<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >Dynamic Parameters</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="GStreamer Application Development Manual" HREF="index.html"><LINK REL="UP" TITLE="Advanced GStreamer concepts" HREF="part-advanced.html"><LINK REL="PREVIOUS" TITLE="Your second application" HREF="chapter-hello2.html"><LINK REL="NEXT" TITLE="Creating and Attaching Dynamic Parameters" HREF="section-dparams-creating.html"></HEAD ><BODY CLASS="chapter" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" ><SPAN CLASS="application" >GStreamer</SPAN > Application Development Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="chapter-hello2.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="section-dparams-creating.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="chapter" ><H1 ><A NAME="chapter-dparams" ></A >Chapter 30. Dynamic Parameters</H1 ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="section-dparams-getting-started" >30.1. Getting Started</A ></H1 ><P > The Dynamic Parameters subsystem is contained within the <TT CLASS="filename" >gstcontrol</TT > library. You need to include the header in your application's source file: </P ><PRE CLASS="programlisting" > ... #include <gst/gst.h> #include <gst/control/control.h> ... </PRE ><P > Your application should link to the shared library <TT CLASS="filename" >gstcontrol</TT >. </P ><P > The <TT CLASS="filename" >gstcontrol</TT > library needs to be initialized when your application is run. This can be done after the the GStreamer library has been initialized. </P ><PRE CLASS="programlisting" > ... gst_init(&argc,&argv); gst_control_init(&argc,&argv); ... </PRE ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="chapter-hello2.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="section-dparams-creating.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Your second application</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="part-advanced.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Creating and Attaching Dynamic Parameters</TD ></TR ></TABLE ></DIV ></BODY ></HTML >