2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file test/audio_decoder_test.cc
21 * @brief Tests of the AudioDecoder class.
25 #include <boost/test/unit_test.hpp>
27 #include "lib/audio_decoder.h"
28 #include "lib/audio_content.h"
33 using boost::shared_ptr;
35 class TestAudioContent : public AudioContent
38 TestAudioContent (shared_ptr<Film> film)
40 , AudioContent (film, DCPTime ())
43 string summary () const {
47 string information () const {
51 DCPTime full_length () const {
52 return DCPTime::from_seconds (float (audio_length()) / audio_frame_rate ());
55 int audio_channels () const {
59 Frame audio_length () const {
60 return rint (61.2942 * audio_frame_rate ());
63 int audio_frame_rate () const {
67 AudioMapping audio_mapping () const {
68 return AudioMapping (audio_channels ());
71 void set_audio_mapping (AudioMapping) {}
74 class TestAudioDecoder : public AudioDecoder
77 TestAudioDecoder (shared_ptr<TestAudioContent> content)
78 : AudioDecoder (content)
79 , _test_audio_content (content)
83 bool pass (PassReason)
87 _test_audio_content->audio_length() - _position
90 shared_ptr<AudioBuffers> buffers (new AudioBuffers (_audio_content->audio_channels(), N));
91 for (int i = 0; i < _audio_content->audio_channels(); ++i) {
92 for (int j = 0; j < N; ++j) {
93 buffers->data(i)[j] = j + _position;
97 audio (buffers, ContentTime::from_frames (_position, _audio_content->resampled_audio_frame_rate ()));
103 void seek (ContentTime t, bool accurate)
105 AudioDecoder::seek (t, accurate);
106 _position = t.frames (_audio_content->resampled_audio_frame_rate ());
110 boost::shared_ptr<TestAudioContent> _test_audio_content;
114 shared_ptr<TestAudioContent> content;
115 shared_ptr<TestAudioDecoder> decoder;
117 static shared_ptr<ContentAudio>
118 get (Frame from, Frame length)
120 decoder->seek (ContentTime::from_frames (from, content->resampled_audio_frame_rate ()), true);
121 shared_ptr<ContentAudio> ca = decoder->get_audio (from, length, true);
122 BOOST_CHECK_EQUAL (ca->frame, from);
127 check (Frame from, Frame length)
129 shared_ptr<ContentAudio> ca = get (from, length);
130 for (int i = 0; i < content->audio_channels(); ++i) {
131 for (int j = 0; j < length; ++j) {
132 BOOST_CHECK_EQUAL (ca->audio->data(i)[j], j + from);
133 assert (ca->audio->data(i)[j] == j + from);
138 /** Check the logic in AudioDecoder::get_audio */
139 BOOST_AUTO_TEST_CASE (audio_decoder_get_audio_test)
141 shared_ptr<Film> film = new_test_film ("audio_decoder_test");
143 content.reset (new TestAudioContent (film));
144 decoder.reset (new TestAudioDecoder (content));
151 /* Read off the end */
153 Frame const from = content->resampled_audio_frame_rate() * 61;
154 Frame const length = content->resampled_audio_frame_rate() * 4;
155 shared_ptr<ContentAudio> ca = get (from, length);
157 for (int i = 0; i < content->audio_channels(); ++i) {
158 for (int j = 0; j < ca->audio->frames(); ++j) {
159 BOOST_REQUIRE_EQUAL (ca->audio->data(i)[j], j + from);