[FFmpeg-trac] #6578(undetermined:new): ARM NEON detection should use getauxval instead of parsing files in /proc

FFmpeg trac at avcodec.org
Thu Aug 10 05:56:00 EEST 2017


#6578: ARM NEON detection should use getauxval instead of parsing files in /proc
-------------------------------------+-------------------------------------
             Reporter:  jcowgill     |                     Type:
               Status:  new          |  enhancement
            Component:               |                 Priority:  normal
  undetermined                       |                  Version:
             Keywords:               |  unspecified
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 It was suggested in this message from the Debian BTS that ffmpeg should
 use the {{{getauxval}}} function to detect the presence of NEON instead of
 parsing files in /proc. This is theoretically faster and doesn't require
 /proc to be mounted.

 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870676#49

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Ticket URL: <https://trac.ffmpeg.org/ticket/6578>
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