Based on kernel version 4.7.2. Page generated on 2016-08-22 22:45 EST.
1 <partinfo> 2 <authorgroup> 3 <author> 4 <firstname>Michael</firstname> 5 <surname>Schimek</surname> 6 <othername role="mi">H</othername> 7 <affiliation> 8 <address> 9 <email>mschimek@gmx.at</email> 10 </address> 11 </affiliation> 12 </author> 13 14 <author> 15 <firstname>Bill</firstname> 16 <surname>Dirks</surname> 17 <!-- Commented until Bill opts in to be spammed. 18 <affiliation> 19 <address> 20 <email>bill@thedirks.org</email> 21 </address> 22 </affiliation> --> 23 <contrib>Original author of the V4L2 API and 24 documentation.</contrib> 25 </author> 26 27 <author> 28 <firstname>Hans</firstname> 29 <surname>Verkuil</surname> 30 <contrib>Designed and documented the VIDIOC_LOG_STATUS ioctl, 31 the extended control ioctls, major parts of the sliced VBI API, the 32 MPEG encoder and decoder APIs and the DV Timings API.</contrib> 33 <affiliation> 34 <address> 35 <email>hverkuil@xs4all.nl</email> 36 </address> 37 </affiliation> 38 </author> 39 40 <author> 41 <firstname>Martin</firstname> 42 <surname>Rubli</surname> 43 <!-- 44 <affiliation> 45 <address> 46 <email>martin_rubli@logitech.com</email> 47 </address> 48 </affiliation> --> 49 <contrib>Designed and documented the VIDIOC_ENUM_FRAMESIZES 50 and VIDIOC_ENUM_FRAMEINTERVALS ioctls.</contrib> 51 </author> 52 53 <author> 54 <firstname>Andy</firstname> 55 <surname>Walls</surname> 56 <contrib>Documented the fielded V4L2_MPEG_STREAM_VBI_FMT_IVTV 57 MPEG stream embedded, sliced VBI data format in this specification. 58 </contrib> 59 <affiliation> 60 <address> 61 <email>awalls@md.metrocast.net</email> 62 </address> 63 </affiliation> 64 </author> 65 66 <author> 67 <firstname>Mauro</firstname> 68 <surname>Carvalho Chehab</surname> 69 <contrib>Documented libv4l, designed and added v4l2grab example, 70 Remote Controller chapter.</contrib> 71 <affiliation> 72 <address> 73 <email>m.chehab@samsung.com</email> 74 </address> 75 </affiliation> 76 </author> 77 78 <author> 79 <firstname>Muralidharan</firstname> 80 <surname>Karicheri</surname> 81 <contrib>Documented the Digital Video timings API.</contrib> 82 <affiliation> 83 <address> 84 <email>m-karicheri2@ti.com</email> 85 </address> 86 </affiliation> 87 </author> 88 89 <author> 90 <firstname>Pawel</firstname> 91 <surname>Osciak</surname> 92 <contrib>Designed and documented the multi-planar API.</contrib> 93 <affiliation> 94 <address> 95 <email>pawel AT osciak.com</email> 96 </address> 97 </affiliation> 98 </author> 99 100 <author> 101 <firstname>Sakari</firstname> 102 <surname>Ailus</surname> 103 <contrib>Subdev selections API.</contrib> 104 <affiliation> 105 <address> 106 <email>sakari.ailus@iki.fi</email> 107 </address> 108 </affiliation> 109 </author> 110 <author> 111 <firstname>Antti</firstname> 112 <surname>Palosaari</surname> 113 <contrib>SDR API.</contrib> 114 <affiliation> 115 <address> 116 <email>crope@iki.fi</email> 117 </address> 118 </affiliation> 119 </author> 120 </authorgroup> 121 122 <copyright> 123 <year>1999</year> 124 <year>2000</year> 125 <year>2001</year> 126 <year>2002</year> 127 <year>2003</year> 128 <year>2004</year> 129 <year>2005</year> 130 <year>2006</year> 131 <year>2007</year> 132 <year>2008</year> 133 <year>2009</year> 134 <year>2010</year> 135 <year>2011</year> 136 <year>2012</year> 137 <year>2013</year> 138 <year>2014</year> 139 <year>2015</year> 140 <holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin 141 Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab, 142 Pawel Osciak</holder> 143 </copyright> 144 <legalnotice> 145 <para>Except when explicitly stated as GPL, programming examples within 146 this part can be used and distributed without restrictions.</para> 147 </legalnotice> 148 <revhistory> 149 <!-- Put document revisions here, newest first. --> 150 <!-- API revisions (changes and additions of defines, enums, 151 structs, ioctls) must be noted in more detail in the history chapter 152 (compat.xml), along with the possible impact on existing drivers and 153 applications. --> 154 <revision> 155 <revnumber>4.5</revnumber> 156 <date>2015-10-29</date> 157 <authorinitials>rr</authorinitials> 158 <revremark>Extend vidioc-g-ext-ctrls;. Replace ctrl_class with a new 159 union with ctrl_class and which. Which is used to select the current value of 160 the control or the default value. 161 </revremark> 162 </revision> 163 164 <revision> 165 <revnumber>4.4</revnumber> 166 <date>2015-05-26</date> 167 <authorinitials>ap</authorinitials> 168 <revremark>Renamed V4L2_TUNER_ADC to V4L2_TUNER_SDR. 169 Added V4L2_CID_RF_TUNER_RF_GAIN control. 170 Added transmitter support for Software Defined Radio (SDR) Interface. 171 </revremark> 172 </revision> 173 174 <revision> 175 <revnumber>4.1</revnumber> 176 <date>2015-02-13</date> 177 <authorinitials>mcc</authorinitials> 178 <revremark>Fix documentation for media controller device nodes and add support for DVB device nodes. 179 Add support for Tuner sub-device. 180 </revremark> 181 </revision> 182 <revision> 183 <revnumber>3.19</revnumber> 184 <date>2014-12-05</date> 185 <authorinitials>hv</authorinitials> 186 <revremark>Rewrote Colorspace chapter, added new &v4l2-ycbcr-encoding; and &v4l2-quantization; fields 187 to &v4l2-pix-format;, &v4l2-pix-format-mplane; and &v4l2-mbus-framefmt;. 188 </revremark> 189 </revision> 190 191 <revision> 192 <revnumber>3.17</revnumber> 193 <date>2014-08-04</date> 194 <authorinitials>lp, hv</authorinitials> 195 <revremark>Extended &v4l2-pix-format;. Added format flags. Added compound control types 196 and VIDIOC_QUERY_EXT_CTRL. 197 </revremark> 198 </revision> 199 200 <revision> 201 <revnumber>3.15</revnumber> 202 <date>2014-02-03</date> 203 <authorinitials>hv, ap</authorinitials> 204 <revremark>Update several sections of "Common API Elements": "Opening and Closing Devices" 205 "Querying Capabilities", "Application Priority", "Video Inputs and Outputs", "Audio Inputs and Outputs" 206 "Tuners and Modulators", "Video Standards" and "Digital Video (DV) Timings". Added SDR API. 207 </revremark> 208 </revision> 209 210 <revision> 211 <revnumber>3.14</revnumber> 212 <date>2013-11-25</date> 213 <authorinitials>rr</authorinitials> 214 <revremark>Set width and height as unsigned on v4l2_rect. 215 </revremark> 216 </revision> 217 218 <revision> 219 <revnumber>3.11</revnumber> 220 <date>2013-05-26</date> 221 <authorinitials>hv</authorinitials> 222 <revremark>Remove obsolete VIDIOC_DBG_G_CHIP_IDENT ioctl. 