[FFmpeg-trac] #9764(avcodec:new): MP3 decoding errors on ARMv4 hardware

FFmpeg trac at avcodec.org
Tue Aug 16 03:26:53 EEST 2022


#9764: MP3 decoding errors on ARMv4 hardware
-------------------------------------+-------------------------------------
             Reporter:  David        |                    Owner:  (none)
  Fletcher                           |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  mp3 arm      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by David Fletcher):

 ffmpeg (the application) is not built in the configuration used here -
 it's the libraries that are being used: libavformat.a libavcodec.a
 libswresample.a libavutil.a

 The configuration of the source code aims to minimise the size of the
 libraries due to total available storage on the ARMv4 device being 32MB.
 Using --disable-avfilter seems to prevent ffmpeg from building but all the
 required libraries are still built.

 If you do build ffmpeg (--enable-avfilter) it ends up with at least a
 minimum number of filters included. It refuses to run without them so it's
 not reproducing the situation from the transcode_aac example file (which
 is adapted here to test the libraries).

 I will try the ffmpeg application and report back, but it's not really
 reproducing the same situation as using the libraries direct.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9764#comment:6>
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