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This commit is contained in:
Chris Cannam
2024-05-17 18:13:50 +01:00
parent 900e0a03d5
commit d0556ef478
1 changed files with 79 additions and 54 deletions
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133
src/test/TestLiveShifter.cpp
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@@ -29,6 +29,8 @@
#include "../../rubberband/RubberBandLiveShifter.h"
#include <iostream>
#include <fstream>
#include <string>
#include <cmath>
@@ -37,50 +39,61 @@ using namespace RubberBand;
using std::vector;
using std::cerr;
using std::endl;
using std::string;
using std::ofstream;
namespace tt = boost::test_tools;
BOOST_AUTO_TEST_SUITE(TestLiveShifter)
static void dump(const vector<float> &in,
static void dumpTo(string basename,
const vector<float> &data)
{
string dir = "/tmp";
string filename = dir + "/" + basename + ".csv";
ofstream file(filename, std::ios::out | std::ios::binary);
if (!file) {
cerr << "dumpTo: failed to open file \"" << filename << "\" for writing" << endl;
return;
}
file << "sample,V" << endl;
for (int i = 0; i < int(data.size()); ++i) {
file << i << "," << data[i] << endl;
}
}
static void dump(string prefix,
const vector<float> &in,
const vector<float> &out,
const vector<float> &expected,
int delay)
{
std::cerr << "dump: delay reported as " << delay << std::endl;
// The prefix is to allow grep on the test output
std::cout << "IN,sample,V" << std::endl;
for (int i = 0; i < int(in.size()); ++i) {
std::cout << "IN," << i << "," << in[i] << std::endl;
}
std::cout << "OUT,sample,V" << std::endl;
for (int i = 0; i < int(out.size()); ++i) {
std::cout << "OUT," << i << "," << out[i] << std::endl;
}
cerr << "dump: delay reported as " << delay << endl;
std::cout << "SHIFTED,sample,V" << std::endl;
if (prefix != "") {
prefix += "-";
}
dumpTo(prefix + "in", in);
dumpTo(prefix + "out", out);
dumpTo(prefix + "expected", expected);
vector<float> shifted;
vector<float> diff;
for (int i = 0; i + delay < int(out.size()); ++i) {
std::cout << "SHIFTED," << i << "," << out[i + delay] << std::endl;
}
std::cout << "EXPECTED,sample,V" << std::endl;
for (int i = 0; i < int(expected.size()); ++i) {
std::cout << "EXPECTED," << i << "," << expected[i] << std::endl;
}
std::cout << "DIFF,sample,V" << std::endl;
for (int i = 0; i + delay < int(expected.size()); ++i) {
std::cout << "DIFF," << i << "," << out[i + delay] - expected[i] << std::endl;
shifted.push_back(out[i + delay]);
diff.push_back(out[i + delay] - expected[i]);
}
dumpTo(prefix + "shifted", shifted);
dumpTo(prefix + "diff", diff);
}
static void check_sinusoid_unchanged(int n, int rate, float freq,
RubberBandLiveShifter::Options options,
bool printDebug)
string debugPrefix = {})
{
bool printDebug = (debugPrefix != "");
if (printDebug) {
RubberBandLiveShifter::setDefaultDebugLevel(2);
}
@@ -124,9 +137,9 @@ static void check_sinusoid_unchanged(int n, int rate, float freq,
float fout = out[delay + i];
float err = fabsf(fin - fout);
if (err > slackeps) {
std::cerr << "Error at index " << i << " exceeds slack eps "
<< slackeps << ": output " << fout << " - input "
<< fin << " = " << fout - fin << std::endl;
cerr << "Error at index " << i << " exceeds slack eps "
<< slackeps << ": output " << fout << " - input "
<< fin << " = " << fout - fin << endl;
BOOST_TEST(err < eps);
break;
}
@@ -137,9 +150,9 @@ static void check_sinusoid_unchanged(int n, int rate, float freq,
float fout = out[delay + i];
float err = fabsf(fin - fout);
if (err > eps) {
std::cerr << "Error at index " << i << " exceeds tight eps "
