[Bug 646638] handle stream (de)activation

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=646638
  GStreamer | gstreamer (core) | unspecified

Mark Nauwelaerts <mnauw> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mnauw at users.sourceforge.net
          Component|gst-plugins-base            |gstreamer (core)
            Summary|Disabling video decoding in |handle stream
                   |playbin2 doesn't lower CPU  |(de)activation
                   |usage                       |

--- Comment #5 from Mark Nauwelaerts <mnauw at users.sourceforge.net> 2012-06-18 14:14:53 UTC ---
Renaming title so this stream (de)activation is not hidden/buried here.

Note that such (de)activation is pretty useful/needed in case where limited
resources (think 'embedded') only allow a limited number of codec instances, so
you can't have them running on several streams simultaneously.

Also adding following comments here since related to multiple streams:
* inputselector seems to pass along all queries, including ALLOCATION, so that
might lead to confusing and complication for a downstream sink trying to
satisfy all that (particularly when it too has limited resources)
* at some point in stream switching/activation, maybe inputselector should also
send some RECONFIGURE event (upstream) ?

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