[Bug 698851] playbin: ability to mix or play multiple audio and text streams simultaneously

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=698851
  GStreamer | gst-plugins-base | git

--- Comment #16 from Sebastian Dröge <slomo at circular-chaos.org> 2013-05-23 07:13:16 UTC ---
(In reply to comment #15)
> Oh, and I haven't done anything to make it handle stream combiners with no
> srcpad yet.

I wouldn't allow that, and instead let the streamcombiner generate a custom
format that is then used by the sink. E.g. if you need all subtitle streams
together downstream, create a new subtitle format that allows you to relate
each subtitle buffer to the separate streams in the end, for example by just
adding a GstMeta to the buffers.
Allowing no-srcpad stream combiners will make the playbin code quite awful, ↑
would fit the design much better.

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