[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):

 [[Image(http://i40.tinypic.com/14smbo0.png)]]
 songs: 5 min snippets of pops and jazz, 44.1kHz, stereo
 non-music sounds: 16 min of artificial sounds, difficult samples, speech,
 etc, 48kHz, stereo

 ||=LAME equivalent=||=Bitrate=||=VBR number=||
 ||   ||16||0.029||
 ||-V9.9||32||0.053||
 ||   ||48||0.097||
 ||-V9||64||0.23||
 ||-V8||80||0.43||
 ||-V7||96||0.55||
 ||-V6||112||0.66||
 ||-V5||128||0.86||
 ||   ||144||1.06||
 ||-V4||160||1.17||
 ||-V3||176||1.29||
 ||-V2||192||1.43||
 ||-V1||224||2.2||
 ||-V0||256||4.3||
 ||   ||288||6.2||
 ||   ||320||7||
 ||   ||352||7.7||
 ||   ||384||10||

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:58>
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