ref: ed1deac8ca3b75cdccddf62388f1f4164ecc1578
parent: 8f68dfbce6a384264ae9121a30aa359fc7c0fcd8
author: Paul Brossier <piem@piem.org>
date: Sat Mar 2 17:54:28 EST 2013
tests/src/temporal/: improve test examples
--- a/tests/src/temporal/test-biquad.c
+++ b/tests/src/temporal/test-biquad.c
@@ -1,15 +1,31 @@
#include <aubio.h>
-int main(){- /* allocate some memory */
- uint_t win_s = 1024; /* window size */
- fvec_t * in = new_fvec (win_s); /* input buffer */
- aubio_filter_t * o = new_aubio_filter_biquad(0.3,0.2,0.1,0.2,0.3);
+int main () {+ uint_t win_s = 64; // window size
- aubio_filter_do_filtfilt(o,in,in);
- aubio_filter_do(o,in);
+ // create biquad filter with `b0`, `b1`, `b2`, `a1`, `a2`
+ aubio_filter_t * o = new_aubio_filter_biquad(0.3,0.2,0.1,0.2,0.3);
- del_aubio_filter(o);
- del_fvec(in);
- return 0;
+ fvec_t * in_vec = new_fvec (win_s); // input buffer
+ fvec_t * tmp_vec = new_fvec (win_s); // temporary buffer
+ fvec_t * out_vec = new_fvec (win_s); // output buffer
+
+ uint_t times = 100;
+ while ( times-- ) {+ // copy to out, then filter out
+ aubio_filter_do_outplace(o, in_vec, out_vec);
+ // in-place filtering
+ aubio_filter_do(o, in_vec);
+ // in-place filtering
+ aubio_filter_do_filtfilt(o, in_vec, out_vec);
+ fvec_print(in_vec);
+ }
+
+ // memory clean-up, one for each new
+ del_aubio_filter(o);
+ del_fvec(in_vec);
+ del_fvec(tmp_vec);
+ del_fvec(out_vec);
+
+ return 0;
}