/* *	Video for Linux Two * *	Header file for v4l or V4L2 drivers and applications, for *	Linux kernels 2.2.x or 2.4.x. * *	Author: Bill Dirks <bdirks@pacbell.net> *		Justin Schoeman *		et al. */#ifndef __LINUX_VIDEODEV_H#define __LINUX_VIDEODEV_H#if (LINUX_VERSION_CODE >= 0x020300) && (LINUX_VERSION_CODE < 0x020400)#warning Due to the changes in the 2.3.x kernel series, this version of videodev.h \         may not work correctly for your kernel.#endif#include <linux/types.h>#include <linux/version.h>#ifdef __KERNEL__#include <linux/poll.h>#if (LINUX_VERSION_CODE >= 0x020300) || defined(CONFIG_FS_DEVFS)#include <linux/devfs_fs_kernel.h>#endif#endif#define V4L2_MAJOR_VERSION	0#define V4L2_MINOR_VERSION	20/* *	M I S C E L L A N E O U S *//*  Four-character-code (FOURCC) */#define v4l2_fourcc(a,b,c,d)\        (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))/*  Open flag for non-capturing opens on capture devices  */#define O_NONCAP	O_TRUNC#define O_NOIO		O_TRUNC/*  Timestamp data type, 64-bit signed integer, in nanoseconds  */#ifndef STAMP_T#define STAMP_Ttypedef __s64 stamp_t;#endif/* *	D R I V E R   C A P A B I L I T I E S */struct v4l2_capability{	char	name[32];	/* Descriptive, and unique */	int	type;		/* Device type, see below */	int	inputs;		/* Num video inputs */	int	outputs;	/* Num video outputs */	int	audios;		/* Num audio devices */	int	maxwidth;	int	maxheight;	int	minwidth;	int	minheight;	int	maxframerate;	__u32	flags;		/* Feature flags, see below */	__u32	reserved[4];};/* Values for 'type' field */#define V4L2_TYPE_CAPTURE	0	/* Is a video capture device */#define V4L2_TYPE_CODEC		1	/* Is a CODEC device */#define V4L2_TYPE_OUTPUT	2	/* Is a video output device */#define V4L2_TYPE_FX		3	/* Is a video effects device */#define V4L2_TYPE_VBI		4	/* Is a VBI capture device */#define V4L2_TYPE_VTR		5	/* Is a tape recorder controller */#define V4L2_TYPE_VTX		6	/* Is a teletext device */#define V4L2_TYPE_RADIO		7	/* Is a radio device */#define V4L2_TYPE_VBI_INPUT	4	/* Is a VBI capture device */#define V4L2_TYPE_VBI_OUTPUT	9	/* Is a VBI output device */#define V4L2_TYPE_PRIVATE	1000	/* Start of driver private types *//* Flags for 'flags' field */#define V4L2_FLAG_READ		0x00001 /* Can capture via read() call */#define V4L2_FLAG_WRITE		0x00002 /* Can accept data via write() */#define V4L2_FLAG_STREAMING	0x00004 /* Can capture streaming video */#define V4L2_FLAG_PREVIEW	0x00008 /* Can do automatic preview */#define V4L2_FLAG_SELECT	0x00010 /* Supports the select() call */#define V4L2_FLAG_TUNER		0x00020 /* Can tune */#define V4L2_FLAG_MONOCHROME	0x00040 /* Monochrome only */#define V4L2_FLAG_DATA_SERVICE	0x00080 /* Has a related data service dev. *//* *	V I D E O   I M A G E   F O R M A T */struct v4l2_pix_format{	__u32	width;	__u32	height;	__u32	depth;	__u32	pixelformat;	__u32	flags;	__u32	bytesperline;	/* only used when there are pad bytes */	__u32	sizeimage;	__u32	priv;		/* private data, depends on pixelformat */};/*           Pixel format    FOURCC                  depth  Description   */#define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R','G','B','1') /*  8  RGB-3-3-2     */#define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R','G','B','O') /* 16  RGB-5-5-5     */#define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R','G','B','P') /* 