Release 4.7 include/uapi/linux/videodev2.h
/*
* Video for Linux Two header file
*
* Copyright (C) 1999-2012 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 https://linuxtv.org for more info
*
* Author: Bill Dirks <bill@thedirks.org>
* Justin Schoeman
* Hans Verkuil <hverkuil@xs4all.nl>
* et al.
*/
#ifndef _UAPI__LINUX_VIDEODEV2_H
#define _UAPI__LINUX_VIDEODEV2_H
#ifndef __KERNEL__
#include <sys/time.h>
#endif
#include <linux/compiler.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/v4l2-common.h>
#include <linux/v4l2-controls.h>
/*
* Common stuff for both V4L1 and V4L2
* Moved from videodev.h
*/
#define VIDEO_MAX_FRAME 32
#define VIDEO_MAX_PLANES 8
/*
* 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))
#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31))
/*
* 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)
#define V4L2_FIELD_HAS_T_OR_B(field) \
((field) == V4L2_FIELD_BOTTOM ||\
(field) == V4L2_FIELD_TOP ||\
(field) == V4L2_FIELD_ALTERNATE)
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,
V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10,
V4L2_BUF_TYPE_SDR_CAPTURE = 11,
V4L2_BUF_TYPE_SDR_OUTPUT = 12,
/* Deprecated, do not use */
V4L2_BUF_TYPE_PRIVATE = 0x80,
};
#define V4L2_TYPE_IS_MULTIPLANAR(type) \
((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
#define V4L2_TYPE_IS_OUTPUT(type) \
((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \
|| (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \
|| (type) == V4L2_BUF_TYPE_VBI_OUTPUT \
|| (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT \
|| (type) == V4L2_BUF_TYPE_SDR_OUTPUT)
enum v4l2_tuner_type {
V4L2_TUNER_RADIO = 1,
V4L2_TUNER_ANALOG_TV = 2,
V4L2_TUNER_DIGITAL_TV = 3,
V4L2_TUNER_SDR = 4,
V4L2_TUNER_RF = 5,
};
/* Deprecated, do not use */
#define V4L2_TUNER_ADC V4L2_TUNER_SDR
enum v4l2_memory {
V4L2_MEMORY_MMAP = 1,
V4L2_MEMORY_USERPTR = 2,
V4L2_MEMORY_OVERLAY = 3,
V4L2_MEMORY_DMABUF = 4,
};
/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
/*
* Default colorspace, i.e. let the driver figure it out.
* Can only be used with video capture.
*/
V4L2_COLORSPACE_DEFAULT = 0,
/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
V4L2_COLORSPACE_SMPTE170M = 1,
/* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
V4L2_COLORSPACE_SMPTE240M = 2,
/* Rec.709: used for HDTV */
V4L2_COLORSPACE_REC709 = 3,
/*
* Deprecated, do not use. No driver will ever return this. This was
* based on a misunderstanding of the bt878 datasheet.
*/
V4L2_COLORSPACE_BT878 = 4,
/*
* NTSC 1953 colorspace. This only makes sense when dealing with
* really, really old NTSC recordings. Superseded by SMPTE 170M.
*/
V4L2_COLORSPACE_470_SYSTEM_M = 5,
/*
* EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
* dealing with really old PAL/SECAM recordings. Superseded by
* SMPTE 170M.
*/
V4L2_COLORSPACE_470_SYSTEM_BG = 6,
/*
* Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
* and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
*/
V4L2_COLORSPACE_JPEG = 7,
/* For RGB colorspaces such as produces by most webcams. */
V4L2_COLORSPACE_SRGB = 8,
/* AdobeRGB colorspace */
V4L2_COLORSPACE_ADOBERGB = 9,
/* BT.2020 colorspace, used for UHDTV. */
V4L2_COLORSPACE_BT2020 = 10,
/* Raw colorspace: for RAW unprocessed images */
V4L2_COLORSPACE_RAW = 11,
/* DCI-P3 colorspace, used by cinema projectors */
V4L2_COLORSPACE_DCI_P3 = 12,
};
/*
* Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
* This depends on whether this is a SDTV image (use SMPTE 170M), an
* HDTV image (use Rec. 709), or something else (use sRGB).
*/
#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))
enum v4l2_xfer_func {
/*
* Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
* for the various colorspaces:
*
* V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
* V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
* V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
*
* V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
*
* V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB
*
* V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
*
* V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
*
* V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
*/
V4L2_XFER_FUNC_DEFAULT = 0,
V4L2_XFER_FUNC_709 = 1,
V4L2_XFER_FUNC_SRGB = 2,
V4L2_XFER_FUNC_ADOBERGB = 3,
V4L2_XFER_FUNC_SMPTE240M = 4,
V4L2_XFER_FUNC_NONE = 5,
V4L2_XFER_FUNC_DCI_P3 = 6,
V4L2_XFER_FUNC_SMPTE2084 = 7,
};
/*
* Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
* This depends on the colorspace.
*/
#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
((colsp) == V4L2_COLORSPACE_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \
((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))
enum v4l2_ycbcr_encoding {
/*
* Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
* various colorspaces:
*
* V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
* V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_ADOBERGB and
* V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
*
* V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
*
* V4L2_COLORSPACE_SRGB: V4L2_YCBCR_ENC_SYCC
*
* V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
*
* V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
*/
V4L2_YCBCR_ENC_DEFAULT = 0,
/* ITU-R 601 -- SDTV */
V4L2_YCBCR_ENC_601 = 1,
/* Rec. 709 -- HDTV */
V4L2_YCBCR_ENC_709 = 2,
/* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
V4L2_YCBCR_ENC_XV601 = 3,
/* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
V4L2_YCBCR_ENC_XV709 = 4,
/* sYCC (Y'CbCr encoding of sRGB) */
V4L2_YCBCR_ENC_SYCC = 5,
/* BT.2020 Non-constant Luminance Y'CbCr */
V4L2_YCBCR_ENC_BT2020 = 6,
/* BT.2020 Constant Luminance Y'CbcCrc */
V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,
/* SMPTE 240M -- Obsolete HDTV */
V4L2_YCBCR_ENC_SMPTE240M = 8,
};
/*
* Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
* This depends on the colorspace.
