[ab4fdfc] | 1 | <?xml version="1.0" encoding="UTF-8"?>
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[80dbc4c8] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[5dd6d73] | 7 | <!ENTITY v4l-download-http "https://www.linuxtv.org/downloads/v4l-utils/v4l-utils-&v4l-utils-version;.tar.xz">
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[80dbc4c8] | 8 | <!ENTITY v4l-download-ftp " ">
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[536660f] | 9 | <!ENTITY v4l-md5sum "6716de513a1fd2e1edb404a46a455855">
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[dfd3e91] | 10 | <!ENTITY v4l-size "1.2 MB">
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[9b515726] | 11 | <!ENTITY v4l-buildsize "34 MB">
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| 12 | <!ENTITY v4l-time "0.4 SBU (using parallelism=4)">
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[80dbc4c8] | 13 | ]>
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| 14 |
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| 15 | <sect1 id="v4l-utils" xreflabel="v4l-utils-&v4l-utils-version;">
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[2e14d58] | 16 | <?dbhtml filename="v4l-utils.html" ?>
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[80dbc4c8] | 17 |
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| 18 |
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| 19 | <title>v4l-utils-&v4l-utils-version;</title>
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| 20 |
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| 21 | <indexterm zone="v4l-utils">
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| 22 | <primary sortas="a-v4l-utils">v4l-utils</primary>
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| 23 | </indexterm>
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| 24 |
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| 25 | <sect2 role="package">
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| 26 | <title>Introduction to v4l-utils</title>
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| 27 |
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| 28 | <para>
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[94b42903] | 29 | <application>v4l-utils</application> provides a series of utilities for
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[3f3aad1] | 30 | media devices, allowing the ability to handle the proprietary formats
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| 31 | available from most webcams (libv4l), and providing tools to test V4L devices.
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[80dbc4c8] | 32 | </para>
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| 33 |
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[41a19c4] | 34 | &lfs122_checked;
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[80dbc4c8] | 35 |
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| 36 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 37 | <itemizedlist spacing="compact">
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| 38 | <listitem>
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| 39 | <para>
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| 40 | Download (HTTP): <ulink url="&v4l-download-http;"/>
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| 41 | </para>
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| 42 | </listitem>
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| 43 | <listitem>
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| 44 | <para>
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| 45 | Download (FTP): <ulink url="&v4l-download-ftp;"/>
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| 46 | </para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>
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| 50 | Download MD5 sum: &v4l-md5sum;
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| 51 | </para>
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| 52 | </listitem>
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| 53 | <listitem>
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| 54 | <para>
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| 55 | Download size: &v4l-size;
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| 56 | </para>
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| 57 | </listitem>
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| 58 | <listitem>
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| 59 | <para>
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| 60 | Estimated disk space required: &v4l-buildsize;
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| 61 | </para>
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| 62 | </listitem>
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| 63 | <listitem>
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| 64 | <para>
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| 65 | Estimated build time: &v4l-time;
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| 66 | </para>
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| 67 | </listitem>
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| 68 | </itemizedlist>
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[51ba03e] | 69 | <!--
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[973a31d] | 70 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 71 | <itemizedlist>
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| 72 | <listitem>
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| 73 | <para>
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| 74 | Required patch:
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[e3cdc02a] | 75 | <ulink url="&patch-root;/v4l-utils-&v4l-utils-version;-upstream_fixes-1.patch"/>
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[973a31d] | 76 | </para>
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| 77 | </listitem>
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| 78 | </itemizedlist>
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[51ba03e] | 79 | -->
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[80dbc4c8] | 80 | <bridgehead renderas="sect3">v4l-utils Dependencies</bridgehead>
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| 81 |
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| 82 | <bridgehead renderas="sect4">Recommended</bridgehead>
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[c6ea0bd] | 83 | <para role="recommended">
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[a3af18e] | 84 | <xref linkend="alsa-lib"/>,
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[4f1c8743] | 85 | <xref linkend="glu"/>, and
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| 86 | <xref linkend="libjpeg"/>
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[80dbc4c8] | 87 | </para>
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| 88 |
