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

FFmpeg trac at avcodec.org
Thu Nov 27 20:33:15 CET 2014


#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 Kamedo2):

 sine_tester.flac causes assertion error at all -b:a and -q:a 2.839 or
 bigger.
 This ​http://clt.odu.edu/dropbox/ffmpeg/input.mp4 also causes assertion
 error at -b:a 177k or bigger.
 They all causes
 {{{
 Assertion diff >= 0 && diff <= 120 failed at libavcodec/aacenc.c:399
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:335>
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