAN\LR\calendar\{0:D4}.png", image_num);
//pictureBox1.Image.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
OpenCvSharp.Cv2.ImWrite(filename, mat, (int[])null);
image_num++;
//if (image_num > 10) break;
}
else
{
break;
}
Application.DoEvents(); // 非推奨
}
else
{
break;
}
System.Threading.Thread.Sleep((int)(1000 / vcap.Fps));
mat.Dispose();//Memory release
}
Fps = vcap.Fps;
vcap.Dispose();//Memory release
stopping = false;
pictureBox1.Image = CreateImage(@"main\tecoGAN\LR\calendar\0001.png");
}
label1.Text = "";
label1.Refresh();
MessageBox.Show("finished");
}
}