1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Appendix C. Video For Linux Two Header File</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API"><link rel="up" href="v4l2spec.html" title="Part I. Video for Linux Two API Specification"><link rel="prev" href="apb.html" title="Appendix B. Common definitions for V4L2 and V4L2 subdev interfaces"><link rel="next" href="capture-example.html" title="Appendix D. Video Capture Example"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Appendix C. Video For Linux Two Header File</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="apb.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="capture-example.html">Next</a></td></tr></table><hr></div><div class="appendix"><div class="titlepage"><div><div><h2 class="title"><a name="videodev"></a>Appendix C. Video For Linux Two Header File</h2></div></div></div><pre class="programlisting"> 2/* 3 * Video for Linux Two header file 4 * 5 * Copyright (C) 1999-2012 the contributors 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * Alternatively you can redistribute this file under the terms of the 18 * BSD license as stated below: 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in 27 * the documentation and/or other materials provided with the 28 * distribution. 29 * 3. The names of its contributors may not be used to endorse or promote 30 * products derived from this software without specific prior written 31 * permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 34 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 35 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 36 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 37 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 38 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 39 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 40 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 41 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 42 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 43 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 44 * 45 * Header file for v4l or V4L2 drivers and applications 46 * with public API. 47 * All kernel-specific stuff were moved to media/v4l2-dev.h, so 48 * no #if __KERNEL tests are allowed here 49 * 50 * See http://linuxtv.org for more info 51 * 52 * Author: Bill Dirks <bill@thedirks.org> 53 * Justin Schoeman 54 * Hans Verkuil <hverkuil@xs4all.nl> 55 * et al. 56 */ 57#ifndef _UAPI__LINUX_VIDEODEV2_H 58#define _UAPI__LINUX_VIDEODEV2_H 59 60#ifndef __KERNEL__ 61#include <sys/time.h> 62#endif 63#include <linux/compiler.h> 64#include <linux/ioctl.h> 65#include <linux/types.h> 66#include <linux/v4l2-common.h> 67#include <linux/v4l2-controls.h> 68 69/* 70 * Common stuff for both V4L1 and V4L2 71 * Moved from videodev.h 72 */ 73#define VIDEO_MAX_FRAME 32 74#define VIDEO_MAX_PLANES 8 75 76/* 77 * M I S C E L L A N E O U S 78 */ 79 80/* Four-character-code (FOURCC) */ 81#define v4l2_fourcc(a, b, c, d)\ 82 ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24)) 83#define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1 << 31)) 84 85/* 86 * E N U M S 87 */ 88enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a> { 89 V4L2_FIELD_ANY = 0, /* driver can choose from none, 90 top, bottom, interlaced 91 depending on whatever it thinks 92 is approximate ... */ 93 V4L2_FIELD_NONE = 1, /* this device has no fields ... */ 94 V4L2_FIELD_TOP = 2, /* top field only */ 95 V4L2_FIELD_BOTTOM = 3, /* bottom field only */ 96 V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */ 97 V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one 98 buffer, top-bottom order */ 99 V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */ 100 V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into 101 separate buffers */ 102 V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field 103 first and the top field is 104 transmitted first */ 105 V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field 106 first and the bottom field is 107 transmitted first */ 108}; 109#define V4L2_FIELD_HAS_TOP(field) \ 110 ((field) == V4L2_FIELD_TOP ||\ 111 (field) == V4L2_FIELD_INTERLACED ||\ 112 (field) == V4L2_FIELD_INTERLACED_TB ||\ 113 (field) == V4L2_FIELD_INTERLACED_BT ||\ 114 (field) == V4L2_FIELD_SEQ_TB ||\ 115 (field) == V4L2_FIELD_SEQ_BT) 116#define V4L2_FIELD_HAS_BOTTOM(field) \ 117 ((field) == V4L2_FIELD_BOTTOM ||\ 118 (field) == V4L2_FIELD_INTERLACED ||\ 119 (field) == V4L2_FIELD_INTERLACED_TB ||\ 120 (field) == V4L2_FIELD_INTERLACED_BT ||\ 121 (field) == V4L2_FIELD_SEQ_TB ||\ 122 (field) == V4L2_FIELD_SEQ_BT) 123#define V4L2_FIELD_HAS_BOTH(field) \ 124 ((field) == V4L2_FIELD_INTERLACED ||\ 125 (field) == V4L2_FIELD_INTERLACED_TB ||\ 126 (field) == V4L2_FIELD_INTERLACED_BT ||\ 127 (field) == V4L2_FIELD_SEQ_TB ||\ 128 (field) == V4L2_FIELD_SEQ_BT) 129#define V4L2_FIELD_HAS_T_OR_B(field) \ 130 ((field) == V4L2_FIELD_BOTTOM ||\ 131 (field) == V4L2_FIELD_TOP ||\ 132 (field) == V4L2_FIELD_ALTERNATE) 133 134enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> { 135 V4L2_BUF_TYPE_VIDEO_CAPTURE = 1, 136 V4L2_BUF_TYPE_VIDEO_OUTPUT = 2, 137 V4L2_BUF_TYPE_VIDEO_OVERLAY = 3, 138 V4L2_BUF_TYPE_VBI_CAPTURE = 4, 139 V4L2_BUF_TYPE_VBI_OUTPUT = 5, 140 V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6, 141 V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7, 142#if 1 143 /* Experimental */ 144 V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8, 145#endif 146 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9, 147 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10, 148 V4L2_BUF_TYPE_SDR_CAPTURE = 11, 149 V4L2_BUF_TYPE_SDR_OUTPUT = 12, 150 /* Deprecated, do not use */ 151 V4L2_BUF_TYPE_PRIVATE = 0x80, 152}; 153 154#define V4L2_TYPE_IS_MULTIPLANAR(type) \ 155 ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \ 156 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) 157 158#define V4L2_TYPE_IS_OUTPUT(type) \ 159 ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \ 160 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \ 161 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY \ 162 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \ 163 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT \ 164 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT \ 165 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT) 166 167enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> { 168 V4L2_TUNER_RADIO = 1, 169 V4L2_TUNER_ANALOG_TV = 2, 170 V4L2_TUNER_DIGITAL_TV = 3, 171 V4L2_TUNER_SDR = 4, 172 V4L2_TUNER_RF = 5, 173}; 174 175/* Deprecated, do not use */ 176#define V4L2_TUNER_ADC V4L2_TUNER_SDR 177 178enum <a class="link" href="buffer.html#v4l2-memory" title="Table 3.5. enum v4l2_memory">v4l2_memory</a> { 179 V4L2_MEMORY_MMAP = 1, 180 V4L2_MEMORY_USERPTR = 2, 181 V4L2_MEMORY_OVERLAY = 3, 182 V4L2_MEMORY_DMABUF = 4, 183}; 184 185/* see also http://vektor.theorem.ca/graphics/ycbcr/ */ 186enum <a class="link" href="ch02s05.html#v4l2-colorspace" title="Table 2.4. V4L2 Colorspaces">v4l2_colorspace</a> { 187 /* 188 * Default colorspace, i.e.ie; let the driver figure it out. 189 * Can only be used with video capture. 190 */ 191 V4L2_COLORSPACE_DEFAULT = 0, 192 193 /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */ 194 V4L2_COLORSPACE_SMPTE170M = 1, 195 196 /* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */ 197 V4L2_COLORSPACE_SMPTE240M = 2, 198 199 /* Rec.709: used for HDTV */ 200 V4L2_COLORSPACE_REC709 = 3, 201 202 /* 203 * Deprecated, do not use. No driver will ever return this. This was 204 * based on a misunderstanding of the bt878 datasheet. 205 */ 206 V4L2_COLORSPACE_BT878 = 4, 207 208 /* 209 * NTSC 1953 colorspace. This only makes sense when dealing with 210 * really, really old NTSC recordings. Superseded by SMPTE 170M. 211 */ 212 V4L2_COLORSPACE_470_SYSTEM_M = 5, 213 214 /* 215 * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when 216 * dealing with really old PAL/SECAM recordings. Superseded by 217 * SMPTE 170M. 218 */ 219 V4L2_COLORSPACE_470_SYSTEM_BG = 6, 220 221 /* 222 * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601 223 * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG. 224 */ 225 V4L2_COLORSPACE_JPEG = 7, 226 227 /* For RGB colorspaces such as produces by most webcams. */ 228 V4L2_COLORSPACE_SRGB = 8, 229 230 /* AdobeRGB colorspace */ 231 V4L2_COLORSPACE_ADOBERGB = 9, 232 233 /* BT.2020 colorspace, used for UHDTV. */ 234 V4L2_COLORSPACE_BT2020 = 10, 235 236 /* Raw colorspace: for RAW unprocessed images */ 237 V4L2_COLORSPACE_RAW = 11, 238 239 /* DCI-P3 colorspace, used by cinema projectors */ 240 V4L2_COLORSPACE_DCI_P3 = 12, 241}; 242 243/* 244 * Determine how COLORSPACE_DEFAULT should map to a proper colorspace. 245 * This depends on whether this is a SDTV image (use SMPTE 170M), an 246 * HDTV image (use Rec. 709), or something else (use sRGB). 247 */ 248#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \ 249 ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \ 250 ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB)) 251 252enum <a class="link" href="ch02s05.html#v4l2-xfer-func" title="Table 2.5. V4L2 Transfer Function">v4l2_xfer_func</a> { 253 /* 254 * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions 255 * for the various colorspaces: 256 * 257 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M, 258 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and 259 * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709 260 * 261 * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB 262 * 263 * V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB 264 * 265 * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M 266 * 267 * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE 268 * 269 * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3 270 */ 271 V4L2_XFER_FUNC_DEFAULT = 0, 272 V4L2_XFER_FUNC_709 = 1, 273 V4L2_XFER_FUNC_SRGB = 2, 274 V4L2_XFER_FUNC_ADOBERGB = 3, 275 V4L2_XFER_FUNC_SMPTE240M = 4, 276 V4L2_XFER_FUNC_NONE = 5, 277 V4L2_XFER_FUNC_DCI_P3 = 6, 278 V4L2_XFER_FUNC_SMPTE2084 = 7, 279}; 280 281/* 282 * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function. 283 * This depends on the colorspace. 284 */ 285#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \ 286 ((colsp) == V4L2_COLORSPACE_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \ 287 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \ 288 ((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \ 289 ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \ 290 ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \ 291 V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709))))) 292 293enum <a class="link" href="ch02s05.html#v4l2-ycbcr-encoding" title="Table 2.6. V4L2 Y'CbCr Encodings">v4l2_ycbcr_encoding</a> { 294 /* 295 * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the 296 * various colorspaces: 297 * 298 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M, 299 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_ADOBERGB and 300 * V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601 301 * 302 * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709 303 * 304 * V4L2_COLORSPACE_SRGB: V4L2_YCBCR_ENC_SYCC 305 * 306 * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020 307 * 308 * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M 309 */ 310 V4L2_YCBCR_ENC_DEFAULT = 0, 311 312 /* ITU-R 601 -- SDTV */ 313 V4L2_YCBCR_ENC_601 = 1, 314 315 /* Rec. 709 -- HDTV */ 316 V4L2_YCBCR_ENC_709 = 2, 317 318 /* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */ 319 V4L2_YCBCR_ENC_XV601 = 3, 320 321 /* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */ 322 V4L2_YCBCR_ENC_XV709 = 4, 323 324 /* sYCC (Y'CbCr encoding of sRGB) */ 325 V4L2_YCBCR_ENC_SYCC = 5, 326 327 /* BT.2020 Non-constant Luminance Y'CbCr */ 328 V4L2_YCBCR_ENC_BT2020 = 6, 329 330 /* BT.2020 Constant Luminance Y'CbcCrc */ 331 V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7, 332 333 /* SMPTE 240M -- Obsolete HDTV */ 334 V4L2_YCBCR_ENC_SMPTE240M = 8, 335}; 336 337/* 338 * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding. 339 * This depends on the colorspace. 340 */ 341#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \ 342 (((colsp) == V4L2_COLORSPACE_REC709 || \ 343 (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \ 344 ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \ 345 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \ 346 V4L2_YCBCR_ENC_601))) 347 348enum <a class="link" href="ch02s05.html#v4l2-quantization" title="Table 2.7. V4L2 Quantization Methods">v4l2_quantization</a> { 349 /* 350 * The default for R'G'B' quantization is always full range, except 351 * for the BT2020 colorspace. For Y'CbCr the quantization is always 352 * limited range, except for COLORSPACE_JPEG, SYCC, XV601 or XV709: 353 * those are full range. 354 */ 355 V4L2_QUANTIZATION_DEFAULT = 0, 356 V4L2_QUANTIZATION_FULL_RANGE = 1, 357 V4L2_QUANTIZATION_LIM_RANGE = 2, 358}; 359 360/* 361 * Determine how QUANTIZATION_DEFAULT should map to a proper quantization. 362 * This depends on whether the image is RGB or not, the colorspace and the 363 * Y'CbCr encoding. 