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| 89 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 90 | <para role="optional">
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[52b9d551] | 91 | <xref linkend="doxygen"/>,
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[9b515726] | 92 | <xref linkend="qt6"/> (for qv4l2 and qvidcap),
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[0387d9a] | 93 | <xref linkend="sdl2"/>,
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[52b9d551] | 94 | both <xref linkend="llvm"/> (with Clang and target BPF)
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| 95 | and <ulink url='https://github.com/libbpf/libbpf'>libbpf</ulink>
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[0387d9a] | 96 | (for infrared remote control decoders based on BPF), and
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| 97 | <ulink url="https://github.com/libsdl-org/SDL_image">SDL_image</ulink>
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[80dbc4c8] | 98 | </para>
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| 99 |
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| 100 | </sect2>
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| 101 |
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| 102 | <sect2 role="installation">
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| 103 | <title>Installation of v4l-utils</title>
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[e3cdc02a] | 104 |
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[c39ddc6] | 105 | <note>
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| 106 | <para>
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| 107 | If you've installed both LLVM and libbpf (not in BLFS), either
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| 108 | enable the BPF target (via
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[083d44c] | 109 | <option>-D LLVM_TARGETS_TO_BUILD=</option>) when building LLVM, or
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| 110 | disable the infrared remote control decoders based on BPF:
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[c39ddc6] | 111 | </para>
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| 112 |
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| 113 | <!-- not "nodump" because it's harmless for BLFS anyway -->
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[4f1c8743] | 114 | <screen><userinput>sed -i '/^ir_bpf_enabled/s/=.*/= false/' utils/keytable/meson.build</userinput></screen>
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[c39ddc6] | 115 | </note>
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| 116 |
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[80dbc4c8] | 117 | <para>
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| 118 | Install <application>v4l-utils</application> by running
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| 119 | the following commands:
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| 120 | </para>
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| 121 |
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[dfd3e91] | 122 | <screen><userinput>mkdir build &&
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| 123 | cd build &&
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| 124 |
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[9b515726] | 125 | meson setup .. \
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| 126 | --prefix=/usr \
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| 127 | --buildtype=release \
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[aff05ca9] | 128 | -D gconv=disabled \
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[9b515726] | 129 | -D doxygen-doc=disabled &&
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[dfd3e91] | 130 | ninja</userinput></screen>
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| 131 |
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[80dbc4c8] | 132 | <para>
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[48771ae] | 133 | This package does not come with a test suite.
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[80dbc4c8] | 134 | </para>
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| 135 |
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| 136 | <para>
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| 137 | Now, as the <systemitem class="username">root</systemitem> user:
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| 138 | </para>
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| 139 |
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[372c4ce3] | 140 | <screen role="root"><userinput>ninja install</userinput></screen>
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[dfd3e91] | 141 |
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| 142 | <para>
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| 143 | If you also wish to install the contrib programs, add:
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| 144 | </para>
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| 145 |
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[372c4ce3] | 146 | <screen role="root"><userinput>for prog in v4l2gl v4l2grab
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[dfd3e91] | 147 | do
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[372c4ce3] | 148 | cp -v contrib/test/$prog /usr/bin
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[dfd3e91] | 149 | done</userinput></screen>
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| 150 |
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[80dbc4c8] | 151 | </sect2>
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[aff05ca9] | 152 |
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[dfd3e91] | 153 | <sect2 role="commands">
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| 154 | <title>Command Explanations</title>
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| 155 |
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[aff05ca9] | 156 | <!-- Please do NOT touch this unless you've tried a DESTDIR installation
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| 157 | and you really understand what will be going on:
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| 158 |
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| 159 | Without this option the package will overwrite
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| 160 | /usr/lib/gconv/gconv-modules which is a part of the **Glibc**
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| 161 | installation and break iconv (both the command iconv(1) and the
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| 162 | Glibc function iconv(3)). Then some BLFS packages will FTBFS or
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| 163 | fail a dozen of tests etc.
