[FFmpeg-trac] #9667(avcodec:reopened): HE-AAC (not in mp4) decode samples off by one sample-time (was: HE-AAC decode samples off by one sample-time)

[FFmpeg]

#9667: HE-AAC (not in mp4) decode samples off by one sample-time
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             Reporter:  Nick        |                    Owner:  (none)
                 Type:  defect      |                   Status:  reopened
             Priority:  minor       |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  aac         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Changes (by Balling):

 * status:  closed => reopened
 * resolution:  fixed =>
 * reproduced:  0 => 1
 * summary:  HE-AAC decode samples off by one sample-time => HE-AAC (not in
     mp4) decode samples off by one sample-time

Comment:

 Since it was bothering me, I checked 48k flac decoded to wav and then
 encoded that way to .aac and .mp4 with libfdk_aac. I then decoded both to
 wav with native decoder. mp4 is perfectly aligned in Audacity, '''so
 removal of initial priming is sample accurate'''. (Remainder is still not
 removed.)

 '''Now, I check''' raw .aac file. Indeed if you will remove 5057 (counting
 from 0) in Audacity you need to remove one more sample to get in sync. So
 reopening.

 AGAIN, mp4 editlist is not affected!
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Ticket URL: <https://trac.ffmpeg.org/ticket/9667#comment:9>
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