[libav-bugs] [Bug 195] New: segfault in SBR decoder on sample rate changes.

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Sat Jan 7 00:33:04 CET 2012


http://bugzilla.libav.org/show_bug.cgi?id=195

           Summary: segfault in SBR decoder on sample rate changes.
           Product: Libav
           Version: git HEAD
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: alex.converse at gmail.com


Created attachment 266
  --> http://bugzilla.libav.org/attachment.cgi?id=266
File that causes a crash.

The SBR decoder can segfault on a sample rate change. This is caused by the
circular buffer getting desynchronized switching in and out of downsampled
mode. A fix can be placed at the synthesis buffer rollover check, but none of
the other state variables make much sense after a sample rate change and the
decoder probably needs a full reset.

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