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| 164 |
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| 165 | Already reported as https://lore.kernel.org/linux-media/3ffb1568a9ff6c0b6f5424de3a0fafb24e7b3ac0.camel@xry111.site/.
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| 166 |
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| 167 | Debian and Gentoo also have -D gconv=disabled. Fedora manually
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| 168 | moves the gconv-modules file in a DESTDIR installation. IMO it's
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| 169 | completely stupid to have an installation conflicting with Glibc in
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| 170 | the default configuration, but they just completely ignore my
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| 171 | report and rely on the distro maintainers to resolve the issue,
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| 172 | even without mentioning the conflict in README.md, nor INSTALL.md.
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| 173 | This is the worst upstream behavior I've ever seen. -->
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[dfd3e91] | 174 | <para>
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[4ce7f473] | 175 | <parameter>-D gconv=disabled</parameter>: This switch disables
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[dfd3e91] | 176 | the erroneous installation of gconv-modules that would break glibc.
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| 177 | </para>
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| 178 |
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| 179 | </sect2>
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| 180 |
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[80dbc4c8] | 181 | <sect2 role="content">
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| 182 | <title>Contents</title>
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| 183 |
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| 184 | <segmentedlist>
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| 185 | <segtitle>Installed Programs</segtitle>
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| 186 | <segtitle>Installed Library</segtitle>
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| 187 | <segtitle>Installed Directories</segtitle>
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| 188 |
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| 189 | <seglistitem>
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| 190 | <seg>
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[91982e2] | 191 | cec-compliance,
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| 192 | cec-ctl,
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| 193 | cec-follower,
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[e5e7a1d] | 194 | cx18-ctl,
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[80dbc4c8] | 195 | decode_tm6000,
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| 196 | dvb-fe-tool,
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| 197 | dvb-format-convert,
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[91982e2] | 198 | dvbv5-daemon,
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[80dbc4c8] | 199 | dvbv5-scan,
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| 200 | dvbv5-zap,
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[91982e2] | 201 | ir-ctl,
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[80dbc4c8] | 202 | ir-keytable,
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| 203 | ivtv-ctl,
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| 204 | media-ctl,
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| 205 | qv4l2,
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[e3cdc02a] | 206 | qvidcap,
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[80dbc4c8] | 207 | rds-ctl,
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| 208 | v4l2-compliance,
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| 209 | v4l2-ctl,
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[372c4ce3] | 210 | v4l2-dbg,
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| 211 | v4l2gl,
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| 212 | v4l2grab, and
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[80dbc4c8] | 213 | v4l2-sysfs-path
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| 214 | </seg>
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| 215 | <seg>
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| 216 | libdvbv5.so,
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| 217 | libv4l1.so,
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| 218 | libv4l2.so,
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| 219 | libv4l2rds.so,
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| 220 | libv4lconvert.so,
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| 221 | v4l1compat.so, and
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| 222 | v4l2convert.so
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| 223 | </seg>
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| 224 | <seg>
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[0fe2f5b] | 225 | /etc/rc_keymaps,
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| 226 | /lib/udev/rc_keymaps,
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[8538618] | 227 | /usr/include/libdvbv5, and
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| 228 | /usr/lib/libv4l
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[80dbc4c8] | 229 | </seg>
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| 230 | </seglistitem>
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| 231 | </segmentedlist>
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| 232 |
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| 233 | <variablelist>
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| 234 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 235 | <?dbfo list-presentation="list"?>
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| 236 | <?dbhtml list-presentation="table"?>
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| 237 |
