diff options
Diffstat (limited to 'celt/tests/test_unit_rotation.c')
-rw-r--r-- | celt/tests/test_unit_rotation.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/celt/tests/test_unit_rotation.c b/celt/tests/test_unit_rotation.c new file mode 100644 index 0000000..29082b6 --- /dev/null +++ b/celt/tests/test_unit_rotation.c @@ -0,0 +1,63 @@ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifndef CUSTOM_MODES +#define CUSTOM_MODES +#endif + +#define CELT_C + +#include <stdio.h> +#include <stdlib.h> +#include "vq.c" +#include "cwrs.c" +#include "entcode.c" +#include "entenc.c" +#include "entdec.c" +#include "mathops.c" +#include "bands.h" +#include <math.h> +#define MAX_SIZE 100 + +int ret=0; +void test_rotation(int N, int K) +{ + int i; + double err = 0, ener = 0, snr, snr0; + opus_val16 x0[MAX_SIZE]; + opus_val16 x1[MAX_SIZE]; + for (i=0;i<N;i++) + x1[i] = x0[i] = rand()%32767-16384; + exp_rotation(x1, N, 1, 1, K, SPREAD_NORMAL); + for (i=0;i<N;i++) + { + err += (x0[i]-(double)x1[i])*(x0[i]-(double)x1[i]); + ener += x0[i]*(double)x0[i]; + } + snr0 = 20*log10(ener/err); + err = ener = 0; + exp_rotation(x1, N, -1, 1, K, SPREAD_NORMAL); + for (i=0;i<N;i++) + { + err += (x0[i]-(double)x1[i])*(x0[i]-(double)x1[i]); + ener += x0[i]*(double)x0[i]; + } + snr = 20*log10(ener/err); + printf ("SNR for size %d (%d pulses) is %f (was %f without inverse)\n", N, K, snr, snr0); + if (snr < 60 || snr0 > 20) + { + fprintf(stderr, "FAIL!\n"); + ret = 1; + } +} + +int main(void) +{ + ALLOC_STACK; + test_rotation(15, 3); + test_rotation(23, 5); + test_rotation(50, 3); + test_rotation(80, 1); + return ret; +} |