364 */ 365#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \ 366 (((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \ 367 (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \ 368 (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \ 369 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)) 370 371enum <a class="link" href="vidioc-g-priority.html#v4l2-priority" title="Table A.83. enum v4l2_priority">v4l2_priority</a> { 372 V4L2_PRIORITY_UNSET = 0, /* not initialized */ 373 V4L2_PRIORITY_BACKGROUND = 1, 374 V4L2_PRIORITY_INTERACTIVE = 2, 375 V4L2_PRIORITY_RECORD = 3, 376 V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE, 377}; 378 379struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> { 380 __s32 left; 381 __s32 top; 382 __u32 width; 383 __u32 height; 384}; 385 386struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> { 387 __u32 numerator; 388 __u32 denominator; 389}; 390 391/** 392 * struct <a class="link" href="vidioc-querycap.html#v4l2-capability" title="Table A.93. struct v4l2_capability">v4l2_capability</a> - Describes V4L2 device caps returned by VIDIOC_QUERYCAP 393 * 394 * @driver: name of the driver module (e.g. "bttv") 395 * @card: name of the card (e.g. "Hauppauge WinTV") 396 * @bus_info: name of the bus (e.g. "PCI:" + pci_name(pci_dev) ) 397 * @version: KERNEL_VERSION 398 * @capabilities: capabilities of the physical device as a whole 399 * @device_caps: capabilities accessed via this particular device (node) 400 * @reserved: reserved fields for future extensions 401 */ 402struct <a class="link" href="vidioc-querycap.html#v4l2-capability" title="Table A.93. struct v4l2_capability">v4l2_capability</a> { 403 __u8 driver[16]; 404 __u8 card[32]; 405 __u8 bus_info[32]; 406 __u32 version; 407 __u32 capabilities; 408 __u32 device_caps; 409 __u32 reserved[3]; 410}; 411 412/* Values for 'capabilities' field */ 413#define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */ 414#define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */ 415#define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */ 416#define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a raw VBI capture device */ 417#define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a raw VBI output device */ 418#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040 /* Is a sliced VBI capture device */ 419#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */ 420#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */ 421#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY 0x00000200 /* Can do video output overlay */ 422#define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */ 423#define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */ 424 425/* Is a video capture device that supports multiplanar formats */ 426#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000 427/* Is a video output device that supports multiplanar formats */ 428#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000 429/* Is a video mem-to-mem device that supports multiplanar formats */ 430#define V4L2_CAP_VIDEO_M2M_MPLANE 0x00004000 431/* Is a video mem-to-mem device */ 432#define V4L2_CAP_VIDEO_M2M 0x00008000 433 434#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */ 435#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */ 436#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */ 437#define V4L2_CAP_MODULATOR 0x00080000 /* has a modulator */ 438 439#define V4L2_CAP_SDR_CAPTURE 0x00100000 /* Is a SDR capture device */ 440#define V4L2_CAP_EXT_PIX_FORMAT 0x00200000 /* Supports the extended pixel format */ 441#define V4L2_CAP_SDR_OUTPUT 0x00400000 /* Is a SDR output device */ 442 443#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */ 444#define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */ 445#define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */ 446 447#define V4L2_CAP_DEVICE_CAPS 0x80000000 /* sets device capabilities field */ 448 449/* 450 * V I D E O I M A G E F O R M A T 451 */ 452struct <a class="link" href="pixfmt.html#v4l2-pix-format" title="Table 2.1. struct v4l2_pix_format">v4l2_pix_format</a> { 453 __u32 width; 454 __u32 height; 455 __u32 pixelformat; 456 __u32 field; /* enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a> */ 457 __u32 bytesperline; /* for padding, zero if unused */ 458 __u32 sizeimage; 459 __u32 colorspace; /* enum <a class="link" href="ch02s05.html#v4l2-colorspace" title="Table 2.4. V4L2 Colorspaces">v4l2_colorspace</a> */ 460 __u32 priv; /* private data, depends on pixelformat */ 461 __u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */ 462 __u32 ycbcr_enc; /* enum <a class="link" href="ch02s05.html#v4l2-ycbcr-encoding" title="Table 2.6. V4L2 Y'CbCr Encodings">v4l2_ycbcr_encoding</a> */ 463 __u32 quantization; /* enum <a class="link" href="ch02s05.html#v4l2-quantization" title="Table 2.7. V4L2 Quantization Methods">v4l2_quantization</a> */ 464 __u32 xfer_func; /* enum <a class="link" href="ch02s05.html#v4l2-xfer-func" title="Table 2.5. V4L2 Transfer Function">v4l2_xfer_func</a> */ 465}; 466 467/* Pixel format FOURCC depth Description */ 468 469/* RGB formats */ 470#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB332">V4L2_PIX_FMT_RGB332</a> v4l2_fourcc('R', 'G', 'B', '1') /* 8 RGB-3-3-2 */ 471#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB444">V4L2_PIX_FMT_RGB444</a> v4l2_fourcc('R', '4', '4', '4') /* 16 xxxxrrrr ggggbbbb */ 472#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-ARGB444">V4L2_PIX_FMT_ARGB444</a> v4l2_fourcc('A', 'R', '1', '2') /* 16 aaaarrrr ggggbbbb */ 473#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-XRGB444">V4L2_PIX_FMT_XRGB444</a> v4l2_fourcc('X', 'R', '1', '2') /* 16 xxxxrrrr ggggbbbb */ 474#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB555">V4L2_PIX_FMT_RGB555</a> v4l2_fourcc('R', 'G', 'B', 'O') /* 16 RGB-5-5-5 */ 475#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-ARGB555">V4L2_PIX_FMT_ARGB555</a> v4l2_fourcc('A', 'R', '1', '5') /* 16 ARGB-1-5-5-5 */ 476#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-XRGB555">V4L2_PIX_FMT_XRGB555</a> v4l2_fourcc('X', 'R', '1', '5') /* 16 XRGB-1-5-5-5 */ 477#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB565">V4L2_PIX_FMT_RGB565</a> v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */ 478#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB555X">V4L2_PIX_FMT_RGB555X</a> v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */ 479#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-ARGB555X">V4L2_PIX_FMT_ARGB555X</a> v4l2_fourcc_be('A', 'R', '1', '5') /* 16 ARGB-5-5-5 BE */ 480#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-XRGB555X">V4L2_PIX_FMT_XRGB555X</a> v4l2_fourcc_be('X', 'R', '1', '5') /* 16 XRGB-5-5-5 BE */ 481#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB565X">V4L2_PIX_FMT_RGB565X</a> v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */ 482#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-BGR666">V4L2_PIX_FMT_BGR666</a> v4l2_fourcc('B', 'G', 'R', 'H') /* 18 BGR-6-6-6 */ 483#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-BGR24">V4L2_PIX_FMT_BGR24</a> v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */ 484#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB24">V4L2_PIX_FMT_RGB24</a> v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */ 485#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-BGR32">V4L2_PIX_FMT_BGR32</a> v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */ 486#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-ABGR32">V4L2_PIX_FMT_ABGR32</a> v4l2_fourcc('A', 'R', '2', '4') /* 32 BGRA-8-8-8-8 */ 487#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-XBGR32">V4L2_PIX_FMT_XBGR32</a> v4l2_fourcc('X', 'R', '2', '4') /* 32 BGRX-8-8-8-8 */ 488#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-RGB32">V4L2_PIX_FMT_RGB32</a> v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */ 489#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-ARGB32">V4L2_PIX_FMT_ARGB32</a> v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */ 490#define <a class="link" href="packed-rgb.html#V4L2-PIX-FMT-XRGB32">V4L2_PIX_FMT_XRGB32</a> v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */ 491 492/* Grey formats */ 493#define <a class="link" href="V4L2-PIX-FMT-GREY.html" title="V4L2_PIX_FMT_GREY ('GREY')">V4L2_PIX_FMT_GREY</a> v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */ 494#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-Y4">V4L2_PIX_FMT_Y4</a> v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */ 495#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-Y6">V4L2_PIX_FMT_Y6</a> v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */ 496#define <a class="link" href="V4L2-PIX-FMT-Y10.html" title="V4L2_PIX_FMT_Y10 ('Y10 ')">V4L2_PIX_FMT_Y10</a> v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */ 497#define <a class="link" href="V4L2-PIX-FMT-Y12.html" title="V4L2_PIX_FMT_Y12 ('Y12 ')">V4L2_PIX_FMT_Y12</a> v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */ 498#define <a class="link" href="V4L2-PIX-FMT-Y16.html" title="V4L2_PIX_FMT_Y16 ('Y16 ')">V4L2_PIX_FMT_Y16</a> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */ 499#define <a class="link" href="V4L2-PIX-FMT-Y16-BE.html" title="V4L2_PIX_FMT_Y16_BE ('Y16 ' | (1 << 31))">V4L2_PIX_FMT_Y16_BE</a> v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */ 500 501/* Grey bit-packed formats */ 502#define <a class="link" href="V4L2-PIX-FMT-Y10BPACK.html" title="V4L2_PIX_FMT_Y10BPACK ('Y10B')">V4L2_PIX_FMT_Y10BPACK</a> v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */ 503 504/* Palette formats */ 505#define <a class="link" href="pixfmt-indexed.html#V4L2-PIX-FMT-PAL8">V4L2_PIX_FMT_PAL8</a> v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */ 506 507/* Chrominance formats */ 508#define <a class="link" href="V4L2-PIX-FMT-UV8.html" title="V4L2_PIX_FMT_UV8 ('UV8')">V4L2_PIX_FMT_UV8</a> v4l2_fourcc('U', 'V', '8', ' ') /* 8 UV 4:4 */ 509 510/* Luminance+Chrominance formats */ 511#define <a class="link" href="re28.html#V4L2-PIX-FMT-YVU410">V4L2_PIX_FMT_YVU410</a> v4l2_fourcc('Y', 'V', 'U', '9') /* 9 YVU 4:1:0 */ 512#define <a class="link" href="re25.html#V4L2-PIX-FMT-YVU420">V4L2_PIX_FMT_YVU420</a> v4l2_fourcc('Y', 'V', '1', '2') /* 12 YVU 4:2:0 */ 513#define <a class="link" href="V4L2-PIX-FMT-YUYV.html" title="V4L2_PIX_FMT_YUYV ('YUYV')">V4L2_PIX_FMT_YUYV</a> v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16 YUV 4:2:2 */ 514#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-YYUV">V4L2_PIX_FMT_YYUV</a> v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16 YUV 4:2:2 */ 515#define <a class="link" href="V4L2-PIX-FMT-YVYU.html" title="V4L2_PIX_FMT_YVYU ('YVYU')">V4L2_PIX_FMT_YVYU</a> v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */ 516#define <a class="link" href="V4L2-PIX-FMT-UYVY.html" title="V4L2_PIX_FMT_UYVY ('UYVY')">V4L2_PIX_FMT_UYVY</a> v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16 YUV 4:2:2 */ 517#define <a class="link" href="V4L2-PIX-FMT-VYUY.html" title="V4L2_PIX_FMT_VYUY ('VYUY')">V4L2_PIX_FMT_VYUY</a> v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */ 518#define <a class="link" href="V4L2-PIX-FMT-YUV422P.html" title="V4L2_PIX_FMT_YUV422P ('422P')">V4L2_PIX_FMT_YUV422P</a> v4l2_fourcc('4', '2', '2', 'P') /* 16 YVU422 planar */ 519#define <a class="link" href="V4L2-PIX-FMT-YUV411P.html" title="V4L2_PIX_FMT_YUV411P ('411P')">V4L2_PIX_FMT_YUV411P</a> v4l2_fourcc('4', '1', '1', 'P') /* 16 YVU411 planar */ 520#define <a class="link" href="V4L2-PIX-FMT-Y41P.html" title="V4L2_PIX_FMT_Y41P ('Y41P')">V4L2_PIX_FMT_Y41P</a> v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */ 521#define <a class="link" href="packed-yuv.html#V4L2-PIX-FMT-YUV444">V4L2_PIX_FMT_YUV444</a> v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */ 522#define <a class="link" href="packed-yuv.html#V4L2-PIX-FMT-YUV555">V4L2_PIX_FMT_YUV555</a> v4l2_fourcc('Y', 'U', 'V', 'O') /* 16 YUV-5-5-5 */ 523#define <a class="link" href="packed-yuv.html#V4L2-PIX-FMT-YUV565">V4L2_PIX_FMT_YUV565</a> v4l2_fourcc('Y', 'U', 'V', 'P') /* 16 YUV-5-6-5 */ 524#define <a class="link" href="packed-yuv.html#V4L2-PIX-FMT-YUV32">V4L2_PIX_FMT_YUV32</a> v4l2_fourcc('Y', 'U', 'V', '4') /* 32 YUV-8-8-8-8 */ 525#define <a class="link" href="re28.html#V4L2-PIX-FMT-YUV410">V4L2_PIX_FMT_YUV410</a> v4l2_fourcc('Y', 'U', 'V', '9') /* 9 YUV 4:1:0 */ 526#define <a class="link" href="re25.html#V4L2-PIX-FMT-YUV420">V4L2_PIX_FMT_YUV420</a> v4l2_fourcc('Y', 'U', '1', '2') /* 12 YUV 4:2:0 */ 527#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-HI240">V4L2_PIX_FMT_HI240</a> v4l2_fourcc('H', 'I', '2', '4') /* 8 8-bit color */ 528#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-HM12">V4L2_PIX_FMT_HM12</a> v4l2_fourcc('H', 'M', '1', '2') /* 8 YUV 4:2:0 16x16 macroblocks */ 529#define <a class="link" href="V4L2-PIX-FMT-M420.html" title="V4L2_PIX_FMT_M420 ('M420')">V4L2_PIX_FMT_M420</a> v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */ 530 531/* two planes -- one Y, one Cr + Cb interleaved */ 532#define <a class="link" href="re31.html#V4L2-PIX-FMT-NV12">V4L2_PIX_FMT_NV12</a> v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */ 533#define <a class="link" href="re31.html#V4L2-PIX-FMT-NV21">V4L2_PIX_FMT_NV21</a> v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */ 534#define <a class="link" href="re34.html#V4L2-PIX-FMT-NV16">V4L2_PIX_FMT_NV16</a> v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ 535#define <a class="link" href="re34.html#V4L2-PIX-FMT-NV61">V4L2_PIX_FMT_NV61</a> v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ 536#define <a class="link" href="re36.html#V4L2-PIX-FMT-NV24">V4L2_PIX_FMT_NV24</a> v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */ 537#define <a class="link" href="re36.html#V4L2-PIX-FMT-NV42">V4L2_PIX_FMT_NV42</a> v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */ 538 539/* two non contiguous planes - one Y, one Cr + Cb interleaved */ 540#define <a class="link" href="re32.html#V4L2-PIX-FMT-NV12M">V4L2_PIX_FMT_NV12M</a> v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */ 541#define <a class="link" href="re32.html#V4L2-PIX-FMT-NV21M">V4L2_PIX_FMT_NV21M</a> v4l2_fourcc('N', 'M', '2', '1') /* 21 Y/CrCb 4:2:0 */ 542#define <a class="link" href="re35.html#V4L2-PIX-FMT-NV16M">V4L2_PIX_FMT_NV16M</a> v4l2_fourcc('N', 'M', '1', '6') /* 16 Y/CbCr 4:2:2 */ 543#define <a class="link" href="re35.html#V4L2-PIX-FMT-NV61M">V4L2_PIX_FMT_NV61M</a> v4l2_fourcc('N', 'M', '6', '1') /* 16 Y/CrCb 4:2:2 */ 544#define <a class="link" href="re33.html#V4L2-PIX-FMT-NV12MT">V4L2_PIX_FMT_NV12MT</a> v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */ 545#define <a class="link" href="re32.html#V4L2-PIX-FMT-NV12MT-16X16">V4L2_PIX_FMT_NV12MT_16X16</a> v4l2_fourcc('V', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 macroblocks */ 546 547/* three non contiguous planes - Y, Cb, Cr */ 548#define <a class="link" href="V4L2-PIX-FMT-YUV420M.html" title="V4L2_PIX_FMT_YUV420M ('YM12')">V4L2_PIX_FMT_YUV420M</a> v4l2_fourcc('Y', 'M', '1', '2') /* 12 YUV420 planar */ 549#define <a class="link" href="V4L2-PIX-FMT-YVU420M.html" title="V4L2_PIX_FMT_YVU420M ('YM21')">V4L2_PIX_FMT_YVU420M</a> v4l2_fourcc('Y', 'M', '2', '1') /* 12 YVU420 planar */ 550 551/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */ 552#define <a class="link" href="V4L2-PIX-FMT-SBGGR8.html" title="V4L2_PIX_FMT_SBGGR8 ('BA81')">V4L2_PIX_FMT_SBGGR8</a> v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */ 553#define <a class="link" href="V4L2-PIX-FMT-SGBRG8.html" title="V4L2_PIX_FMT_SGBRG8 ('GBRG')">V4L2_PIX_FMT_SGBRG8</a> v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */ 554#define <a class="link" href="V4L2-PIX-FMT-SGRBG8.html" title="V4L2_PIX_FMT_SGRBG8 ('GRBG')">V4L2_PIX_FMT_SGRBG8</a> v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */ 555#define <a class="link" href="V4L2-PIX-FMT-SRGGB8.html" title="V4L2_PIX_FMT_SRGGB8 ('RGGB')">V4L2_PIX_FMT_SRGGB8</a> v4l2_fourcc('R', 'G', 'G', 'B') /* 8 RGRG.. GBGB.. */ 556#define <a class="link" href="pixfmt-srggb10.html#V4L2-PIX-FMT-SBGGR10">V4L2_PIX_FMT_SBGGR10</a> v4l2_fourcc('B', 'G', '1', '0') /* 10 BGBG.. GRGR.. */ 557#define <a class="link" href="pixfmt-srggb10.html#V4L2-PIX-FMT-SGBRG10">V4L2_PIX_FMT_SGBRG10</a> v4l2_fourcc('G', 