what is the fastest FFT library for iOS/Android ARM devices?

android ios arm fft neon
Anthony Blake picture Anthony Blake · Nov 3, 2011 · Viewed 17.8k times · Source

What is the fastest FFT library for iOS/Android ARM devices? And what library to people typically use on iOS/Android platforms? I'm guessing vDSP is the library most frequently used on iOS.

EDIT: my code is at http://anthonix.com/ffts and uses the BSD license. It runs on Android and iOS, and it is faster than libav, FFTW and vDSP.

EDIT2: if anyone can provide access to a POWER7 machine (or other machines) please email me. It would be much appreciated.

Cheers,

Answer

Martin Mogensen picture Martin Mogensen · Nov 25, 2011

Here is a page benchmarking different fft algorithms on ARM:

http://pmeerw.dyndns.org/blog/programming/neon3.html

From that page the fastest FFT implementation is LibAv, which have a Neon optimized fft http://libav.org/

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