/// <summary>
/// Disable processing on a component
/// </summary>
public void Disable()
{
var status = MMALNativeMethods.ComponentDisable(this.m_handle);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
throw new MMALException(status);
}
}
/// <summary>
/// Set camera sensor mode. See forum/doc https://www.raspberrypi.org/documentation/raspbian/applications/camera.md
/// </summary>
/// <param name="mode">0 = auto</param>
public void SetSensorMode(int mode)
{
MMAL_STATUS_T status = MMALNativeMethods.PortParameterSet(this.HandleWrapper.control, MMALParameterId.MMAL_PARAMETER_CAMERA_CUSTOM_SENSOR_CONFIG, mode);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
throw new MMALException(status);
}
}
public void SetCameraNum(int camNumber)
{
using (MMAL_PARAMETER_INT32_T_Wrapper param = new MMAL_PARAMETER_INT32_T_Wrapper())
{
param.hdr.id = MMALParameterId.MMAL_PARAMETER_CAMERA_NUM;
param.value = camNumber;
MMAL_STATUS_T status = MMALNativeMethods.PortParameterSet(this.HandleWrapper.control, param);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
throw new MMALException(status);
}
}
}
private /*MMAL_COMPONENT_T*/ IntPtr CreateComponentHandle(MMALComponentName componentName)
{
Console.WriteLine("Creating component " + componentName.Value);
//var status = NativeMethods.ComponentCreate(componentName.Value, out MMAL_COMPONENT_T handle);
//if (status != MMAL_STATUS_T.MMAL_SUCCESS)
// throw new MMALException(status);
//handle.DumpFields();
//return handle;
var status = MMALNativeMethods.ComponentCreate(componentName.Value, out IntPtr handle);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
throw new MMALException(status);
}
return(handle);
//Console.WriteLine($"Ptr={handle}");
//for (int i = 1; i <= 100; i++)
//{
// byte b = Marshal.ReadByte(handle, i - 1);
// Console.Write("{0:X2} ", b);
// if (i % 16 == 0)
// Console.WriteLine();
// else if (i % 8 == 0)
// Console.Write(" ");
//}
//IntPtr namePtr = Marshal.ReadIntPtr(handle, Marshal.SizeOf<IntPtr>() * 2);
//Console.WriteLine($"namePtr={namePtr}");
//string name = Marshal.PtrToStringAnsi(namePtr);
//Console.WriteLine($"name={name}");
//MMAL_COMPONENT_T comp = Marshal.PtrToStructure<MMAL_COMPONENT_T>(handle);
//comp.DumpFields();
////throw new NotImplementedException();
//return comp;
}
public void SetStereoscopicMode(int channel, StereoScopicMode mode)
{
using (MMAL_PARAMETER_STEREOSCOPIC_MODE_T_Wrapper stereo = new MMAL_PARAMETER_STEREOSCOPIC_MODE_T_Wrapper())
{
stereo.hdr.id = MMALParameterId.MMAL_PARAMETER_STEREOSCOPIC_MODE;
stereo.mode = mode.Mode;
if (mode.Mode != MMAL_STEREOSCOPIC_MODE_T.MMAL_STEREOSCOPIC_MODE_NONE)
{
stereo.decimate = mode.Decimate;
stereo.swap_eyes = mode.SwapEyes;
}
MMAL_STATUS_T status = MMALNativeMethods.PortParameterSet(this.HandleWrapper.output[channel], stereo);
//MMAL_STATUS_T status = NativeMethods.PortParameterSet(this.HandleWrapper.GetOutput()[channel], stereo);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
throw new MMALException(status);
}
}
}
public CameraInfo GetCameraInfo(int cameraNum)
{
if (this.m_infoCache.ContainsKey(cameraNum))
{
return(this.m_infoCache[cameraNum]);
}
CameraInfo info = new CameraInfo();
using (MMAL_PARAMETER_CAMERA_INFO_T_Wrapper param = new MMAL_PARAMETER_CAMERA_INFO_T_Wrapper())
{
//param.hdr.DumpOffsets();
//MMAL_PARAMETER_CAMERA_INFO_T param = new MMAL_PARAMETER_CAMERA_INFO_T();
//param.hdr = new MMAL_PARAMETER_HEADER_T();
param.hdr.id = MMALParameterId.MMAL_PARAMETER_CAMERA_INFO;
uint size = param.hdr.size;
param.hdr.size = size - 4u; // Deliberately undersize to check firmware veresion
//param.hdr.size = (uint)(MMAL_PARAMETER_CAMERA_INFO_T.Size - 4);
MMAL_STATUS_T status = MMALNativeMethods.PortParameterGet(this.HandleWrapper.control, param);
if (status != MMAL_STATUS_T.MMAL_SUCCESS)
{
// Running on newer firmware
param.hdr.size = size;
//param.hdr.size = (uint)(MMAL_PARAMETER_CAMERA_INFO_T.Size);
status = MMALNativeMethods.PortParameterGet(this.HandleWrapper.control, param);
if (status == MMAL_STATUS_T.MMAL_SUCCESS && param.num_cameras > cameraNum)
{
info.Width = param.cameras[cameraNum].max_width;
info.Height = param.cameras[cameraNum].max_height;
info.Name = param.cameras[cameraNum].camera_name;
//info.DumpProperties();
}
else
{
Console.WriteLine($"Cannot read camera info, keeping the defaults for OV5647. status={status} param.num_cameras={param.num_cameras}");
//vcos_log_error("Cannot read camera info, keeping the defaults for OV5647");
}
}
else
{
// Older firmware
// Nothing to do here, keep the defaults for OV5647
Console.WriteLine("Older firmware, keeping the defaults for OV5647");
}
}
//Assume defaults
if (string.IsNullOrEmpty(info.Name))
{
info.Name = "OV5647";
}
if (info.Width == 0)
{
info.Width = 2592;
}
if (info.Height == 0)
{
info.Height = 1944;
}
this.m_infoCache.Add(cameraNum, info);
return(info);
}
/// <summary>
/// Destroy a previously created component
/// Release an acquired reference on a component. Only actually destroys the component when
/// the last reference is being released.
/// </summary>
public void Dispose()
{
MMALNativeMethods.ComponentDestroy(this.m_handle);
}
/// <summary>
/// Acquire a reference on a component.
/// Acquiring a reference on a component will prevent a component from being destroyed until
/// the acquired reference is released(by a call to Dispose).
/// References are internally counted so all acquired references need a matching call to
/// release them.
/// </summary>
public void Acquire()
{
MMALNativeMethods.ComponentAcquire(this.m_handle);
}
