void GetInterfaces()
{
Type comType = null;
object comObj = null;
try
{
//ICaptureGraphBuilder2 pBuilder = null;
// Initiate Capture Graph Builder
Guid clsid = typeof(CaptureGraphBuilder2).GUID;
comType = Type.GetTypeFromCLSID(clsid);
comObj = Activator.CreateInstance(comType);
m_bCapGraph = (ICaptureGraphBuilder2)comObj;
// Initiate Graph Builder
Guid clsfg = typeof(FilterGraph).GUID;
comType = Type.GetTypeFromCLSID(clsfg); //Clsid.FilterGraph);
comObj = Activator.CreateInstance(comType);
m_bGraph = (IGraphBuilder)comObj;
// Initiate Video Configuration Interface
DsGuid cat = PinCategory.Capture;
DsGuid type = MediaType.Interleaved;
Guid iid = typeof(IAMVideoProcAmp).GUID;
m_bCapGraph.FindInterface(cat, type, capFilter, iid, out comObj);
m_iVidConfig = (IAMVideoProcAmp)comObj;
// test
//m_iVidConfig.Set(VideoProcAmpProperty.WhiteBalance, 0, VideoProcAmpFlags.Manual);
// Initiate Camera Configuration Interface
cat = PinCategory.Capture;
type = MediaType.Interleaved;
iid = typeof(IAMCameraControl).GUID;
m_bCapGraph.FindInterface(cat, type, capFilter, iid, out comObj);
m_iCamConfig = (IAMCameraControl)comObj;
}
catch (Exception ee)
{
if (comObj != null)
Marshal.ReleaseComObject(comObj);
throw new Exception("Could not get interfaces\r\n" + ee.Message);
}
}
private void controlCameraSettings()
{
videoSource.SetCameraProperty(CameraControlProperty.Focus, (int)((255 / 15) * 15), CameraControlFlags.Manual);
videoSource.SetCameraProperty(CameraControlProperty.Zoom, 2, CameraControlFlags.Manual);
videoSource.SetCameraProperty(CameraControlProperty.Pan, 1, CameraControlFlags.Manual);
videoSource.SetCameraProperty(CameraControlProperty.Tilt, -2, CameraControlFlags.Manual);
object o;
Guid IID_IBaseFilter = new Guid("56a86895-0ad4-11ce-b03a-0020af0ba770");
IAMVideoProcAmp vpa = (IAMVideoProcAmp)o;
int pMin, pMax, pSteppingDelta, pDefault;
VideoProcAmpFlags pFlags;
vpa.GetRange(
VideoProcAmpProperty.Brightness,
out pMin,
out pMax,
out pSteppingDelta,
out pDefault,
out pFlags);
vpa.Set(VideoProcAmpProperty.Gain, 20, pFlags);
vpa.Set(VideoProcAmpProperty.Contrast, 70, pFlags);
}
public VideoProcAmpCameraProperty(CameraPropertyDescriptor descriptor, IAMVideoProcAmp videoAmpControl, VideoProcAmpProperty videoAmpProperty)
{
Descriptor = descriptor;
_videoAmpControl = videoAmpControl;
_videoAmpProperty = videoAmpProperty;
UpdateRange();
}
private void CloseInterfaces()
{
try
{
if (graphBuilder != null)
{
IMediaControl mediaCtrl = graphBuilder as IMediaControl;
mediaCtrl.Stop();
}
}
catch {}
if (graphBuilder != null)
{
Marshal.ReleaseComObject(graphBuilder);
graphBuilder = null;
}
if (m_VideoControl != null)
{
Marshal.ReleaseComObject(m_VideoControl);
m_VideoControl = null;
}
if (m_CameraControl != null)
{
Marshal.ReleaseComObject(m_CameraControl);
m_CameraControl = null;
}
bgrData = null;
}
public LifeCamCamera(string name)
{
_name = name;
String moniker = null;
FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
// Match specified camera name to device
for (int i = 0, n = videoDevices.Count; i < n; i++)
{
if (name == videoDevices[i].Name)
{
moniker = videoDevices[i].MonikerString;
break;
}
}
if (moniker == null)
{
return;
}
//throw new Exception("Video device with name '" + name + "' not found.");
Source = new VideoCaptureDevice(moniker);
Source.DesiredFrameRate = 30;
cameraControls = (IAMCameraControl)Source.SourceObject;
videoProcAmp = (IAMVideoProcAmp)Source.SourceObject;
}
/// <summary>
/// 设置亮度
/// </summary>
/// <param name="lightValue">亮度值0 到 100</param>
/// <returns></returns>
public int SetLightValue(int lightValue)
{
int iResult = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
if (videoProcAmp == null)
{
iResult = -1;
return(iResult);
}
int val;
int min;
int max;
int step;
int defaultValue;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
// 设置亮度
if (lightValue != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Brightness, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Brightness, out val, out flags);
//val = min + (max - min) * lightValue / 255;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Brightness, lightValue, flags);
}
}
return(iResult);
}
internal WebcamProperty GetProcAmpProperties(VideoProcAmpProperty property)
{
HResult result = HResult.ERROR_NOT_READY;
WebcamProperty settings = new WebcamProperty
{
_name = property.ToString(),
_procAmpProp = property,
_isProcAmp = true
};
if (_base._webcamMode)
{
IAMVideoProcAmp control = _base.mf_MediaSource as IAMVideoProcAmp;
result = control.GetRange(property, out settings._min, out settings._max, out settings._step, out settings._default, out VideoProcAmpFlags flags);
if (result == Player.NO_ERROR)
{
settings._supported = (flags & VideoProcAmpFlags.Manual) != 0;
settings._autoSupport = (flags & VideoProcAmpFlags.Auto) != 0;
control.Get(property, out settings._value, out flags);
settings._auto = (flags & VideoProcAmpFlags.Auto) != 0;
}
}
_base._lastError = result;
return(settings);
}
/// <summary>
/// 设置饱和度
/// </summary>
/// <param name="SaturationValue">饱和度 0到 100</param>
/// <returns></returns>
public int SetSaturationValue(int SaturationValue)
{
int iResult = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
if (videoProcAmp == null)
{
iResult = -1;
return(iResult);
}
int val;
int min;
int max;
int step;
int defaultValue;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
//设置饱和度
if (SaturationValue != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Saturation, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * SaturationValue / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Saturation, SaturationValue, flags);
}
}
return(iResult);
}
private IAMVideoProcAmp GetIAMVideoProcAmp(DsDevice device)
{
IGraphBuilder m_graph;
/* Create a new graph */
m_graph = (IGraphBuilder) new FilterGraphNoThread();
#if DEBUG
m_rotEntry = new DsROTEntry(m_graph);
#endif
/* Create a capture graph builder to help
* with rendering a capture graph */
var graphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
/* Set our filter graph to the capture graph */
