On 3/25/16, Ganesh Ajjanagadde <gajja...@gmail.com> wrote: > On Fri, Mar 25, 2016 at 9:36 AM, Nicolas George <geo...@nsup.org> wrote: >> Le sextidi 6 germinal, an CCXXIV, Ganesh Ajjanagadde a ecrit : >>> Depends on if it is small or not. Yes, in many codecs, FFT's are short >>> length ones, e.g 512. However, on long lengths, e.g 8192+, as seen >>> from the benches, there are sometimes 2x variations at the moment. >> >> And how much of the actual total decoding is spent in the FFT? Even a *50 >> speedup would be useless if it is for a function that never amounts to >> more >> than 0,01% of the actual time. The FFT is probably not that negligible, >> but >> this is not a *50 speedup either, and I have no idea how frequent are long >> lengths. > > Paul had some interest in 2^17 fft's at a point.
And it was done in avfft. So feel free to improve our avfft instead. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