<< eps << ": output " << fout << " - input "
<< fin << " = " << fout - fin << std::endl;
cerr << "Error at index " << i << " exceeds tight eps "
<< eps << ": output " << fout << " - input "
<< fin << " = " << fout - fin << endl;
BOOST_TEST(err < eps);
break;
}
@@ -147,14 +160,16 @@ static void check_sinusoid_unchanged(int n, int rate, float freq,
if (printDebug) {
RubberBandLiveShifter::setDefaultDebugLevel(0);
dump(in, out, in, delay);
dump(debugPrefix, in, out, in, delay);
}
}
static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
RubberBandLiveShifter::Options options,
bool printDebug)
string debugPrefix = {})
{
bool printDebug = (debugPrefix != "");
if (printDebug) {
RubberBandLiveShifter::setDefaultDebugLevel(2);
}
@@ -201,9 +216,9 @@ static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
float fout = out[delay + i];
float err = fabsf(fin - fout);
if (err > slackeps) {
std::cerr << "Error at index " << i << " exceeds slack eps "
<< slackeps << ": output " << fout << " - expected "
<< fin << " = " << fout - fin << std::endl;
cerr << "Error at index " << i << " exceeds slack eps "
<< slackeps << ": output " << fout << " - expected "
<< fin << " = " << fout - fin << endl;
BOOST_TEST(err < eps);
break;
}
@@ -214,9 +229,9 @@ static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
float fout = out[delay + i];
float err = fabsf(fin - fout);
if (err > eps) {
std::cerr << "Error at index " << i << " exceeds tight eps "
<< eps << ": output " << fout << " - expected "
<< fin << " = " << fout - fin << std::endl;
cerr << "Error at index " << i << " exceeds tight eps "
<< eps << ": output " << fout << " - expected "
<< fin << " = " << fout - fin << endl;
BOOST_TEST(err < eps);
break;
}
@@ -224,43 +239,53 @@ static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
if (printDebug) {
RubberBandLiveShifter::setDefaultDebugLevel(0);
dump(in, out, expected, delay);
dump(debugPrefix, in, out, expected, delay);
}
}
BOOST_AUTO_TEST_CASE(sinusoid_unchanged)
{
int n = 20000;
check_sinusoid_unchanged(n, 44100, 440.f, 0, false);
check_sinusoid_unchanged(n, 48000, 260.f, 0, false);
check_sinusoid_unchanged(n, 44100, 440.f, 0);
check_sinusoid_unchanged(n, 48000, 260.f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_down_octave)
BOOST_AUTO_TEST_CASE(sinusoid_down_octave_440)
{
int n = 20000;
check_sinusoid_shifted(n, 44100, 440.f, 0.5f, 0, false);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0, false);
check_sinusoid_shifted(n, 44100, 440.f, 0.5f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_down_octave_260)
{
int n = 20000;
check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_down_2octave)
{
int n = 20000;
check_sinusoid_shifted(n, 44100, 440.f, 0.25f, 0, false);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0, false);
// check_sinusoid_shifted(n, 44100, 440.f, 0.25f, 0);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_up_octave)
BOOST_AUTO_TEST_CASE(sinusoid_up_octave_440)
{
int n = 20000;
check_sinusoid_shifted(n, 44100, 440.f, 2.0f, 0, false);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0, false);
check_sinusoid_shifted(n, 44100, 440.f, 2.0f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_up_octave_260)
{
int n = 20000;
check_sinusoid_shifted(n, 44100, 260.f, 2.0f, 0);
}
BOOST_AUTO_TEST_CASE(sinusoid_up_2octave)
{
int n = 20000;
check_sinusoid_shifted(n, 44100, 440.f, 4.0f, 0, false);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0, false);
// check_sinusoid_shifted(n, 44100, 440.f, 4.0f, 0, true);
// check_sinusoid_shifted(n, 48000, 260.f, 0.5f, 0);
}
BOOST_AUTO_TEST_SUITE_END()