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
|
/* This is a test for the NCEPLIBS-g2c project. This test is for
* the AEC compression functions.
*
* Eric Engle 10/18/23
*/
#include "grib2_int.h"
#include <stdio.h>
#include <stdlib.h>
#define DATA_LEN 4
#define PACKED_LEN 80
#define EPSILON .0001
/* The following is determined from summing the libaec constants
* AEC_DATA_SIGNED | AEC_DATA_PREPROCESS | AEC_DATA_MSB
* Here we use the value so we don't have to include libaec.h. */
#define CCSDS_FLAGS 13
int
main()
{
printf("Testing AEC Compression functions...\n");
printf("Testing enc_aec() and dec_aec() calls...");
{
unsigned char data[4] = {1, 2, 3, 4};
unsigned char cout[200];
g2int nbits = 32;
g2int datalen;
g2int *aeclen;
g2int ccsds_flags;
g2int ccsds_block_size;
g2int ccsds_rsi;
unsigned char *databuf;
unsigned char *aecbuf;
int i, ret;
databuf = data;
aecbuf = cout;
datalen = sizeof(data) / sizeof(data[0]);
aeclen = (g2int *)(sizeof(cout) / sizeof(cout[0]));
/* Set AEC parameters. */
ccsds_flags = CCSDS_FLAGS;
ccsds_block_size = 16;
ccsds_rsi = 128;
/* Encode some data. */
ret = enc_aec(databuf, datalen, nbits, ccsds_flags, ccsds_block_size,
ccsds_rsi, aecbuf, aeclen);
if (ret < 0)
return G2C_ERROR;
/* Now decode it. */
ret = dec_aec(aecbuf, (g2int)aeclen, nbits, ccsds_flags, ccsds_block_size,
ccsds_rsi, cout, datalen);
if (ret < 0)
{
return G2C_ERROR;
}
for (i = 0; i < datalen; i++)
//printf("%g %g\n",cout[i], data[i]);
if (cout[i] != data[i])
return G2C_ERROR;
}
printf("ok!\n");
printf("Testing aecpack()/aecunpack() calls...");
{
g2int width = 2, height = 2;
g2int ndpts = DATA_LEN, len = PACKED_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 4.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack;
g2int idrstmpl[8] = {0, 1, 1, 0, 0, 0, 16, 128};
int i, ret;
idrstmpl[5] = CCSDS_FLAGS;
/* Pack the data. */
aecpack(fld, width, height, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
ret = aecunpack(cpack, len, idrstmpl, ndpts, fld_in);
if (ret < 0)
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
//printf("%g %g\n",fld[i], fld_in[i]);
if (abs(fld[i] - fld_in[i]) >= EPSILON)
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing g2c_aecpackd()/g2c_aecunpackd() calls with constant data...");
{
size_t height = 2, width = 2;
size_t ndpts = DATA_LEN, len = PACKED_LEN;
double fld[DATA_LEN] = {1.0, 1.0, 1.0, 1.0};
double fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
size_t lcpack;
g2int idrstmpl[8] = {0, 1, 1, 0, 0, 0, 16, 128};
int i, ret;
idrstmpl[5] = CCSDS_FLAGS;
/* Pack the data. */
g2c_aecpackd(fld, width, height, (int *)idrstmpl, cpack, &lcpack);
/* Unpack the data. */
ret = g2c_aecunpackd(cpack, len, (int *)idrstmpl, ndpts, fld_in);
if (ret < 0)
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (abs(fld[i] - fld_in[i]) >= EPSILON)
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing g2c_aecpackd()/g2c_aecunpackd() calls with data...");
{
size_t height = 2, width = 2;
size_t ndpts = DATA_LEN, len = PACKED_LEN;
double fld[DATA_LEN] = {1.0, 2.0, 3.0, 4.0};
double fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
size_t lcpack;
g2int idrstmpl[8] = {0, 1, 1, 0, 0, 0, 16, 128};
int i, ret;
idrstmpl[5] = CCSDS_FLAGS;
/* Pack the data. */
g2c_aecpackd(fld, width, height, (int *)idrstmpl, cpack, &lcpack);
/* Unpack the data. */
ret = g2c_aecunpackd(cpack, len, (int *)idrstmpl, ndpts, fld_in);
if (ret < 0)
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (abs(fld[i] - fld_in[i]) >= EPSILON)
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing g2c_enc_aec()/g2c_dec_aec() call...");
{
unsigned char data[4] = {1, 2, 3, 4};
unsigned char cout[200];
int nbits = 32;
int datalen = 4;
int aeclen = 200;
int ccsds_flags;
int ccsds_block_size;
int ccsds_rsi;
unsigned char *databuf;
unsigned char *aecbuf;
int i, ret;
databuf = data;
aecbuf = cout;
ccsds_flags = CCSDS_FLAGS;
ccsds_block_size = 16;
ccsds_rsi = 128;
/* Encode some data. */
ret = g2c_enc_aec(databuf, datalen, nbits, ccsds_flags, ccsds_block_size,
ccsds_rsi, aecbuf, &aeclen);
if (ret < 0)
return G2C_ERROR;
/* Now decode it. */
ret = g2c_dec_aec(aecbuf, aeclen, nbits, ccsds_flags, ccsds_block_size,
ccsds_rsi, cout, datalen);
if (ret < 0)
return G2C_ERROR;
for (i = 0; i < datalen; i++)
if (cout[i] != data[i])
return G2C_ERROR;
}
printf("SUCCESS!\n");
return 0;
}
|
