nzjrs

all: test libtest.so testmodule

libtest.so: libtest.c
	$(CC) -Wall -g -fPIC -shared -o $@ $? -lc

test: test_main.c libtest.o
	$(CC) -o $@ $?

testmodule: testmodule.c
	python setup.py build

nicolamontecchio

#let's say f_TI is something like
#void blabla(int *data, int data_length);
#then

f_TI.argtypes = [ctypes.POINTER(ctypes.c_int), ctypes.c_int]
lll = [4,7,2,8]
lll_c = (ctypes.c_int * len(lll))(*lll)
f_TI(lll_c, len(lll))

Tomwi

/* fix_fft.c - Fixed-point in-place Fast Fourier Transform  */
/*
  All data are fixed-point short integers, in which -32768
  to +32768 represent -1.0 to +1.0 respectively. Integer
  arithmetic is used for speed, instead of the more natural
  floating-point.

  For the forward FFT (time -> freq), fixed scaling is
  performed to prevent arithmetic overflow, and to map a 0dB
  sine/cosine wave (i.e. amplitude = 32767) to two -6dB freq