2 Copyright (C) 2013-2014 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/silence_padding_test.cc
21 * @brief Test the padding (with silence) of a mono source to a 6-channel DCP.
24 #include <boost/test/unit_test.hpp>
27 #include <dcp/sound_mxf.h>
28 #include <dcp/sound_frame.h>
30 #include <dcp/reel_sound_asset.h>
31 #include "lib/sndfile_content.h"
33 #include "lib/dcp_content_type.h"
34 #include "lib/ratio.h"
38 using boost::lexical_cast;
39 using boost::shared_ptr;
42 test_silence_padding (int channels)
44 string const film_name = "silence_padding_test_" + lexical_cast<string> (channels);
45 shared_ptr<Film> film = new_test_film (film_name);
46 film->set_dcp_content_type (DCPContentType::from_isdcf_name ("FTR"));
47 film->set_container (Ratio::from_id ("185"));
48 film->set_name (film_name);
50 shared_ptr<SndfileContent> content (new SndfileContent (film, "test/data/staircase.wav"));
51 film->examine_and_add_content (content, true);
54 film->set_audio_channels (channels);
58 boost::filesystem::path path = "build/test";
60 path /= film->dcp_name ();
61 dcp::DCP check (path.string ());
64 shared_ptr<const dcp::ReelSoundAsset> sound_asset = check.cpls().front()->reels().front()->main_sound ();
65 BOOST_CHECK (sound_asset);
66 BOOST_CHECK_EQUAL (sound_asset->mxf()->channels (), channels);
68 /* Sample index in the DCP */
70 /* DCP sound asset frame */
73 while (n < sound_asset->mxf()->intrinsic_duration()) {
74 shared_ptr<const dcp::SoundFrame> sound_frame = sound_asset->mxf()->get_frame (frame++);
75 uint8_t const * d = sound_frame->data ();
77 for (int i = 0; i < sound_frame->size(); i += (3 * sound_asset->mxf()->channels())) {
79 if (sound_asset->mxf()->channels() > 0) {
80 /* L should be silent */
81 int const sample = d[i + 0] | (d[i + 1] << 8);
82 BOOST_CHECK_EQUAL (sample, 0);
85 if (sound_asset->mxf()->channels() > 1) {
86 /* R should be silent */
87 int const sample = d[i + 2] | (d[i + 3] << 8);
88 BOOST_CHECK_EQUAL (sample, 0);
91 if (sound_asset->mxf()->channels() > 2) {
92 /* Mono input so it will appear on centre */
93 int const sample = d[i + 7] | (d[i + 8] << 8);
94 BOOST_CHECK_EQUAL (sample, n);
97 if (sound_asset->mxf()->channels() > 3) {
98 /* Lfe should be silent */
99 int const sample = d[i + 9] | (d[i + 10] << 8);
100 BOOST_CHECK_EQUAL (sample, 0);
103 if (sound_asset->mxf()->channels() > 4) {
104 /* Ls should be silent */
105 int const sample = d[i + 11] | (d[i + 12] << 8);
106 BOOST_CHECK_EQUAL (sample, 0);
110 if (sound_asset->mxf()->channels() > 5) {
111 /* Rs should be silent */
112 int const sample = d[i + 13] | (d[i + 14] << 8);
113 BOOST_CHECK_EQUAL (sample, 0);
122 BOOST_AUTO_TEST_CASE (silence_padding_test)
124 for (int i = 1; i < MAX_DCP_AUDIO_CHANNELS; ++i) {
125 test_silence_padding (i);