[FFmpeg-devel] [PATCH] all: use M_SQRT1_2, M_SQRT2, M_PI

Ganesh Ajjanagadde gajjanag at mit.edu
Sun Nov 22 22:25:33 CET 2015

On Fri, Nov 20, 2015 at 8:35 AM, Ganesh Ajjanagadde <gajjanag at mit.edu> wrote:
> On Thu, Nov 19, 2015 at 2:35 PM, Paul B Mahol <onemda at gmail.com> wrote:
>> On 11/19/15, Ganesh Ajjanagadde <gajjanag at mit.edu> wrote:
>>> On Thu, Nov 19, 2015 at 12:35 PM, Nicolas George <george at nsup.org> wrote:
>>>> Le nonidi 29 brumaire, an CCXXIV, Derek Buitenhuis a ecrit :
>>>>> Paul uses FreeBSD, if I recall. This is probably with glibc.
>>>> Still, M_PI is meant to have the full precision of the underlying type,
>>>> and
>>>> I very much doubt that kind of bug to be present in any common
>>>> implementation. And let us be realistic, the number of digits in
>>>> af_dynaudnorm.c is nothing but ludicrous.
>>> Exactly. Can't pull the source for bsd easily, but it likely is
>>> identical to openlibm since openlibm imported from freebsd:
>>> https://github.com/JuliaLang/openlibm/blob/master/include/openlibm_math.h
>>> which has an identical definition to gnu libm for M_PI.
>>> If such a silly, easily fixed bug exists with some libm, it can be
>>> fixed in a few minutes on their end, and I personally would do my best
>>> to publicize it to highlight the fundamental brokenness of said libm
>>> for the benefit of their users.
>> OK, you can change it.
> Pushed just this change for now, thanks. Will push the remainder soon.

all pushed.

>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel

More information about the ffmpeg-devel mailing list