*/
#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
(((colsp) == V4L2_COLORSPACE_REC709 || \
(colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
V4L2_YCBCR_ENC_601)))
enum v4l2_quantization {
/*
* The default for R'G'B' quantization is always full range, except
* for the BT2020 colorspace. For Y'CbCr the quantization is always
* limited range, except for COLORSPACE_JPEG, SYCC, XV601 or XV709:
* those are full range.
*/
V4L2_QUANTIZATION_DEFAULT = 0,
V4L2_QUANTIZATION_FULL_RANGE = 1,
V4L2_QUANTIZATION_LIM_RANGE = 2,
};
/*
* Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
* This depends on whether the image is RGB or not, the colorspace and the
* Y'CbCr encoding.
*/
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
(((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
(((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
(ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \
V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
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;
__u32 width;
__u32 height;
};
struct v4l2_fract {
__u32 numerator;
__u32 denominator;
};
/**
* struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
*
* @driver: name of the driver module (e.g. "bttv")
* @card: name of the card (e.g. "Hauppauge WinTV")
* @bus_info: name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
* @version: KERNEL_VERSION
* @capabilities: capabilities of the physical device as a whole
* @device_caps: capabilities accessed via this particular device (node)
* @reserved: reserved fields for future extensions
*/
struct v4l2_capability {
__u8 driver[16];
__u8 card[32];
__u8 bus_info[32];
__u32 version;
__u32 capabilities;
__u32 device_caps;
__u32 reserved[3];
};
/* 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 */
/* Is a video capture device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000
/* Is a video output device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000
/* Is a video mem-to-mem device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_M2M_MPLANE 0x00004000
/* Is a video mem-to-mem device */
#define V4L2_CAP_VIDEO_M2M 0x00008000
#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_SDR_CAPTURE 0x00100000
/* Is a SDR capture device */
#define V4L2_CAP_EXT_PIX_FORMAT 0x00200000
/* Supports the extended pixel format */
#define V4L2_CAP_SDR_OUTPUT 0x00400000
/* Is a SDR output 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 */
#define V4L2_CAP_DEVICE_CAPS 0x80000000
/* sets device capabilities field */
/*
* 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;
__u32 field; /* enum v4l2_field */
__u32 bytesperline; /* for padding, zero if unused */
__u32 sizeimage;
__u32 colorspace; /* enum v4l2_colorspace */
__u32 priv; /* private data, depends on pixelformat */
__u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */
__u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */
__u32 quantization; /* enum v4l2_quantization */
__u32 xfer_func; /* enum v4l2_xfer_func */
};
/* Pixel format FOURCC depth Description */
/* RGB formats */
#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_ARGB444 v4l2_fourcc('A', 'R', '1', '2')
/* 16 aaaarrrr ggggbbbb */
#define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2')
/* 16 xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_RGB555 v4l2_fourcc('R', 'G', 'B', 'O')
/* 16 RGB-5-5-5 */
#define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5')
/* 16 ARGB-1-5-5-5 */
#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5')
/* 16 XRGB-1-5-5-5 */
#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_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5')
/* 16 ARGB-5-5-5 BE */
#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5')
/* 16 XRGB-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_BGR666 v4l2_fourcc('B', 'G', 'R', 'H')
/* 18 BGR-6-6-6 */
#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_ABGR32 v4l2_fourcc('A', 'R', '2', '4')
/* 32 BGRA-8-8-8-8 */
#define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4')
/* 32 BGRX-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_ARGB32 v4l2_fourcc('B', 'A', '2', '4')
/* 32 ARGB-8-8-8-8 */
#define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4')
/* 32 XRGB-8-8-8-8 */
/* Grey formats */
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y')
/* 8 Greyscale */
#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ')
/* 4 Greyscale */
#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ')
/* 6 Greyscale */
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ')
/* 10 Greyscale */
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ')
/* 12 Greyscale */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ')
/* 16 Greyscale */
#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ')
/* 16 Greyscale BE */
/* Grey bit-packed formats */
#define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B')
/* 10 Greyscale bit-packed */
/* Palette formats */
#define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8')
/* 8 8-bit palette */
/* Chrominance formats */
#define V4L2_PIX_FMT_UV8 v4l2_fourcc('U', 'V', '8', ' ')
/* 8 UV 4:4 */
/* Luminance+Chrominance formats */
#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_YYUV v4l2_fourcc('Y', 'Y', 'U', 'V')
/* 16 YUV 4:2:2 */
#define V4L2_PIX_FMT_YVYU v4l2_fourcc('Y', 'V', 'Y', 'U')
/* 16 YVU 4:2:2 */
#define V4L2_PIX_FMT_UYVY v4l2_fourcc('U', 'Y', 'V', 'Y')
/* 16 YUV 4:2:2 */
#define V4L2_PIX_FMT_VYUY v4l2_fourcc('V', 'Y', 'U', 'Y')
/* 16 YUV 4:2:2 */
#define V4L2_PIX_FMT_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 */
#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_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 */
#define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0')
/* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */
/* 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 */
#define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6')
/* 16 Y/CbCr 4:2:2 */
#define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1')
/* 16 Y/CrCb 4:2:2 */
#define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4')
/* 24 Y/CbCr 4:4:4 */
#define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2')
/* 24 Y/CrCb 4:4:4 */
/* two non contiguous planes - one Y, one Cr + Cb interleaved */
#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2')
/* 12 Y/CbCr 4:2:0 */
#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1')
/* 21 Y/CrCb 4:2:0 */
#define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6')
/* 16 Y/CbCr 4:2:2 */
#define V4L2_PIX_FMT_NV61M v4l2_fourcc('N', 'M', '6', '1')
/* 16 Y/CrCb 4:2:2 */
#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2')
/* 12 Y/CbCr 4:2:0 64x32 macroblocks */
#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2')
/* 12 Y/CbCr 4:2:0 16x16 macroblocks */
/* three non contiguous planes - Y, Cb, Cr */
#define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2')
/* 12 YUV420 planar */
#define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1')
/* 12 YVU420 planar */
#define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6')
/* 16 YUV422 planar */
#define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1')
/* 16 YVU422 planar */
#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4')
/* 24 YUV444 planar */
#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2')
/* 24 YVU444 planar */
/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1')
/* 8 BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G')
/* 8 GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G')
/* 8 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB8 v4l2_fourcc('R', 'G', 'G', 'B')
/* 8 RGRG.. GBGB.. */
#define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0')
/* 10 BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0')
/* 10 GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0')
