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/*
Copyright (C) 2021 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.h"
#include "lib/content_factory.h"
#include "lib/film.h"
#include "lib/text_content.h"
#include "lib/video_content.h"
#include "test.h"
#include <dcp/cpl.h>
#include <dcp/dcp.h>
#include <dcp/reel.h>
#include <dcp/reel_subtitle_asset.h>
#include <boost/test/unit_test.hpp>
#include <iostream>
BOOST_AUTO_TEST_CASE (test_subtitle_timing_with_frame_rate_change)
{
using boost::filesystem::path;
constexpr auto content_frame_rate = 29.976f;
const std::string name = "test_subtitle_timing_with_frame_rate_change";
auto picture = content_factory("test/data/flat_red.png")[0];
auto sub = content_factory("test/data/hour.srt")[0];
sub->text.front()->set_language(dcp::LanguageTag("en-GB"));
auto film = new_test_film2 (name, { picture, sub });
picture->set_video_frame_rate(film, content_frame_rate);
auto const dcp_frame_rate = film->video_frame_rate();
make_and_verify_dcp (film, {dcp::VerificationNote::Code::INVALID_SUBTITLE_FIRST_TEXT_TIME, dcp::VerificationNote::Code::INVALID_PICTURE_FRAME_RATE_FOR_2K });
dcp::DCP dcp(path("build/test") / name / film->dcp_name());
dcp.read();
BOOST_REQUIRE_EQUAL(dcp.cpls().size(), 1U);
auto cpl = dcp.cpls()[0];
BOOST_REQUIRE_EQUAL(cpl->reels().size(), 1U);
auto reel = cpl->reels()[0];
BOOST_REQUIRE(reel->main_subtitle());
BOOST_REQUIRE(reel->main_subtitle()->asset());
auto subs = reel->main_subtitle()->asset()->subtitles();
int index = 0;
for (auto i: subs) {
auto error = std::abs(i->in().as_seconds() - (index * content_frame_rate / dcp_frame_rate));
BOOST_CHECK (error < (1.0f / dcp_frame_rate));
++index;
}
}
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