16  RGB-5-6-5     */#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R','G','B','Q') /* 16  RGB-5-5-5 BE  */#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R','G','B','R') /* 16  RGB-5-6-5 BE  */#define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B','G','R','3') /* 24  BGR-8-8-8     */#define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R','G','B','3') /* 24  RGB-8-8-8     */#define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B','G','R','4') /* 32  BGR-8-8-8-8   */#define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R','G','B','4') /* 32  RGB-8-8-8-8   */#define V4L2_PIX_FMT_GREY    v4l2_fourcc('G','R','E','Y') /*  8  Greyscale     */#define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y','V','U','9') /*  9  YVU 4:1:0     */#define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y','V','1','2') /* 12  YVU 4:2:0     */#define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y','U','Y','V') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_YUY2    v4l2_fourcc('Y','U','Y','2') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U','Y','V','Y') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y','V','Y','U') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V','Y','U','Y') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y','4','1','P') /* 12  YUV 4:1:1     */#define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y','U','V','9') /*  9  YUV 4:1:0     */#define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y','U','1','2') /* 12  YUV 4:2:0     */#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('P','4','2','2') /* 16  YUV422 planar */#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('P','4','1','1') /* 16  YUV411 planar */#define V4L2_PIX_FMT_NV12    v4l2_fourcc('N','V','1','2') /* 12  Y/UV 4:2:0    *//*  The following formats are not defined in the V4L2 specification */#define V4L2_PIX_FMT_YVU422P v4l2_fourcc('4','2','2','P') /* 16  YVU422 planar */#define V4L2_PIX_FMT_YVU411P v4l2_fourcc('4','1','1','P') /* 16  YVU411 planar */#define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y','Y','U','V') /* 16  YUV 4:2:2     */#define V4L2_PIX_FMT_HI240   v4l2_fourcc('H','I','2','4') /*  8  8-bit color   */#define V4L2_PIX_FMT_NV21    v4l2_fourcc('N','V','2','1') /* 12  Y/UV 4:2:0    *//*  Vendor-specific formats   */#define V4L2_PIX_FMT_WNVA    v4l2_fourcc('W','N','V','A') /* Winnov hw compres *//*  Flags */#define V4L2_FMT_FLAG_COMPRESSED	0x0001	/* Compressed format */#define V4L2_FMT_FLAG_BYTESPERLINE	0x0002	/* bytesperline field valid */#define V4L2_FMT_FLAG_NOT_INTERLACED	0x0000#define V4L2_FMT_FLAG_INTERLACED	0x0004	/* Image is interlaced */#define V4L2_FMT_FLAG_TOPFIELD		0x0008	/* is a top field only */#define V4L2_FMT_FLAG_BOTFIELD		0x0010	/* is a bottom field only */#define V4L2_FMT_FLAG_ODDFIELD		V4L2_FMT_FLAG_TOPFIELD#define V4L2_FMT_FLAG_EVENFIELD		V4L2_FMT_FLAG_BOTFIELD#define V4L2_FMT_FLAG_COMBINED		V4L2_FMT_FLAG_INTERLACED#define V4L2_FMT_FLAG_FIELD_field	0x001C#define V4L2_FMT_CS_field		0xF000	/* Color space field mask */#define V4L2_FMT_CS_601YUV		0x1000	/* ITU YCrCb color space */#define V4L2_FMT_FLAG_SWCONVERSION	0x0800	/* used only in format enum. *//*  SWCONVERSION indicates the format is not natively supported by the  *//*  driver and the driver uses software conversion to support it  *//* *	F O R M A T   E N U M E R A T I O N */struct v4l2_fmtdesc{	int	index;			/* Format number */	char	description[32];	/* Description string */	__u32	pixelformat;		/* Format fourcc */	__u32	flags;			/* Format flags */	__u32	depth;			/* Bits per pixel */	__u32	reserved[2];};struct v4l2_cvtdesc{	int	index;	struct	{		__u32	pixelformat;		__u32	flags;		__u32	depth;		__u32	reserved[2];	}	in, out;};struct v4l2_fxdesc{	int	index;	char 	name[32];	__u32	flags;	__u32	inputs;	__u32	controls;	__u32	reserved[2];};/* *	T I M E C O D E */struct v4l2_timecode{	__u8	frames;	__u8	seconds;	__u8	minutes;	__u8	hours;	__u8	userbits[4];	__u32	flags;	__u32	type;};/*  Type  */#define V4L2_TC_TYPE_24FPS		1#define V4L2_TC_TYPE_25FPS		2#define V4L2_TC_TYPE_30FPS		3#define V4L2_TC_TYPE_50FPS		4#define V4L2_TC_TYPE_60FPS		5/*  Flags  */#define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */#define V4L2_TC_FLAG_COLORFRAME		0x0002#define V4L2_TC_USERBITS_field		0x000C#define V4L2_TC_USERBITS_USERDEFINED	0x0000#define V4L2_TC_USERBITS_8BITCHARS	0x0008/* The above is based on SMPTE timecodes *//* *	C O M P R E S S I O N   P A R A M E T E R S */struct v4l2_compression{	int	quality;	int	keyframerate;	int	pframerate;	__u32	reserved[5];};/* *	M E M O R Y - M A P P I N G   B U F F E R S */struct v4l2_requestbuffers{	int	count;	__u32	type;	__u32	reserved[2];};struct v4l2_buffer{	int			index;	__u32			type;	__u32			offset;	__u32			length;	__u32			bytesused;	__u32			flags;	stamp_t			timestamp;	struct v4l2_timecode	timecode;	__u32			sequence;	__u32			reserved[3];};/*  Buffer type codes and flags for 'type' field */#define V4L2_BUF_TYPE_field		0x00001FFF  /* Type field mask  */#define V4L2_BUF_TYPE_CAPTURE		0x00000001#define V4L2_BUF_TYPE_CODECIN		0x00000002#define V4L2_BUF_TYPE_CODECOUT		0x00000003#define V4L2_BUF_TYPE_EFFECTSIN		0x00000004#define V4L2_BUF_TYPE_EFFECTSIN2	0x00000005#define V4L2_BUF_TYPE_EFFECTSOUT	0x00000006#define V4L2_BUF_TYPE_VIDEOOUT		0x00000007#define V4L2_BUF_TYPE_FXCONTROL		0x00000008#define V4L2_BUF_TYPE_VBI		0x00000009/*  Starting value of driver private buffer types  */#define V4L2_BUF_TYPE_PRIVATE		0x00001000#define V4L2_BUF_ATTR_DEVICEMEM	0x00010000  /* Buffer is on device (flag) *//*  Flags used only in VIDIOC_REQBUFS  */#define V4L2_BUF_REQ_field	0xF0000000#define V4L2_BUF_REQ_CONTIG	0x10000000  /* Map all buffers in one					       contiguous mmap(). This flag					       only used in VIDIOC_REQBUFS *//*  Flags for 'flags' field */#define V4L2_BUF_FLAG_MAPPED	0x0001  /* Buffer is mapped (flag) */#define V4L2_BUF_FLAG_QUEUED	0x0002	/* Buffer is queued for processing */#define V4L2_BUF_FLAG_DONE	0x0004	/* Buffer is ready */#define V4L2_BUF_FLAG_KEYFRAME	0x0008	/* Image is a keyframe (I-frame) */#define V4L2_BUF_FLAG_PFRAME	0x0010	/* Image is a P-frame */#define V4L2_BUF_FLAG_BFRAME	0x0020	/* Image is a B-frame */#define V4L2_BUF_FLAG_TOPFIELD	0x0040	/* Image is a top field only */#define V4L2_BUF_FLAG_BOTFIELD	0x0080	/* Image is a bottom field only */#define V4L2_BUF_FLAG_ODDFIELD	V4L2_BUF_FLAG_TOPFIELD#define V4L2_BUF_FLAG_EVENFIELD	V4L2_BUF_FLAG_BOTFIELD#define V4L2_BUF_FLAG_TIMECODE	0x0100	/* timecode field is valid *//* *	O V E R L A Y   P R E V I E W */struct v4l2_framebuffer{	__u32			