2 * This file has been modified for the cdrkit suite.
4 * The behaviour and appearence of the program code below can differ to a major
5 * extent from the version distributed by the original author(s).
7 * For details, see Changelog file distributed with the cdrkit package. If you
8 * received this file from another source then ask the distributing person for
9 * a log of modifications.
13 /* @(#)cd_text.c 1.5 03/12/31 Copyright 2000-2001 Heiko Eissfeldt */
15 /* This is an include file! */
16 /**************** CD-Text special treatment **********************************/
19 unsigned char headerfield[4];
20 unsigned char textdatafield[12];
21 unsigned char crcfield[2];
24 static unsigned short crctab[1<<8] = { /* as calculated by initcrctab() */
25 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
26 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
27 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
28 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
29 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
30 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
31 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
32 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
33 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
34 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
35 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
36 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
37 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
38 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
39 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
40 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
41 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
42 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
43 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
44 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
45 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
46 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
47 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
48 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
49 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
50 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
51 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
52 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
53 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
54 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
55 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
56 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
61 static unsigned short updcrc(unsigned int p_crc, register unsigned char *cp,
64 static unsigned short updcrc(unsigned int p_crc, register unsigned char *cp,
67 register unsigned short crc = (unsigned short)p_crc;
69 crc = (crc<<8) ^ crctab[(crc>>(16-8)) ^ (*cp++)];
74 static unsigned short calcCRC(unsigned char *buf, unsigned bsize);
76 static unsigned short calcCRC(unsigned char *buf, unsigned bsize)
78 return updcrc( 0x0, (unsigned char *)buf, bsize );
81 static unsigned char fliptab[8] = {
92 static int flip_error_corr(unsigned char *b, int crc);
94 static int flip_error_corr(unsigned char *b, int crc)
98 for (i = 0; i < SUBSIZE; i++) {
103 if ((crc = calcCRC(b, SUBSIZE/8)) == 0) {
113 static int cdtext_crc_ok(cdtextpackdata *c);
115 static int cdtext_crc_ok(cdtextpackdata *c)
120 c->crcfield[0] ^= 0xff;
121 c->crcfield[1] ^= 0xff;
122 crc = calcCRC(((unsigned char *)c), 18);
123 retval = (0 == flip_error_corr((unsigned char *)c, crc));
124 c->crcfield[0] ^= 0xff;
125 c->crcfield[1] ^= 0xff;
127 fprintf(stderr, "%02x %02x %02x %02x ",
128 c->headerfield[0], c->headerfield[1], c->headerfield[2], c->headerfield[3]);
130 "%c %c %c %c %c %c %c %c %c %c %c %c "
131 , c->textdatafield[0]
132 , c->textdatafield[1]
133 , c->textdatafield[2]
134 , c->textdatafield[3]
135 , c->textdatafield[4]
136 , c->textdatafield[5]
137 , c->textdatafield[6]
138 , c->textdatafield[7]
139 , c->textdatafield[8]
140 , c->textdatafield[9]
141 , c->textdatafield[10]
142 , c->textdatafield[11]
144 fprintf(stderr, "%02x %02x \n"
155 static void dump_binary(cdtextpackdata *c);
157 static void dump_binary(cdtextpackdata *c)
159 fprintf(stderr, ": header fields %02x %02x %02x ",
160 c->headerfield[1], c->headerfield[2], c->headerfield[3]);
162 "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
163 , c->textdatafield[0]
164 , c->textdatafield[1]
165 , c->textdatafield[2]
166 , c->textdatafield[3]
167 , c->textdatafield[4]
168 , c->textdatafield[5]
169 , c->textdatafield[6]
170 , c->textdatafield[7]
171 , c->textdatafield[8]
172 , c->textdatafield[9]
173 , c->textdatafield[10]
174 , c->textdatafield[11]
179 static int process_header(cdtextpackdata *c, unsigned tracknr, int dbcc,
180 unsigned char *line);
182 static int process_header(cdtextpackdata *c, unsigned tracknr, int dbcc,
185 switch ((int)c->headerfield[0]) {
187 case 0x80: /* Title of album or track */
189 fprintf (stderr, "Title");
191 if (tracknr > 0 && tracknr < 100
192 && global.tracktitle[tracknr] == NULL) {
195 len = strlen((char *)line);
198 global.tracktitle[tracknr] = malloc(len + 1);
