[FFmpeg-trac] #9616(ffmpeg:closed): concat of ffmpeg-created opus files defect

[FFmpeg]

#9616: concat of ffmpeg-created opus files defect
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             Reporter:  Wolfgang May  |                    Owner:  (none)
                 Type:  defect        |                   Status:  closed
             Priority:  normal        |                Component:  ffmpeg
              Version:  git-master    |               Resolution:  invalid
             Keywords:  concat opus   |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by Wolfgang May):

 THX.
 As far as I understand, the generated+concatenated output files are
 correct Opus files according to the Opus spec (I do/did not know much of
 the details of the formats used in webm and the BBB tool, so I could not
 estimate whether it is a bug in Firefox, or whether chrome is overly
 tolerant).
 So standard-compliant tools should be able to play them, and maybe it will
 be corrected some time in firefox (with the above information I will do a
 bugreport there).
 Is there a quick way how to -as you mentioned- cut away just the last
 audio frame with ffmpeg?
 (otherwise as a workaround I will create a slightly longer audio file, and
 cut it in a second step)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9616#comment:3>
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