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- <partinfo>
- <authorgroup>
- <author>
- <firstname>Michael</firstname>
- <surname>Schimek</surname>
- <othername role="mi">H</othername>
- <affiliation>
- <address>
- <email>mschimek@gmx.at</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Bill</firstname>
- <surname>Dirks</surname>
- <!-- Commented until Bill opts in to be spammed.
- <affiliation>
- <address>
- <email>bill@thedirks.org</email>
- </address>
- </affiliation> -->
- <contrib>Original author of the V4L2 API and
-documentation.</contrib>
- </author>
-
- <author>
- <firstname>Hans</firstname>
- <surname>Verkuil</surname>
- <contrib>Designed and documented the VIDIOC_LOG_STATUS ioctl,
-the extended control ioctls, major parts of the sliced VBI API, the
-MPEG encoder and decoder APIs and the DV Timings API.</contrib>
- <affiliation>
- <address>
- <email>hverkuil@xs4all.nl</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Martin</firstname>
- <surname>Rubli</surname>
- <!--
- <affiliation>
- <address>
- <email>martin_rubli@logitech.com</email>
- </address>
- </affiliation> -->
- <contrib>Designed and documented the VIDIOC_ENUM_FRAMESIZES
-and VIDIOC_ENUM_FRAMEINTERVALS ioctls.</contrib>
- </author>
-
- <author>
- <firstname>Andy</firstname>
- <surname>Walls</surname>
- <contrib>Documented the fielded V4L2_MPEG_STREAM_VBI_FMT_IVTV
-MPEG stream embedded, sliced VBI data format in this specification.
-</contrib>
- <affiliation>
- <address>
- <email>awalls@md.metrocast.net</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Mauro</firstname>
- <surname>Carvalho Chehab</surname>
- <contrib>Documented libv4l, designed and added v4l2grab example,
-Remote Controller chapter.</contrib>
- <affiliation>
- <address>
- <email>m.chehab@samsung.com</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Muralidharan</firstname>
- <surname>Karicheri</surname>
- <contrib>Documented the Digital Video timings API.</contrib>
- <affiliation>
- <address>
- <email>m-karicheri2@ti.com</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Pawel</firstname>
- <surname>Osciak</surname>
- <contrib>Designed and documented the multi-planar API.</contrib>
- <affiliation>
- <address>
- <email>pawel AT osciak.com</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Sakari</firstname>
- <surname>Ailus</surname>
- <contrib>Subdev selections API.</contrib>
- <affiliation>
- <address>
- <email>sakari.ailus@iki.fi</email>
- </address>
- </affiliation>
- </author>
- <author>
- <firstname>Antti</firstname>
- <surname>Palosaari</surname>
- <contrib>SDR API.</contrib>
- <affiliation>
- <address>
- <email>crope@iki.fi</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>1999</year>
- <year>2000</year>
- <year>2001</year>
- <year>2002</year>
- <year>2003</year>
- <year>2004</year>
- <year>2005</year>
- <year>2006</year>
- <year>2007</year>
- <year>2008</year>
- <year>2009</year>
- <year>2010</year>
- <year>2011</year>
- <year>2012</year>
- <year>2013</year>
- <year>2014</year>
- <year>2015</year>
- <holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin
-Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab,
- Pawel Osciak</holder>
- </copyright>
- <legalnotice>
- <para>Except when explicitly stated as GPL, programming examples within
- this part can be used and distributed without restrictions.</para>
- </legalnotice>
- <revhistory>
- <!-- Put document revisions here, newest first. -->
- <!-- API revisions (changes and additions of defines, enums,
-structs, ioctls) must be noted in more detail in the history chapter
-(compat.xml), along with the possible impact on existing drivers and
-applications. -->
- <revision>
- <revnumber>4.5</revnumber>
- <date>2015-10-29</date>
- <authorinitials>rr</authorinitials>
- <revremark>Extend vidioc-g-ext-ctrls;. Replace ctrl_class with a new
-union with ctrl_class and which. Which is used to select the current value of
-the control or the default value.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>4.4</revnumber>
- <date>2015-05-26</date>
- <authorinitials>ap</authorinitials>
- <revremark>Renamed V4L2_TUNER_ADC to V4L2_TUNER_SDR.
-Added V4L2_CID_RF_TUNER_RF_GAIN control.
-Added transmitter support for Software Defined Radio (SDR) Interface.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>4.1</revnumber>
- <date>2015-02-13</date>
- <authorinitials>mcc</authorinitials>
- <revremark>Fix documentation for media controller device nodes and add support for DVB device nodes.
-Add support for Tuner sub-device.
- </revremark>
- </revision>
- <revision>
- <revnumber>3.19</revnumber>
- <date>2014-12-05</date>
- <authorinitials>hv</authorinitials>
- <revremark>Rewrote Colorspace chapter, added new &v4l2-ycbcr-encoding; and &v4l2-quantization; fields
-to &v4l2-pix-format;, &v4l2-pix-format-mplane; and &v4l2-mbus-framefmt;.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.17</revnumber>
- <date>2014-08-04</date>
- <authorinitials>lp, hv</authorinitials>
- <revremark>Extended &v4l2-pix-format;. Added format flags. Added compound control types
-and VIDIOC_QUERY_EXT_CTRL.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.15</revnumber>
- <date>2014-02-03</date>
- <authorinitials>hv, ap</authorinitials>
- <revremark>Update several sections of "Common API Elements": "Opening and Closing Devices"
-"Querying Capabilities", "Application Priority", "Video Inputs and Outputs", "Audio Inputs and Outputs"
-"Tuners and Modulators", "Video Standards" and "Digital Video (DV) Timings". Added SDR API.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.14</revnumber>
- <date>2013-11-25</date>
- <authorinitials>rr</authorinitials>
- <revremark>Set width and height as unsigned on v4l2_rect.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.11</revnumber>
- <date>2013-05-26</date>
- <authorinitials>hv</authorinitials>
- <revremark>Remove obsolete VIDIOC_DBG_G_CHIP_IDENT ioctl.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.10</revnumber>
- <date>2013-03-25</date>
- <authorinitials>hv</authorinitials>
- <revremark>Remove obsolete and unused DV_PRESET ioctls:
- VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET, VIDIOC_QUERY_DV_PRESET and
- VIDIOC_ENUM_DV_PRESET. Remove the related v4l2_input/output capability
- flags V4L2_IN_CAP_PRESETS and V4L2_OUT_CAP_PRESETS. Added VIDIOC_DBG_G_CHIP_INFO.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.9</revnumber>
- <date>2012-12-03</date>
- <authorinitials>sa, sn</authorinitials>
- <revremark>Added timestamp types to v4l2_buffer.
- Added V4L2_EVENT_CTRL_CH_RANGE control event changes flag.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.6</revnumber>
- <date>2012-07-02</date>
- <authorinitials>hv</authorinitials>
- <revremark>Added VIDIOC_ENUM_FREQ_BANDS.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.5</revnumber>
- <date>2012-05-07</date>
- <authorinitials>sa, sn, hv</authorinitials>
- <revremark>Added V4L2_CTRL_TYPE_INTEGER_MENU and V4L2 subdev
- selections API. Improved the description of V4L2_CID_COLORFX
- control, added V4L2_CID_COLORFX_CBCR control.
- Added camera controls V4L2_CID_AUTO_EXPOSURE_BIAS,
- V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, V4L2_CID_IMAGE_STABILIZATION,
- V4L2_CID_ISO_SENSITIVITY, V4L2_CID_ISO_SENSITIVITY_AUTO,
- V4L2_CID_EXPOSURE_METERING, V4L2_CID_SCENE_MODE,
- V4L2_CID_3A_LOCK, V4L2_CID_AUTO_FOCUS_START,
- V4L2_CID_AUTO_FOCUS_STOP, V4L2_CID_AUTO_FOCUS_STATUS
- and V4L2_CID_AUTO_FOCUS_RANGE.
- Added VIDIOC_ENUM_DV_TIMINGS, VIDIOC_QUERY_DV_TIMINGS and
- VIDIOC_DV_TIMINGS_CAP.
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.4</revnumber>
- <date>2012-01-25</date>
- <authorinitials>sn</authorinitials>
- <revremark>Added <link linkend="jpeg-controls">JPEG compression
- control class.</link>
- </revremark>
- </revision>
-
- <revision>
- <revnumber>3.3</revnumber>
- <date>2012-01-11</date>
- <authorinitials>hv</authorinitials>
- <revremark>Added device_caps field to struct v4l2_capabilities.</revremark>
- </revision>
-
- <revision>
- <revnumber>3.2</revnumber>
- <date>2011-08-26</date>
- <authorinitials>hv</authorinitials>
- <revremark>Added V4L2_CTRL_FLAG_VOLATILE.</revremark>
- </revision>
-
- <revision>
- <revnumber>3.1</revnumber>
- <date>2011-06-27</date>
- <authorinitials>mcc, po, hv</authorinitials>
- <revremark>Documented that VIDIOC_QUERYCAP now returns a per-subsystem version instead of a per-driver one.
- Standardize an error code for invalid ioctl.
- Added V4L2_CTRL_TYPE_BITMASK.</revremark>
- </revision>
-
- <revision>
- <revnumber>2.6.39</revnumber>
- <date>2011-03-01</date>
- <authorinitials>mcc, po</authorinitials>
- <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>
- </revision>
-
- <revision>
- <revnumber>2.6.37</revnumber>
- <date>2010-08-06</date>
- <authorinitials>hv</authorinitials>
- <revremark>Removed obsolete vtx (videotext) API.</revremark>
- </revision>
-
- <revision>
- <revnumber>2.6.33</revnumber>
- <date>2009-12-03</date>
- <authorinitials>mk</authorinitials>
- <revremark>Added documentation for the Digital Video timings API.</revremark>
- </revision>
-
- <revision>
- <revnumber>2.6.32</revnumber>
- <date>2009-08-31</date>
- <authorinitials>mcc</authorinitials>
- <revremark>Now, revisions will match the kernel version where
-the V4L2 API changes will be used by the Linux Kernel.
-Also added Remote Controller chapter.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.29</revnumber>
- <date>2009-08-26</date>
- <authorinitials>ev</authorinitials>
- <revremark>Added documentation for string controls and for FM Transmitter controls.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.28</revnumber>
- <date>2009-08-26</date>
- <authorinitials>gl</authorinitials>
- <revremark>Added V4L2_CID_BAND_STOP_FILTER documentation.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.27</revnumber>
- <date>2009-08-15</date>
- <authorinitials>mcc</authorinitials>
- <revremark>Added libv4l and Remote Controller documentation;
-added v4l2grab and keytable application examples.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.26</revnumber>
- <date>2009-07-23</date>
- <authorinitials>hv</authorinitials>
- <revremark>Finalized the RDS capture API. Added modulator and RDS encoder
-capabilities. Added support for string controls.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.25</revnumber>
- <date>2009-01-18</date>
- <authorinitials>hv</authorinitials>
- <revremark>Added pixel formats VYUY, NV16 and NV61, and changed
-the debug ioctls VIDIOC_DBG_G/S_REGISTER and VIDIOC_DBG_G_CHIP_IDENT.
-Added camera controls V4L2_CID_ZOOM_ABSOLUTE, V4L2_CID_ZOOM_RELATIVE,
-V4L2_CID_ZOOM_CONTINUOUS and V4L2_CID_PRIVACY.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.24</revnumber>
- <date>2008-03-04</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Added pixel formats Y16 and SBGGR16, new controls
-and a camera controls class. Removed VIDIOC_G/S_MPEGCOMP.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.23</revnumber>
- <date>2007-08-30</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Fixed a typo in VIDIOC_DBG_G/S_REGISTER.
-Clarified the byte order of packed pixel formats.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.22</revnumber>
- <date>2007-08-29</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Added the Video Output Overlay interface, new MPEG
-controls, V4L2_FIELD_INTERLACED_TB and V4L2_FIELD_INTERLACED_BT,
-VIDIOC_DBG_G/S_REGISTER, VIDIOC_(TRY_)ENCODER_CMD,
-VIDIOC_G_CHIP_IDENT, VIDIOC_G_ENC_INDEX, new pixel formats.
-Clarifications in the cropping chapter, about RGB pixel formats, the
-mmap(), poll(), select(), read() and write() functions. Typographical
-fixes.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.21</revnumber>
- <date>2006-12-19</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Fixed a link in the VIDIOC_G_EXT_CTRLS section.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.20</revnumber>
- <date>2006-11-24</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Clarified the purpose of the audioset field in
-struct v4l2_input and v4l2_output.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.19</revnumber>
- <date>2006-10-19</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Documented V4L2_PIX_FMT_RGB444.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.18</revnumber>
- <date>2006-10-18</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Added the description of extended controls by Hans
-Verkuil. Linked V4L2_PIX_FMT_MPEG to V4L2_CID_MPEG_STREAM_TYPE.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.17</revnumber>
- <date>2006-10-12</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Corrected V4L2_PIX_FMT_HM12 description.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.16</revnumber>
- <date>2006-10-08</date>
- <authorinitials>mhs</authorinitials>
- <revremark>VIDIOC_ENUM_FRAMESIZES and
-VIDIOC_ENUM_FRAMEINTERVALS are now part of the API.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.15</revnumber>
- <date>2006-09-23</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Cleaned up the bibliography, added BT.653 and
-BT.1119. capture.c/start_capturing() for user pointer I/O did not
-initialize the buffer index. Documented the V4L MPEG and MJPEG
-VID_TYPEs and V4L2_PIX_FMT_SBGGR8. Updated the list of reserved pixel
-formats. See the history chapter for API changes.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.14</revnumber>
- <date>2006-09-14</date>
- <authorinitials>mr</authorinitials>
- <revremark>Added VIDIOC_ENUM_FRAMESIZES and
-VIDIOC_ENUM_FRAMEINTERVALS proposal for frame format enumeration of
-digital devices.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.13</revnumber>
- <date>2006-04-07</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Corrected the description of struct v4l2_window
-clips. New V4L2_STD_ and V4L2_TUNER_MODE_LANG1_LANG2
-defines.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.12</revnumber>
- <date>2006-02-03</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Corrected the description of struct
-v4l2_captureparm and v4l2_outputparm.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.11</revnumber>
- <date>2006-01-27</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Improved the description of struct
-v4l2_tuner.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.10</revnumber>
- <date>2006-01-10</date>
- <authorinitials>mhs</authorinitials>
- <revremark>VIDIOC_G_INPUT and VIDIOC_S_PARM
-clarifications.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.9</revnumber>
- <date>2005-11-27</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Improved the 525 line numbering diagram. Hans
-Verkuil and I rewrote the sliced VBI section. He also contributed a
-VIDIOC_LOG_STATUS page. Fixed VIDIOC_S_STD call in the video standard
-selection example. Various updates.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.8</revnumber>
- <date>2004-10-04</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Somehow a piece of junk slipped into the capture
-example, removed.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.7</revnumber>
- <date>2004-09-19</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Fixed video standard selection, control
-enumeration, downscaling and aspect example. Added read and user
-pointer i/o to video capture example.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.6</revnumber>
- <date>2004-08-01</date>
- <authorinitials>mhs</authorinitials>
- <revremark>v4l2_buffer changes, added video capture example,
-various corrections.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.5</revnumber>
- <date>2003-11-05</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Pixel format erratum.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.4</revnumber>
- <date>2003-09-17</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Corrected source and Makefile to generate a PDF.
