loop.h
上传用户:bjsgzm
上传日期:2007-01-08
资源大小:256k
文件大小:3k
- /*
- (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