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legacy/libburn/trunk/libburn/cdtext.c

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/* Copyright (c) 2011 - 2016 Thomas Schmitt <scdbackup@gmx.net>
Provided under GPL version 2 or later.
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include "libburn.h"
#include "init.h"
#include "structure.h"
#include "options.h"
#include "util.h"
#include "libdax_msgs.h"
extern struct libdax_msgs *libdax_messenger;
/* --------------------- Production of CD-TEXT packs -------------------- */
struct burn_pack_cursor {
unsigned char *packs;
int num_packs;
int td_used;
int hiseq[8];
int pack_count[16];
int track_offset;
};
/* @param flag bit0= double_byte characters
*/
int burn_create_new_pack(int pack_type, int track_no, int double_byte,
int block, int char_pos,
struct burn_pack_cursor *crs, int flag)
{
int idx;
if (crs->num_packs >= Libburn_leadin_cdtext_packs_maX) {
libdax_msgs_submit(libdax_messenger, -1, 0x0002018b,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
"Too many CD-TEXT packs", 0, 0);
return 0;
}
if (crs->hiseq[block] >= 255) {
libdax_msgs_submit(libdax_messenger, -1, 0x0002018e,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
"Too many CD-TEXT packs in block", 0, 0);
return 0;
}
if (char_pos > 15)
char_pos = 15;
else if (char_pos < 0)
char_pos = 0;
idx = crs->num_packs * 18;
crs->packs[idx++] = pack_type;
crs->packs[idx++] = track_no;
crs->packs[idx++] = crs->hiseq[block];
crs->packs[idx++] = ((flag & 1) << 7) | (block << 4) | char_pos;
crs->hiseq[block]++;
crs->td_used = 0;
crs->pack_count[pack_type - Libburn_pack_type_basE]++;
return 1;
}
/* Plain implementation of polynomial division on a Galois field, where
addition and subtraction both are binary exor. Euclidian algorithm.
Divisor is x^16 + x^12 + x^5 + 1 = 0x11021.
*/
static int crc_11021(unsigned char *data, int count, int flag)
{
int acc = 0, i;
for (i = 0; i < count * 8 + 16; i++) {
acc = (acc << 1);
if (i < count * 8)
acc |= ((data[i / 8] >> (7 - (i % 8))) & 1);
if (acc & 0x10000)
acc ^= 0x11021;
}
return acc;
}
/* @param flag bit0= repair mismatching checksums
bit1= repair checksums if all pack CRCs are 0
@return 0= no mismatch , >0 number of unrepaired mismatches
<0 number of repaired mismatches that were not 0
*/
int burn_cdtext_crc_mismatches(unsigned char *packs, int num_packs, int flag)
{
int i, residue, count = 0, repair;
unsigned char crc[2];
repair = flag & 1;
if (flag & 2) {
for (i = 0; i < num_packs * 18; i += 18)
if (packs[i + 16] || packs[i + 17])
break;
if (i == num_packs * 18)
repair = 1;
}
for (i = 0; i < num_packs * 18; i += 18) {
residue = crc_11021(packs + i, 16, 0);
crc[0] = ((residue >> 8) & 0xff) ^ 0xff;
crc[1] = ((residue ) & 0xff) ^ 0xff;
if(crc[0] != packs[i + 16] || crc[1] != packs[i + 17]) {
if (repair) {
if (packs[i + 16] || packs[i + 17])
count--;
packs[i + 16] = crc[0];
packs[i + 17] = crc[1];
} else
count++;
}
}
return count;
}
static int burn_finalize_text_pack(struct burn_pack_cursor *crs, int flag)
{
int residue = 0, i, idx;
idx = 18 * crs->num_packs;
for(i = 4 + crs->td_used; i < 16; i++)
crs->packs[idx + i] = 0;
crs->td_used = 12;
/* MMC-3 Annex J : CRC Field consists of 2 bytes.
The polynomial is X16 + X12 + X5 + 1. All bits shall be inverted.
*/
residue = crc_11021(crs->packs + idx, 16, 0) ^ 0xffff;
crs->packs[idx + 16] = (residue >> 8) & 0xff;
crs->packs[idx + 17] = residue & 0xff;
crs->num_packs++;
crs->td_used = 0;
return 1;
}
/* @param flag bit0= double_byte characters
*/
static int burn_create_tybl_packs(unsigned char *payload, int length,
int track_no, int pack_type, int block,
struct burn_pack_cursor *crs, int flag)
{
int i, ret, binary_part = 0, char_pos;
if (pack_type == 0x87)
binary_part = 2;
else if ((pack_type >= 0x88 && pack_type <= 0x8c) || pack_type == 0x8f)
binary_part = length;
for(i = 0; i < length; i++) {
if (crs->td_used == 0 || crs->td_used >= 12) {
if (crs->td_used > 0) {
ret = burn_finalize_text_pack(crs, 0);
if (ret <= 0)
return ret;
}
char_pos = (i - binary_part) / (1 + (flag & 1));
ret = burn_create_new_pack(pack_type, track_no,
(flag & 1), block, char_pos,
crs, flag & 1);
if (ret <= 0)
return ret;
}
crs->packs[crs->num_packs * 18 + 4 + crs->td_used] =
payload[i];
crs->td_used++;
}
return 1;
}
/* Finalize block by 0x8f. Set bytes 20 to 27 to 0 for now. */
static int burn_create_bl_size_packs(int block, unsigned char *char_codes,
unsigned char *copyrights,
unsigned char *languages,
int num_tracks,
struct burn_pack_cursor *crs, int flag)
{
int i, ret;
unsigned char payload[12];
payload[0] = char_codes[block];
payload[1] = crs->track_offset;
payload[2] = num_tracks + crs->track_offset - 1;
payload[3] = copyrights[block];
for (i = 0; i < 8; i++)
payload[i + 4] = crs->pack_count[i];
ret = burn_create_tybl_packs(payload, 12, 0, 0x8f, block, crs, 0);
if (ret <= 0)
return ret;
for (i = 0; i < 7; i++)
payload[i] = crs->pack_count[i + 8];
payload[7] = 3; /* always 3 packs of type 0x8f */
for (i = 0; i < 4; i++) {
/* Will be set when all blocks are done */
payload[i + 8] = 0;
}
ret = burn_create_tybl_packs(payload, 12, 1, 0x8f, block, crs, 0);
if (ret <= 0)
return ret;
for (i = 0; i < 4; i++) {
/* Will be set when all blocks are done */
payload[i] = 0;
}
for (i = 0; i < 8; i++) {
payload[i + 4] = languages[i];
}
ret = burn_create_tybl_packs(payload, 12, 2, 0x8f, block, crs, 0);
if (ret <= 0)
return ret;
ret = burn_finalize_text_pack(crs, 0);
if (ret <= 0)
return ret;
for (i = 0; i < 16; i++)
crs->pack_count[i] = 0;
return 1;
}
/* Text packs of track for type and block
@param flag bit0= write TAB, because content is identical to previous track
*/
static int burn_create_tybl_t_packs(struct burn_track *t, int track_no,
int pack_type, int block,
struct burn_pack_cursor *crs, int flag)
{
int ret, length = 0, idx, double_byte, flags= 0;
unsigned char *payload = NULL, dummy[8];
struct burn_cdtext *cdt;
cdt = t->cdtext[block];
idx = pack_type - Libburn_pack_type_basE;
if (cdt != NULL) {
if (cdt->length[idx] > 0) {
payload = cdt->payload[idx];
length = cdt->length[idx];
}
flags = cdt->flags;
}
if (payload == NULL) {
dummy[0]= 0;
payload = dummy;
length = strlen((char *) dummy) + 1;
}
double_byte = !!(flags & (1 <<(pack_type - Libburn_pack_type_basE)));
if (flag & 1) {
length = 0;
dummy[length++] = 9;
if (double_byte)
dummy[length++] = 9;
dummy[length++] = 0;
if (double_byte)
dummy[length++] = 0;
payload = dummy;
}
ret = burn_create_tybl_packs(payload, length, track_no,
pack_type, block, crs, double_byte);
return ret;
}
/* Check whether the content is the same as in the previous pack. If so,
advise to use the TAB abbreviation.
*/
static int burn_decide_cdtext_tab(int block, int pack_type,
struct burn_cdtext *cdt_curr,
struct burn_cdtext *cdt_prev, int flag)
{
int length, j, idx;
idx = pack_type - Libburn_pack_type_basE;
if (cdt_curr == NULL || cdt_prev == NULL)
return 0;
if (((cdt_curr->flags >> idx) & 1) != ((cdt_prev->flags >> idx) & 1))
return 0;
length = cdt_curr->length[idx];
if (length != cdt_prev->length[idx] ||
length <= 1 + ((cdt_curr->flags >> idx) & 1))
return 0;
for (j = 0; j < length; j++)
if (cdt_curr->payload[idx][j] != cdt_prev->payload[idx][j])
break;
if (j < length)
return 0;
return 1;
}
/* Text packs of session and of tracks (if applicable), for type and block
*/
static int burn_create_tybl_s_packs(struct burn_session *s,
int pack_type, int block,
struct burn_pack_cursor *crs, int flag)
{
int i, ret, idx, double_byte, use_tab;
struct burn_cdtext *cdt;
cdt = s->cdtext[block];
idx = pack_type - Libburn_pack_type_basE;
if (cdt->length[idx] == 0 || cdt->payload[idx] == NULL)
return 1;
double_byte = !!(cdt->flags &
(1 <<(pack_type - Libburn_pack_type_basE)));
ret = burn_create_tybl_packs(cdt->payload[idx], cdt->length[idx], 0,
pack_type, block, crs, double_byte);
if (ret <= 0)
return ret;
if ((pack_type < 0x80 || pack_type > 0x85) && pack_type != 0x8e) {
ret = burn_finalize_text_pack(crs, 0);
return ret;
}
for (i = 0; i < s->tracks; i++) {
if (i > 0)
use_tab = burn_decide_cdtext_tab(block, pack_type,
s->track[i]->cdtext[block],
s->track[i - 1]->cdtext[block], 0);
else
use_tab = 0;
ret = burn_create_tybl_t_packs(s->track[i],
i + crs->track_offset, pack_type,
block, crs, use_tab);
if (ret <= 0)
return ret;
}
/* Fill up last pack with 0s */
ret = burn_finalize_text_pack(crs, 0);
return ret;
}
/* ts B11210 : API */
/* @param flag bit0= do not return CD-TEXT packs, but return number of packs
*/
int burn_cdtext_from_session(struct burn_session *s,
unsigned char **text_packs, int *num_packs,
int flag)
{
int pack_type, block, ret, i, idx, j, residue;
struct burn_pack_cursor crs;
if (text_packs == NULL || num_packs == NULL) {
flag |= 1;
} else if (!(flag & 1)) {
*text_packs = NULL;
*num_packs = 0;
}
memset(&crs, 0, sizeof(struct burn_pack_cursor));
crs.track_offset = s->firsttrack;
BURN_ALLOC_MEM(crs.packs, unsigned char,
Libburn_leadin_cdtext_packs_maX * 18);
for (block = 0; block < 8; block++)
if (s->cdtext[block] != NULL)
break;
if (block == 8)
{ret = 1; goto ex;}
for (block= 0; block < 8; block++) {
if (s->cdtext[block] == NULL)
continue;
for (pack_type = 0x80;
pack_type < 0x80 + Libburn_pack_num_typeS; pack_type++) {
if (pack_type == 0x8f)
continue;
ret = burn_create_tybl_s_packs(s,
pack_type, block, &crs, 0);
if (ret <= 0)
goto ex;
}
ret = burn_create_bl_size_packs(block,
s->cdtext_char_code, s->cdtext_copyright,
s->cdtext_language, s->tracks, &crs, 0);
if (ret <= 0)
goto ex;
}
/* Insert the highest sequence numbers of each block into
the 0x8f packs 2 and 3 (bytes 20 to 27)
*/
for (i = 0; i < crs.num_packs; i++) {
idx = i * 18;
if (crs.packs[idx] == 0x8f && crs.packs[idx + 1] == 1) {
for (j = 0; j < 4; j++)
if (crs.hiseq[j] > 0)
crs.packs[idx + 4 + 8 + j] =
crs.hiseq[j] - 1;
else
crs.packs[idx + 4 + 8 + j] = 0;
} else if (crs.packs[idx] == 0x8f && crs.packs[idx + 1] == 2) {
for (j = 0; j < 4; j++)
if (crs.hiseq[j + 4] > 0)
crs.packs[idx + 4 + j] =
crs.hiseq[j + 4] - 1;
else
crs.packs[idx + 4 + j] = 0;
} else
continue;
/* Re-compute checksum */
residue = crc_11021(crs.packs + idx, 16, 0) ^ 0xffff;
crs.packs[idx + 16] = (residue >> 8) & 0xff;
crs.packs[idx + 17] = residue & 0xff;
}
ret = 1;
ex:;
if (ret <= 0 || (flag & 1)) {
if (ret > 0)
ret = crs.num_packs;
else if (flag & 1)
ret = -1;
BURN_FREE_MEM(crs.packs);
} else {
if (crs.num_packs > 0)
*text_packs = crs.packs;
else
BURN_FREE_MEM(crs.packs);
*num_packs = crs.num_packs;
}
return(ret);
}
/* ---------------- Reader of Sony Input Sheet Version 0.7T ------------- */
/* @param flag bit0= allow two byte codes 0xNNNN or 0xNN 0xNN
*/
static int v07t_hexcode(char *payload, int flag)
{
unsigned int x;
int lo, hi, l;
char buf[10], *cpt;
l = strlen(payload);
if (strncmp(payload, "0x", 2) != 0)
return -1;
if ((l == 6 || l == 9) && (flag & 1))
goto double_byte;
if (strlen(payload) != 4)
return -1;
if (!(isxdigit(payload[2]) && isxdigit(payload[3])))
return -1;
sscanf(payload + 2, "%x", &x);
return x;
double_byte:;
strcpy(buf, payload);
buf[4] = 0;
hi = v07t_hexcode(buf, 0);
if (strlen(payload) == 6) {
buf[4] = payload[4];
buf[2] = '0';
buf[3] = 'x';
cpt = buf + 2;
} else {
if(payload[4] != 32 && payload[4] != 9)
return(-1);
cpt = buf + 5;
}
lo = v07t_hexcode(cpt, 0);
if (lo < 0 || hi < 0)
return -1;
return ((hi << 8) | lo);
}
static int v07t_cdtext_char_code(char *payload, int flag)
{
int ret;
char *msg = NULL;
ret = v07t_hexcode(payload, 0);
if (ret >= 0)
return ret;
if (strstr(payload, "8859") != NULL)
return 0x00;
else if(strstr(payload, "ASCII") != NULL)
return 0x01;
