[FFmpeg-trac] #10143(undetermined:new): Very slow on Apple Silicon

[FFmpeg]

#10143: Very slow on Apple Silicon
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             Reporter:  Gabriel      |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  apple        |               Blocked By:
  silicon, slow performance          |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Gabriel):

 It is, of course, not a joke. I did not know that x265/H264 have not been
 optimized for NEON.

 After all, there are comparisons between SSE and NEON, for instance in
 ray-tracing
 (see e.g.,  https://blog.yiningkarlli.com/2021/09/neon-vs-sse.html )
 These comparisons look like NEON is not too bad; some things are easier,
 some things are more difficult to do in NEON, but overall, there is no
 difference in principle.

 Also, it looks like an automatic translation of the SSE code, using
 sse2neon, produces relatively good results.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10143#comment:2>
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