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videodev2.h

/*
 *  Video for Linux Two header file
 *
 *  Copyright (C) 1999-2007 the contributors
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  Alternatively you can redistribute this file under the terms of the
 *  BSD license as stated below:
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *  3. The names of its contributors may not be used to endorse or promote
 *     products derived from this software without specific prior written
 *     permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *    Header file for v4l or V4L2 drivers and applications
 * with public API.
 * All kernel-specific stuff were moved to media/v4l2-dev.h, so
 * no #if __KERNEL tests are allowed here
 *
 *    See http://linuxtv.org for more info
 *
 *    Author: Bill Dirks <bill@thedirks.org>
 *          Justin Schoeman
 *              Hans Verkuil <hverkuil@xs4all.nl>
 *          et al.
 */
#ifndef __LINUX_VIDEODEV2_H
#define __LINUX_VIDEODEV2_H
#ifdef __KERNEL__
#include <linux/time.h>     /* need struct timeval */
#include <linux/compiler.h> /* need __user */
#else
#define __user
#include <sys/time.h>
#endif
#include <linux/types.h>

/*
 * Common stuff for both V4L1 and V4L2
 * Moved from videodev.h
 */
#define VIDEO_MAX_FRAME               32

#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 */

/*
 *    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))

/*
 *    E N U M S
 */
enum v4l2_field {
      V4L2_FIELD_ANY           = 0, /* driver can choose from none,
                               top, bottom, interlaced
                               depending on whatever it thinks
                               is approximate ... */
      V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
      V4L2_FIELD_TOP           = 2, /* top field only */
      V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
      V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
      V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
                               buffer, top-bottom order */
      V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
      V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
                               separate buffers */
      V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
                               first and the top field is
                               transmitted first */
      V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
                               first and the bottom field is
                               transmitted first */
};
#define V4L2_FIELD_HAS_TOP(field)   \
      ((field) == V4L2_FIELD_TOP    ||\
       (field) == V4L2_FIELD_INTERLACED ||\
       (field) == V4L2_FIELD_INTERLACED_TB ||\
       (field) == V4L2_FIELD_INTERLACED_BT ||\
       (field) == V4L2_FIELD_SEQ_TB ||\
       (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTTOM(field)      \
      ((field) == V4L2_FIELD_BOTTOM       ||\
       (field) == V4L2_FIELD_INTERLACED ||\
       (field) == V4L2_FIELD_INTERLACED_TB ||\
       (field) == V4L2_FIELD_INTERLACED_BT ||\
       (field) == V4L2_FIELD_SEQ_TB ||\
       (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTH(field)  \
      ((field) == V4L2_FIELD_INTERLACED ||\
       (field) == V4L2_FIELD_INTERLACED_TB ||\
       (field) == V4L2_FIELD_INTERLACED_BT ||\
       (field) == V4L2_FIELD_SEQ_TB ||\
       (field) == V4L2_FIELD_SEQ_BT)

enum v4l2_buf_type {
      V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
      V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
      V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
      V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
      V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
      V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
      V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
#if 1
      /* Experimental */
      V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
#endif
      V4L2_BUF_TYPE_PRIVATE              = 0x80,
};

enum v4l2_ctrl_type {
      V4L2_CTRL_TYPE_INTEGER       = 1,
      V4L2_CTRL_TYPE_BOOLEAN       = 2,
      V4L2_CTRL_TYPE_MENU          = 3,
      V4L2_CTRL_TYPE_BUTTON        = 4,
      V4L2_CTRL_TYPE_INTEGER64     = 5,
      V4L2_CTRL_TYPE_CTRL_CLASS    = 6,
};

enum v4l2_tuner_type {
      V4L2_TUNER_RADIO       = 1,
      V4L2_TUNER_ANALOG_TV         = 2,
      V4L2_TUNER_DIGITAL_TV        = 3,
};

enum v4l2_memory {
      V4L2_MEMORY_MMAP             = 1,
      V4L2_MEMORY_USERPTR          = 2,
      V4L2_MEMORY_OVERLAY          = 3,
};

/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
      /* ITU-R 601 -- broadcast NTSC/PAL */
      V4L2_COLORSPACE_SMPTE170M     = 1,

      /* 1125-Line (US) HDTV */
      V4L2_COLORSPACE_SMPTE240M     = 2,

      /* HD and modern captures. */
      V4L2_COLORSPACE_REC709        = 3,

      /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */
      V4L2_COLORSPACE_BT878         = 4,

      /* These should be useful.  Assume 601 extents. */
      V4L2_COLORSPACE_470_SYSTEM_M  = 5,
      V4L2_COLORSPACE_470_SYSTEM_BG = 6,

      /* I know there will be cameras that send this.  So, this is
       * unspecified chromaticities and full 0-255 on each of the
       * Y'CbCr components
       */
      V4L2_COLORSPACE_JPEG          = 7,

      /* For RGB colourspaces, this is probably a good start. */
      V4L2_COLORSPACE_SRGB          = 8,
};

enum v4l2_priority {
      V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
      V4L2_PRIORITY_BACKGROUND  = 1,
      V4L2_PRIORITY_INTERACTIVE = 2,
      V4L2_PRIORITY_RECORD      = 3,
      V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
};

struct v4l2_rect {
      __s32   left;
      __s32   top;
      __s32   width;
      __s32   height;
};

struct v4l2_fract {
      __u32   numerator;
      __u32   denominator;
};

/*
 *    D R I V E R   C A P A B I L I T I E S
 */
struct v4l2_capability
{
      __u8  driver[16]; /* i.e. "bttv" */
      __u8  card[32];   /* i.e. "Hauppauge WinTV" */
      __u8  bus_info[32];     /* "PCI:" + pci_name(pci_dev) */
      __u32   version;        /* should use KERNEL_VERSION() */
      __u32 capabilities;     /* Device capabilities */
      __u32 reserved[4];
};

/* Values for 'capabilities' field */
#define V4L2_CAP_VIDEO_CAPTURE            0x00000001  /* Is a video capture device */
#define V4L2_CAP_VIDEO_OUTPUT       0x00000002  /* Is a video output device */
#define V4L2_CAP_VIDEO_OVERLAY            0x00000004  /* Can do video overlay */
#define V4L2_CAP_VBI_CAPTURE        0x00000010  /* Is a raw VBI capture device */
#define V4L2_CAP_VBI_OUTPUT         0x00000020  /* Is a raw VBI output device */
#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040  /* Is a sliced VBI capture device */
#define V4L2_CAP_SLICED_VBI_OUTPUT  0x00000080  /* Is a sliced VBI output device */
#define V4L2_CAP_RDS_CAPTURE        0x00000100  /* RDS data capture */
#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY     0x00000200  /* Can do video output overlay */

#define V4L2_CAP_TUNER              0x00010000  /* has a tuner */
#define V4L2_CAP_AUDIO              0x00020000  /* has audio support */
#define V4L2_CAP_RADIO              0x00040000  /* is a radio device */

#define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
#define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
#define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */

