/// <summary>
/// Releases resources and prepares
/// the application for closing.
/// </summary>
///
public void Close()
{
// Save last selected audio devices
Settings.Default.LastAudioDevices.Clear();
foreach (AudioCaptureDeviceViewModel dev in AudioCaptureDevices)
{
if (dev.Checked)
{
Settings.Default.LastAudioDevices.Add(dev.DeviceInfo.Guid.ToString());
}
}
if (videoWriter != null && videoWriter.IsOpen)
{
videoWriter.Close();
}
if (videoPlayer != null && videoPlayer.IsRunning)
{
videoPlayer.SignalToStop();
videoPlayer.WaitForStop();
}
if (audioMixer != null && audioMixer.IsRunning)
{
audioMixer.SignalToStop();
audioMixer.WaitForStop();
}
}
private void CloseVideoSource()
{
if (!bOpsStopped)
{
videoPlayer.SignalToStop();
if (videoPlayer.IsRunning)
{
videoPlayer.WaitForStop();
Thread.Sleep(150);
videoPlayer.Stop();
}
if (motionDetector != null)
{
motionDetector.Reset();
}
bOpsStopped = true;
this.lblInfotext.Text.ToUpper();
this.lblInfotext.Text = "You can safely exit the App now.";
this.lblInfotext.Text.ToLower();
}
}
public void StopVideoResource()
{
if (_videoSourcePlayer.IsRunning)
{
_videoSourcePlayer.SignalToStop();
_videoSourcePlayer.WaitForStop();
}
}
// Close video source if it is running
private void CloseCurrentVideoSource()
{
if (videoSourcePlayer.VideoSource != null)
{
videoSourcePlayer.SignalToStop();
videoSourcePlayer.WaitForStop();
videoSourcePlayer.VideoSource = null;
}
}
public static VideoSourcePlayer play(this VideoSourcePlayer videoPlayer, string aviFile)
{
videoPlayer.invokeOnThread(
() => {
var videoSource = new FileVideoSource(aviFile);
videoPlayer.SignalToStop( );
videoPlayer.WaitForStop( );
videoPlayer.VideoSource = videoSource;
videoPlayer.Start( );
});
return(videoPlayer);
}
public void Disconnect()
{
StopRecordingVideo();
_Timer.Stop();
_VideoSourcePlayer.SignalToStop();
_VideoSourcePlayer.WaitForStop();
_VideoSourcePlayer.VideoSource = null;
_VideoCaptureDevice = null;
}
// Stop cameras
public override void StopScanner()
{
timer.Stop();
isScanning = false;
if (videoSourcePlayerDepth != null)
{
videoSourcePlayerDepth.SignalToStop();
videoSourcePlayerDepth.WaitForStop();
}
if (videoSourcePlayerColor != null)
{
videoSourcePlayerColor.SignalToStop();
videoSourcePlayerColor.WaitForStop();
}
}
/// <summary>
/// 关闭摄像头
/// </summary>
public void Disconnect()
{
if (videoSourcePlayer?.VideoSource != null)
{
// stop video device
videoSourcePlayer.SignalToStop();
videoSourcePlayer.WaitForStop();
videoSourcePlayer.VideoSource = null;
}
if (videoDevice.ProvideSnapshots)
{
videoDevice.SnapshotFrame -= VideoDevice_SnapshotFrame;
}
}
private void CloseVideoSource()
{
videoPlayer.SignalToStop();
if (videoPlayer.IsRunning)
{
videoPlayer.WaitForStop();
Thread.Sleep(150);
videoPlayer.Stop();
this.txtBoxInfo.Text = "You can exit Splash now.";
}
//if (motionDetector != null)
// motionDetector.Reset();
}
/// <summary>
/// 关闭摄像头
/// </summary>
private void closeCamera()
{
videPlayer.SignalToStop();
videPlayer.WaitForStop();
tip = "摄像头已经关闭...";
}
// capture webcam
static void CaptureWebCam(string devicename, int delay, int resid, int number, int wait, string format, string filename)
{
// format
ImageFormat imageformat;
if (format.ToLower() == "jpg")
{
imageformat = ImageFormat.Jpeg;
}
else if (format.ToLower() == "png")
{
imageformat = ImageFormat.Png;
}
else if (format.ToLower() == "bmp")
{
imageformat = ImageFormat.Bmp;
}
else
{
throw new ApplicationException("wrong format");
}
// get video devices
FilterInfoCollection videoInputDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoInputDevices.Count == 0)
{
throw new ApplicationException("no cameras");
}
// list all devices
int i = 0;
foreach (FilterInfo device in videoInputDevices)
{
Print("{0,3}: {1}\n", i, device.Name);
