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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>Appendix B. Video For Linux Two Header File</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API" /><link rel="up" href="pt01.html" title="Part I. Video for Linux Two API Specification" /><link rel="prev" href="re68.html" title="V4L2 write()" /><link rel="next" href="apc.html" title="Appendix C. Video Capture Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Appendix B. Video For Linux Two Header File</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re68.html">Prev</a> </td><th width="60%" align="center">Part I. Video for Linux Two API Specification</th><td width="20%" align="right"> <a accesskey="n" href="apc.html">Next</a></td></tr></table><hr /></div><div class="appendix" title="Appendix B. Video For Linux Two Header File"><div class="titlepage"><div><div><h2 class="title"><a id="videodev"></a>Appendix B. Video For Linux Two Header File</h2></div></div></div><pre class="programlisting">
/*
* 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 */
#else
#include <sys/time.h>
#endif
#include <linux/compiler.h>
#include <linux/ioctl.h>
#include <linux/types.h>
/*
* Common stuff for both V4L1 and V4L2
* Moved from videodev.h
*/
#define VIDEO_MAX_FRAME 32
#ifndef __KERNEL__
/* These defines are V4L1 specific and should not be used with the V4L2 API!
They will be removed from this header in the future. */
#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 */
#endif
/*
* 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) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
/*
* E N U M S
*/
enum <a class="link" href="ch03s06.html#v4l2-field" title="Table 3.8. enum v4l2_field">v4l2_field</a> {
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 <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> {
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 /*KEEP*/
/* Experimental */
V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
#endif
V4L2_BUF_TYPE_PRIVATE = 0x80,
};
enum <a class="link" href="re57.html#v4l2-ctrl-type" title="Table A.70. enum v4l2_ctrl_type">v4l2_ctrl_type</a> {
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,
V4L2_CTRL_TYPE_STRING = 7,
};
enum <a class="link" href="re51.html#v4l2-tuner-type" title="Table A.61. enum v4l2_tuner_type">v4l2_tuner_type</a> {
V4L2_TUNER_RADIO = 1,
V4L2_TUNER_ANALOG_TV = 2,
V4L2_TUNER_DIGITAL_TV = 3,
};
enum <a class="link" href="ch03s05.html#v4l2-memory" title="Table 3.4. enum v4l2_memory">v4l2_memory</a> {
V4L2_MEMORY_MMAP = 1,
V4L2_MEMORY_USERPTR = 2,
V4L2_MEMORY_OVERLAY = 3,
};
/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum <a class="link" href="ch02s02.html#v4l2-colorspace" title="Table 2.2. enum v4l2_colorspace">v4l2_colorspace</a> {
/* 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 <a class="link" href="re48.html#v4l2-priority" title="Table A.57. enum v4l2_priority">v4l2_priority</a> {
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 <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> {
__s32 left;
__s32 top;
__s32 width;
__s32 height;
};
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> {
__u32 numerator;
__u32 denominator;
};
/*
* D R I V E R C A P A B I L I T I E S
*/
struct <a class="link" href="re56.html#v4l2-capability" title="Table A.66. struct v4l2_capability">v4l2_capability</a> {
__u8 driver[16]; /* i.e.ie; "bttv" */
__u8 card[32]; /* i.e.ie; "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_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */
#define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */
#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_MODULATOR 0x00080000 /* has a modulator */
#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 <a class="link" href="ch02.html#v4l2-pix-format" title="Table 2.1. struct v4l2_pix_format">v4l2_pix_format</a> {
__u32 width;
__u32 height;
__u32 pixelformat;
enum <a class="link" href="ch03s06.html#v4l2-field" title="Table 3.8. enum v4l2_field">v4l2_field</a> field;
__u32 bytesperline; /* for padding, zero if unused */
__u32 sizeimage;
enum <a class="link" href="ch02s02.html#v4l2-colorspace" title="Table 2.2. enum v4l2_colorspace">v4l2_colorspace</a> colorspace;
__u32 priv; /* private data, depends on pixelformat */
};
/* Pixel format FOURCC depth Description */
/* RGB formats */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB332">V4L2_PIX_FMT_RGB332</a> v4l2_fourcc('R', 'G', 'B', '1') /* 8 RGB-3-3-2 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB444">V4L2_PIX_FMT_RGB444</a> v4l2_fourcc('R', '4', '4', '4') /* 16 xxxxrrrr ggggbbbb */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB555">V4L2_PIX_FMT_RGB555</a> v4l2_fourcc('R', 'G', 'B', 'O') /* 16 RGB-5-5-5 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB565">V4L2_PIX_FMT_RGB565</a> v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB555X">V4L2_PIX_FMT_RGB555X</a> v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB565X">V4L2_PIX_FMT_RGB565X</a> v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-BGR24">V4L2_PIX_FMT_BGR24</a> v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB24">V4L2_PIX_FMT_RGB24</a> v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-BGR32">V4L2_PIX_FMT_BGR32</a> v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */
#define <a class="link" href="re01.html#V4L2-PIX-FMT-RGB32">V4L2_PIX_FMT_RGB32</a> v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */
/* Grey formats */
#define <a class="link" href="re07.html" title="V4L2_PIX_FMT_GREY ('GREY')">V4L2_PIX_FMT_GREY</a> v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
#define <a class="link" href="re08.html" title="V4L2_PIX_FMT_Y16 ('Y16 ')">V4L2_PIX_FMT_Y16</a> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
/* Palette formats */
#define <a class="link" href="ch02s03.html#V4L2-PIX-FMT-PAL8">V4L2_PIX_FMT_PAL8</a> v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
/* Luminance+Chrominance formats */
#define <a class="link" href="re15.html#V4L2-PIX-FMT-YVU410">V4L2_PIX_FMT_YVU410</a> v4l2_fourcc('Y', 'V', 'U', '9') /* 9 YVU 4:1:0 */
#define <a class="link" href="re14.html#V4L2-PIX-FMT-YVU420">V4L2_PIX_FMT_YVU420</a> v4l2_fourcc('Y', 'V', '1', '2') /* 12 YVU 4:2:0 */
