ref: 985b2457cda207c2c65edeb647aedbb6e92dac46
dir: /sys/src/cmd/audio/mp3enc/lame-analysis.h/
/*
* GTK plotting routines source file
*
* Copyright (c) 1999 Mark Taylor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef LAME_GTKANAL_H
#define LAME_GTKANAL_H
#include "encoder.h"
#define READ_AHEAD 10 /* number of frames to read ahead */
#define MAXMPGLAG READ_AHEAD /* if the mpg123 lag becomes bigger than this we have to stop */
#define NUMBACK 6 /* number of frames we can back up */
#define NUMPINFO (NUMBACK+READ_AHEAD+1)
typedef struct {
int frameNum; /* current frame number */
int frameNum123;
int num_samples; /* number of pcm samples read for this frame */
double frametime; /* starting time of frame, in seconds */
double pcmdata[2][1600];
double pcmdata2[2][1152+1152-DECDELAY];
double xr[2][2][576];
double mpg123xr[2][2][576];
double ms_ratio[2];
double ms_ener_ratio[2];
/* L,R, M and S values */
double energy[2][4][BLKSIZE];
double pe[2][4];
double thr[2][4][SBMAX_l];
double en[2][4][SBMAX_l];
double thr_s[2][4][3*SBMAX_s];
double en_s[2][4][3*SBMAX_s];
double ers[2][4];
double sfb[2][2][SBMAX_l];
double sfb_s[2][2][3*SBMAX_s];
double LAMEsfb[2][2][SBMAX_l];
double LAMEsfb_s[2][2][3*SBMAX_s];
int LAMEqss[2][2];
int qss[2][2];
int big_values[2][2];
int sub_gain[2][2][3];
double xfsf[2][2][SBMAX_l];
double xfsf_s[2][2][3*SBMAX_s];
int over[2][2];
double tot_noise[2][2];
double max_noise[2][2];
double over_noise[2][2];
int blocktype[2][2];
int scalefac_scale[2][2];
int preflag[2][2];
int mpg123blocktype[2][2];
int mixed[2][2];
int mainbits[2][2];
int sfbits[2][2];
int LAMEmainbits[2][2];
int LAMEsfbits[2][2];
int framesize,stereo,js,ms_stereo,i_stereo,emph,bitrate,sampfreq,maindata;
int crc,padding;
int scfsi[2],mean_bits,resvsize;
int totbits;
} plotting_data;
extern plotting_data *pinfo;
#endif