/*
 *    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             pixelformat;
      enum v4l2_field   field;
      __u32             bytesperline;     /* for padding, zero if unused */
      __u32                   sizeimage;
      enum v4l2_colorspace    colorspace;
      __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_RGB444  v4l2_fourcc('R','4','4','4') /* 16  xxxxrrrr ggggbbbb */
#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_PAL8    v4l2_fourcc('P','A','L','8') /*  8  8-bit palette */
#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_UYVY    v4l2_fourcc('U','Y','V','Y') /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4','2','2','P') /* 16  YVU422 planar */
#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4','1','1','P') /* 16  YVU411 planar */
#define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y','4','1','P') /* 12  YUV 4:1:1     */
#define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y','4','4','4') /* 16  xxxxyyyy uuuuvvvv */
#define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y','U','V','O') /* 16  YUV-5-5-5     */
#define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y','U','V','P') /* 16  YUV-5-6-5     */
#define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y','U','V','4') /* 32  YUV-8-8-8-8   */

/* two planes -- one Y, one Cr + Cb interleaved  */
#define V4L2_PIX_FMT_NV12    v4l2_fourcc('N','V','1','2') /* 12  Y/CbCr 4:2:0  */
#define V4L2_PIX_FMT_NV21    v4l2_fourcc('N','V','2','1') /* 12  Y/CrCb 4:2:0  */

/*  The following formats are not defined in the V4L2 specification */
#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_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_HM12    v4l2_fourcc('H','M','1','2') /*  8  YUV 4:2:0 16x16 macroblocks */

/* see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B','A','8','1') /*  8  BGBG.. GRGR.. */

/* compressed formats */
#define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M','J','P','G') /* Motion-JPEG   */
#define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J','P','E','G') /* JFIF JPEG     */
#define V4L2_PIX_FMT_DV       v4l2_fourcc('d','v','s','d') /* 1394          */
#define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M','P','E','G') /* MPEG-1/2/4    */

/*  Vendor-specific formats   */
#define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W','N','V','A') /* Winnov hw compress */
#define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
#define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P','W','C','1') /* pwc older webcam */
#define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P','W','C','2') /* pwc newer webcam */
#define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E','6','2','5') /* ET61X251 compression */

/*
 *    F O R M A T   E N U M E R A T I O N
 */
struct v4l2_fmtdesc
{
      __u32           index;             /* Format number      */
      enum v4l2_buf_type  type;              /* buffer type        */
      __u32               flags;
      __u8            description[32];   /* Description string */
      __u32           pixelformat;       /* Format fourcc      */
      __u32           reserved[4];
};

#define V4L2_FMT_FLAG_COMPRESSED 0x0001

#if 1
      /* Experimental Frame Size and frame rate enumeration */
/*
 *    F R A M E   S I Z E   E N U M E R A T I O N
 */
enum v4l2_frmsizetypes
{
      V4L2_FRMSIZE_TYPE_DISCRETE    = 1,
      V4L2_FRMSIZE_TYPE_CONTINUOUS  = 2,
      V4L2_FRMSIZE_TYPE_STEPWISE    = 3,
};

struct v4l2_frmsize_discrete
{
      __u32             width;            /* Frame width [pixel] */
      __u32             height;           /* Frame height [pixel] */
};

struct v4l2_frmsize_stepwise
{
      __u32             min_width;  /* Minimum frame width [pixel] */
      __u32             max_width;  /* Maximum frame width [pixel] */
      __u32             step_width; /* Frame width step size [pixel] */
      __u32             min_height; /* Minimum frame height [pixel] */
      __u32             max_height; /* Maximum frame height [pixel] */
      __u32             step_height;      /* Frame height step size [pixel] */
};

struct v4l2_frmsizeenum
{
      __u32             index;            /* Frame size number */
      __u32             pixel_format;     /* Pixel format */
      __u32             type;       /* Frame size type the device supports. */

      union {                             /* Frame size */
            struct v4l2_frmsize_discrete  discrete;
            struct v4l2_frmsize_stepwise  stepwise;
      };

      __u32   reserved[2];                /* Reserved space for future use */
};

/*
 *    F R A M E   R A T E   E N U M E R A T I O N
 */
enum v4l2_frmivaltypes
{
      V4L2_FRMIVAL_TYPE_DISCRETE    = 1,
      V4L2_FRMIVAL_TYPE_CONTINUOUS  = 2,
      V4L2_FRMIVAL_TYPE_STEPWISE    = 3,
};

struct v4l2_frmival_stepwise
{
      struct v4l2_fract min;        /* Minimum frame interval [s] */
      struct v4l2_fract max;        /* Maximum frame interval [s] */
      struct v4l2_fract step;       /* Frame interval step size [s] */
};

struct v4l2_frmivalenum
{
      __u32             index;            /* Frame format index */
      __u32             pixel_format;     /* Pixel format */
      __u32             width;            /* Frame width */
      __u32             height;           /* Frame height */
      __u32             type;       /* Frame interval type the device supports. */

      union {                             /* Frame interval */
            struct v4l2_fract       discrete;
            struct v4l2_frmival_stepwise  stepwise;
      };

      __u32 reserved[2];                  /* Reserved space for future use */
};
#endif

/*
 *    T I M E C O D E
 */
struct v4l2_timecode
{
      __u32 type;
      __u32 flags;
      __u8  frames;
      __u8  seconds;
      __u8  minutes;
      __u8  hours;
      __u8  userbits[4];
};

/*  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 */

struct v4l2_jpegcompression
{
      int quality;

      int  APPn;              /* Number of APP segment to be written,
                         * must be 0..15 */
      int  APP_len;           /* Length of data in JPEG APPn segment */
      char APP_data[60];      /* Data in the JPEG APPn segment. */

      int  COM_len;           /* Length of data in JPEG COM segment */
      char COM_data[60];      /* Data in JPEG COM segment */

      __u32 jpeg_markers;     /* Which markers should go into the JPEG
                         * output. Unless you exactly know what
                         * you do, leave them untouched.
                         * Inluding less markers will make the
                         * resulting code smaller, but there will
                         * be fewer aplications which can read it.
                         * The presence of the APP and COM marker
                         * is influenced by APP_len and COM_len
                         * ONLY, not by this property! */

#define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
#define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
#define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
#define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
#define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
                              * allways use APP0 */
};

/*
 *    M E M O R Y - M A P P I N G   B U F F E R S
 */
struct v4l2_requestbuffers
{
      __u32             count;
      enum v4l2_buf_type      type;
      enum v4l2_memory        memory;
      __u32             reserved[2];
};

struct v4l2_buffer
{
      __u32             index;
      enum v4l2_buf_type      type;
      __u32             bytesused;
      __u32             flags;
      enum v4l2_field         field;
      struct timeval          timestamp;
      struct v4l2_timecode    timecode;
      __u32             sequence;

      /* memory location */
      enum v4l2_memory        memory;
      union {
            __u32           offset;
            unsigned long   userptr;
      } m;
      __u32             length;
      __u32             input;
      __u32             reserved;
};

/*  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_TIMECODE      0x0100      /* timecode field is valid */
#define V4L2_BUF_FLAG_INPUT     0x0200  /* input field is valid */