#define <a class="link" href="re09.html" title="V4L2_PIX_FMT_YUYV ('YUYV')">V4L2_PIX_FMT_YUYV</a> v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16 YUV 4:2:2 */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-YYUV">V4L2_PIX_FMT_YYUV</a> v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16 YUV 4:2:2 */
#define <a class="link" href="re11.html" title="V4L2_PIX_FMT_YVYU ('YVYU')">V4L2_PIX_FMT_YVYU</a> v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
#define <a class="link" href="re10.html" title="V4L2_PIX_FMT_UYVY ('UYVY')">V4L2_PIX_FMT_UYVY</a> v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16 YUV 4:2:2 */
#define <a class="link" href="re12.html" title="V4L2_PIX_FMT_VYUY ('VYUY')">V4L2_PIX_FMT_VYUY</a> v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */
#define <a class="link" href="re16.html" title="V4L2_PIX_FMT_YUV422P ('422P')">V4L2_PIX_FMT_YUV422P</a> v4l2_fourcc('4', '2', '2', 'P') /* 16 YVU422 planar */
#define <a class="link" href="re17.html" title="V4L2_PIX_FMT_YUV411P ('411P')">V4L2_PIX_FMT_YUV411P</a> v4l2_fourcc('4', '1', '1', 'P') /* 16 YVU411 planar */
#define <a class="link" href="re13.html" title="V4L2_PIX_FMT_Y41P ('Y41P')">V4L2_PIX_FMT_Y41P</a> v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */
#define <a class="link" href="re06.html#V4L2-PIX-FMT-YUV444">V4L2_PIX_FMT_YUV444</a> v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */
#define <a class="link" href="re06.html#V4L2-PIX-FMT-YUV555">V4L2_PIX_FMT_YUV555</a> v4l2_fourcc('Y', 'U', 'V', 'O') /* 16 YUV-5-5-5 */
#define <a class="link" href="re06.html#V4L2-PIX-FMT-YUV565">V4L2_PIX_FMT_YUV565</a> v4l2_fourcc('Y', 'U', 'V', 'P') /* 16 YUV-5-6-5 */
#define <a class="link" href="re06.html#V4L2-PIX-FMT-YUV32">V4L2_PIX_FMT_YUV32</a> v4l2_fourcc('Y', 'U', 'V', '4') /* 32 YUV-8-8-8-8 */
#define <a class="link" href="re15.html#V4L2-PIX-FMT-YUV410">V4L2_PIX_FMT_YUV410</a> v4l2_fourcc('Y', 'U', 'V', '9') /* 9 YUV 4:1:0 */
#define <a class="link" href="re14.html#V4L2-PIX-FMT-YUV420">V4L2_PIX_FMT_YUV420</a> v4l2_fourcc('Y', 'U', '1', '2') /* 12 YUV 4:2:0 */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-HI240">V4L2_PIX_FMT_HI240</a> v4l2_fourcc('H', 'I', '2', '4') /* 8 8-bit color */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-HM12">V4L2_PIX_FMT_HM12</a> v4l2_fourcc('H', 'M', '1', '2') /* 8 YUV 4:2:0 16x16 macroblocks */
/* two planes -- one Y, one Cr + Cb interleaved */
#define <a class="link" href="re18.html#V4L2-PIX-FMT-NV12">V4L2_PIX_FMT_NV12</a> v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */
#define <a class="link" href="re18.html#V4L2-PIX-FMT-NV21">V4L2_PIX_FMT_NV21</a> v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */
#define <a class="link" href="re19.html#V4L2-PIX-FMT-NV16">V4L2_PIX_FMT_NV16</a> v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */
#define <a class="link" href="re19.html#V4L2-PIX-FMT-NV61">V4L2_PIX_FMT_NV61</a> v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */
/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define <a class="link" href="re02.html" title="V4L2_PIX_FMT_SBGGR8 ('BA81')">V4L2_PIX_FMT_SBGGR8</a> v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */
#define <a class="link" href="re03.html" title="V4L2_PIX_FMT_SGBRG8 ('GBRG')">V4L2_PIX_FMT_SGBRG8</a> v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
#define <a class="link" href="re04.html" title="V4L2_PIX_FMT_SGRBG8 ('GRBG')">V4L2_PIX_FMT_SGRBG8</a> v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SGRBG10">V4L2_PIX_FMT_SGRBG10</a> v4l2_fourcc('B', 'A', '1', '0') /* 10bit raw bayer */
/* 10bit raw bayer DPCM compressed to 8 bits */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SGRBG10DPCM8">V4L2_PIX_FMT_SGRBG10DPCM8</a> v4l2_fourcc('B', 'D', '1', '0')
/*
* 10bit raw bayer, expanded to 16 bits
* xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb...
*/
#define <a class="link" href="re05.html" title="V4L2_PIX_FMT_SBGGR16 ('BYR2')">V4L2_PIX_FMT_SBGGR16</a> v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
/* compressed formats */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-MJPEG">V4L2_PIX_FMT_MJPEG</a> v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */
#define <a class="link" href="ch02s06.html#V4L2-PIX-FMT-JPEG">V4L2_PIX_FMT_JPEG</a> v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-DV">V4L2_PIX_FMT_DV</a> v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */
#define <a class="link" href="ch02s06.html#V4L2-PIX-FMT-MPEG">V4L2_PIX_FMT_MPEG</a> v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 */
/* Vendor-specific formats */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-WNVA">V4L2_PIX_FMT_WNVA</a> v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SN9C10X">V4L2_PIX_FMT_SN9C10X</a> v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SN9C20X-I420">V4L2_PIX_FMT_SN9C20X_I420</a> v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-PWC1">V4L2_PIX_FMT_PWC1</a> v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-PWC2">V4L2_PIX_FMT_PWC2</a> v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-ET61X251">V4L2_PIX_FMT_ET61X251</a> v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SPCA501">V4L2_PIX_FMT_SPCA501</a> v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SPCA505">V4L2_PIX_FMT_SPCA505</a> v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SPCA508">V4L2_PIX_FMT_SPCA508</a> v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SPCA561">V4L2_PIX_FMT_SPCA561</a> v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-PAC207">V4L2_PIX_FMT_PAC207</a> v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-MR97310A">V4L2_PIX_FMT_MR97310A</a> v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-SQ905C">V4L2_PIX_FMT_SQ905C</a> v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-PJPG">V4L2_PIX_FMT_PJPG</a> v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-OV511">V4L2_PIX_FMT_OV511</a> v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-OV518">V4L2_PIX_FMT_OV518</a> v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
#define <a class="link" href="ch02s07.html#V4L2-PIX-FMT-TM6000">V4L2_PIX_FMT_TM6000</a> v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
