[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

[FFmpeg]

#2686: Native AAC encoder collapses at high bitrates on some samples
-------------------------------------+-------------------------------------
             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |  klaussfreire
             Priority:  normal       |                   Status:  open
              Version:  git-master   |                Component:  avcodec
             Keywords:  aac          |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by atomnuker):

 Replying to [comment:477 Kamedo2]:
 > https://www.ffmpeg.org/ffmpeg-codecs.html#Options-5
 > 'aac_pred'
 >
 >     Main-type prediction profile, is enabled by and will enable the
 aac_pred option. Introduced in MPEG2.
 >
 > I believe it should be 'aac_main'.

 It's correct as it is. You can enable AAC-Main (and thus prediction) in
 two ways: set the profile via -profile:a aac_main or set the prediction
 flag via -aac_pred 1. Setting one will set the other as well, since you
 can't have prediction without the profile being set and you can't have the
 profile set without prediction (well you can but it would be a hack as
 you'd just set all scalefactor bands to disable prediction).

--
Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:479>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker