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6afdeaf865
A trivial change to update my email address from my dead awalls@radix.net address to my current awalls@md.metrocast.net address. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
505 lines
14 KiB
XML
505 lines
14 KiB
XML
<partinfo>
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<authorgroup>
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<author>
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<firstname>Michael</firstname>
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<surname>Schimek</surname>
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<othername role="mi">H</othername>
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<affiliation>
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<address>
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<email>mschimek@gmx.at</email>
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</address>
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</affiliation>
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</author>
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<author>
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<firstname>Bill</firstname>
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<surname>Dirks</surname>
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<!-- Commented until Bill opts in to be spammed.
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<affiliation>
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<address>
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<email>bill@thedirks.org</email>
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</address>
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</affiliation> -->
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<contrib>Original author of the V4L2 API and
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documentation.</contrib>
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</author>
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<author>
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<firstname>Hans</firstname>
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<surname>Verkuil</surname>
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<contrib>Designed and documented the VIDIOC_LOG_STATUS ioctl,
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the extended control ioctls and major parts of the sliced VBI
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API.</contrib>
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<affiliation>
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<address>
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<email>hverkuil@xs4all.nl</email>
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</address>
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</affiliation>
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</author>
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<author>
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<firstname>Martin</firstname>
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<surname>Rubli</surname>
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<!--
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<affiliation>
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<address>
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<email>martin_rubli@logitech.com</email>
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</address>
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</affiliation> -->
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<contrib>Designed and documented the VIDIOC_ENUM_FRAMESIZES
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and VIDIOC_ENUM_FRAMEINTERVALS ioctls.</contrib>
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</author>
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<author>
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<firstname>Andy</firstname>
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<surname>Walls</surname>
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<contrib>Documented the fielded V4L2_MPEG_STREAM_VBI_FMT_IVTV
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MPEG stream embedded, sliced VBI data format in this specification.
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</contrib>
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<affiliation>
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<address>
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<email>awalls@md.metrocast.net</email>
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</address>
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</affiliation>
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</author>
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<author>
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<firstname>Mauro</firstname>
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<surname>Carvalho Chehab</surname>
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<contrib>Documented libv4l, designed and added v4l2grab example,
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Remote Controller chapter.</contrib>
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<affiliation>
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<address>
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<email>mchehab@redhat.com</email>
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</address>
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</affiliation>
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</author>
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<author>
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<firstname>Muralidharan</firstname>
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<surname>Karicheri</surname>
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<contrib>Documented the Digital Video timings API.</contrib>
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<affiliation>
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<address>
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<email>m-karicheri2@ti.com</email>
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</address>
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</affiliation>
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</author>
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</authorgroup>
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<copyright>
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<year>1999</year>
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<year>2000</year>
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<year>2001</year>
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<year>2002</year>
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<year>2003</year>
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<year>2004</year>
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<year>2005</year>
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<year>2006</year>
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<year>2007</year>
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<year>2008</year>
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<year>2009</year>
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<holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin
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Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab</holder>
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</copyright>
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<legalnotice>
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<para>Except when explicitly stated as GPL, programming examples within
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this part can be used and distributed without restrictions.</para>
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</legalnotice>
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<revhistory>
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<!-- Put document revisions here, newest first. -->
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<!-- API revisions (changes and additions of defines, enums,
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structs, ioctls) must be noted in more detail in the history chapter
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(compat.sgml), along with the possible impact on existing drivers and
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applications. -->
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<revision>
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<revnumber>2.6.33</revnumber>
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<date>2009-12-03</date>
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<authorinitials>mk</authorinitials>
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<revremark>Added documentation for the Digital Video timings API.</revremark>
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</revision>
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<revision>
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<revnumber>2.6.32</revnumber>
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<date>2009-08-31</date>
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<authorinitials>mcc</authorinitials>
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<revremark>Now, revisions will match the kernel version where
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the V4L2 API changes will be used by the Linux Kernel.
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Also added Remote Controller chapter.</revremark>
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</revision>
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<revision>
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<revnumber>0.29</revnumber>
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<date>2009-08-26</date>
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<authorinitials>ev</authorinitials>
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<revremark>Added documentation for string controls and for FM Transmitter controls.</revremark>
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</revision>
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<revision>
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<revnumber>0.28</revnumber>
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<date>2009-08-26</date>
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<authorinitials>gl</authorinitials>
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<revremark>Added V4L2_CID_BAND_STOP_FILTER documentation.</revremark>
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</revision>
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<revision>
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<revnumber>0.27</revnumber>
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<date>2009-08-15</date>
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<authorinitials>mcc</authorinitials>
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<revremark>Added libv4l and Remote Controller documentation;
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added v4l2grab and keytable application examples.</revremark>
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</revision>
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<revision>
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<revnumber>0.26</revnumber>
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<date>2009-07-23</date>
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<authorinitials>hv</authorinitials>
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<revremark>Finalized the RDS capture API. Added modulator and RDS encoder
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capabilities. Added support for string controls.</revremark>
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</revision>
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<revision>
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<revnumber>0.25</revnumber>
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<date>2009-01-18</date>
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<authorinitials>hv</authorinitials>
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<revremark>Added pixel formats VYUY, NV16 and NV61, and changed
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the debug ioctls VIDIOC_DBG_G/S_REGISTER and VIDIOC_DBG_G_CHIP_IDENT.
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Added camera controls V4L2_CID_ZOOM_ABSOLUTE, V4L2_CID_ZOOM_RELATIVE,
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V4L2_CID_ZOOM_CONTINUOUS and V4L2_CID_PRIVACY.</revremark>
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</revision>
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<revision>
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<revnumber>0.24</revnumber>
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<date>2008-03-04</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Added pixel formats Y16 and SBGGR16, new controls
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and a camera controls class. Removed VIDIOC_G/S_MPEGCOMP.</revremark>
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</revision>
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<revision>
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<revnumber>0.23</revnumber>
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<date>2007-08-30</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Fixed a typo in VIDIOC_DBG_G/S_REGISTER.
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Clarified the byte order of packed pixel formats.</revremark>
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</revision>
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<revision>
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<revnumber>0.22</revnumber>
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<date>2007-08-29</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Added the Video Output Overlay interface, new MPEG
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controls, V4L2_FIELD_INTERLACED_TB and V4L2_FIELD_INTERLACED_BT,
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VIDIOC_DBG_G/S_REGISTER, VIDIOC_(TRY_)ENCODER_CMD,
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VIDIOC_G_CHIP_IDENT, VIDIOC_G_ENC_INDEX, new pixel formats.
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Clarifications in the cropping chapter, about RGB pixel formats, the
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mmap(), poll(), select(), read() and write() functions. Typographical
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fixes.</revremark>
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</revision>
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<revision>
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<revnumber>0.21</revnumber>
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<date>2006-12-19</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Fixed a link in the VIDIOC_G_EXT_CTRLS section.</revremark>
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</revision>
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<revision>
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<revnumber>0.20</revnumber>
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<date>2006-11-24</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Clarified the purpose of the audioset field in
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struct v4l2_input and v4l2_output.</revremark>
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</revision>
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<revision>
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<revnumber>0.19</revnumber>
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<date>2006-10-19</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Documented V4L2_PIX_FMT_RGB444.</revremark>
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</revision>
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<revision>
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<revnumber>0.18</revnumber>
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<date>2006-10-18</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Added the description of extended controls by Hans
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Verkuil. Linked V4L2_PIX_FMT_MPEG to V4L2_CID_MPEG_STREAM_TYPE.</revremark>
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</revision>
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<revision>
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<revnumber>0.17</revnumber>
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<date>2006-10-12</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Corrected V4L2_PIX_FMT_HM12 description.</revremark>
