test/mca_subdescriptors_test.cc

   1 /*
   2     Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   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.
  10
  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.
  15
  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/>.
  18
  19 */
  20
  21
  22 #include "lib/audio_content.h"
  23 #include "lib/constants.h"
  24 #include "lib/content.h"
  25 #include "lib/content_factory.h"
  26 #include "lib/film.h"
  27 #include "test.h"
  28 #include <libcxml/cxml.h>
  29 #include <boost/test/unit_test.hpp>
  30
  31
  32 using std::shared_ptr;
  33 using std::string;
  34 using std::vector;
  35
  36
  37 static
  38 void
  39 test_descriptors(int mxf_channels, vector<dcp::Channel> active_channels, vector<string> mca_tag_symbols, string group_name)
  40 {
  41         auto content = content_factory("test/data/flat_red.png");
  42         for (auto i = 0; i < mxf_channels; ++i) {
  43                 content.push_back(content_factory("test/data/C.wav").front());
  44         }
  45         auto film = new_test_film2("mca_subdescriptors_written_correctly", content);
  46         film->set_interop(false);
  47         film->set_audio_channels(mxf_channels);
  48
  49         int N = 1;
  50         for (auto channel: active_channels) {
  51                 auto mapping = AudioMapping(1, MAX_DCP_AUDIO_CHANNELS);
  52                 mapping.set(0, channel, 1);
  53                 content[N]->audio->set_mapping(mapping);
  54                 ++N;
  55         }
  56
  57         make_and_verify_dcp(film);
  58
  59         cxml::Document check("CompositionPlaylist", find_file(film->dir(film->dcp_name()), "cpl_"));
  60         vector<string> cpl_mca_tag_symbols;
  61
  62         auto mca_sub_descriptors = check.node_child("ReelList")->node_child("Reel")->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors");
  63
  64         for (auto node: mca_sub_descriptors->node_children("AudioChannelLabelSubDescriptor")) {
  65                 cpl_mca_tag_symbols.push_back(node->string_child("MCATagSymbol"));
  66         }
  67
  68         auto const cpl_group_name = mca_sub_descriptors->node_child("SoundfieldGroupLabelSubDescriptor")->string_child("MCATagSymbol");
  69
  70         BOOST_CHECK(cpl_mca_tag_symbols == mca_tag_symbols);
  71         BOOST_CHECK(cpl_group_name == group_name);
  72 }
  73
  74
  75 /* This seems like an impossible case but let's check it anyway */
  76 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_mono_in_2_channel)
  77 {
  78         test_descriptors(2, { dcp::Channel::CENTRE }, { "chL", "chR" }, "sg51");
  79 }
  80
  81
  82 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_mono_in_6_channel)
  83 {
  84         test_descriptors(6, { dcp::Channel::CENTRE }, { "chL", "chR", "chC", "chLFE", "chLs", "chRs" }, "sg51");
  85 }
  86
  87
  88 /* If we only have two channels in the MXF we shouldn't see any extra descriptors */
  89 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_stereo_in_2_channel)
  90 {
  91         test_descriptors(2, { dcp::Channel::LEFT, dcp::Channel::RIGHT }, { "chL", "chR" }, "sg51");
  92 }
  93
  94
  95 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_stereo_in_6_channel)
  96 {
  97         test_descriptors(6, { dcp::Channel::LEFT, dcp::Channel::RIGHT }, { "chL", "chR", "chC", "chLFE", "chLs", "chRs" }, "sg51");
  98 }
  99
 100
 101 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_51)
 102 {
 103         test_descriptors(6,
 104                 {
 105                         dcp::Channel::LEFT,
 106                         dcp::Channel::RIGHT,
 107                         dcp::Channel::CENTRE,
 108                         dcp::Channel::LFE,
 109                         dcp::Channel::LS,
 110                         dcp::Channel::RS,
 111                 },
 112                 { "chL", "chR", "chC", "chLFE", "chLs", "chRs" },
 113                 "sg51"
 114                 );
 115 }
 116
 117
 118 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_51_with_hi_vi)
 119 {
 120         test_descriptors(8,
 121                 {
 122                         dcp::Channel::LEFT,
 123                         dcp::Channel::RIGHT,
 124                         dcp::Channel::CENTRE,
 125                         dcp::Channel::LFE,
 126                         dcp::Channel::LS,
 127                         dcp::Channel::RS,
 128                         dcp::Channel::HI,
 129                         dcp::Channel::VI,
 130                 },
 131                 { "chL", "chR", "chC", "chLFE", "chLs", "chRs", "chHI", "chVIN" },
 132                 "sg51"
 133                 );
 134 }
 135
 136
 137 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_71)
 138 {
 139         test_descriptors(16,
 140                 {
 141                         dcp::Channel::LEFT,
 142                         dcp::Channel::RIGHT,
 143                         dcp::Channel::CENTRE,
 144                         dcp::Channel::LFE,
 145                         dcp::Channel::LS,
 146                         dcp::Channel::RS,
 147                         dcp::Channel::BSL,
 148                         dcp::Channel::BSR,
 149                 },
 150                 { "chL", "chR", "chC", "chLFE", "chLss", "chRss", "chLrs", "chRrs" },
 151                 "sg71"
 152                 );
 153 }
 154
 155
 156 BOOST_AUTO_TEST_CASE(mca_subdescriptors_written_correctly_71_with_hi_vi)
 157 {
 158         test_descriptors(16,
 159                 {
 160                         dcp::Channel::LEFT,
 161                         dcp::Channel::RIGHT,
 162                         dcp::Channel::CENTRE,
 163                         dcp::Channel::LFE,
 164                         dcp::Channel::LS,
 165                         dcp::Channel::RS,
 166                         dcp::Channel::HI,
 167                         dcp::Channel::VI,
 168                         dcp::Channel::BSL,
 169                         dcp::Channel::BSR,
 170                 },
 171                 { "chL", "chR", "chC", "chLFE", "chLss", "chRss", "chHI", "chVIN", "chLrs", "chRrs" },
 172                 "sg71"
 173                 );
 174 }