/* 10 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0')
/* 10 RGRG.. GBGB.. */
/* 10bit raw bayer packed, 5 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
#define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
#define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
#define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
/* 10bit raw bayer a-law compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
#define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
/* 10bit raw bayer DPCM compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2')
/* 12 BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2')
/* 12 GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2')
/* 12 GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2')
/* 12 RGRG.. GBGB.. */
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2')
/* 16 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 Multiplexed */
#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4')
/* H264 with start codes */
#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1')
/* H264 without start codes */
#define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4')
/* H264 MVC */
#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3')
/* H263 */
#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1')
/* MPEG-1 ES */
#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2')
/* MPEG-2 ES */
#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4')
/* MPEG-4 part 2 ES */
#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D')
/* Xvid */
#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G')
/* SMPTE 421M Annex G compliant stream */
#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L')
/* SMPTE 421M Annex L compliant stream */
#define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0')
/* VP8 */
/* Vendor-specific formats */
#define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A')
/* cpia1 YUV */
#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_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0')
/* SN9C20x YUV 4:2:0 */
#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 */
#define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1')
/* YUYV per line */
#define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5')
/* YYUV per line */
#define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8')
/* YUVY per line */
#define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1')
/* compressed GBRG bayer */
#define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7')
/* compressed BGGR bayer */
#define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0')
/* compressed BGGR bayer */
#define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0')
/* compressed RGGB bayer */
#define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X')
/* compressed GBRG bayer */
#define V4L2_PIX_FMT_SQ905C v4l2_fourcc('9', '0', '5', 'C')
/* compressed RGGB bayer */
#define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G')
/* Pixart 73xx JPEG */
#define V4L2_PIX_FMT_OV511 v4l2_fourcc('O', '5', '1', '1')
/* ov511 JPEG */
#define V4L2_PIX_FMT_OV518 v4l2_fourcc('O', '5', '1', '8')
/* ov518 JPEG */
#define V4L2_PIX_FMT_STV0680 v4l2_fourcc('S', '6', '8', '0')
/* stv0680 bayer */
#define V4L2_PIX_FMT_TM6000 v4l2_fourcc('T', 'M', '6', '0')
/* tm5600/tm60x0 */
#define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V')
/* one line of Y then 1 line of VYUY */
#define V4L2_PIX_FMT_KONICA420 v4l2_fourcc('K', 'O', 'N', 'I')
/* YUV420 planar in blocks of 256 pixels */
#define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L')
/* JPEG-Lite */
#define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1')
/* se401 janggu compressed rgb */
#define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I')
/* S5C73M3 interleaved UYVY/JPEG */
#define V4L2_PIX_FMT_Y8I v4l2_fourcc('Y', '8', 'I', ' ')
/* Greyscale 8-bit L/R interleaved */
#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I')
/* Greyscale 12-bit L/R interleaved */
#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ')
/* Depth data 16-bit */
/* SDR formats - used only for Software Defined Radio devices */
#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8')
/* IQ u8 */
#define V4L2_SDR_FMT_CU16LE v4l2_fourcc('C', 'U', '1', '6')
/* IQ u16le */
#define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8')
/* complex s8 */
#define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4')
/* complex s14le */
#define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2')
/* real u12le */
/* priv field value to indicates that subsequent fields are valid. */
#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
/* Flags */
#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA 0x00000001
/*
* F O R M A T E N U M E R A T I O N
*/
struct v4l2_fmtdesc {
__u32 index; /* Format number */
__u32 type; /* enum v4l2_buf_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
/* 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 */
};
/*
* 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.
* Including less markers will make the
* resulting code smaller, but there will
* be fewer applications 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
* always 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;
__u32 type; /* enum v4l2_buf_type */
__u32 memory; /* enum v4l2_memory */
__u32 reserved[2];
};
/**
* struct v4l2_plane - plane info for multi-planar buffers
* @bytesused: number of bytes occupied by data in the plane (payload)
* @length: size of this plane (NOT the payload) in bytes
* @mem_offset: when memory in the associated struct v4l2_buffer is
* V4L2_MEMORY_MMAP, equals the offset from the start of
* the device memory for this plane (or is a "cookie" that
* should be passed to mmap() called on the video node)
* @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer
* pointing to this plane
* @fd: when memory is V4L2_MEMORY_DMABUF, a userspace file
* descriptor associated with this plane
* @data_offset: offset in the plane to the start of data; usually 0,
* unless there is a header in front of the data
*
* Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
* with two planes can have one plane for Y, and another for interleaved CbCr
* components. Each plane can reside in a separate memory buffer, or even in
* a completely separate memory node (e.g. in embedded devices).
*/
struct v4l2_plane {
__u32 bytesused;
__u32 length;
union {
__u32 mem_offset;
unsigned long userptr;
__s32 fd;
}
m;
__u32 data_offset;
__u32 reserved[11];
};
/**
* struct v4l2_buffer - video buffer info
* @index: id number of the buffer
* @type: enum v4l2_buf_type; buffer type (type == *_MPLANE for
* multiplanar buffers);
* @bytesused: number of bytes occupied by data in the buffer (payload);
* unused (set to 0) for multiplanar buffers
* @flags: buffer informational flags
* @field: enum v4l2_field; field order of the image in the buffer
* @timestamp: frame timestamp
* @timecode: frame timecode
* @sequence: sequence count of this frame
* @memory: enum v4l2_memory; the method, in which the actual video data is
* passed
* @offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
* offset from the start of the device memory for this plane,
* (or a "cookie" that should be passed to mmap() as offset)
* @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
* a userspace pointer pointing to this buffer
* @fd: for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
* a userspace file descriptor associated with this buffer
* @planes: for multiplanar buffers; userspace pointer to the array of plane
* info structs for this buffer
* @length: size in bytes of the buffer (NOT its payload) for single-plane
* buffers (when type != *_MPLANE); number of elements in the
* planes array for multi-plane buffers
*
* Contains data exchanged by application and driver using one of the Streaming
* I/O methods.
*/
struct v4l2_buffer {
__u32 index;
__u32 type;
__u32 bytesused;
__u32 flags;
__u32 field;
struct timeval timestamp;
struct v4l2_timecode timecode;
__u32 sequence;
/* memory location */
__u32 memory;
union {
__u32 offset;
unsigned long userptr;
struct v4l2_plane *planes;
__s32 fd;
}
m;
__u32 length;
__u32 reserved2;
__u32 reserved;
};
/* Flags for 'flags' field */
/* Buffer is mapped (flag) */
#define V4L2_BUF_FLAG_MAPPED 0x00000001
/* Buffer is queued for processing */
#define V4L2_BUF_FLAG_QUEUED 0x00000002
/* Buffer is ready */
#define V4L2_BUF_FLAG_DONE 0x00000004
/* Image is a keyframe (I-frame) */
#define V4L2_BUF_FLAG_KEYFRAME 0x00000008
/* Image is a P-frame */
#define V4L2_BUF_FLAG_PFRAME 0x00000010
/* Image is a B-frame */
#define V4L2_BUF_FLAG_BFRAME 0x00000020
/* Buffer is ready, but the data contained within is corrupted. */
#define V4L2_BUF_FLAG_ERROR 0x00000040
/* timecode field is valid */
#define V4L2_BUF_FLAG_TIMECODE 0x00000100
/* Buffer is prepared for queuing */
#define V4L2_BUF_FLAG_PREPARED 0x00000400
/* Cache handling flags */
#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x00000800
#define V4L2_BUF_FLAG_NO_CACHE_CLEAN 0x00001000
/* Timestamp type */
#define V4L2_BUF_FLAG_TIMESTAMP_MASK 0x0000e000
#define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x00000000
#define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC 0x00002000
#define V4L2_BUF_FLAG_TIMESTAMP_COPY 0x00004000
/* Timestamp sources. */
#define V4L2_BUF_FLAG_TSTAMP_SRC_MASK 0x00070000
#define V4L2_BUF_FLAG_TSTAMP_SRC_EOF 0x00000000
#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000
/* mem2mem encoder/decoder */
#define V4L2_BUF_FLAG_LAST 0x00100000
/**
* struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
*
* @index: id number of the buffer
* @type: enum v4l2_buf_type; buffer type (type == *_MPLANE for
* multiplanar buffers);
* @plane: index of the plane to be exported, 0 for single plane queues
* @flags: flags for newly created file, currently only O_CLOEXEC is
* supported, refer to manual of open syscall for more details
* @fd: file descriptor associated with DMABUF (set by driver)
*
* Contains data used for exporting a video buffer as DMABUF file descriptor.
* The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
* (identical to the cookie used to mmap() the buffer to userspace). All
* reserved fields must be set to zero. The field reserved0 is expected to
* become a structure 'type' allowing an alternative layout of the structure
* content. Therefore this field should not be used for any other extensions.
*/
struct v4l2_exportbuffer {
__u32 type; /* enum v4l2_buf_type */
__u32 index;
__u32 plane;
__u32 flags;
__s32 fd;
__u32 reserved[11];
};
/*
* 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 {
__u32 width;
__u32 height;
__u32 pixelformat;
__u32 field; /* enum v4l2_field */
__u32 bytesperline; /* for padding, zero if unused */
__u32 sizeimage;
__u32 colorspace; /* enum v4l2_colorspace */
__u32 priv; /* reserved field, set to 0 */
}
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
#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080
/* 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
#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040
struct v4l2_clip {
struct v4l2_rect c;
struct v4l2_clip __user *next;
};
struct v4l2_window {
struct v4l2_rect w;
__u32 field; /* enum v4l2_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 seconds */
__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 {
__u32 type; /* enum v4l2_buf_type */
struct v4l2_rect bounds;
struct v4l2_rect defrect;
struct v4l2_fract pixelaspect;
};
struct v4l2_crop {
__u32 type; /* enum v4l2_buf_type */
struct v4l2_rect c;
};
/**
* struct v4l2_selection - selection info
* @type: buffer type (do not use *_MPLANE types)
* @target: Selection target, used to choose one of possible rectangles;
* defined in v4l2-common.h; V4L2_SEL_TGT_* .
* @flags: constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
* @r: coordinates of selection window
* @reserved: for future use, rounds structure size to 64 bytes, set to zero
*
* Hardware may use multiple helper windows to process a video stream.
* The structure is used to exchange this selection areas between
* an application and a driver.
*/
struct v4l2_selection {
__u32 type;
__u32 target;
__u32 flags;
struct v4l2_rect r;
__u32 reserved[9];
};
/*
* 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)
/* BTSC */
#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000)
/* EIA-J */
#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000)
#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000)
/* FM A2 */
#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 macros to merge video standards in order to make live easier for the
* drivers and V4L2 applications
*/
/*
* "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is
* Missing here.
*/
#define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\
V4L2_STD_NTSC_M_JP |\
V4L2_STD_NTSC_M_KR)
/* Secam macros */
#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\
V4L2_STD_SECAM_K |\
V4L2_STD_SECAM_K1)
/* All Secam Standards */
#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)
/* PAL macros */
#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)
/*
* "Common" PAL - This macro is there to be compatible with the old
* V4L1 concept of "PAL": /BGDKHI.