else if(strstr(payload, "JIS") != NULL)
return 0x80;
BURN_ALLOC_MEM(msg, char, 160);
sprintf(msg, "Unknown v07t Text Code '%.80s'", payload);
libdax_msgs_submit(libdax_messenger, -1, 0x00020191,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = -1;
ex:;
BURN_FREE_MEM(msg);
return ret;
}
static int v07t_cdtext_lang_code(char *payload, int flag)
{
int i, ret;
static char *languages[128] = {
BURN_CDTEXT_LANGUAGES_0X00,
BURN_CDTEXT_FILLER,
BURN_CDTEXT_LANGUAGES_0X45
};
char *msg = NULL;
ret = v07t_hexcode(payload, 0);
if (ret >= 0)
return ret;
if (payload[0] != 0)
for(i = 0; i < 128; i++)
if(strcmp(languages[i], payload) == 0)
return i;
BURN_ALLOC_MEM(msg, char, 160);
sprintf(msg, "Unknown v07t Language Code '%.80s'", payload);
libdax_msgs_submit(libdax_messenger, -1, 0x00020191,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = -1;
ex:;
BURN_FREE_MEM(msg);
return ret;
}
static int v07t_cdtext_genre_code(char *payload, int flag)
{
int i, ret;
static char *genres[BURN_CDTEXT_NUM_GENRES] = {
BURN_CDTEXT_GENRE_LIST
};
char *msg = NULL;
ret = v07t_hexcode(payload, 1);
if(ret >= 0)
return ret;
for (i= 0; i < BURN_CDTEXT_NUM_GENRES; i++)
if (strcmp(genres[i], payload) == 0)
return i;
BURN_ALLOC_MEM(msg, char, 160);
sprintf(msg, "Unknown v07t Genre Code '%.80s'", payload);
libdax_msgs_submit(libdax_messenger, -1, 0x00020191,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = -1;
ex:;
BURN_FREE_MEM(msg);
return ret;
}
static int v07t_cdtext_len_db(char *payload, int *char_code,
int *length, int *double_byte, int flag)
{
if (*char_code < 0)
*char_code = 0x00;
*double_byte = (*char_code == 0x80);
*length = strlen(payload) + 1 + *double_byte;
return 1;
}
static int v07t_cdtext_to_session(struct burn_session *session, int block,
char *payload, int *char_code, int pack_type,
char *pack_type_name, int flag)
{
int length, double_byte, ret;
ret = v07t_cdtext_len_db(payload, char_code, &length, &double_byte, 0);
if (ret <= 0)
return ret;
ret = burn_session_set_cdtext(session, block, pack_type,
pack_type_name, (unsigned char *) payload, length,
double_byte);
return ret;
}
static int v07t_cdtext_to_track(struct burn_track *track, int block,
char *payload, int *char_code, int pack_type,
char *pack_type_name, int flag)
{
int length, double_byte, ret;
ret = v07t_cdtext_len_db(payload, char_code, &length, &double_byte, 0);
if (ret <= 0)
return ret;
ret = burn_track_set_cdtext(track, block, pack_type, pack_type_name,
(unsigned char *) payload, length, double_byte);
return ret;
}
static int v07t_apply_to_session(struct burn_session *session, int block,
int char_codes[8], int copyrights[8], int languages[8],
int session_attr_seen[16], int track_attr_seen[16],
int genre_code, char *genre_text, int flag)
{
int i, ret, length;
char *line = NULL;
BURN_ALLOC_MEM(line, char, 4096);
for (i= 0x80; i <= 0x8e; i++) {
if (i > 0x85 && i != 0x8e)
continue;
if (session_attr_seen[i - 0x80] || !track_attr_seen[i - 0x80])
continue;
ret = v07t_cdtext_to_session(session, block, "",
char_codes + block, i, NULL, 0);
if (ret <= 0)
goto ex;
}
if (genre_code >= 0 && genre_text[0]) {
line[0] = (genre_code >> 8) & 0xff;
line[1] = genre_code & 0xff;
strcpy(line + 2, genre_text);
length = 2 + strlen(line + 2) + 1;
ret = burn_session_set_cdtext(session, block, 0, "GENRE",
(unsigned char *) line, length, 0);
if (ret <= 0)
goto ex;
}
ret = burn_session_set_cdtext_par(session, char_codes, copyrights,
languages, 0);
if (ret <= 0)
goto ex;
for (i = 0; i < 8; i++)
char_codes[i] = copyrights[i] = languages[i]= -1;
for (i = 0; i < 16; i++)
session_attr_seen[i] = track_attr_seen[i] = 0;
genre_text[0] = 0;
ret = 1;
ex:
BURN_FREE_MEM(line);
return ret;
}
/* ts B11215 API */
/* @param flag bit0= permission to read multiple blocks from the same sheet
bit1= do not attach CATALOG to session or ISRC to track for
writing to Q sub-channel
*/
int burn_session_input_sheet_v07t(struct burn_session *session,
char *path, int block, int flag)
{
int ret = 0, num_tracks, char_codes[8], copyrights[8], languages[8], i;
int genre_code = -1, track_offset = 1, pack_type, tno, tnum;
int session_attr_seen[16], track_attr_seen[16];
int int0x00 = 0x00, int0x01 = 0x01;
int additional_blocks = -1, line_count = 0, enable_multi_block = 0;
struct stat stbuf;
FILE *fp = NULL;
char *line = NULL, *eq_pos, *payload, *genre_text = NULL, track_txt[3];
char *msg = NULL;
struct burn_track **tracks;
BURN_ALLOC_MEM(msg, char, 4096);
BURN_ALLOC_MEM(line, char, 4096);
BURN_ALLOC_MEM(genre_text, char, 160);
for (i = 0; i < 8; i++)
char_codes[i] = copyrights[i] = languages[i]= -1;
for (i = 0; i < 16; i++)
session_attr_seen[i] = track_attr_seen[i] = 0;
genre_text[0] = 0;
tracks = burn_session_get_tracks(session, &num_tracks);
if (stat(path, &stbuf) == -1) {
cannot_open:;
sprintf(msg, "Cannot open CD-TEXT input sheet v07t '%.4000s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020193,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), errno, 0);
