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/* See COPYING file for copyright and license details. */
#include <math.h>
#include <sndfile.h>
#include <stdlib.h>
#include <string.h>
#include "ebur128.h"
double test_global_loudness(const char* filename, ebur128_state** out_state) {
SF_INFO file_info;
SNDFILE* file;
sf_count_t nr_frames_read;
ebur128_state* st = NULL;
double gated_loudness;
double* buffer;
memset(&file_info, '\0', sizeof(file_info));
file = sf_open(filename, SFM_READ, &file_info);
if (!file) {
fprintf(stderr, "Could not open file %s!\n", filename);
return 0.0;
}
st = ebur128_init((unsigned) file_info.channels,
(unsigned) file_info.samplerate, EBUR128_MODE_I);
if (file_info.channels == 5) {
ebur128_set_channel(st, 0, EBUR128_LEFT);
ebur128_set_channel(st, 1, EBUR128_RIGHT);
ebur128_set_channel(st, 2, EBUR128_CENTER);
ebur128_set_channel(st, 3, EBUR128_LEFT_SURROUND);
ebur128_set_channel(st, 4, EBUR128_RIGHT_SURROUND);
}
buffer = (double*) malloc(st->samplerate * st->channels * sizeof(double));
while ((nr_frames_read =
sf_readf_double(file, buffer, (sf_count_t) st->samplerate))) {
ebur128_add_frames_double(st, buffer, (size_t) nr_frames_read);
}
ebur128_loudness_global(st, &gated_loudness);
*out_state = st;
free(buffer);
buffer = NULL;
if (sf_close(file)) {
fprintf(stderr, "Could not close input file!\n");
}
return gated_loudness;
}
double test_loudness_range(const char* filename) {
SF_INFO file_info;
SNDFILE* file;
sf_count_t nr_frames_read;
ebur128_state* st = NULL;
double loudness_range;
double* buffer;
memset(&file_info, '\0', sizeof(file_info));
file = sf_open(filename, SFM_READ, &file_info);
if (!file) {
fprintf(stderr, "Could not open file %s!\n", filename);
return 0.0;
}
st = ebur128_init((unsigned) file_info.channels,
(unsigned) file_info.samplerate, EBUR128_MODE_LRA);
if (file_info.channels == 5) {
ebur128_set_channel(st, 0, EBUR128_LEFT);
ebur128_set_channel(st, 1, EBUR128_RIGHT);
ebur128_set_channel(st, 2, EBUR128_CENTER);
ebur128_set_channel(st, 3, EBUR128_LEFT_SURROUND);
ebur128_set_channel(st, 4, EBUR128_RIGHT_SURROUND);
}
buffer = (double*) malloc(st->samplerate * st->channels * sizeof(double));
while ((nr_frames_read =
sf_readf_double(file, buffer, (sf_count_t) st->samplerate))) {
ebur128_add_frames_double(st, buffer, (size_t) nr_frames_read);
}
ebur128_loudness_range(st, &loudness_range);
/* clean up */
ebur128_destroy(&st);
free(buffer);
buffer = NULL;
if (sf_close(file)) {
fprintf(stderr, "Could not close input file!\n");
}
return loudness_range;
}
double test_true_peak(const char* filename) {
SF_INFO file_info;
SNDFILE* file;
sf_count_t nr_frames_read;
int i;
ebur128_state* st = NULL;
double true_peak;
double max_true_peak = -HUGE_VAL;
double* buffer;
memset(&file_info, '\0', sizeof(file_info));
file = sf_open(filename, SFM_READ, &file_info);
if (!file) {
fprintf(stderr, "Could not open file %s!\n", filename);
return 0.0;
}
st = ebur128_init((unsigned) file_info.channels,
(unsigned) file_info.samplerate, EBUR128_MODE_TRUE_PEAK);
if (file_info.channels == 5) {
ebur128_set_channel(st, 0, EBUR128_LEFT);
ebur128_set_channel(st, 1, EBUR128_RIGHT);
ebur128_set_channel(st, 2, EBUR128_CENTER);
ebur128_set_channel(st, 3, EBUR128_LEFT_SURROUND);
ebur128_set_channel(st, 4, EBUR128_RIGHT_SURROUND);
}
buffer = (double*) malloc(st->samplerate * st->channels * sizeof(double));