* Several PAL standards are missing here: /M, /N and /Nc
*/
#define V4L2_STD_PAL (V4L2_STD_PAL_BG |\
V4L2_STD_PAL_DK |\
V4L2_STD_PAL_H |\
V4L2_STD_PAL_I)
/* Chroma "agnostic" standards */
#define V4L2_STD_B (V4L2_STD_PAL_B |\
V4L2_STD_PAL_B1 |\
V4L2_STD_SECAM_B)
#define V4L2_STD_G (V4L2_STD_PAL_G |\
V4L2_STD_SECAM_G)
#define V4L2_STD_H (V4L2_STD_PAL_H |\
V4L2_STD_SECAM_H)
#define V4L2_STD_L (V4L2_STD_SECAM_L |\
V4L2_STD_SECAM_LC)
#define V4L2_STD_GH (V4L2_STD_G |\
V4L2_STD_H)
#define V4L2_STD_DK (V4L2_STD_PAL_DK |\
V4L2_STD_SECAM_DK)
#define V4L2_STD_BG (V4L2_STD_B |\
V4L2_STD_G)
#define V4L2_STD_MN (V4L2_STD_PAL_M |\
V4L2_STD_PAL_N |\
V4L2_STD_PAL_Nc |\
V4L2_STD_NTSC)
/* Standards where MTS/BTSC stereo could be found */
#define V4L2_STD_MTS (V4L2_STD_NTSC_M |\
V4L2_STD_PAL_M |\
V4L2_STD_PAL_N |\
V4L2_STD_PAL_Nc)
/* Standards for Countries with 60Hz Line frequency */
#define V4L2_STD_525_60 (V4L2_STD_PAL_M |\
V4L2_STD_PAL_60 |\
V4L2_STD_NTSC |\
V4L2_STD_NTSC_443)
/* Standards for Countries with 50Hz Line frequency */
#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)
/* Macros with none and all analog standards */
#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];
};
/*
* D V B T T I M I N G S
*/
/** struct v4l2_bt_timings - BT.656/BT.1120 timing data
* @width: total width of the active video in pixels
* @height: total height of the active video in lines
* @interlaced: Interlaced or progressive
* @polarities: Positive or negative polarities
* @pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
* @hfrontporch:Horizontal front porch in pixels
* @hsync: Horizontal Sync length in pixels
* @hbackporch: Horizontal back porch in pixels
* @vfrontporch:Vertical front porch in lines
* @vsync: Vertical Sync length in lines
* @vbackporch: Vertical back porch in lines
* @il_vfrontporch:Vertical front porch for the even field
* (aka field 2) of interlaced field formats
* @il_vsync: Vertical Sync length for the even field
* (aka field 2) of interlaced field formats
* @il_vbackporch:Vertical back porch for the even field
* (aka field 2) of interlaced field formats
* @standards: Standards the timing belongs to
* @flags: Flags
* @reserved: Reserved fields, must be zeroed.
*
* A note regarding vertical interlaced timings: height refers to the total
* height of the active video frame (= two fields). The blanking timings refer
* to the blanking of each field. So the height of the total frame is
* calculated as follows:
*
* tot_height = height + vfrontporch + vsync + vbackporch +
* il_vfrontporch + il_vsync + il_vbackporch
*
* The active height of each field is height / 2.
*/
struct v4l2_bt_timings {
__u32 width;
__u32 height;
__u32 interlaced;
__u32 polarities;
__u64 pixelclock;
__u32 hfrontporch;
__u32 hsync;
__u32 hbackporch;
__u32 vfrontporch;
__u32 vsync;
__u32 vbackporch;
__u32 il_vfrontporch;
__u32 il_vsync;
__u32 il_vbackporch;
__u32 standards;
__u32 flags;
__u32 reserved[14];
} __attribute__ ((packed));
/* Interlaced or progressive format */
#define V4L2_DV_PROGRESSIVE 0
#define V4L2_DV_INTERLACED 1
/* Polarities. If bit is not set, it is assumed to be negative polarity */
#define V4L2_DV_VSYNC_POS_POL 0x00000001
#define V4L2_DV_HSYNC_POS_POL 0x00000002
/* Timings standards */
#define V4L2_DV_BT_STD_CEA861 (1 << 0)
/* CEA-861 Digital TV Profile */
#define V4L2_DV_BT_STD_DMT (1 << 1)
/* VESA Discrete Monitor Timings */
#define V4L2_DV_BT_STD_CVT (1 << 2)
/* VESA Coordinated Video Timings */
#define V4L2_DV_BT_STD_GTF (1 << 3)
/* VESA Generalized Timings Formula */
/* Flags */
/* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary
GTF' curve (GTF). In both cases the horizontal and/or vertical blanking
intervals are reduced, allowing a higher resolution over the same
bandwidth. This is a read-only flag. */
#define V4L2_DV_FL_REDUCED_BLANKING (1 << 0)
/* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple
of six. These formats can be optionally played at 1 / 1.001 speed.
This is a read-only flag. */
#define V4L2_DV_FL_CAN_REDUCE_FPS (1 << 1)
/* CEA-861 specific: only valid for video transmitters, the flag is cleared
by receivers.
If the framerate of the format is a multiple of six, then the pixelclock
used to set up the transmitter is divided by 1.001 to make it compatible
with 60 Hz based standards such as NTSC and PAL-M that use a framerate of
29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate
such frequencies, then the flag will also be cleared. */
#define V4L2_DV_FL_REDUCED_FPS (1 << 2)
/* Specific to interlaced formats: if set, then field 1 is really one half-line
longer and field 2 is really one half-line shorter, so each field has
exactly the same number of half-lines. Whether half-lines can be detected
or used depends on the hardware. */
#define V4L2_DV_FL_HALF_LINE (1 << 3)
/* If set, then this is a Consumer Electronics (CE) video format. Such formats
* differ from other formats (commonly called IT formats) in that if RGB
* encoding is used then by default the RGB values use limited range (i.e.
