2 Copyright (C) 2016-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
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.
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.
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/>.
22 /** @file test/bandwidth_test.cc
23 * @brief Test whether we output whatever J2K bandwidth is requested.
29 #include "lib/dcp_content_type.h"
31 #include "lib/image_content.h"
32 #include "lib/video_content.h"
33 #include <dcp/raw_convert.h>
34 #include <boost/test/unit_test.hpp>
37 using std::make_shared;
42 check (int target_bits_per_second)
44 int const duration = 10;
46 string const name = "bandwidth_test_" + dcp::raw_convert<string> (target_bits_per_second);
47 auto film = new_test_film (name);
48 film->set_name (name);
49 film->set_dcp_content_type (DCPContentType::from_isdcf_name ("FTR"));
50 film->set_j2k_bandwidth (target_bits_per_second);
51 auto content = make_shared<ImageContent>(TestPaths::private_data() / "prophet_frame.tiff");
52 film->examine_and_add_content (content);
53 BOOST_REQUIRE (!wait_for_jobs());
54 content->video->set_length (24 * duration);
58 dcp::VerificationNote::Code::MISSING_FFMC_IN_FEATURE,
59 dcp::VerificationNote::Code::MISSING_FFEC_IN_FEATURE,
60 dcp::VerificationNote::Code::NEARLY_INVALID_PICTURE_FRAME_SIZE_IN_BYTES,
61 dcp::VerificationNote::Code::INVALID_PICTURE_FRAME_SIZE_IN_BYTES
64 boost::filesystem::directory_iterator i (boost::filesystem::path("build") / "test" / name / "video");
65 boost::filesystem::path test = *i++;
66 BOOST_REQUIRE (i == boost::filesystem::directory_iterator());
68 double actual_bits_per_second = boost::filesystem::file_size(test) * 8.0 / duration;
70 /* Check that we're within 85% to 115% of target on average */
71 BOOST_CHECK ((actual_bits_per_second / target_bits_per_second) > 0.85);
72 BOOST_CHECK ((actual_bits_per_second / target_bits_per_second) < 1.15);
76 BOOST_AUTO_TEST_CASE (bandwidth_test)