Split from #845. Somewhat related to #1507.
I don't think that this ever worked properly.
Some related fixes and improvements:
If it cannot be fixed, we should remove it.
r15732 disables all aurora codecs for trunk - only the builtin wav remains, r15733 does the same for older branches.
I've wasted enough time on this and still can't figure it out.
Major related issue fixed in r15783. This fixes a number of codecs which are now parsed correctly, so r15784 removes them from the blacklist: aac and mp3 via the media source API. (and maybe this should only be done if the server exposes a flag to state that it won't send broken streams since those can crash Safari..) Sadly, this doesn't fix software decoding via aurora. (so those codecs remain disabled there)
Related: we now handle IE sound using an http stream (r15781 + r15782)
Most browsers now support the audio source API, let's deprecate aurora.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1509