Herwig Birke
147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
/*
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* mpg123 defines
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* used source: musicout.h from mpegaudio package
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*/
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#ifndef __MPG123_H__
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#define __MPG123_H__
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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//#include <gtk/gtk.h>
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#include "dxhead.h"
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#define real float
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/* #define MAX_NAME_SIZE 81 */
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#define SBLIMIT 32
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#define SCALE_BLOCK 12
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#define SSLIMIT 18
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#define MPG_MD_STEREO 0
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#define MPG_MD_JOINT_STEREO 1
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#define MPG_MD_DUAL_CHANNEL 2
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#define MPG_MD_MONO 3
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struct al_table
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{
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short bits;
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short d;
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};
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struct frame
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{
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struct al_table *alloc;
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int (*synth) (real *, int, unsigned char *, int *);
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int (*synth_mono) (real *, unsigned char *, int *);
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int stereo;
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int jsbound;
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int single;
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int II_sblimit;
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int down_sample_sblimit;
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int lsf;
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int mpeg25;
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int down_sample;
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int header_change;
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int lay;
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int (*do_layer) (struct frame * fr);
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int error_protection;
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int bitrate_index;
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int sampling_frequency;
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int padding;
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int extension;
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int mode;
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int mode_ext;
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int copyright;
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int original;
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int emphasis;
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int framesize; /* computed framesize */
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};
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struct bitstream_info
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{
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int bitindex;
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unsigned char *wordpointer;
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};
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extern struct bitstream_info bsi;
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/* ------ Declarations from "common.c" ------ */
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extern unsigned int mpg123_get1bit(void);
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extern unsigned int mpg123_getbits(int);
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extern unsigned int mpg123_getbits_fast(int);
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extern int mpg123_head_check(unsigned long);
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extern void mpg123_set_pointer(long);
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extern unsigned char *mpg123_pcm_sample;
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extern int mpg123_pcm_point;
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struct gr_info_s
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{
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int scfsi;
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unsigned part2_3_length;
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unsigned big_values;
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unsigned scalefac_compress;
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unsigned block_type;
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unsigned mixed_block_flag;
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unsigned table_select[3];
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unsigned subblock_gain[3];
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unsigned maxband[3];
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unsigned maxbandl;
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unsigned maxb;
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unsigned region1start;
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unsigned region2start;
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unsigned preflag;
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unsigned scalefac_scale;
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unsigned count1table_select;
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real *full_gain[3];
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real *pow2gain;
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};
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struct III_sideinfo
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{
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unsigned main_data_begin;
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unsigned private_bits;
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struct
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{
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struct gr_info_s gr[2];
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}
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ch[2];
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};
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int mpg123_stream_check_for_xing_header(struct frame *fr, XHEADDATA * xhead);
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extern int mpg123_do_layer3(struct frame *fr);
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extern int mpg123_do_layer2(struct frame *fr);
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extern int mpg123_do_layer1(struct frame *fr);
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extern void mpg123_init_layer3(int);
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extern void mpg123_init_layer2(void);
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int mpg123_decode_header(struct frame *fr, unsigned long newhead);
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double mpg123_compute_bpf(struct frame *fr);
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double mpg123_compute_tpf(struct frame *fr);
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extern unsigned char *mpg123_conv16to8;
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extern long mpg123_freqs[9];
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extern real mpg123_muls[27][64];
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extern real mpg123_decwin[512 + 32];
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extern real *mpg123_pnts[5];
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extern int tabsel_123[2][3][16];
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unsigned int mpg123_get_song_time(FILE * file);
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#endif
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