[Bug 785142] New: basesrc: Sending eos maybe block for a small period or if pipeline is PAUSED

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=785142

            Bug ID: 785142
           Summary: basesrc:  Sending eos maybe block for a small period
                    or if pipeline is PAUSED
    Classification: Platform
           Product: GStreamer
           Version: 1.13.x
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: nicolas at ndufresne.ca
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

While fixing bug #783301 I had to make a small thread-off. So now, instead of
blocking forever in unpredictable condition, this call may block for a short
period of time (or as long as the pipeline is paused).

This is a side effect of having to unlock/unlock_stop the source and not
flushing downstream. This is needed to handle the case where we have udpsrc in
the pipeline that isn't receiving data. In that case, the queued eos event
would never be handled.

A possible solution would be to queue the EOS, and run the unlock/unlock_stop
sequence asynchronously. Assuming we make sure the ref-count is done properly,
and that we clearly the pending EOS is fully thread safe, I believe that
gst_element_call_async() could be used. Obviously, large testing will be needed
again.

We should probably have a look at bug #752815 while at it, as it seems fairly
similar, at least at first sight.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.