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/*
Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file test/ffmpeg_pts_offset_test.cc
* @brief Check the computation of _pts_offset in FFmpegDecoder.
* @ingroup selfcontained
*/
#include "lib/audio_content.h"
#include "lib/ffmpeg_audio_stream.h"
#include "lib/ffmpeg_content.h"
#include "lib/ffmpeg_decoder.h"
#include "lib/film.h"
#include "test.h"
#include <boost/test/unit_test.hpp>
using std::make_shared;
using std::shared_ptr;
using namespace dcpomatic;
BOOST_AUTO_TEST_CASE (ffmpeg_pts_offset_test)
{
auto content = make_shared<FFmpegContent>("test/data/test.mp4");
auto film = new_test_film("ffmpeg_pts_offset_test", { content });
content->audio = make_shared<AudioContent>(content.get());
content->audio->add_stream (shared_ptr<FFmpegAudioStream> (new FFmpegAudioStream));
content->_video_frame_rate = 24;
{
/* Sound == video so no offset required */
content->_first_video = ContentTime ();
content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
FFmpegDecoder decoder (film, content, false);
BOOST_CHECK_EQUAL (decoder._pts_offset.get(), 0);
}
{
/* Common offset should be removed */
content->_first_video = ContentTime::from_seconds (600);
content->ffmpeg_audio_streams().front()->first_audio = ContentTime::from_seconds (600);
FFmpegDecoder decoder (film, content, false);
BOOST_CHECK_EQUAL (decoder._pts_offset.get(), ContentTime::from_seconds(-600).get());
}
{
/* Video is on a frame boundary */
content->_first_video = ContentTime::from_frames (1, 24);
content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
FFmpegDecoder decoder (film, content, false);
BOOST_CHECK_EQUAL (decoder._pts_offset.get(), 0);
}
{
/* Video is off a frame boundary */
double const frame = 1.0 / 24.0;
content->_first_video = ContentTime::from_seconds (frame + 0.0215);
content->ffmpeg_audio_streams().front()->first_audio = ContentTime ();
FFmpegDecoder decoder (film, content, false);
BOOST_CHECK_CLOSE (decoder._pts_offset.seconds(), (frame - 0.0215), 0.00001);
}
{
/* Video is off a frame boundary and both have a common offset */
double const frame = 1.0 / 24.0;
content->_first_video = ContentTime::from_seconds (frame + 0.0215 + 4.1);
content->ffmpeg_audio_streams().front()->first_audio = ContentTime::from_seconds (4.1);
FFmpegDecoder decoder (film, content, false);
BOOST_CHECK_CLOSE (decoder._pts_offset.seconds(), (frame - 0.0215) - 4.1, 0.1);
}
}
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