ref: 066f3cc7bac1d1a85f5274e0ec90165b3cfcbec6
dir: /nok_ltp_common.h/
/*
* Common definitions for LTP
*
* Copyright (c) 1999 M. Bakker
*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/**************************************************************************
Version Control Information Method: CVS
Identifiers:
$Revision: 1.3 $
$Date: 2000/10/05 08:39:02 $ (check in)
$Author: menno $
*************************************************************************/
#ifndef _NOK_LTP_COMMON_H
#define _NOK_LTP_COMMON_H
/*
Macro: MAX_SHORT_WINDOWS
Purpose: Number of short windows in one long window.
Explanation: - */
#ifndef MAX_SHORT_WINDOWS
#define MAX_SHORT_WINDOWS NSHORT
#endif
/*
Macro: MAX_SCFAC_BANDS
Purpose: Maximum number of scalefactor bands in one frame.
Explanation: - */
#ifndef MAX_SCFAC_BANDS
#define MAX_SCFAC_BANDS MAXBANDS
#endif
/*
Macro: NOK_LT_BLEN
Purpose: Length of the history buffer.
Explanation: Has to hold two long windows of time domain data. */
#ifndef NOK_LT_BLEN
#define NOK_LT_BLEN (4 * BLOCK_LEN_LONG)
#endif
/*
Type: NOK_LT_PRED_STATUS
Purpose: Type of the struct holding the LTP encoding parameters.
Explanation: - */
typedef struct
{
short buffer[NOK_LT_BLEN];
double pred_mdct[2 * BLOCK_LEN_LONG];
int weight_idx;
double weight;
int sbk_prediction_used[MAX_SHORT_WINDOWS];
int sfb_prediction_used[MAX_SCFAC_BANDS];
int *delay;
int global_pred_flag;
int side_info;
}
NOK_LT_PRED_STATUS;
#endif /* _NOK_LTP_COMMON_H */