[FFmpeg-devel] [PATCH] configure: enable runtime cpu detect by default.

[Xidorn Quan]

On Sun, Sep 23, 2012 at 9:57 AM, Michael Niedermayer <michaelni at gmx.at>wrote:

> On Fri, Sep 21, 2012 at 06:15:39PM +0200, Michael Niedermayer wrote:
> > with the exception of libpostproc runtime_cpudetect = no is not
> > supported thus having no as default really is quite odd, it results in
> > a libpostproc where HAVE_MMX* have very different meaning from the
> > rest of ffmpeg and it breaks any x86 cpu that doesnt support mmx2
> > because mmx2 is hardcoded as a result
> >
> > Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
>
> if there are no objections i will apply this tomorrow, it fixes
> libpostproc on pre MMX2 cpus
>

Most people should prefer to compile for their own cpu which is
hardly changed. Only those who distribute binary packages would like
to enable runtime cpu detection. So I think it is better to disable
it by default, and notice the distributors to enable it themselves.