[Bug 754664] Can't link tsdemux to aacparse and rtpmp4gpay

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=754664

--- Comment #7 from Thiago Sousa Santos <thiagossantos at gmail.com> ---
(In reply to davywj from comment #6)
> Thank you for that explanation.
> 
> Why does aacparse bother to convert the mpegversion caps when fakesink will
> accept ANY?
> 
> Further more, the avdec_aac decoder accepts both mpegversion 2 and 4 and so
> it will decode the output of aacparse. However, looking at the graph this
> creates, aacparse is still converting caps from 2 to 4 even though avdec_aac
> accepts 2.
> 
> I would expect that if mpegversion=2 goes in to aacparse and it is unable to
> convert then mpegversion=2 should come out of it. This unexpected change
> from 2 to 4 is what led me to believe rtpmp4gpay would work.

It is not actually converting, it just fixes the caps because it is wrong. It
is mpegversion=4 just that tsdemux says it is mpegversion=2 but it isn't.

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