summaryrefslogtreecommitdiffstats
path: root/gst-libs/gst/resample/test.c
diff options
context:
space:
mode:
Diffstat (limited to 'gst-libs/gst/resample/test.c')
-rw-r--r--gst-libs/gst/resample/test.c375
1 files changed, 0 insertions, 375 deletions
diff --git a/gst-libs/gst/resample/test.c b/gst-libs/gst/resample/test.c
deleted file mode 100644
index d6785aef..00000000
--- a/gst-libs/gst/resample/test.c
+++ /dev/null
@@ -1,375 +0,0 @@
-
-#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));
-}
generated by cgit v1.2.1 (git 2.18.0) at 2025-01-14 11:35:27 +0000