90 lines
2.6 KiB
C
Executable file
90 lines
2.6 KiB
C
Executable file
/* Copyright (c) 2008-2011 Xiph.Org Foundation
|
|
Written by Jean-Marc Valin */
|
|
/*
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
|
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#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;
|
|
}
|