int hr = graphBuilder.SetFiltergraph(m_graph);
DsError.ThrowExceptionForHR(hr);
m_captureDevice = AddFilterByDevice(m_graph,
device);
object ampControl;
int hr11 = graphBuilder.FindInterface(PinCategory.Capture, MediaType.Video, m_captureDevice
, typeof(IAMVideoProcAmp).GUID, out ampControl);
DsError.ThrowExceptionForHR(hr11);
iAMVideoProcAmp = ampControl as IAMVideoProcAmp;
return(iAMVideoProcAmp);
}
/// <summary>
///
/// </summary>
/// <param name="dsDevice"></param>
/// <param name="prop"></param>
/// <returns></returns>
public int GetVideoControl(DsDevice dsDevice, VideoProcAmpProperty prop)
{
IFilterGraph2 filterGraph = new FilterGraph() as IFilterGraph2;
IBaseFilter capFilter = null;
int retVal = 0;
try
{
// add the video input device
int hr = filterGraph.AddSourceFilterForMoniker(dsDevice.Mon, null, "Source Filter", out capFilter);
DsError.ThrowExceptionForHR(hr);
IAMVideoProcAmp videoControl = capFilter as IAMVideoProcAmp;
int min, max, step, default_val;
VideoProcAmpFlags flag = 0;
videoControl.GetRange(prop, out min, out max, out step, out default_val, out flag);
videoControl.Get(prop, out retVal, out flag);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return(retVal);
}
public SelectedProperties(DsDevice dev)
{
InitializeComponent();
webcam = dev;
HIDConnectEvent = new EventHandler(HIDConnected);
HIDDisconnectEvent = new EventHandler(HIDDisconnected);
Guid iid = typeof(IBaseFilter).GUID;
webcam.Mon.BindToObject(null, null, ref iid, out object camDevice);
IBaseFilter camFilter = camDevice as IBaseFilter;
pCameraControl = camFilter as IAMCameraControl;
pVideoProcAmp = camFilter as IAMVideoProcAmp;
webcamName = INI.KeyExists("Name", webcam.DevicePath) ? INI.ReadINI(webcam.DevicePath, "Name") : webcam.Name;
Anchor = AnchorStyles.Left | AnchorStyles.Right;
Padding = new Padding(0);
gBox = new GroupBox
{
AutoSize = true,
AutoSizeMode = AutoSizeMode.GrowAndShrink,
Anchor = AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Top,
Dock = DockStyle.Top,
Text = webcamName,
Margin = new Padding(0)
};
mainLayout = new TableLayoutPanel
{
Name = "TableLayout",
AutoSize = true,
AutoSizeMode = AutoSizeMode.GrowAndShrink,
Location = new Point(gBox.Padding.Left, gBox.Padding.Top + 20),
Dock = DockStyle.Top,
};
gBox.Controls.Add(mainLayout);
Controls.Add(gBox);
InitProperties();
InitHID();
if (hid == null)
{
HIDConnectEvent = new EventHandler(HIDConnected);
Globals._USBControl.HIDConnected += HIDConnectEvent;
}
alertTimer = new System.Timers.Timer
{
Interval = 600,
AutoReset = true,
Enabled = false,
};
alertTimer.Elapsed += AlertTimedEvent;
}
/// <summary>
/// 获取当前饱和度值
/// </summary>
/// <returns></returns>
public int GetSaturationValue()
{
int SaturationValue = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
videoProcAmp.Get(VideoProcAmpProperty.Saturation, out SaturationValue, out flags);
return(SaturationValue);
}
public VideoSetting(IAMVideoProcAmp filter, VideoProcAmpProperty property)
{
_CamFilter = filter;
_CamProperty = property;
_Name = property.ToString();
// Update all defaults min max, etc...
Read();
}
/// <summary>
/// 获取当前亮度值
/// </summary>
/// <returns></returns>
public int GetLightValue()
{
int LightValue = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
videoProcAmp.Get(VideoProcAmpProperty.Brightness, out LightValue, out flags);
return(LightValue);
}
/// <summary>
/// 获取当前对比度值
/// </summary>
/// <returns></returns>
public int GetContrastValue()
{
int ContrastValue = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
videoProcAmp.Get(VideoProcAmpProperty.Contrast, out ContrastValue, out flags);
return(ContrastValue);
}
protected override void FreeResources()
{
/* We run the StopInternal() to avoid any
* Dispatcher VeryifyAccess() issues */
StopInternal();
/* Let's clean up the base
* class's stuff first */
base.FreeResources();
#if DEBUG
if (m_rotEntry != null)
{
m_rotEntry.Dispose();
}
m_rotEntry = null;
#endif
if (m_videoFrame != null)
{
m_videoFrame.Dispose();
m_videoFrame = null;
}
if (m_renderer != null)
{
Marshal.FinalReleaseComObject(m_renderer);
m_renderer = null;
}
if (m_captureDevice != null)
{
Marshal.FinalReleaseComObject(m_captureDevice);
m_captureDevice = null;
}
if (m_sampleGrabber != null)
{
Marshal.FinalReleaseComObject(m_sampleGrabber);
m_sampleGrabber = null;
}
if (m_graph != null)
{
Marshal.FinalReleaseComObject(m_graph);
m_graph = null;
InvokeMediaClosed(new EventArgs());
}
if (m_cameraControl != null)
{
Marshal.FinalReleaseComObject(m_cameraControl);
m_cameraControl = null;
}
if (m_videoProcAmp != null)
{
Marshal.FinalReleaseComObject(m_videoProcAmp);
m_videoProcAmp = null;
}
}
public bool Start(string cam, string MonikerStr)
{
try {
// enumerate video devices
FilterInfoCollection videoDevices = new FilterInfoCollection(AForge.Video.DirectShow.FilterCategory.VideoInputDevice);
// create the video source (check that the camera exists is already done
VideoSource = new VideoCaptureDevice(MonikerStr);
VideoSource.VideoResolution = VideoSource.VideoCapabilities[17];
VideoSource.NewFrame += new NewFrameEventHandler(Video_NewFrame);
ReceivingFrames = false;
// try ten times to start
int tries = 0;
while (tries < 80) // 4s maximum to a camera to start
{
// VideoSource.Start() checks running status, is safe to call multiple times
tries++;
VideoSource.Start();
if (!ReceivingFrames)
{
// 50 ms pause, processing events so that videosource has a chance
for (int i = 0; i < 5; i++)
{
Thread.Sleep(10);
Application.DoEvents();
}
}
else
{
break;
}
}
cameraControls = VideoSource.SourceObject as IAMVideoProcAmp;
if (!ReceivingFrames)
{
return(false);
}
VideoCapabilities Capability = VideoSource.VideoCapabilities[17];
ImgSizeX = Capability.FrameSize.Width;
ImgSizeY = Capability.FrameSize.Height;
ImgCenterX = ImgSizeX / 2;
ImgCenterY = ImgSizeY / 2;
lock (_locker) { } // wait
//PauseProcessing = false;
return(true);
}
catch {
return(false);
}
}
public void InitDevice(DsDevice device, int iWidth, int iHeight)
{
int hr;
object camDevice;
Guid iid = typeof(IBaseFilter).GUID;
device.Mon.BindToObject(null, null, ref iid, out camDevice);
