+/*
+ Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
+
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ DCP-o-matic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "lib/content_factory.h"
+#include "lib/film.h"
+#include "test.h"
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
+#include <asdcp/Metadata.h>
+LIBDCP_ENABLE_WARNINGS
+#include <dcp/sound_asset.h>
+#include <dcp/util.h>
+#include <boost/test/unit_test.hpp>
+
+
+using std::shared_ptr;
+
+
+bool
+has_cpl_mca_subdescriptors(shared_ptr<const Film> film)
+{
+ auto cpl = dcp::file_to_string(find_file(film->dir(film->dcp_name()), "cpl_"));
+ return cpl.find("MCASubDescriptors") != std::string::npos;
+}
+
+
+bool
+has_mxf_mca_subdescriptors(shared_ptr<const Film> film)
+{
+ /* One day hopefully libdcp will read these descriptors and we can find out from the SoundAsset
+ * whether they exist.
+ */
+
+ ASDCP::PCM::MXFReader reader;
+ auto r = reader.OpenRead(find_file(film->dir(film->dcp_name()), "pcm_").string());
+ BOOST_REQUIRE(!ASDCP_FAILURE(r));
+
+ ASDCP::MXF::WaveAudioDescriptor* essence_descriptor = nullptr;
+ auto const rr = reader.OP1aHeader().GetMDObjectByType(
+ dcp::asdcp_smpte_dict->ul(ASDCP::MDD_WaveAudioDescriptor),
+ reinterpret_cast<ASDCP::MXF::InterchangeObject**>(&essence_descriptor)
+ );
+
+ if (!KM_SUCCESS(rr)) {
+ return false;
+ }
+
+ return essence_descriptor->SubDescriptors.size() > 0;
+}
+
+
+BOOST_AUTO_TEST_CASE(bv21_extensions_used_when_not_limited)
+{
+ auto picture = content_factory("test/data/flat_red.png");
+ auto sound = content_factory("test/data/sine_440.wav");
+ auto film = new_test_film2("bv21_extensions_used_when_not_limited", { picture.front(), sound.front() });
+
+ make_and_verify_dcp(film);
+
+ BOOST_CHECK(has_cpl_mca_subdescriptors(film));
+ BOOST_CHECK(has_mxf_mca_subdescriptors(film));
+}
+
+
+BOOST_AUTO_TEST_CASE(bv21_extensions_not_used_when_limited)
+{
+ auto picture = content_factory("test/data/flat_red.png");
+ auto sound = content_factory("test/data/sine_440.wav");
+ auto film = new_test_film2("bv21_extensions_not_used_when_limited", { picture.front(), sound.front () });
+ film->set_limit_to_smpte_bv20(true);
+
+ make_and_verify_dcp(film);
+
+ BOOST_CHECK(!has_cpl_mca_subdescriptors(film));
+ BOOST_CHECK(!has_mxf_mca_subdescriptors(film));
+}
+