+ png_infop info_ptr = png_create_info_struct(png_ptr);
+ BOOST_REQUIRE (info_ptr);
+
+ png_set_IHDR (png_ptr, info_ptr, image->size().width, image->size().height, bits_per_pixel, png_color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+
+ auto const width = image->size().width;
+ auto const height = image->size().height;
+ auto const stride = image->stride()[0];
+
+ vector<vector<uint8_t>> data_to_write(height);
+ for (int y = 0; y < height; ++y) {
+ data_to_write[y].resize(stride);
+ }
+
+ switch (image->pixel_format()) {
+ case AV_PIX_FMT_RGB24:
+ for (int y = 0; y < height; ++y) {
+ memcpy(data_to_write[y].data(), image->data()[0] + y * stride, stride);
+ }
+ break;
+ case AV_PIX_FMT_XYZ12LE:
+ /* 16-bit pixel values must be written MSB first */
+ for (int y = 0; y < height; ++y) {
+ data_to_write[y].resize(stride);
+ uint8_t* original = image->data()[0] + y * stride;
+ for (int x = 0; x < width * 3; ++x) {
+ data_to_write[y][x * 2] = original[1];
+ data_to_write[y][x * 2 + 1] = original[0];
+ original += 2;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ png_byte ** row_pointers = reinterpret_cast<png_byte**>(png_malloc(png_ptr, image->size().height * sizeof(png_byte *)));
+ for (int y = 0; y < height; ++y) {
+ row_pointers[y] = reinterpret_cast<png_byte*>(data_to_write[y].data());
+ }
+
+ png_write_info (png_ptr, info_ptr);
+ png_write_image (png_ptr, row_pointers);
+ png_write_end (png_ptr, info_ptr);
+
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ png_free (png_ptr, row_pointers);
+
+ dcp::ArrayData(state.data, state.size).write(file);
+}
+
+
+void
+check_ffmpeg (boost::filesystem::path ref, boost::filesystem::path check, int audio_tolerance)
+{
+ int const r = system (String::compose("ffcmp -t %1 %2 %3", audio_tolerance, ref.string(), check.string()).c_str());
+ BOOST_REQUIRE_EQUAL (WEXITSTATUS(r), 0);
+}
+
+void
+check_one_frame (boost::filesystem::path dcp_dir, int64_t index, boost::filesystem::path ref)
+{
+ dcp::DCP dcp (dcp_dir);
+ dcp.read ();
+ auto asset = dynamic_pointer_cast<dcp::MonoPictureAsset> (dcp.cpls().front()->reels().front()->main_picture()->asset());
+ BOOST_REQUIRE (asset);
+ auto frame = asset->start_read()->get_frame(index);
+ auto ref_frame (new dcp::MonoPictureFrame (ref));
+
+ auto image = frame->xyz_image ();
+ auto ref_image = ref_frame->xyz_image ();
+
+ BOOST_REQUIRE (image->size() == ref_image->size());
+
+ int off = 0;
+ for (int y = 0; y < ref_image->size().height; ++y) {
+ for (int x = 0; x < ref_image->size().width; ++x) {
+ BOOST_REQUIRE_EQUAL (ref_image->data(0)[off], image->data(0)[off]);
+ BOOST_REQUIRE_EQUAL (ref_image->data(1)[off], image->data(1)[off]);
+ BOOST_REQUIRE_EQUAL (ref_image->data(2)[off], image->data(2)[off]);
+ ++off;
+ }
+ }
+}
+
+boost::filesystem::path
+dcp_file (shared_ptr<const Film> film, string prefix)
+{
+ auto i = boost::filesystem::recursive_directory_iterator(film->dir(film->dcp_name()));
+ while (i != boost::filesystem::recursive_directory_iterator() && !boost::algorithm::starts_with(i->path().leaf().string(), prefix)) {
+ ++i;
+ }
+
+ BOOST_REQUIRE_MESSAGE(i != boost::filesystem::recursive_directory_iterator(), "Could not find file with prefix " << prefix);
+ return i->path();
+}
+
+boost::filesystem::path
+subtitle_file (shared_ptr<Film> film)
+{
