[FFmpeg-trac] #4178(undetermined:open): Opus audio in MKV container

FFmpeg trac at avcodec.org
Tue Jan 20 21:19:01 CET 2015


#4178: Opus audio in MKV container
-------------------------------------+-------------------------------------
             Reporter:  agressiv     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mkv opus     |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by vigneshvg):

 Author of change 7b0a839b (the regression) here.

 I looked into the attached sample file, it seems like it has
 DiscardPadding elements in frames where it shouldn't. DiscardPadding is
 supposed to be present only in the very last frame of the file. Whereas
 the attached sample file has DiscardPadding element scattered all over the
 file.

 Could you please tell if this file was created using ffmpeg? If so, can
 you please tell the exact command line you used to encode this file?

 If this file was created by some other tool, then the file is invalid and
 the crackling artifacts are intended behavior as per the DiscardPadding
 element.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4178#comment:2>
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