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

FFmpeg trac at avcodec.org
Mon Mar 9 03:40:28 CET 2015


#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):

 I've encoded many sounds, and listened to hours of them. Standard ABR and
 VBR were tested.

 ffmpeg_aac320k_collapse4 at 96 kbps is quite bad at this moment of the git
 head (r70520).
 The sine wave warbling problem #2706 still appear.

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Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:367>
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