private void button1_Click(object sender, EventArgs e)
{
if (button1.Text == "Start")
{
//MessageBox.Show(_videoDevices[0].ToString());
//Console.WriteLine(_videoDevices[0].ToString());
_videoSource.VideoResolution = videoCapabilities[comboBox1.SelectedIndex];
//_videoSource.NewFrame += new NewFrameEventHandler(video_NewFrame);
_videoSource.GetCameraProperty(CameraControlProperty.Zoom, out int zoom, out CameraControlFlags controlFlags);
_videoSource.GetCameraProperty(CameraControlProperty.Exposure, out int exposure, out CameraControlFlags controlFlags2);
_videoSource.GetCameraProperty(CameraControlProperty.Focus, out int focus, out CameraControlFlags controlFlags3);
_videoSource.GetCameraProperty(CameraControlProperty.Iris, out int iris, out CameraControlFlags controlFlags4);
_videoSource.GetCameraProperty(CameraControlProperty.Roll, out int roll, out CameraControlFlags controlFlags5);
//_videoSource.Start();
modifiedVideoSourcePlayer1.VideoSource = _videoSource;
modifiedVideoSourcePlayer1.Start();
sendImageToAWS();
button1.Text = "Stop";
}
else
{
_videoSource.SignalToStop();
sendImageToAWS();
button1.Text = "Start";
}
}
/// <summary>
/// 输出所有设备信息
/// </summary>
public static void OutputCaptureDeviceInfo()
{
foreach (FilterInfo info in new FilterInfoCollection(FilterCategory.VideoInputDevice))
{
String format = $"CaptureDevice Name:[{info.Name}] MonikerString:[{info.MonikerString}]";
VideoCaptureDevice device = new VideoCaptureDevice(info.MonikerString);
format += $"\nVideoCapabilities FrameSize: ";
foreach (VideoCapabilities cap in device.VideoCapabilities)
{
format += $"{cap.FrameSize} ";
}
format += $"\nSnapshotCapabilities FrameSize: ";
foreach (VideoCapabilities cap in device.SnapshotCapabilities)
{
format += $"{cap.FrameSize} ";
}
format += $"\nCamera Control Properties:";
for (CameraControlProperty pro = CameraControlProperty.Pan; pro <= CameraControlProperty.Focus; pro++)
{
if (device.GetCameraProperty(pro, out int value, out CameraControlFlags flags))
{
if (device.GetCameraPropertyRange(pro, out int minValue, out int maxValue, out int stepSize, out int defaultValue, out CameraControlFlags rFlags))
{
format += $"(CameraControlFlags.{pro}({(int)pro}) value:{value} minValue:{minValue} maxValue:{maxValue} stepSize:{stepSize} defaultValue:{defaultValue} flags:[{flags}] cFlags:[{rFlags}]) ";
}
} // func TryGetPropertyRange
public bool TryGetProperty(VideoCaptureDevice device, out int value, out bool isAuto)
{
if (device.GetCameraProperty(property, out var curValue, out var curFlags))
{
value = curValue;
isAuto = curFlags == CameraControlFlags.Auto;
return(true);
}
private bool move(int howMuch)
{
int curP;
theDevice.GetCameraProperty(camProp, out curP, out camFlags);
curP += howMuch;
bool retVal = theDevice.SetCameraProperty(camProp, curP, camFlags);
return(retVal);
}
private void GetExposureSetting()
{
int exposure;
CameraControlFlags exposureFlag;
videoSource.GetCameraProperty(CameraControlProperty.Exposure,
out exposure,
out exposureFlag);
VideoProperties.Exposure = exposure;
VideoProperties.ExposureFlag = exposureFlag;
}
private static CameraProperty ReadProperty(VideoCaptureDevice device, CameraControlProperty property)
{
CameraProperty p = new CameraProperty();
p.Identifier = property.ToString();
p.Specific = "CameraControl";
p.ReadOnly = false;
p.Type = CameraPropertyType.Integer;
p.Representation = CameraPropertyRepresentation.LinearSlider;
p.CanBeAutomatic = true;
try
{
int min;
int max;
int step;
int defaultValue;
CameraControlFlags flags;
bool success = device.GetCameraPropertyRange(property, out min, out max, out step, out defaultValue, out flags);
if (!success)
{
p.Supported = false;
}
else
{
p.Supported = true;
p.Minimum = min.ToString(CultureInfo.InvariantCulture);
p.Maximum = max.ToString(CultureInfo.InvariantCulture);
int currentValue;
success = device.GetCameraProperty(property, out currentValue, out flags);
if (!success)
{
p.Supported = false;
}
else
{
p.CurrentValue = currentValue.ToString(CultureInfo.InvariantCulture);
p.Automatic = flags == CameraControlFlags.Auto;
}
}
}
catch
{
p.Supported = false;
}
return(p);
}
public int GetExposure()
{
int val;
CameraControlFlags flags;
try {
if (_videoSource.GetCameraProperty(CameraControlProperty.Exposure, out val, out flags))
