/// <summary>
/// Save a stream of image frames as an AVI video file.
/// </summary>
/// <param name="frames">Ordered list of frames at 30 fps.</param>
/// <param name="width">Frame width.</param>
/// <param name="height">Frame height.</param>
/// <param name="file">Output filename.</param>
public static void SaveAsAvi(List <Color[]> frames, int width, int height, string file)
{
if (frames.Count == 0)
{
return;
}
using (VideoWriter writer = new VideoWriter(file, new Size(width, height),
30, true, VideoCodec.FromName("MJPG"))) {
writer.Open();
foreach (Color[] frame in frames)
{
Bgr <byte>[,] bitmap = new Bgr <byte> [height, width];
int h = 0;
for (int k = 0; k < height; k++)
{
for (int i = 0; i < width; i++)
{
bitmap[k, i] = new Bgr <byte>(frame[h].B, frame[h].G, frame[h].R);
h++;
}
}
writer.Write(bitmap.Lock());
}
writer.Close();
}
}
/// <summary>
/// 获取图像
/// </summary>
public void Cap_Run(object o)
{
VideoCapture cap = new VideoCapture(Path);
VideoWriter output = new VideoWriter();
int videoW = (int)cap.Get(CaptureProperty.FrameHeight);
int videoH = (int)cap.Get(CaptureProperty.FrameHeight);
int fps = (int)cap.Get(CaptureProperty.Fps);
Size videosize = new Size(videoW, videoH);
output.Open("demo.avi", FourCC.MJPG, fps, videosize);
while (true)
{
cap.Read(Source);
output.Write(Source);
//Source.ImWrite("D:\\Show me your Code\\GitHub仓库\\My-ROV-Project\\temp.jpg");
if (Isopen == 0)
{
break;
}
try
{
(this.Owner as MainForm).PicBox_Video.Image = BitmapConverter.ToBitmap(Source);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
if (Isopen == 0)
{
this.th.Abort();
}
}
static void Main()
{
//var reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(scaleForm: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
UI.CloseAll();
}
static void Main()
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
//var reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(autoSize: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
ImageUI.CloseAll();
}
private void RECstart_Click(object sender, EventArgs e)
{
if (REC.Text.Equals("REC start"))
{
//string recSaveTargetDirectory = @"./REC/" + DateTime.Now.ToString("yyyy-MM-dd");
//if (!System.IO.File.Exists(recSaveTargetDirectory))
//{
// System.IO.Directory.CreateDirectory(recSaveTargetDirectory);
//}
string fileName = initPath() + "Rec.avi";
int codec = VideoWriter.FourCC('M', 'J', 'P', 'G');
double fps = 20.0;
writer.Open(fileName, codec, fps, frame.Size(), true);
REC.Text = "REC stop";
}
else
{
if (writer.IsOpened())
{
writer.Release();
}
REC.Text = "REC start";
}
}
private void GenerateVideo(ISampleSource source)
{
Console.WriteLine("Initializing video writer...");
using (var writer = new VideoWriter(options.OutputFile.FullName))
{
writer.Width = 1920;
writer.Height = 1080;
writer.Fps = options.Fps;
writer.AudioSampleRate = source.WaveFormat.SampleRate;
writer.Open();
double totalFrames = FrameMath.CalculateTotalFrames(source, options);
Console.WriteLine("Initializing renderer...");
using (var renderer = new GLRenderer(false))
{
var wallpaper = Image.FromFile(options.WallpaperFile.FullName) as Bitmap;
wallpaperTexture = renderer.LoadTexture(wallpaper);
effectChain.Initialize(source.ToMono(), options);
Console.WriteLine("Generating video...");
float[] sampleBuffer = new float[writer.AudioSamplesPerFrame];
var frameNumber = 0;
while (true)
{
if (writer.WriteVideo)
{
renderer.Clear();
RenderFrame(renderer, new Frame(frameNumber, TimeSpan.FromSeconds(frameNumber / (double)options.Fps)));
var frame = renderer.Snapshot();
writer.WriteVideoFrame(frame);
if (frameNumber % 60 == 0)
{
ProgressHandler?.Invoke(Math.Round(frameNumber / totalFrames * 100.0, 2));
}
frameNumber++;
}
else
{
var read = source.Read(sampleBuffer, 0, sampleBuffer.Length);
if (read > 0)
{
writer.WriteAudioFrame(sampleBuffer);
}
else
{
break;
}
}
}
ProgressHandler?.Invoke(Math.Round(frameNumber / totalFrames * 100.0, 2));
}
}
}
static void Main(string[] args)
{
VideoCapture capture = new VideoCapture("Star.mp4");
Mat frame = new Mat(new Size(capture.FrameWidth, capture.FrameHeight), MatType.CV_8UC3);
VideoWriter videoWriter = new VideoWriter();
bool isWrite = false;
while (true)
{
if (capture.PosFrames == capture.FrameCount)
{
capture.Open("Star.mp4");
}
capture.Read(frame);
Cv2.ImShow("VideoFrame", frame);
int key = Cv2.WaitKey(33);
// Ctrl + D 또는 Alt + D
// 운영체제 별로 다를 수 있습니다.