223 </revremark> 224 </revision> 225 226 <revision> 227 <revnumber>3.10</revnumber> 228 <date>2013-03-25</date> 229 <authorinitials>hv</authorinitials> 230 <revremark>Remove obsolete and unused DV_PRESET ioctls: 231 VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET, VIDIOC_QUERY_DV_PRESET and 232 VIDIOC_ENUM_DV_PRESET. Remove the related v4l2_input/output capability 233 flags V4L2_IN_CAP_PRESETS and V4L2_OUT_CAP_PRESETS. Added VIDIOC_DBG_G_CHIP_INFO. 234 </revremark> 235 </revision> 236 237 <revision> 238 <revnumber>3.9</revnumber> 239 <date>2012-12-03</date> 240 <authorinitials>sa, sn</authorinitials> 241 <revremark>Added timestamp types to v4l2_buffer. 242 Added V4L2_EVENT_CTRL_CH_RANGE control event changes flag. 243 </revremark> 244 </revision> 245 246 <revision> 247 <revnumber>3.6</revnumber> 248 <date>2012-07-02</date> 249 <authorinitials>hv</authorinitials> 250 <revremark>Added VIDIOC_ENUM_FREQ_BANDS. 251 </revremark> 252 </revision> 253 254 <revision> 255 <revnumber>3.5</revnumber> 256 <date>2012-05-07</date> 257 <authorinitials>sa, sn, hv</authorinitials> 258 <revremark>Added V4L2_CTRL_TYPE_INTEGER_MENU and V4L2 subdev 259 selections API. Improved the description of V4L2_CID_COLORFX 260 control, added V4L2_CID_COLORFX_CBCR control. 261 Added camera controls V4L2_CID_AUTO_EXPOSURE_BIAS, 262 V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, V4L2_CID_IMAGE_STABILIZATION, 263 V4L2_CID_ISO_SENSITIVITY, V4L2_CID_ISO_SENSITIVITY_AUTO, 264 V4L2_CID_EXPOSURE_METERING, V4L2_CID_SCENE_MODE, 265 V4L2_CID_3A_LOCK, V4L2_CID_AUTO_FOCUS_START, 266 V4L2_CID_AUTO_FOCUS_STOP, V4L2_CID_AUTO_FOCUS_STATUS 267 and V4L2_CID_AUTO_FOCUS_RANGE. 268 Added VIDIOC_ENUM_DV_TIMINGS, VIDIOC_QUERY_DV_TIMINGS and 269 VIDIOC_DV_TIMINGS_CAP. 270 </revremark> 271 </revision> 272 273 <revision> 274 <revnumber>3.4</revnumber> 275 <date>2012-01-25</date> 276 <authorinitials>sn</authorinitials> 277 <revremark>Added <link linkend="jpeg-controls">JPEG compression 278 control class.</link> 279 </revremark> 280 </revision> 281 282 <revision> 283 <revnumber>3.3</revnumber> 284 <date>2012-01-11</date> 285 <authorinitials>hv</authorinitials> 286 <revremark>Added device_caps field to struct v4l2_capabilities.</revremark> 287 </revision> 288 289 <revision> 290 <revnumber>3.2</revnumber> 291 <date>2011-08-26</date> 292 <authorinitials>hv</authorinitials> 293 <revremark>Added V4L2_CTRL_FLAG_VOLATILE.</revremark> 294 </revision> 295 296 <revision> 297 <revnumber>3.1</revnumber> 298 <date>2011-06-27</date> 299 <authorinitials>mcc, po, hv</authorinitials> 300 <revremark>Documented that VIDIOC_QUERYCAP now returns a per-subsystem version instead of a per-driver one. 301 Standardize an error code for invalid ioctl. 302 Added V4L2_CTRL_TYPE_BITMASK.</revremark> 303 </revision> 304 305 <revision> 306 <revnumber>2.6.39</revnumber> 307 <date>2011-03-01</date> 308 <authorinitials>mcc, po</authorinitials> 309 <revremark>Removed VIDIOC_*_OLD from videodev2.h header and update it to reflect latest changes. Added the <link linkend="planar-apis">multi-planar API</link>.