while ((nr_frames_read =
sf_readf_double(file, buffer, (sf_count_t) st->samplerate))) {
ebur128_add_frames_double(st, buffer, (size_t) nr_frames_read);
}
for (i = 0; i < file_info.channels; i++) {
ebur128_true_peak(st, (unsigned) i, &true_peak);
if (true_peak > max_true_peak)
max_true_peak = true_peak;
}
/* clean up */
ebur128_destroy(&st);
free(buffer);
buffer = NULL;
if (sf_close(file)) {
fprintf(stderr, "Could not close input file!\n");
}
return 20 * log10(max_true_peak);
}
double test_max_momentary(const char* filename) {
SF_INFO file_info;
SNDFILE* file;
sf_count_t nr_frames_read;
sf_count_t total_frames_read = 0;
ebur128_state* st = NULL;
double momentary;
double max_momentary = -HUGE_VAL;
double* buffer;
memset(&file_info, '\0', sizeof(file_info));
file = sf_open(filename, SFM_READ, &file_info);
if (!file) {
fprintf(stderr, "Could not open file %s!\n", filename);
return 0.0;
}
st = ebur128_init((unsigned) file_info.channels,
(unsigned) file_info.samplerate, EBUR128_MODE_M);
if (file_info.channels == 5) {
ebur128_set_channel(st, 0, EBUR128_LEFT);
ebur128_set_channel(st, 1, EBUR128_RIGHT);
ebur128_set_channel(st, 2, EBUR128_CENTER);
ebur128_set_channel(st, 3, EBUR128_LEFT_SURROUND);
ebur128_set_channel(st, 4, EBUR128_RIGHT_SURROUND);
}
/* 10 ms buffer/ 100 Hz refresh rate as 10 Hz refresh rate fails on several
* tests */
buffer =
(double*) malloc(st->samplerate / 100 * st->channels * sizeof(double));
while ((nr_frames_read = sf_readf_double(
file, buffer, (sf_count_t) st->samplerate / 100))) {
ebur128_add_frames_double(st, buffer, (size_t) nr_frames_read);
total_frames_read += nr_frames_read;
/* invalid results before the first 400 ms */
if (total_frames_read >= 4 * st->samplerate / 10) {
ebur128_loudness_momentary(st, &momentary);
if (momentary > max_momentary)
max_momentary = momentary;
}
}
/* clean up */
ebur128_destroy(&st);
free(buffer);
buffer = NULL;
if (sf_close(file)) {
fprintf(stderr, "Could not close input file!\n");
}
return max_momentary;
}
double test_max_shortterm(const char* filename) {
SF_INFO file_info;
SNDFILE* file;
sf_count_t nr_frames_read;
sf_count_t total_frames_read = 0;
ebur128_state* st = NULL;
double shortterm;
double max_shortterm = -HUGE_VAL;
double* buffer;
memset(&file_info, '\0', sizeof(file_info));
file = sf_open(filename, SFM_READ, &file_info);
if (!file) {
fprintf(stderr, "Could not open file %s!\n", filename);
return 0.0;
}
st = ebur128_init((unsigned) file_info.channels,
(unsigned) file_info.samplerate, EBUR128_MODE_S);
if (file_info.channels == 5) {
ebur128_set_channel(st, 0, EBUR128_LEFT);
ebur128_set_channel(st, 1, EBUR128_RIGHT);
ebur128_set_channel(st, 2, EBUR128_CENTER);
ebur128_set_channel(st, 3, EBUR128_LEFT_SURROUND);
ebur128_set_channel(st, 4, EBUR128_RIGHT_SURROUND);
}
/* 100 ms buffer / 10 Hz refresh rate */
buffer =
(double*) malloc(st->samplerate / 10 * st->channels * sizeof(double));
while ((nr_frames_read = sf_readf_double(file, buffer,
(sf_count_t) st->samplerate / 10))) {
ebur128_add_frames_double(st, buffer, (size_t) nr_frames_read);
total_frames_read += nr_frames_read;
/* invalid results before the first 3 s */
if (total_frames_read >= 3 * st->samplerate) {
ebur128_loudness_shortterm(st, &shortterm);
if (shortterm > max_shortterm)
max_shortterm = shortterm;
}
}
/* clean up */
ebur128_destroy(&st);
free(buffer);