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[e5e7a1d] | 238 | <varlistentry id="cx18-ctl">
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| 239 | <term><command>cx18-ctl</command></term>
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| 240 | <listitem>
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| 241 | <para>
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[4c24eb0a] | 242 | is a tool to handle cx18 based devices
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[e5e7a1d] | 243 | </para>
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| 244 | <indexterm zone="v4l-utils cx18-ctl">
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| 245 | <primary sortas="b-cx18-ctl">cx18-ctl</primary>
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| 246 | </indexterm>
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| 247 | </listitem>
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| 248 | </varlistentry>
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| 249 |
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| 250 | <varlistentry id="decode_tm6000">
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| 251 | <term><command>decode_tm6000</command></term>
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| 252 | <listitem>
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| 253 | <para>
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[4c24eb0a] | 254 | decodes multiplexed formats from TM5600/TM6000 USB devices
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[e5e7a1d] | 255 | </para>
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| 256 | <indexterm zone="v4l-utils decode_tm6000">
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| 257 | <primary sortas="b-decode_tm6000">decode_tm6000</primary>
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| 258 | </indexterm>
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| 259 | </listitem>
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| 260 | </varlistentry>
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| 261 |
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[80dbc4c8] | 262 | <varlistentry id="dvb-fe-tool">
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| 263 | <term><command>dvb-fe-tool</command></term>
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| 264 | <listitem>
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| 265 | <para>
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[4c24eb0a] | 266 | is a command line tool for digital TV services
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[80dbc4c8] | 267 | </para>
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| 268 | <indexterm zone="v4l-utils dvb-fe-tool">
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| 269 | <primary sortas="b-dvb-fe-tool">dvb-fe-tool</primary>
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| 270 | </indexterm>
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| 271 | </listitem>
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| 272 | </varlistentry>
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| 273 |
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| 274 | <varlistentry id="dvb-format-convert">
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| 275 | <term><command>dvb-format-convert</command></term>
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| 276 | <listitem>
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| 277 | <para>
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| 278 | is a tool meant to convert among different file formats. It is
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[4c24eb0a] | 279 | compliant with version 5 of the DVB API
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[80dbc4c8] | 280 | </para>
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| 281 | <indexterm zone="v4l-utils dvb-format-convert">
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| 282 | <primary sortas="b-dvb-format-convert">dvb-format-convert</primary>
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| 283 | </indexterm>
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| 284 | </listitem>
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| 285 | </varlistentry>
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| 286 |
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| 287 | <varlistentry id="dvbv5-scan">
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| 288 | <term><command>dvbv5-scan</command></term>
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| 289 | <listitem>
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| 290 | <para>
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[4cc74e03] | 291 | is a command line frequency scanning tool for digital TV
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[4c24eb0a] | 292 | services that are compliant with version 5 of the DVB API
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[80dbc4c8] | 293 | </para>
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| 294 | <indexterm zone="v4l-utils dvbv5-scan">
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| 295 | <primary sortas="b-dvbv5-scan">dvbv5-scan</primary>
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| 296 | </indexterm>
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| 297 | </listitem>
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| 298 | </varlistentry>
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| 299 |
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| 300 | <varlistentry id="dvbv5-zap">
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| 301 | <term><command>dvbv5-zap</command></term>
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| 302 | <listitem>
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| 303 | <para>
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[f3429309] | 304 | is a command line tuning tool for digital TV services
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[4c24eb0a] | 305 | that is compliant with version 5 of the DVB API
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[80dbc4c8] | 306 | </para>
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| 307 | <indexterm zone="v4l-utils dvbv5-zap">
