[Bug 705332] New: queue2s global state is effected by buffery queyr handling
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Fri Aug 2 01:57:50 PDT 2013
https://bugzilla.gnome.org/show_bug.cgi?id=705332
GStreamer | gstreamer (core) | git
Summary: queue2s global state is effected by buffery queyr
handling
Classification: Platform
Product: GStreamer
Version: git
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gstreamer (core)
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: sjoerd at luon.net
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
One thing i noticed when studying the queue2 code for a bit is that when a
buffering query is handled it use the get_buffering_percent function to get
some statitics. Unfortunately this function also calculated whether the queue
should be buffering and adapts the global queue2 state in case of state
transitions from/to buffering (including whether a buffering message was posted
on the bus!).
This unfortunately means that there is a race which can cause buffering
messages to never posted iff the global state changes happen as a result of a
query instead of resulting from bytes flowing in/out..
Unfortunately i didn't have the time to prepare a patch for this one :/
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