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Original commit message from CVS: Reviewed by: Stefan Kost <ensonic@users.sf.net> * configure.ac: * gst-libs/gst/Makefile.am: * gst-libs/gst/fft/Makefile.am: * gst-libs/gst/fft/_kiss_fft_guts_f32.h: * gst-libs/gst/fft/_kiss_fft_guts_f64.h: * gst-libs/gst/fft/_kiss_fft_guts_s16.h: * gst-libs/gst/fft/_kiss_fft_guts_s32.h: * gst-libs/gst/fft/gstfft.c: (gst_fft_next_fast_length): * gst-libs/gst/fft/gstfft.h: * gst-libs/gst/fft/gstfftf32.c: (gst_fft_f32_new), (gst_fft_f32_fft), (gst_fft_f32_inverse_fft), (gst_fft_f32_free), (gst_fft_f32_window), (gst_fft_f32_magnitude), (gst_fft_f32_phase): * gst-libs/gst/fft/gstfftf32.h: * gst-libs/gst/fft/gstfftf64.c: (gst_fft_f64_new), (gst_fft_f64_fft), (gst_fft_f64_inverse_fft), (gst_fft_f64_free), (gst_fft_f64_window), (gst_fft_f64_magnitude), (gst_fft_f64_phase): * gst-libs/gst/fft/gstfftf64.h: * gst-libs/gst/fft/gstffts16.c: (gst_fft_s16_new), (gst_fft_s16_fft), (gst_fft_s16_inverse_fft), (gst_fft_s16_free), (gst_fft_s16_window), (gst_fft_s16_magnitude), (gst_fft_s16_phase): * gst-libs/gst/fft/gstffts16.h: * gst-libs/gst/fft/gstffts32.c: (gst_fft_s32_new), (gst_fft_s32_fft), (gst_fft_s32_inverse_fft), (gst_fft_s32_free), (gst_fft_s32_window), (gst_fft_s32_magnitude), (gst_fft_s32_phase): * gst-libs/gst/fft/gstffts32.h: * gst-libs/gst/fft/kiss_fft_f32.c: (kf_bfly2), (kf_bfly4), (kf_bfly3), (kf_bfly5), (kf_bfly_generic), (kf_work), (kf_factor), (kiss_fft_f32_alloc), (kiss_fft_f32_stride), (kiss_fft_f32), (kiss_fft_f32_cleanup), (kiss_fft_f32_next_fast_size): * gst-libs/gst/fft/kiss_fft_f32.h: * gst-libs/gst/fft/kiss_fft_f64.c: (kf_bfly2), (kf_bfly4), (kf_bfly3), (kf_bfly5), (kf_bfly_generic), (kf_work), (kf_factor), (kiss_fft_f64_alloc), (kiss_fft_f64_stride), (kiss_fft_f64), (kiss_fft_f64_cleanup), (kiss_fft_f64_next_fast_size): * gst-libs/gst/fft/kiss_fft_f64.h: * gst-libs/gst/fft/kiss_fft_s16.c: (kf_bfly2), (kf_bfly4), (kf_bfly3), (kf_bfly5), (kf_bfly_generic), (kf_work), (kf_factor), (kiss_fft_s16_alloc), (kiss_fft_s16_stride), (kiss_fft_s16), (kiss_fft_s16_cleanup), (kiss_fft_s16_next_fast_size): * gst-libs/gst/fft/kiss_fft_s16.h: * gst-libs/gst/fft/kiss_fft_s32.c: (kf_bfly2), (kf_bfly4), (kf_bfly3), (kf_bfly5), (kf_bfly_generic), (kf_work), (kf_factor), (kiss_fft_s32_alloc), (kiss_fft_s32_stride), (kiss_fft_s32), (kiss_fft_s32_cleanup), (kiss_fft_s32_next_fast_size): * gst-libs/gst/fft/kiss_fft_s32.h: * gst-libs/gst/fft/kiss_fftr_f32.c: (kiss_fftr_f32_alloc), (kiss_fftr_f32), (kiss_fftri_f32): * gst-libs/gst/fft/kiss_fftr_f32.h: * gst-libs/gst/fft/kiss_fftr_f64.c: (kiss_fftr_f64_alloc), (kiss_fftr_f64), (kiss_fftri_f64): * gst-libs/gst/fft/kiss_fftr_f64.h: * gst-libs/gst/fft/kiss_fftr_s16.c: (kiss_fftr_s16_alloc), (kiss_fftr_s16), (kiss_fftri_s16): * gst-libs/gst/fft/kiss_fftr_s16.h: * gst-libs/gst/fft/kiss_fftr_s32.c: (kiss_fftr_s32_alloc), (kiss_fftr_s32), (kiss_fftri_s32): * gst-libs/gst/fft/kiss_fftr_s32.h: * gst-libs/gst/fft/kiss_version: * pkgconfig/gstreamer-plugins-base-uninstalled.pc.in: * pkgconfig/gstreamer-plugins-base.pc.in: Add libgstfft, a FFT library based on Kiss FFT which is BSD licensed. Supported sample formats are int16, int32, float and double. For those formats a real FFT and IFFT can be done, different windowing functions can be applied and functions for extracting the magnitude and phase exist. Fixes #468619. * docs/libs/Makefile.am: * docs/libs/gst-plugins-base-libs-docs.sgml: * docs/libs/gst-plugins-base-libs-sections.txt: Integrate libgstfft into the docs. * tests/check/Makefile.am: * tests/check/libs/fft.c: (GST_START_TEST), (fft_suite), (main): Add unit tests for libgstfft, currently only testing the FFT. Unit tests for IFFT will follow soon.
