summaryrefslogtreecommitdiff
path: root/icedax/cd_text.c
diff options
context:
space:
mode:
Diffstat (limited to 'icedax/cd_text.c')
-rw-r--r--icedax/cd_text.c421
1 files changed, 421 insertions, 0 deletions
diff --git a/icedax/cd_text.c b/icedax/cd_text.c
new file mode 100644
index 0000000..6e93b13
--- /dev/null
+++ b/icedax/cd_text.c
@@ -0,0 +1,421 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)cd_text.c 1.5 03/12/31 Copyright 2000-2001 Heiko Eissfeldt */
+
+/* This is an include file! */
+/**************** CD-Text special treatment **********************************/
+
+typedef struct {
+ unsigned char headerfield[4];
+ unsigned char textdatafield[12];
+ unsigned char crcfield[2];
+} cdtextpackdata;
+
+static unsigned short crctab[1<<8] = { /* as calculated by initcrctab() */
+ 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+ 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+ 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+ 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+ 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+ 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+ 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+ 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+ 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+ 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+ 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+ 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+ 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+ 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+ 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+ 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+ 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+ 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+ 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+ 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+ 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+ 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+ 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+ 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+ 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+ 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+ 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+ 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+ 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+ 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+ 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+ 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
+ };
+
+#define SUBSIZE 18*8
+
+static unsigned short updcrc(unsigned int p_crc, register unsigned char *cp,
+ register size_t cnt);
+
+static unsigned short updcrc(unsigned int p_crc, register unsigned char *cp,
+ register size_t cnt)
+{
+ register unsigned short crc = (unsigned short)p_crc;
+ while( cnt-- ) {
+ crc = (crc<<8) ^ crctab[(crc>>(16-8)) ^ (*cp++)];
+ }
+ return( crc );
+}
+
+static unsigned short calcCRC(unsigned char *buf, unsigned bsize);
+
+static unsigned short calcCRC(unsigned char *buf, unsigned bsize)
+{
+ return updcrc( 0x0, (unsigned char *)buf, bsize );
+}
+
+static unsigned char fliptab[8] = {
+ 0x01,
+ 0x02,
+ 0x04,
+ 0x08,
+ 0x10,
+ 0x20,
+ 0x40,
+ 0x80,
+};
+
+static int flip_error_corr(unsigned char *b, int crc);
+
+static int flip_error_corr(unsigned char *b, int crc)
+{
+ if (crc != 0) {
+ int i;
+ for (i = 0; i < SUBSIZE; i++) {
+ char c;
+
+ c = fliptab[i%8];
+ b[i / 8] ^= c;
+ if ((crc = calcCRC(b, SUBSIZE/8)) == 0) {
+ return crc;
+ }
+ b[i / 8] ^= c;
+ }
+ }
+ return crc & 0xffff;
+}
+
+
+static int cdtext_crc_ok(cdtextpackdata *c);
+
+static int cdtext_crc_ok(cdtextpackdata *c)
+{
+ int crc;
+ int retval;
+
+ c->crcfield[0] ^= 0xff;
+ c->crcfield[1] ^= 0xff;
+ crc = calcCRC(((unsigned char *)c), 18);
+ retval = (0 == flip_error_corr((unsigned char *)c, crc));
+ c->crcfield[0] ^= 0xff;
+ c->crcfield[1] ^= 0xff;
+#if 0
+ fprintf(stderr, "%02x %02x %02x %02x ",