-SGML fixes. Added latest API changes. Closed gaps in the history
-chapter.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.3</revnumber>
- <date>2003-02-05</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Another draft, more corrections.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.2</revnumber>
- <date>2003-01-15</date>
- <authorinitials>mhs</authorinitials>
- <revremark>Second draft, with corrections pointed out by Gerd
-Knorr.</revremark>
- </revision>
-
- <revision>
- <revnumber>0.1</revnumber>
- <date>2002-12-01</date>
- <authorinitials>mhs</authorinitials>
- <revremark>First draft, based on documentation by Bill Dirks
-and discussions on the V4L mailing list.</revremark>
- </revision>
- </revhistory>
-</partinfo>
-
-<title>Video for Linux Two API Specification</title>
- <subtitle>Revision 4.4</subtitle>
-
- <chapter id="common">
- &sub-common;
- </chapter>
-
- <chapter id="pixfmt">
- &sub-pixfmt;
- </chapter>
-
- <chapter id="io">
- &sub-io;
- </chapter>
-
- <chapter id="devices">
- <title>Interfaces</title>
-
- <section id="capture"> &sub-dev-capture; </section>
- <section id="overlay"> &sub-dev-overlay; </section>
- <section id="output"> &sub-dev-output; </section>
- <section id="osd"> &sub-dev-osd; </section>
- <section id="codec"> &sub-dev-codec; </section>
- <section id="effect"> &sub-dev-effect; </section>
- <section id="raw-vbi"> &sub-dev-raw-vbi; </section>
- <section id="sliced"> &sub-dev-sliced-vbi; </section>
- <section id="ttx"> &sub-dev-teletext; </section>
- <section id="radio"> &sub-dev-radio; </section>
- <section id="rds"> &sub-dev-rds; </section>
- <section id="sdr"> &sub-dev-sdr; </section>
- <section id="event"> &sub-dev-event; </section>
- <section id="subdev"> &sub-dev-subdev; </section>
- </chapter>
-
- <chapter id="driver">
- &sub-driver;
- </chapter>
-
- <chapter id="libv4l">
- &sub-libv4l;
- </chapter>
-
- <chapter id="compat">
- &sub-compat;
- </chapter>
-
- <appendix id="user-func">
- <title>Function Reference</title>
-
- <!-- Keep this alphabetically sorted. -->
-
- &sub-close;
- &sub-ioctl;
- <!-- All ioctls go here. -->
- &sub-create-bufs;
- &sub-cropcap;
- &sub-dbg-g-chip-info;
- &sub-dbg-g-register;
- &sub-decoder-cmd;
- &sub-dqevent;
- &sub-dv-timings-cap;
- &sub-encoder-cmd;
- &sub-enumaudio;
- &sub-enumaudioout;
- &sub-enum-dv-timings;
- &sub-enum-fmt;
- &sub-enum-framesizes;
- &sub-enum-frameintervals;
- &sub-enum-freq-bands;
- &sub-enuminput;
- &sub-enumoutput;
- &sub-enumstd;
- &sub-expbuf;
- &sub-g-audio;
- &sub-g-audioout;
- &sub-g-crop;
- &sub-g-ctrl;
- &sub-g-dv-timings;
- &sub-g-edid;
- &sub-g-enc-index;
- &sub-g-ext-ctrls;
- &sub-g-fbuf;
- &sub-g-fmt;
- &sub-g-frequency;
- &sub-g-input;
- &sub-g-jpegcomp;
- &sub-g-modulator;
- &sub-g-output;
- &sub-g-parm;
- &sub-g-priority;
- &sub-g-selection;
- &sub-g-sliced-vbi-cap;
- &sub-g-std;
- &sub-g-tuner;
- &sub-log-status;
- &sub-overlay;
- &sub-prepare-buf;
- &sub-qbuf;
- &sub-querybuf;
- &sub-querycap;
- &sub-queryctrl;
- &sub-query-dv-timings;
- &sub-querystd;
- &sub-reqbufs;
- &sub-s-hw-freq-seek;
- &sub-streamon;
- &sub-subdev-enum-frame-interval;
- &sub-subdev-enum-frame-size;
- &sub-subdev-enum-mbus-code;
- &sub-subdev-g-crop;
- &sub-subdev-g-fmt;
- &sub-subdev-g-frame-interval;
- &sub-subdev-g-selection;
- &sub-subscribe-event;
- <!-- End of ioctls. -->
- &sub-mmap;
- &sub-munmap;
- &sub-open;
- &sub-poll;
- &sub-read;
- &sub-select;
- &sub-write;
- </appendix>
-
- <appendix>
- <title>Common definitions for V4L2 and V4L2 subdev interfaces</title>
- &sub-selections-common;
- </appendix>
-
- <appendix id="videodev">
- <title>Video For Linux Two Header File</title>
- &sub-videodev2-h;
- </appendix>
-
- <appendix id="capture-example">
- <title>Video Capture Example</title>
- &sub-capture-c;
- </appendix>
-
- <appendix id="v4l2grab-example">
- <title>Video Grabber example using libv4l</title>
- <para>This program demonstrates how to grab V4L2 images in ppm format by
-using libv4l handlers. The advantage is that this grabber can potentially work
-with any V4L2 driver.</para>
- &sub-v4l2grab-c;
- </appendix>
-
- &sub-media-indices;
-
- &sub-biblio;
-