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

FFmpeg trac at avcodec.org
Mon Jul 22 04:13:27 CEST 2013


#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):

 Is that FFT, not MDCT?
 I'm guessing that lowering the cutoff increases the bitrate is the effect
 of comment:32. Very strange, as HF contents usually takes up more bits,
 but it makes sense.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:74>
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