[Bug 757563] audiomixer: issues with seamless looping (missing support for non-flushing seeks)

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=757563

Stefan Sauer (gstreamer, gtkdoc dev) <ensonic at sonicpulse.de> changed:

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--- Comment #7 from Stefan Sauer (gstreamer, gtkdoc dev) <ensonic at sonicpulse.de> ---
Created attachment 362753
  --> https://bugzilla.gnome.org/attachment.cgi?id=362753&action=edit
implementation for non flushing seek segment handling

This is my current WIP patch. It works for buzztrax and passes the tests (incl
gst-validate ges).

There is one major things to discuss (see
gst_aggregator_do_events_and_queries()). I need to handle all SEGMENT_DONE
events before proceeding into the pad-queues. If I would handle SEGMENT_DONE
and then the next queued SEGMENT event. I would toggle the flag on the pad and
never notice that I got all SEGMENT-DONE events.
We might need to do something based on sequence numbers here, but it sounds
expensive.

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