[Bug 674043] New: [0.11] Serialized allocation query deadlocks
bugzilla at gnome.org
Fri Apr 13 05:18:59 PDT 2012
GStreamer | gstreamer (core) | 0.11.x
Summary: [0.11] Serialized allocation query deadlocks
OS/Version: Mac OS
Component: gstreamer (core)
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: matej.knopp at gmail.com
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
QT Demuxer deadlocks when posting the (now serialized) allocation query
#3 0x015c4213 in g_cond_wait ()
#4 0x02d24b1f in gst_multi_queue_sink_query ()
#5 0x01320cb7 in gst_pad_query ()
#6 0x01321697 in gst_pad_peer_query ()
#7 0x0acd25ea in qtdemux_do_allocation ()
#8 0x0acd3313 in gst_qtdemux_add_stream ()
#9 0x0acdeea7 in qtdemux_expose_streams
gst_multi_queue_sink_query blocks until there is response for the query, but
the response never comes because of a blocking probe. The blocking probe will
be lifted when other streams are exposed, which doesn't happen because qtdemux
loop thread is stuck.
I might be missing something here but how can serialized queries work (given
current implementation) with queues without deadlocking?
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