'B', '1', '0') /* 10 GBGB.. RGRG.. */ 558#define <a class="link" href="pixfmt-srggb10.html#V4L2-PIX-FMT-SGRBG10">V4L2_PIX_FMT_SGRBG10</a> v4l2_fourcc('B', 'A', '1', '0') /* 10 GRGR.. BGBG.. */ 559#define <a class="link" href="pixfmt-srggb10.html#V4L2-PIX-FMT-SRGGB10">V4L2_PIX_FMT_SRGGB10</a> v4l2_fourcc('R', 'G', '1', '0') /* 10 RGRG.. GBGB.. */ 560 /* 10bit raw bayer packed, 5 bytes for every 4 pixels */ 561#define <a class="link" href="pixfmt-srggb10p.html#V4L2-PIX-FMT-SBGGR10P">V4L2_PIX_FMT_SBGGR10P</a> v4l2_fourcc('p', 'B', 'A', 'A') 562#define <a class="link" href="pixfmt-srggb10p.html#V4L2-PIX-FMT-SGBRG10P">V4L2_PIX_FMT_SGBRG10P</a> v4l2_fourcc('p', 'G', 'A', 'A') 563#define <a class="link" href="pixfmt-srggb10p.html#V4L2-PIX-FMT-SGRBG10P">V4L2_PIX_FMT_SGRBG10P</a> v4l2_fourcc('p', 'g', 'A', 'A') 564#define <a class="link" href="pixfmt-srggb10p.html#V4L2-PIX-FMT-SRGGB10P">V4L2_PIX_FMT_SRGGB10P</a> v4l2_fourcc('p', 'R', 'A', 'A') 565 /* 10bit raw bayer a-law compressed to 8 bits */ 566#define <a class="link" href="re09.html#V4L2-PIX-FMT-SBGGR10ALAW8">V4L2_PIX_FMT_SBGGR10ALAW8</a> v4l2_fourcc('a', 'B', 'A', '8') 567#define <a class="link" href="re09.html#V4L2-PIX-FMT-SGBRG10ALAW8">V4L2_PIX_FMT_SGBRG10ALAW8</a> v4l2_fourcc('a', 'G', 'A', '8') 568#define <a class="link" href="re09.html#V4L2-PIX-FMT-SGRBG10ALAW8">V4L2_PIX_FMT_SGRBG10ALAW8</a> v4l2_fourcc('a', 'g', 'A', '8') 569#define <a class="link" href="re09.html#V4L2-PIX-FMT-SRGGB10ALAW8">V4L2_PIX_FMT_SRGGB10ALAW8</a> v4l2_fourcc('a', 'R', 'A', '8') 570 /* 10bit raw bayer DPCM compressed to 8 bits */ 571#define <a class="link" href="pixfmt-srggb10dpcm8.html#V4L2-PIX-FMT-SBGGR10DPCM8">V4L2_PIX_FMT_SBGGR10DPCM8</a> v4l2_fourcc('b', 'B', 'A', '8') 572#define <a class="link" href="pixfmt-srggb10dpcm8.html#V4L2-PIX-FMT-SGBRG10DPCM8">V4L2_PIX_FMT_SGBRG10DPCM8</a> v4l2_fourcc('b', 'G', 'A', '8') 573#define <a class="link" href="pixfmt-srggb10dpcm8.html#V4L2-PIX-FMT-SGRBG10DPCM8">V4L2_PIX_FMT_SGRBG10DPCM8</a> v4l2_fourcc('B', 'D', '1', '0') 574#define <a class="link" href="pixfmt-srggb10dpcm8.html#V4L2-PIX-FMT-SRGGB10DPCM8">V4L2_PIX_FMT_SRGGB10DPCM8</a> v4l2_fourcc('b', 'R', 'A', '8') 575#define <a class="link" href="re11.html#V4L2-PIX-FMT-SBGGR12">V4L2_PIX_FMT_SBGGR12</a> v4l2_fourcc('B', 'G', '1', '2') /* 12 BGBG.. GRGR.. */ 576#define <a class="link" href="re11.html#V4L2-PIX-FMT-SGBRG12">V4L2_PIX_FMT_SGBRG12</a> v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */ 577#define <a class="link" href="re11.html#V4L2-PIX-FMT-SGRBG12">V4L2_PIX_FMT_SGRBG12</a> v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */ 578#define <a class="link" href="re11.html#V4L2-PIX-FMT-SRGGB12">V4L2_PIX_FMT_SRGGB12</a> v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */ 579#define <a class="link" href="V4L2-PIX-FMT-SBGGR16.html" title="V4L2_PIX_FMT_SBGGR16 ('BYR2')">V4L2_PIX_FMT_SBGGR16</a> v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */ 580 581/* compressed formats */ 582#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-MJPEG">V4L2_PIX_FMT_MJPEG</a> v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */ 583#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-JPEG">V4L2_PIX_FMT_JPEG</a> v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */ 584#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-DV">V4L2_PIX_FMT_DV</a> v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */ 585#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-MPEG">V4L2_PIX_FMT_MPEG</a> v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */ 586#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-H264">V4L2_PIX_FMT_H264</a> v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */ 587#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-H264-NO-SC">V4L2_PIX_FMT_H264_NO_SC</a> v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */ 588#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-H264-MVC">V4L2_PIX_FMT_H264_MVC</a> v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */ 589#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-H263">V4L2_PIX_FMT_H263</a> v4l2_fourcc('H', '2', '6', '3') /* H263 */ 590#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-MPEG1">V4L2_PIX_FMT_MPEG1</a> v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ 591#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-MPEG2">V4L2_PIX_FMT_MPEG2</a> v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */ 592#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-MPEG4">V4L2_PIX_FMT_MPEG4</a> v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */ 593#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-XVID">V4L2_PIX_FMT_XVID</a> v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */ 594#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-VC1-ANNEX-G">V4L2_PIX_FMT_VC1_ANNEX_G</a> v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */ 595#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-VC1-ANNEX-L">V4L2_PIX_FMT_VC1_ANNEX_L</a> v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */ 596#define <a class="link" href="ch02s11.html#V4L2-PIX-FMT-VP8">V4L2_PIX_FMT_VP8</a> v4l2_fourcc('V', 'P', '8', '0') /* VP8 */ 597 598/* Vendor-specific formats */ 599#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-CPIA1">V4L2_PIX_FMT_CPIA1</a> v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */ 600#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-WNVA">V4L2_PIX_FMT_WNVA</a> v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */ 601#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SN9C10X">V4L2_PIX_FMT_SN9C10X</a> v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */ 602#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SN9C20X-I420">V4L2_PIX_FMT_SN9C20X_I420</a> v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */ 603#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-PWC1">V4L2_PIX_FMT_PWC1</a> v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */ 604#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-PWC2">V4L2_PIX_FMT_PWC2</a> v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */ 605#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-ET61X251">V4L2_PIX_FMT_ET61X251</a> v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */ 606#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SPCA501">V4L2_PIX_FMT_SPCA501</a> v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */ 607#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SPCA505">V4L2_PIX_FMT_SPCA505</a> v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */ 608#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SPCA508">V4L2_PIX_FMT_SPCA508</a> v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */ 609#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SPCA561">V4L2_PIX_FMT_SPCA561</a> v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */ 610#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-PAC207">V4L2_PIX_FMT_PAC207</a> v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */ 611#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-MR97310A">V4L2_PIX_FMT_MR97310A</a> v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */ 612#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-JL2005BCD">V4L2_PIX_FMT_JL2005BCD</a> v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */ 613#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SN9C2028">V4L2_PIX_FMT_SN9C2028</a> v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */ 614#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SQ905C">V4L2_PIX_FMT_SQ905C</a> v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */ 615#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-PJPG">V4L2_PIX_FMT_PJPG</a> v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */ 616#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-OV511">V4L2_PIX_FMT_OV511</a> v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */ 617#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-OV518">V4L2_PIX_FMT_OV518</a> v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */ 618#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-STV0680">V4L2_PIX_FMT_STV0680</a> v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */ 619#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-TM6000">V4L2_PIX_FMT_TM6000</a> v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */ 620#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-CIT-YYVYUY">V4L2_PIX_FMT_CIT_YYVYUY</a> v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */ 621#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-KONICA420">V4L2_PIX_FMT_KONICA420</a> v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */ 622#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-JPGL">V4L2_PIX_FMT_JPGL</a> v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */ 623#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-SE401">V4L2_PIX_FMT_SE401</a> v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */ 624#define <a class="link" href="pixfmt-reserved.html#V4L2-PIX-FMT-S5C-UYVY-JPG">V4L2_PIX_FMT_S5C_UYVY_JPG</a> v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */ 625 626/* SDR formats - used only for Software Defined Radio devices */ 627#define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */ 628#define V4L2_SDR_FMT_CU16LE v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */ 629#define V4L2_SDR_FMT_CS8 v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */ 630#define V4L2_SDR_FMT_CS14LE v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */ 631#define V4L2_SDR_FMT_RU12LE v4l2_fourcc('R', 'U', '1', '2') /* real u12le */ 632 633/* priv field value to indicates that subsequent fields are valid. */ 634#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe 635 636/* Flags */ 637#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA 0x00000001 638 639/* 640 * F O R M A T E N U M E R A T I O N 641 */ 642struct <a class="link" href="vidioc-enum-fmt.html#v4l2-fmtdesc" title="Table A.28. struct v4l2_fmtdesc">v4l2_fmtdesc</a> { 643 __u32 index; /* Format number */ 644 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 645 __u32 flags; 646 __u8 description[32]; /* Description string */ 647 __u32 pixelformat; /* Format fourcc */ 648 __u32 reserved[4]; 649}; 650 651#define V4L2_FMT_FLAG_COMPRESSED 0x0001 652#define V4L2_FMT_FLAG_EMULATED 0x0002 653 654#if 1 655 /* Experimental Frame Size and frame rate enumeration */ 656/* 657 * F R A M E S I Z E E N U M E R A T I O N 658 */ 659enum <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsizetypes" title="Table A.33. enum v4l2_frmsizetypes">v4l2_frmsizetypes</a> { 660 V4L2_FRMSIZE_TYPE_DISCRETE = 1, 661 V4L2_FRMSIZE_TYPE_CONTINUOUS = 2, 662 V4L2_FRMSIZE_TYPE_STEPWISE = 3, 663}; 664 665struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsize-discrete" title="Table A.30. struct v4l2_frmsize_discrete">v4l2_frmsize_discrete</a> { 666 __u32 width; /* Frame width [pixel] */ 667 __u32 height; /* Frame height [pixel] */ 668}; 669 670struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsize-stepwise" title="Table A.31. struct v4l2_frmsize_stepwise">v4l2_frmsize_stepwise</a> { 671 __u32 min_width; /* Minimum frame width [pixel] */ 672 __u32 max_width; /* Maximum frame width [pixel] */ 673 __u32 step_width; /* Frame width step size [pixel] */ 674 __u32 min_height; /* Minimum frame height [pixel] */ 675 __u32 max_height; /* Maximum frame height [pixel] */ 676 __u32 step_height; /* Frame height step size [pixel] */ 677}; 678 679struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsizeenum" title="Table A.32. struct v4l2_frmsizeenum">v4l2_frmsizeenum</a> { 680 __u32 index; /* Frame size number */ 681 __u32 pixel_format; /* Pixel format */ 682 __u32 type; /* Frame size type the device supports. */ 683 684 union { /* Frame size */ 685 struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsize-discrete" title="Table A.30. struct v4l2_frmsize_discrete">v4l2_frmsize_discrete</a> discrete; 686 struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsize-stepwise" title="Table A.31. struct v4l2_frmsize_stepwise">v4l2_frmsize_stepwise</a> stepwise; 687 }; 688 689 __u32 reserved[2]; /* Reserved space for future use */ 690}; 691 692/* 693 * F R A M E R A T E E N U M E R A T I O N 694 */ 695enum <a class="link" href="vidioc-enum-frameintervals.html#v4l2-frmivaltypes" title="Table A.36. enum v4l2_frmivaltypes">v4l2_frmivaltypes</a> { 696 V4L2_FRMIVAL_TYPE_DISCRETE = 1, 697 V4L2_FRMIVAL_TYPE_CONTINUOUS = 2, 698 V4L2_FRMIVAL_TYPE_STEPWISE = 3, 699}; 700 701struct <a class="link" href="vidioc-enum-frameintervals.html#v4l2-frmival-stepwise" title="Table A.34. struct v4l2_frmival_stepwise">v4l2_frmival_stepwise</a> { 702 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> min; /* Minimum frame interval [s] */ 703 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> max; /* Maximum frame interval [s] */ 704 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> step; /* Frame interval step size [s] */ 705}; 706 707struct <a class="link" href="vidioc-enum-frameintervals.html#v4l2-frmivalenum" title="Table A.35. struct v4l2_frmivalenum">v4l2_frmivalenum</a> { 708 __u32 index; /* Frame format index */ 709 __u32 pixel_format; /* Pixel format */ 710 __u32 width; /* Frame width */ 711 __u32 height; /* Frame height */ 712 __u32 type; /* Frame interval type the device supports. */ 713 714 union { /* Frame interval */ 715 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> discrete; 716 struct <a class="link" href="vidioc-enum-frameintervals.html#v4l2-frmival-stepwise" title="Table A.34. struct v4l2_frmival_stepwise">v4l2_frmival_stepwise</a> stepwise; 717 }; 718 719 __u32 reserved[2]; /* Reserved space for future use */ 720}; 721#endif 722 723/* 724 * T I M E C O D E 725 */ 726struct <a class="link" href="buffer.html#v4l2-timecode" title="Table 3.6. struct v4l2_timecode">v4l2_timecode</a> { 727 __u32 type; 728 __u32 flags; 729 __u8 frames; 730 __u8 seconds; 731 __u8 minutes; 732 __u8 hours; 733 __u8 userbits[4]; 734}; 735 736/* Type */ 737#define V4L2_TC_TYPE_24FPS 1 738#define V4L2_TC_TYPE_25FPS 2 739#define V4L2_TC_TYPE_30FPS 3 740#define V4L2_TC_TYPE_50FPS 4 741#define V4L2_TC_TYPE_60FPS 5 742 743/* Flags */ 744#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */ 745#define V4L2_TC_FLAG_COLORFRAME 0x0002 746#define V4L2_TC_USERBITS_field 0x000C 747#define V4L2_TC_USERBITS_USERDEFINED 0x0000 748#define V4L2_TC_USERBITS_8BITCHARS 0x0008 749/* The above is based on SMPTE timecodes */ 750 751struct <a class="link" href="vidioc-g-jpegcomp.html#v4l2-jpegcompression" title="Table A.74. struct v4l2_jpegcompression">v4l2_jpegcompression</a> { 752 int quality; 753 754 int APPn; /* Number of APP segment to be written, 755 * must be 0..15 */ 756 int APP_len; /* Length of data in JPEG APPn segment */ 757 char APP_data[60]; /* Data in the JPEG APPn segment. */ 758 759 int COM_len; /* Length of data in JPEG COM segment */ 760 char COM_data[60]; /* Data in JPEG COM segment */ 761 762 __u32 jpeg_markers; /* Which markers should go into the JPEG 763 * output. Unless you exactly know what 764 * you do, leave them untouched. 765 * Including less markers will make the 766 * resulting code smaller, but there will 767 * be fewer applications which can read it. 768 * The presence of the APP and COM marker 769 * is influenced by APP_len and COM_len 770 * ONLY, not by this property! */ 771 772#define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */ 773#define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */ 774#define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ 775#define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */ 776#define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will 777 * always use APP0 */ 778}; 779 780/* 781 * M E M O R Y - M A P P I N G B U F F E R S 782 */ 783struct <a class="link" href="vidioc-reqbufs.html#v4l2-requestbuffers" title="Table A.100. struct v4l2_requestbuffers">v4l2_requestbuffers</a> { 784 __u32 count; 785 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 786 __u32 memory; /* enum <a class="link" href="buffer.html#v4l2-memory" title="Table 3.5. enum v4l2_memory">v4l2_memory</a> */ 787 __u32 reserved[2]; 788}; 789 790/** 791 * struct <a class="link" href="buffer.html#v4l2-plane" title="Table 3.2. struct v4l2_plane">v4l2_plane</a> - plane info for multi-planar buffers 792 * @bytesused: number of bytes occupied by data in the plane (payload) 793 * @length: size of this plane (NOT the payload) in bytes 794 * @mem_offset: when memory in the associated struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a> is 795 * V4L2_MEMORY_MMAP, equals the offset from the start of 796 * the device memory for this plane (or is a "cookie" that 797 * should be passed to mmap() called on the video node) 798 * @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer 799 * pointing to this plane 800 * @fd: when memory is V4L2_MEMORY_DMABUF, a userspace file 801 * descriptor associated with this plane 802 * @data_offset: offset in the plane to the start of data; usually 0, 803 * unless there is a header in front of the data 804 * 805 * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer 806 * with two planes can have one plane for Y, and another for interleaved CbCr 807 * components. Each plane can reside in a separate memory buffer, or even in 808 * a completely separate memory node (e.g. in embedded devices). 809 */ 810struct <a class="link" href="buffer.html#v4l2-plane" title="Table 3.2. struct v4l2_plane">v4l2_plane</a> { 811 __u32 bytesused; 812 __u32 length; 813 union { 814 __u32 mem_offset; 815 unsigned long userptr; 816 __s32 fd; 817 } m; 818 __u32 data_offset; 819 __u32 reserved[11]; 820}; 821 822/** 823 * struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a> - video buffer info 824 * @index: id number of the buffer 825 * @type: enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a>; buffer type (type == *_MPLANE for 826 * multiplanar buffers); 827 * @bytesused: number of bytes occupied by data in the buffer (payload); 828 * unused (set to 0) for multiplanar buffers 829 * @flags: buffer informational flags 830 * @field: enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a>; field order of the image in the buffer 831 * @timestamp: frame timestamp 832 * @timecode: frame timecode 833 * @sequence: sequence count of this frame 834 * @memory: enum <a class="link" href="buffer.html#v4l2-memory" title="Table 3.5. enum v4l2_memory">v4l2_memory</a>; the method, in which the actual video data is 835 * passed 836 * @offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP; 837 * offset from the start of the device memory for this plane, 838 * (or a "cookie" that should be passed to mmap() as offset) 839 * @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR; 840 * a userspace pointer pointing to this buffer 841 * @fd: for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF; 842 * a userspace file descriptor associated with this buffer 843 * @planes: for multiplanar buffers; userspace pointer to the array of plane 844 * info structs for this buffer 845 * @length: size in bytes of the buffer (NOT its payload) for single-plane 846 * buffers (when type != *_MPLANE); number of elements in the 847 * planes array for multi-plane buffers 848 * 849 * Contains data exchanged by application and driver using one of the Streaming 850 * I/O methods. 851 */ 852struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a> { 853 __u32 index; 854 __u32 type; 855 __u32 bytesused; 856 __u32 flags; 857 __u32 field; 858 struct timeval timestamp; 859 struct <a class="link" href="buffer.html#v4l2-timecode" title="Table 3.6. struct v4l2_timecode">v4l2_timecode</a> timecode; 860 __u32 sequence; 861 862 /* memory location */ 863 __u32 memory; 864 union { 865 __u32 offset; 866 unsigned long userptr; 867 struct <a class="link" href="buffer.html#v4l2-plane" title="Table 3.2. struct v4l2_plane">v4l2_plane</a> *planes; 868 __s32 fd; 869 } m; 870 __u32 length; 871 __u32 reserved2; 872 __u32 reserved; 873}; 874 875/* Flags for 'flags' field */ 876/* Buffer is mapped (flag) */ 877#define V4L2_BUF_FLAG_MAPPED 0x00000001 878/* Buffer is queued for processing */ 879#define V4L2_BUF_FLAG_QUEUED 0x00000002 880/* Buffer is ready */ 881#define V4L2_BUF_FLAG_DONE 0x00000004 882/* Image is a keyframe (I-frame) */ 883#define V4L2_BUF_FLAG_KEYFRAME 0x00000008 884/* Image is a P-frame */ 885#define V4L2_BUF_FLAG_PFRAME 0x00000010 886/* Image is a B-frame */ 887#define V4L2_BUF_FLAG_BFRAME 0x00000020 888/* Buffer is ready, but the data contained within is corrupted. */ 889#define V4L2_BUF_FLAG_ERROR 0x00000040 890/* timecode field is valid */ 891#define V4L2_BUF_FLAG_TIMECODE 0x00000100 892/* Buffer is prepared for queuing */ 893#define V4L2_BUF_FLAG_PREPARED 0x00000400 894/* Cache handling flags */ 895#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x00000800 896#define V4L2_BUF_FLAG_NO_CACHE_CLEAN 0x00001000 897/* Timestamp type */ 898#define V4L2_BUF_FLAG_TIMESTAMP_MASK 0x0000e000 899#define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x00000000 900#define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC 0x00002000 901#define V4L2_BUF_FLAG_TIMESTAMP_COPY 0x00004000 902/* Timestamp sources. */ 903#define V4L2_BUF_FLAG_TSTAMP_SRC_MASK 0x00070000 904#define V4L2_BUF_FLAG_TSTAMP_SRC_EOF 0x00000000 905#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000 906/* mem2mem encoder/decoder */ 907#define V4L2_BUF_FLAG_LAST 0x00100000 908 909/** 910 * struct <a class="link" href="vidioc-expbuf.html#v4l2-exportbuffer" title="Table A.50. struct v4l2_exportbuffer">v4l2_exportbuffer</a> - export of video buffer as DMABUF file descriptor 911 * 912 * @index: id number of the buffer 913 * @type: enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a>; buffer type (type == *_MPLANE for 914 * multiplanar buffers); 915 * @plane: index of the plane to be exported, 0 for single plane queues 916 * @flags: flags for newly created file, currently only O_CLOEXEC is 917 * supported, refer to manual of open syscall for more details 918 * @fd: file descriptor associated with DMABUF (set by driver) 919 * 920 * Contains data used for exporting a video buffer as DMABUF file descriptor. 921 * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF 922 * (identical to the cookie used to mmap() the buffer to userspace). All 923 * reserved fields must be set to zero. The field reserved0 is expected to 924 * become a structure 'type' allowing an alternative layout of the structure 925 * content. Therefore this field should not be used for any other extensions. 926 */ 927struct <a class="link" href="vidioc-expbuf.html#v4l2-exportbuffer" title="Table A.50. struct v4l2_exportbuffer">v4l2_exportbuffer</a> { 928 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 929 __u32 index; 930 __u32 plane; 931 __u32 flags; 932 __s32 fd; 933 __u32 reserved[11]; 934}; 935 936/* 937 * O V E R L A Y P R E V I E W 938 */ 939struct <a class="link" href="vidioc-g-fbuf.html#v4l2-framebuffer" title="Table A.69. struct v4l2_framebuffer">v4l2_framebuffer</a> { 940 __u32 capability; 941 __u32 flags; 942/* FIXME: in theory we should pass something like PCI device + memory 943 * region + offset instead of some physical address */ 944 void *base; 945 struct { 946 __u32 width; 947 __u32 height; 948 __u32 pixelformat; 949 __u32 field; /* enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a> */ 950 __u32 bytesperline; /* for padding, zero if unused */ 951 __u32 sizeimage; 952 __u32 colorspace; /* enum <a class="link" href="ch02s05.html#v4l2-colorspace" title="Table 2.4. V4L2 Colorspaces">v4l2_colorspace</a> */ 953 __u32 priv; /* reserved field, set to 0 */ 954 } fmt; 955}; 956/* Flags for the 'capability' field. Read only */ 957#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001 958#define V4L2_FBUF_CAP_CHROMAKEY 0x0002 959#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004 960#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008 961#define V4L2_FBUF_CAP_LOCAL_ALPHA 0x0010 962#define V4L2_FBUF_CAP_GLOBAL_ALPHA 0x0020 963#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA 0x0040 964#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080 965/* Flags for the 'flags' field. */ 966#define V4L2_FBUF_FLAG_PRIMARY 0x0001 967#define V4L2_FBUF_FLAG_OVERLAY 0x0002 968#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004 969#define V4L2_FBUF_FLAG_LOCAL_ALPHA 0x0008 970#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010 971#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA 0x0020 972#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040 973 974struct <a class="link" href="overlay.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> { 975 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> c; 976 struct <a class="link" href="overlay.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> __user *next; 977}; 978 979struct <a class="link" href="overlay.html#v4l2-window" title="Table 4.1. struct v4l2_window">v4l2_window</a> { 980 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> w; 981 __u32 field; /* enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a> */ 982 __u32 chromakey; 983 struct <a class="link" href="overlay.html#v4l2-clip" title="Table 4.2. struct v4l2_clip">v4l2_clip</a> __user *clips; 984 __u32 clipcount; 985 void __user *bitmap; 986 __u8 global_alpha; 987}; 988 989/* 990 * C A P T U R E P A R A M E T E R S 991 */ 992struct <a class="link" href="vidioc-g-parm.html#v4l2-captureparm" title="Table A.79. struct v4l2_captureparm">v4l2_captureparm</a> { 993 __u32 capability; /* Supported modes */ 994 __u32 capturemode; /* Current mode */ 995 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> timeperframe; /* Time per frame in seconds */ 996 __u32 extendedmode; /* Driver-specific extensions */ 997 __u32 readbuffers; /* # of buffers for read */ 998 __u32 reserved[4]; 999}; 1000 1001/* Flags for 'capability' and 'capturemode' fields */ 1002#define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */ 1003#define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */ 1004 1005struct <a class="link" href="vidioc-g-parm.html#v4l2-outputparm" title="Table A.80. struct v4l2_outputparm">v4l2_outputparm</a> { 1006 __u32 capability; /* Supported modes */ 1007 __u32 outputmode; /* Current mode */ 1008 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> timeperframe; /* Time per frame in seconds */ 1009 __u32 extendedmode; /* Driver-specific extensions */ 1010 __u32 writebuffers; /* # of buffers for write */ 1011 __u32 reserved[4]; 1012}; 1013 1014/* 1015 * I N P U T I M A G E C R O P P I N G 1016 */ 1017struct <a class="link" href="vidioc-cropcap.html#v4l2-cropcap" title="Table A.2. struct v4l2_cropcap">v4l2_cropcap</a> { 1018 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 1019 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> bounds; 1020 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> defrect; 1021 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> pixelaspect; 1022}; 1023 1024struct <a class="link" href="vidioc-g-crop.html#v4l2-crop" title="Table A.55. struct v4l2_crop">v4l2_crop</a> { 1025 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 1026 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> c; 1027}; 1028 1029/** 1030 * struct <a class="link" href="vidioc-g-selection.html#v4l2-selection" title="Table A.84. struct v4l2_selection">v4l2_selection</a> - selection info 1031 * @type: buffer type (do not use *_MPLANE types) 1032 * @target: Selection target, used to choose one of possible rectangles; 1033 * defined in v4l2-common.h; V4L2_SEL_TGT_* . 1034 * @flags: constraints flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*. 1035 * @r: coordinates of selection window 1036 * @reserved: for future use, rounds structure size to 64 bytes, set to zero 1037 * 1038 * Hardware may use multiple helper windows to process a video stream. 1039 * The structure is used to exchange this selection areas between 1040 * an application and a driver. 1041 */ 1042struct <a class="link" href="vidioc-g-selection.html#v4l2-selection" title="Table A.84. struct v4l2_selection">v4l2_selection</a> { 1043 __u32 type; 1044 __u32 target; 1045 __u32 flags; 1046 struct <a class="link" href="overlay.html#v4l2-rect" title="Table 4.3. struct v4l2_rect">v4l2_rect</a> r; 1047 __u32 reserved[9]; 1048}; 1049 1050 1051/* 1052 * A N A L O G V I D E O S T A N D A R D 1053 */ 1054 1055typedef __u64 v4l2_std_id; 1056 1057/* one bit for each */ 1058#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001) 1059#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002) 1060#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004) 1061#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008) 1062#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010) 1063#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020) 1064#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040) 1065#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080) 1066 1067#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100) 1068#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200) 1069#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400) 1070#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800) 1071 1072#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000) /* BTSC */ 1073#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000) /* EIA-J */ 1074#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000) 1075#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000) /* FM A2 */ 1076 1077#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000) 1078#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000) 1079#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000) 1080#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000) 1081#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000) 1082#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000) 1083#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000) 1084#define V4L2_STD_SECAM_LC ((v4l2_std_id)0x00800000) 1085 1086/* ATSC/HDTV */ 1087#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000) 1088#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000) 1089 1090/* FIXME: 1091 Although std_id is 64 bits, there is an issue on PPC32 architecture that 1092 makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding 1093 this value to 32 bits. 1094 As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide), 1095 it should work fine. However, if needed to add more than two standards, 1096 v4l2-common.c should be fixed. 1097 */ 1098 1099/* 1100 * Some macros to merge video standards in order to make live easier for the 1101 * drivers and V4L2 applications 1102 */ 1103 1104/* 1105 * "Common" NTSC/M - It should be noticed that V4L2_STD_NTSC_443 is 1106 * Missing here. 1107 */ 1108#define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\ 1109 V4L2_STD_NTSC_M_JP |\ 1110 V4L2_STD_NTSC_M_KR) 1111/* Secam macros */ 1112#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\ 1113 V4L2_STD_SECAM_K |\ 1114 V4L2_STD_SECAM_K1) 1115/* All Secam Standards */ 1116#define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\ 1117 V4L2_STD_SECAM_G |\ 1118 V4L2_STD_SECAM_H |\ 1119 V4L2_STD_SECAM_DK |\ 1120 V4L2_STD_SECAM_L |\ 1121 V4L2_STD_SECAM_LC) 1122/* PAL macros */ 1123#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\ 1124 V4L2_STD_PAL_B1 |\ 1125 V4L2_STD_PAL_G) 1126#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\ 1127 V4L2_STD_PAL_D1 |\ 1128 V4L2_STD_PAL_K) 1129/* 1130 * "Common" PAL - This macro is there to be compatible with the old 1131 * V4L1 concept of "PAL": /BGDKHI. 1132 * Several PAL standards are missing here: /M, /N and /Nc 1133 */ 1134#define V4L2_STD_PAL (V4L2_STD_PAL_BG |\ 1135 V4L2_STD_PAL_DK |\ 1136 V4L2_STD_PAL_H |\ 1137 V4L2_STD_PAL_I) 1138/* Chroma "agnostic" standards */ 1139#define V4L2_STD_B (V4L2_STD_PAL_B |\ 1140 V4L2_STD_PAL_B1 |\ 1141 V4L2_STD_SECAM_B) 1142#define V4L2_STD_G (V4L2_STD_PAL_G |\ 1143 V4L2_STD_SECAM_G) 1144#define V4L2_STD_H (V4L2_STD_PAL_H |\ 1145 V4L2_STD_SECAM_H) 1146#define V4L2_STD_L (V4L2_STD_SECAM_L |\ 1147 V4L2_STD_SECAM_LC) 1148#define V4L2_STD_GH (V4L2_STD_G |\ 1149 V4L2_STD_H) 1150#define V4L2_STD_DK (V4L2_STD_PAL_DK |\ 1151 V4L2_STD_SECAM_DK) 1152#define V4L2_STD_BG (V4L2_STD_B |\ 1153 V4L2_STD_G) 1154#define V4L2_STD_MN (V4L2_STD_PAL_M |\ 1155 V4L2_STD_PAL_N |\ 1156 V4L2_STD_PAL_Nc |\ 1157 V4L2_STD_NTSC) 1158 1159/* Standards where MTS/BTSC stereo could be found */ 1160#define V4L2_STD_MTS (V4L2_STD_NTSC_M |\ 1161 V4L2_STD_PAL_M |\ 1162 V4L2_STD_PAL_N |\ 1163 V4L2_STD_PAL_Nc) 1164 1165/* Standards for Countries with 60Hz Line frequency */ 1166#define V4L2_STD_525_60 (V4L2_STD_PAL_M |\ 1167 V4L2_STD_PAL_60 |\ 1168 V4L2_STD_NTSC |\ 1169 V4L2_STD_NTSC_443) 1170/* Standards for Countries with 50Hz Line frequency */ 1171#define V4L2_STD_625_50 (V4L2_STD_PAL |\ 1172 V4L2_STD_PAL_N |\ 1173 V4L2_STD_PAL_Nc |\ 1174 V4L2_STD_SECAM) 1175 1176#define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB |\ 1177 V4L2_STD_ATSC_16_VSB) 1178/* Macros with none and all analog standards */ 1179#define V4L2_STD_UNKNOWN 0 1180#define V4L2_STD_ALL (V4L2_STD_525_60 |\ 1181 V4L2_STD_625_50) 1182 1183struct <a class="link" href="vidioc-enumstd.html#v4l2-standard" title="Table A.46. struct v4l2_standard">v4l2_standard</a> { 1184 __u32 index; 1185 v4l2_std_id id; 1186 __u8 name[24]; 1187 struct <a class="link" href="vidioc-enumstd.html#v4l2-fract" title="Table A.47. struct v4l2_fract">v4l2_fract</a> frameperiod; /* Frames, not fields */ 1188 __u32 framelines; 1189 __u32 reserved[4]; 1190}; 1191 1192/* 1193 * D V B T T I M I N G S 1194 */ 1195 1196/** struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-bt-timings" title="Table A.57. struct v4l2_bt_timings">v4l2_bt_timings</a> - BT.656/BT.1120 timing data 1197 * @width: total width of the active video in pixels 1198 * @height: total height of the active video in lines 1199 * @interlaced: Interlaced or progressive 1200 * @polarities: Positive or negative polarities 1201 * @pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000 1202 * @hfrontporch:Horizontal front porch in pixels 1203 * @hsync: Horizontal Sync length in pixels 1204 * @hbackporch: Horizontal back porch in pixels 1205 * @vfrontporch:Vertical front porch in lines 1206 * @vsync: Vertical Sync length in lines 1207 * @vbackporch: Vertical back porch in lines 1208 * @il_vfrontporch:Vertical front porch for the even field 1209 * (aka field 2) of interlaced field formats 1210 * @il_vsync: Vertical Sync length for the even field 1211 * (aka field 2) of interlaced field formats 1212 * @il_vbackporch:Vertical back porch for the even field 1213 * (aka field 2) of interlaced field formats 1214 * @standards: Standards the timing belongs to 1215 * @flags: Flags 1216 * @reserved: Reserved fields, must be zeroed. 1217 * 1218 * A note regarding vertical interlaced timings: height refers to the total 1219 * height of the active video frame (= two fields). The blanking timings refer 1220 * to the blanking of each field. So the height of the total frame is 1221 * calculated as follows: 1222 * 1223 * tot_height = height + vfrontporch + vsync + vbackporch + 1224 * il_vfrontporch + il_vsync + il_vbackporch 1225 * 1226 * The active height of each field is height / 2. 1227 */ 1228struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-bt-timings" title="Table A.57. struct v4l2_bt_timings">v4l2_bt_timings</a> { 1229 __u32 width; 1230 __u32 height; 1231 __u32 interlaced; 1232 __u32 polarities; 1233 __u64 pixelclock; 1234 __u32 hfrontporch; 1235 __u32 hsync; 1236 __u32 hbackporch; 1237 __u32 vfrontporch; 1238 __u32 vsync; 1239 __u32 vbackporch; 1240 __u32 il_vfrontporch; 1241 __u32 il_vsync; 1242 __u32 il_vbackporch; 1243 __u32 standards; 1244 __u32 flags; 1245 __u32 reserved[14]; 1246} __attribute__ ((packed)); 1247 1248/* Interlaced or progressive format */ 1249#define V4L2_DV_PROGRESSIVE 0 1250#define V4L2_DV_INTERLACED 1 1251 1252/* Polarities. If bit is not set, it is assumed to be negative polarity */ 1253#define V4L2_DV_VSYNC_POS_POL 0x00000001 1254#define V4L2_DV_HSYNC_POS_POL 0x00000002 1255 1256/* Timings standards */ 1257#define V4L2_DV_BT_STD_CEA861 (1 << 0) /* CEA-861 Digital TV Profile */ 1258#define V4L2_DV_BT_STD_DMT (1 << 1) /* VESA Discrete Monitor Timings */ 1259#define V4L2_DV_BT_STD_CVT (1 << 2) /* VESA Coordinated Video Timings */ 1260#define V4L2_DV_BT_STD_GTF (1 << 3) /* VESA Generalized Timings Formula */ 1261 1262/* Flags */ 1263 1264/* CVT/GTF specific: timing uses reduced blanking (CVT) or the 'Secondary 1265 GTF' curve (GTF). In both cases the horizontal and/or vertical blanking 1266 intervals are reduced, allowing a higher resolution over the same 1267 bandwidth. This is a read-only flag. */ 1268#define V4L2_DV_FL_REDUCED_BLANKING (1 << 0) 1269/* CEA-861 specific: set for CEA-861 formats with a framerate of a multiple 1270 of six. These formats can be optionally played at 1 / 1.001 speed. 1271 This is a read-only flag. */ 1272#define V4L2_DV_FL_CAN_REDUCE_FPS (1 << 1) 1273/* CEA-861 specific: only valid for video transmitters, the flag is cleared 1274 by receivers. 1275 If the framerate of the format is a multiple of six, then the pixelclock 1276 used to set up the transmitter is divided by 1.001 to make it compatible 1277 with 60 Hz based standards such as NTSC and PAL-M that use a framerate of 1278 29.97 Hz. Otherwise this flag is cleared. If the transmitter can't generate 1279 such frequencies, then the flag will also be cleared. */ 1280#define V4L2_DV_FL_REDUCED_FPS (1 << 2) 1281/* Specific to interlaced formats: if set, then field 1 is really one half-line 1282 longer and field 2 is really one half-line shorter, so each field has 1283 exactly the same number of half-lines. Whether half-lines can be detected 1284 or used depends on the hardware. */ 1285#define V4L2_DV_FL_HALF_LINE (1 << 3) 1286/* If set, then this is a Consumer Electronics (CE) video format. Such formats 1287 * differ from other formats (commonly called IT formats) in that if RGB 1288 * encoding is used then by default the RGB values use limited range (i.e.ie; 1289 * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861 1290 * except for the 640x480 format are CE formats. */ 1291#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4) 1292 1293/* A few useful defines to calculate the total blanking and frame sizes */ 1294#define V4L2_DV_BT_BLANKING_WIDTH(bt) \ 1295 ((bt)->hfrontporch + (bt)->hsync + (bt)->hbackporch) 1296#define V4L2_DV_BT_FRAME_WIDTH(bt) \ 1297 ((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt)) 1298#define V4L2_DV_BT_BLANKING_HEIGHT(bt) \ 1299 ((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \ 1300 (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) 1301#define V4L2_DV_BT_FRAME_HEIGHT(bt) \ 1302 ((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt)) 1303 1304/** struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a> - DV timings 1305 * @type: the type of the timings 1306 * @bt: BT656/1120 timings 1307 */ 1308struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a> { 1309 __u32 type; 1310 union { 1311 struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-bt-timings" title="Table A.57. struct v4l2_bt_timings">v4l2_bt_timings</a> bt; 1312 __u32 reserved[32]; 1313 }; 1314} __attribute__ ((packed)); 1315 1316/* Values for the type field */ 1317#define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */ 1318 1319 1320/** struct <a class="link" href="vidioc-enum-dv-timings.html#v4l2-enum-dv-timings" title="Table A.27. struct v4l2_enum_dv_timings">v4l2_enum_dv_timings</a> - DV timings enumeration 1321 * @index: enumeration index 1322 * @pad: the pad number for which to enumerate timings (used with 1323 * v4l-subdev nodes only) 1324 * @reserved: must be zeroed 1325 * @timings: the timings for the given index 1326 */ 1327struct <a class="link" href="vidioc-enum-dv-timings.html#v4l2-enum-dv-timings" title="Table A.27. struct v4l2_enum_dv_timings">v4l2_enum_dv_timings</a> { 1328 __u32 index; 1329 __u32 pad; 1330 __u32 reserved[2]; 1331 struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a> timings; 1332}; 1333 1334/** struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-bt-timings-cap" title="Table A.21. struct v4l2_bt_timings_cap">v4l2_bt_timings_cap</a> - BT.656/BT.1120 timing capabilities 1335 * @min_width: width in pixels 1336 * @max_width: width in pixels 1337 * @min_height: height in lines 1338 * @max_height: height in lines 1339 * @min_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000 1340 * @max_pixelclock: Pixel clock in HZ. Ex. 74.25MHz->74250000 1341 * @standards: Supported standards 1342 * @capabilities: Supported capabilities 1343 * @reserved: Must be zeroed 1344 */ 1345struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-bt-timings-cap" title="Table A.21. struct v4l2_bt_timings_cap">v4l2_bt_timings_cap</a> { 1346 __u32 min_width; 1347 __u32 max_width; 1348 __u32 min_height; 1349 __u32 max_height; 1350 __u64 min_pixelclock; 1351 __u64 max_pixelclock; 1352 __u32 standards; 1353 __u32 capabilities; 1354 __u32 reserved[16]; 1355} __attribute__ ((packed)); 1356 1357/* Supports interlaced formats */ 1358#define V4L2_DV_BT_CAP_INTERLACED (1 << 0) 1359/* Supports progressive formats */ 1360#define V4L2_DV_BT_CAP_PROGRESSIVE (1 << 1) 1361/* Supports CVT/GTF reduced blanking */ 1362#define V4L2_DV_BT_CAP_REDUCED_BLANKING (1 << 2) 1363/* Supports custom formats */ 1364#define V4L2_DV_BT_CAP_CUSTOM (1 << 3) 1365 1366/** struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-dv-timings-cap" title="Table A.22. struct v4l2_dv_timings_cap">v4l2_dv_timings_cap</a> - DV timings capabilities 1367 * @type: the type of the timings (same as in struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a>) 1368 * @pad: the pad number for which to query capabilities (used with 1369 * v4l-subdev nodes only) 1370 * @bt: the BT656/1120 timings capabilities 1371 */ 1372struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-dv-timings-cap" title="Table A.22. struct v4l2_dv_timings_cap">v4l2_dv_timings_cap</a> { 1373 __u32 type; 1374 __u32 pad; 1375 __u32 reserved[2]; 1376 union { 1377 struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-bt-timings-cap" title="Table A.21. struct v4l2_bt_timings_cap">v4l2_bt_timings_cap</a> bt; 1378 __u32 raw_data[32]; 1379 }; 1380}; 1381 1382 1383/* 1384 * V I D E O I N P U T S 1385 */ 1386struct <a class="link" href="vidioc-enuminput.html#v4l2-input" title="Table A.39. struct v4l2_input">v4l2_input</a> { 1387 __u32 index; /* Which input */ 1388 __u8 name[32]; /* Label */ 1389 __u32 type; /* Type of input */ 1390 __u32 audioset; /* Associated audios (bitfield) */ 1391 __u32 tuner; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1392 v4l2_std_id std; 1393 __u32 status; 1394 __u32 capabilities; 1395 __u32 reserved[3]; 1396}; 1397 1398/* Values for the 'type' field */ 1399#define V4L2_INPUT_TYPE_TUNER 1 1400#define V4L2_INPUT_TYPE_CAMERA 2 1401 1402/* field 'status' - general */ 1403#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */ 1404#define V4L2_IN_ST_NO_SIGNAL 0x00000002 1405#define V4L2_IN_ST_NO_COLOR 0x00000004 1406 1407/* field 'status' - sensor orientation */ 1408/* If sensor is mounted upside down set both bits */ 1409#define V4L2_IN_ST_HFLIP 0x00000010 /* Frames are flipped horizontally */ 1410#define V4L2_IN_ST_VFLIP 0x00000020 /* Frames are flipped vertically */ 1411 1412/* field 'status' - analog */ 1413#define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */ 1414#define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */ 1415 1416/* field 'status' - digital */ 1417#define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */ 1418#define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */ 1419#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */ 1420 1421/* field 'status' - VCR and set-top box */ 1422#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */ 1423#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */ 1424#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */ 1425 1426/* capabilities flags */ 1427#define V4L2_IN_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ 1428#define V4L2_IN_CAP_CUSTOM_TIMINGS