if (key == 4)
{
videoWriter.Open("Video.avi", FourCC.XVID, 30, frame.Size(), true);
isWrite = true;
}
// Ctrl + X 또는 Alt + X
// 운영체제 별로 다를 수 있습니다.
else if (key == 24)
{
videoWriter.Release();
isWrite = false;
}
else if (key == 'q')
{
break;
}
if (isWrite == true)
{
videoWriter.Write(frame);
}
}
videoWriter.Release();
capture.Release();
Cv2.DestroyAllWindows();
}
public static void SoVüStricherln()
{
var r = new Random();
var maxdim = 1024;
var m = new Mat(maxdim, maxdim, MatType.CV_16SC4);
var vw = new VideoWriter();
vw.Open("video.avi", FourCC.Prompt, 29, m.Size(), true);
Scalar color = new Scalar(10000d, 10000d, 0d, 0d);
var colorchangeconst = 1000;
Point p1 = new Point(0, 0);
Point p2 = new Point(0, 0);
for (int i = 0; i < 10000; i++)
{
var chan = r.Next(0, 4); // pick color channel
var addremnum = r.Next(0, 2) == 0 ? -1 : 1; // add or remove value
color[chan] = Math.Clamp(color[chan] + (colorchangeconst * addremnum), Int16.MinValue, Int16.MaxValue);
p2.X = r.Next(0, maxdim);
p2.Y = r.Next(0, maxdim);
m.Line(p1, p2, color, 1);
p1 = p2;
if (i % 33 == 0)
{
vw.Write(m);
Cv2.ImShow("sickname", m);
Cv2.WaitKey(10);
}
}
vw.Release();
//Cv2.ImShow("sickname", m);
//Cv2.WaitKey();
}
public static void Main(string[] args)
{
var success = FFmpegLoader.Load(FFmpegPath);
if (!success)
{
Console.WriteLine("Could not load FFmpeg");
return;
}
Console.WriteLine($"Loaded FFmpeg v{FFmpegLoader.FFmpegVersion}");
var bitmap = (Bitmap)Image.FromFile(ImagePath);
var audio = CodecFactory.Instance.GetCodec(AudioPath)
.ToSampleSource();
using (var writer = new VideoWriter(OutputPath))
{
writer.Open();
float[] audioData = new float[writer.AudioSamplesPerFrame];
while (true)
{
if (writer.WriteVideo)
{
// Write a video frame
writer.WriteVideoFrame(bitmap);
}
else
{
// Write an audio frame
int read = audio.Read(audioData, 0, audioData.Length);
if (read <= 0)
{
break;
}
writer.WriteAudioFrame(audioData);
}
}
}
}
public void XVID()
{
const string fileName = "temp_XVID.mp4";
try
{
using var writer = new VideoWriter();
var success = writer.Open(
fileName,
VideoCaptureAPIs.ANY,
FourCC.XVID,
15,
new Size(1920, 1440));
Assert.True(success);
}
finally
{
DeleteFile(fileName);
}
}
private void buttonRecord_Click(object sender, EventArgs e)
{
if (_videoWriter == null)
{
_videoWriter = new VideoWriter();
// https://www.atmarkit.co.jp/ait/articles/1610/18/news143_2.html
if (!_videoWriter.Open(@"C:\Users\skeiya\caps\video.mp4", FourCC.MP4V, 20.0, new OpenCvSharp.Size(WIDTH, HEIGHT)))
{
MessageBox.Show("hoge");
return;
}
buttonRecord.Text = "停止";
}
else
{
_videoWriter.Release();
_videoWriter.Dispose();
_videoWriter = null;
buttonRecord.Text = "録画";
}
}
private void playVideowithSaving()
{
Mat save = new Mat();
FileDialog ofd = new SaveFileDialog();
string imagePath;
OpenCvSharp.FourCC codec = OpenCvSharp.FourCC.Default;
OpenCvSharp.CvSize size;
size.Height = input1bitmap.Height;
size.Width = input1bitmap.Width;
FlowArray opticalFlow = new FlowArray();
opticalFlow.Height = input1bitmap.Height;
opticalFlow.Width = input1bitmap.Width;
opticalFlow.Array = new float[2][];
opticalFlow.Array[0] = new float[opticalFlow.Width * opticalFlow.Height];
