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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/***************************************************************************
* lookup.c:
*
* Generic lookup routines for Mini-SEED information.
*
* Written by Chad Trabant, ORFEUS/EC-Project MEREDIAN
*
* modified: 2006.346
***************************************************************************/
#include <string.h>
#include "libmseed.h"
/***************************************************************************
* ms_samplesize():
*
* Returns the sample size based on type code or 0 for unknown.
***************************************************************************/
uint8_t
ms_samplesize (const char sampletype)
{
switch (sampletype)
{
case 'a':
return 1;
case 'i':
case 'f':
return 4;
case 'd':
return 8;
default:
return 0;
} /* end switch */
} /* End of ms_samplesize() */
/***************************************************************************
* ms_encodingstr():
*
* Returns a string describing a data encoding format.
***************************************************************************/
char *
ms_encodingstr (const char encoding)
{
switch (encoding)
{
case 0:
return "ASCII text";
case 1:
return "16 bit integers";
case 2:
return "24 bit integers";
case 3:
return "32 bit integers";
case 4:
return "IEEE floating point";
case 5:
return "IEEE double precision float";
case 10:
return "STEIM 1 Compression";
case 11:
return "STEIM 2 Compression";
case 12:
return "GEOSCOPE Muxed 24 bit int";
case 13:
return "GEOSCOPE Muxed 16/3 bit gain/exp";
case 14:
return "GEOSCOPE Muxed 16/4 bit gain/exp";
case 15:
return "US National Network compression";
case 16:
return "CDSN 16 bit gain ranged";
case 17:
return "Graefenberg 16 bit gain ranged";
case 18:
return "IPG - Strasbourg 16 bit gain";
case 19:
return "STEIM 3 Compression";
case 30:
return "SRO Gain Ranged Format";
case 31:
return "HGLP Format";
case 32:
return "DWWSSN Format";
case 33:
return "RSTN 16 bit gain ranged";
default:
return "Unknown format code";
} /* end switch */
} /* End of ms_encodingstr() */
/***************************************************************************
* ms_blktdesc():
*
* Return a string describing a given blockette type or NULL if the
* type is unknown.
***************************************************************************/
char *
ms_blktdesc (uint16_t blkttype)
{
switch (blkttype)
{
case 100:
return "Sample Rate";
case 200:
return "Generic Event Detection";
case 201:
return "Murdock Event Detection";
case 300:
return "Step Calibration";
case 310:
return "Sine Calibration";
case 320:
return "Pseudo-random Calibration";
case 390:
return "Generic Calibration";
case 395:
return "Calibration Abort";
case 400:
return "Beam";
case 500:
return "Timing";
case 1000:
return "Data Only SEED";
case 1001:
return "Data Extension";
case 2000:
return "Opaque Data";
} /* end switch */
return NULL;
} /* End of ms_blktdesc() */
/***************************************************************************
* ms_blktlen():
*
* Returns the total length of a given blockette type in bytes or 0 if
* type unknown.
***************************************************************************/
uint16_t
ms_blktlen (uint16_t blkttype, const char *blkt, flag swapflag)
{
uint16_t blktlen = 0;
switch (blkttype)
{
case 100: /* Sample Rate */
blktlen = 12;
break;
case 200: /* Generic Event Detection */
blktlen = 28;
break;
case 201: /* Murdock Event Detection */
blktlen = 36;
break;
case 300: /* Step Calibration */
blktlen = 32;
break;
case 310: /* Sine Calibration */
blktlen = 32;
break;
case 320: /* Pseudo-random Calibration */
blktlen = 28;
break;
case 390: /* Generic Calibration */
blktlen = 28;
break;
case 395: /* Calibration Abort */
blktlen = 16;
break;
case 400: /* Beam */
blktlen = 16;
break;
case 500: /* Timing */
blktlen = 8;
break;
case 1000: /* Data Only SEED */
blktlen = 8;
break;
case 1001: /* Data Extension */
blktlen = 8;
break;
case 2000: /* Opaque Data */
/* First 2-byte field after the blockette header is the length */
if (blkt)
{
memcpy ((void *)&blktlen, blkt + 4, sizeof (int16_t));
if (swapflag)
ms_gswap2 (&blktlen);
}
break;
} /* end switch */
return blktlen;
} /* End of ms_blktlen() */
/***************************************************************************
* ms_errorstr():
*
* Return a string describing a given libmseed error code or NULL if the
* code is unknown.
***************************************************************************/
char *
ms_errorstr (int errorcode)
{
switch (errorcode)
{
case MS_ENDOFFILE:
return "End of file reached";
case MS_NOERROR:
return "No error";
case MS_GENERROR:
return "Generic error";
case MS_NOTSEED:
return "No SEED data detected";
case MS_WRONGLENGTH:
return "Length of data read does not match record length";
case MS_OUTOFRANGE:
return "SEED record length out of range";
case MS_UNKNOWNFORMAT:
return "Unknown data encoding format";
case MS_STBADCOMPFLAG:
return "Bad Steim compression flag(s) detected";
} /* end switch */
return NULL;
} /* End of ms_blktdesc() */
|
