1 files changed, 95 insertions, 0 deletions
diff --git a/test/bv20_test.cc b/test/bv20_test.cc
new file mode 100644
index 000000000..5530a05d0
--- /dev/null
+++ b/test/bv20_test.cc
@@ -0,0 +1,95 @@
+/*
+    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));
+}
+