capability;	__u32			flags;	void			*base[3];	struct v4l2_pix_format	fmt;};/*  Flags for the 'capability' field. Read only */#define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001#define V4L2_FBUF_CAP_CHROMAKEY		0x0002#define V4L2_FBUF_CAP_CLIPPING		0x0004#define V4L2_FBUF_CAP_SCALEUP		0x0008#define V4L2_FBUF_CAP_SCALEDOWN		0x0010#define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0020/*  Flags for the 'flags' field. */#define V4L2_FBUF_FLAG_PRIMARY		0x0001#define V4L2_FBUF_FLAG_OVERLAY		0x0002#define V4L2_FBUF_FLAG_CHROMAKEY	0x0004struct v4l2_clip{	int			x;	int			y;	int			width;	int			height;	struct v4l2_clip	*next;};struct v4l2_window{	int			x;	int			y;	int			width;	int			height;	__u32			chromakey;	struct v4l2_clip	*clips;	int			clipcount;	void			*bitmap;};/* *	D E V I C E   P E R F O R M A N C E */struct v4l2_performance{	int	frames;	int	framesdropped;	__u64	bytesin;	__u64	bytesout;	__u32	reserved[4];};/* *	C A P T U R E   P A R A M E T E R S */struct v4l2_captureparm{	__u32		capability;	/*  Supported modes */	__u32		capturemode;	/*  Current mode */	unsigned long	timeperframe;	/*  Time per frame in .1us units */	__u32		extendedmode;	/*  Driver-specific extensions */	__u32		reserved[4];};/*  Flags for 'capability' and 'capturemode' fields */#define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode *///#define V4L2_MODE_VFLIP		0x0002	/*  Flip image vertically *///#define V4L2_MODE_HFLIP		0x0004	/*  Flip image horizontally */#define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */struct v4l2_outputparm{	__u32		capability;	/*  Supported modes */	__u32		outputmode;	/*  Current mode */	unsigned long	timeperframe;	/*  Time per frame in .1us units */	__u32		extendedmode;	/*  Driver-specific extensions */	__u32		reserved[4];};/* *	I N P U T   I M A G E   C R O P P I N G */struct v4l2_cropcap{	__u32	capability;	int	min_x;	int	min_y;	int	max_x;	int	max_y;	int	default_left;	int	default_top;	int	default_right;	int	default_bottom;	__u32	reserved[2];};struct v4l2_crop{	int	left;	int	top;	int	right;	int	bottom;	__u32	reserved;};/* *	D I G I T A L   Z O O M */struct v4l2_zoomcap{	__u32	capability;	__u32	maxwidth;	__u32	maxheight;	__u32	minwidth;	__u32	minheight;	__u32	reserved[2];};/*  Flags for the capability field  */#define V4L2_ZOOM_NONCAP		0x0001#define V4L2_ZOOM_WHILESTREAMING	0x0002struct v4l2_zoom{	__u32	x;	__u32	y;	__u32	width;	__u32	height;	__u32	reserved;};/* *      A N A L O G   V I D E O   S T A N D A R D */struct v4l2_standard{	__u8		name[24];	struct {		__u32	numerator;		__u32	denominator;	/* >= 1 */	} framerate;			/* Frames, not fields */	__u32		framelines;	__u32		reserved1;	__u32		colorstandard;	union {						struct {			__u32		colorsubcarrier; /* Hz */		} 		pal;		struct {								__u32		colorsubcarrier; /* Hz */		} 		ntsc;		struct {			__u32		f0b;	/* Hz (blue) */			__u32		f0r;	/* Hz (red)  */		} 		secam;		__u8		reserved[12];	} colorstandard_data;	__u32		transmission;	/* Bit field. Must be zero for					   non-modulators/demodulators. */	__u32		reserved2;	/* Must be set to zero */};/*  Values for the 'colorstandard' field  */#define V4L2_COLOR_STD_PAL		1#define V4L2_COLOR_STD_NTSC		2#define V4L2_COLOR_STD_SECAM		3/*  Values for the color subcarrier fields  */#define V4L2_COLOR_SUBC_PAL	4433619		/* PAL BGHI, NTSC-44 */