IBaseFilter camFilter = camDevice as IBaseFilter;
m_CameraControl = camFilter as IAMCameraControl;
m_VideoControl = camFilter as IAMVideoProcAmp;
ISampleGrabber sampGrabber = null;
graphBuilder = (IGraphBuilder) new FilterGraph();
//Create the Capture Graph Builder
ICaptureGraphBuilder2 captureGraphBuilder = null;
captureGraphBuilder = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
// Attach the filter graph to the capture graph
hr = captureGraphBuilder.SetFiltergraph(this.graphBuilder);
DsError.ThrowExceptionForHR(hr);
//Add the Video input device to the graph
hr = graphBuilder.AddFilter(camFilter, "WebCam" + deviceNumber);
DsError.ThrowExceptionForHR(hr);
// Configure the sample grabber
sampGrabber = new SampleGrabber() as ISampleGrabber;
ConfigureSampleGrabber(sampGrabber);
IBaseFilter sampGrabberBF = sampGrabber as IBaseFilter;
//Add the Video compressor filter to the graph
hr = graphBuilder.AddFilter(sampGrabberBF, "SampleGrabber" + deviceNumber);
DsError.ThrowExceptionForHR(hr);
IBaseFilter nullRender = new NullRenderer() as IBaseFilter;
graphBuilder.AddFilter(nullRender, "NullRenderer" + deviceNumber);
InitResolution(captureGraphBuilder, camFilter, iWidth, iHeight);
hr = captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video, camDevice, sampGrabberBF, nullRender);
DsError.ThrowExceptionForHR(hr);
SaveSizeInfo(sampGrabber);
Marshal.ReleaseComObject(sampGrabber);
Marshal.ReleaseComObject(captureGraphBuilder);
}
void GetInterfaces()
{
Type comType = null;
object comObj = null;
try
{
//ICaptureGraphBuilder2 pBuilder = null;
// Initiate Capture Graph Builder
Guid clsid = typeof(CaptureGraphBuilder2).GUID;
comType = Type.GetTypeFromCLSID(clsid);
comObj = Activator.CreateInstance(comType);
m_bCapGraph = (ICaptureGraphBuilder2)comObj;
// Initiate Graph Builder
Guid clsfg = typeof(FilterGraph).GUID;
comType = Type.GetTypeFromCLSID(clsfg); //Clsid.FilterGraph);
comObj = Activator.CreateInstance(comType);
m_bGraph = (IGraphBuilder)comObj;
// Initiate Video Configuration Interface
DsGuid cat = PinCategory.Capture;
DsGuid type = MediaType.Interleaved;
Guid iid = typeof(IAMVideoProcAmp).GUID;
m_bCapGraph.FindInterface(cat, type, capFilter, iid, out comObj);
m_iVidConfig = (IAMVideoProcAmp)comObj;
// test
//m_iVidConfig.Set(VideoProcAmpProperty.WhiteBalance, 0, VideoProcAmpFlags.Manual);
// Initiate Camera Configuration Interface
cat = PinCategory.Capture;
type = MediaType.Interleaved;
iid = typeof(IAMCameraControl).GUID;
m_bCapGraph.FindInterface(cat, type, capFilter, iid, out comObj);
m_iCamConfig = (IAMCameraControl)comObj;
}
catch (Exception ee)
{
if (comObj != null)
{
Marshal.ReleaseComObject(comObj);
}
throw new Exception("Could not get interfaces\r\n" + ee.Message);
}
}
public LifeCamCamera(string name, string nameContains, int cameraNumber)
{
_name = "";
String moniker = null;
FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
Console.WriteLine("");
if (!string.IsNullOrEmpty(name))
{
Console.WriteLine("Searching for camera name = '" + name + "'");
}
if (!string.IsNullOrEmpty(nameContains))
{
Console.WriteLine("Searching for camera name contains = '" + nameContains + "'");
}
if (cameraNumber > 0)
{
Console.WriteLine("Searching for camera number = " + cameraNumber);
}
// Match specified camera name to device
for (int i = 0, n = videoDevices.Count; i < n; i++)
{
Console.WriteLine("Camera " + (i + 1) + ": '" + videoDevices[i].Name + "'");
if ((name == videoDevices[i].Name) ||
(!string.IsNullOrEmpty(nameContains) && videoDevices[i].Name.IndexOf(nameContains) >= 0) ||
(cameraNumber == i + 1))
{
moniker = videoDevices[i].MonikerString;
_name = videoDevices[i].Name;
cameraNumberFound = i + 1;
break;
}
}
if (moniker == null)
{
return;
}
//throw new Exception("Video device with name '" + name + "' not found.");
Source = new VideoCaptureDevice(moniker);
Source.DesiredFrameRate = 30;
cameraControls = (IAMCameraControl)Source.SourceObject;
videoProcAmp = (IAMVideoProcAmp)Source.SourceObject;
}
void BuildGraph()
{
int hr = 0;
IBaseFilter filter;
this.graphBuilder = (IFilterGraph2) new FilterGraph();
DsDevice[] devs = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice);
DsDevice dev = devs[0];
hr = this.graphBuilder.AddSourceFilterForMoniker(dev.Mon, null, dev.Name, out filter);
DsError.ThrowExceptionForHR(hr);
this.videoProcAmp = (IAMVideoProcAmp)filter;
}
/// <summary>
///
/// </summary>
/// <param name="dsDevice"></param>
/// <param name="prop"></param>
/// <param name="value"></param>
/// <param name="flag"></param>
public void SetVideoControl(DsDevice dsDevice, VideoProcAmpProperty prop, int value = 0, VideoProcAmpFlags flag = VideoProcAmpFlags.Auto)
{
IFilterGraph2 filterGraph = new FilterGraph() as IFilterGraph2;
IBaseFilter capFilter = null;
try
{
// add the video input device
int hr = filterGraph.AddSourceFilterForMoniker(dsDevice.Mon, null, "Source Filter", out capFilter);
DsError.ThrowExceptionForHR(hr);
IAMVideoProcAmp videoControl = capFilter as IAMVideoProcAmp;
videoControl.Set(prop, value, flag);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public MyCameraControl(string name)
{
_name = name;
String moniker = null;
FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
Encoding e = Encoding.GetEncoding("iso-8859-1");
Console.OutputEncoding = e;
Console.WriteLine("Scanning for video device " + name + "\n");
// Match specified camera name to device
for (int i = 0, n = videoDevices.Count; i < n; i++)
{
Console.WriteLine("Detected video device: " + videoDevices[i].Name + " checking: " + (name.Equals(videoDevices[i].Name)));
if (name == videoDevices[i].Name)
{
moniker = videoDevices[i].MonikerString;
break;
}
}
if (moniker == null)
{
return;
}
//throw new Exception("Video device with name '" + name + "' not found.");
Source = new VideoCaptureDevice(moniker);
Source.DesiredFrameRate = 30;
cameraControls = (IAMCameraControl)Source.SourceObject;
videoProcAmp = (IAMVideoProcAmp)Source.SourceObject;
}
/// <summary>
/// Gets the range and default value of a specified camera property.
