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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
** 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
** 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.
** Any non-GPL usage of this software or parts of this software is strictly
** forbidden.
** The "appropriate copyright message" mentioned in section 2c of the GPLv2
** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
** Commercial non-GPL licensing of this software is possible.
** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
** $Id: lt_predict.h,v 1.20 2007/11/01 12:33:31 menno Exp $

#ifdef LTP_DEC

#ifndef __LT_PREDICT_H__
#define __LT_PREDICT_H__

#ifdef __cplusplus
extern "C" {

#include "filtbank.h"

uint8_t is_ltp_ot(uint8_t object_type);

void lt_prediction(ic_stream *ics,
                   ltp_info *ltp,
                   real_t *spec,
                   int16_t *lt_pred_stat,
                   fb_info *fb,
                   uint8_t win_shape,
                   uint8_t win_shape_prev,
                   uint8_t sr_index,
                   uint8_t object_type,
                   uint16_t frame_len);

void lt_update_state(int16_t *lt_pred_stat,
                     real_t *time,
                     real_t *overlap,
                     uint16_t frame_len,
                     uint8_t object_type);

#ifdef __cplusplus


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