[FFmpeg-trac] #9755(undetermined:open): gapless playback of *some* MP3 files destroyed in the end after -c copy

[FFmpeg]

#9755: gapless playback of *some* MP3 files destroyed in the end after -c copy
-------------------------------------+-------------------------------------
             Reporter:  Christoph    |                    Owner:  (none)
  Anton Mitterer                     |
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Balling):

 >I understand that according to the LAME FAQ file, resultant MP3 files are
 zero padded in the front and back to make sure the inverse MDCT is
 performed properly, but also because the windows overlap.

 Yet our -c copy removes it all. Wow.

 https://stackoverflow.com/questions/48411053/how-to-compute-the-number-of-
 extra-samples-added-by-lame-or-ffmpeg
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9755#comment:17>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker