#7951: multiple components segfaulting in av_close_input_stream
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Reporter: Andrew Dranse <ajdranse@…> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: critical | Milestone: 0.23
Component: MythTV - General | Version: 0.22-fixes
Severity: medium | Mlocked: 0
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Comment(by danielk):
There is an insufficiently documented ugly hack on line 2037 of
avformatdecoder.cpp
{{{
//av_close_input_file(ic); // causes segfault
}}}
which may be related. As a general rule all ffmpeg file, stream & codec
object creation and teardown routines need to be protected by a global
lock as they are neither thread-safe nor re-entrant code. The lack of
avcodeclock locking in some such locations is probably the cause of the
instability.
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Ticket URL: <http://svn.mythtv.org/trac/ticket/7951#comment:2>
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