Re: [FFmpeg-devel] [PATCH] lavu/lfg: add 64 bit random number generator

2016-03-15 Thread Daniel Serpell
Hi, El Mon, Mar 14, 2016 at 08:42:32PM -0400, Ganesh Ajjanagadde escribio: > On Sun, Mar 13, 2016 at 11:08 PM, Michael Niedermayer > wrote: > > On Sun, Mar 13, 2016 at 07:12:50PM -0400, Ganesh Ajjanagadde wrote: > >> This is based on the relatively well known xorshift128+ of Sebastiano > >> Vigna

Re: [FFmpeg-devel] [PATCH 1/2] avutil/common: add av_clipd64

2015-11-02 Thread Daniel Serpell
Hi, On Sun, Nov 01, 2015 at 01:03:35PM -0500, Ganesh Ajjanagadde wrote: > The rationale for this function is reflected in the documentation for > it, and is copied here: > > Clip a double value into the long long amin-amax range. > This function is needed because conversion of floating point to i

Re: [FFmpeg-devel] [PATCH 1/2] avutil/common: add av_clipd64

2015-11-02 Thread Daniel Serpell
Hi, On Sun, Nov 01, 2015 at 01:03:35PM -0500, Ganesh Ajjanagadde wrote: > The rationale for this function is reflected in the documentation for > it, and is copied here: > > Clip a double value into the long long amin-amax range. > This function is needed because conversion of floating point to i

Re: [FFmpeg-devel] [PATCH 3/4] avcodec/ppc/fdctdsp: use more accurate constants

2015-11-16 Thread Daniel Serpell
Hi!, El Fri, Nov 13, 2015 at 11:42:30AM -0500, Ganesh Ajjanagadde escribio: > Whoever wrote this stuff had a pretty bad libm - digits differ pretty > quickly. They where correctly rounded to 24bit precision. I don't know if that was intentional, so I can't comment on the correctness of the patch.

Re: [FFmpeg-devel] [PATCHv2] lavc/cbrt_tablegen: speed up tablegen

2016-01-05 Thread Daniel Serpell
Hi!, El Mon, Jan 04, 2016 at 06:33:59PM -0800, Ganesh Ajjanagadde escribio: > This exploits an approach based on the sieve of Eratosthenes, a popular > method for generating prime numbers. > > Tables are identical to previous ones. > > Tested with FATE with/without --enable-hardcoded-tables. >

Re: [FFmpeg-devel] [PATCHv2] lavc/cbrt_tablegen: speed up tablegen

2016-01-05 Thread Daniel Serpell
Hi!, El Tue, Jan 05, 2016 at 08:08:35AM -0800, Ganesh Ajjanagadde escribio: > On Tue, Jan 5, 2016 at 7:44 AM, Daniel Serpell wrote: > > Hi!, > > > > El Mon, Jan 04, 2016 at 06:33:59PM -0800, Ganesh Ajjanagadde escribio: > >> This exploits an approach based on the si

Re: [FFmpeg-devel] [PATCHv2] lavc/cbrt_tablegen: speed up tablegen

2016-01-06 Thread Daniel Serpell
Hi!, El Tue, Jan 05, 2016 at 09:01:40PM -0800, Ganesh Ajjanagadde escribio: > On Tue, Jan 5, 2016 at 10:46 AM, Ganesh Ajjanagadde wrote: > > On Tue, Jan 5, 2016 at 10:10 AM, Daniel Serpell wrote: > >> Hi!, > >> > >> El Tue, Jan 05, 2016 at 08:08:35AM -0800, G