[FFmpeg-trac] #11357(avcodec:new): H.264 decoder bug on Arm

[FFmpeg]

#11357: H.264 decoder bug on Arm
-------------------------------------+-------------------------------------
             Reporter:  Bin Peng     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:  git-
             Keywords:  H264         |  master
  decoder                            |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:

 When decoding a bitstream with weightb=2 enabled, the output of FFmpeg on
 ARM and x86 platforms may differ.


 How to reproduce:
 {{{
 using ffmpeg git-master built on aarch64 and test on aarch64 devices
 % ffmpeg -i inter_weighted_bipred2.264 -f framemd5 -y md5_arm

 using ffmpeg git-master built on x86 and test on x86 devices
 % ffmpeg -i inter_weighted_bipred2.264 -f framemd5 -y md5_x86

 md5_arm and md5_x86 would be different, but we expect the same decode
 result
 on different CPUs with the same input bit-stream.
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11357>
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