</revremark> 310 </revision> 311 312 <revision> 313 <revnumber>2.6.37</revnumber> 314 <date>2010-08-06</date> 315 <authorinitials>hv</authorinitials> 316 <revremark>Removed obsolete vtx (videotext) API.</revremark> 317 </revision> 318 319 <revision> 320 <revnumber>2.6.33</revnumber> 321 <date>2009-12-03</date> 322 <authorinitials>mk</authorinitials> 323 <revremark>Added documentation for the Digital Video timings API.</revremark> 324 </revision> 325 326 <revision> 327 <revnumber>2.6.32</revnumber> 328 <date>2009-08-31</date> 329 <authorinitials>mcc</authorinitials> 330 <revremark>Now, revisions will match the kernel version where 331 the V4L2 API changes will be used by the Linux Kernel. 332 Also added Remote Controller chapter.</revremark> 333 </revision> 334 335 <revision> 336 <revnumber>0.29</revnumber> 337 <date>2009-08-26</date> 338 <authorinitials>ev</authorinitials> 339 <revremark>Added documentation for string controls and for FM Transmitter controls.</revremark> 340 </revision> 341 342 <revision> 343 <revnumber>0.28</revnumber> 344 <date>2009-08-26</date> 345 <authorinitials>gl</authorinitials> 346 <revremark>Added V4L2_CID_BAND_STOP_FILTER documentation.</revremark> 347 </revision> 348 349 <revision> 350 <revnumber>0.27</revnumber> 351 <date>2009-08-15</date> 352 <authorinitials>mcc</authorinitials> 353 <revremark>Added libv4l and Remote Controller documentation; 354 added v4l2grab and keytable application examples.</revremark> 355 </revision> 356 357 <revision> 358 <revnumber>0.26</revnumber> 359 <date>2009-07-23</date> 360 <authorinitials>hv</authorinitials> 361 <revremark>Finalized the RDS capture API. Added modulator and RDS encoder 362 capabilities. Added support for string controls.</revremark> 363 </revision> 364 365 <revision> 366 <revnumber>0.25</revnumber> 367 <date>2009-01-18</date> 368 <authorinitials>hv</authorinitials> 369 <revremark>Added pixel formats VYUY, NV16 and NV61, and changed 370 the debug ioctls VIDIOC_DBG_G/S_REGISTER and VIDIOC_DBG_G_CHIP_IDENT. 371 Added camera controls V4L2_CID_ZOOM_ABSOLUTE, V4L2_CID_ZOOM_RELATIVE, 372 V4L2_CID_ZOOM_CONTINUOUS and V4L2_CID_PRIVACY.</revremark> 373 </revision> 374 375 <revision> 376 <revnumber>0.24</revnumber> 377 <date>2008-03-04</date> 378 <authorinitials>mhs</authorinitials> 379 <revremark>Added pixel formats Y16 and SBGGR16, new controls 380 and a camera controls class. Removed VIDIOC_G/S_MPEGCOMP.</revremark> 381 </revision> 382 383 <revision> 384 <revnumber>0.23</revnumber> 385 <date>2007-08-30</date> 386 <authorinitials>mhs</authorinitials> 387 <revremark>Fixed a typo in VIDIOC_DBG_G/S_REGISTER. 388 Clarified the byte order of packed pixel formats.</revremark> 389 </revision> 390 391 <revision> 392 <revnumber>0.22</revnumber> 393 <date>2007-08-29</date> 394 <authorinitials>mhs</authorinitials> 395 <revremark>Added the Video Output Overlay interface, new MPEG 396 controls, V4L2_FIELD_INTERLACED_TB and V4L2_FIELD_INTERLACED_BT, 397 VIDIOC_DBG_G/S_REGISTER, VIDIOC_(TRY_)ENCODER_CMD, 398 VIDIOC_G_CHIP_IDENT, VIDIOC_G_ENC_INDEX, new pixel formats. 