V4L2_IN_CAP_DV_TIMINGS /* For compatibility */ 1429#define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */ 1430#define V4L2_IN_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */ 1431 1432/* 1433 * V I D E O O U T P U T S 1434 */ 1435struct <a class="link" href="vidioc-enumoutput.html#v4l2-output" title="Table A.43. struct v4l2_output">v4l2_output</a> { 1436 __u32 index; /* Which output */ 1437 __u8 name[32]; /* Label */ 1438 __u32 type; /* Type of output */ 1439 __u32 audioset; /* Associated audios (bitfield) */ 1440 __u32 modulator; /* Associated modulator */ 1441 v4l2_std_id std; 1442 __u32 capabilities; 1443 __u32 reserved[3]; 1444}; 1445/* Values for the 'type' field */ 1446#define V4L2_OUTPUT_TYPE_MODULATOR 1 1447#define V4L2_OUTPUT_TYPE_ANALOG 2 1448#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3 1449 1450/* capabilities flags */ 1451#define V4L2_OUT_CAP_DV_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ 1452#define V4L2_OUT_CAP_CUSTOM_TIMINGS V4L2_OUT_CAP_DV_TIMINGS /* For compatibility */ 1453#define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */ 1454#define V4L2_OUT_CAP_NATIVE_SIZE 0x00000008 /* Supports setting native size */ 1455 1456/* 1457 * C O N T R O L S 1458 */ 1459struct <a class="link" href="vidioc-g-ctrl.html#v4l2-control" title="Table A.56. struct v4l2_control">v4l2_control</a> { 1460 __u32 id; 1461 __s32 value; 1462}; 1463 1464struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-control" title="Table A.66. struct v4l2_ext_control">v4l2_ext_control</a> { 1465 __u32 id; 1466 __u32 size; 1467 __u32 reserved2[1]; 1468 union { 1469 __s32 value; 1470 __s64 value64; 1471 char __user *string; 1472 __u8 __user *p_u8; 1473 __u16 __user *p_u16; 1474 __u32 __user *p_u32; 1475 void __user *ptr; 1476 }; 1477} __attribute__ ((packed)); 1478 1479struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-controls" title="Table A.67. struct v4l2_ext_controls">v4l2_ext_controls</a> { 1480 __u32 ctrl_class; 1481 __u32 count; 1482 __u32 error_idx; 1483 __u32 reserved[2]; 1484 struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-control" title="Table A.66. struct v4l2_ext_control">v4l2_ext_control</a> *controls; 1485}; 1486 1487#define V4L2_CTRL_ID_MASK (0x0fffffff) 1488#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL) 1489#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000) 1490#define V4L2_CTRL_MAX_DIMS (4) 1491 1492enum <a class="link" href="vidioc-queryctrl.html#v4l2-ctrl-type" title="Table A.98. enum v4l2_ctrl_type">v4l2_ctrl_type</a> { 1493 V4L2_CTRL_TYPE_INTEGER = 1, 1494 V4L2_CTRL_TYPE_BOOLEAN = 2, 1495 V4L2_CTRL_TYPE_MENU = 3, 1496 V4L2_CTRL_TYPE_BUTTON = 4, 1497 V4L2_CTRL_TYPE_INTEGER64 = 5, 1498 V4L2_CTRL_TYPE_CTRL_CLASS = 6, 1499 V4L2_CTRL_TYPE_STRING = 7, 1500 V4L2_CTRL_TYPE_BITMASK = 8, 1501 V4L2_CTRL_TYPE_INTEGER_MENU = 9, 1502 1503 /* Compound types are >= 0x0100 */ 1504 V4L2_CTRL_COMPOUND_TYPES = 0x0100, 1505 V4L2_CTRL_TYPE_U8 = 0x0100, 1506 V4L2_CTRL_TYPE_U16 = 0x0101, 1507 V4L2_CTRL_TYPE_U32 = 0x0102, 1508}; 1509 1510/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */ 1511struct <a class="link" href="vidioc-queryctrl.html#v4l2-queryctrl" title="Table A.95. struct v4l2_queryctrl">v4l2_queryctrl</a> { 1512 __u32 id; 1513 __u32 type; /* enum <a class="link" href="vidioc-queryctrl.html#v4l2-ctrl-type" title="Table A.98. enum v4l2_ctrl_type">v4l2_ctrl_type</a> */ 1514 __u8 name[32]; /* Whatever */ 1515 __s32 minimum; /* Note signedness */ 1516 __s32 maximum; 1517 __s32 step; 1518 __s32 default_value; 1519 __u32 flags; 1520 __u32 reserved[2]; 1521}; 1522 1523/* Used in the VIDIOC_QUERY_EXT_CTRL ioctl for querying extended controls */ 1524struct <a class="link" href="vidioc-queryctrl.html#v4l2-query-ext-ctrl" title="Table A.96. struct v4l2_query_ext_ctrl">v4l2_query_ext_ctrl</a> { 1525 __u32 id; 1526 __u32 type; 1527 char name[32]; 1528 __s64 minimum; 1529 __s64 maximum; 1530 __u64 step; 1531 __s64 default_value; 1532 __u32 flags; 1533 __u32 elem_size; 1534 __u32 elems; 1535 __u32 nr_of_dims; 1536 __u32 dims[V4L2_CTRL_MAX_DIMS]; 1537 __u32 reserved[32]; 1538}; 1539 1540/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */ 1541struct <a class="link" href="vidioc-queryctrl.html#v4l2-querymenu" title="Table A.97. struct v4l2_querymenu">v4l2_querymenu</a> { 1542 __u32 id; 1543 __u32 index; 1544 union { 1545 __u8 name[32]; /* Whatever */ 1546 __s64 value; 1547 }; 1548 __u32 reserved; 1549} __attribute__ ((packed)); 1550 1551/* Control flags */ 1552#define V4L2_CTRL_FLAG_DISABLED 0x0001 1553#define V4L2_CTRL_FLAG_GRABBED 0x0002 1554#define V4L2_CTRL_FLAG_READ_ONLY 0x0004 1555#define V4L2_CTRL_FLAG_UPDATE 0x0008 1556#define V4L2_CTRL_FLAG_INACTIVE 0x0010 1557#define V4L2_CTRL_FLAG_SLIDER 0x0020 1558#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040 1559#define V4L2_CTRL_FLAG_VOLATILE 0x0080 1560#define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100 1561#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200 1562 1563/* Query flags, to be ORed with the control ID */ 1564#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000 1565#define V4L2_CTRL_FLAG_NEXT_COMPOUND 0x40000000 1566 1567/* User-class control IDs defined by V4L2 */ 1568#define V4L2_CID_MAX_CTRLS 1024 1569/* IDs reserved for driver specific controls */ 1570#define V4L2_CID_PRIVATE_BASE 0x08000000 1571 1572 1573/* 1574 * T U N I N G 1575 */ 1576struct <a class="link" href="vidioc-g-tuner.html#v4l2-tuner" title="Table A.87. struct v4l2_tuner">v4l2_tuner</a> { 1577 __u32 index; 1578 __u8 name[32]; 1579 __u32 type; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1580 __u32 capability; 1581 __u32 rangelow; 1582 __u32 rangehigh; 1583 __u32 rxsubchans; 1584 __u32 audmode; 1585 __s32 signal; 1586 __s32 afc; 1587 __u32 reserved[4]; 1588}; 1589 1590struct <a class="link" href="vidioc-g-modulator.html#v4l2-modulator" title="Table A.76. struct v4l2_modulator">v4l2_modulator</a> { 1591 __u32 index; 1592 __u8 name[32]; 1593 __u32 capability; 1594 __u32 rangelow; 1595 __u32 rangehigh; 1596 __u32 txsubchans; 1597 __u32 type; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1598 __u32 reserved[3]; 1599}; 1600 1601/* Flags for the 'capability' field */ 1602#define V4L2_TUNER_CAP_LOW 0x0001 1603#define V4L2_TUNER_CAP_NORM 0x0002 1604#define V4L2_TUNER_CAP_HWSEEK_BOUNDED 0x0004 1605#define V4L2_TUNER_CAP_HWSEEK_WRAP 0x0008 1606#define V4L2_TUNER_CAP_STEREO 0x0010 1607#define V4L2_TUNER_CAP_LANG2 0x0020 1608#define V4L2_TUNER_CAP_SAP 0x0020 1609#define V4L2_TUNER_CAP_LANG1 0x0040 1610#define V4L2_TUNER_CAP_RDS 0x0080 1611#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100 1612#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200 1613#define V4L2_TUNER_CAP_FREQ_BANDS 0x0400 1614#define V4L2_TUNER_CAP_HWSEEK_PROG_LIM 0x0800 1615#define V4L2_TUNER_CAP_1HZ 0x1000 1616 1617/* Flags for the 'rxsubchans' field */ 1618#define V4L2_TUNER_SUB_MONO 0x0001 1619#define V4L2_TUNER_SUB_STEREO 0x0002 1620#define V4L2_TUNER_SUB_LANG2 0x0004 1621#define V4L2_TUNER_SUB_SAP 0x0004 1622#define V4L2_TUNER_SUB_LANG1 0x0008 1623#define V4L2_TUNER_SUB_RDS 0x0010 1624 1625/* Values for the 'audmode' field */ 1626#define V4L2_TUNER_MODE_MONO 0x0000 1627#define V4L2_TUNER_MODE_STEREO 0x0001 1628#define V4L2_TUNER_MODE_LANG2 0x0002 1629#define V4L2_TUNER_MODE_SAP 0x0002 1630#define V4L2_TUNER_MODE_LANG1 0x0003 1631#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004 1632 1633struct <a class="link" href="vidioc-g-frequency.html#v4l2-frequency" title="Table A.73. struct v4l2_frequency">v4l2_frequency</a> { 1634 __u32 tuner; 1635 __u32 type; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1636 __u32 frequency; 1637 __u32 reserved[8]; 1638}; 1639 1640#define V4L2_BAND_MODULATION_VSB (1 << 1) 1641#define V4L2_BAND_MODULATION_FM (1 << 2) 1642#define V4L2_BAND_MODULATION_AM (1 << 3) 1643 1644struct <a class="link" href="vidioc-enum-freq-bands.html#v4l2-frequency-band" title="Table A.37. struct v4l2_frequency_band">v4l2_frequency_band</a> { 1645 __u32 tuner; 1646 __u32 type; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1647 __u32 index; 1648 __u32 capability; 1649 __u32 rangelow; 1650 __u32 rangehigh; 1651 __u32 modulation; 1652 __u32 reserved[9]; 1653}; 1654 1655struct <a class="link" href="vidioc-s-hw-freq-seek.html#v4l2-hw-freq-seek" title="Table A.101. struct v4l2_hw_freq_seek">v4l2_hw_freq_seek</a> { 1656 __u32 tuner; 1657 __u32 type; /* enum <a class="link" href="vidioc-g-tuner.html#v4l2-tuner-type" title="Table A.88. enum v4l2_tuner_type">v4l2_tuner_type</a> */ 1658 __u32 seek_upward; 1659 __u32 wrap_around; 1660 __u32 spacing; 1661 __u32 rangelow; 1662 __u32 rangehigh; 1663 __u32 reserved[5]; 1664}; 1665 1666/* 1667 * R D S 1668 */ 1669 1670struct <a class="link" href="rds.html#v4l2-rds-data" title="Table 4.15. struct v4l2_rds_data">v4l2_rds_data</a> { 1671 __u8 lsb; 1672 __u8 msb; 1673 __u8 block; 1674} __attribute__ ((packed)); 1675 1676#define V4L2_RDS_BLOCK_MSK 0x7 1677#define V4L2_RDS_BLOCK_A 0 1678#define V4L2_RDS_BLOCK_B 1 1679#define V4L2_RDS_BLOCK_C 2 1680#define V4L2_RDS_BLOCK_D 3 1681#define V4L2_RDS_BLOCK_C_ALT 4 1682#define V4L2_RDS_BLOCK_INVALID 7 1683 1684#define V4L2_RDS_BLOCK_CORRECTED 0x40 1685#define V4L2_RDS_BLOCK_ERROR 0x80 1686 1687/* 1688 * A U D I O 1689 */ 1690struct <a class="link" href="vidioc-g-audio.html#v4l2-audio" title="Table A.51. struct v4l2_audio">v4l2_audio</a> { 1691 __u32 index; 1692 __u8 name[32]; 1693 __u32 capability; 1694 __u32 mode; 1695 __u32 reserved[2]; 1696}; 1697 1698/* Flags for the 'capability' field */ 1699#define V4L2_AUDCAP_STEREO 0x00001 1700#define V4L2_AUDCAP_AVL 0x00002 1701 1702/* Flags for the 'mode' field */ 1703#define V4L2_AUDMODE_AVL 0x00001 1704 1705struct <a class="link" href="vidioc-g-audioout.html#v4l2-audioout" title="Table A.54. struct v4l2_audioout">v4l2_audioout</a> { 1706 __u32 index; 1707 __u8 name[32]; 1708 __u32 capability; 1709 __u32 mode; 1710 __u32 reserved[2]; 1711}; 1712 1713/* 1714 * M P E G S E R V I C E S 1715 * 1716 * NOTE: EXPERIMENTAL API 1717 */ 1718#if 1 1719#define V4L2_ENC_IDX_FRAME_I (0) 1720#define V4L2_ENC_IDX_FRAME_P (1) 1721#define V4L2_ENC_IDX_FRAME_B (2) 1722#define V4L2_ENC_IDX_FRAME_MASK (0xf) 1723 1724struct <a class="link" href="vidioc-g-enc-index.html#v4l2-enc-idx-entry" title="Table A.64. struct v4l2_enc_idx_entry">v4l2_enc_idx_entry</a> { 1725 __u64 offset; 1726 __u64 pts; 1727 __u32 length; 1728 __u32 flags; 1729 __u32 reserved[2]; 1730}; 1731 1732#define V4L2_ENC_IDX_ENTRIES (64) 1733struct <a class="link" href="vidioc-g-enc-index.html#v4l2-enc-idx" title="Table A.63. struct v4l2_enc_idx">v4l2_enc_idx</a> { 1734 __u32 entries; 1735 __u32 entries_cap; 1736 __u32 reserved[4]; 1737 struct <a class="link" href="vidioc-g-enc-index.html#v4l2-enc-idx-entry" title="Table A.64. struct v4l2_enc_idx_entry">v4l2_enc_idx_entry</a> entry[V4L2_ENC_IDX_ENTRIES]; 1738}; 1739 1740 1741#define V4L2_ENC_CMD_START (0) 1742#define V4L2_ENC_CMD_STOP (1) 1743#define V4L2_ENC_CMD_PAUSE (2) 1744#define V4L2_ENC_CMD_RESUME (3) 1745 1746/* Flags for V4L2_ENC_CMD_STOP */ 1747#define V4L2_ENC_CMD_STOP_AT_GOP_END (1 << 0) 1748 1749struct <a class="link" href="vidioc-encoder-cmd.html#v4l2-encoder-cmd" title="Table A.24. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a> { 1750 __u32 cmd; 1751 __u32 flags; 1752 union { 1753 struct { 1754 __u32 data[8]; 1755 } raw; 1756 }; 1757}; 1758 1759/* Decoder commands */ 1760#define V4L2_DEC_CMD_START (0) 1761#define V4L2_DEC_CMD_STOP (1) 1762#define V4L2_DEC_CMD_PAUSE (2) 1763#define V4L2_DEC_CMD_RESUME (3) 1764 1765/* Flags for V4L2_DEC_CMD_START */ 1766#define V4L2_DEC_CMD_START_MUTE_AUDIO (1 << 0) 1767 1768/* Flags for V4L2_DEC_CMD_PAUSE */ 1769#define V4L2_DEC_CMD_PAUSE_TO_BLACK (1 << 0) 1770 1771/* Flags for V4L2_DEC_CMD_STOP */ 1772#define V4L2_DEC_CMD_STOP_TO_BLACK (1 << 0) 1773#define V4L2_DEC_CMD_STOP_IMMEDIATELY (1 << 1) 1774 1775/* Play format requirements (returned by the driver): */ 1776 1777/* The decoder has no special format requirements */ 1778#define V4L2_DEC_START_FMT_NONE (0) 1779/* The decoder requires full GOPs */ 1780#define V4L2_DEC_START_FMT_GOP (1) 1781 1782/* The structure must be zeroed before use by the application 1783 This ensures it can be extended safely in the future. */ 1784struct <a class="link" href="vidioc-decoder-cmd.html#v4l2-decoder-cmd" title="Table A.10. struct v4l2_decoder_cmd">v4l2_decoder_cmd</a> { 1785 __u32 cmd; 1786 __u32 flags; 1787 union { 1788 struct { 1789 __u64 pts; 1790 } stop; 1791 1792 struct { 1793 /* 0 or 1000 specifies normal speed, 1794 1 specifies forward single stepping, 1795 -1 specifies backward single stepping, 1796 >1: playback at speed/1000 of the normal speed, 1797 <-1: reverse playback at (-speed/1000) of the normal speed. */ 1798 __s32 speed; 1799 __u32 format; 1800 } start; 1801 1802 struct { 1803 __u32 data[16]; 1804 } raw; 1805 }; 1806}; 1807#endif 1808 1809 1810/* 1811 * D A T A S E R V I C E S ( V B I ) 1812 * 1813 * Data services API by Michael Schimek 1814 */ 1815 1816/* Raw VBI */ 1817struct <a class="link" href="raw-vbi.html#v4l2-vbi-format" title="Table 4.4. struct v4l2_vbi_format">v4l2_vbi_format</a> { 1818 __u32 sampling_rate; /* in 1 Hz */ 1819 __u32 offset; 1820 __u32 samples_per_line; 1821 __u32 sample_format; /* V4L2_PIX_FMT_* */ 1822 __s32 start[2]; 1823 __u32 count[2]; 1824 __u32 flags; /* V4L2_VBI_* */ 1825 __u32 reserved[2]; /* must be zero */ 1826}; 1827 1828/* VBI flags */ 1829#define V4L2_VBI_UNSYNC (1 << 0) 1830#define V4L2_VBI_INTERLACED (1 << 1) 1831 1832/* ITU-R start lines for each field */ 1833#define V4L2_VBI_ITU_525_F1_START (1) 1834#define V4L2_VBI_ITU_525_F2_START (264) 1835#define V4L2_VBI_ITU_625_F1_START (1) 1836#define V4L2_VBI_ITU_625_F2_START (314) 1837 1838/* Sliced VBI 1839 * 1840 * This implements is a proposal V4L2 API to allow SLICED VBI 1841 * required for some hardware encoders. It should change without 1842 * notice in the definitive implementation. 