opticalFlow.Array[1] = new float[opticalFlow.Width * opticalFlow.Height];
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
imagePath = ofd.FileName;
videofilename = String.Format("{0}.avi", imagePath);
}
VideoWriter savevid = new VideoWriter();
savevid.Open(videofilename, codec, 24, size, true);
if (videoSelected)
{
while (!(image.Empty()))
{
input1bitmap = OpenCvSharp.Extensions.BitmapConverter.ToBitmap(image);
sw.Start();
for (int i = 0; i < 1; i++)
{
opticalFlow = HornSchunck.calculateOpticalFlow(input1bitmap, input2bitmap, out int k, opticalFlow);
}
OutputVideo = _CLProcessor.decorateFlowColor(input1bitmap, opticalFlow, HornSchunck.flowInterval, HornSchunck.threshold);
save = OpenCvSharp.Extensions.BitmapConverter.ToMat(OutputVideo.Bitmap);
savevid.Write(save);
pictureBox4.Image.Dispose();
pictureBox5.Image.Dispose();
pictureBox4.Image = OutputVideo.Bitmap;
pictureBox5.Image = input1bitmap;
Application.DoEvents();
pictureBox4.Refresh();
pictureBox5.Refresh();
sw.Stop();
runTime = 1 / (float)sw.Elapsed.TotalSeconds;
label9.Text = String.Format("Frame rate: {0} [fps]", Convert.ToString(runTime));
label9.Visible = true;
sw.Reset();
input2bitmap = input1bitmap;
capture.Read(image);
}
}
videoSelected = false;
capture.Dispose();
image.Dispose();
savevid.Release();
//savevid.Dispose();
pictureBox4.Image.Dispose();
pictureBox5.Image.Dispose();
}
public void Button_Save_Click(object sender, RoutedEventArgs e)
{
try
{
CvSize sz;
string strRECName;
if (savefilename == "name")
{
strRECName = savefolder + @"\" + "video" + "noname" + ".avi";
}
else
{
strRECName = savefolder + @"\" + savefilename + ".avi";
}
if (size.SelectedItem.ToString() == "320,240")
{
sz = new CvSize(320, 240);
}
else if (size.SelectedItem.ToString() == "512,424")
{
sz = new CvSize(512, 424);
}
else return;
vw = new VideoWriter();
vw.Open(strRECName, -1, 30, sz, true);
var panel = this.resourcePanels[this.ListBox_ResourcePanels.SelectedIndex];
this.starttime = DateTime.Now;
this.currentframe = 0;
this.IsRecStarted = true;
this.saveImageIndex = (int)this.SliderTextBox.Slider_Main.Value;
panel.ImageFrameArrived += Panel_ImageFrameArrived;
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
internal static void SuperSchnit()
{
var cryzyform = 2; // 0.5,1,2,3,4
var lp = new ElPalletto();
var rand = new Random();
var brushSizeNP = new NumerPlayer(np =>
{
var fac = rand.Next(0, 2) == 0 ? -1 : 1;
np.N = Math.Clamp(np.N + (fac * rand.Next(0, 4)), 2, 37);
});
brushSizeNP.N = 11;
var radiusInitNp = new NumerPlayer(np =>
{
var fac = rand.Next(0, 2) == 0 ? -1 : 1;
np.N = (int)Math.Clamp(1 + np.N + (fac * np.N * 0.1), 20d, 4000d);
});
radiusInitNp.N = 300;
var r = radiusInitNp.N;
var quad = 0; //quadrant 0,1,2,3
var lenab = 2000;
var lens = Lib.SplitGolden(lenab);
var m = new Mat((int)lens.Y, (int)lens.X, MatType.CV_16SC4);
var vw = new VideoWriter();
vw.Open("video.avi", FourCC.Prompt, 29, m.Size(), true);
var p1 = new Point((int)lens.X / 2, (int)lens.Y / 2);
lp._Color = new Scalar(-20000d, 30000d, -29990d, 30000d);
lp._Color2 = new Scalar(-20000d, 30000d, -29990d, 30000d);
for (int i = 0; i < 1000000; i++)
{
if (r <= brushSizeNP.N / cryzyform)
