mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-17 13:56:32 +00:00
352 lines
6.2 KiB
C
352 lines
6.2 KiB
C
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <resample.h>
|
|
|
|
#define AMP 16000
|
|
#define I_RATE 48000
|
|
#define O_RATE 44100
|
|
//#define O_RATE 24000
|
|
|
|
//#define test_func(x) 1
|
|
//#define test_func(x) sin(2*M_PI*(x)*10)
|
|
//#define test_func(x) sin(2*M_PI*(x)*(x)*1000)
|
|
#define test_func(x) sin(2*M_PI*(x)*(x)*12000)
|
|
|
|
short i_buf[I_RATE*2*2];
|
|
short o_buf[O_RATE*2*2];
|
|
|
|
static int i_offset;
|
|
static int o_offset;
|
|
|
|
FILE *out;
|
|
|
|
void test_res1(void);
|
|
void test_res2(void);
|
|
void test_res3(void);
|
|
void test_res4(void);
|
|
void test_res5(void);
|
|
void test_res6(void);
|
|
void test_res7(void);
|
|
|
|
int main(int argc,char *argv[])
|
|
{
|
|
out = fopen("out","w");
|
|
|
|
test_res7();
|
|
|
|
return 0;
|
|
}
|
|
|
|
void *get_buffer(void *priv, unsigned int size)
|
|
{
|
|
void *ret;
|
|
ret = ((void *)o_buf) + o_offset;
|
|
o_offset += size;
|
|
return ret;
|
|
}
|
|
|
|
struct timeval start_time;
|
|
void start_timer(void)
|
|
{
|
|
gettimeofday(&start_time,NULL);
|
|
//printf("start %ld.%06ld\n",start_time.tv_sec,start_time.tv_usec);
|
|
}
|
|
|
|
void end_timer(void)
|
|
{
|
|
struct timeval end_time;
|
|
double diff;
|
|
|
|
gettimeofday(&end_time,NULL);
|
|
//printf("end %ld.%06ld\n",end_time.tv_sec,end_time.tv_usec);
|
|
diff = (end_time.tv_sec - start_time.tv_sec) +
|
|
1e-6*(end_time.tv_usec - start_time.tv_usec);
|
|
|
|
printf("time %g\n",diff);
|
|
|
|
}
|
|
|
|
void test_res1(void)
|
|
{
|
|
resample_t *r;
|
|
int i;
|
|
double sum10k,sum22k;
|
|
double f;
|
|
int n10k,n22k;
|
|
double x;
|
|
|
|
for(i=0;i<I_RATE;i++){
|
|
i_buf[i*2+0] = rint(AMP * test_func((double)i/I_RATE));
|
|
//i_buf[i*2+1] = rint(AMP * test_func((double)i/I_RATE));
|
|
i_buf[i*2+1] = (i<1000)?AMP:0;
|
|
}
|
|
|
|
r = malloc(sizeof(resample_t));
|
|
memset(r,0,sizeof(resample_t));
|
|
|
|
r->i_rate = I_RATE;
|
|
r->o_rate = O_RATE;
|
|
//r->method = RESAMPLE_SINC_SLOW;
|
|
r->method = RESAMPLE_SINC;
|
|
r->channels = 2;
|
|
//r->verbose = 1;
|
|
r->filter_length = 64;
|
|
r->get_buffer = get_buffer;
|
|
|
|
resample_init(r);
|
|
|
|
start_timer();
|
|
#define blocked
|
|
#ifdef blocked
|
|
for(i=0;i+256<I_RATE;i+=256){
|
|
resample_scale(r,i_buf+i*2,256*2*2);
|
|
}
|
|
if(I_RATE-i){
|
|
resample_scale(r,i_buf+i*2,(I_RATE-i)*2*2);
|
|
}
|
|
#else
|
|
resample_scale(r,i_buf,I_RATE*2*2);
|
|
#endif
|
|
end_timer();
|
|
|
|
for(i=0;i<O_RATE;i++){
|
|
f = AMP*test_func((double)i/O_RATE);
|
|
//f = rint(AMP*test_func((double)i/O_RATE));
|
|
fprintf(out,"%d %d %d %g %g\n",i,
|
|
o_buf[2*i+0],o_buf[2*i+1],
|
|
f,o_buf[2*i+0]-f);
|
|
}
|
|
|
|
sum10k=0;
|
|
sum22k=0;
|
|
n10k=0;
|
|
n22k=0;
|
|
for(i=0;i<O_RATE;i++){
|
|
f = AMP*test_func((double)i/O_RATE);
|
|
//f = rint(AMP*test_func((double)i/O_RATE));
|
|
x = o_buf[2*i+0]-f;
|
|
if(((0.5*i)/O_RATE*I_RATE)<10000){
|
|
sum10k += x*x;
|
|
n10k++;
|
|
}
|
|
if(((0.5*i)/O_RATE*I_RATE)<22050){
|
|
sum22k += x*x;
|
|
n22k++;
|
|
}
|
|
}
|
|
printf("average error 10k=%g 22k=%g\n",
|
|
sqrt(sum10k/n10k),
|
|
sqrt(sum22k/n22k));
|
|
}
|
|
|
|
|
|
void test_res2(void)
|
|
{
|
|
functable_t *t;
|
|
int i;
|
|
double x;
|
|
double f1,f2;
|
|
|
|
t = malloc(sizeof(*t));
|
|
memset(t,0,sizeof(*t));
|
|
|
|
t->start = -50.0;
|
|
t->offset = 1;
|
|
t->len = 100;
|
|
|
|
t->func_x = functable_sinc;
|
|
t->func_dx = functable_dsinc;
|
|
|
|
functable_init(t);
|
|
|
|
for(i=0;i<1000;i++){
|
|
x = -50.0 + 0.1 * i;
|
|
f1 = functable_sinc(NULL,x);
|
|
f2 = functable_eval(t,x);
|
|
fprintf(out,"%d %g %g %g\n",i,f1,f2,f1-f2);
|
|
}
|
|
}
|
|
|
|
void test_res3(void)
|
|
{
|
|
functable_t *t;
|
|
int i;
|
|
double x;
|
|
double f1,f2;
|
|
int n = 1;
|
|
|
|
t = malloc(sizeof(*t));
|
|
memset(t,0,sizeof(*t));
|
|
|
|
t->start = -50.0;
|
|
t->offset = 1.0 / n;
|
|
t->len = 100 * n;
|
|
|
|
t->func_x = functable_sinc;
|
|
t->func_dx = functable_dsinc;
|
|
|
|
t->func2_x = functable_window_std;
|
|
t->func2_dx = functable_window_dstd;
|
|
|
|
t->scale = 1.0;
|
|
t->scale2 = 1.0 / (M_PI * 16);
|
|
|
|
functable_init(t);
|
|
|
|
for(i=0;i<1000 * n;i++){
|
|
x = -50.0 + 0.1/n * i;
|
|
f1 = functable_sinc(NULL,t->scale * x) *
|
|
functable_window_std(NULL,t->scale2 * x);
|
|
f2 = functable_eval(t,x);
|
|
fprintf(out,"%d %g %g %g\n",i,f1,f2,f2-f1);
|
|
}
|
|
}
|
|
|
|
double sinc_poly(double x)
|
|
{
|
|
#define INV3FAC 1.66666666666666666e-1
|
|
#define INV5FAC 8.33333333333333333e-3
|
|
#define INV7FAC 1.984126984e-4
|
|
#define INV9FAC 2.755731922e-6
|
|
#define INV11FAC 2.505210839e-8
|
|
double x2 = x * x;
|
|
|
|
return 1
|
|
- x2 * INV3FAC
|
|
+ x2 * x2 * INV5FAC
|
|
- x2 * x2 * x2 * INV7FAC;
|
|
//+ x2 * x2 * x2 * x2 * INV9FAC
|
|
//- x2 * x2 * x2 * x2 * x2 * INV11FAC;
|
|
}
|
|
|
|
void test_res4(void)
|
|
{
|
|
int i;
|
|
double x,f1,f2;
|
|
|
|
for(i=1;i<100;i++){
|
|
x = 0.01 * i;
|
|
f1 = 1 - sin(x)/x;
|
|
f2 = 1 - sinc_poly(x);
|
|
|
|
fprintf(out,"%g %.20g %.20g %.20g\n",x,f1,f2,f2-f1);
|
|
}
|
|
}
|
|
|
|
|
|
void test_res5(void)
|
|
{
|
|
int i;
|
|
double sum;
|
|
|
|
start_timer();
|
|
sum = 0;
|
|
for(i=0;i<I_RATE;i++){
|
|
sum += i_buf[i*2];
|
|
}
|
|
end_timer();
|
|
i_buf[0] = sum;
|
|
}
|
|
|
|
|
|
void short_to_double(double *d,short *x) { *d = *x; }
|
|
void short_to_float(float *f,short *x) { *f = *x; }
|
|
void float_to_double(double *f,float *x) { *f = *x; }
|
|
void double_to_short(short *f,double *x) { *f = *x; }
|
|
|
|
double res6_tmp[1000];
|
|
|
|
void test_res6(void)
|
|
{
|
|
int i;
|
|
|
|
for(i=0;i<I_RATE;i++){
|
|
i_buf[i] = rint(AMP * test_func((double)i/I_RATE));
|
|
}
|
|
|
|
conv_double_short_ref(res6_tmp,i_buf,1000);
|
|
for(i=0;i<1000;i++){
|
|
res6_tmp[i] *= 3.0;
|
|
}
|
|
conv_short_double_ppcasm(o_buf,res6_tmp,1000);
|
|
|
|
for(i=0;i<1000;i++){
|
|
fprintf(out,"%d %d %g %d\n",i,i_buf[i],res6_tmp[i],o_buf[i]);
|
|
}
|
|
}
|
|
|
|
void test_res7(void)
|
|
{
|
|
resample_t *r;
|
|
int i;
|
|
double sum10k,sum22k;
|
|
double f;
|
|
int n10k,n22k;
|
|
double x;
|
|
|
|
for(i=0;i<I_RATE;i++){
|
|
i_buf[i] = rint(AMP * test_func((double)i/I_RATE));
|
|
}
|
|
|
|
r = malloc(sizeof(resample_t));
|
|
memset(r,0,sizeof(resample_t));
|
|
|
|
r->i_rate = I_RATE;
|
|
r->o_rate = O_RATE;
|
|
//r->method = RESAMPLE_SINC_SLOW;
|
|
r->method = RESAMPLE_SINC;
|
|
r->channels = 1;
|
|
//r->verbose = 1;
|
|
r->filter_length = 64;
|
|
r->get_buffer = get_buffer;
|
|
|
|
resample_init(r);
|
|
|
|
start_timer();
|
|
#define blocked
|
|
#ifdef blocked
|
|
for(i=0;i+256<I_RATE;i+=256){
|
|
resample_scale(r,i_buf+i,256*2);
|
|
}
|
|
if(I_RATE-i){
|
|
resample_scale(r,i_buf+i,(I_RATE-i)*2);
|
|
}
|
|
#else
|
|
resample_scale(r,i_buf,I_RATE*2);
|
|
#endif
|
|
end_timer();
|
|
|
|
for(i=0;i<O_RATE;i++){
|
|
f = AMP*test_func((double)i/O_RATE);
|
|
//f = rint(AMP*test_func((double)i/O_RATE));
|
|
fprintf(out,"%d %d %d %g %g\n",i,
|
|
o_buf[i],0,
|
|
f,o_buf[i]-f);
|
|
}
|
|
|
|
sum10k=0;
|
|
sum22k=0;
|
|
n10k=0;
|
|
n22k=0;
|
|
for(i=0;i<O_RATE;i++){
|
|
f = AMP*test_func((double)i/O_RATE);
|
|
//f = rint(AMP*test_func((double)i/O_RATE));
|
|
x = o_buf[i]-f;
|
|
if(((0.5*i)/O_RATE*I_RATE)<10000){
|
|
sum10k += x*x;
|
|
n10k++;
|
|
}
|
|
if(((0.5*i)/O_RATE*I_RATE)<22050){
|
|
sum22k += x*x;
|
|
n22k++;
|
|
}
|
|
}
|
|
printf("average error 10k=%g 22k=%g\n",
|
|
sqrt(sum10k/n10k),
|
|
sqrt(sum22k/n22k));
|
|
}
|
|
|