mdct.h
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- /*
- (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: mdct.h,v 1.1 1996/02/14 04:04:23 rowlands Exp $
- *
- * $Log: mdct.h,v $
- * Revision 1.1 1996/02/14 04:04:23 rowlands
- * Initial revision
- *
- * Received from Mike Coleman
- **********************************************************************/
- #ifndef MDCT_DOT_H
- #define MDCT_DOT_H
- void mdct(double *in, double *out, int block_type);
- void inv_mdct(double *in, double *out, int block_type);
- typedef double D32_18[SBLIMIT][18];
- typedef double L3SBS[2][3][18][SBLIMIT]; /* [gr][ch] */
- void mdct_sub(L3SBS (*sb_sample), double (*mdct_freq)[2][576], int stereo, III_side_info_t *l3_side, int mode_gr );
- void mdct_sub_dec(double (*mdct_freq)[2][576], double inv_mdct_dec[3][2][18][32], int stereo, III_side_info_t *l3_side);
- void delay(double (*xr)[2][576], int stereo);
- #endif