/*
 *	subtitleeditor -- a tool to create or edit subtitle
 *
 *	http://home.gna.org/subtitleeditor/
 *	https://gna.org/projects/subtitleeditor/
 *
 *	Copyright @ 2005-2009, kitone
 *
 *	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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#include "timeutility.h"
#include "i18n.h"

/*
 * Return the label of the framerate.
 */
Glib::ustring get_framerate_label(FRAMERATE framerate)
{
	Glib::ustring ret;

	switch(framerate)
	{
	case FRAMERATE_23_976:	
		ret = _("23.976 fps");
		break;
	case FRAMERATE_24:	
		ret = _("24 fps");
		break;
	case FRAMERATE_25:	
		ret = _("25 fps");
		break;
	case FRAMERATE_29_97:	
		ret = _("29.97 fps");
		break;
	case FRAMERATE_30:	
		ret = _("30 fps");
		break;
	default:
		ret = _("Invalid fps");
		break;
	}

	return ret;
}

/*
 * Return the real value of the framerate.
 */
float get_framerate_value(FRAMERATE framerate)
{
	float ret = 0;

	switch(framerate)
	{
	case FRAMERATE_23_976:	
		ret = 23.976; // 24 / 1.001
		break;
	case FRAMERATE_24:	
		ret = 24;
		break;
	case FRAMERATE_25:	
		ret = 25;
		break;
	case FRAMERATE_29_97:	
		ret = 29.97; // 30 / 1.001
		break;
	case FRAMERATE_30:	
		ret = 30;
		break;
	default:
		ret = 0;
		break;
	}

	return ret;
}

/*
 * Return the framerate from the value.
 */
FRAMERATE get_framerate_from_value(float fps)
{
	FRAMERATE framerate;

	int value = (int)((fps * 1000) + 0.5);

	if(value == 23976)
		framerate = FRAMERATE_23_976;
	else if(value == 24000)
		framerate = FRAMERATE_24;
	else if(value == 25000)
		framerate = FRAMERATE_25;
	else if(value == 29970)
		framerate = FRAMERATE_29_97;
	else if(value == 30000)
		framerate = FRAMERATE_30;

	return framerate;
}
