[mythtv-commits] Ticket #5220: Any corruption in mpeg transport streams cases loud chirps in ac3 audio
MythTV
mythtv at cvs.mythtv.org
Fri Apr 18 17:52:00 UTC 2008
#5220: Any corruption in mpeg transport streams cases loud chirps in ac3 audio
-------------------------------------------------------+--------------------
Reporter: Tom Dexter <digitalaudiorock at hotmail.com> | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: mythtv | Version: 0.21-fixes
Severity: medium | Mlocked: 0
-------------------------------------------------------+--------------------
The version of ffmpeg used in 0.21 allows serious full-scale pops and
chirps in ac3 audio if there's any corruption in the mpeg ts file (from
OTA interference for example).
It appears that in newer versions of ffmpeg libavcodec/ac3dec.c does a crc
checksum and drops any bad ac3.
Other details have been posted here:
http://www.gossamer-threads.com/lists/mythtv/dev/330167
I'm attaching a patch I'm using to address this.
--
Ticket URL: <http://svn.mythtv.org/trac/ticket/5220>
MythTV <http://www.mythtv.org/>
MythTV
More information about the mythtv-commits
mailing list