[acea88c] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 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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| 7 | <!ENTITY libavif-download-http "https://github.com/AOMediaCodec/libavif/archive/v&libavif-version;/libavif-&libavif-version;.tar.gz">
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| 8 | <!ENTITY libavif-download-ftp " ">
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[3c89223b] | 9 | <!ENTITY libavif-md5sum "d7b2a7da1fb652b40936b09ffb006b24">
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| 10 | <!ENTITY libavif-size "10 MB">
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| 11 | <!ENTITY libavif-buildsize "16 MB">
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[acea88c] | 12 | <!ENTITY libavif-time "less than 0.1 SBU">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="libavif" xreflabel="libavif-&libavif-version;">
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| 16 | <?dbhtml filename="libavif.html"?>
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| 17 |
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| 18 | <title>libavif-&libavif-version;</title>
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| 19 |
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| 20 | <indexterm zone="libavif">
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| 21 | <primary sortas="a-libavif">libavif</primary>
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| 22 | </indexterm>
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| 23 |
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| 24 | <sect2 role="package">
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| 25 | <title>Introduction to libavif</title>
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| 26 |
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| 27 | <para>
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| 28 | The <application>libavif</application> package contains a library used
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| 29 | for encoding and decoding AVIF files.
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| 30 | </para>
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| 31 |
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[fc561d1] | 32 | &lfs120_checked;
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[acea88c] | 33 |
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| 34 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 35 | <itemizedlist spacing="compact">
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| 36 | <listitem>
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| 37 | <para>
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| 38 | Download (HTTP): <ulink url="&libavif-download-http;"/>
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| 39 | </para>
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| 40 | </listitem>
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| 41 | <listitem>
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| 42 | <para>
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| 43 | Download (FTP): <ulink url="&libavif-download-ftp;"/>
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| 44 | </para>
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| 45 | </listitem>
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| 46 | <listitem>
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| 47 | <para>
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| 48 | Download MD5 sum: &libavif-md5sum;
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| 49 | </para>
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| 50 | </listitem>
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| 51 | <listitem>
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| 52 | <para>
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| 53 | Download size: &libavif-size;
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| 54 | </para>
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| 55 | </listitem>
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| 56 | <listitem>
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| 57 | <para>
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| 58 | Estimated disk space required: &libavif-buildsize;
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| 59 | </para>
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| 60 | </listitem>
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| 61 | <listitem>
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| 62 | <para>
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| 63 | Estimated build time: &libavif-time;
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| 64 | </para>
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| 65 | </listitem>
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| 66 | </itemizedlist>
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| 67 |
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| 68 | <bridgehead renderas="sect3">libavif Dependencies</bridgehead>
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| 69 |
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| 70 | <bridgehead renderas="sect4">Required</bridgehead>
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| 71 | <para role="required">
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| 72 | <xref linkend="libaom"/>
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| 73 | </para>
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| 74 |
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| 75 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 76 | <para role="recommended">
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| 77 | <xref linkend="gdk-pixbuf"/>
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| 78 | </para>
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| 79 |
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| 80 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 81 | <para role="optional">
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| 82 | <ulink url="https://github.com/google/googletest">gtest</ulink>,
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| 83 | <ulink url="https://code.videolan.org/videolan/dav1d">libdav1d</ulink>,
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| 84 | <ulink url="https://chromium.googlesource.com/libyuv/libyuv/">libyuv</ulink>,
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| 85 | <ulink url="https://github.com/xiph/rav1e">rav1e</ulink>, and
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| 86 | <ulink url="https://gitlab.com/AOMediaCodec/SVT-AV1">svt-av1</ulink>
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| 87 | </para>
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| 88 |
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| 89 | </sect2>
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| 90 |
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| 91 | <sect2 role="installation">
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| 92 | <title>Installation of libavif</title>
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| 93 |
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| 94 | <para>
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| 95 | Install <application>libavif</application> by running the following
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| 96 | commands:
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| 97 | </para>
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| 98 |
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[820262d8] | 99 | <screen><userinput>mkdir build &&
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| 100 | cd build &&
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[acea88c] | 101 |
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| 102 | cmake -DCMAKE_INSTALL_PREFIX=/usr \
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| 103 | -DCMAKE_BUILD_TYPE=Release \
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| 104 | -DAVIF_CODEC_AOM=ON \
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| 105 | -DAVIF_BUILD_GDK_PIXBUF=ON \
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| 106 | -G Ninja .. &&
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| 107 | ninja</userinput></screen>
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| 108 |
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| 109 | <para>
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| 110 | This package does come with a test suite, but it requires
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| 111 | <ulink url="https://github.com/google/googletest">gtest</ulink>, which
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| 112 | is not part of BLFS.
