--- /dev/null
+/*
+ Copyright (C) 2013-2017 Carl Hetherington <cth@carlh.net>
+
+ 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.
+
+ 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "lib/audio_merger.h"
+#include "lib/audio_buffers.h"
+#include <boost/test/unit_test.hpp>
+#include <boost/bind.hpp>
+#include <boost/function.hpp>
+#include <boost/signals2.hpp>
+
+using std::pair;
+using boost::shared_ptr;
+using boost::bind;
+
+static shared_ptr<const AudioBuffers> last_audio;
+
+int const sampling_rate = 48000;
+
+BOOST_AUTO_TEST_CASE (audio_merger_test1)
+{
+ AudioMerger merger (1, sampling_rate);
+
+ /* 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, DCPTime());
+
+ /* Push 64 samples, 0 -> 63 at time 22 */
+ merger.push (buffers, DCPTime::from_frames (22, sampling_rate));
+
+ pair<shared_ptr<AudioBuffers>, DCPTime> tb = merger.pull (DCPTime::from_frames (22, sampling_rate));
+ BOOST_CHECK (tb.first != shared_ptr<const AudioBuffers> ());
+ BOOST_CHECK_EQUAL (tb.first->frames(), 22);
+ BOOST_CHECK_EQUAL (tb.second.get(), 0);
+
+ /* And they should be a staircase */
+ for (int i = 0; i < 22; ++i) {
+ BOOST_CHECK_EQUAL (tb.first->data()[0][i], i);
+ }
+
+ tb = merger.pull (DCPTime::from_frames (22 + 64, sampling_rate));
+
+ BOOST_CHECK_EQUAL (tb.first->frames(), 64);
+ BOOST_CHECK_EQUAL (tb.second.get(), DCPTime::from_frames(22, sampling_rate).get());
+
+ /* Check the sample values */
+ for (int i = 0; i < 64; ++i) {
+ int correct = i;
+ if (i < (64 - 22)) {
+ correct += i + 22;
+ }
+ BOOST_CHECK_EQUAL (tb.first->data()[0][i], correct);
+ }
+}
+
+BOOST_AUTO_TEST_CASE (audio_merger_test2)
+{
+ AudioMerger merger (1, sampling_rate);
+
+ /* 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, DCPTime::from_frames (9, sampling_rate));
+
+ pair<shared_ptr<AudioBuffers>, DCPTime> tb = merger.pull (DCPTime::from_frames (9, sampling_rate));
+ BOOST_CHECK_EQUAL (tb.first->frames(), 9);
+ BOOST_CHECK_EQUAL (tb.second.get(), 0);
+
+ for (int i = 0; i < 9; ++i) {
+ BOOST_CHECK_EQUAL (tb.first->data()[0][i], 0);
+ }
+
+ tb = merger.pull (DCPTime::from_frames (9 + 64, sampling_rate));
+
+ BOOST_CHECK_EQUAL (tb.first->frames(), 64);
+ BOOST_CHECK_EQUAL (tb.second.get(), DCPTime::from_frames(9, sampling_rate).get());
+
+ /* Check the sample values */
+ for (int i = 0; i < 64; ++i) {
+ BOOST_CHECK_EQUAL (tb.first->data()[0][i], i);
+ }
+}