* use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
* except for the 640x480 format are CE formats. */
#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4)
/* A few useful defines to calculate the total blanking and frame sizes */
#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch)
#define V4L2_DV_BT_FRAME_WIDTH(bt) \
((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
(bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
#define V4L2_DV_BT_FRAME_HEIGHT(bt) \
((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
/** struct v4l2_dv_timings - DV timings
* @type: the type of the timings
* @bt: BT656/1120 timings
*/
struct v4l2_dv_timings {
__u32 type;
union {
struct v4l2_bt_timings bt;
__u32 reserved[32];
};
} __attribute__ ((packed));
/* Values for the type field */
#define V4L2_DV_BT_656_1120 0
/* BT.656/1120 timing type */
/** struct v4l2_enum_dv_timings - DV timings enumeration
* @index: enumeration index
* @pad: the pad number for which to enumerate timings (used with
* v4l-subdev nodes only)
* @reserved: must be zeroed
* @timings: the timings for the given index
*/
struct v4l2_enum_dv_timings {
__u32 index;
__u32 pad;
__u32 reserved[2];
struct v4l2_dv_timings timings;
};
/** struct v4l2_bt_timings_cap - BT.656/BT.1120 timing capabilities
* @min_width: width in pixels
* @max_width: width in pixels
* @min_height: height in lines
* @max_height: height in lines
* @min_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
* @max_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000
* @standards: Supported standards
* @capabilities: Supported capabilities
* @reserved: Must be zeroed
*/
struct v4l2_bt_timings_cap {
__u32 min_width;
__u32 max_width;
__u32 min_height;
__u32 max_height;
__u64 min_pixelclock;
__u64 max_pixelclock;
__u32 standards;
__u32 capabilities;
__u32 reserved[16];
} __attribute__ ((packed));
/* Supports interlaced formats */
#define V4L2_DV_BT_CAP_INTERLACED (1 << 0)
/* Supports progressive formats */
#define V4L2_DV_BT_CAP_PROGRESSIVE (1 << 1)
/* Supports CVT/GTF reduced blanking */
#define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2)
/* Supports custom formats */
#define V4L2_DV_BT_CAP_CUSTOM (1 << 3)
/** struct v4l2_dv_timings_cap - DV timings capabilities
* @type: the type of the timings (same as in struct v4l2_dv_timings)
* @pad: the pad number for which to query capabilities (used with
* v4l-subdev nodes only)
* @bt: the BT656/1120 timings capabilities
*/
struct v4l2_dv_timings_cap {
__u32 type;
__u32 pad;
__u32 reserved[2];
union {
struct v4l2_bt_timings_cap bt;
__u32 raw_data[32];
};
};
/*
* 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; /* enum v4l2_tuner_type */
v4l2_std_id std;
__u32 status;
__u32 capabilities;
__u32 reserved[3];
};
/* 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 */
/* capabilities flags */
#define V4L2_IN_CAP_DV_TIMINGS 0x00000002
/* Supports S_DV_TIMINGS */
#define V4L2_IN_CAP_CUSTOM_TIMINGS V4L2_IN_CAP_DV_TIMINGS
/* For compatibility */
#define V4L2_IN_CAP_STD 0x00000004
/* Supports S_STD */
#define V4L2_IN_CAP_NATIVE_SIZE 0x00000008
/* Supports setting native size */
/*
* 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 capabilities;
__u32 reserved[3];
};
/* Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR 1
#define V4L2_OUTPUT_TYPE_ANALOG 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
/* capabilities flags */
#define V4L2_OUT_CAP_DV_TIMINGS 0x00000002
/* Supports S_DV_TIMINGS */
#define V4L2_OUT_CAP_CUSTOM_TIMINGS V4L2_OUT_CAP_DV_TIMINGS
/* For compatibility */
#define V4L2_OUT_CAP_STD 0x00000004
/* Supports S_STD */
#define V4L2_OUT_CAP_NATIVE_SIZE 0x00000008
/* Supports setting native size */
/*
* C O N T R O L S
*/
struct v4l2_control {
__u32 id;
__s32 value;
};
struct v4l2_ext_control {
__u32 id;
__u32 size;
__u32 reserved2[1];
union {
__s32 value;
__s64 value64;
char __user *string;
__u8 __user *p_u8;
__u16 __user *p_u16;
__u32 __user *p_u32;
void __user *ptr;
};
} __attribute__ ((packed));
struct v4l2_ext_controls {
union {
#ifndef __KERNEL__
__u32 ctrl_class;
#endif
__u32 which;
};
__u32 count;
__u32 error_idx;
__u32 reserved[2];
struct v4l2_ext_control *controls;
};
#define V4L2_CTRL_ID_MASK (0x0fffffff)
#ifndef __KERNEL__
#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL)
#endif
#define V4L2_CTRL_ID2WHICH(id) ((id) & 0x0fff0000UL)
#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
#define V4L2_CTRL_MAX_DIMS (4)
#define V4L2_CTRL_WHICH_CUR_VAL 0
#define V4L2_CTRL_WHICH_DEF_VAL 0x0f000000
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,
V4L2_CTRL_TYPE_STRING = 7,
V4L2_CTRL_TYPE_BITMASK = 8,
V4L2_CTRL_TYPE_INTEGER_MENU = 9,
/* Compound types are >= 0x0100 */
V4L2_CTRL_COMPOUND_TYPES = 0x0100,
V4L2_CTRL_TYPE_U8 = 0x0100,
V4L2_CTRL_TYPE_U16 = 0x0101,
V4L2_CTRL_TYPE_U32 = 0x0102,
};
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
struct v4l2_queryctrl {
__u32 id;
__u32 type; /* enum v4l2_ctrl_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_QUERY_EXT_CTRL ioctl for querying extended controls */
struct v4l2_query_ext_ctrl {
__u32 id;
__u32 type;
char name[32];
__s64 minimum;
__s64 maximum;
__u64 step;
__s64 default_value;
__u32 flags;
__u32 elem_size;
__u32 elems;
__u32 nr_of_dims;
__u32 dims[V4L2_CTRL_MAX_DIMS];
__u32 reserved[32];
};
/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */
struct v4l2_querymenu {
__u32 id;
__u32 index;
union {
__u8 name[32]; /* Whatever */
__s64 value;
};
__u32 reserved;
} __attribute__ ((packed));
/* 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
#define V4L2_CTRL_FLAG_VOLATILE 0x0080
#define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100
#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200
/* Query flags, to be ORed with the control ID */
#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000
#define V4L2_CTRL_FLAG_NEXT_COMPOUND 0x40000000