+ for (auto i: boost::filesystem::recursive_directory_iterator(film->directory().get() / film->dcp_name(false))) {
+ if (boost::algorithm::starts_with(i.path().leaf().string(), "sub_")) {
+ return i.path();
+ }
+ }
+
+ BOOST_REQUIRE (false);
+ /* Remove warning */
+ return boost::filesystem::path("/");
+}
+
+
+void
+make_random_file (boost::filesystem::path path, size_t size)
+{
+ dcp::File random_file(path, "wb");
+ BOOST_REQUIRE (random_file);
+
+ boost::random::mt19937 rng(1);
+ boost::random::uniform_int_distribution<uint64_t> dist(0);
+
+ while (size > 0) {
+ auto this_time = std::min(size, size_t(8));
+ uint64_t random = dist(rng);
+ random_file.write(&random, this_time, 1);
+ size -= this_time;
+ }
+}
+
+
+LogSwitcher::LogSwitcher (shared_ptr<Log> log)
+ : _old (dcpomatic_log)
+{
+ dcpomatic_log = log;
+}
+
+
+LogSwitcher::~LogSwitcher ()
+{
+ dcpomatic_log = _old;
+}
+
+std::ostream&
+dcp::operator<< (std::ostream& s, dcp::Size i)
+{
+ s << i.width << "x" << i.height;
+ return s;
+}
+
+std::ostream&
+dcp::operator<< (std::ostream& s, dcp::Standard t)
+{
+ switch (t) {
+ case Standard::INTEROP:
+ s << "interop";
+ break;
+ case Standard::SMPTE:
+ s << "smpte";
+ break;
+ }
+ return s;
+}
+
+std::ostream&
+operator<< (std::ostream&s, VideoFrameType f)
+{
+ s << video_frame_type_to_string(f);
+ return s;
+}
+
+
+void
+Cleanup::add (boost::filesystem::path path)
+{
+ _paths.push_back (path);
+}
+
+
+void
+Cleanup::run ()
+{
+ boost::system::error_code ec;
+ for (auto i: _paths) {
+ boost::filesystem::remove_all (i, ec);
+ }
+}
+
+
+void stage (string, boost::optional<boost::filesystem::path>) {}
+void progress (float) {}
+
+
+void
+make_and_verify_dcp (shared_ptr<Film> film, vector<dcp::VerificationNote::Code> ignore)
+{
+ film->write_metadata ();
+ make_dcp (film, TranscodeJob::ChangedBehaviour::IGNORE);
+ BOOST_REQUIRE (!wait_for_jobs());
+ auto notes = dcp::verify ({film->dir(film->dcp_name())}, &stage, &progress, TestPaths::xsd());
+ bool ok = true;
+ for (auto i: notes) {
+ if (find(ignore.begin(), ignore.end(), i.code()) == ignore.end()) {
+ std::cout << "\t" << dcp::note_to_string(i) << "\n";
+ ok = false;
+ }
+ }
+ BOOST_CHECK(ok);
+}
+
+
+void
+check_int_close (int a, int b, int d)
+{
+ BOOST_CHECK_MESSAGE (std::abs(a - b) < d, a << " differs from " << b << " by more than " << d);
+}
+
+
+void
+check_int_close (std::pair<int, int> a, std::pair<int, int> b, int d)
+{
+ check_int_close (a.first, b.first, d);
+ check_int_close (a.second, b.second, d);
+}
+
+
+ConfigRestorer::~ConfigRestorer()
+{
+ setup_test_config();
+}
+
+
+boost::filesystem::path
+find_file (boost::filesystem::path dir, string filename_part)
+{
+ boost::optional<boost::filesystem::path> found;
+ for (auto i: boost::filesystem::directory_iterator(dir)) {
+ if (i.path().filename().string().find(filename_part) != string::npos) {
+ BOOST_REQUIRE (!found);
+ found = i;
+ }
+ }
+ BOOST_REQUIRE (found);
+ return *found;
+}
+
+
+Editor::Editor(boost::filesystem::path path)
+ : _path(path)
+ , _content(dcp::file_to_string(path))
+{
+
+}
+
+Editor::~Editor()
+{
+ auto f = fopen(_path.string().c_str(), "w");
+ BOOST_REQUIRE(f);
+ fwrite(_content.c_str(), _content.length(), 1, f);
+ fclose(f);
+}
+
+void
+Editor::replace(string a, string b)
+{
+ auto old_content = _content;
+ boost::algorithm::replace_all(_content, a, b);
+ BOOST_REQUIRE(_content != old_content);