path: root/src/db/LightSong.cxx

/*
 * Copyright (C) 2003-2015 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "LightSong.hxx"
#include "tag/Tag.hxx"

SignedSongTime
LightSong::GetDuration() const
{
	SongTime a = start_time, b = end_time;
	if (!b.IsPositive()) {
		if (tag->duration.IsNegative())
			return tag->duration;

		b = SongTime(tag->duration);
	}

	return SignedSongTime(b - a);
}