[FFmpeg-trac] #9816(avcodec:new): Ffmpeg 4.4.x play 24bit ape file with big noise.

FFmpeg trac at avcodec.org
Fri Jun 24 14:51:38 EEST 2022

#9816: Ffmpeg 4.4.x play 24bit ape file with big noise.
             Reporter:  Song ziming  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  4.4.1        |               Resolution:
             Keywords:  24bit ape    |               Blocked By:
  noise                              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Comment (by Song ziming):

 Replying to [comment:9 Balling]:
 > Replying to [comment:8 Song ziming]:
 > > Replying to [comment:7 Balling]:
 > > > Those are not supported here.
 > >
 > > What are not support? The problem is libavcodec/apedec.c decoder not
 work well for 24bit ape file... in the 4.4.x branch or master.
 > >
 > >
 > We do not support 4.4. I cannot reproduce on master. It does happen on
 older ffmpeg in VLC e.g., sure./tag/latest
 I download daily build ffmpeg-master-latest-win64-lgpl.zip from
 https://github.com/BtbN/FFmpeg-Builds/releases。Unzip it on windows,enter
 bin folder,run cmd,input :ffplay APE_48K_24bit_2CH_02_01.ape​ . After a
 few seconds it appears big noise.
Ticket URL: <https://trac.ffmpeg.org/ticket/9816#comment:10>
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