399 Clarifications in the cropping chapter, about RGB pixel formats, the 400 mmap(), poll(), select(), read() and write() functions. Typographical 401 fixes.</revremark> 402 </revision> 403 404 <revision> 405 <revnumber>0.21</revnumber> 406 <date>2006-12-19</date> 407 <authorinitials>mhs</authorinitials> 408 <revremark>Fixed a link in the VIDIOC_G_EXT_CTRLS section.</revremark> 409 </revision> 410 411 <revision> 412 <revnumber>0.20</revnumber> 413 <date>2006-11-24</date> 414 <authorinitials>mhs</authorinitials> 415 <revremark>Clarified the purpose of the audioset field in 416 struct v4l2_input and v4l2_output.</revremark> 417 </revision> 418 419 <revision> 420 <revnumber>0.19</revnumber> 421 <date>2006-10-19</date> 422 <authorinitials>mhs</authorinitials> 423 <revremark>Documented V4L2_PIX_FMT_RGB444.</revremark> 424 </revision> 425 426 <revision> 427 <revnumber>0.18</revnumber> 428 <date>2006-10-18</date> 429 <authorinitials>mhs</authorinitials> 430 <revremark>Added the description of extended controls by Hans 431 Verkuil. Linked V4L2_PIX_FMT_MPEG to V4L2_CID_MPEG_STREAM_TYPE.</revremark> 432 </revision> 433 434 <revision> 435 <revnumber>0.17</revnumber> 436 <date>2006-10-12</date> 437 <authorinitials>mhs</authorinitials> 438 <revremark>Corrected V4L2_PIX_FMT_HM12 description.</revremark> 439 </revision> 440 441 <revision> 442 <revnumber>0.16</revnumber> 443 <date>2006-10-08</date> 444 <authorinitials>mhs</authorinitials> 445 <revremark>VIDIOC_ENUM_FRAMESIZES and 446 VIDIOC_ENUM_FRAMEINTERVALS are now part of the API.</revremark> 447 </revision> 448 449 <revision> 450 <revnumber>0.15</revnumber> 451 <date>2006-09-23</date> 452 <authorinitials>mhs</authorinitials> 453 <revremark>Cleaned up the bibliography, added BT.653 and 454 BT.1119. capture.c/start_capturing() for user pointer I/O did not 455 initialize the buffer index. Documented the V4L MPEG and MJPEG 456 VID_TYPEs and V4L2_PIX_FMT_SBGGR8. Updated the list of reserved pixel 457 formats. See the history chapter for API changes.</revremark> 458 </revision> 459 460 <revision> 461 <revnumber>0.14</revnumber> 462 <date>2006-09-14</date> 463 <authorinitials>mr</authorinitials> 464 <revremark>Added VIDIOC_ENUM_FRAMESIZES and 465 VIDIOC_ENUM_FRAMEINTERVALS proposal for frame format enumeration of 466 digital devices.</revremark> 467 </revision> 468 469 <revision> 470 <revnumber>0.13</revnumber> 471 <date>2006-04-07</date> 472 <authorinitials>mhs</authorinitials> 473 <revremark>Corrected the description of struct v4l2_window 474 clips. New V4L2_STD_ and V4L2_TUNER_MODE_LANG1_LANG2 475 defines.</revremark> 476 </revision> 477 478 <revision> 479 <revnumber>0.12</revnumber> 480 <date>2006-02-03</date> 481 <authorinitials>mhs</authorinitials> 482 <revremark>Corrected the description of struct 483 v4l2_captureparm and v4l2_outputparm.</revremark> 484 </revision> 485 486 <revision> 487 <revnumber>0.11</revnumber> 488 <date>2006-01-27</date> 489 <authorinitials>mhs</authorinitials> 490 <revremark>Improved the description of struct 491 v4l2_tuner.