/// </summary>
///
/// <param name="property">Specifies the property to query.</param>
/// <param name="minValue">Receives the minimum value of the property.</param>
/// <param name="maxValue">Receives the maximum value of the property.</param>
/// <param name="stepSize">Receives the step size for the property.</param>
/// <param name="defaultValue">Receives the default value of the property.</param>
/// <param name="controlFlags">Receives a member of the <see cref="CameraControlFlags"/> enumeration, indicating whether the property is controlled automatically or manually.</param>
///
/// <returns>Returns true on success or false otherwise.</returns>
///
/// <exception cref="ArgumentException">Video source is not specified - device moniker is not set.</exception>
/// <exception cref="ApplicationException">Failed creating device object for moniker.</exception>
/// <exception cref="NotSupportedException">The video source does not support camera control.</exception>
///
public bool GetVideoPropertyRange(VideoProcAmpProperty property, out int minValue, out int maxValue, out int stepSize, out int defaultValue, out VideoProcAmpFlags controlFlags)
{
bool ret = true;
// check if source was set
if ((deviceMoniker == null) || (string.IsNullOrEmpty(deviceMoniker)))
{
throw new ArgumentException("Video source is not specified.");
}
lock (sync)
{
object tempSourceObject = null;
// create source device's object
try
{
tempSourceObject = FilterInfo.CreateFilter(deviceMoniker);
}
catch
{
throw new ApplicationException("Failed creating device object for moniker.");
}
if (!(tempSourceObject is IAMVideoProcAmp))
{
throw new NotSupportedException("The video source does not support camera control.");
}
IAMVideoProcAmp pCamControl = (IAMVideoProcAmp)tempSourceObject;
int hr = pCamControl.GetRange(property, out minValue, out maxValue, out stepSize, out defaultValue, out controlFlags);
ret = (hr >= 0);
Marshal.ReleaseComObject(tempSourceObject);
}
return(ret);
}
public override void Cleanup()
{
try
{
// To stop the capture filter before stopping the media control
// seems to solve the problem described in the next comment.
// sancta simplicitas...
if (capFilter != null)
{
capFilter.Stop();
}
// The stop or stopwhenready methods sometimes hang ...
// This is a multithreading issue but I don´t solved it yet
// But stopping is needed, otherwise the video device
// is not disposed fast enough (due to GC) so at next initialization
// with other params the video device seems to be in
// use and the GraphBuilder render mehtod fails.
if (mediaControl != null)
{
// This hangs when closing the GT
int hr = mediaControl.Stop();
}
isRunning = false;
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
}
if (capFilter != null)
{
Marshal.ReleaseComObject(capFilter);
capFilter = null;
cameraControl = null;
videoControl = null;
videoStreamConfig = null;
}
if (videoProcAmp != null)
{
Marshal.ReleaseComObject(videoProcAmp);
videoProcAmp = null;
}
if (sampGrabber != null)
{
Marshal.ReleaseComObject(sampGrabber);
sampGrabber = null;
}
if (graphBuilder != null)
{
Marshal.ReleaseComObject(graphBuilder);
graphBuilder = null;
mediaControl = null;
hasValidGraph = false;
}
if (capGraph != null)
{
Marshal.ReleaseComObject(capGraph);
capGraph = null;
}
if (map != IntPtr.Zero)
{
UnmapViewOfFile(map);
map = IntPtr.Zero;
}
if (section != IntPtr.Zero)
{
CloseHandle(section);
section = IntPtr.Zero;
}
#if DEBUG
if (this.rotEntry != null)
{
// This hangs when closing the GT
this.rotEntry.Dispose();
}
#endif
}
/// <summary>
/// Connects to the property changed events of the camera settings.
/// </summary>
//private void Initialize()
//{
// //Settings.Instance.Camera.OnCameraControlPropertyChanged += OnCameraControlPropertyChanged;
// //Settings.Instance.Camera.OnVideoProcAmpPropertyChanged += OnVideoProcAmpPropertyChanged;
// //Settings.Instance.Camera.OnVideoControlFlagsChanged += OnVideoControlFlagsChanged;
// //stopwatch = new Stopwatch();
//}
/// <summary>
/// Build the capture graph for grabber.