buffer = NULL;
if (sf_close(file)) {
fprintf(stderr, "Could not close input file!\n");
}
return max_shortterm;
}
double gr[] = { -23.0, -33.0, -23.0, -23.0, -23.0, -23.0, -23.0, -23.0, -23.0 };
double gre[] = { -2.2953556442089987e+01, -3.2959860397340044e+01,
-2.2995899818255047e+01, -2.3035918615414182e+01,
-2.2949997446096436e+01, -2.3017157781104373e+01,
-2.3017157781104373e+01, -2.2980242495081757e+01,
-2.3009077718930545e+01 };
double lra[] = { 10.0, 5.0, 20.0, 15.0, 5.0, 15.0 };
double lrae[] = { 1.0001105488329134e+01, 4.9993734051522178e+00,
1.9995064067783115e+01, 1.4999273937723455e+01,
4.9747585878473721e+00, 1.4993650849123316e+01 };
int main() {
double result;
ebur128_state* states[9] = { 0 };
int i;
fprintf(stderr, "Note: the tests do not have to pass with EXACT_PASSED.\n"
"Passing these tests does not mean that the library is "
"100%% EBU R 128 compliant!\n\n");
#define TEST_GLOBAL_LOUDNESS(filename, i, state_array) \
result = test_global_loudness(filename, &state_array[i]); \
if (result == result) { \
printf("%s, %s - %s: %1.16e\n", \
(result <= gr[i] + 0.1 && result >= gr[i] - 0.1) ? "PASSED" \
: "FAILED", \
(result == gre[i]) ? "EXACT_PASSED" : "EXACT_FAILED", filename, \
result); \
}
TEST_GLOBAL_LOUDNESS("seq-3341-1-16bit.wav", 0, states)
TEST_GLOBAL_LOUDNESS("seq-3341-2-16bit.wav", 1, states)
TEST_GLOBAL_LOUDNESS("seq-3341-3-16bit-v02.wav", 2, states)
TEST_GLOBAL_LOUDNESS("seq-3341-4-16bit-v02.wav", 3, states)
TEST_GLOBAL_LOUDNESS("seq-3341-5-16bit-v02.wav", 4, states)
TEST_GLOBAL_LOUDNESS("seq-3341-6-5channels-16bit.wav", 5, states)
TEST_GLOBAL_LOUDNESS("seq-3341-6-6channels-WAVEEX-16bit.wav", 6, states)
TEST_GLOBAL_LOUDNESS("seq-3341-7_seq-3342-5-24bit.wav", 7, states)
TEST_GLOBAL_LOUDNESS("seq-3341-2011-8_seq-3342-6-24bit-v02.wav", 8, states)
/* Move some states around, to make the bug where
* ebur128_loudness_global_multiple() calculated the relative threshold just
* from the last state easier to reproduce. Don't care for leaks, etc. */
states[5] = states[0];
states[0] = states[8];
for (i = 0; i < 6; ++i) {
if (states[i] == NULL) {
printf("FAILED, ebur128_loudness_global_multiple needs all states of "
"seq-3341-1 until seq-3341-5 (inclusive) and "
"seq-3341-2011-8_seq-3342-6-24bit\n");
goto after_multiple_test;
}
}
result = 0;
ebur128_loudness_global_multiple(states, 6, &result);
fprintf(stderr, "multiple output: %f\n", result);
if (result >= -23.18758 - 0.05 && result <= -23.18758 + 0.05) {
printf("PASSED, ebur128_loudness_global_multiple\n");
} else {
printf("FAILED, ebur128_loudness_global_multiple\n");
}
after_multiple_test:;
#define TEST_LRA(filename, i) \
result = test_loudness_range(filename); \
if (result == result) { \
printf("%s, %s - %s: %1.16e\n", \
(result <= lra[i] + 1 && result >= lra[i] - 1) ? "PASSED" \
: "FAILED", \
(result == lrae[i]) ? "EXACT_PASSED" : "EXACT_FAILED", filename, \
result); \
}
TEST_LRA("seq-3342-1-16bit.wav", 0)
TEST_LRA("seq-3342-2-16bit.wav", 1)
TEST_LRA("seq-3342-3-16bit.wav", 2)
TEST_LRA("seq-3342-4-16bit.wav", 3)
TEST_LRA("seq-3341-7_seq-3342-5-24bit.wav", 4)
TEST_LRA("seq-3341-2011-8_seq-3342-6-24bit-v02.wav", 5)
#define TEST_MAX_TRUE_PEAK(filename, expected) \
result = test_true_peak(filename); \
if (result == result) { \
printf("%s - %s: %1.16e\n", \
(result <= expected + 0.2 && result >= expected - 0.4) ? "PASSED" \