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| 113 | </para>
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| 114 |
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| 115 | <para>
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| 116 | Now, as the <systemitem class="username">root</systemitem> user:
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| 117 | </para>
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| 118 |
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[820262d8] | 119 | <screen role="root"><userinput>ninja install</userinput></screen>
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| 120 |
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| 121 | <para>
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| 122 | The AV1 format needs to be added to the loaders cache. As the
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| 123 | &root; user:
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| 124 | </para>
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| 125 |
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| 126 | <screen role="root"><userinput>gdk-pixbuf-query-loaders --update-cache</userinput></screen>
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[acea88c] | 127 |
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| 128 | </sect2>
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[e440af5] | 129 |
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[acea88c] | 130 | <sect2 role="commands">
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| 131 | <title>Command Explanations</title>
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| 132 |
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| 133 | <para>
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| 134 | <parameter>-DAVIF_CODEC_AOM=ON</parameter>: This switch enables using
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| 135 | the AOM codec. This package is useless without at least one codec
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| 136 | built in.
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| 137 | </para>
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| 138 |
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| 139 | <para>
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| 140 | <parameter>-DAVIF_BUILD_GDK_PIXBUF=ON</parameter>: This switch builds
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| 141 | the AVIF loader for applications which use gdk-pixbuf. Remove it if you
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| 142 | have not installed <xref role="nodep" linkend="gdk-pixbuf"/>.
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| 143 | </para>
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[e440af5] | 144 |
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[acea88c] | 145 | <para>
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| 146 | <option>-DAVIF_CODEC_DAV1D=ON</option>: Use this switch if you have
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| 147 | installed <ulink url="https://code.videolan.org/videolan/dav1d">libdav1d</ulink>
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| 148 | and wish to use it as a codec.
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| 149 | </para>
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| 150 |
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| 151 | <para>
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| 152 | <option>-DAVIF_CODEC_RAV1E=ON</option>: Use this switch if you have
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| 153 | installed <ulink url="https://github.com/xiph/rav1e">rav1e</ulink> and
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| 154 | wish to use it as a codec.
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| 155 | </para>
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[e440af5] | 156 |
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[acea88c] | 157 | <para>
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| 158 | <option>-DAVIF_CODEC_SVT=ON</option>: Use this switch if you have
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| 159 | installed <ulink url="https://gitlab.com/AOMediaCodec/SVT-AV1">svt-av1</ulink>
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| 160 | and wish to use it as a codec.
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| 161 | </para>
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| 162 |
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| 163 | </sect2>
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| 164 |
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| 165 | <sect2 role="content">
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| 166 | <title>Contents</title>
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| 167 |
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| 168 | <segmentedlist>
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| 169 | <segtitle>Installed Programs</segtitle>
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| 170 | <segtitle>Installed Libraries</segtitle>
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| 171 | <segtitle>Installed Directories</segtitle>
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| 172 |
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| 173 | <seglistitem>
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| 174 | <seg>
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| 175 | None
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| 176 | </seg>
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| 177 | <seg>
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| 178 | libavif.so and
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| 179 | libpixbbufloader-avif.so (in /usr/lib/gdk-pixbuf-2.0/2.10.0/loaders)
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| 180 | </seg>
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| 181 | <seg>
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| 182 | /usr/include/avif
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| 183 | </seg>
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| 184 | </seglistitem>
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| 185 | </segmentedlist>
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| 186 |
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| 187 | <variablelist>
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| 188 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 189 | <?dbfo list-presentation="list"?>
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| 190 | <?dbhtml list-presentation="table"?>
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| 191 |
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| 192 | <varlistentry id="libavif-lib">
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| 193 | <term><filename class="libraryfile">libavif.so</filename></term>
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| 194 | <listitem>
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| 195 | <para>
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| 196 | contains functions that provide a portable C implementation of the
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| 197 | AV1 Image Format
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| 198 | </para>
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| 199 | <indexterm zone="libavif-lib libavif">
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| 200 | <primary sortas="c-libavif">libavif.so</primary>
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| 201 | </indexterm>
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| 202 | </listitem>
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| 203 | </varlistentry>
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[e440af5] | 204 |
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[acea88c] | 205 | <varlistentry id="libpixbufloader-avif">
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| 206 | <term><filename class="libraryfile">libpixbufloader-avif.so</filename></term>
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| 207 | <listitem>
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| 208 | <para>
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| 209 | allows applications which use gdk-pixbuf to read AVIF images
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| 210 | </para>
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| 211 | <indexterm zone="libavif libpixbufloader-avif">
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| 212 | <primary sortas="c-libpixbufloader-avif">libpixbufloader-avif.so</primary>
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| 213 | </indexterm>
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| 214 | </listitem>
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| 215 | </varlistentry>
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| 216 | </variablelist>
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| 217 | </sect2>
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| 218 | </sect1>
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