++i;
}
// get deviceid
int deviceid = 0; // default
if (devicename != null)
{
if (IsNumber(devicename))
{
deviceid = ToNumber(devicename);
}
else
{
bool found = false;
foreach (FilterInfo device in videoInputDevices)
{
if (device.Name.ToLower().Contains(devicename.ToLower()))
{
found = true; break;
}
++deviceid;
}
if (!found)
{
throw new ApplicationException("wrong devicename");
}
}
}
if (deviceid < 0 || deviceid >= videoInputDevices.Count)
{
throw new ApplicationException("wrong deviceid");
}
// init capture device
VideoCaptureDevice videoCaptureDevice = new VideoCaptureDevice(videoInputDevices[deviceid].MonikerString);
if (videoCaptureDevice.VideoCapabilities.Length == 0)
{
throw new ApplicationException("no camera resolutions");
}
// list all resolutions
Print("Camera {0} resolutions\n", deviceid);
i = 0;
foreach (VideoCapabilities capabilty in videoCaptureDevice.VideoCapabilities)
{
Print("{0,3}: {1} x {2}\n", i, capabilty.FrameSize.Width, capabilty.FrameSize.Height);
++i;
}
// get max resolutionid
if (resid == Int32.MinValue)
{
i = 0;
Size max = new Size(0, 0);
foreach (VideoCapabilities capabilty in videoCaptureDevice.VideoCapabilities)
{
if (capabilty.FrameSize.Width > max.Width || (capabilty.FrameSize.Width == max.Width && capabilty.FrameSize.Height > max.Height))
{
resid = i; // default
max = capabilty.FrameSize;
}
++i;
}
}
if (resid < 0 || resid >= videoCaptureDevice.VideoCapabilities.Length)
{
throw new ApplicationException("wrong resolutionid");
}
videoCaptureDevice.VideoResolution = videoCaptureDevice.VideoCapabilities[resid];
// init player
VideoSourcePlayer videoSourcePlayer = new VideoSourcePlayer();
videoSourcePlayer.VideoSource = videoCaptureDevice;
videoSourcePlayer.Start();
// waiting for first capture
Print("waiting [{0} -d{1} -r{2} -n{3} -w{4} -f{5}] ", deviceid, delay, resid, number, wait, format);
bool captured = false;
for (i = 0; i < 25; ++i)
{
Print(".");
Thread.Sleep(delay * 1000); // increase delay if image is black
if (videoCaptureDevice.IsRunning &&
videoSourcePlayer.IsRunning &&
videoSourcePlayer.GetCurrentVideoFrame() != null)
{
captured = true;
break;
}
}
if (!captured)
{
Print("\n capture failed, increase delay");
}
Print("\n");
// captures images
for (i = 0; i < number; ++i)
{
Bitmap bitmap = videoSourcePlayer.GetCurrentVideoFrame();
if (bitmap == null)
{
Print(" capture failed\n");
}
else
{
string filenamefull;
if (filename == null)
{
filenamefull = "capcam" + deviceid + "-" + DateTime.Now.ToString("yyyyMMdd-HHmmss") + "." + format.ToLower(); // default
}
else
{
string pathname = Path.GetDirectoryName(filename);
string basename = Path.GetFileNameWithoutExtension(filename);
string extension = Path.GetExtension(filename);
if (basename == "")
{
basename = "capcam";
}
if (extension == "")
{
extension = format.ToLower();
}
if (extension[0] == '.')
{
extension = extension.Substring(1);
}
if (number > 1)
{
basename += DateTime.Now.ToString("yyyyMMdd-HHmmss");
}
filenamefull = Path.Combine(pathname, basename) + "." + extension;
}
bitmap.Save(filenamefull, imageformat);
Print(" {0}\n", filenamefull);
}
Thread.Sleep(wait * 1000);
}
// cleanup
videoSourcePlayer.SignalToStop();
videoSourcePlayer.WaitForStop();
videoSourcePlayer.VideoSource = null;
videoCaptureDevice.SignalToStop();
videoCaptureDevice.WaitForStop();
}
public MainWindowViewModel()
{
VPlayer = new VideoSourcePlayer();
StartButtonCommand = new RelayCommand(x => OpenVideoSource(MjpegSource));
StopButtonCommand = new RelayCommand(x => VPlayer.WaitForStop());
}
/// <summary>
/// 关闭摄像头
/// </summary>
private void closeCamera()
{
videPlayer.SignalToStop();
videPlayer.WaitForStop();
}
//关闭摄像头
private static void StopCamera()
{
vid.SignalToStop();
vid.WaitForStop();
}
