test/player_test.cc

   1 /*
   2     Copyright (C) 2014-2018 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 /** @file  test/player_test.cc
  22  *  @brief Test Player class.
  23  *  @ingroup selfcontained
  24  */
  25
  26 #include "lib/film.h"
  27 #include "lib/ffmpeg_content.h"
  28 #include "lib/dcp_content_type.h"
  29 #include "lib/ratio.h"
  30 #include "lib/audio_buffers.h"
  31 #include "lib/player.h"
  32 #include "lib/video_content.h"
  33 #include "lib/image_content.h"
  34 #include "lib/string_text_file_content.h"
  35 #include "lib/content_factory.h"
  36 #include "lib/dcp_content.h"
  37 #include "lib/text_content.h"
  38 #include "lib/butler.h"
  39 #include "lib/compose.hpp"
  40 #include "test.h"
  41 #include <boost/test/unit_test.hpp>
  42 #include <iostream>
  43
  44 using std::cout;
  45 using std::list;
  46 using std::pair;
  47 using boost::shared_ptr;
  48 using boost::bind;
  49 using boost::optional;
  50
  51 static shared_ptr<AudioBuffers> accumulated;
  52
  53 static void
  54 accumulate (shared_ptr<AudioBuffers> audio, DCPTime)
  55 {
  56         BOOST_REQUIRE (accumulated);
  57         accumulated->append (audio);
  58 }
  59
  60 /** Check that the Player correctly generates silence when used with a silent FFmpegContent */
  61 BOOST_AUTO_TEST_CASE (player_silence_padding_test)
  62 {
  63         shared_ptr<Film> film = new_test_film ("player_silence_padding_test");
  64         film->set_name ("player_silence_padding_test");
  65         shared_ptr<FFmpegContent> c (new FFmpegContent("test/data/test.mp4"));
  66         film->set_container (Ratio::from_id ("185"));
  67         film->set_audio_channels (6);
  68
  69         film->examine_and_add_content (c);
  70         wait_for_jobs ();
  71
  72         accumulated.reset (new AudioBuffers (film->audio_channels(), 0));
  73
  74         shared_ptr<Player> player (new Player (film, film->playlist ()));
  75         player->Audio.connect (bind (&accumulate, _1, _2));
  76         while (!player->pass ()) {}
  77         BOOST_REQUIRE (accumulated->frames() >= 48000);
  78         BOOST_CHECK_EQUAL (accumulated->channels(), film->audio_channels ());
  79
  80         for (int i = 0; i < 48000; ++i) {
  81                 for (int c = 0; c < accumulated->channels(); ++c) {
  82                         BOOST_CHECK_EQUAL (accumulated->data()[c][i], 0);
  83                 }
  84         }
  85 }
  86
  87 /* Test insertion of black frames between separate bits of video content */
  88 BOOST_AUTO_TEST_CASE (player_black_fill_test)
  89 {
  90         shared_ptr<Film> film = new_test_film ("black_fill_test");
  91         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("FTR"));
  92         film->set_name ("black_fill_test");
  93         film->set_container (Ratio::from_id ("185"));
  94         film->set_sequence (false);
  95         film->set_interop (false);
  96         shared_ptr<ImageContent> contentA (new ImageContent("test/data/simple_testcard_640x480.png"));
  97         shared_ptr<ImageContent> contentB (new ImageContent("test/data/simple_testcard_640x480.png"));
  98
  99         film->examine_and_add_content (contentA);
 100         film->examine_and_add_content (contentB);
 101         wait_for_jobs ();
 102
 103         contentA->video->set_scale (VideoContentScale (Ratio::from_id ("185")));
 104         contentA->video->set_length (3);
 105         contentA->set_position (film, DCPTime::from_frames(2, film->video_frame_rate()));
 106         contentB->video->set_scale (VideoContentScale (Ratio::from_id ("185")));
 107         contentB->video->set_length (1);
 108         contentB->set_position (film, DCPTime::from_frames(7, film->video_frame_rate()));
 109
 110         film->make_dcp ();
 111
 112         wait_for_jobs ();
 113
 114         boost::filesystem::path ref;
 115         ref = "test";
 116         ref /= "data";
 117         ref /= "black_fill_test";
 118
 119         boost::filesystem::path check;
 120         check = "build";
 121         check /= "test";
 122         check /= "black_fill_test";
 123         check /= film->dcp_name();
 124
 125         check_dcp (ref.string(), check.string());
 126 }
 127
 128 /** Check behaviour with an awkward playlist whose data does not end on a video frame start */
 129 BOOST_AUTO_TEST_CASE (player_subframe_test)
 130 {
 131         shared_ptr<Film> film = new_test_film ("reels_test7");
 132         film->set_name ("reels_test7");
 133         film->set_container (Ratio::from_id ("185"));
 134         film->set_dcp_content_type (DCPContentType::from_isdcf_name ("TST"));
 135         shared_ptr<Content> A = content_factory("test/data/flat_red.png").front();
