source: multimedia/libdriv/gst10-libav.xml@ ece8654e

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY gst10-libav-download-http "&gstreamer-dl;/gst-libav/gst-libav-&gst10-libav-version;.tar.xz">
  <!ENTITY gst10-libav-download-ftp  " ">
  <!ENTITY gst10-libav-md5sum        "a5d4816849a6fe3b84c1aa520da9e8b8">
  <!ENTITY gst10-libav-size          "284 KB">
  <!ENTITY gst10-libav-buildsize     "14 MB (with tests)">
  <!ENTITY gst10-libav-time          "less than 0.1 SBU (Using parallelism=4; with tests)">
]>

<sect1 id="gst10-libav" xreflabel="gst-libav-&gst10-libav-version;">
  <?dbhtml filename="gst10-libav.html"?>


  <title>gst-libav-&gst10-libav-version;</title>

  <indexterm zone="gst10-libav">
    <primary sortas="a-gst-libav">gst-libav</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to GStreamer Libav</title>

    <para>
      The <application>GStreamer Libav</application> package contains
      <application>GStreamer</application> plugins for
      <application>Libav</application> (a fork of
      <application>FFmpeg</application>).
    </para>

    &lfs112_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&gst10-libav-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&gst10-libav-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &gst10-libav-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &gst10-libav-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &gst10-libav-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &gst10-libav-time;
        </para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">GStreamer Libav Dependencies</bridgehead>

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="ffmpeg"/> and
      <xref linkend="gst10-plugins-base"/>
    </para>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <!-- With 1.14.x and before, an internal copy of FFMPEG was used.
      This is no longer the case, so it is now required. -->
      <xref linkend="yasm"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <ulink url="https://pypi.org/project/hotdoc/">hotdoc</ulink><!-- and
      no trace of this in tarball (only in ChangeLog for versions 0.x)
      <ulink url="http://gstreamer.freedesktop.org/src/orc/">Orc</ulink>-->
    </para>

    <para condition="html" role="usernotes">
      User Notes: <ulink url="&blfs-wiki;/gst10-libav"/>
    </para>
  </sect2>

  <sect2 role="installation">
    <title>Installation of GStreamer Libav</title>
    <!-- No trace of this in tarball
    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
      href="../../xincludes/gst10-objc-error.xml"/>
    -->
    <para>
      Install <application>GStreamer Libav</application> by running the following
      commands:
    </para>

<screen><userinput>mkdir build &amp;&amp;
cd    build &amp;&amp;

meson  --prefix=/usr       \
       --buildtype=release \
       -Dpackage-origin=https://www.linuxfromscratch.org/blfs/view/&blfs-version;/ \
       -Dpackage-name="GStreamer &gst10-libav-version; BLFS" &amp;&amp;
ninja</userinput></screen>


    <para>
      To test the results, issue: <command>ninja test</command>. One test,
      <filename>elements_avaudenc</filename>, is known to fail with ffmpeg-5.1.
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>ninja install</userinput></screen>
  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
      href="../../xincludes/meson-buildtype-release.xml"/>
  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Library</segtitle>
      <segtitle>Installed Directory</segtitle>

      <seglistitem>
        <seg>
          None
        </seg>
        <seg>
          libgstlibav.so in /usr/lib/gstreamer-1.0 directory
        </seg>
        <seg>
          None
        </seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

</sect1>