/*
 *    O V E R L A Y   P R E V I E W
 */
struct v4l2_framebuffer
{
      __u32             capability;
      __u32             flags;
/* FIXME: in theory we should pass something like PCI device + memory
 * region + offset instead of some physical address */
      void*                   base;
      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_LIST_CLIPPING     0x0004
#define V4L2_FBUF_CAP_BITMAP_CLIPPING     0x0008
#define V4L2_FBUF_CAP_LOCAL_ALPHA   0x0010
#define V4L2_FBUF_CAP_GLOBAL_ALPHA  0x0020
#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA     0x0040
/*  Flags for the 'flags' field. */
#define V4L2_FBUF_FLAG_PRIMARY            0x0001
#define V4L2_FBUF_FLAG_OVERLAY            0x0002
#define V4L2_FBUF_FLAG_CHROMAKEY    0x0004
#define V4L2_FBUF_FLAG_LOCAL_ALPHA  0x0008
#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010
#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA    0x0020

struct v4l2_clip
{
      struct v4l2_rect        c;
      struct v4l2_clip  __user *next;
};

struct v4l2_window
{
      struct v4l2_rect        w;
      enum v4l2_field   field;
      __u32             chromakey;
      struct v4l2_clip  __user *clips;
      __u32             clipcount;
      void              __user *bitmap;
      __u8                    global_alpha;
};

/*
 *    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 */
      struct v4l2_fract  timeperframe;  /*  Time per frame in .1us units */
      __u32          extendedmode;  /*  Driver-specific extensions */
      __u32              readbuffers;   /*  # of buffers for read */
      __u32          reserved[4];
};

/*  Flags for 'capability' and 'capturemode' fields */
#define V4L2_MODE_HIGHQUALITY 0x0001      /*  High quality imaging mode */
#define V4L2_CAP_TIMEPERFRAME 0x1000      /*  timeperframe field is supported */

struct v4l2_outputparm
{
      __u32          capability;     /*  Supported modes */
      __u32          outputmode;     /*  Current mode */
      struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
      __u32          extendedmode; /*  Driver-specific extensions */
      __u32              writebuffers; /*  # of buffers for write */
      __u32          reserved[4];
};

/*
 *    I N P U T   I M A G E   C R O P P I N G
 */
struct v4l2_cropcap {
      enum v4l2_buf_type      type;
      struct v4l2_rect        bounds;
      struct v4l2_rect        defrect;
      struct v4l2_fract       pixelaspect;
};

struct v4l2_crop {
      enum v4l2_buf_type      type;
      struct v4l2_rect        c;
};

/*
 *      A N A L O G   V I D E O   S T A N D A R D
 */

typedef __u64 v4l2_std_id;

/* one bit for each */
#define V4L2_STD_PAL_B          ((v4l2_std_id)0x00000001)
#define V4L2_STD_PAL_B1         ((v4l2_std_id)0x00000002)
#define V4L2_STD_PAL_G          ((v4l2_std_id)0x00000004)
#define V4L2_STD_PAL_H          ((v4l2_std_id)0x00000008)
#define V4L2_STD_PAL_I          ((v4l2_std_id)0x00000010)
#define V4L2_STD_PAL_D          ((v4l2_std_id)0x00000020)
#define V4L2_STD_PAL_D1         ((v4l2_std_id)0x00000040)
#define V4L2_STD_PAL_K          ((v4l2_std_id)0x00000080)

#define V4L2_STD_PAL_M          ((v4l2_std_id)0x00000100)
#define V4L2_STD_PAL_N          ((v4l2_std_id)0x00000200)
#define V4L2_STD_PAL_Nc         ((v4l2_std_id)0x00000400)
#define V4L2_STD_PAL_60         ((v4l2_std_id)0x00000800)

#define V4L2_STD_NTSC_M         ((v4l2_std_id)0x00001000)
#define V4L2_STD_NTSC_M_JP      ((v4l2_std_id)0x00002000)
#define V4L2_STD_NTSC_443       ((v4l2_std_id)0x00004000)
#define V4L2_STD_NTSC_M_KR      ((v4l2_std_id)0x00008000)

#define V4L2_STD_SECAM_B        ((v4l2_std_id)0x00010000)
#define V4L2_STD_SECAM_D        ((v4l2_std_id)0x00020000)
#define V4L2_STD_SECAM_G        ((v4l2_std_id)0x00040000)
#define V4L2_STD_SECAM_H        ((v4l2_std_id)0x00080000)
#define V4L2_STD_SECAM_K        ((v4l2_std_id)0x00100000)
#define V4L2_STD_SECAM_K1       ((v4l2_std_id)0x00200000)
#define V4L2_STD_SECAM_L        ((v4l2_std_id)0x00400000)
#define V4L2_STD_SECAM_LC       ((v4l2_std_id)0x00800000)

/* ATSC/HDTV */
#define V4L2_STD_ATSC_8_VSB     ((v4l2_std_id)0x01000000)
#define V4L2_STD_ATSC_16_VSB    ((v4l2_std_id)0x02000000)

/* FIXME:
   Although std_id is 64 bits, there is an issue on PPC32 architecture that
   makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding
   this value to 32 bits.
   As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide),
   it should work fine. However, if needed to add more than two standards,
   v4l2-common.c should be fixed.
 */

/* some merged standards */
#define V4L2_STD_MN     (V4L2_STD_PAL_M|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|V4L2_STD_NTSC)
#define V4L2_STD_B      (V4L2_STD_PAL_B|V4L2_STD_PAL_B1|V4L2_STD_SECAM_B)
#define V4L2_STD_GH     (V4L2_STD_PAL_G|V4L2_STD_PAL_H|V4L2_STD_SECAM_G|V4L2_STD_SECAM_H)
#define V4L2_STD_DK     (V4L2_STD_PAL_DK|V4L2_STD_SECAM_DK)

/* some common needed stuff */
#define V4L2_STD_PAL_BG       (V4L2_STD_PAL_B         |\
                         V4L2_STD_PAL_B1  |\
                         V4L2_STD_PAL_G)
#define V4L2_STD_PAL_DK       (V4L2_STD_PAL_D         |\
                         V4L2_STD_PAL_D1  |\
                         V4L2_STD_PAL_K)
#define V4L2_STD_PAL          (V4L2_STD_PAL_BG  |\
                         V4L2_STD_PAL_DK  |\
                         V4L2_STD_PAL_H         |\
                         V4L2_STD_PAL_I)
#define V4L2_STD_NTSC           (V4L2_STD_NTSC_M      |\
                         V4L2_STD_NTSC_M_JP     |\
                         V4L2_STD_NTSC_M_KR)
#define V4L2_STD_SECAM_DK           (V4L2_STD_SECAM_D |\
                         V4L2_STD_SECAM_K |\
                         V4L2_STD_SECAM_K1)
#define V4L2_STD_SECAM        (V4L2_STD_SECAM_B |\
                         V4L2_STD_SECAM_G |\
                         V4L2_STD_SECAM_H |\
                         V4L2_STD_SECAM_DK      |\
                         V4L2_STD_SECAM_L       |\
                         V4L2_STD_SECAM_LC)

