test/mca_test.cc

   1 /*
   2     Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of libdcp.
   5
   6     libdcp 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     libdcp 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 libdcp.  If not, see <http://www.gnu.org/licenses/>.
  18
  19     In addition, as a special exception, the copyright holders give
  20     permission to link the code of portions of this program with the
  21     OpenSSL library under certain conditions as described in each
  22     individual source file, and distribute linked combinations
  23     including the two.
  24
  25     You must obey the GNU General Public License in all respects
  26     for all of the code used other than OpenSSL.  If you modify
  27     file(s) with this exception, you may extend this exception to your
  28     version of the file(s), but you are not obligated to do so.  If you
  29     do not wish to do so, delete this exception statement from your
  30     version.  If you delete this exception statement from all source
  31     files in the program, then also delete it here.
  32 */
  33
  34
  35 #include "compose.hpp"
  36 #include "cpl.h"
  37 #include "reel.h"
  38 #include "reel_sound_asset.h"
  39 #include "sound_asset.h"
  40 #include "sound_asset_writer.h"
  41 #include "test.h"
  42 #include <libcxml/cxml.h>
  43 #include <libxml++/libxml++.h>
  44 #include <boost/test/unit_test.hpp>
  45
  46
  47 using std::list;
  48 using std::string;
  49 using std::vector;
  50 using std::shared_ptr;
  51
  52
  53 /** Check that when we read a MXF and write its MCA metadata to a CPL we get the same answer
  54  *  as the original MXF for that CPL (for a couple of different MXFs).
  55  */
  56 BOOST_AUTO_TEST_CASE (parse_mca_descriptors_from_mxf_test)
  57 {
  58         for (int i = 1; i < 3; ++i) {
  59                 shared_ptr<dcp::SoundAsset> sound_asset(new dcp::SoundAsset(private_test / "data" / dcp::String::compose("51_sound_with_mca_%1.mxf", i)));
  60                 shared_ptr<dcp::ReelSoundAsset> reel_sound_asset(new dcp::ReelSoundAsset(sound_asset, 0));
  61                 shared_ptr<dcp::Reel> reel(new dcp::Reel());
  62                 reel->add (black_picture_asset(dcp::String::compose("build/test/parse_mca_descriptors_from_mxf_test%1", i), 24));
  63                 reel->add (reel_sound_asset);
  64
  65                 dcp::CPL cpl("", dcp::ContentKind::FEATURE);
  66                 cpl.add (reel);
  67                 cpl.set_main_sound_configuration("51/L,R,C,LFE,Ls,Rs");
  68                 cpl.set_main_sound_sample_rate(48000);
  69                 cpl.set_main_picture_stored_area(dcp::Size(1998, 1080));
  70                 cpl.set_main_picture_active_area(dcp::Size(1998, 1080));
  71                 cpl.write_xml (dcp::String::compose("build/test/parse_mca_descriptors_from_mxf_test%1/cpl.xml", i), dcp::Standard::SMPTE, shared_ptr<dcp::CertificateChain>());
  72
  73                 cxml::Document ref("CompositionPlaylist", private_test / dcp::String::compose("51_sound_with_mca_%1.cpl", i));
  74                 cxml::Document check("CompositionPlaylist", dcp::String::compose("build/test/parse_mca_descriptors_from_mxf_test%1/cpl.xml", i));
  75
  76                 vector<string> ignore;
  77                 check_xml (
  78                         dynamic_cast<xmlpp::Element*>(
  79                                 ref.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
  80                                 ),
  81                         dynamic_cast<xmlpp::Element*>(
  82                                 check.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
  83                                 ),
  84                         ignore,
  85                         true
  86                         );
  87         }
  88 }
  89
  90
  91 /** Reproduce the MCA tags from one of the example files using libdcp */
  92 BOOST_AUTO_TEST_CASE (write_mca_descriptors_to_mxf_test)
  93 {
  94         shared_ptr<dcp::SoundAsset> sound_asset(new dcp::SoundAsset(dcp::Fraction(24, 1), 48000, 6, dcp::LanguageTag("en-US"), dcp::Standard::SMPTE));
  95         shared_ptr<dcp::SoundAssetWriter> writer = sound_asset->start_write("build/test/write_mca_descriptors_to_mxf_test.mxf");
  96
  97         float* samples[6];
  98         for (int i = 0; i < 6; ++i) {
  99                 samples[i] = new float[2000];
 100                 memset (samples[i], 0, 2000 * sizeof(float));
 101         }
 102         for (int i = 0; i < 24; ++i) {
 103                 writer->write(samples, 2000);
 104         }
 105         for (int i = 0; i < 6; ++i) {
 106                 delete[] samples[i];
 107         }
 108
 109         writer->finalize();
 110
 111         /* Make a CPL as a roundabout way to read the metadata we just wrote to the MXF */
 112
 113         shared_ptr<dcp::ReelSoundAsset> reel_sound_asset(new dcp::ReelSoundAsset(sound_asset, 0));
 114         shared_ptr<dcp::Reel> reel(new dcp::Reel());
 115         reel->add (black_picture_asset("build/test/write_mca_descriptors_to_mxf_test", 24));
 116         reel->add (reel_sound_asset);
 117
 118         dcp::CPL cpl("", dcp::ContentKind::FEATURE);
 119         cpl.add (reel);
 120         cpl.set_main_sound_configuration("51/L,R,C,LFE,Ls,Rs");
 121         cpl.set_main_sound_sample_rate(48000);
 122         cpl.set_main_picture_stored_area(dcp::Size(1998, 1080));
 123         cpl.set_main_picture_active_area(dcp::Size(1998, 1080));
 124         cpl.write_xml ("build/test/write_mca_descriptors_to_mxf_test/cpl.xml", dcp::Standard::SMPTE, shared_ptr<dcp::CertificateChain>());
 125
 126         cxml::Document ref("CompositionPlaylist", private_test / "51_sound_with_mca_1.cpl");
 127         cxml::Document check("CompositionPlaylist", "build/test/write_mca_descriptors_to_mxf_test/cpl.xml");
 128
 129         vector<string> ignore;
 130         ignore.push_back ("InstanceID");
 131         ignore.push_back ("MCALinkID");
 132         ignore.push_back ("SoundfieldGroupLinkID");
 133
 134         check_xml (
 135                 dynamic_cast<xmlpp::Element*>(
 136                         ref.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
 137                         ),
 138                 dynamic_cast<xmlpp::Element*>(
 139                         check.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
 140                         ),
 141                 ignore,
 142                 true
 143                 );
 144 }
 145