2 Copyright (C) 2014 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 TestAudioDecoder : public AudioDecoder
38 TestAudioDecoder (shared_ptr<AudioContent> content)
39 : AudioDecoder (content)
45 AudioFrame const N = min (
47 _audio_content->audio_length().frames (_audio_content->resampled_audio_frame_rate ()) - _position
50 shared_ptr<AudioBuffers> buffers (new AudioBuffers (_audio_content->audio_channels(), N));
51 for (int i = 0; i < _audio_content->audio_channels(); ++i) {
52 for (int j = 0; j < N; ++j) {
53 buffers->data(i)[j] = j + _position;
57 audio (buffers, ContentTime::from_frames (_position, _audio_content->resampled_audio_frame_rate ()));
63 void seek (ContentTime t, bool accurate)
65 AudioDecoder::seek (t, accurate);
66 _position = t.frames (_audio_content->resampled_audio_frame_rate ());
73 class TestAudioContent : public AudioContent
76 TestAudioContent (shared_ptr<Film> film)
78 , AudioContent (film, DCPTime ())
81 string summary () const {
85 string information () const {
89 DCPTime full_length () const {
90 return DCPTime (audio_length().get ());
93 int audio_channels () const {
97 ContentTime audio_length () const {
98 return ContentTime::from_seconds (61.2942);
101 int audio_frame_rate () const {
105 AudioMapping audio_mapping () const {
106 return AudioMapping (audio_channels ());
109 void set_audio_mapping (AudioMapping) {}
112 shared_ptr<TestAudioContent> content;
113 shared_ptr<TestAudioDecoder> decoder;
115 static shared_ptr<ContentAudio>
116 get (AudioFrame from, AudioFrame length)
118 decoder->seek (ContentTime::from_frames (from, content->resampled_audio_frame_rate ()), true);
119 shared_ptr<ContentAudio> ca = decoder->get_audio (from, length, true);
120 BOOST_CHECK_EQUAL (ca->frame, from);
125 check (AudioFrame from, AudioFrame length)
127 shared_ptr<ContentAudio> ca = get (from, length);
128 for (int i = 0; i < content->audio_channels(); ++i) {
129 for (int j = 0; j < length; ++j) {
130 BOOST_CHECK_EQUAL (ca->audio->data(i)[j], j + from);
131 assert (ca->audio->data(i)[j] == j + from);
136 /** Check the logic in AudioDecoder::get_audio */
137 BOOST_AUTO_TEST_CASE (audio_decoder_get_audio_test)
139 shared_ptr<Film> film = new_test_film ("audio_decoder_test");
141 content.reset (new TestAudioContent (film));
142 decoder.reset (new TestAudioDecoder (content));
149 /* Read off the end */
151 AudioFrame const from = content->resampled_audio_frame_rate() * 61;
152 AudioFrame const length = content->resampled_audio_frame_rate() * 4;
153 shared_ptr<ContentAudio> ca = get (from, length);
155 for (int i = 0; i < content->audio_channels(); ++i) {
156 for (int j = 0; j < ca->audio->frames(); ++j) {
157 BOOST_CHECK_EQUAL (ca->audio->data(i)[j], j + from);
158 assert (ca->audio->data(i)[j] == j + from);