#define V4L2_STD_525_60       (V4L2_STD_PAL_M         |\
                         V4L2_STD_PAL_60  |\
                         V4L2_STD_NTSC          |\
                         V4L2_STD_NTSC_443)
#define V4L2_STD_625_50       (V4L2_STD_PAL           |\
                         V4L2_STD_PAL_N         |\
                         V4L2_STD_PAL_Nc  |\
                         V4L2_STD_SECAM)
#define V4L2_STD_ATSC           (V4L2_STD_ATSC_8_VSB    |\
                         V4L2_STD_ATSC_16_VSB)

#define V4L2_STD_UNKNOWN        0
#define V4L2_STD_ALL            (V4L2_STD_525_60      |\
                         V4L2_STD_625_50)

struct v4l2_standard
{
      __u32            index;
      v4l2_std_id          id;
      __u8             name[24];
      struct v4l2_fract    frameperiod; /* Frames, not fields */
      __u32            framelines;
      __u32            reserved[4];
};

/*
 *    V I D E O   I N P U T S
 */
struct v4l2_input
{
      __u32      index;       /*  Which input */
      __u8       name[32];          /*  Label */
      __u32      type;        /*  Type of input */
      __u32      audioset;          /*  Associated audios (bitfield) */
      __u32        tuner;             /*  Associated tuner */
      v4l2_std_id  std;
      __u32      status;
      __u32      reserved[4];
};

/*  Values for the 'type' field */
#define V4L2_INPUT_TYPE_TUNER       1
#define V4L2_INPUT_TYPE_CAMERA            2

/* field 'status' - general */
#define V4L2_IN_ST_NO_POWER    0x00000001  /* Attached device is off */
#define V4L2_IN_ST_NO_SIGNAL   0x00000002
#define V4L2_IN_ST_NO_COLOR    0x00000004

/* field 'status' - analog */
#define V4L2_IN_ST_NO_H_LOCK   0x00000100  /* No horizontal sync lock */
#define V4L2_IN_ST_COLOR_KILL  0x00000200  /* Color killer is active */

/* field 'status' - digital */
#define V4L2_IN_ST_NO_SYNC     0x00010000  /* No synchronization lock */
#define V4L2_IN_ST_NO_EQU      0x00020000  /* No equalizer lock */
#define V4L2_IN_ST_NO_CARRIER  0x00040000  /* Carrier recovery failed */

/* field 'status' - VCR and set-top box */
#define V4L2_IN_ST_MACROVISION 0x01000000  /* Macrovision detected */
#define V4L2_IN_ST_NO_ACCESS   0x02000000  /* Conditional access denied */
#define V4L2_IN_ST_VTR         0x04000000  /* VTR time constant */

/*
 *    V I D E O   O U T P U T S
 */
struct v4l2_output
{
      __u32      index;       /*  Which output */
      __u8       name[32];          /*  Label */
      __u32      type;        /*  Type of output */
      __u32      audioset;          /*  Associated audios (bitfield) */
      __u32      modulator;         /*  Associated modulator */
      v4l2_std_id  std;
      __u32      reserved[4];
};
/*  Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR        1
#define V4L2_OUTPUT_TYPE_ANALOG                 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3

/*
 *    C O N T R O L S
 */
struct v4l2_control
{
      __u32            id;
      __s32            value;
};

struct v4l2_ext_control
{
      __u32 id;
      __u32 reserved2[2];
      union {
            __s32 value;
            __s64 value64;
            void *reserved;
      };
} __attribute__ ((packed));

struct v4l2_ext_controls
{
      __u32 ctrl_class;
      __u32 count;
      __u32 error_idx;
      __u32 reserved[2];
      struct v4l2_ext_control *controls;
};

/*  Values for ctrl_class field */
#define V4L2_CTRL_CLASS_USER 0x00980000   /* Old-style 'user' controls */
#define V4L2_CTRL_CLASS_MPEG 0x00990000   /* MPEG-compression controls */

#define V4L2_CTRL_ID_MASK             (0x0fffffff)
#define V4L2_CTRL_ID2CLASS(id)    ((id) & 0x0fff0000UL)
#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)

/*  Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
struct v4l2_queryctrl
{
      __u32            id;
      enum v4l2_ctrl_type  type;
      __u8             name[32];    /* Whatever */
      __s32            minimum;     /* Note signedness */
      __s32            maximum;
      __s32            step;
      __s32            default_value;
      __u32                flags;
      __u32            reserved[2];
};

/*  Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
struct v4l2_querymenu
{
      __u32       id;
      __u32       index;
      __u8        name[32];   /* Whatever */
      __u32       reserved;
};

/*  Control flags  */
#define V4L2_CTRL_FLAG_DISABLED           0x0001
#define V4L2_CTRL_FLAG_GRABBED            0x0002
#define V4L2_CTRL_FLAG_READ_ONLY    0x0004
#define V4L2_CTRL_FLAG_UPDATE             0x0008
#define V4L2_CTRL_FLAG_INACTIVE     0x0010
#define V4L2_CTRL_FLAG_SLIDER             0x0020

/*  Query flag, to be ORed with the control ID */
#define V4L2_CTRL_FLAG_NEXT_CTRL    0x80000000

/*  User-class control IDs defined by V4L2 */
#define V4L2_CID_BASE               (V4L2_CTRL_CLASS_USER | 0x900)
#define V4L2_CID_USER_BASE          V4L2_CID_BASE
/*  IDs reserved for driver specific controls */
#define V4L2_CID_PRIVATE_BASE       0x08000000

#define V4L2_CID_USER_CLASS         (V4L2_CTRL_CLASS_USER | 1)
#define V4L2_CID_BRIGHTNESS         (V4L2_CID_BASE+0)
#define V4L2_CID_CONTRAST           (V4L2_CID_BASE+1)
#define V4L2_CID_SATURATION         (V4L2_CID_BASE+2)
#define V4L2_CID_HUE                (V4L2_CID_BASE+3)
#define V4L2_CID_AUDIO_VOLUME       (V4L2_CID_BASE+5)
#define V4L2_CID_AUDIO_BALANCE            (V4L2_CID_BASE+6)
#define V4L2_CID_AUDIO_BASS         (V4L2_CID_BASE+7)
#define V4L2_CID_AUDIO_TREBLE       (V4L2_CID_BASE+8)
#define V4L2_CID_AUDIO_MUTE         (V4L2_CID_BASE+9)
#define V4L2_CID_AUDIO_LOUDNESS           (V4L2_CID_BASE+10)
#define V4L2_CID_BLACK_LEVEL        (V4L2_CID_BASE+11)
#define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
#define V4L2_CID_DO_WHITE_BALANCE   (V4L2_CID_BASE+13)
#define V4L2_CID_RED_BALANCE        (V4L2_CID_BASE+14)
#define V4L2_CID_BLUE_BALANCE       (V4L2_CID_BASE+15)
#define V4L2_CID_GAMMA              (V4L2_CID_BASE+16)
#define V4L2_CID_WHITENESS          (V4L2_CID_GAMMA) /* ? Not sure */
#define V4L2_CID_EXPOSURE           (V4L2_CID_BASE+17)
#define V4L2_CID_AUTOGAIN           (V4L2_CID_BASE+18)
#define V4L2_CID_GAIN               (V4L2_CID_BASE+19)
#define V4L2_CID_HFLIP              (V4L2_CID_BASE+20)
#define V4L2_CID_VFLIP              (V4L2_CID_BASE+21)
#define V4L2_CID_HCENTER            (V4L2_CID_BASE+22)
#define V4L2_CID_VCENTER            (V4L2_CID_BASE+23)
#define V4L2_CID_LASTP1             (V4L2_CID_BASE+24) /* last CID + 1 */

