tsdemux: lacks locking in the seeking code
@vincent
Submitted by Vincent Penquerc'h Link to original bug (#747442)
Description
+++ This bug was initially created as a clone of Bug 735100 +++
Comment from ocrete in the original bug:
Not specific to this patch, but it seems the whole tsdemux has no locking at all in the seeking code, so we shouldn't be surprised if seeking sometimes exhibits random behaviours...