: "FAILED", \
filename, result); \
}
TEST_MAX_TRUE_PEAK("seq-3341-15-24bit.wav.wav", -6.0)
TEST_MAX_TRUE_PEAK("seq-3341-16-24bit.wav.wav", -6.0)
TEST_MAX_TRUE_PEAK("seq-3341-17-24bit.wav.wav", -6.0)
TEST_MAX_TRUE_PEAK("seq-3341-18-24bit.wav.wav", -6.0)
TEST_MAX_TRUE_PEAK("seq-3341-19-24bit.wav.wav", 3.0)
TEST_MAX_TRUE_PEAK("seq-3341-20-24bit.wav.wav", 0.0)
TEST_MAX_TRUE_PEAK("seq-3341-21-24bit.wav.wav", 0.0)
TEST_MAX_TRUE_PEAK("seq-3341-22-24bit.wav.wav", 0.0)
TEST_MAX_TRUE_PEAK("seq-3341-23-24bit.wav.wav", 0.0)
#define TEST_MAX_MOMENTARY(filename, expected) \
result = test_max_momentary(filename); \
if (result == result) { \
printf("%s - %s: %1.16e\n", \
(result <= expected + 0.1 && result >= expected - 0.1) ? "PASSED" \
: "FAILED", \
filename, result); \
}
TEST_MAX_MOMENTARY("seq-3341-13-1-24bit.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-2-24bit.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-3-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-4-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-5-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-6-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-7-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-8-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-9-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-10-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-11-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-12-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-13-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-14-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-15-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-16-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-17-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-18-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-19-24bit.wav.wav", -23.0)
TEST_MAX_MOMENTARY("seq-3341-13-20-24bit.wav.wav", -23.0)
#define TEST_MAX_SHORTTERM(filename, expected) \
result = test_max_shortterm(filename); \
if (result == result) { \
printf("%s - %s: %1.16e\n", \
(result <= expected + 0.1 && result >= expected - 0.1) ? "PASSED" \
: "FAILED", \
filename, result); \
}
TEST_MAX_SHORTTERM("seq-3341-10-1-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-2-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-3-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-4-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-5-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-6-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-7-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-8-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-9-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-10-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-11-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-12-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-13-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-14-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-15-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-16-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-17-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-18-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-19-24bit.wav", -23.0)
TEST_MAX_SHORTTERM("seq-3341-10-20-24bit.wav", -23.0)
return 0;
}
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