505 lines
11 KiB
C
505 lines
11 KiB
C
/* GStreamer
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*
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* unit test for FFT library
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*
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/check/gstcheck.h>
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#include <gst/fft/gstfft.h>
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#include <gst/fft/gstffts16.h>
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#include <gst/fft/gstffts32.h>
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#include <gst/fft/gstfftf32.h>
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#include <gst/fft/gstfftf64.h>
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GST_START_TEST (test_next_fast_length)
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{
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fail_unless_equals_int (gst_fft_next_fast_length (13), 16);
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fail_unless_equals_int (gst_fft_next_fast_length (30), 30);
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fail_unless_equals_int (gst_fft_next_fast_length (31), 32);
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fail_unless_equals_int (gst_fft_next_fast_length (1), 2);
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}
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GST_END_TEST;
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GST_START_TEST (test_s16_0hz)
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{
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gint i;
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gint16 *in;
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GstFFTS16Complex *out;
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gdouble *mag;
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GstFFTS16 *ctx;
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in = g_new (gint16, 2048);
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out = g_new (GstFFTS16Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s16_new (2048, FALSE);
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for (i = 0; i < 2048; i++)
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in[i] = G_MAXINT16;
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gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s16_fft (ctx, in, out);
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gst_fft_s16_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i < 2 && mag[i] < -15.0);
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fail_if (i >= 2 && mag[i] > -60.0);
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}
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gst_fft_s16_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_s16_11025hz)
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{
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gint i;
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gint16 *in;
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GstFFTS16Complex *out;
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gdouble *mag;
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GstFFTS16 *ctx;
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in = g_new (gint16, 2048);
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out = g_new (GstFFTS16Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s16_new (2048, FALSE);
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for (i = 0; i < 2048; i += 4) {
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in[i] = 0;
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in[i + 1] = G_MAXINT16;
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in[i + 2] = 0;
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in[i + 3] = G_MININT16;
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}
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gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s16_fft (ctx, in, out);
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gst_fft_s16_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (abs (512 - i) < 2 && mag[i] < -20.0);
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fail_if (abs (512 - i) >= 2 && mag[i] > -60.0);
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}
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gst_fft_s16_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_s16_22050hz)
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{
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gint i;
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gint16 *in;
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GstFFTS16Complex *out;
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gdouble *mag;
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GstFFTS16 *ctx;
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in = g_new (gint16, 2048);
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out = g_new (GstFFTS16Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s16_new (2048, FALSE);
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for (i = 0; i < 2048; i += 2) {
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in[i] = G_MAXINT16;
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in[i + 1] = G_MININT16;
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}
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gst_fft_s16_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s16_fft (ctx, in, out);
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gst_fft_s16_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i > 1022 && mag[i] < -20.0);
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fail_if (i <= 1022 && mag[i] > -60.0);
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}
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gst_fft_s16_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_s32_0hz)
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{
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gint i;
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gint32 *in;
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GstFFTS32Complex *out;
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gdouble *mag;
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GstFFTS32 *ctx;
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in = g_new (gint32, 2048);
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out = g_new (GstFFTS32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s32_new (2048, FALSE);
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for (i = 0; i < 2048; i++)
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in[i] = 2147483647;
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gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s32_fft (ctx, in, out);
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gst_fft_s32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i < 2 && mag[i] < -15.0);
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fail_if (i >= 2 && mag[i] > -60.0);
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}
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gst_fft_s32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_s32_11025hz)
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{
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gint i;
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gint32 *in;
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GstFFTS32Complex *out;
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gdouble *mag;
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GstFFTS32 *ctx;
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in = g_new (gint32, 2048);
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out = g_new (GstFFTS32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s32_new (2048, FALSE);
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for (i = 0; i < 2048; i += 4) {
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in[i] = 0;
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in[i + 1] = G_MAXINT32;
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in[i + 2] = 0;
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in[i + 3] = G_MININT32;
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}
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gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s32_fft (ctx, in, out);
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gst_fft_s32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (abs (512 - i) < 2 && mag[i] < -20.0);
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fail_if (abs (512 - i) >= 2 && mag[i] > -60.0);
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}
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gst_fft_s32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_s32_22050hz)