+ c->headerfield[0], c->headerfield[1], c->headerfield[2], c->headerfield[3]);
+ fprintf(stderr,
+"%c %c %c %c %c %c %c %c %c %c %c %c "
+ , c->textdatafield[0]
+ , c->textdatafield[1]
+ , c->textdatafield[2]
+ , c->textdatafield[3]
+ , c->textdatafield[4]
+ , c->textdatafield[5]
+ , c->textdatafield[6]
+ , c->textdatafield[7]
+ , c->textdatafield[8]
+ , c->textdatafield[9]
+ , c->textdatafield[10]
+ , c->textdatafield[11]
+ );
+ fprintf(stderr, "%02x %02x \n"
+ , c->crcfield[0]
+ , c->crcfield[1]
+ );
+#endif
+ return retval;
+}
+
+#define DETAILED 0
+
+#if DETAILED
+static void dump_binary(cdtextpackdata *c);
+
+static void dump_binary(cdtextpackdata *c)
+{
+ fprintf(stderr, ": header fields %02x %02x %02x ",
+ c->headerfield[1], c->headerfield[2], c->headerfield[3]);
+ fprintf(stderr,
+"%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
+ , c->textdatafield[0]
+ , c->textdatafield[1]
+ , c->textdatafield[2]
+ , c->textdatafield[3]
+ , c->textdatafield[4]
+ , c->textdatafield[5]
+ , c->textdatafield[6]
+ , c->textdatafield[7]
+ , c->textdatafield[8]
+ , c->textdatafield[9]
+ , c->textdatafield[10]
+ , c->textdatafield[11]
+ );
+}
+#endif
+
+static int process_header(cdtextpackdata *c, unsigned tracknr, int dbcc,
+ unsigned char *line);
+
+static int process_header(cdtextpackdata *c, unsigned tracknr, int dbcc,
+ unsigned char *line)
+{
+ switch ((int)c->headerfield[0]) {
+
+ case 0x80: /* Title of album or track */
+#if DETAILED
+ fprintf (stderr, "Title");
+#endif
+ if (tracknr > 0 && tracknr < 100
+ && global.tracktitle[tracknr] == NULL) {
+ unsigned len;
+
+ len = strlen((char *)line);
+
+ if (len > 0)
+ global.tracktitle[tracknr] = malloc(len + 1);
+ if (global.tracktitle[tracknr] != NULL) {
+ memcpy(global.tracktitle[tracknr], line, len);
+ global.tracktitle[tracknr][len] = '\0';
+ }
+ } else
+ if (tracknr == 0
+ && global.disctitle == NULL) {
+ unsigned len;
+
+ len = strlen((char *)line);
+
+ if (len > 0)
+ global.disctitle = malloc(len + 1);
+ if (global.disctitle != NULL) {
+ memcpy(global.disctitle, line, len);
+ global.disctitle[len] = '\0';
+ }
+ }
+ break;
+ case 0x81: /* Name(s) of the performer(s) */
+#if DETAILED
+ fprintf(stderr, "Performer(s)");
+#endif
+ if (tracknr > 0 && tracknr < 100
+ && global.trackcreator[tracknr] == NULL) {
+ unsigned len;
+
+ len = strlen((char *)line);
+
+ if (len > 0)
+ global.trackcreator[tracknr] = malloc(len + 1);
+
+ if (global.trackcreator[tracknr] != NULL) {
+ memcpy(global.trackcreator[tracknr], line, len);
+ global.trackcreator[tracknr][len] = '\0';
+ }
+ } else
+ if (tracknr == 0
+ && global.creator == NULL) {
+ unsigned len;
+
+ len = strlen((char *)line);
+
+ if (len > 0)
+ global.creator = malloc(len + 1);
+ if (global.creator != NULL) {
+ memcpy(global.creator, line, len);
+ global.creator[len] = '\0';
+ }
+ }
+ break;
+ case 0x82: /* Name(s) of the songwriter(s) */
+#if DETAILED
+ fprintf(stderr, "Songwriter(s)");
+#endif
+ break;
+ case 0x83: /* Name(s) of the composer(s) */
+#if DETAILED
+ fprintf(stderr, "Composer(s)");
+#endif
+ break;
+ case 0x84: /* Name(s) of the arranger(s) */
+#if DETAILED
+ fprintf(stderr, "Arranger(s)");
+#endif
+ break;
+ case 0x85: /* Message from content provider and/or artist */
+#if DETAILED
+ fprintf(stderr, "Message");
+#endif
+ break;
+ case 0x86: /* Disc Identification and information */
+#if DETAILED
+ fprintf(stderr, "Disc identification");
+#endif
+ if (tracknr == 0 && line[0] != '\0') {
+ fprintf(stderr, "Disc identification: %s\n", line);
+ }
+ break;
+ case 0x87: /* Genre Identification and information */
+#if DETAILED
+ fprintf(stderr, "Genre identification");
+#endif
+ break;
+ case 0x8e: /* UPC/EAN code or ISRC code */
+#if DETAILED
+ fprintf(stderr, "UPC or ISRC");
+#endif
+ if (tracknr > 0 && tracknr < 100) {
+ Set_ISRC(tracknr, line);
+ } else
+ if (tracknr == 0 && line[0] != '\0') {
+ Set_MCN(line);
+ }
+ break;
+ case 0x88: /* Table of Content information */
+#if DETAILED
+ fprintf(stderr, "Table of Content identification");
+ dump_binary(c);
+#endif
+ return 0;
+ case 0x89: /* Second Table of Content information */
+#if DETAILED
+ fprintf(stderr, "Second Table of Content identification");
+ dump_binary(c);
+#endif
+ return 0;
+ case 0x8f: /* Size information of the block */
+#if DETAILED == 0
+ break;
+#else
+ switch (tracknr) {
+ case 0:
+ fprintf(stderr, "first track is %d, last track is %d\n",
+ c->textdatafield[1],
+ c->textdatafield[2]);
+ if (c->textdatafield[3] & 0x80) {
+ fprintf(stderr, "Program Area CD Text information available\n");
+ if (c->textdatafield[3] & 0x40) {
+ fprintf(stderr, "Program Area copy protection available\n");
+ }
+ }
+ if (c->textdatafield[3] & 0x07) {
+ fprintf(stderr, "message information is %scopyrighted\n",
+ c->textdatafield[3] & 0x04 ? "": "not ");
+ fprintf(stderr, "Names of performer/songwriter/composer/arranger(s) are %scopyrighted\n",
+ c->textdatafield[3] & 0x02 ? "": "not ");
+ fprintf(stderr, "album and track names are %scopyrighted\n",
+ c->textdatafield[3] & 0x01 ? "": "not ");
+ }
+ fprintf(stderr, "%d packs with album/track names\n", c->textdatafield[4]);
+ fprintf(stderr, "%d packs with performer names\n", c->textdatafield[5]);
+ fprintf(stderr, "%d packs with songwriter names\n", c->textdatafield[6]);
+ fprintf(stderr, "%d packs with composer names\n", c->textdatafield[7]);
+ fprintf(stderr, "%d packs with arranger names\n", c->textdatafield[8]);
+ fprintf(stderr, "%d packs with artist or content provider messages\n", c->textdatafield[9]);
+ fprintf(stderr, "%d packs with disc identification information\n", c->textdatafield[10]);
+ fprintf(stderr, "%d packs with genre identification/information\n", c->textdatafield[11]);
+ break;
+ case 1:
+ fprintf(stderr, "%d packs with table of contents information\n", c->textdatafield[0]);
+ fprintf(stderr, "%d packs with second table of contents information\n", c->textdatafield[1]);
+ fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[2]);
+ fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[3]);
+ fprintf(stderr, "%d packs with reserved information\n", c->textdatafield[4]);
+ fprintf(stderr, "%d packs with closed information\n", c->textdatafield[5]);
+ fprintf(stderr, "%d packs with UPC/EAN ISRC information\n", c->textdatafield[6]);
+ fprintf(stderr, "%d packs with size information\n", c->textdatafield[7]);
+ fprintf(stderr, "last sequence numbers for blocks 1-8: %d %d %d %d "
+ ,c->textdatafield[8]
+ ,c->textdatafield[9]
+ ,c->textdatafield[10]
+ ,c->textdatafield[11]
+ );
+ break;
+ case 2:
+ fprintf(stderr, "%d %d %d %d\n"
+ ,c->textdatafield[0]
+ ,c->textdatafield[1]
+ ,c->textdatafield[2]
+ ,c->textdatafield[3]
+ );
+ fprintf(stderr, "Language codes for blocks 1-8: %d %d %d %d %d %d %d %d\n"
+ ,c->textdatafield[4]
+ ,c->textdatafield[5]
+ ,c->textdatafield[6]
+ ,c->textdatafield[7]
+ ,c->textdatafield[8]
+ ,c->textdatafield[9]
+ ,c->textdatafield[10]
+ ,c->textdatafield[11]
+ );
+ break;
+ }
+ fprintf(stderr, "Blocksize");
+ dump_binary(c);
+ return 0;
+#if !defined DEBUG_CDTEXT
+ default:
+#else
+ }
+#endif
+ fprintf(stderr, ": header fields %02x %02x %02x ",
+ c->headerfield[1], c->headerfield[2], c->headerfield[3]);
+#endif /* DETAILED */
+
+#if !defined DEBUG_CDTEXT
+ }
+#if DETAILED
+ if (tracknr == 0) {
+ fprintf(stderr, " for album : ->");
+ } else {
+ fprintf(stderr, " for track %2u: ->", tracknr);
+ }
+ fputs ((char *) line, stderr);
+ fputs ("<-", stderr);
+#endif
+
+ if (dbcc != 0) {
+#else
+ {
+#endif
+ /* EMPTY */
+#if DETAILED
+ fprintf(stderr,
+" %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
+ , c->textdatafield[0]
+ , c->textdatafield[1]
+ , c->textdatafield[2]
+ , c->textdatafield[3]
+ , c->textdatafield[4]
+ , c->textdatafield[5]
+ , c->textdatafield[6]
+ , c->textdatafield[7]
+ , c->textdatafield[8]
+ , c->textdatafield[9]
+ , c->textdatafield[10]
+ , c->textdatafield[11]
+ );
+#endif
+ }
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 18:28:38 +0000