Hi Mike, Can I use decodebin2 in playbin and resolve this problem? Thanks Zhao Liang <div class="gmail_quote">2009/2/21 Michael Smith <<a href="mailto:msmith@xiph.org">msmith@xiph.org</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">On Fri, Feb 20, 2009 at 6:03 PM, Liang Zhao <<a href="mailto:liangzhao.bit@gmail.com">liangzhao.bit@gmail.com</a>> wrote: > Hi Mke, > > Thank you. > > So the only way is to use playbin2?  what is the difference on intefaces, > properties and signals between playbin2 and playbin? > I find most of them are same. </div>The only sensible approach (assuming you want to reuse existing code, rather than writing something from scratch yourself) is to switch to playbin2. The documentation can help you with the differences - you're right, most things are similar. Mike </blockquote></div>