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| Path : /usr/bin/ |
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| Current File : //usr/bin/inf2cdtext.pl |
#!/usr/bin/perl -w
# Copyright 2002 by Heiko Eißfeldt (Eissfeldt)
use strict;
use integer;
# read all .inf files and generate the binary cdtext block
# for cdrecord.
my @results;
sub fill_packet
{
my $ID = shift;
my $track = shift;
my $seq_nr = shift;
my $charpos = shift;
my $text = shift;
my $todo = shift;
return if (!defined($$text));
my @packet = ();
push @packet, chr($ID); # track title, performer, ...
push @packet, chr($$track);
push @packet, chr($$seq_nr);
$$charpos = 15 if ($$charpos > 15);
push @packet, chr($$charpos);
my $cp = 0;
my $tracks_inp = 0;
while (length($$text) + 1 < 12 - $cp) {
push @packet, split(//, $$text);
push @packet, chr(0);
$cp += length($$text) + 1;
$$charpos = 0;
$tracks_inp++;
$$text = shift @$todo;
if ($#$todo < 1 && (!defined($$text) || $$text eq "") ) {
push @packet, (chr(0)) x (12 - $cp);
$$seq_nr++;
print_packet(@packet);
return;
}
$$text = "" if (!defined($$text));
$$track++;
}
# packet gets full
my $left = 12 - $cp;
if ($left > length($$text)) {
# title fits into packet
push @packet, split(//, $$text);
push @packet, chr(0);
$tracks_inp++;
print_packet(@packet);
$$charpos = 0;
$$text = shift @$todo;
unless ((!defined($$text) || $$text eq "") && $#$todo < 1) { $$track++; }
$$seq_nr++;
} else {
# print current packet and more if more entries are present
push @packet, split(//, substr($$text, 0, $left));
print_packet(@packet);
$$text = substr($$text, $left);
$$charpos += $left;
$$seq_nr++;
}
}
my @crctab =(
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,
);
sub add_crc
{
# crc with polynomial: x^16 + x^12 + x^5 + 1
# 1,0001,0000,0010,0001
my $packref = shift;
my $crc = 0;
foreach (@$packref) {
$crc = ($crc << 8) ^ $crctab[
( ($crc >> (16-8)) ^ ord($_) ) & 0xff
];
$crc &= 0xffff;
}
$$packref[16] = chr((($crc >> 8) & 0xff) ^ 0xff);
$$packref[17] = chr(($crc & 0xff) ^ 0xff);
}
sub print_packet
{
return if ($#_ < 1);
my @packet = (@_);
add_crc(\@packet);
if ($packet[0] ne chr(0x8f)) {
printf STDERR ("%02x "x4 ." "."%c "x12 ." "."%02x "x2), map( defined($_) ? ord($_) : "___undef", @packet );
} else {
printf STDERR ("%02x "x4 ." "."%02x "x12 ." "."%02x "x2), map( defined($_) ? ord($_) : "___undef", @packet );
}
printf STDERR "\n";
push @results, @packet;
}
my $defaultperformer = $ARGV[0] || die "usage: ", $^X, " defaultperformer_name\n";
my $prefix = $ARGV[1] || "audio";
@ARGV = glob("${prefix}_??.inf");
my @albumtitles;
my @tracktitles;
my @performers;
my $ISRC;
my @ISRCs;
my $MCN;
my $performer;
while (<>) {
if (/^Performer=\s+'(.*?)'$/) {
$performer = $1;
}
if (/^Albumtitle=\s+'(.*?)'$/) {
push @albumtitles, $1;
}
if (/^Tracktitle=\s+'(.*?)'$/) {
push @tracktitles, $1;
}
if (/^ISRC=\s+(\S+?)$/) {
$ISRC = $1;
}
if (/^MCN=\s+(\S+?)$/) {
$MCN = $1;
}
if (eof) {
close ARGV;
$performer = $defaultperformer if (!defined($performer));
push @performers, $performer;
$performer = undef;
push @ISRCs, $ISRC;
$ISRC = undef;
}
}
#
my $seq_nr = 0;
my @todo;
my $text;
my $track;
my $charpos;
# build cdtext packets
# build track titles
@todo = ($albumtitles[0], @tracktitles);
$text = shift @todo;
$track = 0;
$charpos = 0;
while ($#todo > 1 || defined($text)) {
fill_packet(0x80, \$track, \$seq_nr, \$charpos, \$text, \@todo);
}
my $trackpacks = $seq_nr; # store for later reference
my $last_track = $track;
# build performer entries
#@todo = ($performer) x (1 + scalar(@tracktitles));
@todo = ($defaultperformer, @performers);
$text = shift @todo;
$track = 0;
$charpos = 0;
while ($#todo > 1 || defined($text)) {
fill_packet(0x81, \$track, \$seq_nr, \$charpos, \$text, \@todo);
}
my $perfpacks = $seq_nr - $trackpacks; # store for later reference
# build ISRC entries
@todo = ($MCN, @ISRCs);
$text = shift @todo;
$track = 0;
$charpos = 0;
while ($#todo > 1 || defined($text)) {
$text = "" if (!defined($text));
fill_packet(0x8e, \$track, \$seq_nr, \$charpos, \$text, \@todo);
}
my $isrcpacks = $seq_nr - $trackpacks - $perfpacks; # store for later reference
# build size information blocks
my $size1 = chr(0) . chr(1) . chr($last_track) . chr(0)
. chr($trackpacks) . chr($perfpacks) . chr(0) x 5;
my $size2 = chr(0) x 6 . chr($isrcpacks) . chr(3) . chr($seq_nr+2) . chr(0) x 2;
my $size3 = chr(0) x 4 . chr(9); # hard coded language 09 = english
@todo = ($size1, $size2, $size3);
$text = shift @todo;
$track = 0;
$charpos = 0;
while ((defined($text) && $text ne "") ) {
fill_packet(0x8f, \$track, \$seq_nr, \$charpos, \$text, \@todo);
}
# write out the results
my $size = @results + 2;
print chr($size >> 8), chr($size & 0xff), chr(0), chr(0), @results;
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