test/remake_video_test.cc

   1 /*
   2     Copyright (C) 2024 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic 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     DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21
  22 #include "lib/content_factory.h"
  23 #include "lib/film.h"
  24 #include "lib/video_content.h"
  25 #include "test.h"
  26 #include <dcp/colour_conversion.h>
  27 #include <dcp/cpl.h>
  28 #include <dcp/dcp.h>
  29 #include <dcp/mono_picture_asset_reader.h>
  30 #include <dcp/reel.h>
  31 #include <dcp/reel_mono_picture_asset.h>
  32 #include <boost/test/unit_test.hpp>
  33
  34
  35 using std::dynamic_pointer_cast;
  36 using std::shared_ptr;
  37 using std::string;
  38 using std::vector;
  39
  40
  41 BOOST_AUTO_TEST_CASE(remake_video_after_yub_rgb_matrix_changed)
  42 {
  43         auto content = content_factory("test/data/rgb_grey_testcard.mp4")[0];
  44         auto film = new_test_film2("remake_video_after_yub_rgb_matrix_changed", { content });
  45
  46         auto conversion = content->video->colour_conversion();
  47         BOOST_REQUIRE(static_cast<bool>(conversion));
  48         conversion->set_yuv_to_rgb(dcp::YUVToRGB::REC709);
  49         content->video->set_colour_conversion(*conversion);
  50
  51         auto calculate_picture_hashes = [](shared_ptr<Film> film) {
  52                 make_and_verify_dcp(film);
  53                 dcp::DCP dcp(film->dir(film->dcp_name()));
  54                 dcp.read();
  55                 BOOST_REQUIRE(!dcp.cpls().empty());
  56                 auto cpl = dcp.cpls()[0];
  57                 BOOST_REQUIRE(!cpl->reels().empty());
  58                 auto reel = cpl->reels()[0];
  59                 BOOST_REQUIRE(reel->main_picture());
  60                 auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset>(reel->main_picture()->asset());
  61                 BOOST_REQUIRE(mono);
  62                 auto reader = mono->start_read();
  63
  64                 vector<string> hashes;
  65                 for (auto i = 0; i < reel->main_picture()->intrinsic_duration(); ++i) {
  66                         auto frame = reader->get_frame(i);
  67                         hashes.push_back(dcp::make_digest(dcp::ArrayData(frame->data(), frame->size())));
  68                 }
  69                 return hashes;
  70         };
  71
  72         auto before = calculate_picture_hashes(film);
  73         conversion->set_yuv_to_rgb(dcp::YUVToRGB::REC601);
  74         content->video->set_colour_conversion(*conversion);
  75         auto after = calculate_picture_hashes(film);
  76
  77         BOOST_CHECK(before != after);
  78 }
  79