/// <summary>
/// Returns the <see cref="CameraInfo"/> for the given <see cref="DsDevice"/>.
/// </summary>
/// <param name="dev">A <see cref="DsDevice"/> to parse name and capabilities for.</param>
/// <returns>The <see cref="CameraInfo"/> for the given device.</returns>
private CameraInfo Caps(DsDevice dev)
{
var camerainfo = new CameraInfo();
// Get the graphbuilder object
var graphBuilder = (IFilterGraph2)new FilterGraph();
// Get the ICaptureGraphBuilder2
var capGraph = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
IBaseFilter capFilter = null;
try
{
int hr = capGraph.SetFiltergraph(graphBuilder);
DsError.ThrowExceptionForHR(hr);
// Add the video device
hr = graphBuilder.AddSourceFilterForMoniker(dev.Mon, null, "Video input", out capFilter);
// DsError.ThrowExceptionForHR(hr);
if (hr != 0)
{
Console.WriteLine("Error in m_graphBuilder.AddSourceFilterForMoniker(). Could not add source filter. Message: " + DsError.GetErrorText(hr));
return null;
}
//hr = m_graphBuilder.AddFilter(capFilter, "Ds.NET Video Capture Device");
//DsError.ThrowExceptionForHR(hr);
object o = null;
DsGuid cat = PinCategory.Capture;
DsGuid type = MediaType.Interleaved;
DsGuid iid = typeof(IAMStreamConfig).GUID;
// Check if Video capture filter is in use
hr = capGraph.RenderStream(cat, MediaType.Video, capFilter, null, null);
if (hr != 0)
{
return null;
}
//hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Interleaved, capFilter, typeof(IAMStreamConfig).GUID, out o);
//if (hr != 0)
//{
hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Video, capFilter,
typeof(IAMStreamConfig).GUID, out o);
DsError.ThrowExceptionForHR(hr);
//}
var videoStreamConfig = o as IAMStreamConfig;
int iCount = 0;
int iSize = 0;
try
{
if (videoStreamConfig != null) videoStreamConfig.GetNumberOfCapabilities(out iCount, out iSize);
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
return null;
}
pscc = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(VideoStreamConfigCaps)));
camerainfo.Name = dev.Name;
camerainfo.DirectshowDevice = dev;
for (int i = 0; i < iCount; i++)
{
VideoStreamConfigCaps scc;
try
{
AMMediaType curMedType;
if (videoStreamConfig != null) hr = videoStreamConfig.GetStreamCaps(i, out curMedType, pscc);
Marshal.ThrowExceptionForHR(hr);
scc = (VideoStreamConfigCaps)Marshal.PtrToStructure(pscc, typeof(VideoStreamConfigCaps));
var CSF = new CamSizeFPS();
CSF.FPS = (int)(10000000 / scc.MinFrameInterval);
CSF.Height = scc.InputSize.Height;
CSF.Width = scc.InputSize.Width;
if (!InSizeFpsList(camerainfo.SupportedSizesAndFPS, CSF))
if (ParametersOK(CSF))
camerainfo.SupportedSizesAndFPS.Add(CSF);
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
}
}
Marshal.FreeCoTaskMem(pscc);
}
finally
{
if (graphBuilder != null)
{
Marshal.ReleaseComObject(graphBuilder);
}
if (capFilter != null)
{
Marshal.ReleaseComObject(capFilter);
}
if (capGraph != null)
{
Marshal.ReleaseComObject(capGraph);
}
}
return camerainfo;
}
/// <summary>
/// Returns the <see cref="CameraInfo"/> for the given <see cref="DsDevice"/>.
