www.pudn.com > bladeenc-0.90.0-src.zip > loop.h

/* 
			(c) Copyright 1998, 1999 - Tord Jansson 
			======================================= 
 
		This file is part of the BladeEnc MP3 Encoder, based on 
		ISO's reference code for MPEG Layer 3 compression, and might 
		contain smaller or larger sections that are directly taken 
		from ISO's reference code. 
 
		All changes to the ISO reference code herein are either 
		copyrighted by Tord Jansson (tord.jansson@swipnet.se) 
		or sublicensed to Tord Jansson by a third party. 
 
	BladeEnc is free software; you can redistribute this file 
	and/or modify it under the terms of the GNU Lesser General Public 
	License as published by the Free Software Foundation; either 
	version 2.1 of the License, or (at your option) any later version. 
 
*/ 
 
/********************************************************************** 
 * ISO MPEG Audio Subgroup Software Simulation Group (1996) 
 * ISO 13818-3 MPEG-2 Audio Encoder - Lower Sampling Frequency Extension 
 * 
 * $Id: loop.h,v 1.1 1996/02/14 04:04:23 rowlands Exp $ 
 * 
 * $Log: loop.h,v $ 
 * Revision 1.1  1996/02/14 04:04:23  rowlands 
 * Initial revision 
 * 
 * Received from Mike Coleman 
 **********************************************************************/ 
 
#ifndef LOOP_DOT_H 
#define LOOP_DOT_H 
#include "common.h" 
#include "l3side.h" 
 
/********************************************************************** 
 *   date   programmers                comment                        * 
 * 25. 6.92  Toshiyuki Ishino          Ver 1.0                        * 
 * 29.10.92  Masahiro Iwadare          Ver 2.0                        * 
 * 17. 4.93  Masahiro Iwadare          Updated for IS Modification    * 
 *                                                                    * 
 *********************************************************************/ 
 
extern int cont_flag; 
 
#define e              2.71828182845 
 
/*#define SBLIMIT       32*/ 
#define CBLIMIT       21 
 
#define SFB_LMAX 22 
#define SFB_SMAX 13 
 
extern int pretab[]; 
 
struct scalefac_struct 
{ 
   int l[23]; 
   int s[14]; 
}; 
 
extern struct scalefac_struct sfBandIndex[];  /* Table B.8 -- in loop.c */ 
 
 
void iteration_loop( double pe[][2], double xr_org[2][2][576], III_psy_ratio *ratio, 
		     III_side_info_t *l3_side, int l3_enc[2][2][576], int mean_bits, 
		     int stereo, double xr_dec[2][2][576], 
		     III_scalefac_t *scalefac, frame_params *fr_ps, 
		     int ancillary_pad, int bitsPerFrame ); 
 
 
int nint( double in ); 
 
/* #define PI 3.1415926535 */ 
#define maximum(A,B) ( (A) > (B) ? (A) : (B) ) 
#define minimum(A,B) ( (A) < (B) ? (A) : (B) ) 
#define signum( A ) ( (A) > 0 ? 1 : -1 ) 
 
/* GLOBALE VARIABLE */ 
 
/*extern FILE     *debp; 
extern FILE     *huffcp,*huffdp; 
extern FILE     *musicin,*cod_music;*/ 
 
/* Beachte:Partitonen nur fuer 48 kHz */ 
/* andere ev. fehlerhaft  */ 
 
/* static int     scalefac_band_long[22]; 
  static int     scalefac_band_short[13]; 
*/ 
/*static int     huffman_tab_quad[2][16][2]; 
extern int     bigv_cod_tab[17][2][16][16]; 
extern int     bigv_dec_tab[17][512][5]; 
extern int     bigv_root_node[17]; 
extern int     count1_root_node[2];*/ 
/* extern int     cod_tab_info[2][31]; */ 
 
 
 
 
/* in max spalte war um 1 zuviel */ 
/* [0][i] : maximalwert der Tabelle mit index i 
   [1][i] : anzahl der linbits der TAb. i        */ 
 
extern int bit_buffer[50000]; 
 
void fixStatic_loop( void ); 
 
 
void	genNoisePowTab( void ); 
 
#endif