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comparison hrutil/cod-craft.c @ 570:b4c4ed4b1b91

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hrutil: new program gsmhr-cod-craft
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Feb 2025 04:53:08 +0000
parents hrutil/dec-craft.c@0d05892150cf
children 5452d6cd64b1
comparison
equal deleted inserted replaced
569:0d05892150cf 570:b4c4ed4b1b91
1 /*
2 * This program facilitates hand-crafting HRv1 encoder output files (*.cod).
3 * It reads a line-based ASCII source and compiles it into binary *.cod format.
4 */
5
6 #include <sys/types.h>
7 #include <ctype.h>
8 #include <stdio.h>
9 #include <stdint.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <strings.h>
13 #include "../libgsmhr1/tw_gsmhr.h"
14
15 #define MAX_FIELDS 18
16
17 static char *infname, *outfname;
18 static FILE *inf, *outf;
19
20 static int lineno;
21 static char linebuf[256];
22 static char *fields[MAX_FIELDS];
23 static unsigned nfields;
24
25 static int16_t enc_frame[GSMHR_NUM_PARAMS_ENC];
26
27 static void
28 set_all_0()
29 {
30 bzero(enc_frame, sizeof(int16_t) * GSMHR_NUM_PARAMS);
31 }
32
33 static void
34 set_dhf()
35 {
36 bcopy(gsmhr_dhf_params, enc_frame, sizeof(int16_t) * GSMHR_NUM_PARAMS);
37 }
38
39 static void
40 set_sid_cw()
41 {
42 /* Int_LPC and Mode */
43 enc_frame[4] = 1;
44 enc_frame[5] = 3;
45 /* subframe 1 */
46 enc_frame[6] = 0xFF;
47 enc_frame[7] = 0x1FF;
48 enc_frame[8] = 0x1F;
49 /* subframe 2 */
50 enc_frame[9] = 0xF;
51 enc_frame[10] = 0x1FF;
52 enc_frame[11] = 0x1F;
53 /* subframe 3 */
54 enc_frame[12] = 0xF;
55 enc_frame[13] = 0x1FF;
56 enc_frame[14] = 0x1F;
57 /* subframe 4 */
58 enc_frame[15] = 0xF;
59 enc_frame[16] = 0x1FF;
60 enc_frame[17] = 0x1F;
61 }
62
63 static int
64 get_line()
65 {
66 char *cp;
67
68 if (!fgets(linebuf, sizeof linebuf, inf))
69 return 1;
70 lineno++;
71 if (!index(linebuf, '\n')) {
72 fprintf(stderr, "%s line %d: too long or missing newline\n",
73 infname, lineno);
74 exit(1);
75 }
76 nfields = 0;
77 for (cp = linebuf; ; ) {
78 while (isspace(*cp))
79 cp++;
80 if (*cp == '\0' || *cp == '#')
81 break;
82 if (nfields >= MAX_FIELDS) {
83 fprintf(stderr, "%s line %d: too many fields\n",
84 infname, lineno);
85 exit(1);
86 }
87 fields[nfields++] = cp;
88 while (*cp && !isspace(*cp))
89 cp++;
90 if (*cp)
91 *cp++ = '\0';
92 }
93 return 0;
94 }
95
96 static int
97 get_line_nonempty()
98 {
99 int rc;
100
101 for (;;) {
102 rc = get_line();
103 if (rc)
104 return rc;
105 if (nfields)
106 return 0;
107 }
108 }
109
110 static void
111 set_speech_params(start_param, start_arg)
112 unsigned start_param, start_arg;
113 {
114 unsigned ni, no;
115 u_long val;
116 char *cp;
117
118 no = start_param;
119 for (ni = start_arg; ni < nfields; ni++) {
120 if (!isxdigit(fields[ni][0])) {
121 inv_number: fprintf(stderr,
122 "%s line %d: field \"%s\" is not a valid number\n",
123 infname, lineno, fields[ni]);
124 exit(1);
125 }
126 val = strtoul(fields[ni], &cp, 16);
127 if (*cp)
128 goto inv_number;
129 if (val > 0x7FF) {
130 fprintf(stderr,
131 "%s line %d: number \"%s\" is too large for a speech parameter\n",
132 infname, lineno, fields[ni]);
133 exit(1);
134 }
135 enc_frame[no++] = val;
136 }
137 }
138
139 static void
140 handle_r0()
141 {
142 if (nfields != 2) {
