bool ReadV1SensorInfo()
{
var ptr1 = Marshal.AllocHGlobal(Marshal.SizeOf <MmalParameterCameraInfoType>());
var str1 = (MmalParameterHeaderType *)ptr1;
str1->Id = MmalParametersCamera.MmalParameterCameraInfo;
str1->Size = Marshal.SizeOf <MmalParameterCameraInfoType>();
try
{
MmalCheck(MmalPort.GetParameter(Control.Ptr, str1), string.Empty);
var p = (IntPtr)str1;
var s = Marshal.PtrToStructure <MmalParameterCameraInfoType>(p);
if (s.Cameras == null || s.Cameras.Length <= 0)
{
return(false);
}
SensorName = "OV5647";
MaxHeight = s.Cameras[0].MaxHeight;
MaxWidth = s.Cameras[0].MaxWidth;
return(true);
}
catch
{
return(false);
}
finally
{
Marshal.FreeHGlobal(ptr1);
}
}
void ConfigureIntraRefresh(int outputPort)
{
var param = new MmalParameterVideoIntraRefreshType(new MmalParameterHeaderType(MmalParametersVideo.MmalParameterVideoIntraRefresh, Marshal.SizeOf <MmalParameterVideoIntraRefreshType>()), MmalParametersVideo.MmalVideoIntraRefreshT.MmalVideoIntraRefreshBoth, 0, 0, 0, 0);
int airMbs = 0, airRef = 0, cirMbs = 0, pirMbs = 0;
try
{
MmalCheck(MmalPort.GetParameter(Outputs[outputPort].Ptr, param.HdrPtr), "Unable to set video profile.");
airMbs = param.AirMbs;
airRef = param.AirRef;
cirMbs = param.CirMbs;
pirMbs = param.PirMbs;
}
catch
{
/* catch all */
}
param = new MmalParameterVideoIntraRefreshType(new MmalParameterHeaderType(MmalParametersVideo.MmalParameterVideoIntraRefresh, Marshal.SizeOf <MmalParameterVideoIntraRefreshType>()), CameraConfig.IntraRefresh, airMbs, airRef, cirMbs, pirMbs);
MmalCheck(MmalPort.SetParameter(Outputs[outputPort].Ptr, param.HdrPtr), "Unable to set video intra refresh.");
}