</revremark> 492 </revision> 493 494 <revision> 495 <revnumber>0.10</revnumber> 496 <date>2006-01-10</date> 497 <authorinitials>mhs</authorinitials> 498 <revremark>VIDIOC_G_INPUT and VIDIOC_S_PARM 499 clarifications.</revremark> 500 </revision> 501 502 <revision> 503 <revnumber>0.9</revnumber> 504 <date>2005-11-27</date> 505 <authorinitials>mhs</authorinitials> 506 <revremark>Improved the 525 line numbering diagram. Hans 507 Verkuil and I rewrote the sliced VBI section. He also contributed a 508 VIDIOC_LOG_STATUS page. Fixed VIDIOC_S_STD call in the video standard 509 selection example. Various updates.</revremark> 510 </revision> 511 512 <revision> 513 <revnumber>0.8</revnumber> 514 <date>2004-10-04</date> 515 <authorinitials>mhs</authorinitials> 516 <revremark>Somehow a piece of junk slipped into the capture 517 example, removed.</revremark> 518 </revision> 519 520 <revision> 521 <revnumber>0.7</revnumber> 522 <date>2004-09-19</date> 523 <authorinitials>mhs</authorinitials> 524 <revremark>Fixed video standard selection, control 525 enumeration, downscaling and aspect example. Added read and user 526 pointer i/o to video capture example.</revremark> 527 </revision> 528 529 <revision> 530 <revnumber>0.6</revnumber> 531 <date>2004-08-01</date> 532 <authorinitials>mhs</authorinitials> 533 <revremark>v4l2_buffer changes, added video capture example, 534 various corrections.</revremark> 535 </revision> 536 537 <revision> 538 <revnumber>0.5</revnumber> 539 <date>2003-11-05</date> 540 <authorinitials>mhs</authorinitials> 541 <revremark>Pixel format erratum.</revremark> 542 </revision> 543 544 <revision> 545 <revnumber>0.4</revnumber> 546 <date>2003-09-17</date> 547 <authorinitials>mhs</authorinitials> 548 <revremark>Corrected source and Makefile to generate a PDF. 549 SGML fixes. Added latest API changes. Closed gaps in the history 550 chapter.</revremark> 551 </revision> 552 553 <revision> 554 <revnumber>0.3</revnumber> 555 <date>2003-02-05</date> 556 <authorinitials>mhs</authorinitials> 557 <revremark>Another draft, more corrections.</revremark> 558 </revision> 559 560 <revision> 561 <revnumber>0.2</revnumber> 562 <date>2003-01-15</date> 563 <authorinitials>mhs</authorinitials> 564 <revremark>Second draft, with corrections pointed out by Gerd 565 Knorr.</revremark> 566 </revision> 567 568 <revision> 569 <revnumber>0.1</revnumber> 570 <date>2002-12-01</date> 571 <authorinitials>mhs</authorinitials> 572 <revremark>First draft, based on documentation by Bill Dirks 573 and discussions on the V4L mailing list.</revremark> 574 </revision> 575 </revhistory> 576 </partinfo> 577 578 <title>Video for Linux Two API Specification</title> 579 <subtitle>Revision 4.4</subtitle> 580 581 <chapter id="common"> 582 &sub-common; 583 </chapter> 584 585 <chapter id="pixfmt"> 586 &sub-pixfmt; 587 </chapter> 588 589 <chapter id="io"> 590 &sub-io; 591 </chapter> 592 593 <chapter id="devices"> 594 <title>Interfaces</title> 595 596 <section id="capture"> &sub-dev-capture; </section> 597 <section id="overlay"> &sub-dev-overlay; </section> 598 <section id="output"> &sub-dev-output; </section> 599 <section id="osd"> &sub-dev-osd; </section> 