/*
* F O R M A T E N U M E R A T I O N
*/
struct <a class="link" href="re28.html#v4l2-fmtdesc" title="Table A.13. struct v4l2_fmtdesc">v4l2_fmtdesc</a> {
__u32 index; /* Format number */
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type; /* buffer type */
__u32 flags;
__u8 description[32]; /* Description string */
__u32 pixelformat; /* Format fourcc */
__u32 reserved[4];
};
#define V4L2_FMT_FLAG_COMPRESSED 0x0001
#define V4L2_FMT_FLAG_EMULATED 0x0002
#if 1 /*KEEP*/
/* 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 <a class="link" href="re29.html#v4l2-frmsizetypes" title="Table A.18. enum v4l2_frmsizetypes">v4l2_frmsizetypes</a> {
V4L2_FRMSIZE_TYPE_DISCRETE = 1,
V4L2_FRMSIZE_TYPE_CONTINUOUS = 2,
V4L2_FRMSIZE_TYPE_STEPWISE = 3,
};
struct <a class="link" href="re29.html#v4l2-frmsize-discrete" title="Table A.15. struct v4l2_frmsize_discrete">v4l2_frmsize_discrete</a> {
__u32 width; /* Frame width [pixel] */
__u32 height; /* Frame height [pixel] */
};
struct <a class="link" href="re29.html#v4l2-frmsize-stepwise" title="Table A.16. struct v4l2_frmsize_stepwise">v4l2_frmsize_stepwise</a> {
__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 <a class="link" href="re29.html#v4l2-frmsizeenum" title="Table A.17. struct v4l2_frmsizeenum">v4l2_frmsizeenum</a> {
__u32 index; /* Frame size number */
__u32 pixel_format; /* Pixel format */
__u32 type; /* Frame size type the device supports. */
union { /* Frame size */
struct <a class="link" href="re29.html#v4l2-frmsize-discrete" title="Table A.15. struct v4l2_frmsize_discrete">v4l2_frmsize_discrete</a> discrete;
struct <a class="link" href="re29.html#v4l2-frmsize-stepwise" title="Table A.16. struct v4l2_frmsize_stepwise">v4l2_frmsize_stepwise</a> 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 <a class="link" href="re30.html#v4l2-frmivaltypes" title="Table A.21. enum v4l2_frmivaltypes">v4l2_frmivaltypes</a> {
V4L2_FRMIVAL_TYPE_DISCRETE = 1,
V4L2_FRMIVAL_TYPE_CONTINUOUS = 2,
V4L2_FRMIVAL_TYPE_STEPWISE = 3,
};
struct <a class="link" href="re30.html#v4l2-frmival-stepwise" title="Table A.19. struct v4l2_frmival_stepwise">v4l2_frmival_stepwise</a> {
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> min; /* Minimum frame interval [s] */
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> max; /* Maximum frame interval [s] */
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> step; /* Frame interval step size [s] */
};
struct <a class="link" href="re30.html#v4l2-frmivalenum" title="Table A.20. struct v4l2_frmivalenum">v4l2_frmivalenum</a> {
__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 <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> discrete;
struct <a class="link" href="re30.html#v4l2-frmival-stepwise" title="Table A.19. struct v4l2_frmival_stepwise">v4l2_frmival_stepwise</a> stepwise;
};
__u32 reserved[2]; /* Reserved space for future use */
};
#endif
/*
* T I M E C O D E
*/
struct <a class="link" href="ch03s05.html#v4l2-timecode" title="Table 3.5. struct v4l2_timecode">v4l2_timecode</a> {
__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 <a class="link" href="re44.html#v4l2-jpegcompression" title="Table A.48. struct v4l2_jpegcompression">v4l2_jpegcompression</a> {
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 <a class="link" href="re59.html#v4l2-requestbuffers" title="Table A.72. struct v4l2_requestbuffers">v4l2_requestbuffers</a> {
__u32 count;
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
enum <a class="link" href="ch03s05.html#v4l2-memory" title="Table 3.4. enum v4l2_memory">v4l2_memory</a> memory;
__u32 reserved[2];
};
struct <a class="link" href="ch03s05.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a> {
__u32 index;
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
__u32 bytesused;
__u32 flags;
enum <a class="link" href="ch03s06.html#v4l2-field" title="Table 3.8. enum v4l2_field">v4l2_field</a> field;
struct timeval timestamp;
struct <a class="link" href="ch03s05.html#v4l2-timecode" title="Table 3.5. struct v4l2_timecode">v4l2_timecode</a> timecode;
__u32 sequence;
/* memory location */
enum <a class="link" href="ch03s05.html#v4l2-memory" title="Table 3.4. enum v4l2_memory">v4l2_memory</a> 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 <a class="link" href="re40.html#v4l2-framebuffer" title="Table A.43. struct v4l2_framebuffer">v4l2_framebuffer</a> {
__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 <a class="link" href="ch02.html#v4l2-pix-format" title="Table 2.1. struct v4l2_pix_format">v4l2_pix_format</a> 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 <a class="link" href="ch04s02.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> {
struct <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> c;
struct <a class="link" href="ch04s02.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> __user *next;
};
struct <a class="link" href="ch04s02.html#v4l2-window" title="Table 4.1. struct v4l2_window">v4l2_window</a> {
struct <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> w;
enum <a class="link" href="ch03s06.html#v4l2-field" title="Table 3.8. enum v4l2_field">v4l2_field</a> field;
__u32 chromakey;
struct <a class="link" href="ch04s02.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> __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 <a class="link" href="re47.html#v4l2-captureparm" title="Table A.53. struct v4l2_captureparm">v4l2_captureparm</a> {
__u32 capability; /* Supported modes */
__u32 capturemode; /* Current mode */
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> 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 <a class="link" href="re47.html#v4l2-outputparm" title="Table A.54. struct v4l2_outputparm">v4l2_outputparm</a> {
__u32 capability; /* Supported modes */
__u32 outputmode; /* Current mode */
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> 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 <a class="link" href="re22.html#v4l2-cropcap" title="Table A.1. struct v4l2_cropcap">v4l2_cropcap</a> {
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
struct <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> bounds;
struct <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> defrect;
