Bug#782125: Support atom Xtra

[Mathieu Malaterre]

Package: gpac
Version: 0.5.0+svn5324~dfsg1-1+b3
Severity: minor

It would be nice to support atom Xtra. Currenly it dumps as:

 <UDTARecord Type="Xtra">
 <UnknownBox>
 <BoxInfo Size="206" Type="Xtra"/>
 </UnknownBox>

Reference implementation is at:
http://code.google.com/p/mp4v2/issues/detail?id=113