ret = 0; goto ex;
}
if (!S_ISREG(stbuf.st_mode)) {
sprintf(msg,
"File is not of usable type: CD-TEXT input sheet v07t '%s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020193,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
fp = fopen(path, "rb");
if (fp == NULL)
goto cannot_open;
while (1) {
if (burn_sfile_fgets(line, 4095, fp) == NULL) {
if (!ferror(fp))
break;
sprintf(msg,
"Cannot read all bytes from CD-TEXT input sheet v07t '%.4000s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020193,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
line_count++;
if (strlen(line) == 0)
continue;
eq_pos = strchr(line, '=');
if (eq_pos == NULL) {
sprintf(msg,
"CD-TEXT v07t input sheet line without '=' : '%.4000s'",
line);
libdax_msgs_submit(libdax_messenger, -1, 0x00020194,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
for (payload = eq_pos + 1; *payload == 32 || *payload == 9;
payload++);
*eq_pos = 0;
for (eq_pos--;
(*eq_pos == 32 || *eq_pos == 9) && eq_pos > line;
eq_pos--)
*eq_pos= 0;
if (payload[0] == 0)
continue;
if (strcmp(line, "Text Code") == 0) {
ret = v07t_cdtext_char_code(payload, 0);
if (ret < 0)
goto ex;
if (char_codes[block] >= 0 &&
char_codes[block] != ret) {
libdax_msgs_submit(libdax_messenger, -1,
0x00020192, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
"Unexpected v07t Text Code change",
0, 0);
ret = 0; goto ex;
}
char_codes[block] = ret;
} else if (strcmp(line, "Language Code") == 0) {
ret = v07t_cdtext_lang_code(payload, 0);
if(ret < 0)
goto ex;
languages[block] = ret;
} else if (strcmp(line, "0x80") == 0 ||
strcmp(line, "Album Title") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "TITLE", 0);
if (ret <= 0)
goto ex;
session_attr_seen[0x0] = 1;
} else if (strcmp(line, "0x81") == 0 ||
strcmp(line, "Artist Name") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "PERFORMER", 0);
if (ret <= 0)
goto ex;
session_attr_seen[0x1] = 1;
} else if (strcmp(line, "0x82") == 0 ||
strcmp(line, "Songwriter") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "SONGWRITER",
0);
if (ret <= 0)
goto ex;
session_attr_seen[0x2] = 1;
} else if (strcmp(line, "0x83") == 0 ||
strcmp(line, "Composer") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "COMPOSER", 0);
if (ret <= 0)
goto ex;
session_attr_seen[0x3] = 1;
} else if (strcmp(line, "0x84") == 0 ||
strcmp(line, "Arranger") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "ARRANGER", 0);
if (ret <= 0)
goto ex;
session_attr_seen[0x4] = 1;
} else if (strcmp(line, "0x85") == 0 ||
strcmp(line, "Album Message") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
char_codes + block, 0, "MESSAGE", 0);
if (ret <= 0)
goto ex;
session_attr_seen[0x5] = 1;
} else if (strcmp(line, "0x86") == 0 ||
strcmp(line, "Catalog Number") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
&int0x01, 0, "DISCID", 0);
if(ret <= 0)
goto ex;
} else if (strcmp(line, "Genre Code") == 0) {
genre_code = v07t_cdtext_genre_code(payload, 0);
if (genre_code < 0) {
ret = 0; goto ex;
}
} else if (strcmp(line, "Genre Information") == 0) {
strncpy(genre_text, payload, 159);
genre_text[159] = 0;
} else if (strcmp(line, "0x8d") == 0 ||
strcmp(line, "Closed Information") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
&int0x00, 0, "CLOSED", 0);
if (ret <= 0)
goto ex;
} else if(strcmp(line, "0x8e") == 0 ||
strcmp(line, "UPC / EAN") == 0) {
ret = v07t_cdtext_to_session(session, block, payload,
&int0x01, 0, "UPC_ISRC", 0);
if (ret <= 0)
goto ex;
if (!(flag & 2)) {
memcpy(session->mediacatalog, payload, 13);
session->mediacatalog[13] = 0;
}
session_attr_seen[0xe] = 1;
} else if (strncmp(line, "Disc Information ", 17) == 0) {
/* >>> ??? is this good for anything ? */;
} else if (strcmp(line, "Input Sheet Version") == 0) {
if (strcmp(payload, "0.7T") != 0) {
sprintf(msg,
"Wrong Input Sheet Version '%.4000s'. Expected '0.7T'.",
payload);
libdax_msgs_submit(libdax_messenger, -1,
0x00020194, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
if (flag & 1)
if (line_count == 1)
enable_multi_block = 1;
if (enable_multi_block) {
if (additional_blocks >= 0) {
if (block == 7) {
libdax_msgs_submit(
libdax_messenger, -1, 0x000201a0,
LIBDAX_MSGS_SEV_WARNING, LIBDAX_MSGS_PRIO_HIGH,
"Maximum number of CD-TEXT blocks exceeded",
0, 0);
break;
}
ret = v07t_apply_to_session(
session, block, char_codes,
copyrights, languages,
session_attr_seen,
track_attr_seen,
genre_code, genre_text, 0);
if (ret <= 0)
goto ex;
block++;
}
additional_blocks++;
}
} else if (strcmp(line, "Remarks") == 0) {
;
} else if (strcmp(line, "Text Data Copy Protection") == 0) {
ret = v07t_hexcode(payload, 0);
if (ret >= 0)
copyrights[block] = ret;
else if (strcmp(payload, "ON") == 0)
copyrights[block] = 0x03;
else if (strcmp(payload, "OFF") == 0)
copyrights[block] = 0x00;
else {
sprintf(msg,
"Unknown v07t Text Data Copy Protection '%.4000s'",
payload);
libdax_msgs_submit(libdax_messenger, -1,