{
return(val);
}
} catch {
// ignored
}
return(-1);
}
public void PrintAllProperties()
{
int minValue = 0;
int maxValue = 0;
int stepSize = 1;
int defaultValue = 0;
CameraControlFlags controlFlags = 0;
bool success;
//for (int i = 0; i <= 6; i++)
//{
// success = cam.GetCameraPropertyRange((CameraControlProperty)i, out minValue, out maxValue, out stepSize, out defaultValue, out controlFlags);
//}
success = cam.GetCameraProperty(0, out minValue, out controlFlags);
}
public CameraProperty(VideoCaptureDevice camera, CameraControlProperty prop)
{
theDevice = camera;
camProp = prop;
int defval, steps, cur;
bool fail = false;
try
{
fail = !theDevice.GetCameraPropertyRange(prop, out minLimit, out maxLimit, out steps, out defval, out camFlags);
theDevice.GetCameraProperty(camProp, out cur, out camFlags);
}
catch (Exception e)
{
controllable = false;
}
if (fail)
{
controllable = false;
}
}
/// <summary>
/// Initialize access to the camera hardware
/// </summary>
public Cam()
{
// Event used to wait for completion of camera tasks
_finished = new EventWaitHandle(false, EventResetMode.ManualReset);
// Find the integrated camera device
var coll = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (!coll.Any(fi => fi.MonikerString.StartsWith(@"@device:pnp:\\?\usb#vid_5986&pid_2115")))
{
throw new Exception("Integrated Camera device not found");
}
_vdev = new VideoCaptureDevice(coll.First(fi => fi.MonikerString.StartsWith(@"@device:pnp:\\?\usb#vid_5986&pid_2115")).MonikerString);
// Initial settings and hook handlers
_vdev.VideoResolution = _vdev.VideoCapabilities.First(sn => sn.FrameSize == new System.Drawing.Size(320, 240));
_vdev.PlayingFinished += (sender, e) => _finished.Set();
_vdev.NewFrame += (sender, e) =>
{
int o_exp = -3;
CameraControlFlags o_flag = CameraControlFlags.Auto;
if (_cnt == 0)
{
// 1st frame, camera is open and working. Change settings to fixed constants.
_vdev.GetCameraProperty(CameraControlProperty.Exposure, out o_exp, out o_flag);
_vdev.SetCameraProperty(CameraControlProperty.Exposure, -3, CameraControlFlags.Manual);
}
if (_cnt == 4)
{
// 5th frame, keep this frame. Revert camera settings. Signal to stop querying for frames.
_img = e.Frame.Clone(new System.Drawing.Rectangle(0, 0, e.Frame.Width, e.Frame.Height), System.Drawing.Imaging.PixelFormat.DontCare);
_vdev.SetCameraProperty(CameraControlProperty.Exposure, o_exp, o_flag);
_vdev.SignalToStop();
}
_cnt++;
};
}
private VideoParm GetCameraParm()
{
var exposureValue = 0; //曝光-4 -10
var exposureFlage = CameraControlFlags.Auto;
device.GetCameraProperty(CameraControlProperty.Exposure, out exposureValue, out exposureFlage);
var brightnessValue = 0;//亮度 -64 64
var brightnessFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Brightness, out brightnessValue, out brightnessFlage);
var contrastValue = 0;//对比度 0 95
var contrastFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Contrast, out contrastValue, out contrastFlage);
var sharpnessValue = 0;//清晰度 1 7
var sharpnessFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Sharpness, out sharpnessValue, out sharpnessFlage);
var whiteBalanceValue = 0; //白平衡
var whiteBalanceFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.WhiteBalance, out whiteBalanceValue, out whiteBalanceFlage);
var saturationValue = 0; //饱和度
var saturationFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Saturation, out saturationValue, out saturationFlage);
var gammaValue = 0; //伽马
var gammaFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Gamma, out gammaValue, out gammaFlage);
var backlightCompensationValue = 0; //逆光对比
var backlightCompensationFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.BacklightCompensation, out backlightCompensationValue, out backlightCompensationFlage);
//var hueValue = 0; //色调
//var hueFlage = VideoProcAmpFlags.Auto;
//device.GetVideoProperty(VideoProcAmpProperty.Hue, out hueValue, out hueFlage);
VideoParm parm = new VideoParm
{
Baoguang = exposureValue,
Liangdu = brightnessValue,
Duibidu = contrastValue,
Qingxidu = sharpnessValue,
Baipingheng = whiteBalanceValue,
Baohedu = saturationValue,
Gama = gammaValue,
Niguangduibi = backlightCompensationValue,
//Sediao = hueValue
};
return(parm);
}
