mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-01 22:21:13 +00:00
863d54100d
Original commit message from CVS: * tests/check/libs/fft.c: (GST_START_TEST): Fix scaling to really have dB instead of something else.
563 lines
12 KiB
C
563 lines
12 KiB
C
/* GStreamer
|
|
*
|
|
* unit test for FFT library
|
|
*
|
|
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/check/gstcheck.h>
|
|
|
|
#include <gst/fft/gstfft.h>
|
|
#include <gst/fft/gstffts16.h>
|
|
#include <gst/fft/gstffts32.h>
|
|
#include <gst/fft/gstfftf32.h>
|
|
#include <gst/fft/gstfftf64.h>
|
|
|
|
GST_START_TEST (test_next_fast_length)
|
|
{
|
|
fail_unless_equals_int (gst_fft_next_fast_length (13), 16);
|
|
fail_unless_equals_int (gst_fft_next_fast_length (30), 30);
|
|
fail_unless_equals_int (gst_fft_next_fast_length (31), 32);
|
|
fail_unless_equals_int (gst_fft_next_fast_length (1), 2);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s16_0hz)
|
|
{
|
|
gint i;
|
|
gint16 *in;
|
|
GstFFTS16Complex *out;
|
|
GstFFTS16 *ctx;
|
|
|
|
in = g_new (gint16, 2048);
|
|
out = g_new (GstFFTS16Complex, 1025);
|
|
ctx = gst_fft_s16_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i++)
|
|
in[i] = G_MAXINT16;
|
|
|
|
gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s16_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 32767.0 * 32767.0;
|
|
mag = 10.0 * log10 (mag);
|
|
if (i < 2)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -55.0);
|
|
}
|
|
|
|
gst_fft_s16_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s16_11025hz)
|
|
{
|
|
gint i;
|
|
gint16 *in;
|
|
GstFFTS16Complex *out;
|
|
GstFFTS16 *ctx;
|
|
|
|
in = g_new (gint16, 2048);
|
|
out = g_new (GstFFTS16Complex, 1025);
|
|
ctx = gst_fft_s16_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 4) {
|
|
in[i] = 0;
|
|
in[i + 1] = G_MAXINT16;
|
|
in[i + 2] = 0;
|
|
in[i + 3] = G_MININT16;
|
|
}
|
|
|
|
gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s16_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 32767.0 * 32767.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (abs (512 - i) < 2)
|
|
fail_unless (mag > -20.0);
|
|
else
|
|
fail_unless (mag < -55.0);
|
|
}
|
|
|
|
gst_fft_s16_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s16_22050hz)
|
|
{
|
|
gint i;
|
|
gint16 *in;
|
|
GstFFTS16Complex *out;
|
|
GstFFTS16 *ctx;
|
|
|
|
in = g_new (gint16, 2048);
|
|
out = g_new (GstFFTS16Complex, 1025);
|
|
ctx = gst_fft_s16_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 2) {
|
|
in[i] = G_MAXINT16;
|
|
in[i + 1] = G_MININT16;
|
|
}
|
|
|
|
gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s16_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 32767.0 * 32767.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i > 1022)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -55.0);
|
|
}
|
|
|
|
gst_fft_s16_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s32_0hz)
|
|
{
|
|
gint i;
|
|
gint32 *in;
|
|
GstFFTS32Complex *out;
|
|
GstFFTS32 *ctx;
|
|
|
|
in = g_new (gint32, 2048);
|
|
out = g_new (GstFFTS32Complex, 1025);
|
|
ctx = gst_fft_s32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i++)
|
|
in[i] = 2147483647;
|
|
|
|
gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2147483647.0 * 2147483647.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i < 2)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_s32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s32_11025hz)
|
|
{
|
|
gint i;
|
|
gint32 *in;
|
|
GstFFTS32Complex *out;
|
|
GstFFTS32 *ctx;
|
|
|
|
in = g_new (gint32, 2048);
|
|
out = g_new (GstFFTS32Complex, 1025);
|
|
ctx = gst_fft_s32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 4) {
|
|
in[i] = 0;
|
|
in[i + 1] = G_MAXINT32;
|
|
in[i + 2] = 0;
|
|
in[i + 3] = G_MININT32;
|
|
}
|
|
|
|
gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2147483647.0 * 2147483647.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (abs (512 - i) < 2)
|
|
fail_unless (mag > -20.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_s32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_s32_22050hz)
|
|
{
|
|
gint i;
|
|
gint32 *in;
|
|
GstFFTS32Complex *out;
|
|
GstFFTS32 *ctx;
|
|
|
|
in = g_new (gint32, 2048);
|
|
out = g_new (GstFFTS32Complex, 1025);
|
|
ctx = gst_fft_s32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 2) {
|
|
in[i] = G_MAXINT32;
|
|
in[i + 1] = G_MININT32;
|
|
}
|
|
|
|
gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_s32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2147483647.0 * 2147483647.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i > 1022)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_s32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f32_0hz)
|
|
{
|
|
gint i;
|
|
gfloat *in;
|
|
GstFFTF32Complex *out;
|
|
GstFFTF32 *ctx;
|
|
|
|
in = g_new (gfloat, 2048);
|
|
out = g_new (GstFFTF32Complex, 1025);
|
|
ctx = gst_fft_f32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i++)
|
|
in[i] = 1.0;
|
|
|
|
gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i < 2)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f32_11025hz)
|
|
{
|
|
gint i;
|
|
gfloat *in;
|
|
GstFFTF32Complex *out;
|
|
GstFFTF32 *ctx;
|
|
|
|
in = g_new (gfloat, 2048);
|
|
out = g_new (GstFFTF32Complex, 1025);
|
|
ctx = gst_fft_f32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 4) {
|
|
in[i] = 0.0;
|
|
in[i + 1] = 1.0;
|
|
in[i + 2] = 0.0;
|
|
in[i + 3] = -1.0;
|
|
}
|
|
|
|
gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (abs (512 - i) < 2)
|
|
fail_unless (mag > -20.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f32_22050hz)
|
|
{
|
|
gint i;
|
|
gfloat *in;
|
|
GstFFTF32Complex *out;
|
|
GstFFTF32 *ctx;
|
|
|
|
in = g_new (gfloat, 2048);
|
|
out = g_new (GstFFTF32Complex, 1025);
|
|
ctx = gst_fft_f32_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 2) {
|
|
in[i] = 1.0;
|
|
in[i + 1] = -1.0;
|
|
}
|
|
|
|
gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f32_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i > 1022)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f32_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f64_0hz)
|
|
{
|
|
gint i;
|
|
gdouble *in;
|
|
GstFFTF64Complex *out;
|
|
GstFFTF64 *ctx;
|
|
|
|
in = g_new (gdouble, 2048);
|
|
out = g_new (GstFFTF64Complex, 1025);
|
|
ctx = gst_fft_f64_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i++)
|
|
in[i] = 1.0;
|
|
|
|
gst_fft_f64_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f64_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i < 2)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f64_11025hz)
|
|
{
|
|
gint i;
|
|
gdouble *in;
|
|
GstFFTF64Complex *out;
|
|
GstFFTF64 *ctx;
|
|
|
|
in = g_new (gdouble, 2048);
|
|
out = g_new (GstFFTF64Complex, 1025);
|
|
ctx = gst_fft_f64_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 4) {
|
|
in[i] = 0.0;
|
|
in[i + 1] = 1.0;
|
|
in[i + 2] = 0.0;
|
|
in[i + 3] = -1.0;
|
|
}
|
|
|
|
gst_fft_f64_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f64_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (abs (512 - i) < 2)
|
|
fail_unless (mag > -20.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f64_22050hz)
|
|
{
|
|
gint i;
|
|
gdouble *in;
|
|
GstFFTF64Complex *out;
|
|
GstFFTF64 *ctx;
|
|
|
|
in = g_new (gdouble, 2048);
|
|
out = g_new (GstFFTF64Complex, 1025);
|
|
ctx = gst_fft_f64_new (2048, FALSE);
|
|
|
|
for (i = 0; i < 2048; i += 2) {
|
|
in[i] = 1.0;
|
|
in[i + 1] = -1.0;
|
|
}
|
|
|
|
gst_fft_f64_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f64_fft (ctx, in, out);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
gdouble mag;
|
|
|
|
mag = (gdouble) out[i].r * (gdouble) out[i].r;
|
|
mag += (gdouble) out[i].i * (gdouble) out[i].i;
|
|
mag /= 2048.0 * 2048.0;
|
|
mag = 10.0 * log10 (mag);
|
|
|
|
if (i > 1022)
|
|
fail_unless (mag > -15.0);
|
|
else
|
|
fail_unless (mag < -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
static Suite *
|
|
fft_suite (void)
|
|
{
|
|
Suite *s = suite_create ("fft library");
|
|
TCase *tc_chain = tcase_create ("general");
|
|
|
|
suite_add_tcase (s, tc_chain);
|
|
tcase_add_test (tc_chain, test_next_fast_length);
|
|
tcase_add_test (tc_chain, test_s16_0hz);
|
|
tcase_add_test (tc_chain, test_s16_11025hz);
|
|
tcase_add_test (tc_chain, test_s16_22050hz);
|
|
tcase_add_test (tc_chain, test_s32_0hz);
|
|
tcase_add_test (tc_chain, test_s32_11025hz);
|
|
tcase_add_test (tc_chain, test_s32_22050hz);
|
|
tcase_add_test (tc_chain, test_f32_0hz);
|
|
tcase_add_test (tc_chain, test_f32_11025hz);
|
|
tcase_add_test (tc_chain, test_f32_22050hz);
|
|
tcase_add_test (tc_chain, test_f64_0hz);
|
|
tcase_add_test (tc_chain, test_f64_11025hz);
|
|
tcase_add_test (tc_chain, test_f64_22050hz);
|
|
|
|
return s;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
int nf;
|
|
|
|
Suite *s = fft_suite ();
|
|
SRunner *sr = srunner_create (s);
|
|
|
|
gst_check_init (&argc, &argv);
|
|
|
|
srunner_run_all (sr, CK_NORMAL);
|
|
nf = srunner_ntests_failed (sr);
|
|
srunner_free (sr);
|
|
|
|
return nf;
|
|
}
|