blob: 85514830d3747214cb69904f802eb2e8ebf4e8ca (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
#ifndef COMMON_DOT_H
#define COMMON_DOT_H
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
#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 PI2 PI/2
#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 */
#define MAC_WINDOW_SIZE 24
#define MONO 1
#define STEREO 2
#define BITS_IN_A_BYTE 8
#define WORD 16
#define MAX_NAME_SIZE 255
#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
#define CRC8_POLYNOMIAL 0x1D
/* MPEG Header Definitions - Mode Values */
#define MPG_MD_STEREO 0
#define MPG_MD_JOINT_STEREO 1
#define MPG_MD_DUAL_CHANNEL 2
#define MPG_MD_MONO 3
/* Mode Extension */
#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 BINARY 0
#define ASCII 1
#define BUFFER_SIZE 4096
#define FLOAT8 float
/***********************************************************************
*
* Global Type Definitions
*
***********************************************************************/
#include "utils.h"
#include <stdio.h>
#include <stdlib.h>
#if defined(JACK_INPUT)
# include <jack/jack.h>
#endif
/* 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 lay;
int error_protection;
int dab_extension;
int dab_length;
int bitrate_index;
int sampling_frequency;
int padding;
int extension;
int mode;
int mode_ext;
int copyright;
int original;
int emphasis;
}
frame_header;
/* Parent Structure Interpreting some Frame Parameters in Header */
typedef struct
{
frame_header *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 nch; /* num channels: 1 for mono, 2 for stereo */
int jsbound; /* first band of joint stereo coding */
int sblimit; /* total number of sub bands */
}
frame_info;
typedef struct bit_stream_struc
{
FILE *pt; /* pointer to bit stream device */
void *zmq_sock; /* zmq socket */
int zmq_framesize; /* zmq frame size */
unsigned char *buf; /* bit stream buffer */
int buf_size; /* size of buffer (in number of bytes) */
long 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;
enum byte_order
{ order_unknown, order_bigEndian, order_littleEndian };
extern enum byte_order NativeByteOrder;
typedef struct music_in_s
{
/* Data for the wav input */
FILE* wav_input;
#if defined(JACK_INPUT)
/* Data for the jack input */
jack_client_t* jack_client;
#endif
const char* jack_name;
} music_in_t;
/* "bit_stream.h" Type Definitions */
/***********************************************************************
*
* Global Variable External Declarations
*
***********************************************************************/
extern char *mode_names[4];
extern char *version_names[2];
extern double s_freq[2][4];
extern int bitrate[2][15];
extern double multiple[64];
int js_bound (int);
void hdr_to_frps (frame_info *);
int BitrateIndex (int, int);
int SmpFrqIndex (long, int *);
void new_ext (char *filename, char *extname, char *newname);
#endif
|