 136         film->examine_and_add_content (A);
 137         BOOST_REQUIRE (!wait_for_jobs ());
 138         shared_ptr<Content> B = content_factory("test/data/awkward_length.wav").front();
 139         film->examine_and_add_content (B);
 140         BOOST_REQUIRE (!wait_for_jobs ());
 141         film->set_video_frame_rate (24);
 142         A->video->set_length (3 * 24);
 143
 144         BOOST_CHECK (A->full_length(film) == DCPTime::from_frames(3 * 24, 24));
 145         BOOST_CHECK (B->full_length(film) == DCPTime(289920));
 146         /* Length should be rounded up from B's length to the next video frame */
 147         BOOST_CHECK (film->length() == DCPTime::from_frames(3 * 24 + 1, 24));
 148
 149         shared_ptr<Player> player (new Player (film, film->playlist ()));
 150         player->setup_pieces ();
 151         BOOST_REQUIRE_EQUAL (player->_black._periods.size(), 1);
 152         BOOST_CHECK (player->_black._periods.front() == DCPTimePeriod(DCPTime::from_frames(3 * 24, 24), DCPTime::from_frames(3 * 24 + 1, 24)));
 153         BOOST_REQUIRE_EQUAL (player->_silent._periods.size(), 1);
 154         BOOST_CHECK (player->_silent._periods.front() == DCPTimePeriod(DCPTime(289920), DCPTime::from_frames(3 * 24 + 1, 24)));
 155 }
 156
 157 static Frame video_frames;
 158 static Frame audio_frames;
 159
 160 static void
 161 video (shared_ptr<PlayerVideo>, DCPTime)
 162 {
 163         ++video_frames;
 164 }
 165
 166 static void
 167 audio (shared_ptr<AudioBuffers> audio, DCPTime)
 168 {
 169         audio_frames += audio->frames();
 170 }
 171
 172 /** Check with a video-only file that the video and audio emissions happen more-or-less together */
 173 BOOST_AUTO_TEST_CASE (player_interleave_test)
 174 {
 175         shared_ptr<Film> film = new_test_film ("ffmpeg_transcoder_basic_test_subs");
 176         film->set_name ("ffmpeg_transcoder_basic_test");
 177         film->set_container (Ratio::from_id ("185"));
 178         film->set_audio_channels (6);
 179
 180         shared_ptr<FFmpegContent> c (new FFmpegContent("test/data/test.mp4"));
 181         film->examine_and_add_content (c);
 182         BOOST_REQUIRE (!wait_for_jobs ());
 183
 184         shared_ptr<StringTextFileContent> s (new StringTextFileContent("test/data/subrip.srt"));
 185         film->examine_and_add_content (s);
 186         BOOST_REQUIRE (!wait_for_jobs ());
 187
 188         shared_ptr<Player> player (new Player(film, film->playlist()));
 189         player->Video.connect (bind (&video, _1, _2));
 190         player->Audio.connect (bind (&audio, _1, _2));
 191         video_frames = audio_frames = 0;
 192         while (!player->pass ()) {
 193                 BOOST_CHECK (abs(video_frames - (audio_frames / 2000)) < 8);
 194         }
 195 }
 196
 197 /** Test some seeks towards the start of a DCP with awkward subtitles; see mantis #1085
 198  *  and a number of others.  I thought this was a player seek bug but in fact it was
 199  *  caused by the subtitle starting just after the start of the video frame and hence
 200  *  being faded out.
 201  */
 202 BOOST_AUTO_TEST_CASE (player_seek_test)
 203 {
 204         shared_ptr<Film> film (new Film (optional<boost::filesystem::path>()));
 205         shared_ptr<DCPContent> dcp (new DCPContent(private_data / "awkward_subs"));
 206         film->examine_and_add_content (dcp, true);
 207         BOOST_REQUIRE (!wait_for_jobs ());
 208         dcp->only_text()->set_use (true);
 209
 210         shared_ptr<Player> player (new Player (film, film->playlist()));
 211         player->set_fast ();
 212         player->set_always_burn_open_subtitles ();
 213         player->set_play_referenced ();
 214
 215         shared_ptr<Butler> butler (new Butler (player, film->log(), AudioMapping(), 2, bind(PlayerVideo::force, _1, AV_PIX_FMT_RGB24), false, true));
 216         butler->disable_audio();
 217
 218         for (int i = 0; i < 10; ++i) {
 219                 DCPTime t = DCPTime::from_frames (i, 24);
 220                 butler->seek (t, true);
 221                 pair<shared_ptr<PlayerVideo>, DCPTime> video = butler->get_video();
 222                 BOOST_CHECK_EQUAL(video.second.get(), t.get());
 223                 write_image(video.first->image(bind(PlayerVideo::force, _1, AV_PIX_FMT_RGB24), false, true), String::compose("build/test/player_seek_test_%1.png", i), "RGB");
 224                 /* This 0.011 is empirically chosen (hopefully) to accept changes in rendering between the reference and a test machine
 225                    (17.10 and 16.04 seem to anti-alias a little differently) but to reject gross errors e.g. missing fonts or missing
 226                    text altogether.
