[FFmpeg-devel] [PATCH] Document av_gcd()
Reimar Döffinger
Reimar.Doeffinger
Sat Feb 28 18:49:27 CET 2009
On Sat, Feb 28, 2009 at 06:23:37PM +0100, Michael Niedermayer wrote:
> On Sat, Feb 28, 2009 at 04:53:08PM +0100, Stefano Sabatini wrote:
> > Hi,
> > as in subject, regards.
> > --
> > FFmpeg = Funny and Forgiving Multimedia Pitiful Elected Ghost
>
> > Index: libavutil/mathematics.h
> > ===================================================================
> > --- libavutil/mathematics.h (revision 17629)
> > +++ libavutil/mathematics.h (working copy)
> > @@ -50,6 +50,9 @@
> > AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
> > };
> >
> > +/**
> > + * Returns the greatest common divisor of a and b.
> > + */
> > int64_t av_const av_gcd(int64_t a, int64_t b);
> >
> > /**
>
> ok,also please add
> "if either or both are <=0 then the behavior is undefined"
My r_frame_rate code in utils.c uses the = 0 case already, since I
considered that the common mathematical definition...
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