/// </summary>
/// <param name="dev">A <see cref="DsDevice"/> to parse name and capabilities for.</param>
/// <returns>The <see cref="CameraInfo"/> for the given device.</returns>
private CameraInfo Caps(DsDevice dev)
{
var camerainfo = new CameraInfo();
// Get the graphbuilder object
var graphBuilder = (IFilterGraph2) new FilterGraph();
// Get the ICaptureGraphBuilder2
var capGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
IBaseFilter capFilter = null;
try
{
int hr = capGraph.SetFiltergraph(graphBuilder);
DsError.ThrowExceptionForHR(hr);
// Add the video device
hr = graphBuilder.AddSourceFilterForMoniker(dev.Mon, null, "Video input", out capFilter);
// DsError.ThrowExceptionForHR(hr);
if (hr != 0)
{
Console.WriteLine("Error in m_graphBuilder.AddSourceFilterForMoniker(). Could not add source filter. Message: " + DsError.GetErrorText(hr));
return(null);
}
//hr = m_graphBuilder.AddFilter(capFilter, "Ds.NET Video Capture Device");
//DsError.ThrowExceptionForHR(hr);
object o = null;
DsGuid cat = PinCategory.Capture;
DsGuid type = MediaType.Interleaved;
DsGuid iid = typeof(IAMStreamConfig).GUID;
// Check if Video capture filter is in use
hr = capGraph.RenderStream(cat, MediaType.Video, capFilter, null, null);
if (hr != 0)
{
return(null);
}
//hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Interleaved, capFilter, typeof(IAMStreamConfig).GUID, out o);
//if (hr != 0)
//{
hr = capGraph.FindInterface(PinCategory.Capture, MediaType.Video, capFilter,
typeof(IAMStreamConfig).GUID, out o);
DsError.ThrowExceptionForHR(hr);
//}
var videoStreamConfig = o as IAMStreamConfig;
int iCount = 0;
int iSize = 0;
try
{
if (videoStreamConfig != null)
{
videoStreamConfig.GetNumberOfCapabilities(out iCount, out iSize);
}
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
return(null);
}
pscc = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(VideoStreamConfigCaps)));
camerainfo.Name = dev.Name;
camerainfo.DirectshowDevice = dev;
for (int i = 0; i < iCount; i++)
{
VideoStreamConfigCaps scc;
try
{
AMMediaType curMedType;
if (videoStreamConfig != null)
{
hr = videoStreamConfig.GetStreamCaps(i, out curMedType, pscc);
}
Marshal.ThrowExceptionForHR(hr);
scc = (VideoStreamConfigCaps)Marshal.PtrToStructure(pscc, typeof(VideoStreamConfigCaps));
var CSF = new CamSizeFPS();
CSF.FPS = (int)(10000000 / scc.MinFrameInterval);
CSF.Height = scc.InputSize.Height;
CSF.Width = scc.InputSize.Width;
if (!InSizeFpsList(camerainfo.SupportedSizesAndFPS, CSF))
{
if (ParametersOK(CSF))
{
camerainfo.SupportedSizesAndFPS.Add(CSF);
}
}
}
catch (Exception)
{
//ErrorLogger.ProcessException(ex, false);
}
}
Marshal.FreeCoTaskMem(pscc);
}
finally
{
if (graphBuilder != null)
{
Marshal.ReleaseComObject(graphBuilder);
}
if (capFilter != null)
{
Marshal.ReleaseComObject(capFilter);
}
if (capGraph != null)
{
Marshal.ReleaseComObject(capGraph);
}
}
return(camerainfo);
}
/// <summary>
/// Returns the maximum and minimum capabilities of the
/// given <see cref="CameraInfo"/> for FPS and size.