/// </summary>
/// <param name="dev">The index of the new capture device.</param>
/// <param name="frameRate">The framerate to use.</param>
/// <param name="width">The width to use.</param>
/// <param name="height">The height to use.</param>
/// <returns>True, if successful, otherwise false.</returns>
private bool SetupGraph(DsDevice dev, int frameRate, int width, int height)
{
int hr;
fps = frameRate; // Not measured, only to expose FPS externally
cameraControl = null;
capFilter = null;
// Get the graphbuilder object
graphBuilder = (IFilterGraph2)new FilterGraph();
mediaControl = graphBuilder as IMediaControl;
try
{
// Create the ICaptureGraphBuilder2
capGraph = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
// Create the SampleGrabber interface
sampGrabber = (ISampleGrabber)new SampleGrabber();
// Start building the graph
hr = capGraph.SetFiltergraph(graphBuilder);
//if (hr != 0)
// ErrorLogger.WriteLine("Error in capGraph.SetFiltergraph. Could not build graph. Message: " +
// DsError.GetErrorText(hr));
#if DEBUG
this.rotEntry = new DsROTEntry(this.graphBuilder);
#endif
this.capFilter = CreateFilter(
FilterCategory.VideoInputDevice,
dev.Name);
if (this.capFilter != null)
{
hr = graphBuilder.AddFilter(this.capFilter, "Video Source");
DsError.ThrowExceptionForHR(hr);
}
//// Add the video device
//hr = graphBuilder.AddSourceFilterForMoniker(dev.Mon, null, "Video input", out capFilter);
//if (hr != 0)
// ErrorLogger.WriteLine(
// "Error in m_graphBuilder.AddSourceFilterForMoniker(). Could not add source filter. Message: " +
// DsError.GetErrorText(hr));
var baseGrabFlt = (IBaseFilter)sampGrabber;
ConfigureSampleGrabber(sampGrabber);
// Add the frame grabber to the graph
hr = graphBuilder.AddFilter(baseGrabFlt, "Ds.NET Grabber");
//if (hr != 0)
// ErrorLogger.WriteLine("Error in m_graphBuilder.AddFilter(). Could not add filter. Message: " +
// DsError.GetErrorText(hr));
// turn on the infrared leds ONLY FOR THE GENIUS WEBCAM
/*
if (!defaultMode)
{
m_icc = capFilter as IAMCameraControl;
CameraControlFlags CamFlags = new CameraControlFlags();
int pMin, pMax, pStep, pDefault;
hr = m_icc.GetRange(CameraControlProperty.Focus, out pMin, out pMax, out pStep, out pDefault, out CamFlags);
m_icc.Set(CameraControlProperty.Focus, pMax, CameraControlFlags.None);
}
*/
//IBaseFilter smartTee = new SmartTee() as IBaseFilter;
//// Add the smart tee filter to the graph
//hr = this.graphBuilder.AddFilter(smartTee, "Smart Tee");
//Marshal.ThrowExceptionForHR(hr);
// Connect the video source output to the smart tee
//hr = capGraph.RenderStream(null, null, capFilter, null, smartTee);
hr = capGraph.RenderStream(PinCategory.Capture, MediaType.Video, capFilter, null, baseGrabFlt);
var errorText = DsError.GetErrorText(hr);
cameraControl = capFilter as IAMCameraControl;
// Set videoProcAmp
object obj;
var iid_IBaseFilter = new Guid("56a86895-0ad4-11ce-b03a-0020af0ba770");
DirectShowDevices.Instance.Cameras[deviceNumber].DirectshowDevice.Mon.BindToObject(
null,
null,
ref iid_IBaseFilter,
out obj);
videoProcAmp = obj as IAMVideoProcAmp;
// If any of the default config items are set
if (frameRate + height + width > 0)
SetConfigParms(capGraph, capFilter, frameRate, width, height);
// Check for successful rendering, if this failed the class cannot be used, so dispose the resources and return false.
if (hr < 0)
{
Cleanup();
return false;
}
else
{
// Otherwise update the SampleGrabber.
SaveSizeInfo(sampGrabber);
hr = sampGrabber.SetBufferSamples(false);
if (hr == 0)
{
hr = sampGrabber.SetOneShot(false);
hr = sampGrabber.SetCallback(this, 1);
}
//if (hr < 0)
// ErrorLogger.WriteLine("Could not set callback function (SetupGraph) in Camera.Capture()");
}
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
Cleanup();
return false;
}
return true;
}
public void UpdateTarget(IAMVideoProcAmp filter)
{
_CamFilter = filter;
Read();
}
/// <summary>
/// 设置摄像头为此配置
/// </summary>
/// <param name="setting">摄像头的配置</param>
/// <param name="asDefault">是否并设为默认</param>
/// <returns></returns>
public int SetSettingValue(VideoSetting setting, bool asDefault = false)
{
if (asDefault)
{
VideoSettingUtils.Instance.SetDefaultSettings(setting);
}
int iResult = 0;
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
if (videoProcAmp == null)
{
iResult = -1;
return(iResult);
}
int val;
int min;
int max;
int step;
int defaultValue;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
// 设置亮度
if (setting.Brightness != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Brightness, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Brightness, out val, out flags);
//val = min + (max - min) * setting.Brightness / 255;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Brightness, setting.Brightness, flags);
}
}
//设置对比度
if (setting.ContrastRatio != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Contrast, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Contrast, out val, out flags);
//val = min + (max - min) * setting.ContrastRatio / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Contrast, setting.ContrastRatio, flags);
}
}//设置饱和度
if (setting.Saturation != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Saturation, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Saturation, setting.Saturation, flags);
}
}
//设置色调
if (setting.Hue != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Hue, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Hue, setting.Hue, flags);
}
}
//设置清晰度
if (setting.Sharpness != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Sharpness, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Sharpness, setting.Sharpness, flags);
}
}
//设置伽玛
if (setting.Gamma != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Gamma, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Gamma, setting.Gamma, flags);
}
}
//设置启用颜色
if (setting.Gamma != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.ColorEnable, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.ColorEnable, Convert.ToInt32(setting.ColorEnable), flags);
}
}
//白平衡
if (setting.WhiteBalance != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.WhiteBalance, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.WhiteBalance, setting.WhiteBalance, flags);
}
}
//背光补偿
if (setting.WhiteBalance != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.BacklightCompensation, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.BacklightCompensation, setting.BacklightCompensation, flags);
}
}
//增益
if (setting.Gain != -1)
{
int hr = videoProcAmp.GetRange(VideoProcAmpProperty.Gain, out min, out max, out step, out defaultValue, out flags);
if (0 == hr)
{
//videoProcAmp.Get(VideoProcAmpProperty.Saturation, out val, out flags);
//val = min + (max - min) * setting.Saturation / 100;
iResult = videoProcAmp.Set(VideoProcAmpProperty.Gain, setting.Gain, flags);
}
}
return(iResult);
}
/// <summary> build the capture graph for grabber. </summary>
private void SetupGraph(DsDevice dev, int iWidth, int iHeight, short iBPP, Control hControl)
{
int hr;
ISampleGrabber sampGrabber = null;
IBaseFilter capFilter = null;
IPin pCaptureOut = null;
IPin pSampleIn = null;
IPin pRenderIn = null;
IAMVideoProcAmp vpa = null;
// Get the graphbuilder object
m_FilterGraph = new FilterGraph() as IFilterGraph2;
try
{
#if DEBUG
m_rot = new DsROTEntry(m_FilterGraph);
#endif
// add the video input device
hr = m_FilterGraph.AddSourceFilterForMoniker(dev.Mon, null, dev.Name, out capFilter);
DsError.ThrowExceptionForHR(hr);
// Find the still pin
m_pinStill = DsFindPin.ByCategory(capFilter, PinCategory.Still, 0);
// Didn't find one. Is there a preview pin?
if (m_pinStill == null)
{
m_pinStill = DsFindPin.ByCategory(capFilter, PinCategory.Preview, 0);
}
//test
ISpecifyPropertyPages pProp = capFilter as ISpecifyPropertyPages;
DsCAUUID caGUID;
hr = pProp.GetPages(out caGUID);
DsError.ThrowExceptionForHR(hr);
// Still haven't found one. Need to put a splitter in so we have
// one stream to capture the bitmap from, and one to display. Ok, we
// don't *have* to do it that way, but we are going to anyway.
if (m_pinStill == null)
{
IPin pRaw = null;
IPin pSmart = null;
// There is no still pin
m_VidControl = null;
// Add a splitter
IBaseFilter iSmartTee = (IBaseFilter) new SmartTee();
try
{
hr = m_FilterGraph.AddFilter(iSmartTee, "SmartTee");
DsError.ThrowExceptionForHR(hr);
// Find the find the capture pin from the video device and the
// input pin for the splitter, and connnect them
pRaw = DsFindPin.ByCategory(capFilter, PinCategory.Capture, 0);
pSmart = DsFindPin.ByDirection(iSmartTee, PinDirection.Input, 0);
hr = m_FilterGraph.Connect(pRaw, pSmart);
DsError.ThrowExceptionForHR(hr);
// Now set the capture and still pins (from the splitter)
m_pinStill = DsFindPin.ByName(iSmartTee, "Preview");
pCaptureOut = DsFindPin.ByName(iSmartTee, "Capture");
// If any of the default config items are set, perform the config
// on the actual video device (rather than the splitter)
if (iHeight + iWidth + iBPP > 0)
{
SetConfigParms(pRaw, iWidth, iHeight, iBPP);
}
}
finally
{
if (pRaw != null)
{
Marshal.ReleaseComObject(pRaw);
}
if (pRaw != pSmart)
{
Marshal.ReleaseComObject(pSmart);
}
if (pRaw != iSmartTee)
{
Marshal.ReleaseComObject(iSmartTee);
}
}
}
else
{
// Get a control pointer (used in Click())
m_VidControl = capFilter as IAMVideoControl;
pCaptureOut = DsFindPin.ByCategory(capFilter, PinCategory.Capture, 0);
// If any of the default config items are set
if (iHeight + iWidth + iBPP > 0)
{
SetConfigParms(m_pinStill, iWidth, iHeight, iBPP);
}
}
// Get the SampleGrabber interface
sampGrabber = new SampleGrabber() as ISampleGrabber;
// Configure the sample grabber
IBaseFilter baseGrabFlt = sampGrabber as IBaseFilter;
ConfigureSampleGrabber(sampGrabber);
pSampleIn = DsFindPin.ByDirection(baseGrabFlt, PinDirection.Input, 0);
// Get the default video renderer
IBaseFilter pRenderer = new VideoRendererDefault() as IBaseFilter;
hr = m_FilterGraph.AddFilter(pRenderer, "Renderer");
DsError.ThrowExceptionForHR(hr);
pRenderIn = DsFindPin.ByDirection(pRenderer, PinDirection.Input, 0);
// Add the sample grabber to the graph
hr = m_FilterGraph.AddFilter(baseGrabFlt, "Ds.NET Grabber");
DsError.ThrowExceptionForHR(hr);
if (m_VidControl == null)
{
// Connect the Still pin to the sample grabber
hr = m_FilterGraph.Connect(m_pinStill, pSampleIn);
DsError.ThrowExceptionForHR(hr);
// Connect the capture pin to the renderer
hr = m_FilterGraph.Connect(pCaptureOut, pRenderIn);
DsError.ThrowExceptionForHR(hr);
}
else
{
// Connect the capture pin to the renderer
hr = m_FilterGraph.Connect(pCaptureOut, pRenderIn);
DsError.ThrowExceptionForHR(hr);
// Connect the Still pin to the sample grabber
hr = m_FilterGraph.Connect(m_pinStill, pSampleIn);
DsError.ThrowExceptionForHR(hr);
}
// Learn the video properties
SaveSizeInfo(sampGrabber);
ConfigVideoWindow(hControl);
// Start the graph
IMediaControl mediaCtrl = m_FilterGraph as IMediaControl;
hr = mediaCtrl.Run();
DsError.ThrowExceptionForHR(hr);
}
finally
{
if (vpa != null)
{
Marshal.ReleaseComObject(vpa);
vpa = null;
}
if (sampGrabber != null)
{
Marshal.ReleaseComObject(sampGrabber);
sampGrabber = null;
}
if (pCaptureOut != null)
{
Marshal.ReleaseComObject(pCaptureOut);
pCaptureOut = null;
}
if (pRenderIn != null)
{
Marshal.ReleaseComObject(pRenderIn);
pRenderIn = null;
}
if (pSampleIn != null)
{
Marshal.ReleaseComObject(pSampleIn);
pSampleIn = null;
}
}
}
private void CloseInterfaces()
{
try
{
if (graphBuilder != null)
{
IMediaControl mediaCtrl = graphBuilder as IMediaControl;
mediaCtrl.Stop();
}
}
catch {}
if (graphBuilder != null)
{
Marshal.ReleaseComObject(graphBuilder);
graphBuilder = null;
}
if (m_VideoControl != null)
{
Marshal.ReleaseComObject(m_VideoControl);
m_VideoControl = null;
}
if (m_CameraControl != null)
{
Marshal.ReleaseComObject(m_CameraControl);
m_CameraControl = null;
}
bgrData = null;
}
public void InitDevice(DsDevice device, int iWidth, int iHeight)
{
int hr;
object camDevice;
Guid iid = typeof(IBaseFilter).GUID;
device.Mon.BindToObject(null, null, ref iid, out camDevice);