{
r = radiusInitNp.N;
lp._Color = lp._Color2;
radiusInitNp.Kick();
brushSizeNP.Kick();
if (i % 4 == 0)
{
p1 = new Point2d(rand.Next((int)lens.X), rand.Next((int)lens.Y));
lp.RandomizeColorWithAlpha();
lp._Color2 = lp._Color;
}
}
var circle = Lib.PlotCircle(p1.X, p1.Y, r);
var circpixcountquad = (int)((decimal)circle.Count / 4);
var segment = circle.GetRange(circpixcountquad * quad, circpixcountquad);
int j = 0;
foreach (var p in segment)
{
m.Circle(p, 1, lp._Color, thickness: brushSizeNP.N);
lp.CCChanDir();
j++;
if (j % 150 == 0)
{
vw.Write(m);
}
}
//lp.Darken(0.1);
var rcut = Lib.SplitGolden(r);
r = (int)rcut.X;
p1 = segment.LastOrDefault();
if (quad == 0)
{
p1.Y = p1.Y - r;
}
if (quad == 1)
{
p1.X = p1.X + r;
}
if (quad == 2)
{
p1.Y = p1.Y + r;
}
if (quad == 3)
{
p1.X = p1.X - r;
}
quad = (quad + 1) % 4;
Cv2.ImShow("supafenster", m);
Cv2.WaitKey(1);
}
vw.Release();
}
public static void ImmerDerNaseNach()
{
var lenab = 1524;
var strokeLen = 5;
var brushSize = 20;
var rotationfactor = 15; // neue maximale rotation in Anteilen von Kreis
var rotation = 1d / rotationfactor;
var lens = Lib.SplitGolden(lenab);
var m = new Mat((int)lens.Y, (int)lens.X, MatType.CV_16SC4);
var vw = new VideoWriter();
vw.Open("video.avi", FourCC.Prompt, 29, m.Size(), true);
Scalar color = new Scalar(30000d, 30000d, 0, 0);
var colorchangeconst = 1500;
Point p1 = new Point(lens.X / 2, lens.Y / 2);
var r = new Random();
// this is the direction in the circle ranging from 0 to less than 1;
var direction = r.NextDouble();
for (int i = 0; i < 30000; i++)
{
// COLOR CHANGE
var chan = r.Next(0, 4); // pick color channel
var addremnum = r.Next(0, 2) == 0 ? -1 : 1; // add or remove value
color[chan] = Math.Clamp(color[chan] + (colorchangeconst * addremnum), Int16.MinValue, Int16.MaxValue);
var circle = Lib.PlotCircle(p1.X, p1.Y, strokeLen);
var newStep = circle[(int)(circle.Count * direction)];
newStep = Lib.ContinuePointInRect((int)lens.X, (int)lens.Y, (int)newStep.X, (int)newStep.Y);
// anmalen
m.Circle(newStep, brushSize, color, thickness: -1);
// weiter drehen
var posnegativemultiplier = r.Next(0, 2) == 0 ? -1 : 1;
direction = Lib.ContinuePointInRange(1, direction + (rotation * posnegativemultiplier));
p1 = newStep;
if (i % 5 == 0)
{
posnegativemultiplier = r.Next(0, 2) == 0 ? -1 : 1;
brushSize = Math.Clamp(brushSize + posnegativemultiplier, 5, 30);
}
if (i % 66 == 0)
{
vw.Write(m);
//Cv2.ImShow("sickname2", m);
//Cv2.WaitKey(10);
}
}
vw.Release();
//Cv2.ImShow("sickname", m);
//Cv2.WaitKey();
}
// ======================================
// ======================================
// Drawing processing thread : 描画処理用スレッド
private void Draw_Thread_DoWork(object sender, DoWorkEventArgs e)
{
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
long[] time = new long[2] {
0, 0
};
try
{
while (!stop)
{
sw.Start();
Bitmap src = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Bitmap dst = new Bitmap(pictureBox1.Width, pictureBox1.Height);
Pen redpen = new Pen(Brushes.Red, 5);
Graphics src_g = Graphics.FromImage(src);
Graphics dst_g = Graphics.FromImage(dst);
src_g.CopyFromScreen(new System.Drawing.Point(src.Width * disp_num, 0), new System.Drawing.Point(0, 0), src.Size, CopyPixelOperation.SourceCopy);
dst_g.InterpolationMode = InterpolationMode.NearestNeighbor;
if (top != null && bottom != null && top.X != bottom.X && top.Y != bottom.Y && !isClick)
{
if (top.X < bottom.X && top.Y < bottom.Y)
{
ex_params = new int[4] {
top.X, top.Y, bottom.X - top.X, bottom.Y - top.Y
}
}
;
else if (top.X > bottom.X && top.Y < bottom.Y)
{
ex_params = new int[4] {
bottom.X, top.Y, top.X - bottom.X, bottom.Y - top.Y
}
}
;
else if (top.X < bottom.X && top.Y > bottom.Y)
{
ex_params = new int[4] {
top.X, bottom.Y, bottom.X - top.X, top.Y - bottom.Y
}
}
;
else
{
ex_params = new int[4] {
bottom.X, bottom.Y, top.X - bottom.X, top.Y - bottom.Y
}
};
int[] ratio = new int[2] {
dst.Width / ex_params[2], dst.Height / ex_params[3]
};
Rectangle rect = new Rectangle(ex_params[0] * 2, ex_params[1] * 2, ex_params[2] * 2, ex_params[3] * 2);
Bitmap dst_cut = src.Clone(rect, src.PixelFormat);
if (dst_cut.Width * ratio[1] > pictureBox1.Width)
{
int h = ex_params[3] * ratio[0];
dst_g.DrawImage(dst_cut, 0, (pictureBox1.Height - h) / 2, dst.Width, h);
}
else
{
int w = ex_params[2] * ratio[1];
dst_g.DrawImage(dst_cut, (pictureBox1.Width - w) / 2, 0, w, dst.Height);
}
}
else
{
dst_g.DrawImage(src, 0, 0, src.Width / 2, src.Height / 2);
if (isClick)
{
System.Drawing.Point now = new System.Drawing.Point();
Invoke((MethodInvoker) delegate { now = PointToClient(Cursor.Position); });
now.Y -= menuStrip1.Height;
if (top.X != now.X && top.Y != now.Y)
{
Rectangle rect = new Rectangle();
if (top.X < now.X && top.Y < now.Y)
{
rect = new Rectangle(top, new System.Drawing.Size(now.X - top.X, now.Y - top.Y));
}
else if (top.X < now.X && top.Y < now.Y)
{
rect = new Rectangle(top, new System.Drawing.Size(now.X - top.X, now.Y - top.Y));
}
else if (top.X > now.X && top.Y < now.Y)
{
rect = new Rectangle(now.X, top.Y, top.X - now.X, now.Y - top.Y);
}
else if (top.X < now.X && top.Y > now.Y)
{
rect = new Rectangle(top.X, now.Y, now.X - top.X, top.Y - now.Y);
}
else if (top.X > now.X && top.Y > now.Y)
{
rect = new Rectangle(now, new System.Drawing.Size(top.X - now.X, top.Y - now.Y));
}
dst_g.DrawRectangle(redpen, rect);
}
else
{
dst_g.DrawLine(redpen, top, now);
}
}
}
src_g.Dispose();
dst_g.Dispose();
bmplist.Add(src);
Invoke((MethodInvoker) delegate { pictureBox1.Image = dst; });
time[0] += sw.ElapsedMilliseconds;
time[1]++;
sw.Reset();
}
sw.Stop();
}
catch (Exception str)
{
Console.WriteLine(str);
}
Invoke((MethodInvoker) delegate { draw_label(0); });
writer = new VideoWriter();
if (!Directory.Exists(@"C:\Temp"))
{
Directory.CreateDirectory(@"C:\Temp");
}
writer.Open(@"C:\Temp\" + DateTime.Now.ToString("yyyymmddhhmmss") + ".avi", FourCC.MJPG, 1000 /
(double)(time[0] / time[1]), new OpenCvSharp.Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));
for (int n = 0; n < bmplist.Count; n++)
{
Mat mframe = new Mat();
mframe = bmplist[n].ToMat();
unsafe
{
byte *b = mframe.DataPointer;
for (int i = 0; i < mframe.Width; i++)
{
for (int j = 0; j < mframe.Height; j++)
{
byte p = b[0];
b[0] = b[2];
b[2] = p;
b = b + 4;
}
}
}
writer.Write(mframe);
BeginInvoke((MethodInvoker) delegate { draw_label(n); });
}
}