[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 Kamedo2):

 I'm about to start a preliminary listening test of:
 - FAAC abr 96k.mp4
 - FAAC vbr q30(~48kbps).mp4
 - FFmpeg native mp2 encoder 96k.mp2
 - vo-aacenc 0.1.3 abr 96k.mp4
 - Bladeenc 96k.mp3
 - FFmpeg native AAC encoder 96k.mp4
 - FFmpeg native AAC encoder+v8g patch 96k.mp4
 using first 15 samples of a 2011 public multiformat listening test (30
 samples).

 I guess the v8g at 96kbps beats the FAAC at 96kbps, because the FAAC is
 quite bad at lower bitrates.

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Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:299>
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