143 fprintf(stderr, "%s line %d: R0 takes one argument\n",
144 infname, lineno);
145 exit(1);
146 }
147 set_speech_params(0, 1);
148 }
149
150 static void
151 handle_lpc()
152 {
153 if (nfields != 5) {
154 fprintf(stderr, "%s line %d: LPC takes 4 arguments\n",
155 infname, lineno);
156 exit(1);
157 }
158 set_speech_params(1, 1);
159 }
160
161 static void
162 handle_mode()
163 {
164 if (nfields != 2) {
165 fprintf(stderr, "%s line %d: Mode takes one argument\n",
166 infname, lineno);
167 exit(1);
168 }
169 set_speech_params(5, 1);
170 }
171
172 static void
173 handle_sf()
174 {
175 unsigned sf_0_based;
176
177 if (nfields != 5) {
178 fprintf(stderr, "%s line %d: sf takes 4 arguments\n",
179 infname, lineno);
180 exit(1);
181 }
182 if (fields[1][0] < '1' || fields[1][0] > '4' || fields[1][1]) {
183 fprintf(stderr,
184 "%s line %d: first argument to sf must be in range [1,4]\n",
185 infname, lineno);
186 exit(1);
187 }
188 sf_0_based = fields[1][0] - '1';
189 set_speech_params(6 + sf_0_based * 3, 2);
190 }
191
192 static void
193 set_vad_sp()
194 {
195 if (nfields != 3) {
196 fprintf(stderr, "%s line %d: vad-sp takes 2 arguments\n",
197 infname, lineno);
198 exit(1);
199 }
200 if (fields[1][0] < '0' || fields[1][0] > '1' || fields[1][1]) {
201 fprintf(stderr,
202 "%s line %d: invalid VAD argument \"%s\" (must be 0 or 1)\n",
203 infname, lineno, fields[1]);
204 exit(1);
205 }
206 enc_frame[18] = fields[1][0] - '0';
207 if (fields[2][0] < '0' || fields[2][0] > '1' || fields[2][1]) {
208 fprintf(stderr,
209 "%s line %d: invalid SP argument \"%s\" (must be 0 or 1)\n",
210 infname, lineno, fields[2]);
211 exit(1);
212 }
213 enc_frame[19] = fields[2][0] - '0';
214 if (enc_frame[18] && !enc_frame[19]) {
215 fprintf(stderr,
216 "%s line %d: combination VAD=1 SP=0 is invalid\n",
217 infname, lineno);
218 exit(1);
219 }
220 }
221
222 static void
223 emit_frame()
224 {
225 if (gsmhr_check_common_params(enc_frame) < 0) {
226 fprintf(stderr,
227 "%s line %d: one of the preceding speech parameters is out of range\n",
228 infname, lineno);
229 exit(1);
230 }
231 fwrite(enc_frame, 2, GSMHR_NUM_PARAMS_ENC, outf);
232 }
233
234 main(argc, argv)
235 char **argv;
236 {
237 int rc;
238
239 if (argc != 3) {
240 fprintf(stderr, "usage: %s input.src output.cod\n", argv[0]);
241 exit(1);
242 }
243 infname = argv[1];
244 outfname = argv[2];
245
246 inf = fopen(infname, "r");
247 if (!inf) {
248 perror(infname);
249 exit(1);
250 }
251 outf = fopen(outfname, "w");
252 if (!outf) {
253 perror(outfname);
254 exit(1);
255 }
256
257 for (;;) {
258 rc = get_line_nonempty();
259 if (rc)
260 break;
261 if (!strcasecmp(fields[0], "all-0"))
262 set_all_0();
263 else if (!strcasecmp(fields[0], "dhf"))
264 set_dhf();
265 else if (!strcasecmp(fields[0], "r0"))
266 handle_r0();
267 else if (!strcasecmp(fields[0], "lpc"))
268 handle_lpc();
269 else if (!strcasecmp(fields[0], "mode"))
270 handle_mode();
271 else if (!strcasecmp(fields[0], "sf"))
272 handle_sf();
273 else if (!strcasecmp(fields[0], "sid-cw"))
274 set_sid_cw();
275 else if (!strcasecmp(fields[0], "vad-sp"))
276 set_vad_sp();
277 else if (!strcasecmp(fields[0], "emit-frame"))
278 emit_frame();
279 else {
280 fprintf(stderr,
281 "%s line %d: non-understood keyword \"%s\"\n",
282 infname, lineno, fields[0]);
283 exit(1);
284 }
285 }
286 exit(0);
287 }