[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
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             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by klaussfreire):

 I always intended to push this forward, when testing is done, as a series
 of smaller patches. I'm not sure I can split all of it, but there are
 quite a few worthy split points.

 I think the main issue with the current patch is overall un-tidyness, with
 dead code left over from earlier attempts at some solutions for instance.
 That's what I think doesn't make it commitable yet, it has to be cleaned
 up.

 Plus, there are quite a few magic numbers that ought to be tunables.

 The slowness can be fixed later, encoding quality I believe being more
 important than speed, if needed. It's not '''that''' much slower anyway,
 still faster than realtime. VBR wasn't even working before, so even if
 imperfect, any improvements to VBR are commitable.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:229>
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