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</revision>
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<revision>
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<revnumber>0.16</revnumber>
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<date>2006-10-08</date>
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<authorinitials>mhs</authorinitials>
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<revremark>VIDIOC_ENUM_FRAMESIZES and
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VIDIOC_ENUM_FRAMEINTERVALS are now part of the API.</revremark>
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</revision>
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<revision>
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<revnumber>0.15</revnumber>
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<date>2006-09-23</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Cleaned up the bibliography, added BT.653 and
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BT.1119. capture.c/start_capturing() for user pointer I/O did not
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initialize the buffer index. Documented the V4L MPEG and MJPEG
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VID_TYPEs and V4L2_PIX_FMT_SBGGR8. Updated the list of reserved pixel
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formats. See the history chapter for API changes.</revremark>
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</revision>
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<revision>
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<revnumber>0.14</revnumber>
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<date>2006-09-14</date>
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<authorinitials>mr</authorinitials>
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<revremark>Added VIDIOC_ENUM_FRAMESIZES and
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VIDIOC_ENUM_FRAMEINTERVALS proposal for frame format enumeration of
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digital devices.</revremark>
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</revision>
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<revision>
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<revnumber>0.13</revnumber>
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<date>2006-04-07</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Corrected the description of struct v4l2_window
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clips. New V4L2_STD_ and V4L2_TUNER_MODE_LANG1_LANG2
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defines.</revremark>
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</revision>
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<revision>
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<revnumber>0.12</revnumber>
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<date>2006-02-03</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Corrected the description of struct
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v4l2_captureparm and v4l2_outputparm.</revremark>
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</revision>
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<revision>
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<revnumber>0.11</revnumber>
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<date>2006-01-27</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Improved the description of struct
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v4l2_tuner.</revremark>
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</revision>
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<revision>
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<revnumber>0.10</revnumber>
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<date>2006-01-10</date>
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<authorinitials>mhs</authorinitials>
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<revremark>VIDIOC_G_INPUT and VIDIOC_S_PARM
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clarifications.</revremark>
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</revision>
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<revision>
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<revnumber>0.9</revnumber>
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<date>2005-11-27</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Improved the 525 line numbering diagram. Hans
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Verkuil and I rewrote the sliced VBI section. He also contributed a
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VIDIOC_LOG_STATUS page. Fixed VIDIOC_S_STD call in the video standard
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selection example. Various updates.</revremark>
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</revision>
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<revision>
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<revnumber>0.8</revnumber>
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<date>2004-10-04</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Somehow a piece of junk slipped into the capture
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example, removed.</revremark>
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</revision>
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<revision>
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<revnumber>0.7</revnumber>
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<date>2004-09-19</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Fixed video standard selection, control
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enumeration, downscaling and aspect example. Added read and user
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pointer i/o to video capture example.</revremark>
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</revision>
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<revision>
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<revnumber>0.6</revnumber>
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<date>2004-08-01</date>
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<authorinitials>mhs</authorinitials>
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<revremark>v4l2_buffer changes, added video capture example,
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various corrections.</revremark>
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</revision>
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<revision>
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<revnumber>0.5</revnumber>
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<date>2003-11-05</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Pixel format erratum.</revremark>
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</revision>
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<revision>
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<revnumber>0.4</revnumber>
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<date>2003-09-17</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Corrected source and Makefile to generate a PDF.
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SGML fixes. Added latest API changes. Closed gaps in the history
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chapter.</revremark>
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</revision>
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<revision>
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<revnumber>0.3</revnumber>
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<date>2003-02-05</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Another draft, more corrections.</revremark>
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</revision>
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<revision>
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<revnumber>0.2</revnumber>
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<date>2003-01-15</date>
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<authorinitials>mhs</authorinitials>
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<revremark>Second draft, with corrections pointed out by Gerd
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Knorr.</revremark>
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</revision>
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<revision>
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<revnumber>0.1</revnumber>
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<date>2002-12-01</date>
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<authorinitials>mhs</authorinitials>
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<revremark>First draft, based on documentation by Bill Dirks
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and discussions on the V4L mailing list.</revremark>
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</revision>
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</revhistory>
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</partinfo>
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<title>Video for Linux Two API Specification</title>
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<subtitle>Revision 2.6.33</subtitle>
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<chapter id="common">
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&sub-common;
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</chapter>
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<chapter id="pixfmt">
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&sub-pixfmt;
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</chapter>
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<chapter id="io">
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&sub-io;
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</chapter>
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<chapter id="devices">
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<title>Interfaces</title>
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<section id="capture"> &sub-dev-capture; </section>
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<section id="overlay"> &sub-dev-overlay; </section>
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<section id="output"> &sub-dev-output; </section>
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<section id="osd"> &sub-dev-osd; </section>
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<section id="codec"> &sub-dev-codec; </section>
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<section id="effect"> &sub-dev-effect; </section>
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<section id="raw-vbi"> &sub-dev-raw-vbi; </section>
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<section id="sliced"> &sub-dev-sliced-vbi; </section>
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<section id="ttx"> &sub-dev-teletext; </section>
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<section id="radio"> &sub-dev-radio; </section>
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<section id="rds"> &sub-dev-rds; </section>
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<section id="event"> &sub-dev-event; </section>
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</chapter>
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<chapter id="driver">
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&sub-driver;
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</chapter>
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<chapter id="libv4l">
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&sub-libv4l;
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</chapter>
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<chapter id="compat">
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&sub-compat;
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</chapter>
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<appendix id="user-func">
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<title>Function Reference</title>
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<!-- Keep this alphabetically sorted. -->
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&sub-close;
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&sub-ioctl;
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<!-- All ioctls go here. -->
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&sub-cropcap;
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&sub-dbg-g-chip-ident;
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&sub-dbg-g-register;
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&sub-dqevent;
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&sub-encoder-cmd;
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&sub-enumaudio;
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&sub-enumaudioout;
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&sub-enum-dv-presets;
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&sub-enum-fmt;
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&sub-enum-framesizes;
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&sub-enum-frameintervals;
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&sub-enuminput;
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&sub-enumoutput;
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&sub-enumstd;
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&sub-g-audio;
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&sub-g-audioout;
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&sub-g-crop;
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&sub-g-ctrl;
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&sub-g-dv-preset;
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&sub-g-dv-timings;
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&sub-g-enc-index;
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&sub-g-ext-ctrls;
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&sub-g-fbuf;
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&sub-g-fmt;
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&sub-g-frequency;
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&sub-g-input;
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&sub-g-jpegcomp;
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&sub-g-modulator;
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&sub-g-output;
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&sub-g-parm;
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&sub-g-priority;
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&sub-g-sliced-vbi-cap;
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&sub-g-std;
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&sub-g-tuner;
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&sub-log-status;
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&sub-overlay;
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&sub-qbuf;
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&sub-querybuf;
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&sub-querycap;
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&sub-queryctrl;
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&sub-query-dv-preset;
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&sub-querystd;
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&sub-reqbufs;
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&sub-s-hw-freq-seek;
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&sub-streamon;
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&sub-subscribe-event;
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<!-- End of ioctls. -->
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&sub-mmap;
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&sub-munmap;
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&sub-open;
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&sub-poll;
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&sub-read;
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&sub-select;
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&sub-write;
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</appendix>
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<appendix id="videodev">
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<title>Video For Linux Two Header File</title>
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&sub-videodev2-h;
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</appendix>
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<appendix id="capture-example">
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<title>Video Capture Example</title>
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&sub-capture-c;
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|
</appendix>
|
|
|
|
<appendix id="v4l2grab-example">
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|
<title>Video Grabber example using libv4l</title>
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|
<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>
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|
&sub-v4l2grab-c;
|
|
</appendix>
|
|
|
|
&sub-media-indices;
|
|
|
|
&sub-biblio;
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|
|