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> pixelaspect;
};
struct <a class="link" href="re36.html#v4l2-crop" title="Table A.35. struct v4l2_crop">v4l2_crop</a> {
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
struct <a class="link" href="ch04s02.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> 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 <a class="link" href="re33.html#v4l2-standard" title="Table A.27. struct v4l2_standard">v4l2_standard</a> {
__u32 index;
v4l2_std_id id;
__u8 name[24];
struct <a class="link" href="re33.html#v4l2-fract" title="Table A.28. struct v4l2_fract">v4l2_fract</a> frameperiod; /* Frames, not fields */
__u32 framelines;
__u32 reserved[4];
};
/*
* V I D E O I N P U T S
*/
struct <a class="link" href="re31.html#v4l2-input" title="Table A.22. struct v4l2_input">v4l2_input</a> {
__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' - sensor orientation */
/* If sensor is mounted upside down set both bits */
#define V4L2_IN_ST_HFLIP 0x00000010 /* Frames are flipped horizontally */
#define V4L2_IN_ST_VFLIP 0x00000020 /* Frames are flipped vertically */
/* 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 <a class="link" href="re32.html#v4l2-output" title="Table A.25. struct v4l2_output">v4l2_output</a> {
__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 <a class="link" href="re37.html#v4l2-control" title="Table A.36. struct v4l2_control">v4l2_control</a> {
__u32 id;
__s32 value;
};
struct <a class="link" href="re39.html#v4l2-ext-control" title="Table A.40. struct v4l2_ext_control">v4l2_ext_control</a> {
__u32 id;
__u32 size;
__u32 reserved2[1];
union {
__s32 value;
__s64 value64;
char *string;
};
} __attribute__ ((packed));
struct <a class="link" href="re39.html#v4l2-ext-controls" title="Table A.41. struct v4l2_ext_controls">v4l2_ext_controls</a> {
__u32 ctrl_class;
__u32 count;
__u32 error_idx;
__u32 reserved[2];
struct <a class="link" href="re39.html#v4l2-ext-control" title="Table A.40. struct v4l2_ext_control">v4l2_ext_control</a> *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_CLASS_CAMERA 0x009a0000 /* Camera class controls */
#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator control class */
#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 <a class="link" href="re57.html#v4l2-queryctrl" title="Table A.68. struct v4l2_queryctrl">v4l2_queryctrl</a> {
__u32 id;
enum <a class="link" href="re57.html#v4l2-ctrl-type" title="Table A.70. enum v4l2_ctrl_type">v4l2_ctrl_type</a> 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 <a class="link" href="re57.html#v4l2-querymenu" title="Table A.69. struct v4l2_querymenu">v4l2_querymenu</a> {
__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
#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040
/* 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) /* Deprecated */
#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) /* Deprecated */
#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)
/* Deprecated; use V4L2_CID_PAN_RESET and V4L2_CID_TILT_RESET */
#define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
#define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
#define V4L2_CID_POWER_LINE_FREQUENCY (V4L2_CID_BASE+24)
enum <a class="link" href="ch01s08.html#v4l2-power-line-frequency">v4l2_power_line_frequency</a> {
V4L2_CID_POWER_LINE_FREQUENCY_DISABLED = 0,
V4L2_CID_POWER_LINE_FREQUENCY_50HZ = 1,
V4L2_CID_POWER_LINE_FREQUENCY_60HZ = 2,
};
#define V4L2_CID_HUE_AUTO (V4L2_CID_BASE+25)
#define V4L2_CID_WHITE_BALANCE_TEMPERATURE (V4L2_CID_BASE+26)
#define V4L2_CID_SHARPNESS (V4L2_CID_BASE+27)
#define V4L2_CID_BACKLIGHT_COMPENSATION (V4L2_CID_BASE+28)
#define V4L2_CID_CHROMA_AGC (V4L2_CID_BASE+29)
#define V4L2_CID_COLOR_KILLER (V4L2_CID_BASE+30)
#define V4L2_CID_COLORFX (V4L2_CID_BASE+31)
enum <a class="link" href="ch01s08.html#v4l2-colorfx">v4l2_colorfx</a> {
V4L2_COLORFX_NONE = 0,
V4L2_COLORFX_BW = 1,
V4L2_COLORFX_SEPIA = 2,
};
#define V4L2_CID_AUTOBRIGHTNESS (V4L2_CID_BASE+32)
#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
/* last CID + 1 */
#define V4L2_CID_LASTP1 (V4L2_CID_BASE+34)
/* 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 <a class="link" href="ch01s09.html#v4l2-mpeg-stream-type">v4l2_mpeg_stream_type</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-stream-vbi-fmt">v4l2_mpeg_stream_vbi_fmt</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-sampling-freq">v4l2_mpeg_audio_sampling_freq</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-encoding">v4l2_mpeg_audio_encoding</a> {
V4L2_MPEG_AUDIO_ENCODING_LAYER_1 = 0,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2 = 1,
V4L2_MPEG_AUDIO_ENCODING_LAYER_3 = 2,
V4L2_MPEG_AUDIO_ENCODING_AAC = 3,
V4L2_MPEG_AUDIO_ENCODING_AC3 = 4,
};
#define V4L2_CID_MPEG_AUDIO_L1_BITRATE (V4L2_CID_MPEG_BASE+102)
enum <a class="link" href="ch01s09.html#v4l2-mpeg-audio-l1-bitrate">v4l2_mpeg_audio_l1_bitrate</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-l2-bitrate">v4l2_mpeg_audio_l2_bitrate</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-l3-bitrate">v4l2_mpeg_audio_l3_bitrate</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-mode">v4l2_mpeg_audio_mode</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-mode-extension">v4l2_mpeg_audio_mode_extension</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-emphasis">v4l2_mpeg_audio_emphasis</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-audio-crc">v4l2_mpeg_audio_crc</a> {
V4L2_MPEG_AUDIO_CRC_NONE = 0,
V4L2_MPEG_AUDIO_CRC_CRC16 = 1,
};
#define V4L2_CID_MPEG_AUDIO_MUTE (V4L2_CID_MPEG_BASE+109)
#define V4L2_CID_MPEG_AUDIO_AAC_BITRATE (V4L2_CID_MPEG_BASE+110)
#define V4L2_CID_MPEG_AUDIO_AC3_BITRATE (V4L2_CID_MPEG_BASE+111)
enum <a class="link" href="ch01s09.html#v4l2-mpeg-audio-ac3-bitrate">v4l2_mpeg_audio_ac3_bitrate</a> {
V4L2_MPEG_AUDIO_AC3_BITRATE_32K = 0,
V4L2_MPEG_AUDIO_AC3_BITRATE_40K = 1,
V4L2_MPEG_AUDIO_AC3_BITRATE_48K = 2,
V4L2_MPEG_AUDIO_AC3_BITRATE_56K = 3,
V4L2_MPEG_AUDIO_AC3_BITRATE_64K = 4,
V4L2_MPEG_AUDIO_AC3_BITRATE_80K = 5,
V4L2_MPEG_AUDIO_AC3_BITRATE_96K = 6,
V4L2_MPEG_AUDIO_AC3_BITRATE_112K = 7,
V4L2_MPEG_AUDIO_AC3_BITRATE_128K = 8,
V4L2_MPEG_AUDIO_AC3_BITRATE_160K = 9,
V4L2_MPEG_AUDIO_AC3_BITRATE_192K = 10,
