2 Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file test/silence_padding_test.cc
22 * @brief Test the padding (with silence) of a mono source to a 6-channel DCP.
25 #include "lib/ffmpeg_content.h"
27 #include "lib/dcp_content_type.h"
28 #include "lib/ratio.h"
32 #include <dcp/sound_asset.h>
33 #include <dcp/sound_frame.h>
35 #include <dcp/reel_sound_asset.h>
36 #include <dcp/sound_asset_reader.h>
37 #include <boost/test/unit_test.hpp>
40 using boost::lexical_cast;
41 using boost::shared_ptr;
44 test_silence_padding (int channels)
46 string const film_name = "silence_padding_test_" + lexical_cast<string> (channels);
47 shared_ptr<Film> film = new_test_film (film_name);
48 film->set_dcp_content_type (DCPContentType::from_isdcf_name ("FTR"));
49 film->set_container (Ratio::from_id ("185"));
50 film->set_name (film_name);
52 shared_ptr<FFmpegContent> content (new FFmpegContent (film, "test/data/staircase.wav"));
53 film->examine_and_add_content (content);
56 film->set_audio_channels (channels);
60 boost::filesystem::path path = "build/test";
62 path /= film->dcp_name ();
63 dcp::DCP check (path.string ());
66 shared_ptr<const dcp::ReelSoundAsset> sound_asset = check.cpls().front()->reels().front()->main_sound ();
67 BOOST_CHECK (sound_asset);
68 BOOST_CHECK_EQUAL (sound_asset->asset()->channels (), channels);
70 /* Sample index in the DCP */
72 /* DCP sound asset frame */
75 while (n < sound_asset->asset()->intrinsic_duration()) {
76 shared_ptr<const dcp::SoundFrame> sound_frame = sound_asset->asset()->start_read()->get_frame (frame++);
77 uint8_t const * d = sound_frame->data ();
79 for (int i = 0; i < sound_frame->size(); i += (3 * sound_asset->asset()->channels())) {
81 if (sound_asset->asset()->channels() > 0) {
82 /* L should be silent */
83 int const sample = d[i + 0] | (d[i + 1] << 8);
84 BOOST_CHECK_EQUAL (sample, 0);
87 if (sound_asset->asset()->channels() > 1) {
88 /* R should be silent */
89 int const sample = d[i + 2] | (d[i + 3] << 8);
90 BOOST_CHECK_EQUAL (sample, 0);
93 if (sound_asset->asset()->channels() > 2) {
94 /* Mono input so it will appear on centre */
95 int const sample = d[i + 7] | (d[i + 8] << 8);
96 BOOST_CHECK_EQUAL (sample, n);
99 if (sound_asset->asset()->channels() > 3) {
100 /* Lfe should be silent */
101 int const sample = d[i + 9] | (d[i + 10] << 8);
102 BOOST_CHECK_EQUAL (sample, 0);
105 if (sound_asset->asset()->channels() > 4) {
106 /* Ls should be silent */
107 int const sample = d[i + 11] | (d[i + 12] << 8);
108 BOOST_CHECK_EQUAL (sample, 0);
112 if (sound_asset->asset()->channels() > 5) {
113 /* Rs should be silent */
114 int const sample = d[i + 13] | (d[i + 14] << 8);
115 BOOST_CHECK_EQUAL (sample, 0);
124 BOOST_AUTO_TEST_CASE (silence_padding_test)
126 for (int i = 1; i < MAX_DCP_AUDIO_CHANNELS; ++i) {
127 test_silence_padding (i);