/*  MPEG-class control IDs defined by V4L2 */
#define V4L2_CID_MPEG_BASE                (V4L2_CTRL_CLASS_MPEG | 0x900)
#define V4L2_CID_MPEG_CLASS               (V4L2_CTRL_CLASS_MPEG | 1)

/*  MPEG streams */
#define V4L2_CID_MPEG_STREAM_TYPE         (V4L2_CID_MPEG_BASE+0)
enum v4l2_mpeg_stream_type {
      V4L2_MPEG_STREAM_TYPE_MPEG2_PS   = 0, /* MPEG-2 program stream */
      V4L2_MPEG_STREAM_TYPE_MPEG2_TS   = 1, /* MPEG-2 transport stream */
      V4L2_MPEG_STREAM_TYPE_MPEG1_SS   = 2, /* MPEG-1 system stream */
      V4L2_MPEG_STREAM_TYPE_MPEG2_DVD  = 3, /* MPEG-2 DVD-compatible stream */
      V4L2_MPEG_STREAM_TYPE_MPEG1_VCD  = 4, /* MPEG-1 VCD-compatible stream */
      V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD = 5, /* MPEG-2 SVCD-compatible stream */
};
#define V4L2_CID_MPEG_STREAM_PID_PMT            (V4L2_CID_MPEG_BASE+1)
#define V4L2_CID_MPEG_STREAM_PID_AUDIO          (V4L2_CID_MPEG_BASE+2)
#define V4L2_CID_MPEG_STREAM_PID_VIDEO          (V4L2_CID_MPEG_BASE+3)
#define V4L2_CID_MPEG_STREAM_PID_PCR            (V4L2_CID_MPEG_BASE+4)
#define V4L2_CID_MPEG_STREAM_PES_ID_AUDIO       (V4L2_CID_MPEG_BASE+5)
#define V4L2_CID_MPEG_STREAM_PES_ID_VIDEO       (V4L2_CID_MPEG_BASE+6)
#define V4L2_CID_MPEG_STREAM_VBI_FMT            (V4L2_CID_MPEG_BASE+7)
enum v4l2_mpeg_stream_vbi_fmt {
      V4L2_MPEG_STREAM_VBI_FMT_NONE = 0,  /* No VBI in the MPEG stream */
      V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1,  /* VBI in private packets, IVTV format */
};

/*  MPEG audio */
#define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ       (V4L2_CID_MPEG_BASE+100)
enum v4l2_mpeg_audio_sampling_freq {
      V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100 = 0,
      V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000 = 1,
      V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000 = 2,
};
#define V4L2_CID_MPEG_AUDIO_ENCODING            (V4L2_CID_MPEG_BASE+101)
enum v4l2_mpeg_audio_encoding {
      V4L2_MPEG_AUDIO_ENCODING_LAYER_1 = 0,
      V4L2_MPEG_AUDIO_ENCODING_LAYER_2 = 1,
      V4L2_MPEG_AUDIO_ENCODING_LAYER_3 = 2,
};
#define V4L2_CID_MPEG_AUDIO_L1_BITRATE          (V4L2_CID_MPEG_BASE+102)
enum v4l2_mpeg_audio_l1_bitrate {
      V4L2_MPEG_AUDIO_L1_BITRATE_32K  = 0,
      V4L2_MPEG_AUDIO_L1_BITRATE_64K  = 1,
      V4L2_MPEG_AUDIO_L1_BITRATE_96K  = 2,
      V4L2_MPEG_AUDIO_L1_BITRATE_128K = 3,
      V4L2_MPEG_AUDIO_L1_BITRATE_160K = 4,
      V4L2_MPEG_AUDIO_L1_BITRATE_192K = 5,
      V4L2_MPEG_AUDIO_L1_BITRATE_224K = 6,
      V4L2_MPEG_AUDIO_L1_BITRATE_256K = 7,
      V4L2_MPEG_AUDIO_L1_BITRATE_288K = 8,
      V4L2_MPEG_AUDIO_L1_BITRATE_320K = 9,
      V4L2_MPEG_AUDIO_L1_BITRATE_352K = 10,
      V4L2_MPEG_AUDIO_L1_BITRATE_384K = 11,
      V4L2_MPEG_AUDIO_L1_BITRATE_416K = 12,
      V4L2_MPEG_AUDIO_L1_BITRATE_448K = 13,
};
#define V4L2_CID_MPEG_AUDIO_L2_BITRATE          (V4L2_CID_MPEG_BASE+103)
enum v4l2_mpeg_audio_l2_bitrate {
      V4L2_MPEG_AUDIO_L2_BITRATE_32K  = 0,
      V4L2_MPEG_AUDIO_L2_BITRATE_48K  = 1,
      V4L2_MPEG_AUDIO_L2_BITRATE_56K  = 2,
      V4L2_MPEG_AUDIO_L2_BITRATE_64K  = 3,
      V4L2_MPEG_AUDIO_L2_BITRATE_80K  = 4,
      V4L2_MPEG_AUDIO_L2_BITRATE_96K  = 5,
      V4L2_MPEG_AUDIO_L2_BITRATE_112K = 6,
      V4L2_MPEG_AUDIO_L2_BITRATE_128K = 7,
      V4L2_MPEG_AUDIO_L2_BITRATE_160K = 8,
      V4L2_MPEG_AUDIO_L2_BITRATE_192K = 9,
      V4L2_MPEG_AUDIO_L2_BITRATE_224K = 10,
      V4L2_MPEG_AUDIO_L2_BITRATE_256K = 11,
      V4L2_MPEG_AUDIO_L2_BITRATE_320K = 12,
      V4L2_MPEG_AUDIO_L2_BITRATE_384K = 13,
};
#define V4L2_CID_MPEG_AUDIO_L3_BITRATE          (V4L2_CID_MPEG_BASE+104)
enum v4l2_mpeg_audio_l3_bitrate {
      V4L2_MPEG_AUDIO_L3_BITRATE_32K  = 0,
      V4L2_MPEG_AUDIO_L3_BITRATE_40K  = 1,
      V4L2_MPEG_AUDIO_L3_BITRATE_48K  = 2,
      V4L2_MPEG_AUDIO_L3_BITRATE_56K  = 3,
      V4L2_MPEG_AUDIO_L3_BITRATE_64K  = 4,
      V4L2_MPEG_AUDIO_L3_BITRATE_80K  = 5,
      V4L2_MPEG_AUDIO_L3_BITRATE_96K  = 6,
      V4L2_MPEG_AUDIO_L3_BITRATE_112K = 7,
      V4L2_MPEG_AUDIO_L3_BITRATE_128K = 8,
      V4L2_MPEG_AUDIO_L3_BITRATE_160K = 9,
      V4L2_MPEG_AUDIO_L3_BITRATE_192K = 10,
      V4L2_MPEG_AUDIO_L3_BITRATE_224K = 11,
      V4L2_MPEG_AUDIO_L3_BITRATE_256K = 12,
      V4L2_MPEG_AUDIO_L3_BITRATE_320K = 13,
};
#define V4L2_CID_MPEG_AUDIO_MODE          (V4L2_CID_MPEG_BASE+105)
enum v4l2_mpeg_audio_mode {
      V4L2_MPEG_AUDIO_MODE_STEREO       = 0,
      V4L2_MPEG_AUDIO_MODE_JOINT_STEREO = 1,
      V4L2_MPEG_AUDIO_MODE_DUAL         = 2,
      V4L2_MPEG_AUDIO_MODE_MONO         = 3,
};
#define V4L2_CID_MPEG_AUDIO_MODE_EXTENSION      (V4L2_CID_MPEG_BASE+106)
enum v4l2_mpeg_audio_mode_extension {
      V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4  = 0,
      V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_8  = 1,
      V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_12 = 2,
      V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16 = 3,
};
#define V4L2_CID_MPEG_AUDIO_EMPHASIS            (V4L2_CID_MPEG_BASE+107)
enum v4l2_mpeg_audio_emphasis {
      V4L2_MPEG_AUDIO_EMPHASIS_NONE         = 0,
      V4L2_MPEG_AUDIO_EMPHASIS_50_DIV_15_uS = 1,
      V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17    = 2,
};
#define V4L2_CID_MPEG_AUDIO_CRC           (V4L2_CID_MPEG_BASE+108)
enum v4l2_mpeg_audio_crc {
      V4L2_MPEG_AUDIO_CRC_NONE  = 0,
      V4L2_MPEG_AUDIO_CRC_CRC16 = 1,
};
#define V4L2_CID_MPEG_AUDIO_MUTE          (V4L2_CID_MPEG_BASE+109)

