// 0 1
// 2 3
void DrawFrame(CamStream c, Graphics g)
{
int x = 0;
int y = 0;
if (c != null)
{
switch (c.Id)
{
case 0:
x = 0;
y = 0;
break;
case 1:
x = 1;
y = 0;
break;
case 2:
x = 0;
y = 1;
break;
case 3:
x = 1;
y = 1;
break;
}
}
var maximumWidth = boundsItem.Width;
var maximumHeight = boundsItem.Height;
var newImageWidth = maximumWidth;
var newImageHeight = maximumHeight;
var image = c.rgbBits;
var ratioX = maximumWidth / (double)image.Width;
var ratioY = maximumHeight / (double)image.Height;
var ratio = ratioX < ratioY ? ratioX : ratioY;
newImageHeight = (int)(image.Height * ratio);
newImageWidth = (int)(image.Width * ratio);
{
int div = 1;
Point pv = new Point(
(int)((maximumWidth - (image.Width * ratio)) / div),
(int)((maximumHeight - (image.Height * ratio)) / div));
//pv.Offset(x * maximumWidth, y * maximumHeight);
g.DrawImage(image, pv.X, pv.Y, newImageWidth, newImageHeight);
var rc = RectangleF.FromLTRB(0, 0, newImageWidth, newImageHeight);
rc.Offset(pv);
g.DrawString(c.Ip, f, Brushes.LimeGreen, rc, sfTopLeft);
//if (c.Id == 1)
{
lock(this)
{
g.DrawString($"{DateTime.Now.ToLongTimeString()}", f, Brushes.LimeGreen, rc, sfTopRight);
}
}
}
}
private void button1_Click(object sender, EventArgs e)
{
Queue<string> camStack = new Queue<string>(textBoxCams.Lines.Where(p => p.Contains(':')));
if (cams.Count == 0)
{
timerUpdate = new System.Windows.Forms.Timer();
timerUpdate.Interval = 1000;
timerUpdate.Tick += new System.EventHandler(this.timerUpdate_Tick);
timerUpdate.Start();
}
Stack<CamStream> camTmp = new Stack<CamStream>(cams);
int i = 0;
while(camStack.Count > 0)
{
var cIp = camStack.Dequeue();
CamStream c;
if (camTmp.Count > 0)
{
c = camTmp.Pop();
}
else
{
c = new CamStream()
{
Ip = cIp,
Worker = new BackgroundWorker(),
Id = i++,
SetEncode = true,
SetView = true,
encoder = TurboJpegEncoder.CreateEncoder()
};
c.Worker.WorkerSupportsCancellation = true;
c.Worker.DoWork += GetCameraFrames_DoWork;
cams.Add(c);
}
c.Worker.RunWorkerAsync(c);
//break;
}
button1.Enabled = false;
buttonStop.Enabled = true;
}
int ProcessJpegFrame(byte[] buff, int size, CamStream c)
{
{
if (buff[0] != 0xFF || buff[1] != 0xD8 ||
buff[size - 2] != 0xFF || buff[size - 1] != 0xD9)
{
Debug.WriteLine("Bad jpeg...");
return -1;
}
c.encoder.EncodeJpegToRGB24(buff, size, ref c.rgb, ref fwidth, ref fheight);
if (c.rgbBits == null)
{
var p = Marshal.UnsafeAddrOfPinnedArrayElement(c.rgb, 0);
int bitsPerPixel = ((int)PixelFormat.Format24bppRgb & 0xff00) >> 8;
int bytesPerPixel = (bitsPerPixel + 7) / 8;
int stride = 4 * ((fwidth * bytesPerPixel + 3) / 4);
c.rgbBits = new Bitmap(fwidth, fheight, stride, PixelFormat.Format24bppRgb, p);
//t.Save("test2.bmp");
//var data = c.rgbBits.LockBits(boundsItem, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
//c.rgbBits.UnlockBits(data);
}
if (SetEncode)
{
lock (img)
{
using (var g = Graphics.FromImage(img))
{
DrawFrame(c, g);
}
}
}
if (SetView && c.rgbBits != null)
{
lock (imgView)
{
using (var gw = Graphics.FromImage(imgView))
{
DrawFrame(c, gw);
}
}
}
}
return 0;
}