 227                 */
 228                 check_image(String::compose("test/data/player_seek_test_%1.png", i), String::compose("build/test/player_seek_test_%1.png", i), 0.011);
 229         }
 230 }
 231
 232 /** Test some more seeks towards the start of a DCP with awkward subtitles */
 233 BOOST_AUTO_TEST_CASE (player_seek_test2)
 234 {
 235         shared_ptr<Film> film (new Film (optional<boost::filesystem::path>()));
 236         shared_ptr<DCPContent> dcp (new DCPContent(private_data / "awkward_subs2"));
 237         film->examine_and_add_content (dcp, true);
 238         BOOST_REQUIRE (!wait_for_jobs ());
 239         dcp->only_text()->set_use (true);
 240
 241         shared_ptr<Player> player (new Player (film, film->playlist()));
 242         player->set_fast ();
 243         player->set_always_burn_open_subtitles ();
 244         player->set_play_referenced ();
 245
 246         shared_ptr<Butler> butler (new Butler(player, film->log(), AudioMapping(), 2, bind(PlayerVideo::force, _1, AV_PIX_FMT_RGB24), false, true));
 247         butler->disable_audio();
 248
 249         butler->seek(DCPTime::from_seconds(5), true);
 250
 251         for (int i = 0; i < 10; ++i) {
 252                 DCPTime t = DCPTime::from_seconds(5) + DCPTime::from_frames (i, 24);
 253                 butler->seek (t, true);
 254                 pair<shared_ptr<PlayerVideo>, DCPTime> video = butler->get_video();
 255                 BOOST_CHECK_EQUAL(video.second.get(), t.get());
 256                 write_image(video.first->image(bind(PlayerVideo::force, _1, AV_PIX_FMT_RGB24), false, true), String::compose("build/test/player_seek_test2_%1.png", i), "RGB");
 257                 check_image(String::compose("test/data/player_seek_test2_%1.png", i), String::compose("build/test/player_seek_test2_%1.png", i), 0.011);
 258         }
 259 }
 260
 261 /** Test a bug when trimmed content follows other content */
 262 BOOST_AUTO_TEST_CASE (player_trim_test)
 263 {
 264        shared_ptr<Film> film = new_test_film2 ("player_trim_test");
 265        shared_ptr<Content> A = content_factory("test/data/flat_red.png").front();
 266        film->examine_and_add_content (A);
 267        BOOST_REQUIRE (!wait_for_jobs ());
 268        A->video->set_length (10 * 24);
 269        shared_ptr<Content> B = content_factory("test/data/flat_red.png").front();
 270        film->examine_and_add_content (B);
 271        BOOST_REQUIRE (!wait_for_jobs ());
 272        B->video->set_length (10 * 24);
 273        B->set_position (film, DCPTime::from_seconds(10));
 274        B->set_trim_start (ContentTime::from_seconds (2));
 275
 276        film->make_dcp ();
 277        BOOST_REQUIRE (!wait_for_jobs ());
 278 }
 279
 280 struct Sub {
 281         PlayerText text;
 282         TextType type;
 283         optional<DCPTextTrack> track;
 284         DCPTimePeriod period;
 285 };
 286
 287 static void
 288 store (list<Sub>* out, PlayerText text, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
 289 {
 290         Sub s;
 291         s.text = text;
 292         s.type = type;
 293         s.track = track;
 294         s.period = period;
 295         out->push_back (s);
 296 }
 297
 298 /** Test ignoring both video and audio */
 299 BOOST_AUTO_TEST_CASE (player_ignore_video_and_audio_test)
 300 {
 301         shared_ptr<Film> film = new_test_film2 ("player_ignore_video_and_audio_test");
 302         shared_ptr<Content> ff = content_factory(private_data / "boon_telly.mkv").front();
 303         film->examine_and_add_content (ff);
 304         shared_ptr<Content> text = content_factory("test/data/subrip.srt").front();
 305         film->examine_and_add_content (text);
 306         BOOST_REQUIRE (!wait_for_jobs());
 307         text->only_text()->set_type (TEXT_CLOSED_CAPTION);
 308         text->only_text()->set_use (true);
 309
 310         shared_ptr<Player> player (new Player(film, film->playlist()));
 311         player->set_ignore_video ();
 312         player->set_ignore_audio ();
 313
 314         list<Sub> out;
 315         player->Text.connect (bind (&store, &out, _1, _2, _3, _4));
 316         while (!player->pass ()) {}
 317
 318         BOOST_CHECK_EQUAL (out.size(), 6);
 319 }