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| 308 | <primary sortas="b-dvbv5-zap">dvbv5-zap</primary>
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| 309 | </indexterm>
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| 310 | </listitem>
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| 311 | </varlistentry>
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| 312 |
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| 313 | <varlistentry id="ir-keytable">
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| 314 | <term><command>ir-keytable</command></term>
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| 315 | <listitem>
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| 316 | <para>
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[f3429309] | 317 | is a tool that lists the Remote Controller devices, allows one
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| 318 | to get/set IR keycode/scancode tables, test events generated by
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[4c24eb0a] | 319 | IR, and to adjust other Remote Controller options
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[80dbc4c8] | 320 | </para>
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| 321 | <indexterm zone="v4l-utils ir-keytable">
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| 322 | <primary sortas="b-ir-keytable">ir-keytable</primary>
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| 323 | </indexterm>
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| 324 | </listitem>
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| 325 | </varlistentry>
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| 326 |
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[e5e7a1d] | 327 | <varlistentry id="ivtv-ctl">
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| 328 | <term><command>ivtv-ctl</command></term>
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| 329 | <listitem>
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| 330 | <para>
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| 331 | is a utility that can control many card settings, like changing
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| 332 | the inputs from tuner to svideo or composite, setting video
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[4c24eb0a] | 333 | resolution or changing video mode (PAL, SECAM, NTSC)
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[e5e7a1d] | 334 | </para>
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| 335 | <indexterm zone="v4l-utils ivtv-ctl">
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| 336 | <primary sortas="b-ivtv-ctl">ivtv-ctl</primary>
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| 337 | </indexterm>
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| 338 | </listitem>
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| 339 | </varlistentry>
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| 340 |
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| 341 | <varlistentry id="media-ctl">
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| 342 | <term><command>media-ctl</command></term>
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| 343 | <listitem>
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| 344 | <para>
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[4c24eb0a] | 345 | is a utility used to configure V4L2 devices
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[e5e7a1d] | 346 | </para>
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| 347 | <indexterm zone="v4l-utils media-ctl">
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| 348 | <primary sortas="b-media-ctl">media-ctl</primary>
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| 349 | </indexterm>
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| 350 | </listitem>
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| 351 | </varlistentry>
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| 352 |
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[80dbc4c8] | 353 | <varlistentry id="qv4l2">
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| 354 | <term><command>qv4l2</command></term>
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| 355 | <listitem>
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| 356 | <para>
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[4c24eb0a] | 357 | is used to test video4linux capture devices
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[80dbc4c8] | 358 | </para>
|
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| 359 | <indexterm zone="v4l-utils qv4l2">
|
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| 360 | <primary sortas="b-qv4l2">qv4l2</primary>
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| 361 | </indexterm>
|
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| 362 | </listitem>
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| 363 | </varlistentry>
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| 364 |
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[e3cdc02a] | 365 | <varlistentry id="qvidcap">
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| 366 | <term><command>qvidcap</command></term>
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| 367 | <listitem>
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| 368 | <para>
|
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| 369 | is used to capture video from a V4L2 device
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| 370 | </para>
|
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| 371 | <indexterm zone="v4l-utils qvidcap">
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| 372 | <primary sortas="b-qvidcap">qvidcap</primary>
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| 373 | </indexterm>
|
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| 374 | </listitem>
|
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| 375 | </varlistentry>
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| 376 |
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[e5e7a1d] | 377 | <varlistentry id="rds-ctl">
|
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| 378 | <term><command>rds-ctl</command></term>
