--- /dev/null
+/*
+ Copyright (C) 2024 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 "lib/video_content.h"
+#include "test.h"
+#include <dcp/colour_conversion.h>
+#include <dcp/cpl.h>
+#include <dcp/dcp.h>
+#include <dcp/mono_picture_asset_reader.h>
+#include <dcp/reel.h>
+#include <dcp/reel_mono_picture_asset.h>
+#include <boost/test/unit_test.hpp>
+
+
+using std::dynamic_pointer_cast;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+
+
+BOOST_AUTO_TEST_CASE(remake_video_after_yub_rgb_matrix_changed)
+{
+ auto content = content_factory("test/data/rgb_grey_testcard.mp4")[0];
+ auto film = new_test_film2("remake_video_after_yub_rgb_matrix_changed", { content });
+
+ auto conversion = content->video->colour_conversion();
+ BOOST_REQUIRE(static_cast<bool>(conversion));
+ conversion->set_yuv_to_rgb(dcp::YUVToRGB::REC709);
+ content->video->set_colour_conversion(*conversion);
+
+ auto calculate_picture_hashes = [](shared_ptr<Film> film) {
+ make_and_verify_dcp(film);
+ dcp::DCP dcp(film->dir(film->dcp_name()));
+ dcp.read();
+ BOOST_REQUIRE(!dcp.cpls().empty());
+ auto cpl = dcp.cpls()[0];
+ BOOST_REQUIRE(!cpl->reels().empty());
+ auto reel = cpl->reels()[0];
+ BOOST_REQUIRE(reel->main_picture());
+ auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset>(reel->main_picture()->asset());
+ BOOST_REQUIRE(mono);
+ auto reader = mono->start_read();
+
+ vector<string> hashes;
+ for (auto i = 0; i < reel->main_picture()->intrinsic_duration(); ++i) {
+ auto frame = reader->get_frame(i);
+ hashes.push_back(dcp::make_digest(dcp::ArrayData(frame->data(), frame->size())));
+ }
+ return hashes;
+ };
+
+ auto before = calculate_picture_hashes(film);
+ conversion->set_yuv_to_rgb(dcp::YUVToRGB::REC601);
+ content->video->set_colour_conversion(*conversion);
+ auto after = calculate_picture_hashes(film);
+
+ BOOST_CHECK(before != after);
+}
+