hi i am new to android-ndk so far i worked with all sample applications in android-ndk,now i am trying to port fftw3 library in android, can you plz suggest me any tutorial
I currently solving similar problem, but without significant results.
As I can recommend use anther well tested library like JTransforms (java pretty fast) or find Badlogic KissFFT implementation (JNI, about 2 times faster, numerical unstable).