199 if (global.tracktitle[tracknr] != NULL) {
200 memcpy(global.tracktitle[tracknr], line, len);
201 global.tracktitle[tracknr][len] = '\0';
205 && global.disctitle == NULL) {
208 len = strlen((char *)line);
211 global.disctitle = malloc(len + 1);
212 if (global.disctitle != NULL) {
213 memcpy(global.disctitle, line, len);
214 global.disctitle[len] = '\0';
218 case 0x81: /* Name(s) of the performer(s) */
220 fprintf(stderr, "Performer(s)");
222 if (tracknr > 0 && tracknr < 100
223 && global.trackcreator[tracknr] == NULL) {
226 len = strlen((char *)line);
229 global.trackcreator[tracknr] = malloc(len + 1);
231 if (global.trackcreator[tracknr] != NULL) {
232 memcpy(global.trackcreator[tracknr], line, len);
233 global.trackcreator[tracknr][len] = '\0';
237 && global.creator == NULL) {
240 len = strlen((char *)line);
243 global.creator = malloc(len + 1);
244 if (global.creator != NULL) {
245 memcpy(global.creator, line, len);
246 global.creator[len] = '\0';
250 case 0x82: /* Name(s) of the songwriter(s) */
252 fprintf(stderr, "Songwriter(s)");
255 case 0x83: /* Name(s) of the composer(s) */
257 fprintf(stderr, "Composer(s)");
260 case 0x84: /* Name(s) of the arranger(s) */
262 fprintf(stderr, "Arranger(s)");
265 case 0x85: /* Message from content provider and/or artist */
267 fprintf(stderr, "Message");
270 case 0x86: /* Disc Identification and information */
272 fprintf(stderr, "Disc identification");
274 if (tracknr == 0 && line[0] != '\0') {
275 fprintf(stderr, "Disc identification: %s\n", line);
278 case 0x87: /* Genre Identification and information */
280 fprintf(stderr, "Genre identification");
283 case 0x8e: /* UPC/EAN code or ISRC code */
285 fprintf(stderr, "UPC or ISRC");
287 if (tracknr > 0 && tracknr < 100) {
288 Set_ISRC(tracknr, line);
290 if (tracknr == 0 && line[0] != '\0') {
294 case 0x88: /* Table of Content information */
296 fprintf(stderr, "Table of Content identification");
300 case 0x89: /* Second Table of Content information */
302 fprintf(stderr, "Second Table of Content identification");
306 case 0x8f: /* Size information of the block */
312 fprintf(stderr, "first track is %d, last track is %d\n",
314 c->textdatafield[2]);
315 if (c->textdatafield[3] & 0x80) {
316 fprintf(stderr, "Program Area CD Text information available\n");
317 if (c->textdatafield[3] & 0x40) {
318 fprintf(stderr, "Program Area copy protection available\n");
321 if (c->textdatafield[3] & 0x07) {
322 fprintf(stderr, "message information is %scopyrighted\n",
323 c->textdatafield[3] & 0x04 ? "": "not ");
324 fprintf(stderr, "Names of performer/songwriter/composer/arranger(s) are %scopyrighted\n",
325 c->textdatafield[3] & 0x02 ? "": "not ");
326 fprintf(stderr, "album and track names are %scopyrighted\n",
327 c->textdatafield[3] & 0x01 ? "": "not ");
329 fprintf(stderr, "%d packs with album/track names\n", c->textdatafield[4]);
330 fprintf(stderr, "%d packs with performer names\n", c->textdatafield[5]);
331 fprintf(stderr, "%d packs with songwriter names\n", c->textdatafield[6]);
332 fprintf(stderr, "%d packs with composer names\n", c->textdatafield[7]);
333 fprintf(stderr, "%d packs with arranger names\n", c->textdatafield[8]);
334 fprintf(stderr, "%d packs with artist or content provider messages\n", c->textdatafield[9]);
335 fprintf(stderr, "%d packs with disc identification information\n", c->textdatafield[10]);
336 fprintf(stderr, "%d packs with genre identification/information\n", c->textdatafield[11]);
339 fprintf(stderr, "%d packs with table of contents information\n", c->textdatafield[0]);
340 fprintf(stderr, "%d packs with second table of contents information\n", c->textdatafield[1]);
341 fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[2]);
342 fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[3]);
343 fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[4]);
344 fprintf(stderr, "%d packs with closed information\n", c->textdatafield[5]);
345 fprintf(stderr, "%d packs with UPC/EAN ISRC information\n", c->textdatafield[6]);
346 fprintf(stderr, "%d packs with size information\n", c->textdatafield[7]);
347 fprintf(stderr, "last sequence numbers for blocks 1-8: %d %d %d %d "
350 ,c->textdatafield[10]
351 ,c->textdatafield[11]
355 fprintf(stderr, "%d %d %d %d\n"
361 fprintf(stderr, "Language codes for blocks 1-8: %d %d %d %d %d %d %d %d\n"
368 ,c->textdatafield[10]
369 ,c->textdatafield[11]
373 fprintf(stderr, "Blocksize");
376 #if !defined DEBUG_CDTEXT
381 fprintf(stderr, ": header fields %02x %02x %02x ",
382 c->headerfield[1], c->headerfield[2], c->headerfield[3]);
383 #endif /* DETAILED */
385 #if !defined DEBUG_CDTEXT
389 fprintf(stderr, " for album : ->");
391 fprintf(stderr, " for track %2u: ->", tracknr);
393 fputs ((char *) line, stderr);
394 fputs ("<-", stderr);
404 " %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
405 , c->textdatafield[0]
406 , c->textdatafield[1]
407 , c->textdatafield[2]
408 , c->textdatafield[3]
409 , c->textdatafield[4]
410 , c->textdatafield[5]
411 , c->textdatafield[6]
412 , c->textdatafield[7]
413 , c->textdatafield[8]
414 , c->textdatafield[9]
415 , c->textdatafield[10]
416 , c->textdatafield[11]