v4l2uvc.c File Reference

#include <stdlib.h>
#include <math.h>
#include <float.h>
#include <libv4l2.h>
#include <SDL.h>
#include "luvcview/v4l2uvc.h"

Include dependency graph for v4l2uvc.c:

Go to the source code of this file.

Macros
#define	ARRAY_SIZE(a)   (sizeof(a) / sizeof((a)[0]))
#define	FOURCC_ARGS(c)   (c) & 0xFF, ((c) >> 8) & 0xFF, ((c) >> 16) & 0xFF, ((c) >> 24) & 0xFF
#define	FOURCC_FORMAT   "%c%c%c%c"
#define	HEADERFRAME1   0xaf

Functions
int	check_videoIn (struct vdIn *vd, char *device)
int	close_v4l2 (struct vdIn *vd)
int	enum_controls (int vd)
int	enum_frame_formats (int dev, unsigned int *supported_formats, unsigned int max_formats)
int	enum_frame_intervals (int dev, __u32 pixfmt, __u32 width, __u32 height)
int	enum_frame_sizes (int dev, __u32 pixfmt)
static void	float_to_fraction (float f, int *num, int *den)
static int	float_to_fraction_recursive (double f, double p, int *num, int *den)
static int	init_v4l2 (struct vdIn *vd)
int	init_videoIn (struct vdIn *vd, char *device, int width, int height, float fps, int format, int grabmethod, char *avifilename)
static int	isv4l2Control (struct vdIn *vd, int control, struct v4l2_queryctrl *queryctrl)
int	jpeg_decode (unsigned char **pic, unsigned char *buf, int *width, int *height)
int	load_controls (int vd, const char *filename)
int	save_controls (int vd, const char *filename)
int	uvcGrab (struct vdIn *vd)
int	v4l2DownControl (struct vdIn *vd, int control)
int	v4l2GetControl (struct vdIn *vd, int control)
int	v4l2ResetControl (struct vdIn *vd, int control)
int	v4l2ResetPan (struct vdIn *vd)
int	v4l2ResetPanTilt (struct vdIn *vd)
int	v4l2ResetTilt (struct vdIn *vd)
int	v4l2SetControl (struct vdIn *vd, int control, int value)
int	v4l2SetLightFrequencyFilter (struct vdIn *vd, int flt)
int	v4l2ToggleControl (struct vdIn *vd, int control)
int	v4l2UpControl (struct vdIn *vd, int control)
int	v4L2UpDownPan (struct vdIn *vd, short inc)
int	v4L2UpDownPanTilt (struct vdIn *vd, short inc_p, short inc_t)
int	v4L2UpDownTilt (struct vdIn *vd, short inc)
static int	video_disable (struct vdIn *vd)
static int	video_enable (struct vdIn *vd)

Variables
static int	debug = 0

Macro Definition Documentation

#define ARRAY_SIZE

(

a

)

(sizeof(a) / sizeof((a)[0]))

Definition at line 33 of file v4l2uvc.c.

#define FOURCC_ARGS

(

c

)

(c) & 0xFF, ((c) >> 8) & 0xFF, ((c) >> 16) & 0xFF, ((c) >> 24) & 0xFF

Definition at line 35 of file v4l2uvc.c.

#define FOURCC_FORMAT   "%c%c%c%c"

Definition at line 34 of file v4l2uvc.c.

#define HEADERFRAME1   0xaf

Function Documentation

int check_videoIn	(	struct vdIn *	vd,
		char *	device
	)

Definition at line 68 of file v4l2uvc.c.

int close_v4l2

(

struct vdIn *

vd

)

Definition at line 677 of file v4l2uvc.c.

int enum_controls

(

int

vd

)

Definition at line 179 of file v4l2uvc.c.

int enum_frame_formats	(	int	dev,
		unsigned int *	supported_formats,
		unsigned int	max_formats
	)

Definition at line 1123 of file v4l2uvc.c.

int enum_frame_intervals	(	int	dev,
		__u32	pixfmt,
		__u32	width,
		__u32	height
	)

Definition at line 1042 of file v4l2uvc.c.

int enum_frame_sizes	(	int	dev,
		__u32	pixfmt
	)

Definition at line 1080 of file v4l2uvc.c.

static void float_to_fraction ( float  f, int *  num, int *  den  )

static

Definition at line 62 of file v4l2uvc.c.

static int float_to_fraction_recursive ( double  f, double  p, int *  num, int *  den  )

static

Definition at line 44 of file v4l2uvc.c.

static int init_v4l2 ( struct vdIn *  vd )

static

Definition at line 347 of file v4l2uvc.c.

int init_videoIn	(	struct vdIn *	vd,
		char *	device,
		int	width,
		int	height,
		float	fps,
		int	format,
		int	grabmethod,
		char *	avifilename
	)

Definition at line 105 of file v4l2uvc.c.

static int isv4l2Control ( struct vdIn *  vd, int  control, struct v4l2_queryctrl *  queryctrl  )

static

Definition at line 695 of file v4l2uvc.c.

int jpeg_decode	(	unsigned char **	pic,
		unsigned char *	buf,
		int *	width,
		int *	height
	)

Definition at line 282 of file utils.c.

int load_controls	(	int	vd,
		const char *	filename
	)

Definition at line 321 of file v4l2uvc.c.

int save_controls	(	int	vd,
		const char *	filename
	)

Definition at line 262 of file v4l2uvc.c.

int uvcGrab

(

struct vdIn *

vd

)

Definition at line 562 of file v4l2uvc.c.

int v4l2DownControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 780 of file v4l2uvc.c.

int v4l2GetControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 714 of file v4l2uvc.c.

int v4l2ResetControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 826 of file v4l2uvc.c.

int v4l2ResetPan

(

struct vdIn *

vd

)

Definition at line 845 of file v4l2uvc.c.

int v4l2ResetPanTilt

(

struct vdIn *

vd

)

Definition at line 885 of file v4l2uvc.c.

int v4l2ResetTilt

(

struct vdIn *

vd

)

Definition at line 865 of file v4l2uvc.c.

int v4l2SetControl	(	struct vdIn *	vd,
		int	control,
		int	value
	)

Definition at line 729 of file v4l2uvc.c.

int v4l2SetLightFrequencyFilter	(	struct vdIn *	vd,
		int	flt
	)

Definition at line 1025 of file v4l2uvc.c.

int v4l2ToggleControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 809 of file v4l2uvc.c.

int v4l2UpControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 751 of file v4l2uvc.c.

int v4L2UpDownPan	(	struct vdIn *	vd,
		short	inc
	)

Definition at line 906 of file v4l2uvc.c.

int v4L2UpDownPanTilt	(	struct vdIn *	vd,
		short	inc_p,
		short	inc_t
	)

Definition at line 941 of file v4l2uvc.c.

int v4L2UpDownTilt	(	struct vdIn *	vd,
		short	inc
	)

Definition at line 924 of file v4l2uvc.c.

static int video_disable ( struct vdIn *  vd )

static

Definition at line 547 of file v4l2uvc.c.

static int video_enable ( struct vdIn *  vd )

static

Definition at line 533 of file v4l2uvc.c.

Variable Documentation

int debug = 0

static

Definition at line 38 of file v4l2uvc.c.