[FFmpeg-trac] #11018(ffmpeg:new): Bug: Export AAC from video file with specific duration don't give the good duration

[FFmpeg]

#11018: Bug: Export AAC from video file with specific duration don't give the good
duration
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:  (none)
  Imprevisible                       |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  ffmpeg
              Version:  unspecified  |               Resolution:
             Keywords:  segment aac  |               Blocked By:
  seek seeking                       |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by MasterQuestionable):

 ͏    Lossy audio codecs tend to impose limit on the number of samples:\\
 ͏    Which must be a multiple of the Samples Per Frame.\\
 ͏    For AAC it's constant 1,024 SPF.\\
 ͏    See also:\\
 ͏    https://stackoverflow.com/questions/59173435#59332275\\
 ͏    https://xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-260001.3.2\\
 ͏    https://ffmpeg.org/ffmpeg-codecs.html#libopus-1\\
 ͏    https://www.opus-
 codec.org/docs/html_api/group__opusencoder.html#ga88621a963b809ebfc27887f13518c966

 ͏    Also you might be doing pointless re-encoding with your command:
 [https://ffmpeg.org/ffmpeg.html#Main-options ͏"-c copy"] preferable.\\
 ͏    (and seemingly confused [https://ffmpeg.org/ffmpeg.html#Advanced-
 options ͏"-map"] directive)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11018#comment:2>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker