gstreamer/docs/manual/highlevel-components.xml

<chapter id="cha-components">
  <title>Components</title>
  <para> 
    <application>GStreamer</application> includes components that people can include
    in their programs.
  </para>

  <sect1>
    <title>GstPlay</title>
    <para> 
      GstPlay is a GtkWidget with a simple API to play, pause and stop a media file.
    </para>
      
  </sect1>

  <sect1>
    <title>GstMediaPlay</title>
    <para> 
      GstMediaply is a complete player widget.
    </para>
      
  </sect1>

  <sect1>
    <title>GstEditor</title>
    <para> 
      GstEditor is a set of widgets to display a graphical representation of a 
      pipeline.
    </para> 
  </sect1>

</chapter>