dshowaudiodec: support AAC and others on Windows 7+
Submitted by Jo Shields
Link to original bug (#665643)
Description
Windows 7 added support for AAC file playback, without needing external codecs - as per http://msdn.microsoft.com/en-us/library/windows/desktop/dd390676%28v=vs.85%29.aspx
It would be nice to add the appropriate new audio subtypes to dshowdecwrapper, such that GStreamer apps on Windows can play AAC files without the usual codec patent license concerns that go along with redistributing faad.