IBaseFilter camFilter = camDevice as IBaseFilter;
m_CameraControl = camFilter as IAMCameraControl;
m_VideoControl = camFilter as IAMVideoProcAmp;
ISampleGrabber sampGrabber = null;
graphBuilder = (IGraphBuilder)new FilterGraph();
//Create the Capture Graph Builder
ICaptureGraphBuilder2 captureGraphBuilder = null;
captureGraphBuilder = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
// Attach the filter graph to the capture graph
hr = captureGraphBuilder.SetFiltergraph(this.graphBuilder);
DsError.ThrowExceptionForHR(hr);
//Add the Video input device to the graph
hr = graphBuilder.AddFilter(camFilter, "WebCam" + deviceNumber);
DsError.ThrowExceptionForHR(hr);
// Configure the sample grabber
sampGrabber = new SampleGrabber() as ISampleGrabber;
ConfigureSampleGrabber(sampGrabber);
IBaseFilter sampGrabberBF = sampGrabber as IBaseFilter;
//Add the Video compressor filter to the graph
hr = graphBuilder.AddFilter(sampGrabberBF, "SampleGrabber" + deviceNumber);
DsError.ThrowExceptionForHR(hr);
IBaseFilter nullRender = new NullRenderer() as IBaseFilter;
graphBuilder.AddFilter(nullRender, "NullRenderer" + deviceNumber);
InitResolution(captureGraphBuilder, camFilter, iWidth, iHeight);
hr = captureGraphBuilder.RenderStream(PinCategory.Capture, MediaType.Video, camDevice, sampGrabberBF, nullRender);
DsError.ThrowExceptionForHR(hr);
SaveSizeInfo(sampGrabber);
Marshal.ReleaseComObject(sampGrabber);
Marshal.ReleaseComObject(captureGraphBuilder);
}
private void UpdatePropertiesCache()
{
AMproperties.Clear();
IAMVideoProcAmp vpa = null;
IAMCameraControl cc = null;
try
{
vpa = (IAMVideoProcAmp)Marshal.GetObjectForIUnknown(dev.NativePointer);
foreach (var pVal in Enum.GetValues(typeof(VideoProcAmpProperty)))
{
AMVideoProcAmpProperty p = new AMVideoProcAmpProperty();
p.PropertyName = Enum.GetName(typeof(VideoProcAmpProperty), pVal);
p.ProperyId = (int)pVal;
VideoProcAmpFlags flags;
int hr = vpa.GetRange((VideoProcAmpProperty)pVal, out p.Min, out p.Max, out p.Delta, out p.DefaultValue, out flags);
if (hr != 0)
{
continue;
}
p.PossibleFlags = (int)flags;
hr = vpa.Get((VideoProcAmpProperty)pVal, out p.Value, out flags);
if (hr != 0)
{
continue;
}
p.Flag = (int)flags;
AMproperties.Add(p);
}
}
catch (Exception ex)
{
if (ex.HResult != SharpDX.Result.NoInterface.Code)
{
throw;
}
}
finally
{
if (vpa != null)
{
Marshal.ReleaseComObject(vpa);
}
}
try
{
cc = (IAMCameraControl)Marshal.GetObjectForIUnknown(dev.NativePointer);
foreach (var pVal in Enum.GetValues(typeof(CameraControlProperty)))
{
AMCameraControlProperty p = new AMCameraControlProperty();
p.PropertyName = Enum.GetName(typeof(CameraControlProperty), pVal);
p.ProperyId = (int)pVal;
CameraControlFlags flags;
int hr = cc.GetRange((CameraControlProperty)pVal, out p.Min, out p.Max, out p.Delta, out p.DefaultValue, out flags);
if (hr != 0)
{
continue;
}
p.PossibleFlags = (int)flags;
hr = cc.Get((CameraControlProperty)pVal, out p.Value, out flags);
if (hr != 0)
{
continue;
}
p.Flag = (int)flags;
AMproperties.Add(p);
}
}
catch (Exception ex)
{
if (ex.HResult != SharpDX.Result.NoInterface.Code)
{
throw;
}
}
finally
{
if (cc != null)
{
Marshal.ReleaseComObject(cc);
}
}
}
public void SetupProperties(DsDevice dev, int brightness, int contrast, int backlightcompensation, int sharpness)
{
object o;
Guid IID_IBaseFilter = new Guid("56a86895-0ad4-11ce-b03a-0020af0ba770");
dev.Mon.BindToObject(null, null, ref IID_IBaseFilter, out o);
IAMVideoProcAmp vpa = (IAMVideoProcAmp)o;
int pMin, pMax, pSteppingDelta, pDefault;
int pMin2, pMax2, pSteppingDelta2, pDefault2;
int pMin3, pMax3, pSteppingDelta3, pDefault3;
int pMin4, pMax4, pSteppingDelta4, pDefault4;
//int pMin5, pMax5, pSteppingDelta5, pDefault5;
VideoProcAmpFlags pFlags, pFlags2, pFlags3, pFlags4;//, pFlags5;
vpa.GetRange(
VideoProcAmpProperty.Brightness,
out pMin,
out pMax,
out pSteppingDelta,
out pDefault,
out pFlags);
vpa.GetRange(
VideoProcAmpProperty.Sharpness,
out pMin2,
out pMax2,
out pSteppingDelta2,
out pDefault2,
out pFlags2);
vpa.GetRange(
VideoProcAmpProperty.BacklightCompensation,
out pMin3,
out pMax3,
out pSteppingDelta3,
out pDefault3,
out pFlags3);
vpa.GetRange(
VideoProcAmpProperty.Contrast,
out pMin4,
out pMax4,
out pSteppingDelta4,
out pDefault4,
out pFlags4);
//vpa.GetRange(
//VideoProcAmpProperty.ColorEnable,
//out pMin5,
//out pMax5,
//out pSteppingDelta5,
//out pDefault5,
//out pFlags5);
//Here I will change the settings of the camera!
