/*****************************************************************************
 *
 *  XVID MPEG-4 VIDEO CODEC
 *  - 1 Pass rate controler header file -
 *
 *  Copyright(C) 2002 Michael Militzer
 *
 *  This program is an implementation of a part of one or more MPEG-4
 *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
 *  to use this software module in hardware or software products are
 *  advised that its use may infringe existing patents or copyrights, and
 *  any such use would be at such party's own risk.  The original
 *  developer of this software module and his/her company, and subsequent
 *  editors and their companies, will have no liability for use of this
 *  software or modifications or derivatives thereof.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 * $Id: ratecontrol.h,v 1.6 2002/09/05 20:37:40 edgomez Exp $
 *
 ****************************************************************************/

#ifndef _RATECONTROL_H_
#define _RATECONTROL_H_

#include "../portab.h"

typedef struct
{
	int64_t size;
	int32_t count;
}
QuantInfo;

typedef struct
{
	int32_t rtn_quant;
	int64_t frames;
	int64_t total_size;
	double framerate;
	int32_t target_rate;
	int16_t max_quant;
	int16_t min_quant;
	int64_t last_change;
	int64_t quant_sum;
	double quant_error[32];
	double avg_framesize;
	double target_framesize;
	double sequence_quality;
	int32_t averaging_period;
	int32_t reaction_delay_factor;
	int32_t buffer;
}
RateControl;

void RateControlInit(RateControl * rate_control,
					 uint32_t target_rate,
					 uint32_t reaction_delay_factor,
					 uint32_t averaging_period,
					 uint32_t buffer,
					 int framerate,
					 int max_quant,
					 int min_quant);

int RateControlGetQ(RateControl * rate_control,
					int keyframe);

void RateControlUpdate(RateControl * rate_control,
					   int16_t quant,
					   int frame_size,
					   int keyframe);

#endif /* _RATECONTROL_H_ */