/* User-class control IDs defined by V4L2 */
#define V4L2_CID_MAX_CTRLS 1024
/* IDs reserved for driver specific controls */
#define V4L2_CID_PRIVATE_BASE 0x08000000
/*
* T U N I N G
*/
struct v4l2_tuner {
__u32 index;
__u8 name[32];
__u32 type; /* enum v4l2_tuner_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 type; /* enum v4l2_tuner_type */
__u32 reserved[3];
};
/* Flags for the 'capability' field */
#define V4L2_TUNER_CAP_LOW 0x0001
#define V4L2_TUNER_CAP_NORM 0x0002
#define V4L2_TUNER_CAP_HWSEEK_BOUNDED 0x0004
#define V4L2_TUNER_CAP_HWSEEK_WRAP 0x0008
#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
#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100
#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200
#define V4L2_TUNER_CAP_FREQ_BANDS 0x0400
#define V4L2_TUNER_CAP_HWSEEK_PROG_LIM 0x0800
#define V4L2_TUNER_CAP_1HZ 0x1000
/* 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 v4l2_frequency {
__u32 tuner;
__u32 type; /* enum v4l2_tuner_type */
__u32 frequency;
__u32 reserved[8];
};
#define V4L2_BAND_MODULATION_VSB (1 << 1)
#define V4L2_BAND_MODULATION_FM (1 << 2)
#define V4L2_BAND_MODULATION_AM (1 << 3)
struct v4l2_frequency_band {
__u32 tuner;
__u32 type; /* enum v4l2_tuner_type */
__u32 index;
__u32 capability;
__u32 rangelow;
__u32 rangehigh;
__u32 modulation;
__u32 reserved[9];
};
struct v4l2_hw_freq_seek {
__u32 tuner;
__u32 type; /* enum v4l2_tuner_type */
__u32 seek_upward;
__u32 wrap_around;
__u32 spacing;
__u32 rangelow;
__u32 rangehigh;
__u32 reserved[5];
};
/*
* R D S
*/
struct v4l2_rds_data {
__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 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
*/
#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;
};
};
/* Decoder commands */
#define V4L2_DEC_CMD_START (0)
#define V4L2_DEC_CMD_STOP (1)
#define V4L2_DEC_CMD_PAUSE (2)
#define V4L2_DEC_CMD_RESUME (3)
/* Flags for V4L2_DEC_CMD_START */
#define V4L2_DEC_CMD_START_MUTE_AUDIO (1 << 0)
/* Flags for V4L2_DEC_CMD_PAUSE */
#define V4L2_DEC_CMD_PAUSE_TO_BLACK (1 << 0)
/* Flags for V4L2_DEC_CMD_STOP */
#define V4L2_DEC_CMD_STOP_TO_BLACK (1 << 0)
#define V4L2_DEC_CMD_STOP_IMMEDIATELY (1 << 1)
/* Play format requirements (returned by the driver): */
/* The decoder has no special format requirements */
#define V4L2_DEC_START_FMT_NONE (0)
/* The decoder requires full GOPs */
#define V4L2_DEC_START_FMT_GOP (1)
/* The structure must be zeroed before use by the application
This ensures it can be extended safely in the future. */
struct v4l2_decoder_cmd {
__u32 cmd;
__u32 flags;
union {
struct {
__u64 pts;
}
stop;
struct {
/* 0 or 1000 specifies normal speed,
1 specifies forward single stepping,
-1 specifies backward single stepping,
>1: playback at speed/1000 of the normal speed,
<-1: reverse playback at (-speed/1000) of the normal speed. */
__s32 speed;
__u32 format;
}
start;
struct {
__u32 data[16];
}
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)
/* ITU-R start lines for each field */
#define V4L2_VBI_ITU_525_F1_START (1)
#define V4L2_VBI_ITU_525_F2_START (264)
#define V4L2_VBI_ITU_625_F1_START (1)
#define V4L2_VBI_ITU_625_F2_START (314)
/* 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];
__u32 type; /* enum v4l2_buf_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];
};
/*
* 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 v4l2_mpeg_vbi_itv0_line {
__u8 id; /* One of V4L2_MPEG_VBI_IVTV_* above */
__u8 data[42]; /* Sliced VBI data for the line */
} __attribute__ ((packed));
struct v4l2_mpeg_vbi_itv0 {
__le32 linemask[2]; /* Bitmasks of VBI service lines present */
struct v4l2_mpeg_vbi_itv0_line line[35];
} __attribute__ ((packed));
struct v4l2_mpeg_vbi_ITV0 {
struct v4l2_mpeg_vbi_itv0_line line[36];
} __attribute__ ((packed));
#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0"
#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0"
struct v4l2_mpeg_vbi_fmt_ivtv {
__u8 magic[4];
union {
struct v4l2_mpeg_vbi_itv0 itv0;
struct v4l2_mpeg_vbi_ITV0 ITV0;
};
} __attribute__ ((packed));
/*
* A G G R E G A T E S T R U C T U R E S
*/
/**
* struct v4l2_plane_pix_format - additional, per-plane format definition
* @sizeimage: maximum size in bytes required for data, for which
* this plane will be used
* @bytesperline: distance in bytes between the leftmost pixels in two
* adjacent lines
*/
struct v4l2_plane_pix_format {
__u32 sizeimage;
__u32 bytesperline;
__u16 reserved[6];
} __attribute__ ((packed));
/**
* struct v4l2_pix_format_mplane - multiplanar format definition
* @width: image width in pixels
* @height: image height in pixels
* @pixelformat: little endian four character code (fourcc)
* @field: enum v4l2_field; field order (for interlaced video)
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
* @plane_fmt: per-plane information
* @num_planes: number of planes for this format
* @flags: format flags (V4L2_PIX_FMT_FLAG_*)
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
* @quantization: enum v4l2_quantization, colorspace quantization
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
*/
struct v4l2_pix_format_mplane {
__u32 width;
__u32 height;
__u32 pixelformat;
__u32 field;
__u32 colorspace;
struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
__u8 num_planes;
__u8 flags;
__u8 ycbcr_enc;
__u8 quantization;
__u8 xfer_func;
__u8 reserved[7];
} __attribute__ ((packed));
/**
* struct v4l2_sdr_format - SDR format definition
* @pixelformat: little endian four character code (fourcc)
* @buffersize: maximum size in bytes required for data
*/
struct v4l2_sdr_format {
__u32 pixelformat;
__u32 buffersize;
__u8 reserved[24];
} __attribute__ ((packed));
/**
* struct v4l2_format - stream data format
* @type: enum v4l2_buf_type; type of the data stream
* @pix: definition of an image format
* @pix_mp: definition of a multiplanar image format
* @win: definition of an overlaid image
