1 | <?xml version="1.0" encoding="UTF-8"?>
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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 x265-download-http "https://bitbucket.org/multicoreware/x265_git/downloads/x265_&x265-version;.tar.gz">
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8 | <!ENTITY x265-download-ftp " ">
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9 | <!ENTITY x265-md5sum "99997ecc8ee4d3575ba7715c759ad3bb">
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10 | <!ENTITY x265-size "1.6 MB">
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11 | <!ENTITY x265-buildsize "45 MB">
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12 | <!ENTITY x265-time "0.5 SBU (using parallelism=4)">
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13 | ]>
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14 |
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15 | <sect1 id="x265" xreflabel="x265-&x265-version;">
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16 | <?dbhtml filename="x265.html"?>
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17 |
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18 |
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19 | <title>x265-&x265-version;</title>
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20 |
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21 | <indexterm zone="x265">
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22 | <primary sortas="a-x265">x265</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 x265</title>
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27 |
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28 | <para>
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29 | <application>x265</application> package provides a library for encoding
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30 | video streams into the H.265/HEVC format.
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31 | </para>
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32 |
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33 | &lfs122_checked;
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34 |
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35 | <bridgehead renderas="sect3">Package Information</bridgehead>
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36 | <itemizedlist spacing="compact">
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37 | <listitem>
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38 | <para>
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39 | Download (HTTP): <ulink url="&x265-download-http;"/>
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40 | </para>
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41 | </listitem>
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42 | <listitem>
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43 | <para>
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44 | Download (FTP): <ulink url="&x265-download-ftp;"/>
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45 | </para>
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46 | </listitem>
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47 | <listitem>
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48 | <para>
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49 | Download MD5 sum: &x265-md5sum;
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50 | </para>
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51 | </listitem>
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52 | <listitem>
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53 | <para>
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54 | Download size: &x265-size;
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55 | </para>
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56 | </listitem>
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57 | <listitem>
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58 | <para>
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59 | Estimated disk space required: &x265-buildsize;
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60 | </para>
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61 | </listitem>
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62 | <listitem>
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63 | <para>
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64 | Estimated build time: &x265-time;
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65 | </para>
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66 | </listitem>
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67 | </itemizedlist>
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68 |
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69 | <bridgehead renderas="sect3">x265 Dependencies</bridgehead>
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70 |
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71 | <bridgehead renderas="sect4">Required</bridgehead>
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72 | <para role="required">
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73 | <xref linkend="cmake"/>
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74 | </para>
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75 |
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76 | <bridgehead renderas="sect4">Recommended</bridgehead>
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77 | <para role="recommended">
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78 | <xref linkend="nasm"/>
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79 | </para>
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80 |
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81 | <bridgehead renderas="sect4">Optional</bridgehead>
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82 | <para role="optional">
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83 | <ulink url="https://github.com/numactl/numactl">numactl</ulink>
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84 | </para>
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85 |
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86 | </sect2>
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87 |
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88 | <sect2 role="installation">
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89 | <title>Installation of x265</title>
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90 |
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91 | <para>
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92 | Install <application>x265</application> by running the following
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93 | commands:
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94 | </para>
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95 |
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96 | <!-- the default build is Release, no need to specify that -->
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97 | <screen><userinput>mkdir bld &&
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98 | cd bld &&
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99 |
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100 | cmake -D CMAKE_INSTALL_PREFIX=/usr \
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101 | -D GIT_ARCHETYPE=1 \
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102 | -W no-dev ../source &&
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103 | make</userinput></screen>
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104 |
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105 | <para>
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106 | This package does not come with a test suite.
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107 | </para>
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108 |
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109 | <!-- To editors: hard coded versions "209", "212", and "3.6" are not a
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110 | bug. This <important> block should be removed when we update x265
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111 | to 3.7 (or 4.0 or whatever new version). The problem only happens
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112 | when we downgrade libx265.so, upgrading is OK (as long as following
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113 | the LFS package management page). -->
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114 | <important>
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115 | <para>
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116 | If downgrading from the bleeding-edge x265-20240812 (it had been
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117 | mistakenly used in the BLFS development book for several days),
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118 | remove the shared library from x265-20240812 as the &root; user:
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119 | </para>
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120 |
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121 | <screen role='root'><userinput>rm -fv /usr/lib/libx265.so.212</userinput></screen>
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122 |
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123 | <para>
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124 | This is for preventing <command>ldconfig</command> from recreating
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125 | the symlink <filename>libx265.so</filename> with the target
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126 | <filename>/usr/lib/libx265.so.212</filename> which seems to be
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127 | <quote>a newer version</quote> of <filename>libx265.so.209</filename>
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128 | from x265-3.6.
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129 | </para>
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130 | </important>
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131 |
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132 | <para>
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133 | To install the package, first remove any old library versions.
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134 | After installation, remove a static library.
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135 | As the &root; user:
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136 | </para>
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137 |
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138 | <screen role="root"><userinput>make install &&
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139 | rm -vf /usr/lib/libx265.a</userinput></screen>
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140 |
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141 | </sect2>
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142 |
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143 | <sect2 role="commands">
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144 | <title>Command Explanations</title>
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145 |
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146 | <para>
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147 | <parameter>-W no-dev</parameter>: This switch is used to suppress warnings
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148 | intended for the package developers.
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149 | </para>
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150 |
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151 | <para>
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152 | <parameter>-D GIT_ARCHETYPE=1</parameter>: This switch is needed
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153 | because the build system will not generate a pkg-config file or install
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154 | a shared library unless <xref linkend="git"/> is installed. Git isn't
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155 | required for anything else in this package, so this switch is used to
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156 | work around it for users who do not want to install Git as a build
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157 | dependency.
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158 | </para>
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159 |
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160 | <para>
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161 | <command>rm -vf /usr/lib/libx265.a</command>: BLFS does not recommend
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162 | using static libraries.
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163 | </para>
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164 | </sect2>
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165 |
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166 | <sect2 role="content">
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167 | <title>Contents</title>
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168 |
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169 | <segmentedlist>
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170 | <segtitle>Installed Program</segtitle>
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171 | <segtitle>Installed Library</segtitle>
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172 | <segtitle>Installed Directories</segtitle>
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173 |
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174 | <seglistitem>
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175 | <seg>
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176 | x265
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177 | </seg>
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178 | <seg>
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179 | libx265.so
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180 | </seg>
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181 | <seg>
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182 | None
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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="libx265">
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193 | <term><filename class="libraryfile">libx265.so</filename></term>
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194 | <listitem>
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195 | <para>
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196 | provides the functions used to encode video streams into the
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197 | H.265/HEVC format
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198 | </para>
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199 | <indexterm zone="x265 libx265">
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200 | <primary sortas="c-libx265">libx265.so</primary>
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201 | </indexterm>
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202 | </listitem>
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203 | </varlistentry>
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204 |
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205 | </variablelist>
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206 |
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207 | </sect2>
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208 |
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209 | </sect1>
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