0x00020191, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
} else if (strcmp(line, "First Track Number") == 0) {
ret = -1;
sscanf(payload, "%d", &ret);
if (ret <= 0 || ret > 99) {
bad_tno:;
sprintf(msg,
"Inappropriate v07t First Track Number '%.4000s'",
payload);
libdax_msgs_submit(libdax_messenger, -1,
0x00020194, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
} else {
track_offset = ret;
ret = burn_session_set_start_tno(session,
track_offset, 0);
if (ret <= 0)
goto ex;
}
} else if (strcmp(line, "Last Track Number") == 0) {
ret = -1;
sscanf(payload, "%d", &ret);
if (ret < 0) {
goto bad_tno;
} else {
/* >>> ??? Is it good for anything ? */;
}
} else if (strncmp(line, "Track ", 6) == 0) {
tno = -1;
sscanf(line + 6, "%d", &tno);
if (tno < 1 || tno - track_offset < 0 ||
tno - track_offset >= num_tracks) {
track_txt[0] = line[6];
track_txt[1] = line[7];
track_txt[2] = 0;
bad_track_no:;
sprintf(msg,
"Inappropriate v07t Track number '%.3900s'",
track_txt);
sprintf(msg + strlen(msg),
" (acceptable range: %2.2d to %2.2d)",
track_offset,
num_tracks + track_offset - 1);
libdax_msgs_submit(libdax_messenger, -1,
0x00020194, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
tnum = tno - track_offset;
if (strcmp(line, "0x80") == 0 ||
strcmp(line + 9, "Title") == 0)
pack_type = 0x80;
else if (strcmp(line + 9, "0x81") == 0 ||
strcmp(line + 9, "Artist") == 0)
pack_type = 0x81;
else if (strcmp(line + 9, "0x82") == 0 ||
strcmp(line + 9, "Songwriter") == 0)
pack_type = 0x82;
else if (strcmp(line + 9, "0x83") == 0 ||
strcmp(line + 9, "Composer") == 0)
pack_type = 0x83;
else if (strcmp(line + 9, "0x84") == 0 ||
strcmp(line + 9, "Arranger") == 0)
pack_type = 0x84;
else if (strcmp(line + 9, "0x85") == 0 ||
strcmp(line + 9, "Message") == 0)
pack_type = 0x85;
else if (strcmp(line + 9, "0x8e") == 0 ||
strcmp(line + 9, "ISRC") == 0) {
pack_type = 0x8e;
if (!(flag & 2)) {
ret = burn_track_set_isrc_string(
tracks[tnum], payload, 0);
if (ret <= 0)
goto ex;
}
} else {
sprintf(msg,
"Unknown v07t Track purpose specifier '%s'",
line + 9);
libdax_msgs_submit(libdax_messenger, -1,
0x00020191, LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
ret = v07t_cdtext_to_track(tracks[tnum], block,
payload, &int0x00, pack_type, "", 0);
if (ret <= 0)
goto ex;
track_attr_seen[pack_type - 0x80] = 1;
} else if (strncmp(line, "ISRC ", 5) == 0) {
/* Track variation of UPC EAN = 0x8e */
tno = -1;
sscanf(line + 5, "%d", &tno);
if (tno <= 0 || tno - track_offset < 0 ||
tno - track_offset >= num_tracks) {
track_txt[0] = line[5];
track_txt[1] = line[6];
track_txt[2] = 0;
goto bad_track_no;
}
tnum = tno - track_offset;
if (!(flag & 2)) {
ret = burn_track_set_isrc_string(
tracks[tnum], payload, 0);
if (ret <= 0)
goto ex;
}
ret = v07t_cdtext_to_track(tracks[tnum], block,
payload, &int0x00, 0x8e, "", 0);
if (ret <= 0)
goto ex;
track_attr_seen[0xe] = 1;
} else {
sprintf(msg,
"Unknown v07t purpose specifier '%.4000s'",
line);
libdax_msgs_submit(libdax_messenger, -1, 0x00020191,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
}
ret = v07t_apply_to_session(session, block,
char_codes, copyrights, languages,
session_attr_seen, track_attr_seen,
genre_code, genre_text, 0);
if (ret <= 0)
goto ex;
ret = 1;
if (additional_blocks > 0)
ret += additional_blocks;;
ex:;
if(fp != NULL)
fclose(fp);
BURN_FREE_MEM(genre_text);
BURN_FREE_MEM(line);
BURN_FREE_MEM(msg);
return ret;
}
/* ts B11221 API */
int burn_cdtext_from_packfile(char *path, unsigned char **text_packs,
int *num_packs, int flag)
{
int ret = 0, residue = 0;
struct stat stbuf;
FILE *fp = NULL;
unsigned char head[4], tail[1];
char *msg = NULL;
BURN_ALLOC_MEM(msg, char, 4096);
*text_packs = NULL;
if (stat(path, &stbuf) == -1) {
cannot_open:;
sprintf(msg, "Cannot open CD-TEXT pack file '%.4000s'", path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020198,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), errno, 0);
ret = 0; goto ex;
}
if (!S_ISREG(stbuf.st_mode))
goto not_a_textfile;
residue = (stbuf.st_size % 18);
if(residue != 4 && residue != 0 && residue != 1) {
not_a_textfile:;
sprintf(msg,
"File is not of usable type or content for CD-TEXT packs: '%.4000s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020198,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
if (stbuf.st_size < 18)
goto not_a_textfile;
fp = fopen(path, "rb");
if (fp == NULL)
goto cannot_open;
if (residue == 4) { /* This is for files from cdrecord -vv -toc */
ret = fread(head, 4, 1, fp);
if (ret != 1) {
cannot_read:;
sprintf(msg,
"Cannot read all bytes from CD-TEXT pack file '%.4000s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x00020198,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), errno, 0);
ret = 0; goto ex;
}
if (head[0] * 256 + head[1] != stbuf.st_size - 2)
goto not_a_textfile;
}
*num_packs = (stbuf.st_size - residue) / 18;
if (*num_packs > 2048) {
/* Each block can have 256 text packs.
There are 8 blocks at most. */
sprintf(msg,
"CD-Text pack file too large (max. 36864 bytes): '%.4000s'",
path);
libdax_msgs_submit(libdax_messenger, -1, 0x0002018b,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
} if (*num_packs <= 0) {
strcpy(msg,
"CD-Text pack file contains no complete text pack");
libdax_msgs_submit(libdax_messenger, -1, 0x000201aa,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
burn_printify(msg), 0, 0);
ret = 0; goto ex;
}
BURN_ALLOC_MEM(*text_packs, unsigned char, *num_packs * 18);
ret = fread(*text_packs, *num_packs * 18, 1, fp);
if (ret != 1)
goto cannot_read;
if (residue == 1) { /* This is for Sony CDTEXT files */
ret = fread(tail, 1, 1, fp);
if (ret != 1)
goto cannot_read;
if (tail[0] != 0)
goto not_a_textfile;
}
ret= 1;
ex:;
if (ret <= 0) {
BURN_FREE_MEM(*text_packs);
*text_packs = NULL;
*num_packs = 0;
}
if (fp != NULL)
fclose(fp);
BURN_FREE_MEM(msg);
return ret;
}
/* --------------------------------- make_v07t -------------------------- */
static int search_pack(unsigned char *text_packs, int num_packs,
int start_no, int pack_type, int block,
unsigned char **found_pack, int *found_no, int flag)
{
int i;
for (i = start_no; i < num_packs; i++) {
if (pack_type >= 0)
if (text_packs[i * 18] != pack_type)
continue;
if (block >= 0)
if (((text_packs[i * 18 + 3] >> 4) & 7) != block)
continue;
*found_pack = text_packs + i * 18;
*found_no = i;
return 1;
}
*found_pack = NULL;
*found_no = num_packs;
return 0;
}
static void write_v07t_line(char **respt, char *spec, char *value, int vlen,
int *result_len, int flag)
{
int len;
if (vlen == -1)
vlen = strlen(value);
len = strlen(spec);
if (len < 19)
len = 19;
len += 3 + vlen + 1;
if(flag & 1) {
*result_len += len;
return;
}
sprintf(*respt, "%-19s = ", spec);
if (vlen > 0)
memcpy(*respt + strlen(*respt), value, vlen);
(*respt)[len - 1] = '\n';
(*respt)[len] = 0;
*respt+= len;
}
/*
@return -1 error
0 no pack of block,pack_type found
1 packs found, delimiter is single 0-byte
2 packs found, delimiter is double 0-byte
*/
static int collect_payload(unsigned char *text_packs, int num_packs,
int pack_type, int block,
unsigned char **payload, int *payload_count,
int flag)
{
unsigned char *pack;
int pack_no, ret, double_byte = 0;
*payload_count = 0;
for (pack_no = 0; ; pack_no++) {
ret = search_pack(text_packs, num_packs, pack_no, pack_type,
block, &pack, &pack_no, 0);
if (ret <= 0)
break;
*payload_count += 12;
}
if (*payload_count == 0)
return 0;
*payload = burn_alloc_mem(*payload_count + 1, 1, 0);
if (*payload == NULL)
return -1;
*payload_count = 0;
for (pack_no = 0; ; pack_no++) {
ret = search_pack(text_packs, num_packs, pack_no, pack_type,
block, &pack, &pack_no, 0);
if (ret <= 0)
break;
memcpy(*payload + *payload_count, pack + 4, 12);
*payload_count += 12;
if (pack[3] & 128)
double_byte = 1;
}
(*payload)[*payload_count] = 0;
return 1 + double_byte;
}
/*
@param flag bit0= use double 0 as delimiter
*/
static int is_payload_text_end(unsigned char *payload, int payload_count,
int i, int flag)
{
if (i >= payload_count)
return 1;
if (payload[i])
return 0;
if (!(flag & 1))
return 1;
if (i + 1 >= payload_count)
return 1;
if (payload[i + 1] == 0)
return 1;
return 0;
}
/*
@param flag Bitfield for control purposes.
bit0= use double 0 as delimiter
bit1= replace TAB resp. TAB TAB by text of previous tno
*/
static int pick_payload_text(unsigned char *payload, int payload_count,
int tno,
unsigned char **text_start, int *text_len,
int flag)
{
int i, skipped = 0, end_found = 0;
again:;
if (tno <= 0) {
*text_start = payload;
*text_len = 0;
for (i = 0; i < payload_count; i += 1 + (flag & 1)) {
end_found = is_payload_text_end(payload, payload_count,
i, flag & 1);
if (end_found) {
*text_len = i;
break;
}
}
return 1;
}
*text_start = NULL;
*text_len = 0;
for (i = 0; i < payload_count; i += 1 + (flag & 1)) {
end_found = is_payload_text_end(payload, payload_count,
i, flag & 1);
if (end_found) {
skipped++;
if (skipped == tno) {
*text_start = payload + (i + 1 + (flag & 1));
} else if (skipped == tno + 1) {
*text_len = i - (*text_start - payload);
goto found;
}
}
}
if (*text_start == NULL)
return 0;
*text_len = payload_count - (*text_start - payload);
found:;
if (flag & 2) {
/* If TAB resp. TAB TAB, then look back */
if (flag & 1) {
if (*text_len == 2) {
if ((*text_start)[0] == '\t' &&
(*text_start)[1] == '\t') {
skipped = 0;
tno--;
goto again;
}
}
} else if (*text_len == 1) {
if ((*text_start)[0] == '\t') {
skipped = 0;
tno--;
goto again;
}
}
}
return 1;
}
static int write_v07t_textline(unsigned char *text_packs, int num_packs,
int pack_type, int block,
int tno, int first_tno, char *spec,
char **respt, int *result_len, int flag)
{
unsigned char *payload = NULL, *text_start;
int ret, payload_count = 0, text_len, tab_flag = 0;
char msg[80];
if ((pack_type >= 0x80 && pack_type <= 0x85) || pack_type == 0x8e)
tab_flag = 2;
ret = collect_payload(text_packs, num_packs, pack_type, block,
&payload, &payload_count, 0);
if(ret > 0) {
ret = pick_payload_text(payload, payload_count, tno,
&text_start, &text_len,
(ret == 2) | tab_flag);
if (ret > 0) {
if (tno > 0 && strcmp(spec, "ISRC") == 0)
sprintf(msg, "%s %-2.2d",
spec, tno + first_tno - 1);
else if (tno > 0)
sprintf(msg, "Track %-2.2d %s",
tno + first_tno - 1, spec);
else
strcpy(msg, spec);
write_v07t_line(respt, msg,
(char *) text_start, text_len,
result_len, flag & 1);
ret = 1;
}
}
BURN_FREE_MEM(payload);
return ret;
}
static int report_track(unsigned char *text_packs, int num_packs,
int block, int tno, int first_tno,
char **respt, int *result_len, int flag)
{
int ret, i;
static char *track_specs[6] = {
"Title", "Artist", "Songwriter", "Composer",
"Arranger", "Message"
};
for (i = 0; i < 6; i++) {
ret = write_v07t_textline(text_packs, num_packs, 0x80 + i,
block, tno, first_tno,
track_specs[i], respt, result_len,
flag & 1);
if (ret < 0)
return -1;
}
ret = write_v07t_textline(text_packs, num_packs, 0x8e, block,
tno, first_tno,
"ISRC", respt, result_len, flag & 1);
if (ret < 0)
return -1;
return 1;
}
/*
@param flag Bitfield for control purposes.
bit0= Do not store text in result but only determine
the minimum size for the result array.
It is permissible to submit result == NULL.
Submit the already occupied size as result_size.
@return > 0 tells the number of valid text bytes in result resp.
with flag bit0 the prediction of that number.
This does not include the trailing 0-byte.
= 0 indicates that the block is not present
< 0 indicates failure.
*/
static int report_block(unsigned char *text_packs, int num_packs,
int block, int first_tno, int last_tno, int char_code,
char *result, int result_size, int flag)
{
char *respt = NULL;
unsigned char *pack, *payload = NULL;
int result_len = 0, pack_no, ret, i, lang, payload_count = 0, genre;
char msg[80];
static char *languages[] = {
BURN_CDTEXT_LANGUAGES_0X00,
BURN_CDTEXT_FILLER,
BURN_CDTEXT_LANGUAGES_0X45
};
static char *volume_specs[7] = {
"Album Title", "Artist Name", "Songwriter", "Composer",
"Arranger", "Album Message", "Catalog Number",
};
static char *genres[BURN_CDTEXT_NUM_GENRES] = {
BURN_CDTEXT_GENRE_LIST
};
/* Search for any pack of the block. But do not accept 0x8f as first.*/
ret = search_pack(text_packs, num_packs, 0, -1, block,
&pack, &pack_no, 0);
if (ret <= 0)
return 0;
if (pack[0] == 0x8f)
return 0;
if (flag & 1) {
result_len = result_size;
} else {
respt = result + result_size;
}
write_v07t_line(&respt, "Input Sheet Version", "0.7T", -1, &result_len,
flag & 1);
sprintf(msg, "Libburn report of CD-TEXT Block %d", block);
write_v07t_line(&respt, "Remarks ", msg, -1, &result_len,
flag & 1);
write_v07t_line(&respt, "Text Code ",
char_code == 0 ? "8859" : char_code == 0x01 ? "ASCII" : "MS-JIS",
-1, &result_len, flag & 1);
pack_no = 0;
for (i = 0; i < 3; i++) {
ret = search_pack(text_packs, num_packs, pack_no, 0x8f, -1,
&pack, &pack_no, 0);
if (ret <= 0) {
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
"No third CD-TEXT pack 0x8f found. No language code defined",
0, 0);
goto failure;
}
pack_no++;
}
lang = pack[8 + block];
if (lang > 127) {
sprintf(msg, "CD-TEXT with unknown language code %2.2x",
(unsigned int) lang);
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
msg, 0, 0);
goto failure;
}
write_v07t_line(&respt, "Language Code", languages[lang], -1,
&result_len, flag & 1);
for (i = 0; i < 7; i++) {
ret = write_v07t_textline(text_packs, num_packs, 0x80 + i,
block, 0, 0, volume_specs[i],
&respt, &result_len,
flag & 1);
if (ret < 0)
goto failure;
}
ret = collect_payload(text_packs, num_packs, 0x87, block,
&payload, &payload_count, 0);
if(ret > 0) {
genre = (payload[0] << 8) | payload[1];
if (genre < BURN_CDTEXT_NUM_GENRES)
strcpy(msg, genres[genre]);
else
sprintf(msg, "0x%-4.4x", (unsigned int) genre);
write_v07t_line(&respt, "Genre Code", msg,
-1, &result_len, flag & 1);
write_v07t_line(&respt, "Genre Information",
(char *) payload + 2,
-1, &result_len, flag & 1);
BURN_FREE_MEM(payload); payload = NULL;
}
ret = collect_payload(text_packs, num_packs, 0x8d, block,
&payload, &payload_count, 0);
if(ret > 0) {
write_v07t_line(&respt, "Closed Information", (char *) payload,
-1, &result_len, flag & 1);
BURN_FREE_MEM(payload); payload = NULL;
}
ret = write_v07t_textline(text_packs, num_packs, 0x8e, block, 0, 0,
"UPC / EAN", &respt, &result_len, flag & 1);
if (ret < 0)
goto failure;
ret = search_pack(text_packs, num_packs, 0, 0x8f, -1,
&pack, &pack_no, 0);
if (ret < 0)
goto failure;
if (pack[7] == 0x00)
strcpy(msg, "OFF");
else if (pack[7] == 0x03)
strcpy(msg, "ON");
else
sprintf(msg, "0x%2.2x", (unsigned int) pack[7]);
write_v07t_line(&respt, "Text Data Copy Protection", msg,
-1, &result_len, flag & 1);
sprintf(msg, "%d", first_tno);
write_v07t_line(&respt, "First Track Number", msg,
-1, &result_len, flag & 1);
sprintf(msg, "%d", last_tno);
write_v07t_line(&respt, "Last Track Number", msg,
-1, &result_len, flag & 1);
for (i = 0; i < last_tno - first_tno + 1; i++) {
ret = report_track(text_packs, num_packs, block,
i + 1, first_tno,
&respt, &result_len, flag & 1);
if (ret < 0)
goto failure;
}
if (flag & 1)
return result_len;
return respt - result;
failure:;
BURN_FREE_MEM(payload);
return -1;
}
/*
@param result A byte buffer of sufficient size.
