Add another test.

diff --git a/test/mca_test.cc b/test/mca_test.cc
index f1d0542376919006d6e84e654c07b542f1823eda..3df03bd15576a1a625ff04031ba8ee4c60d1c0e2 100644 (file)
--- a/test/mca_test.cc
+++ b/test/mca_test.cc
@@ -37,6 +37,7 @@
 #include "reel.h"
 #include "reel_sound_asset.h"
 #include "sound_asset.h"
+#include "sound_asset_writer.h"
 #include "test.h"
 #include <libcxml/cxml.h>
 #include <libxml++/libxml++.h>
@@ -45,6 +46,7 @@
 
 using std::list;
 using std::string;
+using std::vector;
 using boost::shared_ptr;
 
 
@@ -84,3 +86,67 @@ BOOST_AUTO_TEST_CASE (parse_mca_descriptors_from_mxf_test)
                        );
        }
 }
+
+
+/** Reproduce the MCA tags from one of the example files using libdcp */
+BOOST_AUTO_TEST_CASE (write_mca_descriptors_to_mxf_test)
+{
+       shared_ptr<dcp::SoundAsset> sound_asset(new dcp::SoundAsset(dcp::Fraction(24, 1), 48000, 6, dcp::LanguageTag("en-US"), dcp::SMPTE));
+       vector<dcp::Channel> channels;
+       channels.push_back (dcp::LEFT);
+       channels.push_back (dcp::RIGHT);
+       channels.push_back (dcp::CENTRE);
+       channels.push_back (dcp::LFE);
+       channels.push_back (dcp::LS);
+       channels.push_back (dcp::RS);
+       shared_ptr<dcp::SoundAssetWriter> writer = sound_asset->start_write("build/test/write_mca_descriptors_to_mxf_test.mxf", channels);
+
+       float* samples[6];
+       for (int i = 0; i < 6; ++i) {
+               samples[i] = new float[2000];
+               memset (samples[i], 0, 2000 * sizeof(float));
+       }
+       for (int i = 0; i < 24; ++i) {
+               writer->write(samples, 2000);
+       }
+       for (int i = 0; i < 6; ++i) {
+               delete[] samples[i];
+       }
+
+       writer->finalize();
+
+       /* Make a CPL as a roundabout way to read the metadata we just wrote to the MXF */
+
+       shared_ptr<dcp::ReelSoundAsset> reel_sound_asset(new dcp::ReelSoundAsset(sound_asset, 0));
+       shared_ptr<dcp::Reel> reel(new dcp::Reel());
+       reel->add (black_picture_asset("build/test/write_mca_descriptors_to_mxf_test", 24));
+       reel->add (reel_sound_asset);
+
+       dcp::CPL cpl("", dcp::FEATURE);
+       cpl.add (reel);
+       cpl.set_main_sound_configuration("51/L,R,C,LFE,Ls,Rs");
+       cpl.set_main_sound_sample_rate(48000);
+       cpl.set_main_picture_stored_area(dcp::Size(1998, 1080));
+       cpl.set_main_picture_active_area(dcp::Size(1998, 1080));
+       cpl.write_xml ("build/test/write_mca_descriptors_to_mxf_test/cpl.xml", dcp::SMPTE, shared_ptr<dcp::CertificateChain>());
+
+       cxml::Document ref("CompositionPlaylist", private_test / "51_sound_with_mca_1.cpl");
+       cxml::Document check("CompositionPlaylist", "build/test/write_mca_descriptors_to_mxf_test/cpl.xml");
+
+       list<string> ignore;
+       ignore.push_back ("InstanceID");
+       ignore.push_back ("MCALinkID");
+       ignore.push_back ("SoundfieldGroupLinkID");
+
+       check_xml (
+               dynamic_cast<xmlpp::Element*>(
+                       ref.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
+                       ),
+               dynamic_cast<xmlpp::Element*>(
+                       check.node_child("ReelList")->node_children("Reel").front()->node_child("AssetList")->node_child("CompositionMetadataAsset")->node_child("MCASubDescriptors")->node()
+                       ),
+               ignore,
+               true
+               );
+}
+