[FFmpeg-devel] Does i686 have MMX?

[Alex Converse]

2010/8/26 M?ns Rullg?rd <mans at mansr.com>

> Jason Garrett-Glaser <darkshikari at gmail.com> writes:
>
> > 2010/8/26 M?ns Rullg?rd <mans at mansr.com>:
> >> Alex Converse <alex.converse at gmail.com> writes:
> >>
> >>> 2010/8/26 M?ns Rullg?rd <mans at mansr.com>:
> >>>> Jason Garrett-Glaser <darkshikari at gmail.com> writes:
> >>>>
> >>>>> The issue is simple:
> >>>>>
> >>>>> 1.  People use --cpu on x86 to mean "it should run on at least this
> >>>>> CPU, and contain optimizations for all better CPUs".
> >>>>
> >>>> Are you aware of the contradiction in that statement?
> >>>
> >>> please elaborate
> >>
> >> "Optimisations for better CPUs" might not run on "this CPU".  Thus, if
> >> the code "contains" such optimisations, it might not run, yet running
> >> was a requirement.
> >
> > Runtime detection exists for a reason.  Don't be obtuse.
>
> A lot of existing things are flawed.
>

Did you find that in a fortune cookie?

WTF are you trying to say?

Are you saying the concept of runtime detection is flawed?