+/*
+ Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file test/ffmpeg_pts_offset_test.cc
+ * @brief Check the computation of _pts_offset in FFmpegDecoder.
+ */
+
+#include <boost/test/unit_test.hpp>
+#include "lib/film.h"
+#include "lib/ffmpeg_decoder.h"
+#include "lib/ffmpeg_content.h"
+#include "test.h"
+
+using boost::shared_ptr;
+
+BOOST_AUTO_TEST_CASE (ffmpeg_pts_offset_test)
+{
+ shared_ptr<Film> film = new_test_film ("ffmpeg_pts_offset_test");
+ shared_ptr<FFmpegContent> content (new FFmpegContent (film, "test/data/test.mp4"));
+ content->_audio_stream.reset (new FFmpegAudioStream);
+ content->_video_frame_rate = 24;
+
+ {
+ /* Sound == video so no offset required */
+ content->_first_video = ContentTime ();
+ content->_audio_stream->first_audio = ContentTime ();
+ FFmpegDecoder decoder (content, film->log());
+ BOOST_CHECK_EQUAL (decoder._pts_offset, ContentTime ());
+ }
+
+ {
+ /* Common offset should be removed */
+ content->_first_video = ContentTime::from_seconds (600);
+ content->_audio_stream->first_audio = ContentTime::from_seconds (600);
+ FFmpegDecoder decoder (content, film->log());
+ BOOST_CHECK_EQUAL (decoder._pts_offset, ContentTime::from_seconds (-600));
+ }
+
+ {
+ /* Video is on a frame boundary */
+ content->_first_video = ContentTime::from_frames (1, 24);
+ content->_audio_stream->first_audio = ContentTime ();
+ FFmpegDecoder decoder (content, film->log());
+ BOOST_CHECK_EQUAL (decoder._pts_offset, ContentTime ());
+ }
+
+ {
+ /* Video is off a frame boundary */
+ double const frame = 1.0 / 24.0;
+ content->_first_video = ContentTime::from_seconds (frame + 0.0215);
+ content->_audio_stream->first_audio = ContentTime ();
+ FFmpegDecoder decoder (content, film->log());
+ 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->_audio_stream->first_audio = ContentTime::from_seconds (4.1);
+ FFmpegDecoder decoder (content, film->log());
+ BOOST_CHECK_EQUAL (decoder._pts_offset.seconds(), (frame - 0.0215) - 4.1);
+ }
+}