text: /* This is the header file for video4linux ABI taken from kernel
   * source 2.4.21.  There was no copyright notice in this file, but the
   * copyright for the kernel (and hence this file) is GNU GPL version 2
   * only.  This file is included here as COPYING, and applies to
   * frameworks itself as well as this file.  See
   * http://bytesex.org/v4l/ for video4linux information. -pat */
  
  #ifndef __LINUX_VIDEODEV_H
  #define __LINUX_VIDEODEV_H
  
  #include <sys/types.h>
  #include <stdint.h>
  
  typedef uint8_t   __u8;
  typedef int8_t    __s8;
  typedef uint16_t  __u16;
  typedef int16_t   __s16;
  typedef uint32_t  __u32;
  typedef int32_t   __s32;
  
  #define VID_TYPE_CAPTURE	1	/* Can capture */
  #define VID_TYPE_TUNER		2	/* Can tune */
  #define VID_TYPE_TELETEXT	4	/* Does teletext */
  #define VID_TYPE_OVERLAY	8	/* Overlay onto frame buffer */
  #define VID_TYPE_CHROMAKEY	16	/* Overlay by chromakey */
  #define VID_TYPE_CLIPPING	32	/* Can clip */
  #define VID_TYPE_FRAMERAM	64	/* Uses the frame buffer memory */
  #define VID_TYPE_SCALES		128	/* Scalable */
  #define VID_TYPE_MONOCHROME	256	/* Monochrome only */
  #define VID_TYPE_SUBCAPTURE	512	/* Can capture subareas of the image */
  #define VID_TYPE_MPEG_DECODER	1024	/* Can decode MPEG streams */
  #define VID_TYPE_MPEG_ENCODER	2048	/* Can encode MPEG streams */
  #define VID_TYPE_MJPEG_DECODER	4096	/* Can decode MJPEG streams */
  #define VID_TYPE_MJPEG_ENCODER	8192	/* Can encode MJPEG streams */
  
  struct video_capability
  {
  	char name[32];
  	int type;
  	int channels;	/* Num channels */
  	int audios;	/* Num audio devices */
  	int maxwidth;	/* Supported width */
  	int maxheight;	/* And height */
  	int minwidth;	/* Supported width */
  	int minheight;	/* And height */
  };
  
  struct video_channel
  {
  	int channel;
  	char name[32];
  	int tuners;
  	__u32  flags;
  #define VIDEO_VC_TUNER		1	/* Channel has a tuner */
  #define VIDEO_VC_AUDIO		2	/* Channel has audio */
  	__u16  type;
  #define VIDEO_TYPE_TV		1
  #define VIDEO_TYPE_CAMERA	2	
  	__u16 norm;			/* Norm set by channel */
  };
  
  struct video_tuner
  {
  	int tuner;
  	char name[32];
  	unsigned long rangelow, rangehigh;	/* Tuner range */
  	__u32 flags;
  #define VIDEO_TUNER_PAL		1
  #define VIDEO_TUNER_NTSC	2
  #define VIDEO_TUNER_SECAM	4
  #define VIDEO_TUNER_LOW		8	/* Uses KHz not MHz */
  #define VIDEO_TUNER_NORM	16	/* Tuner can set norm */
  #define VIDEO_TUNER_STEREO_ON	128	/* Tuner is seeing stereo */
  #define VIDEO_TUNER_RDS_ON      256     /* Tuner is seeing an RDS datastream */
  #define VIDEO_TUNER_MBS_ON      512     /* Tuner is seeing an MBS datastream */
  	__u16 mode;			/* PAL/NTSC/SECAM/OTHER */
  #define VIDEO_MODE_PAL		0
  #define VIDEO_MODE_NTSC		1
  #define VIDEO_MODE_SECAM	2
  #define VIDEO_MODE_AUTO		3
  	__u16 signal;			/* Signal strength 16bit scale */
  };
  
  struct video_picture
  {
  	__u16	brightness;
  	__u16	hue;
  	__u16	colour;
  	__u16	contrast;
  	__u16	whiteness;	/* Black and white only */
  	__u16	depth;		/* Capture depth */
  	__u16   palette;	/* Palette in use */
  #define VIDEO_PALETTE_GREY	1	/* Linear greyscale */
  #define VIDEO_PALETTE_HI240	2	/* High 240 cube (BT848) */
  #define VIDEO_PALETTE_RGB565	3	/* 565 16 bit RGB */
  #define VIDEO_PALETTE_RGB24	4	/* 24bit RGB */
  #define VIDEO_PALETTE_RGB32	5	/* 32bit RGB */	
  #define VIDEO_PALETTE_RGB555	6	/* 555 15bit RGB */
  #define VIDEO_PALETTE_YUV422	7	/* YUV422 capture */
  #define VIDEO_PALETTE_YUYV	8
  #define VIDEO_PALETTE_UYVY	9	/* The great thing about standards is ... */
  #define VIDEO_PALETTE_YUV420	10
  #define VIDEO_PALETTE_YUV411	11	/* YUV411 capture */
  #define VIDEO_PALETTE_RAW	12	/* RAW capture (BT848) */
  #define VIDEO_PALETTE_YUV422P	13	/* YUV 4:2:2 Planar */
  #define VIDEO_PALETTE_YUV411P	14	/* YUV 4:1:1 Planar */
  #define VIDEO_PALETTE_YUV420P	15	/* YUV 4:2:0 Planar */
  #define VIDEO_PALETTE_YUV410P	16	/* YUV 4:1:0 Planar */
  #define VIDEO_PALETTE_PLANAR	13	/* start of planar entries */
  #define VIDEO_PALETTE_COMPONENT 7	/* start of component entries */
  };
  
  struct video_audio
  {
  	int	audio;		/* Audio channel */
  	__u16	volume;		/* If settable */
  	__u16	bass, treble;
  	__u32	flags;
  #define VIDEO_AUDIO_MUTE	1
  #define VIDEO_AUDIO_MUTABLE	2
  #define VIDEO_AUDIO_VOLUME	4
  #define VIDEO_AUDIO_BASS	8
  #define VIDEO_AUDIO_TREBLE	16	
  #define VIDEO_AUDIO_BALANCE	32
  	char    name[16];
  #define VIDEO_SOUND_MONO	1
  #define VIDEO_SOUND_STEREO	2
  #define VIDEO_SOUND_LANG1	4
  #define VIDEO_SOUND_LANG2	8
          __u16   mode;
          __u16	balance;	/* Stereo balance */
          __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	/* ViCam, 3Com Homeconnect */
  #define VID_HARDWARE_SF16FMR2	35
  
  #endif /* __LINUX_VIDEODEV_H */
  