l3psy.h

MPEG 2的音频编码软件。喜欢多媒体的开发人员可以看看。

/**********************************************************************
 * ISO MPEG Audio Subgroup Software Simulation Group (1996)
 * ISO 13818-3 MPEG-2 Audio Encoder - Lower Sampling Frequency Extension
 *
 * $Id: l3psy.h,v 1.1 1996/02/14 04:04:23 rowlands Exp $
 *
 * $Log: l3psy.h,v $
 * Revision 1.1  1996/02/14 04:04:23  rowlands
 * Initial revision
 *
 * Received from Mike Coleman
 **********************************************************************/

#ifndef L3PSY_DOT_H_
#define L3PSY_DOT_H_
/* #define CBANDS 63 */
#define CBANDS_s 42
#define BLKSIZE_s 256
#define HBLKSIZE_s 129
#define TCBMAX_l 63
#define TCBMAX_s 42
#define SBMAX_l 21
#define SBMAX_s 12

/* #define switch_pe        1800 */
#define NORM_TYPE       0
#define START_TYPE      1
#define SHORT_TYPE      2
#define STOP_TYPE       3

/* l3psy.c */
#include "l3side.h"
void L3psycho_anal( short int *buffer, short int savebuf[1344], int chn, int lay, FLOAT snr32[32],
					double sfreq, double ratio_d[21], double ratio_ds[12][3],
					double *pe, gr_info *cod_info );
/* void read_absthr(float *absthr, int table); */
#endif