/// <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 VideoMarkerDetector(OpenCvSharp.VideoCapture pack, int min_size)
{
marker_result = new Dictionary <int, List <MarkerStructure> >();
tracker_result = new List <MarkerTrackerStructure>();
min_tracker_size = min_size;
m_data = pack;
}
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 void AddVideoNode(OpenCvSharp.VideoCapture video, string video_name)
{
XmlNode video_node = _MetaData.CreateNode(XmlNodeType.Element, "video", null);
XmlAttribute attribute_frame = _MetaData.CreateAttribute("frame");
attribute_frame.Value = video.Fps.ToString();
video_node.Attributes.Append(attribute_frame);
XmlAttribute attribute_width = _MetaData.CreateAttribute("width");
attribute_width.Value = video.FrameWidth.ToString();
video_node.Attributes.Append(attribute_width);
XmlAttribute attribute_height = _MetaData.CreateAttribute("height");
attribute_height.Value = video.FrameHeight.ToString();
video_node.Attributes.Append(attribute_height);
video_node.InnerText = video_name;
VideoNode.AppendChild(video_node);
}
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();
}
static int Main(string[] args)
{
// print usage
Console.WriteLine("Usage: dotnet csharp_demo.dll [OPTIONS]");
Console.WriteLine("Examples:");
Console.WriteLine(" To specify license directory (for online license for example): dotnet csharp_demo.dll --license_dir license_dir");
Console.WriteLine("");
// parse arguments
bool error = false;
Options options = new Options();
CommandLine.Parser.Default.ParseArguments <Options>(args)
.WithParsed <Options>(opts => options = opts)
.WithNotParsed <Options>(errs => error = true);
// exit if argument parsign error
if (error)
{
return(1);
}
// print values of arguments
Console.WriteLine("Arguments:");
foreach (var opt in options.GetType().GetProperties())
{
Console.WriteLine("--{0} = {1}", opt.Name, opt.GetValue(options, null));
}
Console.WriteLine();
try
{
OpenCvSharp.Window window = new OpenCvSharp.Window("demo");
// create worker
// (we are expecting run from bin folder)
Worker worker = new Worker(
options.config_dir,
options.capturer_config,
options.license_dir);
// here we trying camera open with opencv
const int desiredFrameWidht = 1280;
const int desiredFrameHeight = 720;
int camera_id = 0;
// VideoCapture camera;
OpenCvSharp.VideoCapture camera = new OpenCvSharp.VideoCapture();
for (; camera_id < 10; ++camera_id)
{
camera.Open(camera_id);
camera.Set(OpenCvSharp.CaptureProperty.FrameWidth, desiredFrameWidht);
camera.Set(OpenCvSharp.CaptureProperty.FrameHeight, desiredFrameHeight);
OpenCvSharp.Mat frame = new OpenCvSharp.Mat();
for (int i = 0; i < 10; i++)
{
frame = camera.RetrieveMat();
}
if (frame.Empty())
{
Console.WriteLine("webcam " + camera_id + " not opened");
camera.Release();
}
else
{
break;
}
}
for (;;)
{
OpenCvSharp.Mat frame;
//camera.Grab();
frame = camera.RetrieveMat();
if (frame.Empty())
{
break;
}
// give a frame to the worker
worker.work(frame);
if (27 == (char)OpenCvSharp.Cv2.WaitKey(10))
{
camera.Release();
break;
}
}
// force free resources
// otherwise licence error may occur
// when create sdk object in next time
worker.dispose();
}
catch (Exception e)
{
Console.WriteLine("! exception catched: '" + e + "' ... exiting");
return(1);
}
Console.WriteLine("close program");
return(0);
}
static void Main(string[] args)
{
var wb = OpenCvSharp.XPhoto.SimpleWB.Create();
wb.P = 0.2f;
wb.OutputMin = 8.0f;
var decodedFramesBlock = new TransformBlock <OpenCvSharp.Mat, OpenCvSharp.Mat>(
mat =>
{
return(Task.Run(() => { wb.BalanceWhite(mat, mat); return mat; }));
},
new ExecutionDataflowBlockOptions
{
BoundedCapacity = 10,
MaxDegreeOfParallelism = 10,
EnsureOrdered = true,
}
);
// var inputVideo = new OpenCvSharp.VideoCapture("2017_0928_105336_023.MOV");
var inputVideo = new OpenCvSharp.VideoCapture("YI004801.mp4");
var outputVideo = new OpenCvSharp.VideoWriter("out_lina.mp4", "avc1", inputVideo.Fps, new OpenCvSharp.Size(inputVideo.FrameWidth, inputVideo.FrameHeight));
ConcurrentQueue <OpenCvSharp.Mat> decodedFramesQueue = new ConcurrentQueue <OpenCvSharp.Mat>();
// decoder
Task decodeTask = Task.Factory.StartNew(() =>
{
while (true)
{
var mat = inputVideo.RetrieveMat();
if (mat.Height == 0)
{
Console.WriteLine("DECODED");
decodedFramesBlock.Complete();
break;
}
decodedFramesBlock.SendAsync(mat).Wait();
}
});
Task writeTask = Task.Factory.StartNew(() =>
{
int c = 0;
OpenCvSharp.Mat mat;
while (!decodedFramesBlock.Completion.IsCompleted)
{
++c;
mat = decodedFramesBlock.Receive();
outputVideo.Write(mat);
mat.Dispose();
Console.WriteLine("Frame " + c + " of " + inputVideo.FrameCount);
}
});
decodeTask.Wait();
writeTask.Wait();
Console.WriteLine("ready!");
outputVideo.Release();
/*
* var channels = img.Split();
* channels = channels.Select(c => c.EqualizeHist()).ToArray();
* foreach(var channel in channels)
* {
* channel.ConvertTo(channel, channel.Type(), 0.9, 0);
* }
* OpenCvSharp.Cv2.Merge(channels, img);
*/
}
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");
}
}
}
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");
}
}
