2 Copyright (C) 2013-2021 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/ffmpeg_pts_offset_test.cc
23 * @brief Check the computation of _pts_offset in FFmpegDecoder.
24 * @ingroup selfcontained
28 #include "lib/audio_content.h"
29 #include "lib/ffmpeg_audio_stream.h"
30 #include "lib/ffmpeg_content.h"
31 #include "lib/ffmpeg_decoder.h"
34 #include <boost/test/unit_test.hpp>
37 using std::make_shared;
38 using std::shared_ptr;
39 using namespace dcpomatic;
42 BOOST_AUTO_TEST_CASE (ffmpeg_pts_offset_test)
44 auto film = new_test_film ("ffmpeg_pts_offset_test");
45 auto content = make_shared<FFmpegContent>("test/data/test.mp4");
46 film->examine_and_add_content (content);
47 BOOST_REQUIRE (!wait_for_jobs());
49 content->audio = make_shared<AudioContent>(content.get());
50 content->audio->add_stream (shared_ptr<FFmpegAudioStream> (new FFmpegAudioStream));
51 content->_video_frame_rate = 24;
54 /* Sound == video so no offset required */
55 content->_first_video = ContentTime ();
56 content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
57 FFmpegDecoder decoder (film, content, false);
58 BOOST_CHECK_EQUAL (decoder._pts_offset.get(), 0);
62 /* Common offset should be removed */
63 content->_first_video = ContentTime::from_seconds (600);
64 content->ffmpeg_audio_streams().front()->first_audio = ContentTime::from_seconds (600);
65 FFmpegDecoder decoder (film, content, false);
66 BOOST_CHECK_EQUAL (decoder._pts_offset.get(), ContentTime::from_seconds(-600).get());
70 /* Video is on a frame boundary */
71 content->_first_video = ContentTime::from_frames (1, 24);
72 content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
73 FFmpegDecoder decoder (film, content, false);
74 BOOST_CHECK_EQUAL (decoder._pts_offset.get(), 0);
78 /* Video is off a frame boundary */
79 double const frame = 1.0 / 24.0;
80 content->_first_video = ContentTime::from_seconds (frame + 0.0215);
81 content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
82 FFmpegDecoder decoder (film, content, false);
83 BOOST_CHECK_CLOSE (decoder._pts_offset.seconds(), (frame - 0.0215), 0.00001);
87 /* Video is off a frame boundary and both have a common offset */
88 double const frame = 1.0 / 24.0;
89 content->_first_video = ContentTime::from_seconds (frame + 0.0215 + 4.1);
90 content->ffmpeg_audio_streams().front()->first_audio = ContentTime::from_seconds (4.1);
91 FFmpegDecoder decoder (film, content, false);
92 BOOST_CHECK_CLOSE (decoder._pts_offset.seconds(), (frame - 0.0215) - 4.1, 0.1);