v4l2Camera Class Reference

Video4Linux2 (V4L2) camera capture streaming. More...

#include <v4l2Camera.h>

Public Member Functions
	~v4l2Camera ()
	Destructor. More...
bool	Open ()
	Start streaming. More...
bool	Close ()
	Stop streaming. More...
void *	Capture (size_t timeout=0)
	Return the next image. More...
uint32_t	GetWidth () const
	Get width, in pixels, of camera image. More...
uint32_t	GetHeight () const
	Retrieve height, in pixels, of camera image. More...
uint32_t	GetPitch () const
	Return the size in bytes of one line of the image. More...
uint32_t	GetPixelDepth () const
	Return the bit depth per pixel. More...

Static Public Member Functions
static v4l2Camera *	Create (const char *device_path)
	Create V4L2 interface. More...

Detailed Description

Video4Linux2 (V4L2) camera capture streaming.

Note

gstCamera, which convieniently handles both V4L2 and MIPI CSI cameras, is used mostly in lieu of v4l2Camera. v4l2Camera is provided in the event that you would rather interface with V4L2 directly, rather than go through GStreamer.

Constructor & Destructor Documentation

~v4l2Camera()

v4l2Camera::~v4l2Camera

(

)

Destructor.

Member Function Documentation

Capture()

void* v4l2Camera::Capture

(

size_t

timeout = 0

)

Return the next image.

Close()

bool v4l2Camera::Close

(

)

Stop streaming.

Create()

static v4l2Camera* v4l2Camera::Create ( const char *  device_path )

static

Create V4L2 interface.

Parameters

path	Filename of the video device (e.g. /dev/video0)

GetHeight()

uint32_t v4l2Camera::GetHeight ( ) const

inline

Retrieve height, in pixels, of camera image.

GetPitch()

uint32_t v4l2Camera::GetPitch ( ) const

inline

Return the size in bytes of one line of the image.

GetPixelDepth()

uint32_t v4l2Camera::GetPixelDepth ( ) const

inline

Return the bit depth per pixel.

GetWidth()

uint32_t v4l2Camera::GetWidth ( ) const

inline

Get width, in pixels, of camera image.

Open()

bool v4l2Camera::Open

(

)

Start streaming.

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

• jetson-utils/v4l2Camera.h