|
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| 379 | <listitem>
|
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| 380 | <para>
|
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| 381 | is a utility for decoding raw RDS data from V4L2 Radio devices
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[4c24eb0a] | 382 | and offers simple ways to access the received RDS information
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[e5e7a1d] | 383 | </para>
|
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| 384 | <indexterm zone="v4l-utils rds-ctl">
|
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| 385 | <primary sortas="b-rds-ctl">rds-ctl</primary>
|
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| 386 | </indexterm>
|
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| 387 | </listitem>
|
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| 388 | </varlistentry>
|
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| 389 |
|
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| 390 | <varlistentry id="v4l2-compliance">
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| 391 | <term><command>v4l2-compliance</command></term>
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| 392 | <listitem>
|
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| 393 | <para>
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[4c24eb0a] | 394 | is a compliance test tool
|
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[e5e7a1d] | 395 | </para>
|
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| 396 | <indexterm zone="v4l-utils v4l2-compliance">
|
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| 397 | <primary sortas="b-v4l2-compliance">v4l2-compliance</primary>
|
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| 398 | </indexterm>
|
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| 399 | </listitem>
|
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| 400 | </varlistentry>
|
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| 401 |
|
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| 402 | <varlistentry id="v4l2-ctl">
|
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| 403 | <term><command>v4l2-ctl</command></term>
|
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| 404 | <listitem>
|
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| 405 | <para>
|
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[4c24eb0a] | 406 | is a tool to control v4l2 controls from the cmdline
|
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[e5e7a1d] | 407 | </para>
|
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| 408 | <indexterm zone="v4l-utils v4l2-ctl">
|
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| 409 | <primary sortas="b-v4l2-ctl">v4l2-ctl</primary>
|
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| 410 | </indexterm>
|
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| 411 | </listitem>
|
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| 412 | </varlistentry>
|
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| 413 |
|
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| 414 | <varlistentry id="v4l2-dbg">
|
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| 415 | <term><command>v4l2-dbg</command></term>
|
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| 416 | <listitem>
|
---|
| 417 | <para>
|
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[4c24eb0a] | 418 | is a tool to directly get and set registers of v4l2 devices
|
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[e5e7a1d] | 419 | </para>
|
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| 420 | <indexterm zone="v4l-utils v4l2-dbg">
|
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| 421 | <primary sortas="b-v4l2-dbg">v4l2-dbg</primary>
|
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| 422 | </indexterm>
|
---|
| 423 | </listitem>
|
---|
| 424 | </varlistentry>
|
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| 425 |
|
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[372c4ce3] | 426 | <varlistentry id="v4l2gl">
|
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| 427 | <term><command>v4l2gl</command></term>
|
---|
| 428 | <listitem>
|
---|
| 429 | <para>
|
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| 430 | captures images using libv4l and stores them as PPM files
|
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| 431 | </para>
|
---|
| 432 | <indexterm zone="v4l-utils v4l2gl">
|
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| 433 | <primary sortas="b-v4l2gl">v4l2gl</primary>
|
---|
| 434 | </indexterm>
|
---|
| 435 | </listitem>
|
---|
| 436 | </varlistentry>
|
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| 437 |
|
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| 438 | <varlistentry id="v4l2grab">
|
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| 439 | <term><command>v4l2grab</command></term>
|
---|
| 440 | <listitem>
|
---|
| 441 | <para>
|
---|
| 442 | captures images using libv4l and stores them as PPM files, while
|
---|
[3f3aad1] | 443 | also allowing for additional options such as setting the amount of
|
---|
[372c4ce3] | 444 | frames captured and saving the file as a RAW file
|
---|
| 445 | </para>
|
---|
| 446 | <indexterm zone="v4l-utils v4l2grab">
|
---|
| 447 | <primary sortas="b-v4l2grab">v4l2grab</primary>
|
---|
| 448 | </indexterm>
|
---|
| 449 | </listitem>
|
---|
| 450 | </varlistentry>
|
---|
| 451 |
|
---|
[e5e7a1d] | 452 | <varlistentry id="v4l2-sysfs-path">
|
---|
| 453 | <term><command>v4l2-sysfs-path</command></term>
|
---|
| 454 | <listitem>
|
---|
| 455 | <para>
|
---|
| 456 | checks the media devices installed on a machine and the
|
---|
[4c24eb0a] | 457 | corresponding device nodes
|
---|
[e5e7a1d] | 458 | </para>
|
---|
| 459 | <indexterm zone="v4l-utils v4l2-sysfs-path">
|
---|
| 460 | <primary sortas="b-v4l2-sysfs-path">v4l2-sysfs-path</primary>
|
---|
| 461 | </indexterm>
|
---|
| 462 | </listitem>
|
---|
| 463 | </varlistentry>
|
---|
| 464 |
|
---|
[80dbc4c8] | 465 | </variablelist>
|
---|
| 466 |
|
---|
| 467 | </sect2>
|
---|
| 468 |
|
---|
| 469 | </sect1>
|
---|