test/dcp_subtitle_test.cc

   1 /*
   2     Copyright (C) 2014-2021 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 /** @file  test/dcp_subtitle_test.cc
  23  *  @brief Test DCP subtitle content in various ways.
  24  *  @ingroup feature
  25  */
  26
  27
  28 #include "lib/content_text.h"
  29 #include "lib/dcp_content.h"
  30 #include "lib/dcp_content_type.h"
  31 #include "lib/dcp_decoder.h"
  32 #include "lib/dcp_subtitle_content.h"
  33 #include "lib/dcp_subtitle_decoder.h"
  34 #include "lib/film.h"
  35 #include "lib/font.h"
  36 #include "lib/ratio.h"
  37 #include "lib/text_content.h"
  38 #include "lib/text_decoder.h"
  39 #include "test.h"
  40 #include <dcp/mono_picture_asset.h>
  41 #include <dcp/openjpeg_image.h>
  42 #include <dcp/smpte_subtitle_asset.h>
  43 #include <boost/test/unit_test.hpp>
  44 #include <iostream>
  45
  46
  47 using std::cout;
  48 using std::list;
  49 using std::make_shared;
  50 using std::shared_ptr;
  51 using std::vector;
  52 using boost::optional;
  53 #if BOOST_VERSION >= 106100
  54 using namespace boost::placeholders;
  55 #endif
  56 using namespace dcpomatic;
  57
  58
  59 optional<ContentStringText> stored;
  60
  61
  62 static void
  63 store (ContentStringText sub)
  64 {
  65         if (!stored) {
  66                 stored = sub;
  67         } else {
  68                 for (auto i: sub.subs) {
  69                         stored->subs.push_back (i);
  70                 }
  71         }
  72 }
  73
  74
  75 /** Test pass-through of a very simple DCP subtitle file */
  76 BOOST_AUTO_TEST_CASE (dcp_subtitle_test)
  77 {
  78         auto film = new_test_film ("dcp_subtitle_test");
  79         film->set_container (Ratio::from_id ("185"));
  80         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("TLR"));
  81         film->set_name ("frobozz");
  82         film->set_interop (false);
  83         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub.xml");
  84         film->examine_and_add_content (content);
  85         BOOST_REQUIRE (!wait_for_jobs ());
  86
  87         BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(2).get());
  88
  89         content->only_text()->set_use (true);
  90         content->only_text()->set_burn (false);
  91         make_and_verify_dcp (
  92                 film,
  93                 {
  94                         dcp::VerificationNote::Code::MISSING_SUBTITLE_LANGUAGE,
  95                         dcp::VerificationNote::Code::INVALID_SUBTITLE_FIRST_TEXT_TIME,
  96                         dcp::VerificationNote::Code::MISSING_CPL_METADATA
  97                 });
  98
  99         /* This test is concerned with the subtitles, so we'll ignore any
 100          * differences in sound between the DCP and the reference to avoid test
 101          * failures for unrelated reasons.
 102          */
 103         check_dcp("test/data/dcp_subtitle_test", film->dir(film->dcp_name()), true);
 104 }
 105
 106
 107 /** Test parsing of a subtitle within an existing DCP */
 108 BOOST_AUTO_TEST_CASE (dcp_subtitle_within_dcp_test)
 109 {
 110         auto film = new_test_film ("dcp_subtitle_within_dcp_test");
 111         film->set_container (Ratio::from_id ("185"));
 112         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("TLR"));
 113         film->set_name ("frobozz");
 114         auto content = make_shared<DCPContent>(TestPaths::private_data() / "JourneyToJah_TLR-1_F_EN-DE-FR_CH_51_2K_LOK_20140225_DGL_SMPTE_OV");
 115         film->examine_and_add_content (content);
 116         BOOST_REQUIRE (!wait_for_jobs ());
 117
 118         auto decoder = make_shared<DCPDecoder>(film, content, false, false, shared_ptr<DCPDecoder>());
 119         decoder->only_text()->PlainStart.connect (bind (store, _1));
 120
 121         stored = optional<ContentStringText> ();
 122         while (!decoder->pass() && !stored) {}
 123
 124         BOOST_REQUIRE (stored);
 125         BOOST_REQUIRE_EQUAL (stored->subs.size(), 2U);
 126         BOOST_CHECK_EQUAL (stored->subs.front().text(), "Noch mal.");
 127         BOOST_CHECK_EQUAL (stored->subs.back().text(), "Encore une fois.");
 128 }
 129
 130 /** Test subtitles whose text includes things like &lt;b&gt; */
 131 BOOST_AUTO_TEST_CASE (dcp_subtitle_test2)
 132 {
 133         auto film = new_test_film ("dcp_subtitle_test2");
 134         film->set_container (Ratio::from_id ("185"));
 135         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("TLR"));
 136         film->set_name ("frobozz");
 137         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub2.xml");
 138         film->examine_and_add_content (content);
 139         BOOST_REQUIRE (!wait_for_jobs ());
 140
 141         auto decoder = make_shared<DCPSubtitleDecoder>(film, content);
 142         decoder->only_text()->PlainStart.connect (bind (store, _1));
 143
 144         stored = optional<ContentStringText> ();
 145         while (!decoder->pass()) {
 146                 if (stored && stored->from() == ContentTime(0)) {
 147                         /* Text passed around by the player should be unescaped */
 148                         BOOST_CHECK_EQUAL(stored->subs.front().text(), "<b>Hello world!</b>");
 149                 }
 150         }
 151 }
 152
 153
 154 /** Test a failure case */
 155 BOOST_AUTO_TEST_CASE (dcp_subtitle_test3)
 156 {
 157         auto film = new_test_film ("dcp_subtitle_test3");
 158         film->set_container (Ratio::from_id ("185"));
 159         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("TLR"));
 160         film->set_name ("frobozz");
 161         film->set_interop (true);
 162         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub3.xml");
 163         film->examine_and_add_content (content);
 164         BOOST_REQUIRE (!wait_for_jobs ());
 165
 166         make_and_verify_dcp (film, { dcp::VerificationNote::Code::INVALID_STANDARD });
 167
 168         auto decoder = make_shared<DCPSubtitleDecoder>(film, content);
 169         stored = optional<ContentStringText> ();
 170         while (!decoder->pass ()) {
 171                 decoder->only_text()->PlainStart.connect (bind (store, _1));
 172                 if (stored && stored->from() == ContentTime::from_seconds(0.08)) {
 173                         auto s = stored->subs;
 174                         auto i = s.begin ();
 175                         BOOST_CHECK_EQUAL (i->text(), "This");
 176                         ++i;
 177                         BOOST_REQUIRE (i != s.end ());
 178                         BOOST_CHECK_EQUAL (i->text(), " is ");
 179                         ++i;
 180                         BOOST_REQUIRE (i != s.end ());
 181                         BOOST_CHECK_EQUAL (i->text(), "wrong.");
 182                         ++i;
 183                         BOOST_REQUIRE (i == s.end ());
 184                 }
 185         }
 186 }
 187
 188
 189 /** Check that Interop DCPs aren't made with more than one <LoadFont> (#1273) */
 190 BOOST_AUTO_TEST_CASE (dcp_subtitle_test4)
 191 {
 192         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub3.xml");
 193         auto content2 = make_shared<DCPSubtitleContent>("test/data/dcp_sub3.xml");
 194         auto film = new_test_film2 ("dcp_subtitle_test4", {content, content2});
 195         film->set_interop (true);
 196
 197         content->only_text()->add_font(make_shared<Font>("font1"));
 198         content2->only_text()->add_font(make_shared<Font>("font2"));
 199
 200         make_and_verify_dcp (film, { dcp::VerificationNote::Code::INVALID_STANDARD });
 201
 202         cxml::Document doc ("DCSubtitle");
 203         doc.read_file (subtitle_file (film));
 204         BOOST_REQUIRE_EQUAL (doc.node_children("LoadFont").size(), 1U);
 205 }
 206
 207
 208 static
 209 void
 210 check_font_tags (vector<cxml::NodePtr> nodes)
 211 {
 212         for (auto i: nodes) {
 213                 if (i->name() == "Font") {
 214                         BOOST_CHECK (!i->optional_string_attribute("Id") || i->string_attribute("Id") != "");
 215                 }
 216                 check_font_tags (i->node_children());
 217         }
 218 }
 219
 220
 221 /** Check that imported <LoadFont> tags with empty IDs (or corresponding Font tags with empty IDs)
 222  *  are not passed through into the DCP.
