On Tue, Mar 26, 2024 at 6:07 PM Antoine Soulier <asoul...@google.com> wrote:
> What do you mean by sub-optimal? > It's stacked by prime factors, and unrolled for FFT3 and FF5. > The butterfly implementations of FFT3 and FF5, gives me slightly slower > computation. FFT5 is done first, so it takes advantage of sin()/cos() > values of 0 or 1. > There are also no reordering steps (this stage is completely removed), but > cannot run in-place. > Benchmarks I made show that it runs slightly faster. > Compared with what? Where is at least x86 SIMD for that MDCT? > > On Tue, Mar 26, 2024 at 9:59 AM Paul B Mahol <one...@gmail.com> wrote: > >> >> Isn't this using sub-optimal MDCT implementation? >> > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
