b923ecbe |
1 | #include <stdio.h> |
2 | #include <stdlib.h> |
3 | #include <string.h> |
4 | #include "cue.h" |
5 | |
efcba75f |
6 | #include "../pico_int.h" |
9037e45d |
7 | // #define elprintf(w,f,...) printf(f "\n",##__VA_ARGS__); |
b923ecbe |
8 | |
67c81ee2 |
9 | #ifdef _MSC_VER |
10 | #define snprintf _snprintf |
11 | #endif |
f8af9634 |
12 | #ifdef __EPOC32__ |
ca482e5d |
13 | #define snprintf(b,s,...) sprintf(b,##__VA_ARGS__) |
14 | #endif |
67c81ee2 |
15 | |
b923ecbe |
16 | static char *mystrip(char *str) |
17 | { |
18 | int i, len; |
19 | |
20 | len = strlen(str); |
21 | for (i = 0; i < len; i++) |
22 | if (str[i] != ' ') break; |
23 | if (i > 0) memmove(str, str + i, len - i + 1); |
24 | |
25 | len = strlen(str); |
26 | for (i = len - 1; i >= 0; i--) |
27 | if (str[i] != ' ' && str[i] != '\r' && str[i] != '\n') break; |
28 | str[i+1] = 0; |
29 | |
30 | return str; |
31 | } |
32 | |
33 | static int get_token(const char *buff, char *dest, int len) |
34 | { |
35 | const char *p = buff; |
36 | char sep = ' '; |
37 | int d = 0, skip = 0; |
38 | |
39 | while (*p && *p == ' ') { |
40 | skip++; |
41 | p++; |
42 | } |
43 | |
44 | if (*p == '\"') { |
45 | sep = '\"'; |
46 | p++; |
47 | } |
48 | while (*p && *p != sep && d < len-1) |
49 | dest[d++] = *p++; |
50 | dest[d] = 0; |
51 | |
9037e45d |
52 | if (sep == '\"' && *p != sep) |
b923ecbe |
53 | elprintf(EL_STATUS, "cue: bad token: \"%s\"", buff); |
54 | |
55 | return d + skip; |
56 | } |
57 | |
58 | static char *get_ext(char *fname) |
59 | { |
60 | int len = strlen(fname); |
9037e45d |
61 | return (len >= 3) ? (fname + len - 3) : fname; |
b923ecbe |
62 | } |
63 | |
64 | |
65 | #define BEGINS(buff,str) (strncmp(buff,str,sizeof(str)-1) == 0) |
66 | |
67 | /* note: tracks[0] is not used */ |
9037e45d |
68 | cue_data_t *cue_parse(const char *fname) |
b923ecbe |
69 | { |
c9e1affc |
70 | char buff[256], current_file[256], buff2[32], *current_filep; |
b923ecbe |
71 | FILE *f, *tmpf; |
c9e1affc |
72 | int ret, count = 0, count_alloc = 2, pending_pregap = 0; |
9037e45d |
73 | cue_data_t *data; |
b923ecbe |
74 | void *tmp; |
75 | |
76 | f = fopen(fname, "r"); |
77 | if (f == NULL) return NULL; |
78 | |
c9e1affc |
79 | snprintf(current_file, sizeof(current_file), "%s", fname); |
80 | for (current_filep = current_file + strlen(current_file); current_filep > current_file; current_filep--) |
81 | if (current_filep[-1] == '/' || current_filep[-1] == '\\') break; |
82 | |
b923ecbe |
83 | data = calloc(1, sizeof(*data) + count_alloc * sizeof(cue_track)); |
c9e1affc |
84 | if (data == NULL) { |
85 | fclose(f); |
86 | return NULL; |
87 | } |
b923ecbe |
88 | |
89 | while (!feof(f)) |
90 | { |
91 | tmp = fgets(buff, sizeof(buff), f); |
92 | if (tmp == NULL) break; |
93 | |
94 | mystrip(buff); |
95 | if (buff[0] == 0) continue; |
0bccafeb |
96 | if (BEGINS(buff, "TITLE ") || BEGINS(buff, "PERFORMER ") || BEGINS(buff, "SONGWRITER ")) |
b923ecbe |
97 | continue; /* who would put those here? Ignore! */ |
98 | else if (BEGINS(buff, "FILE ")) |
99 | { |
c9e1affc |
100 | get_token(buff+5, current_filep, sizeof(current_file) - (current_filep - current_file)); |
b923ecbe |
101 | } |
102 | else if (BEGINS(buff, "TRACK ")) |
103 | { |
104 | count++; |
105 | if (count >= count_alloc) { |
106 | count_alloc *= 2; |
107 | tmp = realloc(data, sizeof(*data) + count_alloc * sizeof(cue_track)); |
108 | if (tmp == NULL) { count--; break; } |
9037e45d |
109 | data = tmp; |
b923ecbe |
110 | } |
111 | memset(&data->tracks[count], 0, sizeof(data->tracks[0])); |
112 | if (count == 1 || strcmp(data->tracks[1].fname, current_file) != 0) |
113 | { |
114 | data->tracks[count].fname = strdup(current_file); |
115 | if (data->tracks[count].fname == NULL) break; |
116 | |
117 | tmpf = fopen(current_file, "rb"); |
118 | if (tmpf == NULL) { |
119 | elprintf(EL_STATUS, "cue: bad/missing file: \"%s\"", current_file); |
120 | count--; break; |
121 | } |
122 | fclose(tmpf); |
123 | } |
c9e1affc |
124 | data->tracks[count].pregap = pending_pregap; |
125 | pending_pregap = 0; |
b923ecbe |
126 | // track number |
127 | ret = get_token(buff+6, buff2, sizeof(buff2)); |
128 | if (count != atoi(buff2)) |
129 | elprintf(EL_STATUS, "cue: track index mismatch: track %i is track %i in cue", |
130 | count, atoi(buff2)); |
131 | // check type |
132 | get_token(buff+6+ret, buff2, sizeof(buff2)); |
9037e45d |
133 | if (strcmp(buff2, "MODE1/2352") == 0) |
b923ecbe |
134 | data->tracks[count].type = CT_BIN; |
9037e45d |
135 | else if (strcmp(buff2, "MODE1/2048") == 0) |
b923ecbe |
136 | data->tracks[count].type = CT_ISO; |
9037e45d |
137 | else if (strcmp(buff2, "AUDIO") == 0) |
b923ecbe |
138 | { |
139 | if (data->tracks[count].fname != NULL) |
140 | { |
141 | // rely on extension, not type in cue.. |
142 | char *ext = get_ext(data->tracks[count].fname); |
143 | if (strcasecmp(ext, "mp3") == 0) |
144 | data->tracks[count].type = CT_MP3; |
145 | else if (strcasecmp(ext, "wav") == 0) |
146 | data->tracks[count].type = CT_WAV; |
147 | else { |
148 | elprintf(EL_STATUS, "unhandled audio format: \"%s\"", |
149 | data->tracks[count].fname); |
150 | } |
151 | } |
9037e45d |
152 | else |
153 | { |
154 | // propagate previous |
155 | data->tracks[count].type = data->tracks[count-1].type; |
156 | } |
b923ecbe |
157 | } |
158 | else { |
159 | elprintf(EL_STATUS, "unhandled track type: \"%s\"", buff2); |
160 | } |
161 | } |
162 | else if (BEGINS(buff, "INDEX ")) |
163 | { |
164 | int m, s, f; |
165 | // type |
166 | ret = get_token(buff+6, buff2, sizeof(buff2)); |
167 | if (atoi(buff2) == 0) continue; |
168 | if (atoi(buff2) != 1) { |
169 | elprintf(EL_STATUS, "cue: don't know how to handle: \"%s\"", buff); |
170 | count--; break; |
171 | } |
172 | // offset in file |
173 | get_token(buff+6+ret, buff2, sizeof(buff2)); |
9037e45d |
174 | ret = sscanf(buff2, "%d:%d:%d", &m, &s, &f); |
b923ecbe |
175 | if (ret != 3) { |
176 | elprintf(EL_STATUS, "cue: failed to parse: \"%s\"", buff); |
177 | count--; break; |
178 | } |
179 | data->tracks[count].sector_offset = m*60*75 + s*75 + f; |
