When Libav performs CPU feature detection (i.e., does this chip have VFP
or NEON?) on ARM, the options are determined at compile time. This is in
contrast to x86 where it performs feature detection at run time.
I just wanted to learn about the reasoning behind this. Is it not
possible to do run time feature detection on ARM? Or was it reasoned
that run time feature detection isn't as useful for a primarily embedded
platform (where software will be more static)?
Thanks,
--
-Mike Melanson
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