/*  MPEG video */
#define V4L2_CID_MPEG_VIDEO_ENCODING            (V4L2_CID_MPEG_BASE+200)
enum v4l2_mpeg_video_encoding {
      V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0,
      V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1,
};
#define V4L2_CID_MPEG_VIDEO_ASPECT        (V4L2_CID_MPEG_BASE+201)
enum v4l2_mpeg_video_aspect {
      V4L2_MPEG_VIDEO_ASPECT_1x1     = 0,
      V4L2_MPEG_VIDEO_ASPECT_4x3     = 1,
      V4L2_MPEG_VIDEO_ASPECT_16x9    = 2,
      V4L2_MPEG_VIDEO_ASPECT_221x100 = 3,
};
#define V4L2_CID_MPEG_VIDEO_B_FRAMES            (V4L2_CID_MPEG_BASE+202)
#define V4L2_CID_MPEG_VIDEO_GOP_SIZE            (V4L2_CID_MPEG_BASE+203)
#define V4L2_CID_MPEG_VIDEO_GOP_CLOSURE   (V4L2_CID_MPEG_BASE+204)
#define V4L2_CID_MPEG_VIDEO_PULLDOWN            (V4L2_CID_MPEG_BASE+205)
#define V4L2_CID_MPEG_VIDEO_BITRATE_MODE  (V4L2_CID_MPEG_BASE+206)
enum v4l2_mpeg_video_bitrate_mode {
      V4L2_MPEG_VIDEO_BITRATE_MODE_VBR = 0,
      V4L2_MPEG_VIDEO_BITRATE_MODE_CBR = 1,
};
#define V4L2_CID_MPEG_VIDEO_BITRATE             (V4L2_CID_MPEG_BASE+207)
#define V4L2_CID_MPEG_VIDEO_BITRATE_PEAK  (V4L2_CID_MPEG_BASE+208)
#define V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION (V4L2_CID_MPEG_BASE+209)
#define V4L2_CID_MPEG_VIDEO_MUTE          (V4L2_CID_MPEG_BASE+210)
#define V4L2_CID_MPEG_VIDEO_MUTE_YUV            (V4L2_CID_MPEG_BASE+211)

/*  MPEG-class control IDs specific to the CX2584x driver as defined by V4L2 */
#define V4L2_CID_MPEG_CX2341X_BASE                    (V4L2_CTRL_CLASS_MPEG | 0x1000)
#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE     (V4L2_CID_MPEG_CX2341X_BASE+0)
enum v4l2_mpeg_cx2341x_video_spatial_filter_mode {
      V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL = 0,
      V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO   = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER          (V4L2_CID_MPEG_CX2341X_BASE+1)
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE      (V4L2_CID_MPEG_CX2341X_BASE+2)
enum v4l2_mpeg_cx2341x_video_luma_spatial_filter_type {
      V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF                  = 0,
      V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR               = 1,
      V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_VERT              = 2,
      V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_HV_SEPARABLE      = 3,
      V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_SYM_NON_SEPARABLE = 4,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE    (V4L2_CID_MPEG_CX2341X_BASE+3)
enum v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type {
      V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF    = 0,
      V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE    (V4L2_CID_MPEG_CX2341X_BASE+4)
enum v4l2_mpeg_cx2341x_video_temporal_filter_mode {
      V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL = 0,
      V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO   = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER         (V4L2_CID_MPEG_CX2341X_BASE+5)
#define V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE            (V4L2_CID_MPEG_CX2341X_BASE+6)
enum v4l2_mpeg_cx2341x_video_median_filter_type {
      V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF      = 0,
      V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR      = 1,
      V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_VERT     = 2,
      V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR_VERT = 3,
      V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_DIAG     = 4,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM     (V4L2_CID_MPEG_CX2341X_BASE+7)
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP  (V4L2_CID_MPEG_CX2341X_BASE+8)
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM   (V4L2_CID_MPEG_CX2341X_BASE+9)
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP      (V4L2_CID_MPEG_CX2341X_BASE+10)
#define V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS     (V4L2_CID_MPEG_CX2341X_BASE+11)

/*
 *    T U N I N G
 */
struct v4l2_tuner
{
      __u32                   index;
      __u8              name[32];
      enum v4l2_tuner_type    type;
      __u32             capability;
      __u32             rangelow;
      __u32             rangehigh;
      __u32             rxsubchans;
      __u32             audmode;
      __s32             signal;
      __s32             afc;
      __u32             reserved[4];
};

struct v4l2_modulator
{
      __u32             index;
      __u8              name[32];
      __u32             capability;
      __u32             rangelow;
      __u32             rangehigh;
      __u32             txsubchans;
      __u32             reserved[4];
};

/*  Flags for the 'capability' field */
#define V4L2_TUNER_CAP_LOW          0x0001
#define V4L2_TUNER_CAP_NORM         0x0002
#define V4L2_TUNER_CAP_STEREO       0x0010
#define V4L2_TUNER_CAP_LANG2        0x0020
#define V4L2_TUNER_CAP_SAP          0x0020
#define V4L2_TUNER_CAP_LANG1        0x0040

