CVD::V4L2Buffer_Base Class Reference
[Video buffers]

#include <v4l2buffer.h>

Inheritance diagram for CVD::V4L2Buffer_Base:

[legend]

List of all members.

Public Member Functions
bool	frame_pending ()
double	frame_rate ()
V4L2FrameT< unsigned char > *	get_frame ()
void	put_frame (V4L2FrameT< unsigned char > *f)
	Tell the buffer that you are finished with this frame. Overloaded version of VideoBuffer<T>::put_frame().
void	put_frame (VideoFrame< unsigned char > *f)
	Tell the buffer that you are finished with this frame. Overloaded version of VideoBuffer<T>::put_frame().
ImageRef	size ()
	V4L2Buffer_Base (const char *devname, bool fields, V4L2BufferBlockMethod block, int input, int numbufs, unsigned long int pixtpe)
	~V4L2Buffer_Base ()
Private Member Functions
int	operator= (V4L2Buffer_Base &copyof)
	V4L2Buffer_Base (V4L2Buffer_Base &copyof)
Private Attributes
std::string	device
bool	i_am_using_fields
int	m_nVideoFileDesc
void **	m_pvVideoBuffer
struct v4l2_buffer *	m_sv4l2Buffer
V4L2BufferBlockMethod	my_block_method
int	my_dropped_frames
int	my_fd
double	my_frame_rate
ImageRef	my_image_size
int	my_prev_frame_no
int	num_buffers

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Detailed Description

A live video buffer from a the framegrabber (using the Video for Linux 2 API). This provides 8-bit greyscale video frames of type CVD::V4L2Frame and throws exceptions of type CVD::Exceptions::V4L2Buffer

Definition at line 96 of file v4l2buffer.h.

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Constructor & Destructor Documentation

CVD::V4L2Buffer_Base::V4L2Buffer_Base	(	const char *	devname,
		bool	fields,
		V4L2BufferBlockMethod	block,
		int	input,
		int	numbufs,
		unsigned long int	pixtpe
	)

Construct a video buffer

Parameters:

	devname	The device name
	fields
	block	Which buffer block method to use
	input	Which card input?
	numbufs	How many buffers?

CVD::V4L2Buffer_Base::~V4L2Buffer_Base

(

)

CVD::V4L2Buffer_Base::V4L2Buffer_Base

(

V4L2Buffer_Base &

copyof

)

[private]

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Member Function Documentation

bool CVD::V4L2Buffer_Base::frame_pending

(

)

Reimplemented in CVD::V4L2BufferT< T >.

double CVD::V4L2Buffer_Base::frame_rate

(

)

[inline]

Reimplemented in CVD::V4L2BufferT< T >.

Definition at line 120 of file v4l2buffer.h.

V4L2FrameT<unsigned char>* CVD::V4L2Buffer_Base::get_frame

(

)

Reimplemented in CVD::V4L2BufferT< T >.

int CVD::V4L2Buffer_Base::operator=

(

V4L2Buffer_Base &

copyof

)

[private]

void CVD::V4L2Buffer_Base::put_frame

(

V4L2FrameT< unsigned char > *

f

)

Tell the buffer that you are finished with this frame. Overloaded version of VideoBuffer<T>::put_frame().

void CVD::V4L2Buffer_Base::put_frame

(

VideoFrame< unsigned char > *

f

)

Tell the buffer that you are finished with this frame. Overloaded version of VideoBuffer<T>::put_frame().

ImageRef CVD::V4L2Buffer_Base::size

(

)

[inline]

Reimplemented in CVD::V4L2BufferT< T >.

Definition at line 108 of file v4l2buffer.h.

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Member Data Documentation

std::string CVD::V4L2Buffer_Base::device [private]

Definition at line 126 of file v4l2buffer.h.

bool CVD::V4L2Buffer_Base::i_am_using_fields [private]

Definition at line 130 of file v4l2buffer.h.

int CVD::V4L2Buffer_Base::m_nVideoFileDesc [private]

Definition at line 136 of file v4l2buffer.h.

void** CVD::V4L2Buffer_Base::m_pvVideoBuffer [private]

Definition at line 135 of file v4l2buffer.h.

struct v4l2_buffer* CVD::V4L2Buffer_Base::m_sv4l2Buffer [private]

Definition at line 134 of file v4l2buffer.h.

V4L2BufferBlockMethod CVD::V4L2Buffer_Base::my_block_method [private]

Definition at line 133 of file v4l2buffer.h.

int CVD::V4L2Buffer_Base::my_dropped_frames [private]

Definition at line 127 of file v4l2buffer.h.

int CVD::V4L2Buffer_Base::my_fd [private]

Definition at line 139 of file v4l2buffer.h.

double CVD::V4L2Buffer_Base::my_frame_rate [private]

Definition at line 131 of file v4l2buffer.h.

ImageRef CVD::V4L2Buffer_Base::my_image_size [private]

Definition at line 132 of file v4l2buffer.h.

int CVD::V4L2Buffer_Base::my_prev_frame_no [private]

Definition at line 128 of file v4l2buffer.h.

int CVD::V4L2Buffer_Base::num_buffers [private]

Definition at line 129 of file v4l2buffer.h.

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The documentation for this class was generated from the following file:

• v4l2buffer.h