1843 */ 1844 1845struct <a class="link" href="sliced.html#v4l2-sliced-vbi-format" title="Table 4.6. struct v4l2_sliced_vbi_format">v4l2_sliced_vbi_format</a> { 1846 __u16 service_set; 1847 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field 1848 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field 1849 (equals frame lines 313-336 for 625 line video 1850 standards, 263-286 for 525 line standards) */ 1851 __u16 service_lines[2][24]; 1852 __u32 io_size; 1853 __u32 reserved[2]; /* must be zero */ 1854}; 1855 1856/* Teletext World System Teletext 1857 (WST), defined on ITU-R BT.653-2 */ 1858#define V4L2_SLICED_TELETEXT_B (0x0001) 1859/* Video Program System, defined on ETS 300 231*/ 1860#define V4L2_SLICED_VPS (0x0400) 1861/* Closed Caption, defined on EIA-608 */ 1862#define V4L2_SLICED_CAPTION_525 (0x1000) 1863/* Wide Screen System, defined on ITU-R BT1119.1 */ 1864#define V4L2_SLICED_WSS_625 (0x4000) 1865 1866#define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525) 1867#define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625) 1868 1869struct <a class="link" href="vidioc-g-sliced-vbi-cap.html#v4l2-sliced-vbi-cap" title="Table A.85. struct v4l2_sliced_vbi_cap">v4l2_sliced_vbi_cap</a> { 1870 __u16 service_set; 1871 /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field 1872 service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field 1873 (equals frame lines 313-336 for 625 line video 1874 standards, 263-286 for 525 line standards) */ 1875 __u16 service_lines[2][24]; 1876 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 1877 __u32 reserved[3]; /* must be 0 */ 1878}; 1879 1880struct <a class="link" href="sliced.html#v4l2-sliced-vbi-data" title="Table 4.8. struct v4l2_sliced_vbi_data">v4l2_sliced_vbi_data</a> { 1881 __u32 id; 1882 __u32 field; /* 0: first field, 1: second field */ 1883 __u32 line; /* 1-23 */ 1884 __u32 reserved; /* must be 0 */ 1885 __u8 data[48]; 1886}; 1887 1888/* 1889 * Sliced VBI data inserted into MPEG Streams 1890 */ 1891 1892/* 1893 * V4L2_MPEG_STREAM_VBI_FMT_IVTV: 1894 * 1895 * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an 1896 * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI 1897 * data 1898 * 1899 * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header 1900 * definitions are not included here. See the MPEG-2 specifications for details 1901 * on these headers. 1902 */ 1903 1904/* Line type IDs */ 1905#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1) 1906#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4) 1907#define V4L2_MPEG_VBI_IVTV_WSS_625 (5) 1908#define V4L2_MPEG_VBI_IVTV_VPS (7) 1909 1910struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> { 1911 __u8 id; /* One of V4L2_MPEG_VBI_IVTV_* above */ 1912 __u8 data[42]; /* Sliced VBI data for the line */ 1913} __attribute__ ((packed)); 1914 1915struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0" title="Table 4.11. struct v4l2_mpeg_vbi_itv0">v4l2_mpeg_vbi_itv0</a> { 1916 __le32 linemask[2]; /* Bitmasks of VBI service lines present */ 1917 struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> line[35]; 1918} __attribute__ ((packed)); 1919 1920struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0-1" title="Table 4.12. struct v4l2_mpeg_vbi_ITV0">v4l2_mpeg_vbi_ITV0</a> { 1921 struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0-line" title="Table 4.13. struct v4l2_mpeg_vbi_itv0_line">v4l2_mpeg_vbi_itv0_line</a> line[36]; 1922} __attribute__ ((packed)); 1923 1924#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0" 1925#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0" 1926 1927struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-fmt-ivtv" title="Table 4.9. struct v4l2_mpeg_vbi_fmt_ivtv">v4l2_mpeg_vbi_fmt_ivtv</a> { 1928 __u8 magic[4]; 1929 union { 1930 struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0" title="Table 4.11. struct v4l2_mpeg_vbi_itv0">v4l2_mpeg_vbi_itv0</a> itv0; 1931 struct <a class="link" href="sliced.html#v4l2-mpeg-vbi-itv0-1" title="Table 4.12. struct v4l2_mpeg_vbi_ITV0">v4l2_mpeg_vbi_ITV0</a> ITV0; 1932 }; 1933} __attribute__ ((packed)); 1934 1935/* 1936 * A G G R E G A T E S T R U C T U R E S 1937 */ 1938 1939/** 1940 * struct <a class="link" href="ch02s02.html#v4l2-plane-pix-format" title="Table 2.2. struct v4l2_plane_pix_format">v4l2_plane_pix_format</a> - additional, per-plane format definition 1941 * @sizeimage: maximum size in bytes required for data, for which 1942 * this plane will be used 1943 * @bytesperline: distance in bytes between the leftmost pixels in two 1944 * adjacent lines 1945 */ 1946struct <a class="link" href="ch02s02.html#v4l2-plane-pix-format" title="Table 2.2. struct v4l2_plane_pix_format">v4l2_plane_pix_format</a> { 1947 __u32 sizeimage; 1948 __u32 bytesperline; 1949 __u16 reserved[6]; 1950} __attribute__ ((packed)); 1951 1952/** 1953 * struct <a class="link" href="ch02s02.html#v4l2-pix-format-mplane" title="Table 2.3. struct v4l2_pix_format_mplane">v4l2_pix_format_mplane</a> - multiplanar format definition 1954 * @width: image width in pixels 1955 * @height: image height in pixels 1956 * @pixelformat: little endian four character code (fourcc) 1957 * @field: enum <a class="link" href="field-order.html#v4l2-field" title="Table 3.9. enum v4l2_field">v4l2_field</a>; field order (for interlaced video) 1958 * @colorspace: enum <a class="link" href="ch02s05.html#v4l2-colorspace" title="Table 2.4. V4L2 Colorspaces">v4l2_colorspace</a>; supplemental to pixelformat 1959 * @plane_fmt: per-plane information 1960 * @num_planes: number of planes for this format 1961 * @flags: format flags (V4L2_PIX_FMT_FLAG_*) 1962 * @ycbcr_enc: enum <a class="link" href="ch02s05.html#v4l2-ycbcr-encoding" title="Table 2.6. V4L2 Y'CbCr Encodings">v4l2_ycbcr_encoding</a>, Y'CbCr encoding 1963 * @quantization: enum <a class="link" href="ch02s05.html#v4l2-quantization" title="Table 2.7. V4L2 Quantization Methods">v4l2_quantization</a>, colorspace quantization 1964 * @xfer_func: enum <a class="link" href="ch02s05.html#v4l2-xfer-func" title="Table 2.5. V4L2 Transfer Function">v4l2_xfer_func</a>, colorspace transfer function 1965 */ 1966struct <a class="link" href="ch02s02.html#v4l2-pix-format-mplane" title="Table 2.3. struct v4l2_pix_format_mplane">v4l2_pix_format_mplane</a> { 1967 __u32 width; 1968 __u32 height; 1969 __u32 pixelformat; 1970 __u32 field; 1971 __u32 colorspace; 1972 1973 struct <a class="link" href="ch02s02.html#v4l2-plane-pix-format" title="Table 2.2. struct v4l2_plane_pix_format">v4l2_plane_pix_format</a> plane_fmt[VIDEO_MAX_PLANES]; 1974 __u8 num_planes; 1975 __u8 flags; 1976 __u8 ycbcr_enc; 1977 __u8 quantization; 1978 __u8 xfer_func; 1979 __u8 reserved[7]; 1980} __attribute__ ((packed)); 1981 1982/** 1983 * struct <a class="link" href="sdr.html#v4l2-sdr-format" title="Table 4.18. struct v4l2_sdr_format">v4l2_sdr_format</a> - SDR format definition 1984 * @pixelformat: little endian four character code (fourcc) 1985 * @buffersize: maximum size in bytes required for data 1986 */ 1987struct <a class="link" href="sdr.html#v4l2-sdr-format" title="Table 4.18. struct v4l2_sdr_format">v4l2_sdr_format</a> { 1988 __u32 pixelformat; 1989 __u32 buffersize; 1990 __u8 reserved[24]; 1991} __attribute__ ((packed)); 1992 1993/** 1994 * struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a> - stream data format 1995 * @type: enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a>; type of the data stream 1996 * @pix: definition of an image format 1997 * @pix_mp: definition of a multiplanar image format 1998 * @win: definition of an overlaid image 1999 * @vbi: raw VBI capture or output parameters 2000 * @sliced: sliced VBI capture or output parameters 2001 * @raw_data: placeholder for future extensions and custom formats 2002 */ 2003struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a> { 2004 __u32 type; 2005 union { 2006 struct <a class="link" href="pixfmt.html#v4l2-pix-format" title="Table 2.1. struct v4l2_pix_format">v4l2_pix_format</a> pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */ 2007 struct <a class="link" href="ch02s02.html#v4l2-pix-format-mplane" title="Table 2.3. struct v4l2_pix_format_mplane">v4l2_pix_format_mplane</a> pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */ 2008 struct <a class="link" href="overlay.html#v4l2-window" title="Table 4.1. struct v4l2_window">v4l2_window</a> win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */ 2009 struct <a class="link" href="raw-vbi.html#v4l2-vbi-format" title="Table 4.4. struct v4l2_vbi_format">v4l2_vbi_format</a> vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */ 2010 struct <a class="link" href="sliced.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 */ 2011 struct <a class="link" href="sdr.html#v4l2-sdr-format" title="Table 4.18. struct v4l2_sdr_format">v4l2_sdr_format</a> sdr; /* V4L2_BUF_TYPE_SDR_CAPTURE */ 2012 __u8 raw_data[200]; /* user-defined */ 2013 } fmt; 2014}; 2015 2016/* Stream type-dependent parameters 2017 */ 2018struct <a class="link" href="vidioc-g-parm.html#v4l2-streamparm" title="Table A.78. struct v4l2_streamparm">v4l2_streamparm</a> { 2019 __u32 type; /* enum <a class="link" href="buffer.html#v4l2-buf-type" title="Table 3.3. enum v4l2_buf_type">v4l2_buf_type</a> */ 2020 union { 2021 struct <a class="link" href="vidioc-g-parm.html#v4l2-captureparm" title="Table A.79. struct v4l2_captureparm">v4l2_captureparm</a> capture; 2022 struct <a class="link" href="vidioc-g-parm.html#v4l2-outputparm" title="Table A.80. struct v4l2_outputparm">v4l2_outputparm</a> output; 2023 __u8 raw_data[200]; /* user-defined */ 2024 } parm; 2025}; 2026 2027/* 2028 * E V E N T S 2029 */ 2030 2031#define V4L2_EVENT_ALL 0 2032#define V4L2_EVENT_VSYNC 1 2033#define V4L2_EVENT_EOS 2 2034#define V4L2_EVENT_CTRL 3 2035#define V4L2_EVENT_FRAME_SYNC 4 2036#define V4L2_EVENT_SOURCE_CHANGE 5 2037#define V4L2_EVENT_MOTION_DET 6 2038#define V4L2_EVENT_PRIVATE_START 0x08000000 2039 2040/* Payload for V4L2_EVENT_VSYNC */ 2041struct <a class="link" href="vidioc-dqevent.html#v4l2-event-vsync" title="Table A.14. struct v4l2_event_vsync">v4l2_event_vsync</a> { 2042 /* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */ 2043 __u8 field; 2044} __attribute__ ((packed)); 2045 2046/* Payload for V4L2_EVENT_CTRL */ 2047#define V4L2_EVENT_CTRL_CH_VALUE (1 << 0) 2048#define V4L2_EVENT_CTRL_CH_FLAGS (1 << 1) 2049#define V4L2_EVENT_CTRL_CH_RANGE (1 << 2) 2050 2051struct <a class="link" href="vidioc-dqevent.html#v4l2-event-ctrl" title="Table A.15. struct v4l2_event_ctrl">v4l2_event_ctrl</a> { 2052 __u32 changes; 2053 __u32 type; 2054 union { 2055 __s32 value; 2056 __s64 value64; 2057 }; 2058 __u32 flags; 2059 __s32 minimum; 2060 __s32 maximum; 2061 __s32 step; 2062 __s32 default_value; 2063}; 2064 2065struct <a class="link" href="vidioc-dqevent.html#v4l2-event-frame-sync" title="Table A.16. struct v4l2_event_frame_sync">v4l2_event_frame_sync</a> { 2066 __u32 frame_sequence; 2067}; 2068 2069#define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0) 2070 2071struct <a class="link" href="vidioc-dqevent.html#v4l2-event-src-change" title="Table A.17. struct v4l2_event_src_change">v4l2_event_src_change</a> { 2072 __u32 changes; 2073}; 2074 2075#define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ (1 << 0) 2076 2077/** 2078 * struct <a class="link" href="vidioc-dqevent.html#v4l2-event-motion-det" title="Table A.18. struct v4l2_event_motion_det">v4l2_event_motion_det</a> - motion detection event 2079 * @flags: if V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ is set, then the 2080 * frame_sequence field is valid. 2081 * @frame_sequence: the frame sequence number associated with this event. 2082 * @region_mask: which regions detected motion. 2083 */ 2084struct <a class="link" href="vidioc-dqevent.html#v4l2-event-motion-det" title="Table A.18. struct v4l2_event_motion_det">v4l2_event_motion_det</a> { 2085 __u32 flags; 2086 __u32 frame_sequence; 2087 __u32 region_mask; 2088}; 2089 2090struct <a class="link" href="vidioc-dqevent.html#v4l2-event" title="Table A.12. struct v4l2_event">v4l2_event</a> { 2091 __u32 type; 2092 union { 2093 struct <a class="link" href="vidioc-dqevent.html#v4l2-event-vsync" title="Table A.14. struct v4l2_event_vsync">v4l2_event_vsync</a> vsync; 2094 struct <a class="link" href="vidioc-dqevent.html#v4l2-event-ctrl" title="Table A.15. struct v4l2_event_ctrl">v4l2_event_ctrl</a> ctrl; 2095 struct <a class="link" href="vidioc-dqevent.html#v4l2-event-frame-sync" title="Table A.16. struct v4l2_event_frame_sync">v4l2_event_frame_sync</a> frame_sync; 2096 struct <a class="link" href="vidioc-dqevent.html#v4l2-event-src-change" title="Table A.17. struct v4l2_event_src_change">v4l2_event_src_change</a> src_change; 2097 struct <a class="link" href="vidioc-dqevent.html#v4l2-event-motion-det" title="Table A.18. struct v4l2_event_motion_det">v4l2_event_motion_det</a> motion_det; 2098 __u8 data[64]; 2099 } u; 2100 __u32 pending; 2101 __u32 sequence; 2102 struct timespec timestamp; 2103 __u32 id; 2104 __u32 reserved[8]; 2105}; 2106 2107#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0) 2108#define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK (1 << 1) 2109 2110struct <a class="link" href="vidioc-subscribe-event.html#v4l2-event-subscription" title="Table A.110. struct v4l2_event_subscription">v4l2_event_subscription</a> { 2111 __u32 type; 2112 __u32 id; 2113 __u32 flags; 2114 __u32 reserved[5]; 2115}; 2116 2117/* 2118 * A D V A N C E D D E B U G G I N G 2119 * 2120 * NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS! 2121 * FOR DEBUGGING, TESTING AND INTERNAL USE ONLY! 2122 */ 2123 2124/* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */ 2125 2126#define V4L2_CHIP_MATCH_BRIDGE 0 /* Match against chip ID on the bridge (0 for the bridge) */ 2127#define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */ 2128 2129/* The following four defines are no longer in use */ 2130#define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE 2131#define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */ 2132#define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */ 2133#define V4L2_CHIP_MATCH_AC97 3 /* Match against ancillary AC97 chip */ 2134 2135struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> { 2136 __u32 type; /* Match type */ 2137 union { /* Match this chip, meaning determined by type */ 2138 __u32 addr; 2139 char name[32]; 2140 }; 2141} __attribute__ ((packed)); 2142 2143struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a> { 2144 struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> match; 2145 __u32 size; /* register size in bytes */ 2146 __u64 reg; 2147 __u64 val; 2148} __attribute__ ((packed)); 2149 2150#define V4L2_CHIP_FL_READABLE (1 << 0) 2151#define V4L2_CHIP_FL_WRITABLE (1 << 1) 2152 2153/* VIDIOC_DBG_G_CHIP_INFO */ 2154struct <a class="link" href="vidioc-dbg-g-chip-info.html#v4l2-dbg-chip-info" title="Table A.5. struct v4l2_dbg_chip_info">v4l2_dbg_chip_info</a> { 2155 struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-match" title="Table A.7. struct v4l2_dbg_match">v4l2_dbg_match</a> match; 2156 char name[32]; 2157 __u32 flags; 2158 __u32 reserved[32]; 2159} __attribute__ ((packed)); 2160 2161/** 2162 * struct <a class="link" href="vidioc-create-bufs.html#v4l2-create-buffers" title="Table A.1. struct v4l2_create_buffers">v4l2_create_buffers</a> - VIDIOC_CREATE_BUFS argument 2163 * @index: on return, index of the first created