[FFmpeg-devel] [PATCH] lavu/intmath: add faster clz support

[Clément Bœsch]

On Thu, Dec 17, 2015 at 09:23:53AM -0800, Ganesh Ajjanagadde wrote:
> On Thu, Dec 17, 2015 at 9:20 AM, Kieran Kunhya <kierank at obe.tv> wrote:
> >>> +static av_always_inline av_const unsigned ff_clz_c(unsigned v)
> >>> +{
> >>> +    unsigned i = sizeof(x) * 8;
> >>> +
> >>> +    while (x) {
> >>> +        x >>= 1;
> >>> +        i--;
> >>> +    }
> >>> +
> >>> +    return i;
> >>> +}
> >>> +#endif
> >>> +
> >
> > erm, does even work?
> 
> you mean in what sense? I literally copy/pasted it from avfilter/af_sofalizer.
> If you mean building correctly, I don't know as I have the built-in.
> But then this patch does not actually use it yet; merely adds it to
> the header.

v → x in arg

-- 
Clément B.
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