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<!ENTITY legal SYSTEM "legal.xml">
<!ENTITY appversion "2.2.2">
<!ENTITY manrevision "2.5">
<!ENTITY date "June 2010">
<!ENTITY app "GStreamer Properties">
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    <title>GStreamer Properties Manual V2.5</title>       

    <copyright>
      <year>2003</year> 
      <holder>Christian Fredrik Kalager Schaller</holder> 
    </copyright><copyright><year>2009.</year><holder>TeliuTe (teliute@163.com)</holder></copyright> 

    <abstract role="description">
      <para>GStreamer 属性允许您配置硬件和多媒体的有关参数</para>
    </abstract>

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   <year>2003</year>
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    <authorgroup> 
      <author role="maintainer"> 
	<firstname>Christian Fredrik</firstname> 
	<surname>Kalager Schaller</surname> 
	<affiliation> 
	  <orgname>gnome.org</orgname> 
	  <address/> 
	</affiliation> 
      </author> 

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    <revhistory>
      <revision> 
			<revnumber>GStreamer Properties Manual V2.5</revnumber> 
			<date>June 2010</date> 
			<revdescription> 
	  			<para role="author">Marc-Andre Lureau</para>
	  			<para role="publisher">GNOME 文档项目</para>
			</revdescription> 
      </revision>
      <revision> 
			<revnumber>GStreamer 属性手册 V2.4</revnumber> 
			<date>2003年12月</date> 
			<revdescription> 
	  			<para role="author">Christian Fredrik Kalager Schaller</para>
	  			<para role="publisher">GNOME 文档项目</para>
			</revdescription> 
      </revision>
      <revision> 
			<revnumber>GStreamer 属性手册 V1.0</revnumber> 
			<date>2003年9月</date> 
			<revdescription> 
	  			<para role="author">Christian Fredrik Kalager Schaller</para>
	  			<para role="publisher">GNOME 文档项目</para>
			</revdescription> 
      </revision>
         </revhistory> 

    <releaseinfo>本手册讲述的是 GStreamer 属性手册 2.2.2 版。</releaseinfo> 
    <legalnotice> 
      <title>反馈</title> 
      <para>要报告关于GStreamer 属性应用程序或使用手册中的缺陷，或者提出建议，请参照 <ulink url="ghelp:gnome-feedback" type="help">GNOME 反馈页</ulink> 上的指导。</para>
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  </articleinfo> 

  <indexterm> 
    <primary>GStreamer 属性</primary> 
  </indexterm> 

<!-- ============= Document Body ============================= -->
<!-- ============= Introduction ============================== -->

  <sect1 id="gstreamer-properties-introduction"> 
    <title>介绍</title> 
    <para>The <application>GStreamer Properties</application> application enables you
    to configure parameters related to the hardware and multimedia
    systems on your system.</para>
    <note><para>Only advanced users should normally need
    this as your OS vendor should be shipping the system with the
    correct defaults.</para></note>
  </sect1>

  <sect1 id="gstreamer-properties-getting-started">
    <title>快速入门</title> 

    <para>您可以用下面的方法来启动 <application>GStreamer 属性</application>：</para> 
    <variablelist>
    	<varlistentry>
    		<term><guimenu>应用程序</guimenu> 菜单</term>
    		<listitem>
    		<para>点菜单 <menuchoice><guisubmenu>首选项</guisubmenu><guimenuitem>Gstreamer 属性</guimenuitem></menuchoice>。</para>
    		</listitem>
    	</varlistentry>
    	<varlistentry>
    		<term>命令行</term>
    		<listitem>
    		<para>输入 <command>gstreamer-properties</command>，然后按一下 <keycap>回车键</keycap>。</para>
    		<para> 		 
    		</para> 
    		</listitem>
    	</varlistentry>
    </variablelist>

    <para>当您启动 <application>GStreamer 属性</application> 后，会显示出来一个窗口。</para>

    <!-- ==== Figure ==== -->
      <figure id="gstreamer-properties-fig"> 
	<title>GStreamer 属性窗口</title> 
	<screenshot> 
	  <mediaobject> 
	    <imageobject>
	    <imagedata fileref="figures/gstreamer_properties_window.png" format="PNG"/> 
	    </imageobject>
	    <textobject> 
	      <phrase>显示 GStreamer 属性主窗口。包含菜单栏、工具栏、音频输入/输出选项的下拉菜单。</phrase> 
	    </textobject> 
	  </mediaobject> 
	</screenshot> 
      </figure>
    <!-- ==== End of Figure ==== -->

  </sect1>

<!-- ================ Usage ================================ -->

  <sect1 id="gstreamer-properties-usage"> 
    <title>用法</title>
	<para>The GStreamer properties applet offers four drop down
	menus spread over two tabs.  There are two drop-menues for
	audio and two for video. These choices set the default for
	most GNOME applications for output and input of Sound and
	Video.</para>

    <sect2 id="gstreamer-properties-concepts">
    	<title>理解菜单选项</title>

    	<para>Looking at the screen for setting audio options you
    	notice that the two sections are called Default Sink and
    	Default Source. These are terms used in the GStreamer
    	framework that GNOME uses to describe where data is sent and
    	where it comes from. The Default sink is in other words where
    	GNOME apps should output their sound, while Default source is
    	where the sound comes from.</para>

	<para>The reason you might want to alter these settings is
	because under Unix there are many different audio systems and
	sound server which you might want to output to. For instance
	on Linux popular alternatives are the PulseAudio sound server
	or ALSA.</para>

	<para>If you wish that your GNOME applcations output their
	sound to the PulseAudio sound server you set the Default Sink
	to use PulseAudio. And if you wish that your GNOME
	applications which has sound recording capabilities use the
	ALSA sound system, choose ALSA as the Default Source.</para>

	<note><para>As mentioned elsewhere in this user guide. These setting
	are meant for as a tool for advanced users who have
	specialized need. As an ordinary user, you should not need to
	set these as the vendor of your distribution should have set
	them to sensible defaults for you.
        </para></note>
    	
    </sect2>
  </sect1>  


</article>
