#include <v4l.h>

Inheritance diagram for pangolin::V4lVideo:

Public Member Functions
bool	GrabNewest (unsigned char *image, bool wait=true)
bool	GrabNext (unsigned char *image, bool wait=true)
unsigned	Height () const
std::string	PixFormat () const
size_t	SizeBytes () const
void	Start ()
	Implement VideoSource::Start()
void	Stop ()
	Implement VideoSource::Stop()
	V4lVideo (const char *dev_name, io_method io=IO_METHOD_MMAP)
unsigned	Width () const
	~V4lVideo ()
Protected Member Functions
void	close_device ()
void	init_device (const char *dev_name, unsigned iwidth, unsigned iheight, unsigned ifps, unsigned v4l_format=V4L2_PIX_FMT_YUYV, v4l2_field field=V4L2_FIELD_INTERLACED)
void	init_mmap (const char *dev_name)
void	init_read (unsigned int buffer_size)
void	init_userp (const char *dev_name, unsigned int buffer_size)
void	Mainloop ()
void	open_device (const char *dev_name)
int	ReadFrame (unsigned char *image)
void	uninit_device ()
Protected Attributes
buffer *	buffers
int	fd
float	fps
unsigned	height
size_t	image_size
io_method	io
unsigned int	n_buffers
bool	running
unsigned	width

Detailed Description

Definition at line 53 of file v4l.h.

Constructor & Destructor Documentation

pangolin::V4lVideo::V4lVideo	(	const char *	dev_name,
		io_method	io = `IO_METHOD_MMAP`
	)

Definition at line 62 of file v4l.cpp.

pangolin::V4lVideo::~V4lVideo ( )

Definition at line 70 of file v4l.cpp.

Member Function Documentation

void pangolin::V4lVideo::close_device ( ) [protected]

Definition at line 636 of file v4l.cpp.

bool pangolin::V4lVideo::GrabNewest	(	unsigned char *	image,
		bool	wait = `true`
	)		`[virtual]`

Copy the newest frame from the camera to image discarding all older frames. Optionally wait for a frame if one isn't ready Returns true iff image was copied

Implements pangolin::VideoInterface.

Definition at line 140 of file v4l.cpp.

bool pangolin::V4lVideo::GrabNext	(	unsigned char *	image,
		bool	wait = `true`
	)		`[virtual]`

Copy the next frame from the camera to image. Optionally wait for a frame if one isn't ready Returns true iff image was copied

Implements pangolin::VideoInterface.

Definition at line 102 of file v4l.cpp.

unsigned pangolin::V4lVideo::Height ( ) const [virtual]

Implements pangolin::VideoInterface.

Definition at line 86 of file v4l.cpp.

void pangolin::V4lVideo::init_device	(	const char *	dev_name,
		unsigned	iwidth,
		unsigned	iheight,
		unsigned	ifps,
		unsigned	v4l_format = `V4L2_PIX_FMT_YUYV`,
		v4l2_field	field = `V4L2_FIELD_INTERLACED`
	)		`[protected]`