[FFmpeg-trac] #9228(avcodec:new): multiple output in single C/libavcodec xcode process offsets "start" in output files

[FFmpeg]

#9228: multiple output in single C/libavcodec xcode process offsets "start" in
output files
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             Reporter:  Ray         |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  AAC         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by Ray):

 Replying to [comment:3 Carl Eugen Hoyos]:
 > Can you confirm that the issue is not reproducible with {{{ffmpeg}}},
 the application?

 confirmed using ffmpeg head and other versions via ffmpeg itself does not
 have this problem.  Both files generated have "start" at 0secs

 {{{
 $ ffmpeg -i foo.wav \
   -b:a 96k -c:a aac bar00.m4a \
   -b:a 96k -c:a aac bar01.m4a

 $ for i in bar*.m4a; do ffprobe -hide_banner -i "$i"; done
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bar00.m4a':
   Metadata:
     major_brand     : M4A
     minor_version   : 512
     compatible_brands: M4A isomiso2
     encoder         : Lavf58.45.100
   Duration: 00:00:05.02, start: 0.000000, bitrate: 79 kb/s
     Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 76 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bar01.m4a':
   Metadata:
     major_brand     : M4A
     minor_version   : 512
     compatible_brands: M4A isomiso2
     encoder         : Lavf58.45.100
   Duration: 00:00:05.02, start: 0.000000, bitrate: 80 kb/s
     Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 78 kb/s (default)
     Metadata:
       handler_name    : SoundHandler
 }}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/9228#comment:4>
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