242 lines
6.9 KiB
Perl
Executable File
242 lines
6.9 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# Copyright 2002 by Heiko Eißfeldt (Eissfeldt)
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use strict;
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use integer;
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# read all .inf files and generate the binary cdtext block
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# for cdrecord.
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my @results;
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sub fill_packet
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{
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my $ID = shift;
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my $track = shift;
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my $seq_nr = shift;
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my $charpos = shift;
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my $text = shift;
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my $todo = shift;
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return if (!defined($$text));
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my @packet = ();
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push @packet, chr($ID); # track title, performer, ...
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push @packet, chr($$track);
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push @packet, chr($$seq_nr);
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$$charpos = 15 if ($$charpos > 15);
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push @packet, chr($$charpos);
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my $cp = 0;
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my $tracks_inp = 0;
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while (length($$text) + 1 < 12 - $cp) {
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push @packet, split(//, $$text);
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push @packet, chr(0);
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$cp += length($$text) + 1;
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$$charpos = 0;
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$tracks_inp++;
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$$text = shift @$todo;
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if ($#$todo < 1 && (!defined($$text) || $$text eq "") ) {
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push @packet, (chr(0)) x (12 - $cp);
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$$seq_nr++;
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print_packet(@packet);
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return;
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}
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$$text = "" if (!defined($$text));
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$$track++;
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}
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# packet gets full
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my $left = 12 - $cp;
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if ($left > length($$text)) {
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# title fits into packet
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push @packet, split(//, $$text);
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push @packet, chr(0);
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$tracks_inp++;
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print_packet(@packet);
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$$charpos = 0;
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$$text = shift @$todo;
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unless ((!defined($$text) || $$text eq "") && $#$todo < 1) { $$track++; }
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$$seq_nr++;
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} else {
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# print current packet and more if more entries are present
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push @packet, split(//, substr($$text, 0, $left));
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print_packet(@packet);
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$$text = substr($$text, $left);
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$$charpos += $left;
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$$seq_nr++;
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}
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}
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my @crctab =(
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0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
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0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
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0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
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0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
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0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
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0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
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0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
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0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
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0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
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0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
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0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
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0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
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0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
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0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
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0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
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0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
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0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
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0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
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0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
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0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
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0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
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0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
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0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
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0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
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0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
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0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
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0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
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0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
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0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
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0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
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0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
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0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
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);
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sub add_crc
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{
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# crc with polynomial: x^16 + x^12 + x^5 + 1
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# 1,0001,0000,0010,0001
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my $packref = shift;
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my $crc = 0;
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foreach (@$packref) {
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$crc = ($crc << 8) ^ $crctab[
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( ($crc >> (16-8)) ^ ord($_) ) & 0xff
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];
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$crc &= 0xffff;
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}
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$$packref[16] = chr((($crc >> 8) & 0xff) ^ 0xff);
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$$packref[17] = chr(($crc & 0xff) ^ 0xff);
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}
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sub print_packet
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{
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return if ($#_ < 1);
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my @packet = (@_);
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add_crc(\@packet);
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if ($packet[0] ne chr(0x8f)) {
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printf STDERR ("%02x "x4 ." "."%c "x12 ." "."%02x "x2), map( defined($_) ? ord($_) : "___undef", @packet );
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} else {
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printf STDERR ("%02x "x4 ." "."%02x "x12 ." "."%02x "x2), map( defined($_) ? ord($_) : "___undef", @packet );
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}
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printf STDERR "\n";
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push @results, @packet;
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}
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my $defaultperformer = $ARGV[0] || die "usage: ", $^X, " defaultperformer_name\n";
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my $prefix = $ARGV[1] || "audio";
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@ARGV = glob("${prefix}_??.inf");
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my @albumtitles;
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my @tracktitles;
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my @performers;
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my $ISRC;
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my @ISRCs;
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my $MCN;
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my $performer;
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while (<>) {
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if (/^Performer=\s+'(.*?)'$/) {
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$performer = $1;
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}
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if (/^Albumtitle=\s+'(.*?)'$/) {
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push @albumtitles, $1;
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}
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if (/^Tracktitle=\s+'(.*?)'$/) {
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push @tracktitles, $1;
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}
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if (/^ISRC=\s+(\S+?)$/) {
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$ISRC = $1;
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}
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if (/^MCN=\s+(\S+?)$/) {
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$MCN = $1;
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}
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if (eof) {
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close ARGV;
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$performer = $defaultperformer if (!defined($performer));
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push @performers, $performer;
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$performer = undef;
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push @ISRCs, $ISRC;
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$ISRC = undef;
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}
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}
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#
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my $seq_nr = 0;
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my @todo;
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my $text;
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my $track;
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my $charpos;
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# build cdtext packets
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# build track titles
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@todo = ($albumtitles[0], @tracktitles);
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$text = shift @todo;
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$track = 0;
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$charpos = 0;
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while ($#todo > 1 || defined($text)) {
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fill_packet(0x80, \$track, \$seq_nr, \$charpos, \$text, \@todo);
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}
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my $trackpacks = $seq_nr; # store for later reference
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my $last_track = $track;
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# build performer entries
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#@todo = ($performer) x (1 + scalar(@tracktitles));
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@todo = ($defaultperformer, @performers);
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$text = shift @todo;
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$track = 0;
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$charpos = 0;
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while ($#todo > 1 || defined($text)) {
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fill_packet(0x81, \$track, \$seq_nr, \$charpos, \$text, \@todo);
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}
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my $perfpacks = $seq_nr - $trackpacks; # store for later reference
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# build ISRC entries
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@todo = ($MCN, @ISRCs);
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$text = shift @todo;
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$track = 0;
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$charpos = 0;
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while ($#todo > 1 || defined($text)) {
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$text = "" if (!defined($text));
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fill_packet(0x8e, \$track, \$seq_nr, \$charpos, \$text, \@todo);
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}
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my $isrcpacks = $seq_nr - $trackpacks - $perfpacks; # store for later reference
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# build size information blocks
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my $size1 = chr(0) . chr(1) . chr($last_track) . chr(0)
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. chr($trackpacks) . chr($perfpacks) . chr(0) x 5;
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my $size2 = chr(0) x 6 . chr($isrcpacks) . chr(3) . chr($seq_nr+2) . chr(0) x 2;
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my $size3 = chr(0) x 4 . chr(9); # hard coded language 09 = english
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@todo = ($size1, $size2, $size3);
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$text = shift @todo;
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$track = 0;
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$charpos = 0;
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while ((defined($text) && $text ne "") ) {
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fill_packet(0x8f, \$track, \$seq_nr, \$charpos, \$text, \@todo);
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}
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# write out the results
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my $size = @results + 2;
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print chr($size >> 8), chr($size & 0xff), chr(0), chr(0), @results;
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