[gstreamer-bugs] [Bug 503592] New: gstpad.c does many ref/unref of peer pad in dataflow

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: HEAD CVS
           Summary: gstpad.c does many ref/unref of peer pad in dataflow
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: ensonic at sonicpulse.de
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


in
gst_pad_push, gst_pad_check_pull_range, gst_pad_pull_range
one can find code like below. this causes atomic ops for all the dataflow. To
give an idea - I added the GST_WARNING to count them and for a 2 min avi I got
91949 ref/unrefs.

GST_OBJECT_LOCK (pad);

if (G_UNLIKELY ((peer = GST_PAD_PEER (pad)) == NULL))
  goto not_linked;

gst_object_ref (peer);
GST_WARNING("!ref peer pad!");

GST_OBJECT_UNLOCK (pad);

ret = gst_pad_chain_unchecked (peer, buffer);

gst_object_unref (peer);


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