if (brightness >= pMin && brightness <= pMax)
{
vpa.Set(VideoProcAmpProperty.Brightness, brightness, pFlags);
}
if (sharpness >= pMin2 && sharpness <= pMax2)
{
vpa.Set(VideoProcAmpProperty.Sharpness, sharpness, pFlags2);
}
if (backlightcompensation >= pMin3 && backlightcompensation <= pMax3)
{
vpa.Set(VideoProcAmpProperty.BacklightCompensation, backlightcompensation, pFlags3);
}
if (contrast >= pMin4 && contrast <= pMax)
{
vpa.Set(VideoProcAmpProperty.Contrast, contrast, pFlags4);
}
}
/// <summary>
/// 保存当前的相机设置
/// </summary>
public void SaveCurrentOriginSetting(string VideoSettingName, bool AsDefault)
{
IAMVideoProcAmp videoProcAmp = theDevice as IAMVideoProcAmp;
VideoProcAmpFlags flags = VideoProcAmpFlags.Manual;
//亮度值 0到255
int LightValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Brightness, out LightValue, out flags);
//对比度 0到255
int ContrastValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Contrast, out ContrastValue, out flags);
//饱和度 0到255
int SaturationValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Saturation, out SaturationValue, out flags);
//色调 -127 到127
int HueValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Hue, out HueValue, out flags);
//清晰度 0到15
int SharpnessValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Sharpness, out SharpnessValue, out flags);
//伽玛 1到8
int GammaValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.Gamma, out GammaValue, out flags);
//启用颜色 不支持
int ColorEnable = 0;
videoProcAmp.Get(VideoProcAmpProperty.ColorEnable, out ColorEnable, out flags);
//白平衡 不支持
int WhiteBalanceValue = 0;
videoProcAmp.Get(VideoProcAmpProperty.WhiteBalance, out WhiteBalanceValue, out flags);
//背光补偿 1 到 5
int BacklightCompensation = 0;
videoProcAmp.Get(VideoProcAmpProperty.BacklightCompensation, out BacklightCompensation, out flags);
//增益 不支持
int Gain = 0;
videoProcAmp.Get(VideoProcAmpProperty.Gain, out Gain, out flags);
VideoSetting setting = new VideoSetting();
setting.Brightness = LightValue;
setting.VideoSettingName = VideoSettingName;
setting.ContrastRatio = ContrastValue;
setting.Saturation = SaturationValue;
setting.Hue = HueValue;
setting.Sharpness = SharpnessValue;
setting.Gamma = GammaValue;
setting.ColorEnable = Convert.ToBoolean(ColorEnable);
setting.WhiteBalance = WhiteBalanceValue;
setting.BacklightCompensation = BacklightCompensation;
setting.Gain = Gain;
setting.DefaultSetting = AsDefault;
VideoSettingUtils.Instance.SaveVideoSetting(setting, AsDefault);
}
/// <summary>
/// Build the capture graph for grabber.
/// </summary>
/// <param name="dev">The index of the new capture device.</param>
/// <param name="frameRate">The framerate to use.</param>
/// <param name="width">The width to use.</param>
/// <param name="height">The height to use.</param>
/// <returns>True, if succesfull, otherwise false.</returns>
private bool SetupGraph(DsDevice dev, int frameRate, int width, int height)
{
int hr;
this.fps = frameRate; // Not measured, only to expose FPS externally
this.cameraControl = null;
this.capFilter = null;
// Get the graphbuilder object
this.graphBuilder = (IFilterGraph2) new FilterGraph();
this.mediaControl = this.graphBuilder as IMediaControl;
try
{
// Create the ICaptureGraphBuilder2
this.capGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
// Create the SampleGrabber interface
this.sampGrabber = (ISampleGrabber) new SampleGrabber();
// Start building the graph
hr = this.capGraph.SetFiltergraph(this.graphBuilder);
if (hr != 0)
{
ErrorLogger.WriteLine("Error in capGraph.SetFiltergraph. Could not build graph. Message: " + DsError.GetErrorText(hr));
}
#if DEBUG
this.rotEntry = new DsROTEntry(this.graphBuilder);
#endif
// Add the video device
hr = this.graphBuilder.AddSourceFilterForMoniker(dev.Mon, null, "Video input", out this.capFilter);
if (hr != 0)
{
ErrorLogger.WriteLine("Error in m_graphBuilder.AddSourceFilterForMoniker(). Could not add source filter. Message: " + DsError.GetErrorText(hr));
}
IBaseFilter baseGrabFlt = (IBaseFilter)this.sampGrabber;
this.ConfigureSampleGrabber(this.sampGrabber);
// Add the frame grabber to the graph
hr = this.graphBuilder.AddFilter(baseGrabFlt, "Ds.NET Grabber");
if (hr != 0)
{
ErrorLogger.WriteLine("Error in m_graphBuilder.AddFilter(). Could not add filter. Message: " + DsError.GetErrorText(hr));
}
this.cameraControl = this.capFilter as IAMCameraControl;
// turn on the infrared leds ONLY FOR THE GENIUS WEBCAM
/*
* if (!defaultMode)
* {
* m_icc = capFilter as IAMCameraControl;
* CameraControlFlags CamFlags = new CameraControlFlags();
* int pMin, pMax, pStep, pDefault;
*
* hr = m_icc.GetRange(CameraControlProperty.Focus, out pMin, out pMax, out pStep, out pDefault, out CamFlags);
* m_icc.Set(CameraControlProperty.Focus, pMax, CameraControlFlags.None);
* }
*/
// Set videoProcAmp
object obj;
Guid iid_IBaseFilter = new Guid("56a86895-0ad4-11ce-b03a-0020af0ba770");
Devices.Current.Cameras[0].DirectshowDevice.Mon.BindToObject(
null,
null,
ref iid_IBaseFilter,
out obj);
this.videoProcAmp = obj as IAMVideoProcAmp;
// If any of the default config items are set
if (frameRate + height + width > 0)
{
this.SetConfigParms(this.capGraph, this.capFilter, frameRate, width, height);
}
hr = this.capGraph.RenderStream(PinCategory.Capture, MediaType.Video, this.capFilter, null, baseGrabFlt);
// Check for succesful rendering, if this failed the class cannot be used, so dispose the resources and return false.
if (hr < 0)
{
string error = DsError.GetErrorText(hr);
MessageBox.Show(error);
this.Dispose();
return(false);
}
else
{
// Otherwise update the SampleGrabber.
this.SaveSizeInfo(this.sampGrabber);
hr = this.sampGrabber.SetBufferSamples(false);
if (hr == 0)
{
hr = this.sampGrabber.SetOneShot(false);
}
if (hr == 0)
{
hr = this.sampGrabber.SetCallback(this, 1);
}
if (hr < 0)
{
ErrorLogger.WriteLine("Could not set callback function (SetupGraph) in Camera.Capture()");
}
}
}
catch (Exception ex)
{
ErrorLogger.ProcessException(ex, false);
this.Dispose();
return(false);
}
return(true);
}