600 <section id="codec"> &sub-dev-codec; </section> 601 <section id="effect"> &sub-dev-effect; </section> 602 <section id="raw-vbi"> &sub-dev-raw-vbi; </section> 603 <section id="sliced"> &sub-dev-sliced-vbi; </section> 604 <section id="ttx"> &sub-dev-teletext; </section> 605 <section id="radio"> &sub-dev-radio; </section> 606 <section id="rds"> &sub-dev-rds; </section> 607 <section id="sdr"> &sub-dev-sdr; </section> 608 <section id="event"> &sub-dev-event; </section> 609 <section id="subdev"> &sub-dev-subdev; </section> 610 </chapter> 611 612 <chapter id="driver"> 613 &sub-driver; 614 </chapter> 615 616 <chapter id="libv4l"> 617 &sub-libv4l; 618 </chapter> 619 620 <chapter id="compat"> 621 &sub-compat; 622 </chapter> 623 624 <appendix id="user-func"> 625 <title>Function Reference</title> 626 627 <!-- Keep this alphabetically sorted. --> 628 629 &sub-close; 630 &sub-ioctl; 631 <!-- All ioctls go here. --> 632 &sub-create-bufs; 633 &sub-cropcap; 634 &sub-dbg-g-chip-info; 635 &sub-dbg-g-register; 636 &sub-decoder-cmd; 637 &sub-dqevent; 638 &sub-dv-timings-cap; 639 &sub-encoder-cmd; 640 &sub-enumaudio; 641 &sub-enumaudioout; 642 &sub-enum-dv-timings; 643 &sub-enum-fmt; 644 &sub-enum-framesizes; 645 &sub-enum-frameintervals; 646 &sub-enum-freq-bands; 647 &sub-enuminput; 648 &sub-enumoutput; 649 &sub-enumstd; 650 &sub-expbuf; 651 &sub-g-audio; 652 &sub-g-audioout; 653 &sub-g-crop; 654 &sub-g-ctrl; 655 &sub-g-dv-timings; 656 &sub-g-edid; 657 &sub-g-enc-index; 658 &sub-g-ext-ctrls; 659 &sub-g-fbuf; 660 &sub-g-fmt; 661 &sub-g-frequency; 662 &sub-g-input; 663 &sub-g-jpegcomp; 664 &sub-g-modulator; 665 &sub-g-output; 666 &sub-g-parm; 667 &sub-g-priority; 668 &sub-g-selection; 669 &sub-g-sliced-vbi-cap; 670 &sub-g-std; 671 &sub-g-tuner; 672 &sub-log-status; 673 &sub-overlay; 674 &sub-prepare-buf; 675 &sub-qbuf; 676 &sub-querybuf; 677 &sub-querycap; 678 &sub-queryctrl; 679 &sub-query-dv-timings; 680 &sub-querystd; 681 &sub-reqbufs; 682 &sub-s-hw-freq-seek; 683 &sub-streamon; 684 &sub-subdev-enum-frame-interval; 685 &sub-subdev-enum-frame-size; 686 &sub-subdev-enum-mbus-code; 687 &sub-subdev-g-crop; 688 &sub-subdev-g-fmt; 689 &sub-subdev-g-frame-interval; 690 &sub-subdev-g-selection; 691 &sub-subscribe-event; 692 <!-- End of ioctls. --> 693 &sub-mmap; 694 &sub-munmap; 695 &sub-open; 696 &sub-poll; 697 &sub-read; 698 &sub-select; 699 &sub-write; 700 </appendix> 701 702 <appendix> 703 <title>Common definitions for V4L2 and V4L2 subdev interfaces</title> 704 &sub-selections-common; 705 </appendix> 706 707 <appendix id="videodev"> 708 <title>Video For Linux Two Header File</title> 709 &sub-videodev2-h; 710 </appendix> 711 712 <appendix id="capture-example"> 713 <title>Video Capture Example</title> 714 &sub-capture-c; 715 </appendix> 716 717 <appendix id="v4l2grab-example"> 718 <title>Video Grabber example using libv4l</title> 719 <para>This program demonstrates how to grab V4L2 images in ppm format by 720 using libv4l handlers. The advantage is that this grabber can potentially work 721 with any V4L2 driver.</para> 722 &sub-v4l2grab-c; 723 </appendix> 724 725 &sub-media-indices; 726 727 &sub-biblio;
