v4l2uvc.c File Reference

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

Include dependency graph for v4l2uvc.c:

Go to the source code of this file.

Defines
#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	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

---

Define Documentation

#define ARRAY_SIZE

(

a

)

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

Definition at line 32 of file v4l2uvc.c.

#define FOURCC_ARGS

(

c

)

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

Definition at line 34 of file v4l2uvc.c.

#define FOURCC_FORMAT   "%c%c%c%c"

Definition at line 33 of file v4l2uvc.c.

#define HEADERFRAME1   0xaf

---

Function Documentation

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

Definition at line 67 of file v4l2uvc.c.

int close_v4l2

(

struct vdIn *

vd

)

Definition at line 676 of file v4l2uvc.c.

int enum_controls

(

int

vd

)

Definition at line 178 of file v4l2uvc.c.

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

Definition at line 1122 of file v4l2uvc.c.

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

Definition at line 1041 of file v4l2uvc.c.

int enum_frame_sizes	(	int	dev,
		__u32	pixfmt
	)

Definition at line 1079 of file v4l2uvc.c.

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

Definition at line 61 of file v4l2uvc.c.

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

Definition at line 43 of file v4l2uvc.c.

static int init_v4l2

(

struct vdIn *

vd

)

[static]

Definition at line 346 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 104 of file v4l2uvc.c.

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

Definition at line 694 of file v4l2uvc.c.

int load_controls	(	int	vd,
		const char *	filename
	)

Definition at line 320 of file v4l2uvc.c.

int save_controls	(	int	vd,
		const char *	filename
	)

Definition at line 261 of file v4l2uvc.c.

int uvcGrab

(

struct vdIn *

vd

)

Definition at line 561 of file v4l2uvc.c.

int v4l2DownControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 779 of file v4l2uvc.c.

int v4l2GetControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 713 of file v4l2uvc.c.

int v4l2ResetControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 825 of file v4l2uvc.c.

int v4l2ResetPan

(

struct vdIn *

vd

)

Definition at line 844 of file v4l2uvc.c.

int v4l2ResetPanTilt

(

struct vdIn *

vd

)

Definition at line 884 of file v4l2uvc.c.

int v4l2ResetTilt

(

struct vdIn *

vd

)

Definition at line 864 of file v4l2uvc.c.

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

Definition at line 728 of file v4l2uvc.c.

int v4l2SetLightFrequencyFilter	(	struct vdIn *	vd,
		int	flt
	)

Definition at line 1024 of file v4l2uvc.c.

int v4l2ToggleControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 808 of file v4l2uvc.c.

int v4l2UpControl	(	struct vdIn *	vd,
		int	control
	)

Definition at line 750 of file v4l2uvc.c.

int v4L2UpDownPan	(	struct vdIn *	vd,
		short	inc
	)

Definition at line 905 of file v4l2uvc.c.

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

Definition at line 940 of file v4l2uvc.c.

int v4L2UpDownTilt	(	struct vdIn *	vd,
		short	inc
	)

Definition at line 923 of file v4l2uvc.c.

static int video_disable

(

struct vdIn *

vd

)

[static]

Definition at line 546 of file v4l2uvc.c.

static int video_enable

(

struct vdIn *

vd

)

[static]

Definition at line 532 of file v4l2uvc.c.

---

Variable Documentation

int debug = 0 [static]

Definition at line 37 of file v4l2uvc.c.