991ce92f8d
While https was always supported on linuxtv.org, only in Dec 3 2015 the website is using valid certificates. As we're planning to drop pure http support on some future, change all references at the media subsystem to point to the https URL instead. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
118 lines
7.4 KiB
XML
118 lines
7.4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % media-entities SYSTEM "./media-entities.tmpl"> %media-entities;
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<!ENTITY media-indices SYSTEM "./media-indices.tmpl">
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<!ENTITY eg "e. g.">
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<!ENTITY ie "i. e.">
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<!ENTITY fd "File descriptor returned by <link linkend='func-open'><function>open()</function></link>.">
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<!ENTITY fe_fd "File descriptor returned by <link linkend='frontend_f_open'><function>open()</function></link>.">
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<!ENTITY i2c "I<superscript>2</superscript>C">
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<!ENTITY return-value "<title>Return Value</title><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>">
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<!ENTITY return-value-dvb "<para>RETURN VALUE</para><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>">
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<!ENTITY manvol "<manvolnum>2</manvolnum>">
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<!-- Table templates: structs, structs w/union, defines. -->
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<!ENTITY cs-str "<colspec colname='c1' colwidth='1*' /><colspec colname='c2' colwidth='1*' /><colspec colname='c3' colwidth='2*' /><spanspec spanname='hspan' namest='c1' nameend='c3' />">
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<!ENTITY cs-ustr "<colspec colname='c1' colwidth='1*' /><colspec colname='c2' colwidth='1*' /><colspec colname='c3' colwidth='1*' /><colspec colname='c4' colwidth='2*' /><spanspec spanname='hspan' namest='c1' nameend='c4' />">
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<!ENTITY cs-def "<colspec colname='c1' colwidth='3*' /><colspec colname='c2' colwidth='1*' /><colspec colname='c3' colwidth='4*' /><spanspec spanname='hspan' namest='c1' nameend='c3' />">
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<!-- Video for Linux mailing list address. -->
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<!ENTITY v4l-ml "<ulink url='https://linuxtv.org/lists.php'>https://linuxtv.org/lists.php</ulink>">
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<!-- LinuxTV v4l-dvb repository. -->
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<!ENTITY v4l-dvb "<ulink url='https://linuxtv.org/repo/'>https://linuxtv.org/repo/</ulink>">
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<!ENTITY dash-ent-8 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-10 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-12 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-14 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-16 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-20 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-22 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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<!ENTITY dash-ent-24 "<entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry><entry>-</entry>">
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]>
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<book id="media_api" lang="en">
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<bookinfo>
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<title>LINUX MEDIA INFRASTRUCTURE API</title>
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<copyright>
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<year>2009-2015</year>
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<holder>LinuxTV Developers</holder>
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</copyright>
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<legalnotice>
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<para>Permission is granted to copy, distribute and/or modify
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this document under the terms of the GNU Free Documentation License,
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Version 1.1 or any later version published by the Free Software
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Foundation. A copy of the license is included in the chapter entitled
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"GNU Free Documentation License"</para>
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</legalnotice>
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</bookinfo>
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<toc></toc> <!-- autogenerated -->
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<preface>
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<title>Introduction</title>
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<para>This document covers the Linux Kernel to Userspace API's used by
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video and radio streaming devices, including video cameras,
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analog and digital TV receiver cards, AM/FM receiver cards,
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streaming capture and output devices, codec devices and remote
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controllers.</para>
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<para>A typical media device hardware is shown at
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<xref linkend="typical_media_device" />.</para>
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<figure id="typical_media_device">
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<title>Typical Media Device</title>
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<mediaobject>
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<imageobject>
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<imagedata fileref="typical_media_device.svg" format="SVG" />
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</imageobject>
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<textobject>
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<phrase>Typical Media Device Block Diagram</phrase>
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</textobject>
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</mediaobject>
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</figure>
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<para>The media infrastructure API was designed to control such
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devices. It is divided into four parts.</para>
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<para>The first part covers radio, video capture and output,
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cameras, analog TV devices and codecs.</para>
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<para>The second part covers the
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API used for digital TV and Internet reception via one of the
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several digital tv standards. While it is called as DVB API,
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in fact it covers several different video standards including
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DVB-T/T2, DVB-S/S2, DVB-C, ATSC, ISDB-T, ISDB-S,etc. The complete
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list of supported standards can be found at
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<xref linkend="fe-delivery-system-t" />.</para>
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<para>The third part covers the Remote Controller API.</para>
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<para>The fourth part covers the Media Controller API.</para>
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<para>It should also be noted that a media device may also have audio
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components, like mixers, PCM capture, PCM playback, etc, which
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are controlled via ALSA API.</para>
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<para>For additional information and for the latest development code,
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see: <ulink url="https://linuxtv.org">https://linuxtv.org</ulink>.</para>
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<para>For discussing improvements, reporting troubles, sending new drivers, etc, please mail to: <ulink url="http://vger.kernel.org/vger-lists.html#linux-media">Linux Media Mailing List (LMML).</ulink>.</para>
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</preface>
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<part id="v4l2spec">
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&sub-v4l2;
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</part>
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<part id="dvbapi">
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&sub-dvbapi;
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</part>
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<part id="remotes">
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&sub-remote_controllers;
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</part>
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<part id="media_common">
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&sub-media-controller;
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</part>
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<chapter id="gen_errors">
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&sub-gen-errors;
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</chapter>
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&sub-fdl-appendix;
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</book>
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