[FFmpeg-trac] #4861(avcodec:open): E-AC3 audio glitch : exponent out-of-range

FFmpeg trac at avcodec.org
Tue Jun 7 09:24:33 CEST 2016


#4861: E-AC3 audio glitch : exponent out-of-range
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             Reporter:  Guillaume   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  eac3        |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by Eiffel):

 This bug is very annoying and occurs more often in speech than music. On a
 talkshow, this can be several times per minute.
 I observe it on each DVB-T recording and occasionally in other sources.

 Conversion with ffmpeg shows an "exponent out-of-range" error for each
 glitch.
 However, some errors reported are not audible.

 The same DVB-T sample reads fine for me on two hardware players and with
 MPC-HC v1.3.1249.0 on a very old PC that received tons of codecs and
 upgrades. On the same PC, the glitches occur with VideoLAN player.

 On a new PC, I cannot read this sample with whatever I test. Probably
 because most plyers use ffmpeg...

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Ticket URL: <https://trac.ffmpeg.org/ticket/4861#comment:8>
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