mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-03 16:09:39 +00:00
186 lines
8.9 KiB
C
186 lines
8.9 KiB
C
/* GStreamer
|
|
* (c) 2011 Stefan Kost <ensonic@users.sf.net>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <gst/fft/gstffts16.h>
|
|
#include <gst/fft/gstffts32.h>
|
|
#include <gst/fft/gstfftf32.h>
|
|
#include <gst/fft/gstfftf64.h>
|
|
|
|
/* effectively max range seems to be 1/4 of what it should be */
|
|
|
|
#define MAKE_I_TEST(_g_,_G_,_t_,_T_,_f_) \
|
|
static void \
|
|
test_##_t_ (const gchar *test_name, gint num_freq, gint window) \
|
|
{ \
|
|
GstFFT ##_T_ *ctx; \
|
|
GstFFT ##_T_ ##Complex *fdata; \
|
|
_g_ *adata; \
|
|
_g_ maxfr = 0, maxfi = 0; \
|
|
gint num_samples = num_freq * 2 - 2; \
|
|
gint s, f; \
|
|
\
|
|
ctx = gst_fft_ ##_t_ ##_new (num_samples, FALSE); \
|
|
fdata = g_new (GstFFT ##_T_ ##Complex, num_freq); \
|
|
adata = g_new (_g_, num_samples); \
|
|
\
|
|
for (s = 0; s < num_samples;) { \
|
|
adata[s++]=G_MIN##_G_; \
|
|
adata[s++]=G_MAX##_G_; \
|
|
} \
|
|
\
|
|
gst_fft_ ##_t_ ##_window (ctx, adata, window); \
|
|
gst_fft_ ##_t_ ##_fft (ctx, adata, fdata); \
|
|
\
|
|
for (f = 0; f < num_freq; f++) { \
|
|
if (fdata[1+f].r > maxfr) \
|
|
maxfr = fdata[1+f].r; \
|
|
if (fdata[1+f].i > maxfi) \
|
|
maxfi = fdata[1+f].i; \
|
|
} \
|
|
\
|
|
printf (#_t_" %-15s: maxfr: %"_f_" %10.5f maxfi: %"_f_" %10.5f\n",\
|
|
test_name, \
|
|
maxfr, (gfloat)G_MAX##_G_/maxfr, \
|
|
maxfi, (gfloat)G_MAX##_G_/maxfi); \
|
|
\
|
|
gst_fft_ ##_t_ ##_free (ctx); \
|
|
g_free (fdata); \
|
|
g_free (adata); \
|
|
}
|
|
|
|
MAKE_I_TEST (gint16, INT16, s16, S16, "6d");
|
|
MAKE_I_TEST (gint32, INT32, s32, S32, "9d");
|
|
|
|
#define MAKE_F_TEST(_g_,_G_,_t_,_T_,_f_) \
|
|
static void \
|
|
test_##_t_ (const gchar *test_name, gint num_freq, gint window) \
|
|
{ \
|
|
GstFFT ##_T_ *ctx; \
|
|
GstFFT ##_T_ ##Complex *fdata; \
|
|
_g_ *adata; \
|
|
_g_ maxfr = 0, maxfi = 0; \
|
|
gint num_samples = num_freq * 2 - 2; \
|
|
gint s, f; \
|
|
\
|
|
ctx = gst_fft_ ##_t_ ##_new (num_samples, FALSE); \
|
|
fdata = g_new (GstFFT ##_T_ ##Complex, num_freq); \
|
|
adata = g_new (_g_, num_samples); \
|
|
\
|
|
for (s = 0; s < num_samples;) { \
|
|
adata[s++]=-1.0; \
|
|
adata[s++]=+1.0; \
|
|
} \
|
|
\
|
|
gst_fft_ ##_t_ ##_window (ctx, adata, window); \
|
|
gst_fft_ ##_t_ ##_fft (ctx, adata, fdata); \
|
|
\
|
|
for (f = 0; f < num_freq; f++) { \
|
|
if (fdata[1+f].r > maxfr) \
|
|
maxfr = fdata[1+f].r; \
|
|
if (fdata[1+f].i > maxfi) \
|
|
maxfi = fdata[1+f].i; \
|
|
} \
|
|
\
|
|
printf (#_t_" %-15s: maxfr: %"_f_" %10.5f maxfi: %"_f_" %10.5f\n",\
|
|
test_name, \
|
|
maxfr, (gfloat)1.0/maxfr, \
|
|
maxfi, (gfloat)1.0/maxfi); \
|
|
\
|
|
gst_fft_ ##_t_ ##_free (ctx); \
|
|
g_free (fdata); \
|
|
g_free (adata); \
|
|
}
|
|
|
|
MAKE_F_TEST (gfloat, FLOAT, f32, F32, "10.5f");
|
|
MAKE_F_TEST (gdouble, DOUBLE, f64, F64, "10.5f");
|
|
|
|
gint
|
|
main (gint argc, gchar * argv[])
|
|
{
|
|
gint num_bands;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
num_bands = 200;
|
|
test_s16 ("200, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_s16 ("200, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_s16 ("200, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_s16 ("200, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_s16 ("200, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("");
|
|
|
|
num_bands = 300;
|
|
test_s16 ("300, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_s16 ("300, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_s16 ("300, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_s16 ("300, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_s16 ("300, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("\n");
|
|
|
|
num_bands = 200;
|
|
test_s32 ("200, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_s32 ("200, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_s32 ("200, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_s32 ("200, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_s32 ("200, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("");
|
|
|
|
num_bands = 300;
|
|
test_s32 ("300, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_s32 ("300, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_s32 ("300, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_s32 ("300, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_s32 ("300, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("\n");
|
|
|
|
num_bands = 200;
|
|
test_f32 ("200, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_f32 ("200, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_f32 ("200, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_f32 ("200, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_f32 ("200, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("");
|
|
|
|
num_bands = 300;
|
|
test_f32 ("300, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_f32 ("300, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_f32 ("300, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_f32 ("300, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_f32 ("300, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("\n");
|
|
|
|
num_bands = 200;
|
|
test_f64 ("200, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_f64 ("200, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_f64 ("200, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_f64 ("200, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_f64 ("200, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("");
|
|
|
|
num_bands = 300;
|
|
test_f64 ("300, none", num_bands, GST_FFT_WINDOW_RECTANGULAR);
|
|
test_f64 ("300, hamming", num_bands, GST_FFT_WINDOW_HAMMING);
|
|
test_f64 ("300, hann", num_bands, GST_FFT_WINDOW_HANN);
|
|
test_f64 ("300, bartlett", num_bands, GST_FFT_WINDOW_BARTLETT);
|
|
test_f64 ("300, blackman", num_bands, GST_FFT_WINDOW_BLACKMAN);
|
|
puts ("\n");
|
|
|
|
return 0;
|
|
}
|