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{
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gint i;
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gint32 *in;
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GstFFTS32Complex *out;
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gdouble *mag;
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GstFFTS32 *ctx;
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in = g_new (gint32, 2048);
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out = g_new (GstFFTS32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_s32_new (2048, FALSE);
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for (i = 0; i < 2048; i += 2) {
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in[i] = G_MAXINT32;
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in[i + 1] = G_MININT32;
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}
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gst_fft_s32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_s32_fft (ctx, in, out);
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gst_fft_s32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i > 1022 && mag[i] < -20.0);
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fail_if (i <= 1022 && mag[i] > -60.0);
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}
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gst_fft_s32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_f32_0hz)
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{
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gint i;
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gfloat *in;
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GstFFTF32Complex *out;
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gdouble *mag;
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GstFFTF32 *ctx;
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in = g_new (gfloat, 2048);
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out = g_new (GstFFTF32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_f32_new (2048, FALSE);
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for (i = 0; i < 2048; i++)
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in[i] = 1.0;
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gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_f32_fft (ctx, in, out);
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gst_fft_f32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i < 2 && mag[i] < -15.0);
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fail_if (i >= 2 && mag[i] > -60.0);
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}
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gst_fft_f32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_f32_11025hz)
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{
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gint i;
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gfloat *in;
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GstFFTF32Complex *out;
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gdouble *mag;
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GstFFTF32 *ctx;
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in = g_new (gfloat, 2048);
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out = g_new (GstFFTF32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_f32_new (2048, FALSE);
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for (i = 0; i < 2048; i += 4) {
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in[i] = 0.0;
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in[i + 1] = 1.0;
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in[i + 2] = 0.0;
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in[i + 3] = -1.0;
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}
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gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_f32_fft (ctx, in, out);
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gst_fft_f32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (abs (512 - i) < 2 && mag[i] < -20.0);
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fail_if (abs (512 - i) >= 2 && mag[i] > -60.0);
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}
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gst_fft_f32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_f32_22050hz)
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{
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gint i;
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gfloat *in;
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GstFFTF32Complex *out;
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gdouble *mag;
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GstFFTF32 *ctx;
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in = g_new (gfloat, 2048);
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out = g_new (GstFFTF32Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_f32_new (2048, FALSE);
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for (i = 0; i < 2048; i += 2) {
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in[i] = 1.0;
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in[i + 1] = -1.0;
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}
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gst_fft_f32_window (ctx, in, GST_FFT_WINDOW_HAMMING);
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gst_fft_f32_fft (ctx, in, out);
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gst_fft_f32_magnitude (ctx, out, mag, TRUE);
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for (i = 0; i < 1025; i++) {
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fail_if (i > 1022 && mag[i] < -20.0);
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fail_if (i <= 1022 && mag[i] > -60.0);
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}
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gst_fft_f32_free (ctx);
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g_free (in);
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g_free (out);
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g_free (mag);
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}
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GST_END_TEST;
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GST_START_TEST (test_f64_0hz)
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{
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gint i;
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gdouble *in;
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GstFFTF64Complex *out;
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gdouble *mag;
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GstFFTF64 *ctx;
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in = g_new (gdouble, 2048);
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out = g_new (GstFFTF64Complex, 1025);
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mag = g_new (gdouble, 1025);
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ctx = gst_fft_f64_new (2048, FALSE);
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for (i = 0; i < 2048; i++)
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in[i] = 1.0;
|
|
|
|
gst_fft_f64_window (ctx, in, GST_FFT_WINDOW_HAMMING);
|
|
gst_fft_f64_fft (ctx, in, out);
|
|
gst_fft_f64_magnitude (ctx, out, mag, TRUE);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
fail_if (i < 2 && mag[i] < -15.0);
|
|
fail_if (i >= 2 && mag[i] > -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
g_free (mag);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f64_11025hz)
|
|
{
|
|
gint i;
|
|
gdouble *in;
|
|
GstFFTF64Complex *out;
|
|
gdouble *mag;
|
|
GstFFTF64 *ctx;
|
|
|
|
in = g_new (gdouble, 2048);
|
|
out = g_new (GstFFTF64Complex, 1025);
|
|
mag = g_new (gdouble, 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);
|
|
gst_fft_f64_magnitude (ctx, out, mag, TRUE);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
fail_if (abs (512 - i) < 2 && mag[i] < -20.0);
|
|
fail_if (abs (512 - i) >= 2 && mag[i] > -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
g_free (mag);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
GST_START_TEST (test_f64_22050hz)
|
|
{
|
|
gint i;
|
|
gdouble *in;
|
|
GstFFTF64Complex *out;
|
|
gdouble *mag;
|
|
GstFFTF64 *ctx;
|
|
|
|
in = g_new (gdouble, 2048);
|
|
out = g_new (GstFFTF64Complex, 1025);
|
|
mag = g_new (gdouble, 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);
|
|
gst_fft_f64_magnitude (ctx, out, mag, TRUE);
|
|
|
|
for (i = 0; i < 1025; i++) {
|
|
fail_if (i > 1022 && mag[i] < -20.0);
|
|
fail_if (i <= 1022 && mag[i] > -60.0);
|
|
}
|
|
|
|
gst_fft_f64_free (ctx);
|
|
g_free (in);
|
|
g_free (out);
|
|
g_free (mag);
|
|
}
|
|
|
|
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;
|
|
}
|