/*  Flags for the 'rxsubchans' field */
#define V4L2_TUNER_SUB_MONO         0x0001
#define V4L2_TUNER_SUB_STEREO       0x0002
#define V4L2_TUNER_SUB_LANG2        0x0004
#define V4L2_TUNER_SUB_SAP          0x0004
#define V4L2_TUNER_SUB_LANG1        0x0008

/*  Values for the 'audmode' field */
#define V4L2_TUNER_MODE_MONO        0x0000
#define V4L2_TUNER_MODE_STEREO            0x0001
#define V4L2_TUNER_MODE_LANG2       0x0002
#define V4L2_TUNER_MODE_SAP         0x0002
#define V4L2_TUNER_MODE_LANG1       0x0003
#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004

struct v4l2_frequency
{
      __u32             tuner;
      enum v4l2_tuner_type  type;
      __u32             frequency;
      __u32             reserved[8];
};

/*
 *    A U D I O
 */
struct v4l2_audio
{
      __u32 index;
      __u8  name[32];
      __u32 capability;
      __u32 mode;
      __u32 reserved[2];
};

/*  Flags for the 'capability' field */
#define V4L2_AUDCAP_STEREO          0x00001
#define V4L2_AUDCAP_AVL             0x00002

/*  Flags for the 'mode' field */
#define V4L2_AUDMODE_AVL            0x00001

struct v4l2_audioout
{
      __u32 index;
      __u8  name[32];
      __u32 capability;
      __u32 mode;
      __u32 reserved[2];
};

/*
 *    M P E G   S E R V I C E S
 *
 *    NOTE: EXPERIMENTAL API
 */
#if 1
#define V4L2_ENC_IDX_FRAME_I    (0)
#define V4L2_ENC_IDX_FRAME_P    (1)
#define V4L2_ENC_IDX_FRAME_B    (2)
#define V4L2_ENC_IDX_FRAME_MASK (0xf)

struct v4l2_enc_idx_entry {
      __u64 offset;
      __u64 pts;
      __u32 length;
      __u32 flags;
      __u32 reserved[2];
};

#define V4L2_ENC_IDX_ENTRIES (64)
struct v4l2_enc_idx {
      __u32 entries;
      __u32 entries_cap;
      __u32 reserved[4];
      struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
};


#define V4L2_ENC_CMD_START      (0)
#define V4L2_ENC_CMD_STOP       (1)
#define V4L2_ENC_CMD_PAUSE      (2)
#define V4L2_ENC_CMD_RESUME     (3)

/* Flags for V4L2_ENC_CMD_STOP */
#define V4L2_ENC_CMD_STOP_AT_GOP_END    (1 << 0)

struct v4l2_encoder_cmd {
      __u32 cmd;
      __u32 flags;
      union {
            struct {
                  __u32 data[8];
            } raw;
      };
};

#endif


/*
 *    D A T A   S E R V I C E S   ( V B I )
 *
 *    Data services API by Michael Schimek
 */

/* Raw VBI */
struct v4l2_vbi_format
{
      __u32 sampling_rate;          /* in 1 Hz */
      __u32 offset;
      __u32 samples_per_line;
      __u32 sample_format;          /* V4L2_PIX_FMT_* */
      __s32 start[2];
      __u32 count[2];
      __u32 flags;                  /* V4L2_VBI_* */
      __u32 reserved[2];            /* must be zero */
};

/*  VBI flags  */
#define V4L2_VBI_UNSYNC       (1<< 0)
#define V4L2_VBI_INTERLACED   (1<< 1)

/* Sliced VBI
 *
 *    This implements is a proposal V4L2 API to allow SLICED VBI
 * required for some hardware encoders. It should change without
 * notice in the definitive implementation.
 */

struct v4l2_sliced_vbi_format
{
      __u16   service_set;
      /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
         service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
                         (equals frame lines 313-336 for 625 line video
                          standards, 263-286 for 525 line standards) */
      __u16   service_lines[2][24];
      __u32   io_size;
      __u32   reserved[2];            /* must be zero */
};

/* Teletext World System Teletext
   (WST), defined on ITU-R BT.653-2 */
#define V4L2_SLICED_TELETEXT_B          (0x0001)
/* Video Program System, defined on ETS 300 231*/
#define V4L2_SLICED_VPS                 (0x0400)
/* Closed Caption, defined on EIA-608 */
#define V4L2_SLICED_CAPTION_525         (0x1000)
/* Wide Screen System, defined on ITU-R BT1119.1 */
#define V4L2_SLICED_WSS_625             (0x4000)

#define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
#define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)

struct v4l2_sliced_vbi_cap
{
      __u16   service_set;
      /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field
         service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field
                         (equals frame lines 313-336 for 625 line video
                          standards, 263-286 for 525 line standards) */
      __u16   service_lines[2][24];
      enum v4l2_buf_type type;
      __u32   reserved[3];    /* must be 0 */
};

struct v4l2_sliced_vbi_data
{
      __u32   id;
      __u32   field;          /* 0: first field, 1: second field */
      __u32   line;           /* 1-23 */
      __u32   reserved;       /* must be 0 */
      __u8    data[48];
};

/*
 *    A G G R E G A T E   S T R U C T U R E S
 */

/*    Stream data format
 */
struct v4l2_format
{
      enum v4l2_buf_type type;
      union
      {
            struct v4l2_pix_format        pix;     // V4L2_BUF_TYPE_VIDEO_CAPTURE
            struct v4l2_window            win;     // V4L2_BUF_TYPE_VIDEO_OVERLAY
            struct v4l2_vbi_format        vbi;     // V4L2_BUF_TYPE_VBI_CAPTURE
            struct v4l2_sliced_vbi_format sliced;  // V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
            __u8  raw_data[200];                   // user-defined
      } fmt;
};


/*    Stream type-dependent parameters
 */
struct v4l2_streamparm
{
      enum v4l2_buf_type type;
      union
      {
            struct v4l2_captureparm capture;
            struct v4l2_outputparm  output;
            __u8  raw_data[200];  /* user-defined */
      } parm;
};

/*
 *    A D V A N C E D   D E B U G G I N G
 *
 *    NOTE: EXPERIMENTAL API
 */

/* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */

#define V4L2_CHIP_MATCH_HOST       0  /* Match against chip ID on host (0 for the host) */
#define V4L2_CHIP_MATCH_I2C_DRIVER 1  /* Match against I2C driver ID */
#define V4L2_CHIP_MATCH_I2C_ADDR   2  /* Match against I2C 7-bit address */

struct v4l2_register {
      __u32 match_type; /* Match type */
      __u32 match_chip; /* Match this chip, meaning determined by match_type */
      __u64 reg;
      __u64 val;
};

/* VIDIOC_G_CHIP_IDENT */
struct v4l2_chip_ident {
      __u32 match_type;  /* Match type */
      __u32 match_chip;  /* Match this chip, meaning determined by match_type */
      __u32 ident;       /* chip identifier as specified in <media/v4l2-chip-ident.h> */
      __u32 revision;    /* chip revision, chip specific */
};

