Various comment fixes to tests.

1 files changed, 80 insertions, 0 deletions

diff --git a/test/ffmpeg_pts_offset_test.cc b/test/ffmpeg_pts_offset_test.cc
new file mode 100644
index 000000000..9a9785d28
--- /dev/null
+++ b/test/ffmpeg_pts_offset_test.cc
@@ -0,0 +1,80 @@
+/*
+    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);
+	}
+}