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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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69 lines
1.8 KiB
XML
69 lines
1.8 KiB
XML
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<?xml version="1.0"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % version-entities SYSTEM "version.entities">
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%version-entities;
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<!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'">
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]>
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<refentry id="gstreamer-vaapi-running">
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<refmeta>
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<refentrytitle>Running GStreamer VAAPI Applications</refentrytitle>
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</refmeta>
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<refnamediv>
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<refname>Running GStreamer VAAPI Applications</refname>
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<refpurpose>
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How to run GStreamer application with VAAPI elements.
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</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Running GStreamer VAAPI Applications</title>
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<refsect2>
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<title>Environment variables</title>
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<para>
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GStreamer-VAAPI inspects a few of environment variables to define it usage.
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</para>
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<formalpara id="GST_VAAPI_ALL_DRIVERS">
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<title><envar>GST_VAAPI_ALL_DRIVERS</envar></title>
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<para>
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This environment variable can be set, independently of its value, to disable
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the drivers white list. By default only intel and mesa va drivers are loaded
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if they are available. The rest are ignored. With this environment variable
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defined, all the available va drivers are loaded, even if they are deprecated.
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</para>
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</formalpara>
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<formalpara id="LIBVA_DRIVER_NAME">
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<title><envar>LIBVA_DRIVER_NAME</envar></title>
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<para>
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This environment variable can be set with the drivers name to load. For
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example, intel's driver is <userinput>i915</userinput>, meanwhile mesa is
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<userinput>gallium</userinput>.
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</para>
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</formalpara>
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<formalpara id="LIBVA_DRIVERS_PATH">
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<title><envar>LIBVA_DRIVERS_PATH</envar></title>
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<para>
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This environment variable can be set to a colon-separated list of paths (or a
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semicolon-separated list on Windows). libva will scan these paths for va
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drivers.
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</para>
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</formalpara>
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</refsect2>
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</refsect1>
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</refentry>
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