 223  */
 224 BOOST_AUTO_TEST_CASE (dcp_subtitle_test5)
 225 {
 226         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub6.xml");
 227         auto film = new_test_film2 ("dcp_subtitle_test5", {content});
 228         film->set_interop (true);
 229
 230         make_and_verify_dcp (film, { dcp::VerificationNote::Code::INVALID_STANDARD });
 231
 232         cxml::Document doc ("DCSubtitle");
 233         doc.read_file (subtitle_file(film));
 234         BOOST_REQUIRE_EQUAL (doc.node_children("LoadFont").size(), 1U);
 235         BOOST_CHECK (doc.node_children("LoadFont").front()->string_attribute("Id") != "");
 236
 237         check_font_tags (doc.node_children());
 238 }
 239
 240
 241 /** Check that fonts specified in the DoM content are used in the output and not ignored (#2074) */
 242 BOOST_AUTO_TEST_CASE (test_font_override)
 243 {
 244         auto content = make_shared<DCPSubtitleContent>("test/data/dcp_sub4.xml");
 245         auto film = new_test_film2("test_font_override", {content});
 246         film->set_interop(true);
 247
 248         BOOST_REQUIRE_EQUAL(content->text.size(), 1U);
 249         content->text.front()->get_font("theFontId")->set_file("test/data/Inconsolata-VF.ttf");
 250
 251         make_and_verify_dcp (film, { dcp::VerificationNote::Code::INVALID_STANDARD });
 252         check_file (subtitle_file(film).parent_path() / "font_0.ttf", "test/data/Inconsolata-VF.ttf");
 253 }
 254
 255
 256 BOOST_AUTO_TEST_CASE(entity_from_dcp_source)
 257 {
 258         std::ofstream source_xml("build/test/entity_from_dcp_source.xml");
 259         source_xml
 260                 << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 261                 << "<SubtitleReel xmlns=\"http://www.smpte-ra.org/schemas/428-7/2010/DCST\" xmlns:xs=\"http://www.w3.org/2001/XMLSchema\">\n"
 262                 << "<Id>urn:uuid:9c0a0a67-ffd8-4c65-8b5a-c6be3ef182c5</Id>\n"
 263                 << "<ContentTitleText>DCP</ContentTitleText>\n"
 264                 << "<IssueDate>2022-11-30T18:13:56.000+01:00</IssueDate>\n"
 265                 << "<ReelNumber>1</ReelNumber>\n"
 266                 << "<EditRate>24 1</EditRate>\n"
 267                 << "<TimeCodeRate>24</TimeCodeRate>\n"
 268                 << "<StartTime>00:00:00:00</StartTime>\n"
 269                 << "<LoadFont ID=\"font\">urn:uuid:899e5c59-50f6-467b-985b-8282c020e1ee</LoadFont>\n"
 270                 << "<SubtitleList>\n"
 271                 << "<Font AspectAdjust=\"1.0\" Color=\"FFFFFFFF\" Effect=\"none\" EffectColor=\"FF000000\" ID=\"font\" Italic=\"no\" Script=\"normal\" Size=\"48\" Underline=\"no\" Weight=\"normal\">\n"
 272                 << "<Subtitle SpotNumber=\"1\" TimeIn=\"00:00:00:00\" TimeOut=\"00:00:10:00\" FadeUpTime=\"00:00:00:00\" FadeDownTime=\"00:00:00:00\">\n"
 273                 << "<Text Valign=\"top\" Vposition=\"82.7273\">Hello &amp; world</Text>\n"
 274                 << "</Subtitle>\n"
 275                 << "</Font>\n"
 276                 << "</SubtitleList>\n"
 277                 << "</SubtitleReel>\n";
