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#include <sigc++/sigc++.h>
#include "interpolation-test.h"
CPPUNIT_TEST_SUITE_REGISTRATION( InterpolationTest );
using namespace std;
using namespace ARDOUR;
void
InterpolationTest::linearInterpolationTest ()
{
nframes_t result = 0;
cout << "\nLinear Interpolation Test\n";
cout << "\nSpeed: 1/3";
for (int i = 0; i < NUM_SAMPLES - 1024;) {
linear.set_speed (double(1.0)/double(3.0));
linear.set_target_speed (double(1.0)/double(3.0));
//printf ("Interpolate: input: %d, output: %d, i: %d\n", input + i, output + i, i);
result = linear.interpolate (0, 1024, input + i, output + i);
printf ("Result: %d\n", result);
//CPPUNIT_ASSERT_EQUAL ((uint32_t)((NUM_SAMPLES - 100) * interpolation.speed()), result);
i += result;
}
cout << "\nSpeed: 1.0";
linear.reset();
linear.set_speed (1.0);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES; i += INTERVAL) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 0.5";
linear.reset();
linear.set_speed (0.5);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 0.2";
linear.reset();
linear.set_speed (0.2);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 0.02";
linear.reset();
linear.set_speed (0.02);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 0.002";
linear.reset();
linear.set_speed (0.002);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES, input, output);
linear.speed();
printf("BOOM!: expexted: %d, result = %d\n", (nframes_t)(NUM_SAMPLES * linear.speed()), result);
CPPUNIT_ASSERT_EQUAL ((nframes_t)(NUM_SAMPLES * linear.speed()), result);
cout << "\nSpeed: 2.0";
linear.reset();
linear.set_speed (2.0);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES / 2, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 2 * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 2; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 10.0";
linear.set_speed (10.0);
linear.set_target_speed (linear.speed());
result = linear.interpolate (0, NUM_SAMPLES / 10, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 10 * linear.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 10; i += (INTERVAL / linear.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
/*
for (int i=0; i < NUM_SAMPLES; ++i) {
cout << "input[" << i << "] = " << input[i] << " output[" << i << "] = " << output[i] << endl;
}
*/
}
void
InterpolationTest::splineInterpolationTest ()
{
nframes_t result = 0;
cout << "\nspline Interpolation Test\n";
cout << "\nSpeed: 1/2" << endl;
spline.reset();
spline.set_speed (0.5);
int one_period = 1024;
/*
for (int i = 0; 2 * i < NUM_SAMPLES - one_period;) {
result = spline.interpolate (0, one_period, input + i, output + int(2*i));
i += result;
}
for (int i=0; i < NUM_SAMPLES - one_period; ++i) {
//cout << "output[" << i << "] = " << output[i] << endl;
if (i % 200 == 0) { CPPUNIT_ASSERT_EQUAL (double(1.0), double(output[i])); }
else if (i % 2 == 0) { CPPUNIT_ASSERT_EQUAL (double(0.0), double(output[i])); }
}
*/
/*
// square function
for (int i = 0; i < NUM_SAMPLES; ++i) {
if (i % INTERVAL/8 < INTERVAL/16 ) {
input[i] = 1.0f;
} else {
input[i] = 0.0f;
}
output[i] = 0.0f;
}
*/
cout << "\nSpeed: 1/60" << endl;
spline.reset();
spline.set_speed (1.0/60.0);
one_period = 8192;
for (int i = 0; 60 * i < NUM_SAMPLES - one_period;) {
result = spline.interpolate (0, one_period, input + i, output + int(60*i));
printf ("Result: %d\n", result);
i += result;
}
for (int i=0; i < NUM_SAMPLES - one_period; ++i) {
cout << "input[" << i << "] = " << input[i] << " output[" << i << "] = " << output[i] << endl;
//if (i % 333 == 0) { CPPUNIT_ASSERT_EQUAL (double(1.0), double(output[i])); }
//else if (i % 2 == 0) { CPPUNIT_ASSERT_EQUAL (double(0.0), double(output[i])); }
}
}
void
InterpolationTest::libSamplerateInterpolationTest ()
{
nframes_t result;
cout << "\nLibSamplerate Interpolation Test\n";
/*
cout << "\nSpeed: 1.0";
interpolation.set_speed (1.0);
for (int i = 0; i < NUM_SAMPLES;) {
interpolation.set_speed (1.0);
result = interpolation.interpolate (0, INTERVAL/10, input + i, output + i);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(INTERVAL/10 * interpolation.speed()), result);
i += result;
}
for (int i = 0; i < NUM_SAMPLES; i += INTERVAL) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i+1]);
}
*/
cout << "\nSpeed: 0.5";
for (int i = 0; i < NUM_SAMPLES;) {
interpolation.set_speed (0.5);
//printf ("Interpolate: input: %d, output: %d, i: %d\n", input + i, output + i, i);
result = interpolation.interpolate (0, NUM_SAMPLES - 100, input + i, output + i);
printf ("Result: %d\n", result);
//CPPUNIT_ASSERT_EQUAL ((uint32_t)((NUM_SAMPLES - 100) * interpolation.speed()), result);
//i += result;
break;
}
for (int i=0; i < NUM_SAMPLES; ++i) {
cout << "input[" << i << "] = " << input[i] << " output[" << i << "] = " << output[i] << endl;
}
cout << "\nSpeed: 0.2";
interpolation.set_speed (0.2);
result = interpolation.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * interpolation.speed()), result);
cout << "\nSpeed: 0.02";
interpolation.set_speed (0.02);
result = interpolation.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * interpolation.speed()), result);
cout << "\nSpeed: 0.002";
interpolation.set_speed (0.002);
result = interpolation.interpolate (0, NUM_SAMPLES, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES * interpolation.speed()), result);
cout << "\nSpeed: 2.0";
interpolation.set_speed (2.0);
result = interpolation.interpolate (0, NUM_SAMPLES / 2, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 2 * interpolation.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 2; i += (INTERVAL / interpolation.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
cout << "\nSpeed: 10.0";
interpolation.set_speed (10.0);
result = interpolation.interpolate (0, NUM_SAMPLES / 10, input, output);
CPPUNIT_ASSERT_EQUAL ((uint32_t)(NUM_SAMPLES / 10 * interpolation.speed()), result);
for (int i = 0; i < NUM_SAMPLES / 10; i += (INTERVAL / interpolation.speed() +0.5)) {
CPPUNIT_ASSERT_EQUAL (1.0f, output[i]);
}
/*
for (int i=0; i < NUM_SAMPLES; ++i) {
cout << "input[" << i << "] = " << input[i] << " output[" << i << "] = " << output[i] << endl;
}
*/
}
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