/// <summary>
/// Initialises a new MMALCameraComponent.
/// </summary>
public MMALCameraComponent()
: base(MMALParameters.MMAL_COMPONENT_DEFAULT_CAMERA)
{
if (this.CameraInfo == null)
{
this.SetSensorDefaults();
}
if (this.Outputs.Count == 0)
{
throw new PiCameraError("Camera doesn't have any output ports.");
}
this.PreviewPort = this.Outputs[MMALCameraPreviewPort];
this.VideoPort = this.Outputs[MMALCameraVideoPort];
this.StillPort = this.Outputs[MMALCameraStillPort];
/*
* Stereoscopic mode is only supported with the compute module as it requires two camera modules to work.
* I have added the code in for consistency with Raspistill, however this project currently only supports one camera module
* and therefore will not work if enabled.
* See: https://www.raspberrypi.org/forums/viewtopic.php?p=600720
*/
this.PreviewPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.VideoPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.StillPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.Control.SetParameter(MMALParametersCamera.MMAL_PARAMETER_CAMERA_NUM, 0);
var eventRequest = new MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T(
new MMAL_PARAMETER_HEADER_T(MMALParametersCommon.MMAL_PARAMETER_CHANGE_EVENT_REQUEST, Marshal.SizeOf <MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T>()),
MMALParametersCamera.MMAL_PARAMETER_CAMERA_SETTINGS, 1);
if (MMALCameraConfig.SetChangeEventRequest)
{
this.Control.SetChangeEventRequest(eventRequest);
}
}
internal static void SetChangeEventRequest(this IControlPort controlPort, MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T value)
{
MMALCheck(MMALPort.mmal_port_parameter_set(controlPort.Ptr, &value.Hdr), "Unable to set camera event request.");
}
public MMALCameraComponent() : base(MMALParameters.MMAL_COMPONENT_DEFAULT_CAMERA)
{
if (this.CameraInfo == null)
{
this.SetSensorDefaults();
}
if (this.Outputs.Count == 0)
{
throw new PiCameraError("Camera doesn't have any output ports.");
}
this.Control.ObjName = "Control port";
this.PreviewPort = this.Outputs[MMALCameraPreviewPort];
this.PreviewPort.ObjName = "Preview port";
this.VideoPort = this.Outputs[MMALCameraVideoPort];
this.VideoPort.ObjName = "Video port";
this.StillPort = this.Outputs[MMALCameraStillPort];
this.StillPort.ObjName = "Still port";
/*
* Stereoscopic mode is only supported with the compute module as it requires two camera modules to work.
* I have added the code in for consistency with Raspistill, however this project currently only supports one camera module
* and therefore will not work if enabled.
* See: https://www.raspberrypi.org/forums/viewtopic.php?p=600720
*/
this.PreviewPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.VideoPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.StillPort.SetStereoMode(MMALCameraConfig.StereoMode);
this.Control.SetParameter(MMALParametersCamera.MMAL_PARAMETER_CAMERA_NUM, 0);
var eventRequest = new MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T(new MMAL_PARAMETER_HEADER_T(MMALParametersCommon.MMAL_PARAMETER_CHANGE_EVENT_REQUEST, Marshal.SizeOf <MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T>()),
MMALParametersCamera.MMAL_PARAMETER_CAMERA_SETTINGS, 1);
if (MMALCameraConfig.SetChangeEventRequest)
{
this.Control.SetChangeEventRequest(eventRequest);
}
var camConfig = new MMAL_PARAMETER_CAMERA_CONFIG_T(new MMAL_PARAMETER_HEADER_T(MMALParametersCamera.MMAL_PARAMETER_CAMERA_CONFIG, Marshal.SizeOf <MMAL_PARAMETER_CAMERA_CONFIG_T>()),
this.CameraInfo.MaxWidth,
this.CameraInfo.MaxHeight,
0,
1,
MMALCameraConfig.VideoResolution.Width,
MMALCameraConfig.VideoResolution.Height,
3 + Math.Max(0, (MMALCameraConfig.VideoFramerate.Num - 30) / 10),
0,
0,
MMALCameraConfig.ClockMode
);
MMALLog.Logger.Debug("Camera config set");
this.SetCameraConfig(camConfig);
this.Control.EnablePort((Action <MMALBufferImpl, MMALPortBase>)CameraControlCallback);
this.Initialise();
MMALLog.Logger.Debug("Camera component configured.");
}
