+ <author>Wim Taymans <wim.taymans@gmail.com>, Sjoerd Simons <sjoerd@luon.net></author>
+ <pads>
+ <caps>
+ <name>sink</name>
+ <direction>sink</direction>
+ <presence>always</presence>
+ <details>multipart/x-mixed-replace</details>
+ </caps>
+ <caps>
+ <name>src_%d</name>
+ <direction>source</direction>
+ <presence>sometimes</presence>
+ <details>ANY</details>
+ </caps>
+ </pads>