#include <camera.h>

Public Member Functions
bool	BeginReadFrame (int level, const void *&out_buffer, int &out_buffer_size)

MMAL_BUFFER_HEADER_T *	BeginReadFrame (int level)

void	EndReadFrame (int level)

int	ReadFrame (int level, void *buffer, int buffer_size)

Public Attributes
MMAL_COMPONENT_T *	CameraComponent

Private Member Functions
	CCamera ()

MMAL_COMPONENT_T *	CreateCameraComponentAndSetupPorts ()

MMAL_COMPONENT_T *	CreateSplitterComponentAndSetupPorts (MMAL_PORT_T *video_ouput_port)

bool	Init (int width, int height, int framerate, int num_levels, bool do_argb_conversion, USemaphore *postOnNewImage)

void	OnCameraControlCallback (MMAL_PORT_T port, MMAL_BUFFER_HEADER_T buffer)

void	Release ()

	~CCamera ()

Static Private Member Functions
static void	CameraControlCallback (MMAL_PORT_T port, MMAL_BUFFER_HEADER_T buffer)

Private Attributes
RASPICAM_CAMERA_PARAMETERS	CameraParameters

int	FrameRate

int	Height

CCameraOutput *	Outputs [4]

MMAL_COMPONENT_T *	SplitterComponent

MMAL_CONNECTION_T *	VidToSplitConn

int	Width

Friends
CCamera *	StartCamera (int width, int height, int framerate, int num_levels, bool do_argb_conversion, USemaphore *postOnNewImg)

void	StopCamera ()

Constructor & Destructor Documentation

CCamera::CCamera ( )

private

References CameraComponent, Outputs, SplitterComponent, and VidToSplitConn.

CCamera::~CCamera ( )

private

Member Function Documentation

bool CCamera::BeginReadFrame	(	int	level,
		const void *&	out_buffer,
		int &	out_buffer_size
	)

gets buffer pointer and size of a locked queue element

References CCameraOutput::BeginReadFrame(), and Outputs.

Referenced by main(), CCameraOutput::ReadFrame(), and UFuncPiCam::run().

MMAL_BUFFER_HEADER_T * CCamera::BeginReadFrame ( int level )

get a buffer entry with the desired pyramid level. the buffer is locked on return.

Parameters

level is level 0..N where 0 has highest resolution.

Returns: the locked buffer or NULL if none available

References CCameraOutput::BeginReadFrame(), and Outputs.

void CCamera::CameraControlCallback	(	MMAL_PORT_T *	port,
		MMAL_BUFFER_HEADER_T *	buffer
	)

staticprivate

References OnCameraControlCallback().

Referenced by CreateCameraComponentAndSetupPorts().

MMAL_COMPONENT_T * CCamera::CreateCameraComponentAndSetupPorts ( )

private

References CameraControlCallback(), CameraParameters, FrameRate, Height, MMAL_CAMERA_CAPTURE_PORT, MMAL_CAMERA_PREVIEW_PORT, MMAL_CAMERA_VIDEO_PORT, raspicamcontrol_set_all_parameters(), and Width.

Referenced by Init().

MMAL_COMPONENT_T * CCamera::CreateSplitterComponentAndSetupPorts ( MMAL_PORT_T * video_ouput_port )

private

Referenced by Init().

void CCamera::EndReadFrame ( int level )

Unlocks buffer

References CCameraOutput::EndReadFrame(), and Outputs.

Referenced by main(), CCameraOutput::ReadFrame(), and UFuncPiCam::run().

bool CCamera::Init	(	int	width,
		int	height,
		int	framerate,
		int	num_levels,
		bool	do_argb_conversion,
		USemaphore *	postOnNewImage
	)

private

References CameraComponent, CameraParameters, CreateCameraComponentAndSetupPorts(), CreateSplitterComponentAndSetupPorts(), FrameRate, Height, MMAL_CAMERA_VIDEO_PORT, Outputs, raspicamcontrol_set_defaults(), CCameraOutput::Release(), SplitterComponent, VidToSplitConn, and Width.

Referenced by StartCamera().

void CCamera::OnCameraControlCallback	(	MMAL_PORT_T *	port,
		MMAL_BUFFER_HEADER_T *	buffer
	)

private

Referenced by CameraControlCallback().

int CCamera::ReadFrame	(	int	level,
		void *	buffer,
		int	buffer_size
	)

gets image data for requested level - all in one call

References Outputs, and CCameraOutput::ReadFrame().

void CCamera::Release ( )

private

References CameraComponent, Outputs, CCameraOutput::Release(), SplitterComponent, and VidToSplitConn.

Referenced by StopCamera().

Friends And Related Function Documentation

CCamera* StartCamera	(	int	width,
		int	height,
		int	framerate,
		int	num_levels,
		bool	do_argb_conversion,
		USemaphore *	postOnNewImg
	)

friend

start camera (only one camera can be created)

Parameters

width	is width of image
height
framerate	- typically 30
num_levels	- assume scaled down versions (>> 1..num_levels)
do_argb_conversion	- convert to ARGB (from ?)