/*
 *    I O C T L   C O D E S   F O R   V I D E O   D E V I C E S
 *
 */
#define VIDIOC_QUERYCAP       _IOR  ('V',  0, struct v4l2_capability)
#define VIDIOC_RESERVED       _IO   ('V',  1)
#define VIDIOC_ENUM_FMT         _IOWR ('V',  2, struct v4l2_fmtdesc)
#define VIDIOC_G_FMT          _IOWR ('V',  4, struct v4l2_format)
#define VIDIOC_S_FMT          _IOWR ('V',  5, struct v4l2_format)
#define VIDIOC_REQBUFS        _IOWR ('V',  8, struct v4l2_requestbuffers)
#define VIDIOC_QUERYBUF       _IOWR ('V',  9, struct v4l2_buffer)
#define VIDIOC_G_FBUF         _IOR  ('V', 10, struct v4l2_framebuffer)
#define VIDIOC_S_FBUF         _IOW  ('V', 11, struct v4l2_framebuffer)
#define VIDIOC_OVERLAY        _IOW  ('V', 14, int)
#define VIDIOC_QBUF           _IOWR ('V', 15, struct v4l2_buffer)
#define VIDIOC_DQBUF          _IOWR ('V', 17, struct v4l2_buffer)
#define VIDIOC_STREAMON       _IOW  ('V', 18, int)
#define VIDIOC_STREAMOFF      _IOW  ('V', 19, int)
#define VIDIOC_G_PARM         _IOWR ('V', 21, struct v4l2_streamparm)
#define VIDIOC_S_PARM         _IOWR ('V', 22, struct v4l2_streamparm)
#define VIDIOC_G_STD          _IOR  ('V', 23, v4l2_std_id)
#define VIDIOC_S_STD          _IOW  ('V', 24, v4l2_std_id)
#define VIDIOC_ENUMSTD        _IOWR ('V', 25, struct v4l2_standard)
#define VIDIOC_ENUMINPUT      _IOWR ('V', 26, struct v4l2_input)
#define VIDIOC_G_CTRL         _IOWR ('V', 27, struct v4l2_control)
#define VIDIOC_S_CTRL         _IOWR ('V', 28, struct v4l2_control)
#define VIDIOC_G_TUNER        _IOWR ('V', 29, struct v4l2_tuner)
#define VIDIOC_S_TUNER        _IOW  ('V', 30, struct v4l2_tuner)
#define VIDIOC_G_AUDIO        _IOR  ('V', 33, struct v4l2_audio)
#define VIDIOC_S_AUDIO        _IOW  ('V', 34, struct v4l2_audio)
#define VIDIOC_QUERYCTRL      _IOWR ('V', 36, struct v4l2_queryctrl)
#define VIDIOC_QUERYMENU      _IOWR ('V', 37, struct v4l2_querymenu)
#define VIDIOC_G_INPUT        _IOR  ('V', 38, int)
#define VIDIOC_S_INPUT        _IOWR ('V', 39, int)
#define VIDIOC_G_OUTPUT       _IOR  ('V', 46, int)
#define VIDIOC_S_OUTPUT       _IOWR ('V', 47, int)
#define VIDIOC_ENUMOUTPUT     _IOWR ('V', 48, struct v4l2_output)
#define VIDIOC_G_AUDOUT       _IOR  ('V', 49, struct v4l2_audioout)
#define VIDIOC_S_AUDOUT       _IOW  ('V', 50, struct v4l2_audioout)
#define VIDIOC_G_MODULATOR    _IOWR ('V', 54, struct v4l2_modulator)
#define VIDIOC_S_MODULATOR    _IOW  ('V', 55, struct v4l2_modulator)
#define VIDIOC_G_FREQUENCY    _IOWR ('V', 56, struct v4l2_frequency)
#define VIDIOC_S_FREQUENCY    _IOW  ('V', 57, struct v4l2_frequency)
#define VIDIOC_CROPCAP        _IOWR ('V', 58, struct v4l2_cropcap)
#define VIDIOC_G_CROP         _IOWR ('V', 59, struct v4l2_crop)
#define VIDIOC_S_CROP         _IOW  ('V', 60, struct v4l2_crop)
#define VIDIOC_G_JPEGCOMP     _IOR  ('V', 61, struct v4l2_jpegcompression)
#define VIDIOC_S_JPEGCOMP     _IOW  ('V', 62, struct v4l2_jpegcompression)
#define VIDIOC_QUERYSTD       _IOR  ('V', 63, v4l2_std_id)
#define VIDIOC_TRY_FMT        _IOWR ('V', 64, struct v4l2_format)
#define VIDIOC_ENUMAUDIO      _IOWR ('V', 65, struct v4l2_audio)
#define VIDIOC_ENUMAUDOUT     _IOWR ('V', 66, struct v4l2_audioout)
#define VIDIOC_G_PRIORITY       _IOR  ('V', 67, enum v4l2_priority)
#define VIDIOC_S_PRIORITY       _IOW  ('V', 68, enum v4l2_priority)
#define VIDIOC_G_SLICED_VBI_CAP _IOWR ('V', 69, struct v4l2_sliced_vbi_cap)
#define VIDIOC_LOG_STATUS       _IO   ('V', 70)
#define VIDIOC_G_EXT_CTRLS    _IOWR ('V', 71, struct v4l2_ext_controls)
#define VIDIOC_S_EXT_CTRLS    _IOWR ('V', 72, struct v4l2_ext_controls)
#define VIDIOC_TRY_EXT_CTRLS  _IOWR ('V', 73, struct v4l2_ext_controls)
#if 1
#define VIDIOC_ENUM_FRAMESIZES      _IOWR ('V', 74, struct v4l2_frmsizeenum)
#define VIDIOC_ENUM_FRAMEINTERVALS  _IOWR ('V', 75, struct v4l2_frmivalenum)
#define VIDIOC_G_ENC_INDEX      _IOR  ('V', 76, struct v4l2_enc_idx)
#define VIDIOC_ENCODER_CMD      _IOWR ('V', 77, struct v4l2_encoder_cmd)
#define VIDIOC_TRY_ENCODER_CMD  _IOWR ('V', 78, struct v4l2_encoder_cmd)

/* Experimental, only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
#define     VIDIOC_DBG_S_REGISTER   _IOW  ('V', 79, struct v4l2_register)
#define     VIDIOC_DBG_G_REGISTER   _IOWR ('V', 80, struct v4l2_register)

#define VIDIOC_G_CHIP_IDENT     _IOWR ('V', 81, struct v4l2_chip_ident)
#endif

#ifdef __OLD_VIDIOC_
/* for compatibility, will go away some day */
#define VIDIOC_OVERLAY_OLD          _IOWR ('V', 14, int)
#define VIDIOC_S_PARM_OLD           _IOW  ('V', 22, struct v4l2_streamparm)
#define VIDIOC_S_CTRL_OLD           _IOW  ('V', 28, struct v4l2_control)
#define VIDIOC_G_AUDIO_OLD          _IOWR ('V', 33, struct v4l2_audio)
#define VIDIOC_G_AUDOUT_OLD         _IOWR ('V', 49, struct v4l2_audioout)
#define VIDIOC_CROPCAP_OLD          _IOR  ('V', 58, struct v4l2_cropcap)
#endif

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

#endif /* __LINUX_VIDEODEV2_H */

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

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