* @vbi: raw VBI capture or output parameters
* @sliced: sliced VBI capture or output parameters
* @raw_data: placeholder for future extensions and custom formats
*/
struct v4l2_format {
__u32 type;
union {
struct v4l2_pix_format pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
struct v4l2_pix_format_mplane pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
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 */
struct v4l2_sdr_format sdr; /* V4L2_BUF_TYPE_SDR_CAPTURE */
__u8 raw_data[200]; /* user-defined */
}
fmt;
};
/* Stream type-dependent parameters
*/
struct v4l2_streamparm {
__u32 type; /* enum v4l2_buf_type */
union {
struct v4l2_captureparm capture;
struct v4l2_outputparm output;
__u8 raw_data[200]; /* user-defined */
}
parm;
};
/*
* E V E N T S
*/
#define V4L2_EVENT_ALL 0
#define V4L2_EVENT_VSYNC 1
#define V4L2_EVENT_EOS 2
#define V4L2_EVENT_CTRL 3
#define V4L2_EVENT_FRAME_SYNC 4
#define V4L2_EVENT_SOURCE_CHANGE 5
#define V4L2_EVENT_MOTION_DET 6
#define V4L2_EVENT_PRIVATE_START 0x08000000
/* Payload for V4L2_EVENT_VSYNC */
struct v4l2_event_vsync {
/* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */
__u8 field;
} __attribute__ ((packed));
/* Payload for V4L2_EVENT_CTRL */
#define V4L2_EVENT_CTRL_CH_VALUE (1 << 0)
#define V4L2_EVENT_CTRL_CH_FLAGS (1 << 1)
#define V4L2_EVENT_CTRL_CH_RANGE (1 << 2)
struct v4l2_event_ctrl {
__u32 changes;
__u32 type;
union {
__s32 value;
__s64 value64;
};
__u32 flags;
__s32 minimum;
__s32 maximum;
__s32 step;
__s32 default_value;
};
struct v4l2_event_frame_sync {
__u32 frame_sequence;
};
#define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0)
struct v4l2_event_src_change {
__u32 changes;
};
#define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0)
/**
* struct v4l2_event_motion_det - motion detection event
* @flags: if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the
* frame_sequence field is valid.
* @frame_sequence: the frame sequence number associated with this event.
* @region_mask: which regions detected motion.
*/
struct v4l2_event_motion_det {
__u32 flags;
__u32 frame_sequence;
__u32 region_mask;
};
struct v4l2_event {
__u32 type;
union {
struct v4l2_event_vsync vsync;
struct v4l2_event_ctrl ctrl;
struct v4l2_event_frame_sync frame_sync;
struct v4l2_event_src_change src_change;
struct v4l2_event_motion_det motion_det;
__u8 data[64];
}
u;
__u32 pending;
__u32 sequence;
struct timespec timestamp;
__u32 id;
__u32 reserved[8];
};
#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0)
#define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK (1 << 1)
struct v4l2_event_subscription {
__u32 type;
__u32 id;
__u32 flags;
__u32 reserved[5];
};
/*
* 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_BRIDGE 0
/* Match against chip ID on the bridge (0 for the bridge) */
#define V4L2_CHIP_MATCH_SUBDEV 4
/* Match against subdev index */
/* The following four defines are no longer in use */
#define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE
#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 ancillary AC97 chip */
struct v4l2_dbg_match {
__u32 type; /* Match type */
union { /* Match this chip, meaning determined by type */
__u32 addr;
char name[32];
};
} __attribute__ ((packed));
struct v4l2_dbg_register {
struct v4l2_dbg_match match;
__u32 size; /* register size in bytes */
__u64 reg;
__u64 val;
} __attribute__ ((packed));
#define V4L2_CHIP_FL_READABLE (1 << 0)
#define V4L2_CHIP_FL_WRITABLE (1 << 1)
/* VIDIOC_DBG_G_CHIP_INFO */
struct v4l2_dbg_chip_info {
struct v4l2_dbg_match match;
char name[32];
__u32 flags;
__u32 reserved[32];
} __attribute__ ((packed));
/**
* struct v4l2_create_buffers - VIDIOC_CREATE_BUFS argument
* @index: on return, index of the first created buffer
* @count: entry: number of requested buffers,
* return: number of created buffers
* @memory: enum v4l2_memory; buffer memory type
* @format: frame format, for which buffers are requested
* @reserved: future extensions
*/
struct v4l2_create_buffers {
__u32 index;
__u32 count;
__u32 memory;
struct v4l2_format format;
__u32 reserved[8];
};
/*
* 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_EXPBUF _IOWR('V', 16, struct v4l2_exportbuffer)
#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_EDID _IOWR('V', 40, struct v4l2_edid)
#define VIDIOC_S_EDID _IOWR('V', 41, struct v4l2_edid)
#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, __u32)
/* enum v4l2_priority */
#define VIDIOC_S_PRIORITY _IOW('V', 68, __u32)
/* 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)
#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, 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 v4l2_dbg_register)
#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct v4l2_dbg_register)
#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek)
#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
#define VIDIOC_DQEVENT _IOR('V', 89, struct v4l2_event)
#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct v4l2_event_subscription)
#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
#define VIDIOC_CREATE_BUFS _IOWR('V', 92, struct v4l2_create_buffers)
#define VIDIOC_PREPARE_BUF _IOWR('V', 93, struct v4l2_buffer)
#define VIDIOC_G_SELECTION _IOWR('V', 94, struct v4l2_selection)
#define VIDIOC_S_SELECTION _IOWR('V', 95, struct v4l2_selection)
#define VIDIOC_DECODER_CMD _IOWR('V', 96, struct v4l2_decoder_cmd)
#define VIDIOC_TRY_DECODER_CMD _IOWR('V', 97, struct v4l2_decoder_cmd)
#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)
#define VIDIOC_ENUM_FREQ_BANDS _IOWR('V', 101, struct v4l2_frequency_band)
/*
* Experimental, meant for debugging, testing and internal use.
* Never use this in applications!
*/
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
#define BASE_VIDIOC_PRIVATE 192
/* 192-255 are private */
#endif /* _UAPI__LINUX_VIDEODEV2_H */
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