/// </summary>
/// <param name="camera">The <see cref="CameraInfo"/> to be checked for.</param>
/// <param name="minFramerate">Out. The minimum available framerate of this device.</param>
/// <param name="maxFramerate">Out. The maximum available framerate of this device.</param>
/// <param name="minWidth">Out. The minimum available width of this device.</param>
/// <param name="maxWidth">Out. The maximum available width of this device.</param>
/// <param name="minHeight">Out. The minimum available height of this device.</param>
/// <param name="maxHeight">Out. The maximum available height of this device.</param>
public void GetMaxMinCaps(
CameraInfo camera,
out int minFramerate,
out int maxFramerate,
out int minWidth,
out int maxWidth,
out int minHeight,
out int maxHeight)
{
minFramerate = int.MaxValue;
maxFramerate = 0;
minWidth = int.MaxValue;
maxWidth = 0;
minHeight = int.MaxValue;
maxHeight = 0;
if (camera.Name == "OgamaScreenCapture Filter")
{
minFramerate = 1;
maxFramerate = 100;
minWidth = 1;
maxWidth = 3000;
minHeight = 1;
maxHeight = 3000;
return;
}
foreach (CamSizeFPS cap in camera.SupportedSizesAndFPS)
{
if (cap.FPS < minFramerate)
{
minFramerate = (int)cap.FPS;
}
if (cap.FPS > maxFramerate)
{
maxFramerate = (int)cap.FPS;
}
if (cap.Width < minWidth)
{
minWidth = (int)cap.Width;
}
if (cap.Width > maxWidth)
{
maxWidth = (int)cap.Width;
}
if (cap.Height < minHeight)
{
minHeight = (int)cap.Height;
}
if (cap.Height > maxHeight)
{
maxHeight = (int)cap.Height;
}
}
}
/// <summary>
/// Initializes a new instance of the WebcamProperties class.
/// </summary>
/// <param name="newVideoInputDevice">The friendly name of the video input device to use.</param>
/// <param name="newAudioInputDevice">The friendly name of the audio input device to use.</param>
/// <param name="newVideoCompressor">The friendly name of the video compressor to use.</param>
/// <param name="newAudioCompressor">The friendly name of the audio compressor to use.</param>
/// <param name="newFrameRate">The frame rate for the video stream.</param>
/// <param name="newVideoSize">The size of the video stream.</param>
/// <param name="newFilename">The filename for the video recording.</param>
/// <param name="newCaptureMode">The <see cref="CaptureMode"/> flags for the recording.</param>
/// <param name="newPreviewWindow">The <see cref="Control"/> where the preview
/// should be shown or null, if no preview should be shown.</param>
public CaptureDeviceProperties(
string newVideoInputDevice,
string newAudioInputDevice,
string newVideoCompressor,
string newAudioCompressor,
int newFrameRate,
Size newVideoSize,
string newFilename,
CaptureMode newCaptureMode,
Control newPreviewWindow)
{
this.videoInputDevice = new CameraInfo();
this.videoInputDevice.Name = newVideoInputDevice;
this.videoCompressor = newVideoCompressor;
this.audioInputDevice = newAudioInputDevice;
this.audioCompressor = newAudioCompressor;
this.frameRate = newFrameRate;
this.videoSize = newVideoSize;
this.filename = newFilename;
this.captureMode = newCaptureMode;
this.previewWindow = newPreviewWindow;
}
private void CheckFramerateAndSize(CameraInfo camera, int newFrameRate, Size newFrameSize)
{
if (camera != null)
{
int minFramerate;
int maxFramerate;
int minWidth;
int maxWidth;
int minHeight;
int maxHeight;
this.GetMaxMinCaps(
camera,
out minFramerate,
out maxFramerate,
out minWidth,
out maxWidth,
out minHeight,
out maxHeight);
CamSizeFPS defaultMode = camera.SupportedSizesAndFPS[camera.SupportedSizesAndFPS.Count - 1];
if (newFrameRate > minFramerate && newFrameRate < maxFramerate)
{
this.captureDeviceProperties.FrameRate = newFrameRate;
}
else
{
this.captureDeviceProperties.FrameRate = defaultMode.FPS;
}
if (newFrameSize.Width >= minWidth && newFrameSize.Width <= maxWidth &&
newFrameSize.Height >= minHeight && newFrameSize.Height <= maxHeight)
{
this.captureDeviceProperties.VideoSize = newFrameSize;
}
else
{
this.captureDeviceProperties.VideoSize =
new Size(defaultMode.Width, defaultMode.Height);
}
}
}
