[Bug 757548] aggregator: Forced to produce data in paused state

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=757548

Sebastian Dröge (slomo) <slomo at coaxion.net> changed:

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--- Comment #17 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
Comment on attachment 326578
  --> https://bugzilla.gnome.org/attachment.cgi?id=326578
aggregator: Start the task when linked

This still seems to have the problem that you wait for a stream-start event
before starting, but might already want to produce data in a live scenario.
Consider the case where we link a live upstream that is already running and has
sent its sticky events to the srcpads already before linking (like all demuxers
do) but receives no data for a while. It would successfully answer the LATENCY
query, but you will only see the stream-start event once the first buffer is
sent (or another serialized event). We don't forward sticky events
automatically when linking as that would forward them from the application
thread and potentially block the application for a while.

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