 278         source_xml.close();
 279
 280         auto content = make_shared<DCPSubtitleContent>("build/test/entity_from_dcp_source.xml");
 281         auto film = new_test_film2("entity_from_dcp_source", { content });
 282         film->set_interop(false);
 283         content->only_text()->set_use(true);
 284         content->only_text()->set_burn(false);
 285         make_and_verify_dcp (
 286                 film,
 287                 {
 288                         dcp::VerificationNote::Code::MISSING_SUBTITLE_LANGUAGE,
 289                         dcp::VerificationNote::Code::INVALID_SUBTITLE_FIRST_TEXT_TIME,
 290                         dcp::VerificationNote::Code::MISSING_CPL_METADATA,
 291                         dcp::VerificationNote::Code::INVALID_SUBTITLE_DURATION,
 292                         dcp::VerificationNote::Code::INVALID_SUBTITLE_SPACING,
 293                 });
 294
 295         dcp::SMPTESubtitleAsset check(dcp_file(film, "sub_"));
 296         auto subs = check.subtitles();
 297         BOOST_REQUIRE_EQUAL(subs.size(), 1U);
 298         auto sub = std::dynamic_pointer_cast<const dcp::SubtitleString>(subs[0]);
 299         BOOST_REQUIRE(sub);
 300         /* libdcp::SubtitleAsset gets the text from the XML with get_content(), which
 301          * resolves the 5 predefined entities & " < > ' so we shouldn't see any
 302          * entity here.
 303          */
 304         BOOST_CHECK_EQUAL(sub->text(), "Hello & world");
 305
 306         /* It should be escaped in the raw XML though */
 307         BOOST_REQUIRE(static_cast<bool>(check.raw_xml()));
 308         BOOST_CHECK(check.raw_xml()->find("Hello &amp; world") != std::string::npos);
 309
 310         /* Remake with burn */
 311         content->only_text()->set_burn(true);
 312         boost::filesystem::remove_all(film->dir(film->dcp_name()));
 313         make_and_verify_dcp (
 314                 film,
 315                 {
 316                         dcp::VerificationNote::Code::MISSING_SUBTITLE_LANGUAGE,
 317                         dcp::VerificationNote::Code::INVALID_SUBTITLE_FIRST_TEXT_TIME,
 318                         dcp::VerificationNote::Code::MISSING_CPL_METADATA,
 319                         dcp::VerificationNote::Code::INVALID_SUBTITLE_DURATION,
 320                         dcp::VerificationNote::Code::INVALID_SUBTITLE_SPACING,
 321                 });
 322
 323         dcp::MonoPictureAsset burnt(dcp_file(film, "j2c_"));
 324         auto frame = burnt.start_read()->get_frame(12)->xyz_image();
 325         auto const size = frame->size();
 326         int max_X = 0;
 327         for (auto y = 0; y < size.height; ++y) {
 328                 for (auto x = 0; x < size.width; ++x) {
 329                         max_X = std::max(frame->data(0)[x + y * size.width], max_X);
 330                 }
 331         }
 332
 333         /* Check that the subtitle got rendered to the image; if the escaping of the & is wrong Pango
 334          * will throw errors and nothing will be rendered.
 335          */
 336         BOOST_CHECK(max_X > 100);
 337 }
 338