221 lines
5.7 KiB
C
221 lines
5.7 KiB
C
/******************************************************************************
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* *
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* Copyright (C) 1992-1995 Tony Robinson *
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* *
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* See the file doc/LICENSE.shorten for conditions on distribution and usage *
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* *
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******************************************************************************/
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/*
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* $Id$
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*/
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#ifndef _SHORTEN_H
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#define _SHORTEN_H
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <pthread.h>
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#else
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# if SIZEOF_UNSIGNED_LONG == 4
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# define uint32_t unsigned long
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# define int32_t long
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# else
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# define uint32_t unsigned int
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# define int32_t int
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# endif
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# define uint16_t unsigned short
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# define uint8_t unsigned char
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# define int16_t short
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# define int8_t char
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#endif
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#undef ulong
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#undef ushort
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#undef uchar
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#undef slong
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#undef sshort
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#undef schar
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#define ulong uint32_t
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#define ushort uint16_t
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#define uchar uint8_t
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#define slong int32_t
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#define sshort int16_t
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#define schar int8_t
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#include "shn.h"
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#define MAGIC "ajkg"
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#define FORMAT_VERSION 2
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#define MIN_SUPPORTED_VERSION 1
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#define MAX_SUPPORTED_VERSION 3
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#define MAX_VERSION 7
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#define UNDEFINED_UINT -1
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#define DEFAULT_BLOCK_SIZE 256
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#define DEFAULT_V0NMEAN 0
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#define DEFAULT_V2NMEAN 4
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#define DEFAULT_MAXNLPC 0
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#define DEFAULT_NCHAN 1
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#define DEFAULT_NSKIP 0
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#define DEFAULT_NDISCARD 0
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#define NBITPERLONG 32
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#define DEFAULT_MINSNR 256
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#define DEFAULT_MAXRESNSTR "32.0"
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#define DEFAULT_QUANTERROR 0
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#define MINBITRATE 2.5
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#define MAX_LPC_ORDER 64
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#define CHANSIZE 0
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#define ENERGYSIZE 3
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#define BITSHIFTSIZE 2
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#define NWRAP 3
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#define FNSIZE 2
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#define FN_DIFF0 0
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#define FN_DIFF1 1
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#define FN_DIFF2 2
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#define FN_DIFF3 3
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#define FN_QUIT 4
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#define FN_BLOCKSIZE 5
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#define FN_BITSHIFT 6
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#define FN_QLPC 7
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#define FN_ZERO 8
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#define FN_VERBATIM 9
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#define VERBATIM_CKSIZE_SIZE 5 /* a var_put code size */
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#define VERBATIM_BYTE_SIZE 8 /* code size 8 on single bytes means
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* no compression at all */
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#define VERBATIM_CHUNK_MAX 256 /* max. size of a FN_VERBATIM chunk */
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#define ULONGSIZE 2
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#define NSKIPSIZE 1
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#define LPCQSIZE 2
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#define LPCQUANT 5
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#define XBYTESIZE 7
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#define TYPESIZE 4
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#define TYPE_AU1 0 /* original lossless ulaw */
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#define TYPE_S8 1 /* signed 8 bit characters */
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#define TYPE_U8 2 /* unsigned 8 bit characters */
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#define TYPE_S16HL 3 /* signed 16 bit shorts: high-low */
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#define TYPE_U16HL 4 /* unsigned 16 bit shorts: high-low */
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#define TYPE_S16LH 5 /* signed 16 bit shorts: low-high */
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#define TYPE_U16LH 6 /* unsigned 16 bit shorts: low-high */
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#define TYPE_ULAW 7 /* lossy ulaw: internal conversion to linear */
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#define TYPE_AU2 8 /* new ulaw with zero mapping */
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#define TYPE_AU3 9 /* lossless alaw */
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#define TYPE_ALAW 10 /* lossy alaw: internal conversion to linear */
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#define TYPE_RIFF_WAVE 11 /* Microsoft .WAV files */
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#define TYPE_EOF 12
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#define TYPE_GENERIC_ULAW 128
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#define TYPE_GENERIC_ALAW 129
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#define POSITIVE_ULAW_ZERO 0xff
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#define NEGATIVE_ULAW_ZERO 0x7f
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#ifndef MAX_PATH
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#define MAX_PATH 2048
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#endif
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#ifndef MIN
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#define MIN(a,b) (((a)<(b))?(a):(b))
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#endif
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#ifndef MAX
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#endif
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#if defined(unix) && !defined(linux)
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#define labs abs
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#endif
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#define ROUNDEDSHIFTDOWN(x, n) (((n) == 0) ? (x) : ((x) >> ((n) - 1)) >> 1)
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#ifndef M_LN2
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#define M_LN2 0.69314718055994530942
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#endif
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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/* BUFSIZ must be a multiple of four to contain a whole number of words */
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#ifdef BUFSIZ
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#undef BUFSIZ
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#endif
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#define BUFSIZ 512
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#define V2LPCQOFFSET (1 << LPCQUANT);
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#define UINT_GET(nbit, file) \
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((version == 0) ? uvar_get(nbit, file) : ulong_get(file))
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#define putc_exit(val, stream)\
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{ char rval;\
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if((rval = putc((val), (stream))) != (char) (val))\
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complain("FATALERROR: write failed: putc returns EOF");\
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}
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extern int getc_exit_val;
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#define getc_exit(stream)\
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(((getc_exit_val = getc(stream)) == EOF) ? \
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complain("FATALERROR: read failed: getc returns EOF"), 0: getc_exit_val)
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/************************/
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/* defined in shorten.c */
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extern void init_offset(slong**, int, int, int);
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extern int shorten(FILE*, FILE*, int, char**);
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/**************************/
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/* defined in Sulawalaw.c */
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extern int Sulaw2lineartab[];
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#define Sulaw2linear(i) (Sulaw2lineartab[i])
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#ifndef Sulaw2linear
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extern int Sulaw2linear(uchar);
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#endif
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extern uchar Slinear2ulaw(int);
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extern int Salaw2lineartab[];
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#define Salaw2linear(i) (Salaw2lineartab[i])
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#ifndef Salaw2linear
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extern int Salaw2linear(uchar);
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#endif
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extern uchar Slinear2alaw(int);
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/**********************/
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/* defined in fixio.c */
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extern void init_sizeof_sample(void);
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extern void fwrite_type_init(shn_file*);
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extern void fwrite_type(slong**,int,int,int,shn_file*);
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extern void fwrite_type_quit(shn_file*);
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extern void fix_bitshift(slong*, int, int, int);
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/**********************/
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/* defined in vario.c */
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extern void var_get_init(shn_file*);
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extern slong uvar_get(int, shn_file*);
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extern slong var_get(int, shn_file*);
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extern ulong ulong_get(shn_file*);
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extern void var_get_quit(shn_file*);
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extern int sizeof_uvar(ulong, int);
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extern int sizeof_var(slong, int);
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extern void mkmasktab(void);
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extern ulong word_get(shn_file*);
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/**********************/
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/* defined in array.c */
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extern void* pmalloc(ulong, shn_file*);
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extern slong** long2d(ulong, ulong, shn_file*);
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#endif
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