It will be filled by the text for the v07t sheet file
plus a trailing 0-byte. (Be aware that double-byte
characters might contain 0-bytes, too.)
@param result_size The number of bytes in result.
To be determined by a run with flag bit0 set.
@param flag Bitfield for control purposes.
bit0= Do not store text in result but only determine
the minimum size for the result array.
It is permissible to submit result == NULL and
result_size == 0.
@return > 0 tells the number of valid text bytes in result resp.
with flag bit0 the prediction of that number.
This does not include the trailing 0-byte.
<= 0 indicates failure.
*/
static int burn_make_v07t(unsigned char *text_packs, int num_packs,
int first_tno, int track_count,
char *result, int result_size,
int *char_code, int flag)
{
int pack_no = 0, ret, block, last_tno = 0;
unsigned char *pack;
char msg[80];
/* >>> ??? Verify checksums ? */;
/* Check character code, reject unknown ones */
ret = search_pack(text_packs, num_packs, 0, 0x8f, -1,
&pack, &pack_no, 0);
if (ret <= 0) {
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
"No CD-TEXT pack 0x8f found. No character code defined",
0, 0);
return 0;
}
*char_code = pack[4];
if (*char_code != 0x00 && *char_code != 0x01 && *char_code != 0x80) {
sprintf(msg, "CD-TEXT with unknown character code %2.2x",
(unsigned int) *char_code);
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
msg, 0, 0);
return 0;
}
/* Obtain first_tno and last_tno from type 0x8f if present. */
if (first_tno <= 0) {
if (pack[5] > 0 && pack[5] + pack[6] < 100 &&
pack[5] <= pack[6]) {
first_tno = pack[5];
last_tno = pack[6];
} else {
sprintf(msg,
"CD-TEXT with illegal track range %d to %d",
(int) pack[5], (int) pack[6]);
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE, LIBDAX_MSGS_PRIO_HIGH,
msg, 0, 0);
return 0;
}
}
if (last_tno <= 0) {
if (track_count > 0) {
last_tno = first_tno + track_count - 1;
} else {
last_tno = 99;
}
}
/* Report content */
result_size = 0;
for (block = 0; block < 8; block++) {
/* Obtain character code, reject unknown ones */
ret = search_pack(text_packs, num_packs, 0, 0x8f, block,
&pack, &pack_no, 0);
if (ret > 0)
*char_code = pack[4];
if (*char_code != 0x00 && *char_code != 0x01 &&
*char_code != 0x80) {
sprintf(msg,
"CD-TEXT block %d with unknown character code %2.2x",
block, (unsigned int) *char_code);
libdax_msgs_submit(libdax_messenger, -1, 0x0002019f,
LIBDAX_MSGS_SEV_FAILURE,
LIBDAX_MSGS_PRIO_HIGH, msg, 0, 0);
return 0;
}
ret = report_block(text_packs, num_packs, block,
first_tno, last_tno, *char_code,
result, result_size, flag & 1);
if (ret < 0)
return ret;
if (ret == 0)
continue;
result_size = ret;
}
return result_size;
}
/* Convert an array of CD-TEXT packs into the text format of
Sony CD-TEXT Input Sheet Version 0.7T .
@param text_packs Array of bytes which form CD-TEXT packs of 18 bytes
each. For a description of the format of the array,
see file doc/cdtext.txt.
No header of 4 bytes must be prepended which would
tell the number of pack bytes + 2.
This parameter may be NULL if the currently attached
array of packs shall be removed.
@param num_packs The number of 18 byte packs in text_packs.
@param start_tno The start number of track counting, if known from
CD table-of-content or orther sources.
Submit 0 to enable the attempt to read it and the
track_count from pack type 0x8f.
@param track_count The number of tracks, if known from CD table-of-content
or orther sources.
@param result Will return the buffer with Sheet text.
Dispose by free() when no longer needed.
It will be filled by the text for the v07t sheet file
plus a trailing 0-byte. (Be aware that double-byte
characters might contain 0-bytes, too.)
Each CD-TEXT language block starts by the line
"Input Sheet Version = 0.7T"
and a "Remarks" line that tells the block number.
@param char_code Returns the character code of the pack array:
0x00 = ISO-8859-1
0x01 = 7 bit ASCII
0x80 = MS-JIS (japanese Kanji, double byte characters)
The presence of a code value that is not in this list
will cause this function to fail.
@param flag Bitfield for control purposes. Unused yet. Submit 0.
@return > 0 tells the number of valid text bytes in result.
This does not include the trailing 0-byte.
<= 0 indicates failure.
*/
int burn_make_input_sheet_v07t(unsigned char *text_packs, int num_packs,
int start_tno, int track_count,
char **result, int *char_code, int flag)
{
int ret, result_size = 0;
ret = burn_make_v07t(text_packs, num_packs, start_tno, track_count,
NULL, 0, char_code, 1);
if (ret <= 0)
return ret;
result_size = ret + 1;
*result = burn_alloc_mem(result_size, 1, 0);
if (*result == NULL)
return -1;
ret = burn_make_v07t(text_packs, num_packs, start_tno, track_count,
*result, result_size, char_code, 0);
if (ret <= 0) {
free(*result);
return ret;
}
return result_size - 1;
}
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