--- /dev/null
+/*
+ (c) Copyright 1998-2000 - 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.
+
+
+
+ ------------ Changes ------------
+
+ 2000-02-07 Andre Piotrowski
+
+ - reformatted
+*/
+
+#ifndef __COMMON__
+#define __COMMON__
+
+
+
+
+
+/***********************************************************************
+*
+* Global Include Files
+*
+***********************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include "tables.h"
+
+
+
+
+
+#define MIN(A, B) ((A) < (B) ? (A) : (B))
+#define MAX(A, B) ((A) > (B) ? (A) : (B))
+
+
+
+
+
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS 0
+#endif
+
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE 1
+#endif
+
+
+
+
+
+/***********************************************************************
+*
+* Global Definitions
+*
+***********************************************************************/
+
+/* General Definitions */
+
+#define FLOAT float
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#define NULL_CHAR '\0'
+
+#define MAX_U_32_NUM 0xFFFFFFFF
+
+#ifndef PI
+#define PI 3.14159265358979
+#endif
+#define PI4 PI/4
+#define PI64 PI/64
+
+#define LN_TO_LOG10 0.2302585093
+
+#define VOL_REF_NUM 0
+#define MPEG_AUDIO_ID 1
+#define MPEG_PHASE2_LSF 0 /* 1995-07-11 SHN */
+
+#if 0
+#define MONO 1
+#define STEREO 2
+#endif
+
+#define BITS_IN_A_BYTE 8
+#define WORD 16
+#define MAX_NAME_SIZE 81
+#define SBLIMIT 32
+#define SSLIMIT 18
+#define FFT_SIZE 1024
+#define HAN_SIZE 512
+#define SCALE_BLOCK 12
+#define SCALE_RANGE 64
+#define SCALE 32768
+#define CRC16_POLYNOMIAL 0x8005
+
+
+/* MPEG Header Definitions - Mode Values */
+
+#define MPG_MD_STEREO 0
+#define MPG_MD_DUAL_CHANNEL 2
+#define MPG_MD_MONO 3
+
+
+/* Mode Extention */
+
+#define MPG_MD_LR_LR 0
+#define MPG_MD_LR_I 1
+#define MPG_MD_MS_LR 2
+#define MPG_MD_MS_I 3
+
+
+/* "bit_stream.h" Definitions */
+
+#define MINIMUM 4 /* Minimum size of the buffer in bytes */
+#define MAX_LENGTH 32 /* Maximum length of word written or
+ read from bit stream */
+
+#define READ_MODE 0
+#define WRITE_MODE 1
+#define ALIGNING 8
+
+
+
+#define BUFFER_SIZE 4096
+
+
+
+
+
+/***********************************************************************
+*
+* Global Type Definitions
+*
+***********************************************************************/
+
+
+/* Structure for Reading Layer II Allocation Tables from File */
+
+typedef struct
+ {
+ unsigned int steps;
+ unsigned int bits;
+ unsigned int group;
+ unsigned int quant;
+ } sb_alloc, *alloc_ptr;
+
+typedef sb_alloc al_table[SBLIMIT][16];
+
+
+/* Header Information Structure */
+
+typedef struct
+ {
+ int version;
+ int error_protection;
+ int bitrate_index;
+ int sampling_frequency;
+ int padding;
+ int extension;
+ int mode;
+ int mode_ext;
+ int copyright;
+ int original;
+ int emphasis;
+/* int freq; */
+ } layer, *the_layer;
+
+
+/* Parent Structure Interpreting some Frame Parameters in Header */
+
+typedef struct
+ {
+ layer *header; /* raw header information */
+ int actual_mode; /* when writing IS, may forget if 0 chs */
+ al_table *alloc; /* bit allocation table read in */
+ int tab_num; /* number of table as loaded */
+ int stereo; /* 1 for mono, 2 for stereo */
+ int jsbound; /* first band of joint stereo coding */
+ int sblimit; /* total number of sub bands */
+ } frame_params;
+
+
+
+enum byte_order { order_unknown, order_bigEndian, order_littleEndian };
+extern enum byte_order NativeByteOrder;
+
+
+/* "bit_stream.h" Type Definitions */
+
+typedef struct bit_stream_struc
+ {
+ FILE *pt; /* pointer to bit stream device */
+ unsigned char *buf; /* bit stream buffer */
+ int buf_size; /* size of buffer (in number of bytes) */
+ int totbit; /* bit counter of bit stream */
+ int buf_byte_idx; /* pointer to top byte in buffer */
+ int buf_bit_idx; /* pointer to top bit of top byte in buffer */
+ int mode; /* bit stream open in read or write mode */
+ int eob; /* end of buffer index */
+ int eobs; /* end of bit stream flag */
+ char format; /* format of file in rd mode (BINARY/ASCII) */
+ } Bit_stream_struc;
+
+
+
+
+
+#include "l3side.h"
+
+/***********************************************************************
+*
+* Global Variable External Declarations
+*
+***********************************************************************/
+
+/*
+extern char *mode_names[4];
+extern char *layer_names[3];
+extern char *version_names[2];
+*/
+extern double s_freq[2][4];
+extern int bitratex[2][15];
+
+
+
+
+
+/***********************************************************************
+*
+* Global Function Prototype Declarations
+*
+***********************************************************************/
+
+/* The following functions are in the file "common.c" */
+
+extern void *mem_alloc (unsigned int block, char *item);
+extern void mem_free (void **ptr_addr);
+
+
+
+
+
+#endif /* __COMMON__ */
git.asbjorn.biz / swftools.git / blobdiff