buffer 2164 * @count: entry: number of requested buffers, 2165 * return: number of created buffers 2166 * @memory: enum <a class="link" href="buffer.html#v4l2-memory" title="Table 3.5. enum v4l2_memory">v4l2_memory</a>; buffer memory type 2167 * @format: frame format, for which buffers are requested 2168 * @reserved: future extensions 2169 */ 2170struct <a class="link" href="vidioc-create-bufs.html#v4l2-create-buffers" title="Table A.1. struct v4l2_create_buffers">v4l2_create_buffers</a> { 2171 __u32 index; 2172 __u32 count; 2173 __u32 memory; 2174 struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a> format; 2175 __u32 reserved[8]; 2176}; 2177 2178/* 2179 * 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 2180 * 2181 */ 2182#define VIDIOC_QUERYCAP _IOR('V', 0, struct <a class="link" href="vidioc-querycap.html#v4l2-capability" title="Table A.93. struct v4l2_capability">v4l2_capability</a>) 2183#define VIDIOC_RESERVED _IO('V', 1) 2184#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct <a class="link" href="vidioc-enum-fmt.html#v4l2-fmtdesc" title="Table A.28. struct v4l2_fmtdesc">v4l2_fmtdesc</a>) 2185#define VIDIOC_G_FMT _IOWR('V', 4, struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a>) 2186#define VIDIOC_S_FMT _IOWR('V', 5, struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a>) 2187#define VIDIOC_REQBUFS _IOWR('V', 8, struct <a class="link" href="vidioc-reqbufs.html#v4l2-requestbuffers" title="Table A.100. struct v4l2_requestbuffers">v4l2_requestbuffers</a>) 2188#define VIDIOC_QUERYBUF _IOWR('V', 9, struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>) 2189#define VIDIOC_G_FBUF _IOR('V', 10, struct <a class="link" href="vidioc-g-fbuf.html#v4l2-framebuffer" title="Table A.69. struct v4l2_framebuffer">v4l2_framebuffer</a>) 2190#define VIDIOC_S_FBUF _IOW('V', 11, struct <a class="link" href="vidioc-g-fbuf.html#v4l2-framebuffer" title="Table A.69. struct v4l2_framebuffer">v4l2_framebuffer</a>) 2191#define VIDIOC_OVERLAY _IOW('V', 14, int) 2192#define VIDIOC_QBUF _IOWR('V', 15, struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>) 2193#define VIDIOC_EXPBUF _IOWR('V', 16, struct <a class="link" href="vidioc-expbuf.html#v4l2-exportbuffer" title="Table A.50. struct v4l2_exportbuffer">v4l2_exportbuffer</a>) 2194#define VIDIOC_DQBUF _IOWR('V', 17, struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>) 2195#define VIDIOC_STREAMON _IOW('V', 18, int) 2196#define VIDIOC_STREAMOFF _IOW('V', 19, int) 2197#define VIDIOC_G_PARM _IOWR('V', 21, struct <a class="link" href="vidioc-g-parm.html#v4l2-streamparm" title="Table A.78. struct v4l2_streamparm">v4l2_streamparm</a>) 2198#define VIDIOC_S_PARM _IOWR('V', 22, struct <a class="link" href="vidioc-g-parm.html#v4l2-streamparm" title="Table A.78. struct v4l2_streamparm">v4l2_streamparm</a>) 2199#define VIDIOC_G_STD _IOR('V', 23, v4l2_std_id) 2200#define VIDIOC_S_STD _IOW('V', 24, v4l2_std_id) 2201#define VIDIOC_ENUMSTD _IOWR('V', 25, struct <a class="link" href="vidioc-enumstd.html#v4l2-standard" title="Table A.46. struct v4l2_standard">v4l2_standard</a>) 2202#define VIDIOC_ENUMINPUT _IOWR('V', 26, struct <a class="link" href="vidioc-enuminput.html#v4l2-input" title="Table A.39. struct v4l2_input">v4l2_input</a>) 2203#define VIDIOC_G_CTRL _IOWR('V', 27, struct <a class="link" href="vidioc-g-ctrl.html#v4l2-control" title="Table A.56. struct v4l2_control">v4l2_control</a>) 2204#define VIDIOC_S_CTRL _IOWR('V', 28, struct <a class="link" href="vidioc-g-ctrl.html#v4l2-control" title="Table A.56. struct v4l2_control">v4l2_control</a>) 2205#define VIDIOC_G_TUNER _IOWR('V', 29, struct <a class="link" href="vidioc-g-tuner.html#v4l2-tuner" title="Table A.87. struct v4l2_tuner">v4l2_tuner</a>) 2206#define VIDIOC_S_TUNER _IOW('V', 30, struct <a class="link" href="vidioc-g-tuner.html#v4l2-tuner" title="Table A.87. struct v4l2_tuner">v4l2_tuner</a>) 2207#define VIDIOC_G_AUDIO _IOR('V', 33, struct <a class="link" href="vidioc-g-audio.html#v4l2-audio" title="Table A.51. struct v4l2_audio">v4l2_audio</a>) 2208#define VIDIOC_S_AUDIO _IOW('V', 34, struct <a class="link" href="vidioc-g-audio.html#v4l2-audio" title="Table A.51. struct v4l2_audio">v4l2_audio</a>) 2209#define VIDIOC_QUERYCTRL _IOWR('V', 36, struct <a class="link" href="vidioc-queryctrl.html#v4l2-queryctrl" title="Table A.95. struct v4l2_queryctrl">v4l2_queryctrl</a>) 2210#define VIDIOC_QUERYMENU _IOWR('V', 37, struct <a class="link" href="vidioc-queryctrl.html#v4l2-querymenu" title="Table A.97. struct v4l2_querymenu">v4l2_querymenu</a>) 2211#define VIDIOC_G_INPUT _IOR('V', 38, int) 2212#define VIDIOC_S_INPUT _IOWR('V', 39, int) 2213#define VIDIOC_G_EDID _IOWR('V', 40, struct <a class="link" href="vidioc-g-edid.html#v4l2-edid" title="Table A.62. struct v4l2_edid">v4l2_edid</a>) 2214#define VIDIOC_S_EDID _IOWR('V', 41, struct <a class="link" href="vidioc-g-edid.html#v4l2-edid" title="Table A.62. struct v4l2_edid">v4l2_edid</a>) 2215#define VIDIOC_G_OUTPUT _IOR('V', 46, int) 2216#define VIDIOC_S_OUTPUT _IOWR('V', 47, int) 2217#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct <a class="link" href="vidioc-enumoutput.html#v4l2-output" title="Table A.43. struct v4l2_output">v4l2_output</a>) 2218#define VIDIOC_G_AUDOUT _IOR('V', 49, struct <a class="link" href="vidioc-g-audioout.html#v4l2-audioout" title="Table A.54. struct v4l2_audioout">v4l2_audioout</a>) 2219#define VIDIOC_S_AUDOUT _IOW('V', 50, struct <a class="link" href="vidioc-g-audioout.html#v4l2-audioout" title="Table A.54. struct v4l2_audioout">v4l2_audioout</a>) 2220#define VIDIOC_G_MODULATOR _IOWR('V', 54, struct <a class="link" href="vidioc-g-modulator.html#v4l2-modulator" title="Table A.76. struct v4l2_modulator">v4l2_modulator</a>) 2221#define VIDIOC_S_MODULATOR _IOW('V', 55, struct <a class="link" href="vidioc-g-modulator.html#v4l2-modulator" title="Table A.76. struct v4l2_modulator">v4l2_modulator</a>) 2222#define VIDIOC_G_FREQUENCY _IOWR('V', 56, struct <a class="link" href="vidioc-g-frequency.html#v4l2-frequency" title="Table A.73. struct v4l2_frequency">v4l2_frequency</a>) 2223#define VIDIOC_S_FREQUENCY _IOW('V', 57, struct <a class="link" href="vidioc-g-frequency.html#v4l2-frequency" title="Table A.73. struct v4l2_frequency">v4l2_frequency</a>) 2224#define VIDIOC_CROPCAP _IOWR('V', 58, struct <a class="link" href="vidioc-cropcap.html#v4l2-cropcap" title="Table A.2. struct v4l2_cropcap">v4l2_cropcap</a>) 2225#define VIDIOC_G_CROP _IOWR('V', 59, struct <a class="link" href="vidioc-g-crop.html#v4l2-crop" title="Table A.55. struct v4l2_crop">v4l2_crop</a>) 2226#define VIDIOC_S_CROP _IOW('V', 60, struct <a class="link" href="vidioc-g-crop.html#v4l2-crop" title="Table A.55. struct v4l2_crop">v4l2_crop</a>) 2227#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct <a class="link" href="vidioc-g-jpegcomp.html#v4l2-jpegcompression" title="Table A.74. struct v4l2_jpegcompression">v4l2_jpegcompression</a>) 2228#define VIDIOC_S_JPEGCOMP _IOW('V', 62, struct <a class="link" href="vidioc-g-jpegcomp.html#v4l2-jpegcompression" title="Table A.74. struct v4l2_jpegcompression">v4l2_jpegcompression</a>) 2229#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id) 2230#define VIDIOC_TRY_FMT _IOWR('V', 64, struct <a class="link" href="vidioc-g-fmt.html#v4l2-format" title="Table A.72. struct v4l2_format">v4l2_format</a>) 2231#define VIDIOC_ENUMAUDIO _IOWR('V', 65, struct <a class="link" href="vidioc-g-audio.html#v4l2-audio" title="Table A.51. struct v4l2_audio">v4l2_audio</a>) 2232#define VIDIOC_ENUMAUDOUT _IOWR('V', 66, struct <a class="link" href="vidioc-g-audioout.html#v4l2-audioout" title="Table A.54. struct v4l2_audioout">v4l2_audioout</a>) 2233#define VIDIOC_G_PRIORITY _IOR('V', 67, __u32) /* enum <a class="link" href="vidioc-g-priority.html#v4l2-priority" title="Table A.83. enum v4l2_priority">v4l2_priority</a> */ 2234#define VIDIOC_S_PRIORITY _IOW('V', 68, __u32) /* enum <a class="link" href="vidioc-g-priority.html#v4l2-priority" title="Table A.83. enum v4l2_priority">v4l2_priority</a> */ 2235#define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct <a class="link" href="vidioc-g-sliced-vbi-cap.html#v4l2-sliced-vbi-cap" title="Table A.85. struct v4l2_sliced_vbi_cap">v4l2_sliced_vbi_cap</a>) 2236#define VIDIOC_LOG_STATUS _IO('V', 70) 2237#define VIDIOC_G_EXT_CTRLS _IOWR('V', 71, struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-controls" title="Table A.67. struct v4l2_ext_controls">v4l2_ext_controls</a>) 2238#define VIDIOC_S_EXT_CTRLS _IOWR('V', 72, struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-controls" title="Table A.67. struct v4l2_ext_controls">v4l2_ext_controls</a>) 2239#define VIDIOC_TRY_EXT_CTRLS _IOWR('V', 73, struct <a class="link" href="vidioc-g-ext-ctrls.html#v4l2-ext-controls" title="Table A.67. struct v4l2_ext_controls">v4l2_ext_controls</a>) 2240#define VIDIOC_ENUM_FRAMESIZES _IOWR('V', 74, struct <a class="link" href="vidioc-enum-framesizes.html#v4l2-frmsizeenum" title="Table A.32. struct v4l2_frmsizeenum">v4l2_frmsizeenum</a>) 2241#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct <a class="link" href="vidioc-enum-frameintervals.html#v4l2-frmivalenum" title="Table A.35. struct v4l2_frmivalenum">v4l2_frmivalenum</a>) 2242#define VIDIOC_G_ENC_INDEX _IOR('V', 76, struct <a class="link" href="vidioc-g-enc-index.html#v4l2-enc-idx" title="Table A.63. struct v4l2_enc_idx">v4l2_enc_idx</a>) 2243#define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct <a class="link" href="vidioc-encoder-cmd.html#v4l2-encoder-cmd" title="Table A.24. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a>) 2244#define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct <a class="link" href="vidioc-encoder-cmd.html#v4l2-encoder-cmd" title="Table A.24. struct v4l2_encoder_cmd">v4l2_encoder_cmd</a>) 2245 2246/* Experimental, meant for debugging, testing and internal use. 2247 Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined. 2248 You must be root to use these ioctls. Never use these in applications! */ 2249#define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a>) 2250#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct <a class="link" href="vidioc-dbg-g-register.html#v4l2-dbg-register" title="Table A.8. struct v4l2_dbg_register">v4l2_dbg_register</a>) 2251 2252#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <a class="link" href="vidioc-s-hw-freq-seek.html#v4l2-hw-freq-seek" title="Table A.101. struct v4l2_hw_freq_seek">v4l2_hw_freq_seek</a>) 2253 2254#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a>) 2255#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a>) 2256#define VIDIOC_DQEVENT _IOR('V', 89, struct <a class="link" href="vidioc-dqevent.html#v4l2-event" title="Table A.12. struct v4l2_event">v4l2_event</a>) 2257#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct <a class="link" href="vidioc-subscribe-event.html#v4l2-event-subscription" title="Table A.110. struct v4l2_event_subscription">v4l2_event_subscription</a>) 2258#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct <a class="link" href="vidioc-subscribe-event.html#v4l2-event-subscription" title="Table A.110. struct v4l2_event_subscription">v4l2_event_subscription</a>) 2259 2260/* Experimental, the below two ioctls may change over the next couple of kernel 2261 versions */ 2262#define VIDIOC_CREATE_BUFS _IOWR('V', 92, struct <a class="link" href="vidioc-create-bufs.html#v4l2-create-buffers" title="Table A.1. struct v4l2_create_buffers">v4l2_create_buffers</a>) 2263#define VIDIOC_PREPARE_BUF _IOWR('V', 93, struct <a class="link" href="buffer.html#v4l2-buffer" title="Table 3.1. struct v4l2_buffer">v4l2_buffer</a>) 2264 2265/* Experimental selection API */ 2266#define VIDIOC_G_SELECTION _IOWR('V', 94, struct <a class="link" href="vidioc-g-selection.html#v4l2-selection" title="Table A.84. struct v4l2_selection">v4l2_selection</a>) 2267#define VIDIOC_S_SELECTION _IOWR('V', 95, struct <a class="link" href="vidioc-g-selection.html#v4l2-selection" title="Table A.84. struct v4l2_selection">v4l2_selection</a>) 2268 2269/* Experimental, these two ioctls may change over the next couple of kernel 2270 versions. */ 2271#define VIDIOC_DECODER_CMD _IOWR('V', 96, struct <a class="link" href="vidioc-decoder-cmd.html#v4l2-decoder-cmd" title="Table A.10. struct v4l2_decoder_cmd">v4l2_decoder_cmd</a>) 2272#define VIDIOC_TRY_DECODER_CMD _IOWR('V', 97, struct <a class="link" href="vidioc-decoder-cmd.html#v4l2-decoder-cmd" title="Table A.10. struct v4l2_decoder_cmd">v4l2_decoder_cmd</a>) 2273 2274/* Experimental, these three ioctls may change over the next couple of kernel 2275 versions. */ 2276#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct <a class="link" href="vidioc-enum-dv-timings.html#v4l2-enum-dv-timings" title="Table A.27. struct v4l2_enum_dv_timings">v4l2_enum_dv_timings</a>) 2277#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct <a class="link" href="vidioc-g-dv-timings.html#v4l2-dv-timings" title="Table A.58. struct v4l2_dv_timings">v4l2_dv_timings</a>) 2278#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct <a class="link" href="vidioc-dv-timings-cap.html#v4l2-dv-timings-cap" title="Table A.22. struct v4l2_dv_timings_cap">v4l2_dv_timings_cap</a>) 2279 2280/* Experimental, this ioctl may change over the next couple of kernel 2281 versions. */ 2282#define VIDIOC_ENUM_FREQ_BANDS _IOWR('V', 101, struct <a class="link" href="vidioc-enum-freq-bands.html#v4l2-frequency-band" title="Table A.37. struct v4l2_frequency_band">v4l2_frequency_band</a>) 2283 2284/* Experimental, meant for debugging, testing and internal use. 2285 Never use these in applications! */ 2286#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct <a class="link" href="vidioc-dbg-g-chip-info.html#v4l2-dbg-chip-info" title="Table A.5. struct v4l2_dbg_chip_info">v4l2_dbg_chip_info</a>) 2287 2288#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct <a class="link" href="vidioc-queryctrl.html#v4l2-query-ext-ctrl" title="Table A.96. struct v4l2_query_ext_ctrl">v4l2_query_ext_ctrl</a>) 2289 2290/* Reminder: when adding new ioctls please add support for them to 2291 drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */ 2292 2293#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */ 2294 2295#endif /* _UAPI__LINUX_VIDEODEV2_H */ 2296</pre></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="apb.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="v4l2spec.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="capture-example.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Appendix B. Common definitions for V4L2 and V4L2 subdev interfaces </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Appendix D. Video Capture Example</td></tr></table></div></body></html> 2297