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/*
* mp3tag.c -- MP3 TAG Editor.
*
* Copyright (C) 1998 Marcin Baranowski (minek@kis.p.lodz.pl).
* [ send comments and bug reports to minek@kis.p.lodz.pl]
*
* This is very ALPHA code (may be unstable in some cases)
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "mp3tag.h"
const Genre genre[116] =
{
{ "Acid", 0x22 },
{ "Acid Jazz", 0x4A },
{ "Acid Punk", 0x49 },
{ "Acoustic", 0x63 },
{ "Alternative", 0x14 },
{ "Alt. Rock", 0x28 },
{ "Ambient", 0x1A },
{ "Avantgarde", 0x5A },
{ "Bass", 0x29 },
{ "Bebob", 0x55 },
{ "Big Band", 0x60 },
{ "Bluegrass", 0x59 },
{ "Blues", 0x00 },
{ "Booty Bass", 0x6B },
{ "Cabaret", 0x41 },
{ "Celtic", 0x58 },
{ "Chamber Music", 0x68 },
{ "Chanson", 0x66 },
{ "Chorus", 0x61 },
{ "Christian Rap", 0x3D },
{ "Classical", 0x20 },
{ "Classic Rock", 0x01 },
{ "Club", 0x70 },
{ "Comedy", 0x39 },
{ "Country", 0x02 },
{ "Cult", 0x3A },
{ "Darkwave", 0x32 },
{ "Dance", 0x03 },
{ "Death Metal", 0x16 },
{ "Disco", 0x04 },
{ "Dream", 0x37 },
{ "Easy Listening", 0x62 },
{ "Electronic", 0x34 },
{ "Ethnic", 0x30 },
{ "Eurodance", 0x36 },
{ "Euro-Techno", 0x19 },
{ "Fast-Fusion", 0x54 },
{ "Folk", 0x50 },
{ "Folk/Rock", 0x51 },
{ "Folklore", 0x73 },
{ "Funk", 0x05 },
{ "Fusion", 0x1E },
{ "Game", 0x24 },
{ "Gangsta", 0x3B },
{ "Gothic", 0x31 },
{ "Gothic Rock", 0x5B },
{ "Gospel", 0x26 },
{ "Grunge", 0x06 },
{ "Hard Rock", 0x4F },
{ "Hip-Hop", 0x07 },
{ "House", 0x23 },
{ "Humour", 0x64 },
{ "Industrial", 0x13 },
{ "Instrumental", 0x21 },
{ "Instrumental Pop", 0x2E },
{ "Instrumental Rock",0x2F },
{ "Jazz", 0x08 },
{ "Jazz+Funk", 0x1D },
{ "Jungle", 0x3F },
{ "Latin", 0x56 },
{ "Lo-Fi", 0x47 },
{ "Meditative", 0x2D },
{ "Metal", 0x09 },
{ "Musical", 0x4D },
{ "National Folk", 0x52 },
{ "Native American", 0x40 },
{ "New Age", 0x0A },
{ "New Wave", 0x42 },
{ "Noise", 0x27 },
{ "Oldies", 0x0B },
{ "Opera", 0x67 },
{ "Other", 0x0C },
{ "Polka", 0x4B },
{ "Pop", 0x0D },
{ "Pop/Funk", 0x3E },
{ "Pop-Folk", 0x35 },
{ "Porn Groove", 0x6D },
{ "Primus", 0x6C },
{ "Progressive Rock", 0x5C },
{ "Punk", 0x2B },
{ "Pranks", 0x17 },
{ "Psychadelic", 0x43 },
{ "Psychedelic Rock", 0x5D },
{ "Rap", 0x0F },
{ "Rave", 0x44 },
{ "Reggae", 0x10 },
{ "Revival", 0x57 },
{ "Retro", 0x4C },
{ "Rock", 0x11 },
{ "Rock & Roll", 0x4E },
{ "R&B", 0x0E },
{ "Samba", 0x72 },
{ "Satire", 0x6E },
{ "Showtunes", 0x45 },
{ "Ska", 0x15 },
{ "Slow Jam", 0x6F },
{ "Slow Rock", 0x5F },
{ "Sonata", 0x69 },
{ "Soul", 0x2A },
{ "Soundtrack", 0x18 },
{ "Sound Clip", 0x25 },
{ "Southern Rock", 0x38 },
{ "Space", 0x2C },
{ "Speech", 0x65 },
{ "Swing", 0x53 },
{ "Symphony", 0x6A },
{ "Symphonic Rock", 0x5E },
{ "Tango", 0x71 },
{ "Techno", 0x12 },
{ "Techno-Industrial",0x33 },
{ "Top 40", 0x3C },
{ "Trailer", 0x46 },
{ "Tribal", 0x48 },
{ "Trance", 0x1F },
{ "Trip-Hop", 0x1B },
{ "Vocal", 0x1C }
};
void trimTrailingSpaces(char *string, int length)
{
int i;
for (i = length-1; (string[i] == ' ') && (i >= 0); i--);
string[i+1] = '\0';
}
char checktag(FILE *mp3file)
{
char tag[3];
fseek( mp3file, -128, SEEK_END );
fscanf( mp3file, "%3s", tag );
if ( strcmp( tag, TAG ) )
return 0;
return 1;
}
int readtag(FILE *mp3file, mp3Tag *mp3tag)
{
if ( ! checktag(mp3file) )
return -1;
fscanf( mp3file, "%30c", mp3tag->title );
fscanf( mp3file, "%30c", mp3tag->artist );
fscanf( mp3file, "%30c", mp3tag->albumn );
fscanf( mp3file, "%4c", mp3tag->year );
fscanf( mp3file, "%30c", mp3tag->comment );
fscanf( mp3file, "%c", &mp3tag->genre );
trimTrailingSpaces(mp3tag->title, 30);
trimTrailingSpaces(mp3tag->artist, 30);
trimTrailingSpaces(mp3tag->albumn, 30);
trimTrailingSpaces(mp3tag->year, 4);
trimTrailingSpaces(mp3tag->comment, 30);
return(0);
}
void writetag_frag(FILE *mp3file, const char *tag, char count )
{
short i; //, *buf;
for ( i = 0; i < count; i++ )
fputc( tag[i] ? tag[i] : 0x21, mp3file );
}
void savetag(FILE *mp3file, mp3Tag mp3tag)
{
if ( checktag(mp3file) )
fseek( mp3file, -128, SEEK_END );
else
fseek( mp3file, 0, SEEK_END );
writetag_frag(mp3file, TAG, 3 );
writetag_frag(mp3file, mp3tag.title, 30 );
writetag_frag(mp3file, mp3tag.artist, 30 );
writetag_frag(mp3file, mp3tag.albumn, 30 );
writetag_frag(mp3file, mp3tag.year, 4 );
writetag_frag(mp3file, mp3tag.comment, 30 );
writetag_frag(mp3file, &mp3tag.genre, 1 );
}
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