On 11.03.2016, at 05:16, Ganesh Ajjanagadde <gajja...@gmail.com> wrote: > Code taken from the Julia project, licensed under MIT: > https://github.com/JuliaLang/julia/blob/master/base/random.jl, in turn > derived from: "The Ziggurat Method for generating random variables" - > Marsaglia and Tsang. > > Paper and reference code: http://www.jstatsoft.org/v05/i08/. This is > well known to be the fastest method empirically for generating normal random > variables. Note that there are a large number of implementations with > various tunings, this was one of the simpler ones and also has a friendly > license.
I absolutely can't see how this could be the fastest considering it uses the rather slow av_lfg_get twice, unless you only mean the part of getting floats in a certain distribution and not the actual randomness. I asked a long time ago for the decoder, but never got an answer why we use lfg and not a much faster lcg. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
