///<summary> Create a capture using the specific camera</summary>
///<param name="camIndex"> The index of the camera to create capture from, starting from 0</param>
private CapturePi(int camIndex, CaptureConfig config)
{
CaptureSource = CaptureModuleType.Camera;
InitOpenCV();
InitCapture(camIndex, PiCameraConfig.FromConfig(config));
RequestedConfig = config;
}
public static PiCameraConfig FromConfig(CaptureConfig config)
{
var s = new PiCameraConfig();
if (config == null)
{
s.Width = 0;
s.Height = 0;
s.Bitrate = 0;
s.Framerate = 0;
s.Monochrome = 0;
}
else
{
s.Width = config.Resolution.Width;
s.Height = config.Resolution.Height;
s.Bitrate = config.Bitrate;
s.Framerate = config.Framerate;
s.Monochrome = config.Monochrome ? 1 : 0;
}
return(s);
}
public static PiCameraConfig FromConfig(CaptureConfig config)
{
var s = new PiCameraConfig();
if (config == null)
{
s.Width = 0;
s.Height = 0;
s.Bitrate = 0;
s.Framerate = 0;
s.Monochrome = 0;
}
else
{
s.Width = config.Resolution.Width;
s.Height = config.Resolution.Height;
s.Bitrate = config.Bitrate;
s.Framerate = config.Framerate;
s.Monochrome = config.Monochrome ? 1 : 0;
}
return s;
}
private void InitCapture(int camIndex, PiCameraConfig config)
{
try
{
if (config.Width == 0)
{
_ptr = CvInvokeRaspiCamCV.cvCreateCameraCapture(camIndex);
}
else
{
Log.InfoFormat("Requesting capture config {0}", config);
_ptr = CvInvokeRaspiCamCV.cvCreateCameraCapture2(camIndex, ref config);
}
}
catch (DllNotFoundException e)
{
Log.Fatal("Are you running with the solution configuration matched to the right OS? or missing libraspicamcv.so?", e);
throw;
}
if (_ptr == IntPtr.Zero)
{
throw new NullReferenceException($"Error: Unable to create capture from camera #{camIndex}");
}
}
private void InitCapture(int camIndex, PiCameraConfig config)
{
try
{
if (config.Width == 0)
{
_ptr = CvInvokeRaspiCamCV.cvCreateCameraCapture(camIndex);
}
else
{
Log.InfoFormat("Requesting capture config {0}", config);
_ptr = CvInvokeRaspiCamCV.cvCreateCameraCapture2(camIndex, ref config);
}
}
catch (DllNotFoundException e)
{
Log.Fatal("Are you running with the solution configuration matched to the right OS? or missing libraspicamcv.so?", e);
throw;
}
if (_ptr == IntPtr.Zero)
{
throw new NullReferenceException(String.Format("Error: Unable to create capture from camera {0}", camIndex));
}
}
public static extern IntPtr cvCreateCameraCapture2(int index, ref PiCameraConfig config);
public static extern IntPtr cvCreateCameraCapture2(int index, ref PiCameraConfig config);