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/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
This program 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,
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.
*/
#include <boost/test/unit_test.hpp>
#include <boost/bind.hpp>
#include <boost/function.hpp>
#include <boost/signals2.hpp>
#include "lib/audio_merger.h"
#include "lib/audio_buffers.h"
using boost::shared_ptr;
using boost::bind;
static shared_ptr<const AudioBuffers> last_audio;
static int last_time;
static int
pass_through (int x)
{
return x;
}
static void
process_audio (shared_ptr<const AudioBuffers> audio, int time)
{
last_audio = audio;
last_time = time;
}
static void
reset ()
{
last_audio.reset ();
last_time = 0;
}
BOOST_AUTO_TEST_CASE (audio_merger_test1)
{
AudioMerger<int, int> merger (1, bind (&pass_through, _1), boost::bind (&pass_through, _1));
merger.Audio.connect (bind (&process_audio, _1, _2));
reset ();
/* Push 64 samples, 0 -> 63 at time 0 */
shared_ptr<AudioBuffers> buffers (new AudioBuffers (1, 64));
for (int i = 0; i < 64; ++i) {
buffers->data()[0][i] = i;
}
merger.push (buffers, 0);
/* That should not have caused an emission */
BOOST_CHECK_EQUAL (last_audio, shared_ptr<const AudioBuffers> ());
BOOST_CHECK_EQUAL (last_time, 0);
/* Push 64 samples, 0 -> 63 at time 22 */
merger.push (buffers, 22);
/* That should have caused an emission of 22 samples at 0 */
BOOST_CHECK (last_audio != shared_ptr<const AudioBuffers> ());
BOOST_CHECK_EQUAL (last_audio->frames(), 22);
BOOST_CHECK_EQUAL (last_time, 0);
/* And they should be a staircase */
for (int i = 0; i < 22; ++i) {
BOOST_CHECK_EQUAL (last_audio->data()[0][i], i);
}
reset ();
merger.flush ();
/* That flush should give us 64 samples at 22 */
BOOST_CHECK_EQUAL (last_audio->frames(), 64);
BOOST_CHECK_EQUAL (last_time, 22);
/* Check the sample values */
for (int i = 0; i < 64; ++i) {
int correct = i;
if (i < (64 - 22)) {
correct += i + 22;
}
BOOST_CHECK_EQUAL (last_audio->data()[0][i], correct);
}
}
BOOST_AUTO_TEST_CASE (audio_merger_test2)
{
AudioMerger<int, int> merger (1, bind (&pass_through, _1), boost::bind (&pass_through, _1));
merger.Audio.connect (bind (&process_audio, _1, _2));
reset ();
/* Push 64 samples, 0 -> 63 at time 9 */
shared_ptr<AudioBuffers> buffers (new AudioBuffers (1, 64));
for (int i = 0; i < 64; ++i) {
buffers->data()[0][i] = i;
}
merger.push (buffers, 9);
/* That flush should give us 9 samples at 0 */
BOOST_CHECK_EQUAL (last_audio->frames(), 9);
BOOST_CHECK_EQUAL (last_time, 0);
for (int i = 0; i < 9; ++i) {
BOOST_CHECK_EQUAL (last_audio->data()[0][i], 0);
}
reset ();
merger.flush ();
/* That flush should give us 64 samples at 9 */
BOOST_CHECK_EQUAL (last_audio->frames(), 64);
BOOST_CHECK_EQUAL (last_time, 9);
/* Check the sample values */
for (int i = 0; i < 64; ++i) {
BOOST_CHECK_EQUAL (last_audio->data()[0][i], i);
}
}
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