/*
- Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic 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 General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
+
/** @file test/audio_filter_test.cc
- * @brief Basic tests of audio filters.
+ * @brief Test AudioFilter, LowPassAudioFilter, HighPassAudioFilter classes.
+ * @ingroup selfcontained
*/
+
#include <boost/test/unit_test.hpp>
#include "lib/audio_filter.h"
#include "lib/audio_buffers.h"
-using boost::shared_ptr;
+
+using std::make_shared;
+using std::shared_ptr;
+
static void
audio_filter_impulse_test_one (AudioFilter& f, int block_size, int num_blocks)
for (int i = 0; i < num_blocks; ++i) {
- shared_ptr<AudioBuffers> in (new AudioBuffers (1, block_size));
+ auto in = make_shared<AudioBuffers>(1, block_size);
for (int j = 0; j < block_size; ++j) {
in->data()[0][j] = c + j;
}
- shared_ptr<AudioBuffers> out = f.run (in);
-
+ auto out = f.run (in);
+
for (int j = 0; j < out->frames(); ++j) {
BOOST_CHECK_EQUAL (out->data()[0][j], c + j);
}
}
}
+
/** Create a filter with an impulse as a kernel and check that it
* passes data through unaltered.
*/
BOOST_AUTO_TEST_CASE (audio_filter_impulse_kernel_test)
{
AudioFilter f (0.02);
- f._ir.resize (f._M + 1);
+ f._ir.reserve(f._M + 1);
f._ir[0] = 1;
for (int i = 1; i <= f._M; ++i) {
f._ir[i] = 0;
audio_filter_impulse_test_one (f, 2048, 1);
}
+
/** Create filters and pass them impulses as input and check that
* the filter kernels comes back.
*/
{
LowPassAudioFilter lpf (0.02, 0.3);
- shared_ptr<AudioBuffers> in (new AudioBuffers (1, 1751));
+ auto in = make_shared<AudioBuffers>(1, 1751);
in->make_silent ();
in->data(0)[0] = 1;
-
- shared_ptr<AudioBuffers> out = lpf.run (in);
+
+ auto out = lpf.run (in);
for (int j = 0; j < out->frames(); ++j) {
if (j <= lpf._M) {
BOOST_CHECK_EQUAL (out->data(0)[j], lpf._ir[j]);
HighPassAudioFilter hpf (0.02, 0.3);
- in.reset (new AudioBuffers (1, 9133));
+ in = make_shared<AudioBuffers>(1, 9133);
in->make_silent ();
in->data(0)[0] = 1;
-
+
out = hpf.run (in);
for (int j = 0; j < out->frames(); ++j) {
if (j <= hpf._M) {