[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       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Kamedo2):

 {{{
 ffmpeg55212 -y -i input.wav -c:a aac -strict experimental -b:a 96k
 output.mp4
 ffmpeg55212_patchv4 -y -i input.wav -c:a aac -strict experimental -b:a 96k
 output.mp4
 ffmpeg55212 -y -i input.wav -c:a libfdk_aac -b:a 96k -afterburner 1
 output.mp4

 ffmpeg55212 -y -i input.wav -c:a aac -strict experimental -b:a 128k
 output.mp4
 ffmpeg55212_patchv4 -y -i input.wav -c:a aac -strict experimental -b:a
 128k output.mp4
 ffmpeg55212 -y -i input.wav -c:a libfdk_aac -b:a 128k -afterburner 1
 output.mp4

 faad -b 4 -o output.float.wav output.mp4
 }}}
 The ABC/HR test is ongoing. These six outputs were shuffled and I listen
 to them without knowing which is which. I've done 2 samples out of 20. 10%
 done.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:134>
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