V4L2_MPEG_AUDIO_AC3_BITRATE_224K = 11,
V4L2_MPEG_AUDIO_AC3_BITRATE_256K = 12,
V4L2_MPEG_AUDIO_AC3_BITRATE_320K = 13,
V4L2_MPEG_AUDIO_AC3_BITRATE_384K = 14,
V4L2_MPEG_AUDIO_AC3_BITRATE_448K = 15,
V4L2_MPEG_AUDIO_AC3_BITRATE_512K = 16,
V4L2_MPEG_AUDIO_AC3_BITRATE_576K = 17,
V4L2_MPEG_AUDIO_AC3_BITRATE_640K = 18,
};
/* MPEG video */
#define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200)
enum <a class="link" href="ch01s09.html#v4l2-mpeg-video-encoding">v4l2_mpeg_video_encoding</a> {
V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC = 2,
};
#define V4L2_CID_MPEG_VIDEO_ASPECT (V4L2_CID_MPEG_BASE+201)
enum <a class="link" href="ch01s09.html#v4l2-mpeg-video-aspect">v4l2_mpeg_video_aspect</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-video-bitrate-mode">v4l2_mpeg_video_bitrate_mode</a> {
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 CX2341x 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 <a class="link" href="ch01s09.html#v4l2-mpeg-cx2341x-video-spatial-filter-mode">v4l2_mpeg_cx2341x_video_spatial_filter_mode</a> {
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 <a class="link" href="ch01s09.html#luma-spatial-filter-type">v4l2_mpeg_cx2341x_video_luma_spatial_filter_type</a> {
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 <a class="link" href="ch01s09.html#chroma-spatial-filter-type">v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-cx2341x-video-temporal-filter-mode">v4l2_mpeg_cx2341x_video_temporal_filter_mode</a> {
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 <a class="link" href="ch01s09.html#v4l2-mpeg-cx2341x-video-median-filter-type">v4l2_mpeg_cx2341x_video_median_filter_type</a> {
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)
/* Camera class control IDs */
#define V4L2_CID_CAMERA_CLASS_BASE (V4L2_CTRL_CLASS_CAMERA | 0x900)
#define V4L2_CID_CAMERA_CLASS (V4L2_CTRL_CLASS_CAMERA | 1)
#define V4L2_CID_EXPOSURE_AUTO (V4L2_CID_CAMERA_CLASS_BASE+1)
enum <a class="link" href="ch01s09.html#v4l2-exposure-auto-type">v4l2_exposure_auto_type</a> {
V4L2_EXPOSURE_AUTO = 0,
V4L2_EXPOSURE_MANUAL = 1,
V4L2_EXPOSURE_SHUTTER_PRIORITY = 2,
V4L2_EXPOSURE_APERTURE_PRIORITY = 3
};
#define V4L2_CID_EXPOSURE_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+2)
#define V4L2_CID_EXPOSURE_AUTO_PRIORITY (V4L2_CID_CAMERA_CLASS_BASE+3)
#define V4L2_CID_PAN_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+4)
#define V4L2_CID_TILT_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+5)
#define V4L2_CID_PAN_RESET (V4L2_CID_CAMERA_CLASS_BASE+6)
#define V4L2_CID_TILT_RESET (V4L2_CID_CAMERA_CLASS_BASE+7)
#define V4L2_CID_PAN_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+8)
#define V4L2_CID_TILT_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+9)
#define V4L2_CID_FOCUS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+10)
#define V4L2_CID_FOCUS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+11)
#define V4L2_CID_FOCUS_AUTO (V4L2_CID_CAMERA_CLASS_BASE+12)
#define V4L2_CID_ZOOM_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+13)
#define V4L2_CID_ZOOM_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+14)
#define V4L2_CID_ZOOM_CONTINUOUS (V4L2_CID_CAMERA_CLASS_BASE+15)
#define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16)
/* FM Modulator class control IDs */
#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
#define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)
#define V4L2_CID_RDS_TX_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 1)
#define V4L2_CID_RDS_TX_PI (V4L2_CID_FM_TX_CLASS_BASE + 2)
#define V4L2_CID_RDS_TX_PTY (V4L2_CID_FM_TX_CLASS_BASE + 3)
#define V4L2_CID_RDS_TX_PS_NAME (V4L2_CID_FM_TX_CLASS_BASE + 5)
#define V4L2_CID_RDS_TX_RADIO_TEXT (V4L2_CID_FM_TX_CLASS_BASE + 6)
#define V4L2_CID_AUDIO_LIMITER_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 64)
#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 65)
#define V4L2_CID_AUDIO_LIMITER_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 66)
#define V4L2_CID_AUDIO_COMPRESSION_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 80)
#define V4L2_CID_AUDIO_COMPRESSION_GAIN (V4L2_CID_FM_TX_CLASS_BASE + 81)
#define V4L2_CID_AUDIO_COMPRESSION_THRESHOLD (V4L2_CID_FM_TX_CLASS_BASE + 82)
#define V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME (V4L2_CID_FM_TX_CLASS_BASE + 83)
#define V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 84)
#define V4L2_CID_PILOT_TONE_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 96)
#define V4L2_CID_PILOT_TONE_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 97)
#define V4L2_CID_PILOT_TONE_FREQUENCY (V4L2_CID_FM_TX_CLASS_BASE + 98)
#define V4L2_CID_TUNE_PREEMPHASIS (V4L2_CID_FM_TX_CLASS_BASE + 112)
enum <a class="link" href="ch01s09.html#v4l2-preemphasis">v4l2_preemphasis</a> {
V4L2_PREEMPHASIS_DISABLED = 0,
V4L2_PREEMPHASIS_50_uS = 1,
V4L2_PREEMPHASIS_75_uS = 2,
};
#define V4L2_CID_TUNE_POWER_LEVEL (V4L2_CID_FM_TX_CLASS_BASE + 113)
#define V4L2_CID_TUNE_ANTENNA_CAPACITOR (V4L2_CID_FM_TX_CLASS_BASE + 114)
/*
* T U N I N G
*/
struct <a class="link" href="re51.html#v4l2-tuner" title="Table A.60. struct v4l2_tuner">v4l2_tuner</a> {
__u32 index;
__u8 name[32];
enum <a class="link" href="re51.html#v4l2-tuner-type" title="Table A.61. enum v4l2_tuner_type">v4l2_tuner_type</a> type;
__u32 capability;
__u32 rangelow;
__u32 rangehigh;
__u32 rxsubchans;
__u32 audmode;
__s32 signal;
__s32 afc;
__u32 reserved[4];
};
struct <a class="link" href="re45.html#v4l2-modulator" title="Table A.50. struct v4l2_modulator">v4l2_modulator</a> {
__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
#define V4L2_TUNER_CAP_RDS 0x0080
/* 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
#define V4L2_TUNER_SUB_RDS 0x0010
/* 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 <a class="link" href="re42.html#v4l2-frequency" title="Table A.47. struct v4l2_frequency">v4l2_frequency</a> {
__u32 tuner;
enum <a class="link" href="re51.html#v4l2-tuner-type" title="Table A.61. enum v4l2_tuner_type">v4l2_tuner_type</a> type;
__u32 frequency;
__u32 reserved[8];
};
struct <a class="link" href="re60.html#v4l2-hw-freq-seek" title="Table A.73. struct v4l2_hw_freq_seek">v4l2_hw_freq_seek</a> {
__u32 tuner;
enum <a class="link" href="re51.html#v4l2-tuner-type" title="Table A.61. enum v4l2_tuner_type">v4l2_tuner_type</a> type;
__u32 seek_upward;
__u32 wrap_around;
__u32 reserved[8];
};
/*
* R D S
*/
struct <a class="link" href="ch04s11.html#v4l2-rds-data" title="Table 4.15. struct v4l2_rds_data">v4l2_rds_data</a> {
__u8 lsb;
__u8 msb;
__u8 block;
} __attribute__ ((packed));
#define V4L2_RDS_BLOCK_MSK 0x7
#define V4L2_RDS_BLOCK_A 0
#define V4L2_RDS_BLOCK_B 1
#define V4L2_RDS_BLOCK_C 2
#define V4L2_RDS_BLOCK_D 3
#define V4L2_RDS_BLOCK_C_ALT 4
#define V4L2_RDS_BLOCK_INVALID 7
#define V4L2_RDS_BLOCK_CORRECTED 0x40
#define V4L2_RDS_BLOCK_ERROR 0x80
/*
* A U D I O
*/
struct <a class="link" href="re34.html#v4l2-audio" title="Table A.31. struct v4l2_audio">v4l2_audio</a> {
__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 <a class="link" href="re35.html#v4l2-audioout" title="Table A.34. struct v4l2_audioout">v4l2_audioout</a> {
__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 /*KEEP*/
#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 <a class="link" href="re38.html#v4l2-enc-idx-entry" title="Table A.38. struct v4l2_enc_idx_entry">v4l2_enc_idx_entry</a> {
__u64 offset;
__u64 pts;
__u32 length;
__u32 flags;
__u32 reserved[2];
};
#define V4L2_ENC_IDX_ENTRIES (64)
struct <a class="link" href="re38.html#v4l2-enc-idx" title="Table A.37. struct v4l2_enc_idx">v4l2_enc_idx</a> {
__u32 entries;
__u32 entries_cap;
__u32 reserved[4];
struct <a class="link" href="re38.html#v4l2-enc-idx-entry" title="Table A.38. struct v4l2_enc_idx_entry">v4l2_enc_idx_entry</a> 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 <a class="link" href="re25.html#v4l2-encoder-cmd" title="Table A.10. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a> {
__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 <a class="link" href="ch04s07.html#v4l2-vbi-format" title="Table 4.4. struct v4l2_vbi_format">v4l2_vbi_format</a> {
__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 <a class="link" href="ch04s08.html#v4l2-sliced-vbi-format" title="Table 4.6. struct v4l2_sliced_vbi_format">v4l2_sliced_vbi_format</a> {
__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 <a class="link" href="re49.html#v4l2-sliced-vbi-cap" title="Table A.58. struct v4l2_sliced_vbi_cap">v4l2_sliced_vbi_cap</a> {
__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 <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
__u32 reserved[3]; /* must be 0 */
};
struct <a class="link" href="ch04s08.html#v4l2-sliced-vbi-data" title="Table 4.8. struct v4l2_sliced_vbi_data">v4l2_sliced_vbi_data</a> {
__u32 id;
__u32 field; /* 0: first field, 1: second field */
__u32 line; /* 1-23 */
__u32 reserved; /* must be 0 */
__u8 data[48];
};
/*
* Sliced VBI data inserted into MPEG Streams
*/
/*
* V4L2_MPEG_STREAM_VBI_FMT_IVTV:
*
* Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
* MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
* data
*
* Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
* definitions are not included here. See the MPEG-2 specifications for details
* on these headers.
*/
/* Line type IDs */
#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1)
#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4)
#define V4L2_MPEG_VBI_IVTV_WSS_625 (5)
#define V4L2_MPEG_VBI_IVTV_VPS (7)
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> {
__u8 id; /* One of V4L2_MPEG_VBI_IVTV_* above */
__u8 data[42]; /* Sliced VBI data for the line */
} __attribute__ ((packed));
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0" title="Table 4.11. struct v4l2_mpeg_vbi_itv0">v4l2_mpeg_vbi_itv0</a> {
__le32 linemask[2]; /* Bitmasks of VBI service lines present */
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> line[35];
} __attribute__ ((packed));
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0-1" title="Table 4.12. struct v4l2_mpeg_vbi_ITV0">v4l2_mpeg_vbi_ITV0</a> {
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> line[36];
} __attribute__ ((packed));
#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0"
#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0"
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-fmt-ivtv" title="Table 4.9. struct v4l2_mpeg_vbi_fmt_ivtv">v4l2_mpeg_vbi_fmt_ivtv</a> {
__u8 magic[4];
union {
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0" title="Table 4.11. struct v4l2_mpeg_vbi_itv0">v4l2_mpeg_vbi_itv0</a> itv0;
struct <a class="link" href="ch04s08.html#v4l2-mpeg-vbi-itv0-1" title="Table 4.12. struct v4l2_mpeg_vbi_ITV0">v4l2_mpeg_vbi_ITV0</a> ITV0;
};
} __attribute__ ((packed));
/*
* A G G R E G A T E S T R U C T U R E S
*/
/* Stream data format
*/
struct <a class="link" href="re41.html#v4l2-format" title="Table A.46. struct v4l2_format">v4l2_format</a> {
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
union {
struct <a class="link" href="ch02.html#v4l2-pix-format" title="Table 2.1. struct v4l2_pix_format">v4l2_pix_format</a> pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
struct <a class="link" href="ch04s02.html#v4l2-window" title="Table 4.1. struct v4l2_window">v4l2_window</a> win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
struct <a class="link" href="ch04s07.html#v4l2-vbi-format" title="Table 4.4. struct v4l2_vbi_format">v4l2_vbi_format</a> vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */
struct <a class="link" href="ch04s08.html#v4l2-sliced-vbi-format" title="Table 4.6. struct v4l2_sliced_vbi_format">v4l2_sliced_vbi_format</a> sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
__u8 raw_data[200]; /* user-defined */
} fmt;
};
/* Stream type-dependent parameters
*/
struct <a class="link" href="re47.html#v4l2-streamparm" title="Table A.52. struct v4l2_streamparm">v4l2_streamparm</a> {
enum <a class="link" href="ch03s05.html#v4l2-buf-type" title="Table 3.2. enum v4l2_buf_type">v4l2_buf_type</a> type;
union {
struct <a class="link" href="re47.html#v4l2-captureparm" title="Table A.53. struct v4l2_captureparm">v4l2_captureparm</a> capture;
struct <a class="link" href="re47.html#v4l2-outputparm" title="Table A.54. struct v4l2_outputparm">v4l2_outputparm</a> 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, NEVER RELY ON THIS IN APPLICATIONS!
* FOR DEBUGGING, TESTING AND INTERNAL USE ONLY!
*/
/* 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 name */
#define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */
#define V4L2_CHIP_MATCH_AC97 3 /* Match against anciliary AC97 chip */
struct <a class="link" href="re24.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> {
__u32 type; /* Match type */
union { /* Match this chip, meaning determined by type */
__u32 addr;
char name[32];
};
} __attribute__ ((packed));
struct <a class="link" href="re24.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a> {
struct <a class="link" href="re24.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> match;
__u32 size; /* register size in bytes */
__u64 reg;
__u64 val;
} __attribute__ ((packed));
/* VIDIOC_DBG_G_CHIP_IDENT */
struct <a class="link" href="re23.html#v4l2-dbg-chip-ident" title="Table A.4. struct v4l2_dbg_chip_ident">v4l2_dbg_chip_ident</a> {
struct <a class="link" href="re24.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> match;
__u32 ident; /* chip identifier as specified in <media/v4l2-chip-ident.h> */
__u32 revision; /* chip revision, chip specific */
} __attribute__ ((packed));
/*
* 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 <a class="link" href="re56.html#v4l2-capability" title="Table A.66. struct v4l2_capability">v4l2_capability</a>)
#define VIDIOC_RESERVED _IO('V', 1)
#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct <a class="link" href="re28.html#v4l2-fmtdesc" title="Table A.13. struct v4l2_fmtdesc">v4l2_fmtdesc</a>)
#define VIDIOC_G_FMT _IOWR('V', 4, struct <a class="link" href="re41.html#v4l2-format" title="Table A.46. struct v4l2_format">v4l2_format</a>)
#define VIDIOC_S_FMT _IOWR('V', 5, struct <a class="link" href="re41.html#v4l2-format" title="Table A.46. struct v4l2_format">v4l2_format</a>)
#define VIDIOC_REQBUFS _IOWR('V', 8, struct <a class="link" href="re59.html#v4l2-requestbuffers" title="Table A.72. struct v4l2_requestbuffers">v4l2_requestbuffers</a>)
#define VIDIOC_QUERYBUF _IOWR('V', 9, struct <a class="link" href="ch03s05.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>)
#define VIDIOC_G_FBUF _IOR('V', 10, struct <a class="link" href="re40.html#v4l2-framebuffer" title="Table A.43. struct v4l2_framebuffer">v4l2_framebuffer</a>)
#define VIDIOC_S_FBUF _IOW('V', 11, struct <a class="link" href="re40.html#v4l2-framebuffer" title="Table A.43. struct v4l2_framebuffer">v4l2_framebuffer</a>)
#define VIDIOC_OVERLAY _IOW('V', 14, int)
#define VIDIOC_QBUF _IOWR('V', 15, struct <a class="link" href="ch03s05.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>)
#define VIDIOC_DQBUF _IOWR('V', 17, struct <a class="link" href="ch03s05.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>)
#define VIDIOC_STREAMON _IOW('V', 18, int)
#define VIDIOC_STREAMOFF _IOW('V', 19, int)
#define VIDIOC_G_PARM _IOWR('V', 21, struct <a class="link" href="re47.html#v4l2-streamparm" title="Table A.52. struct v4l2_streamparm">v4l2_streamparm</a>)
#define VIDIOC_S_PARM _IOWR('V', 22, struct <a class="link" href="re47.html#v4l2-streamparm" title="Table A.52. struct v4l2_streamparm">v4l2_streamparm</a>)
#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 <a class="link" href="re33.html#v4l2-standard" title="Table A.27. struct v4l2_standard">v4l2_standard</a>)
#define VIDIOC_ENUMINPUT _IOWR('V', 26, struct <a class="link" href="re31.html#v4l2-input" title="Table A.22. struct v4l2_input">v4l2_input</a>)
#define VIDIOC_G_CTRL _IOWR('V', 27, struct <a class="link" href="re37.html#v4l2-control" title="Table A.36. struct v4l2_control">v4l2_control</a>)
#define VIDIOC_S_CTRL _IOWR('V', 28, struct <a class="link" href="re37.html#v4l2-control" title="Table A.36. struct v4l2_control">v4l2_control</a>)
#define VIDIOC_G_TUNER _IOWR('V', 29, struct <a class="link" href="re51.html#v4l2-tuner" title="Table A.60. struct v4l2_tuner">v4l2_tuner</a>)
#define VIDIOC_S_TUNER _IOW('V', 30, struct <a class="link" href="re51.html#v4l2-tuner" title="Table A.60. struct v4l2_tuner">v4l2_tuner</a>)
#define VIDIOC_G_AUDIO _IOR('V', 33, struct <a class="link" href="re34.html#v4l2-audio" title="Table A.31. struct v4l2_audio">v4l2_audio</a>)
#define VIDIOC_S_AUDIO _IOW('V', 34, struct <a class="link" href="re34.html#v4l2-audio" title="Table A.31. struct v4l2_audio">v4l2_audio</a>)
#define VIDIOC_QUERYCTRL _IOWR('V', 36, struct <a class="link" href="re57.html#v4l2-queryctrl" title="Table A.68. struct v4l2_queryctrl">v4l2_queryctrl</a>)
#define VIDIOC_QUERYMENU _IOWR('V', 37, struct <a class="link" href="re57.html#v4l2-querymenu" title="Table A.69. struct v4l2_querymenu">v4l2_querymenu</a>)
#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 <a class="link" href="re32.html#v4l2-output" title="Table A.25. struct v4l2_output">v4l2_output</a>)
#define VIDIOC_G_AUDOUT _IOR('V', 49, struct <a class="link" href="re35.html#v4l2-audioout" title="Table A.34. struct v4l2_audioout">v4l2_audioout</a>)
#define VIDIOC_S_AUDOUT _IOW('V', 50, struct <a class="link" href="re35.html#v4l2-audioout" title="Table A.34. struct v4l2_audioout">v4l2_audioout</a>)
#define VIDIOC_G_MODULATOR _IOWR('V', 54, struct <a class="link" href="re45.html#v4l2-modulator" title="Table A.50. struct v4l2_modulator">v4l2_modulator</a>)
#define VIDIOC_S_MODULATOR _IOW('V', 55, struct <a class="link" href="re45.html#v4l2-modulator" title="Table A.50. struct v4l2_modulator">v4l2_modulator</a>)
#define VIDIOC_G_FREQUENCY _IOWR('V', 56, struct <a class="link" href="re42.html#v4l2-frequency" title="Table A.47. struct v4l2_frequency">v4l2_frequency</a>)
#define VIDIOC_S_FREQUENCY _IOW('V', 57, struct <a class="link" href="re42.html#v4l2-frequency" title="Table A.47. struct v4l2_frequency">v4l2_frequency</a>)
#define VIDIOC_CROPCAP _IOWR('V', 58, struct <a class="link" href="re22.html#v4l2-cropcap" title="Table A.1. struct v4l2_cropcap">v4l2_cropcap</a>)
#define VIDIOC_G_CROP _IOWR('V', 59, struct <a class="link" href="re36.html#v4l2-crop" title="Table A.35. struct v4l2_crop">v4l2_crop</a>)
#define VIDIOC_S_CROP _IOW('V', 60, struct <a class="link" href="re36.html#v4l2-crop" title="Table A.35. struct v4l2_crop">v4l2_crop</a>)
#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct <a class="link" href="re44.html#v4l2-jpegcompression" title="Table A.48. struct v4l2_jpegcompression">v4l2_jpegcompression</a>)
#define VIDIOC_S_JPEGCOMP _IOW('V', 62, struct <a class="link" href="re44.html#v4l2-jpegcompression" title="Table A.48. struct v4l2_jpegcompression">v4l2_jpegcompression</a>)
#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id)
#define VIDIOC_TRY_FMT _IOWR('V', 64, struct <a class="link" href="re41.html#v4l2-format" title="Table A.46. struct v4l2_format">v4l2_format</a>)
#define VIDIOC_ENUMAUDIO _IOWR('V', 65, struct <a class="link" href="re34.html#v4l2-audio" title="Table A.31. struct v4l2_audio">v4l2_audio</a>)
#define VIDIOC_ENUMAUDOUT _IOWR('V', 66, struct <a class="link" href="re35.html#v4l2-audioout" title="Table A.34. struct v4l2_audioout">v4l2_audioout</a>)
#define VIDIOC_G_PRIORITY _IOR('V', 67, enum <a class="link" href="re48.html#v4l2-priority" title="Table A.57. enum v4l2_priority">v4l2_priority</a>)
#define VIDIOC_S_PRIORITY _IOW('V', 68, enum <a class="link" href="re48.html#v4l2-priority" title="Table A.57. enum v4l2_priority">v4l2_priority</a>)
#define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct <a class="link" href="re49.html#v4l2-sliced-vbi-cap" title="Table A.58. struct v4l2_sliced_vbi_cap">v4l2_sliced_vbi_cap</a>)
#define VIDIOC_LOG_STATUS _IO('V', 70)
#define VIDIOC_G_EXT_CTRLS _IOWR('V', 71, struct <a class="link" href="re39.html#v4l2-ext-controls" title="Table A.41. struct v4l2_ext_controls">v4l2_ext_controls</a>)
#define VIDIOC_S_EXT_CTRLS _IOWR('V', 72, struct <a class="link" href="re39.html#v4l2-ext-controls" title="Table A.41. struct v4l2_ext_controls">v4l2_ext_controls</a>)
#define VIDIOC_TRY_EXT_CTRLS _IOWR('V', 73, struct <a class="link" href="re39.html#v4l2-ext-controls" title="Table A.41. struct v4l2_ext_controls">v4l2_ext_controls</a>)
#if 1 /*KEEP*/
#define VIDIOC_ENUM_FRAMESIZES _IOWR('V', 74, struct <a class="link" href="re29.html#v4l2-frmsizeenum" title="Table A.17. struct v4l2_frmsizeenum">v4l2_frmsizeenum</a>)
#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct <a class="link" href="re30.html#v4l2-frmivalenum" title="Table A.20. struct v4l2_frmivalenum">v4l2_frmivalenum</a>)
#define VIDIOC_G_ENC_INDEX _IOR('V', 76, struct <a class="link" href="re38.html#v4l2-enc-idx" title="Table A.37. struct v4l2_enc_idx">v4l2_enc_idx</a>)
#define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct <a class="link" href="re25.html#v4l2-encoder-cmd" title="Table A.10. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a>)
#define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct <a class="link" href="re25.html#v4l2-encoder-cmd" title="Table A.10. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a>)
#endif
#if 1 /*KEEP*/
/* Experimental, meant for debugging, testing and internal use.
Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined.
You must be root to use these ioctls. Never use these in applications! */
#define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct <a class="link" href="re24.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a>)
#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct <a class="link" href="re24.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a>)
/* Experimental, meant for debugging, testing and internal use.
Never use this ioctl in applications! */
#define VIDIOC_DBG_G_CHIP_IDENT _IOWR('V', 81, struct <a class="link" href="re23.html#v4l2-dbg-chip-ident" title="Table A.4. struct v4l2_dbg_chip_ident">v4l2_dbg_chip_ident</a>)
#endif
#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <a class="link" href="re60.html#v4l2-hw-freq-seek" title="Table A.73. struct v4l2_hw_freq_seek">v4l2_hw_freq_seek</a>)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */
#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 <a class="link" href="re47.html#v4l2-streamparm" title="Table A.52. struct v4l2_streamparm">v4l2_streamparm</a>)
#define VIDIOC_S_CTRL_OLD _IOW('V', 28, struct <a class="link" href="re37.html#v4l2-control" title="Table A.36. struct v4l2_control">v4l2_control</a>)
#define VIDIOC_G_AUDIO_OLD _IOWR('V', 33, struct <a class="link" href="re34.html#v4l2-audio" title="Table A.31. struct v4l2_audio">v4l2_audio</a>)
#define VIDIOC_G_AUDOUT_OLD _IOWR('V', 49, struct <a class="link" href="re35.html#v4l2-audioout" title="Table A.34. struct v4l2_audioout">v4l2_audioout</a>)
#define VIDIOC_CROPCAP_OLD _IOR('V', 58, struct <a class="link" href="re22.html#v4l2-cropcap" title="Table A.1. struct v4l2_cropcap">v4l2_cropcap</a>)
#endif
#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
#endif /* __LINUX_VIDEODEV2_H */
</pre></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re68.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="pt01.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="apc.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">V4L2 write() </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Appendix C. Video Capture Example</td></tr></table></div></body></html>