9037e45d |
180 | // some strange .cues may need this |
181 | if (data->tracks[count].fname != NULL && strcmp(data->tracks[count].fname, current_file) != 0) |
182 | { |
183 | free(data->tracks[count].fname); |
184 | data->tracks[count].fname = strdup(current_file); |
185 | } |
186 | if (data->tracks[count].fname == NULL && strcmp(data->tracks[1].fname, current_file) != 0) |
187 | { |
188 | data->tracks[count].fname = strdup(current_file); |
189 | } |
b923ecbe |
190 | } |
c9e1affc |
191 | else if (BEGINS(buff, "PREGAP ") || BEGINS(buff, "POSTGAP ")) |
b923ecbe |
192 | { |
193 | int m, s, f; |
194 | get_token(buff+7, buff2, sizeof(buff2)); |
9037e45d |
195 | ret = sscanf(buff2, "%d:%d:%d", &m, &s, &f); |
b923ecbe |
196 | if (ret != 3) { |
197 | elprintf(EL_STATUS, "cue: failed to parse: \"%s\"", buff); |
198 | continue; |
199 | } |
c9e1affc |
200 | // pregap overrides previous postgap? |
201 | // by looking at some .cues produced by some programs I've decided that.. |
202 | if (BEGINS(buff, "PREGAP ")) |
203 | data->tracks[count].pregap = m*60*75 + s*75 + f; |
204 | else |
205 | pending_pregap = m*60*75 + s*75 + f; |
b923ecbe |
206 | } |
0bccafeb |
207 | else if (BEGINS(buff, "REM LENGTH ")) // custom "extension" |
208 | { |
209 | int m, s, f; |
210 | get_token(buff+11, buff2, sizeof(buff2)); |
211 | ret = sscanf(buff2, "%d:%d:%d", &m, &s, &f); |
212 | if (ret != 3) continue; |
213 | data->tracks[count].sector_xlength = m*60*75 + s*75 + f; |
214 | } |
215 | else if (BEGINS(buff, "REM")) |
216 | continue; |
b923ecbe |
217 | else |
218 | { |
9037e45d |
219 | elprintf(EL_STATUS, "cue: unhandled line: \"%s\"", buff); |
b923ecbe |
220 | } |
221 | } |
222 | |
223 | if (count < 1 || data->tracks[1].fname == NULL) { |
224 | // failed.. |
225 | for (; count > 0; count--) |
226 | if (data->tracks[count].fname != NULL) |
227 | free(data->tracks[count].fname); |
228 | free(data); |
229 | return NULL; |
230 | } |
231 | |
232 | data->track_count = count; |
233 | return data; |
234 | } |
235 | |
236 | |
9037e45d |
237 | void cue_destroy(cue_data_t *data) |
b923ecbe |
238 | { |
239 | int c; |
240 | |
241 | if (data == NULL) return; |
242 | |
243 | for (c = data->track_count; c > 0; c--) |
244 | if (data->tracks[c].fname != NULL) |
245 | free(data->tracks[c].fname); |
246 | free(data); |
247 | } |
248 | |
249 | |
9037e45d |
250 | #if 0 |
b923ecbe |
251 | int main(int argc, char *argv[]) |
252 | { |
9037e45d |
253 | cue_data_t *data = cue_parse(argv[1]); |
b923ecbe |
254 | int c; |
255 | |
256 | if (data == NULL) return 1; |
257 | |
258 | for (c = 1; c <= data->track_count; c++) |
9037e45d |
259 | printf("%2i: %i %9i %02i:%02i:%02i %9i %s\n", c, data->tracks[c].type, data->tracks[c].sector_offset, |
260 | data->tracks[c].sector_offset / (75*60), data->tracks[c].sector_offset / 75 % 60, |
261 | data->tracks[c].sector_offset % 75, data->tracks[c].pregap, data->tracks[c].fname); |
b923ecbe |
262 | |
263 | cue_destroy(data); |
264 | |
265 | return 0; |
266 | } |
9037e45d |
267 | #endif |
b923ecbe |
268 | |