videodev.h

该代码是天敏电视卡天敏大师4的核心芯片在linux下面的驱动

        __u16	step;		/* Step actual volume uses */
};

struct video_clip
{
	__s32	x,y;
	__s32	width, height;
	struct	video_clip *next;	/* For user use/driver use only */
};

struct video_window
{
	__u32	x,y;			/* Position of window */
	__u32	width,height;		/* Its size */
	__u32	chromakey;
	__u32	flags;
	struct	video_clip *clips;	/* Set only */
	int	clipcount;
#define VIDEO_WINDOW_INTERLACE	1
#define VIDEO_WINDOW_CHROMAKEY	16	/* Overlay by chromakey */
#define VIDEO_CLIP_BITMAP	-1
/* bitmap is 1024x625, a '1' bit represents a clipped pixel */
#define VIDEO_CLIPMAP_SIZE	(128 * 625)
};

struct video_capture
{
	__u32 	x,y;			/* Offsets into image */
	__u32	width, height;		/* Area to capture */
	__u16	decimation;		/* Decimation divider */
	__u16	flags;			/* Flags for capture */
#define VIDEO_CAPTURE_ODD		0	/* Temporal */
#define VIDEO_CAPTURE_EVEN		1
};

struct video_buffer
{
	void	*base;
	int	height,width;
	int	depth;
	int	bytesperline;
};

struct video_mmap
{
	unsigned	int frame;		/* Frame (0 - n) for double buffer */
	int		height,width;
	unsigned	int format;		/* should be VIDEO_PALETTE_* */
};

struct video_key
{
	__u8	key[8];
	__u32	flags;
};


#define VIDEO_MAX_FRAME		32

struct video_mbuf
{
	int	size;		/* Total memory to map */
	int	frames;		/* Frames */
	int	offsets[VIDEO_MAX_FRAME];
};
	

#define 	VIDEO_NO_UNIT	(-1)

	
struct video_unit
{
	int 	video;		/* Video minor */
	int	vbi;		/* VBI minor */
	int	radio;		/* Radio minor */
	int	audio;		/* Audio minor */
	int	teletext;	/* Teletext minor */
};

struct vbi_format {
	__u32	sampling_rate;	/* in Hz */
	__u32	samples_per_line;
	__u32	sample_format;	/* VIDEO_PALETTE_RAW only (1 byte) */
	__s32	start[2];	/* starting line for each frame */
	__u32	count[2];	/* count of lines for each frame */
	__u32	flags;
#define	VBI_UNSYNC	1	/* can distingues between top/bottom field */
#define	VBI_INTERLACED	2	/* lines are interlaced */
};

/* video_info is biased towards hardware mpeg encode/decode */
/* but it could apply generically to any hardware compressor/decompressor */
struct video_info
{
	__u32	frame_count;	/* frames output since decode/encode began */
	__u32	h_size;		/* current unscaled horizontal size */
	__u32	v_size;		/* current unscaled veritcal size */
	__u32	smpte_timecode;	/* current SMPTE timecode (for current GOP) */
	__u32	picture_type;	/* current picture type */
	__u32	temporal_reference;	/* current temporal reference */
	__u8	user_data[256];	/* user data last found in compressed stream */
	/* user_data[0] contains user data flags, user_data[1] has count */
};

/* generic structure for setting playback modes */
struct video_play_mode
{
	int	mode;
	int	p1;
	int	p2;
};

/* for loading microcode / fpga programming */
struct video_code
{
	char	loadwhat[16];	/* name or tag of file being passed */
	int	datasize;
	__u8	*data;
};

#define VIDIOCGCAP		_IOR('v',1,struct video_capability)	/* Get capabilities */
#define VIDIOCGCHAN		_IOWR('v',2,struct video_channel)	/* Get channel info (sources) */
#define VIDIOCSCHAN		_IOW('v',3,struct video_channel)	/* Set channel 	*/
#define VIDIOCGTUNER		_IOWR('v',4,struct video_tuner)		/* Get tuner abilities */
#define VIDIOCSTUNER		_IOW('v',5,struct video_tuner)		/* Tune the tuner for the current channel */
#define VIDIOCGPICT		_IOR('v',6,struct video_picture)	/* Get picture properties */
#define VIDIOCSPICT		_IOW('v',7,struct video_picture)	/* Set picture properties */
#define VIDIOCCAPTURE		_IOW('v',8,int)				/* Start, end capture */
#define VIDIOCGWIN		_IOR('v',9, struct video_window)	/* Get the video overlay window */
#define VIDIOCSWIN		_IOW('v',10, struct video_window)	/* Set the video overlay window - passes clip list for hardware smarts , chromakey etc */
#define VIDIOCGFBUF		_IOR('v',11, struct video_buffer)	/* Get frame buffer */
#define VIDIOCSFBUF		_IOW('v',12, struct video_buffer)	/* Set frame buffer - root only */
#define VIDIOCKEY		_IOR('v',13, struct video_key)		/* Video key event - to dev 255 is to all - cuts capture on all DMA windows with this key (0xFFFFFFFF == all) */
#define VIDIOCGFREQ		_IOR('v',14, unsigned long)		/* Set tuner */
#define VIDIOCSFREQ		_IOW('v',15, unsigned long)		/* Set tuner */
#define VIDIOCGAUDIO		_IOR('v',16, struct video_audio)	/* Get audio info */
#define VIDIOCSAUDIO		_IOW('v',17, struct video_audio)	/* Audio source, mute etc */
#define VIDIOCSYNC		_IOW('v',18, int)			/* Sync with mmap grabbing */
#define VIDIOCMCAPTURE		_IOW('v',19, struct video_mmap)		/* Grab frames */
#define VIDIOCGMBUF		_IOR('v',20, struct video_mbuf)		/* Memory map buffer info */
#define VIDIOCGUNIT		_IOR('v',21, struct video_unit)		/* Get attached units */
#define VIDIOCGCAPTURE		_IOR('v',22, struct video_capture)	/* Get subcapture */
#define VIDIOCSCAPTURE		_IOW('v',23, struct video_capture)	/* Set subcapture */
#define VIDIOCSPLAYMODE		_IOW('v',24, struct video_play_mode)	/* Set output video mode/feature */
#define VIDIOCSWRITEMODE	_IOW('v',25, int)			/* Set write mode */
#define VIDIOCGPLAYINFO		_IOR('v',26, struct video_info)		/* Get current playback info from hardware */
#define VIDIOCSMICROCODE	_IOW('v',27, struct video_code)		/* Load microcode into hardware */
#define	VIDIOCGVBIFMT		_IOR('v',28, struct vbi_format)		/* Get VBI information */
#define	VIDIOCSVBIFMT		_IOW('v',29, struct vbi_format)		/* Set VBI information */


#define BASE_VIDIOCPRIVATE	192		/* 192-255 are private */

/* VIDIOCSWRITEMODE */
#define VID_WRITE_MPEG_AUD		0
#define VID_WRITE_MPEG_VID		1
#define VID_WRITE_OSD			2
#define VID_WRITE_TTX			3
#define VID_WRITE_CC			4
#define VID_WRITE_MJPEG			5

/* VIDIOCSPLAYMODE */
#define VID_PLAY_VID_OUT_MODE		0
	/* p1: = VIDEO_MODE_PAL, VIDEO_MODE_NTSC, etc ... */
#define VID_PLAY_GENLOCK		1
	/* p1: 0 = OFF, 1 = ON */
	/* p2: GENLOCK FINE DELAY value */ 
#define VID_PLAY_NORMAL			2
#define VID_PLAY_PAUSE			3
#define VID_PLAY_SINGLE_FRAME		4
#define VID_PLAY_FAST_FORWARD		5
#define VID_PLAY_SLOW_MOTION		6
#define VID_PLAY_IMMEDIATE_NORMAL	7
#define VID_PLAY_SWITCH_CHANNELS	8
#define VID_PLAY_FREEZE_FRAME		9
#define VID_PLAY_STILL_MODE		10
#define VID_PLAY_MASTER_MODE		11
	/* p1: see below */
#define		VID_PLAY_MASTER_NONE	1
#define		VID_PLAY_MASTER_VIDEO	2
#define		VID_PLAY_MASTER_AUDIO	3
#define VID_PLAY_ACTIVE_SCANLINES	12
	/* p1 = first active; p2 = last active */
#define VID_PLAY_RESET			13
#define VID_PLAY_END_MARK		14



#define VID_HARDWARE_BT848	1
#define VID_HARDWARE_QCAM_BW	2
#define VID_HARDWARE_PMS	3
#define VID_HARDWARE_QCAM_C	4
#define VID_HARDWARE_PSEUDO	5
#define VID_HARDWARE_SAA5249	6
#define VID_HARDWARE_AZTECH	7
#define VID_HARDWARE_SF16MI	8
#define VID_HARDWARE_RTRACK	9
#define VID_HARDWARE_ZOLTRIX	10
#define VID_HARDWARE_SAA7146    11
#define VID_HARDWARE_VIDEUM	12	/* Reserved for Winnov videum */
#define VID_HARDWARE_RTRACK2	13
#define VID_HARDWARE_PERMEDIA2	14	/* Reserved for Permedia2 */
#define VID_HARDWARE_RIVA128	15	/* Reserved for RIVA 128 */
#define VID_HARDWARE_PLANB	16	/* PowerMac motherboard video-in */
#define VID_HARDWARE_BROADWAY	17	/* Broadway project */
#define VID_HARDWARE_GEMTEK	18
#define VID_HARDWARE_TYPHOON	19
#define VID_HARDWARE_VINO	20	/* SGI Indy Vino */
#define VID_HARDWARE_CADET	21	/* Cadet radio */
#define VID_HARDWARE_TRUST	22	/* Trust FM Radio */
#define VID_HARDWARE_TERRATEC	23	/* TerraTec ActiveRadio */
#define VID_HARDWARE_CPIA	24
#define VID_HARDWARE_ZR36120	25	/* Zoran ZR36120/ZR36125 */
#define VID_HARDWARE_ZR36067	26	/* Zoran ZR36067/36060 */
#define VID_HARDWARE_OV511	27	
#define VID_HARDWARE_ZR356700	28	/* Zoran 36700 series */
#define VID_HARDWARE_W9966	29
#define VID_HARDWARE_SE401	30	/* SE401 USB webcams */
#define VID_HARDWARE_PWC	31	/* Philips webcams */
#define VID_HARDWARE_MEYE	32	/* Sony Vaio MotionEye cameras */
#define VID_HARDWARE_CPIA2	33
#define VID_HARDWARE_VICAM      34
#define VID_HARDWARE_SF16FMR2	35
#define VID_HARDWARE_W9968CF    36
#define VID_HARDWARE_SAA7114H   37
#endif /* __LINUX_VIDEODEV_H */

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */