From 9fee0ec4ca0c5b7a334cc29dbb58e76c7a4c736e Mon Sep 17 00:00:00 2001 From: Michiel Van Der Kolk Date: Mon, 11 Jul 2005 15:42:37 +0000 Subject: Songdb java version, source. only 1.5 compatible git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7101 a1c6a512-1295-4272-9138-f99709370657 --- songdbj/net/shredzone/ifish/ltr/LTRmp3.java | 165 ++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 songdbj/net/shredzone/ifish/ltr/LTRmp3.java (limited to 'songdbj/net/shredzone/ifish/ltr/LTRmp3.java') diff --git a/songdbj/net/shredzone/ifish/ltr/LTRmp3.java b/songdbj/net/shredzone/ifish/ltr/LTRmp3.java new file mode 100644 index 0000000000..1b31c405ba --- /dev/null +++ b/songdbj/net/shredzone/ifish/ltr/LTRmp3.java @@ -0,0 +1,165 @@ +/* + * iFish -- An iRiver iHP jukebox database creation tool + * + * Copyright (c) 2004 Richard "Shred" Körber + * http://www.shredzone.net/go/ifish + * + *----------------------------------------------------------------------- + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is IFISH. + * + * The Initial Developer of the Original Code is + * Richard "Shred" Körber. + * Portions created by the Initial Developer are Copyright (C) 2004 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** + */ + +package net.shredzone.ifish.ltr; + +import java.io.*; + +/** + * The Base Class for mp3 decoding of the Lightweight Tag Reader. + * + * @author Richard Körber <dev@shredzone.de> + * @version $Id$ + */ +public abstract class LTRmp3 extends LTR { + + private final static String[] genres = { + //--- Genres as specified in ID3v1 --- + "Blues", "Classic Rock", "Country", "Dance", "Disco", "Funk", + "Grunge", "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies", "Other", + "Pop", "R&B", "Rap", "Reggae", "Rock", "Techno", "Industrial", + "Alternative", "Ska", "Death Metal", "Pranks", "Soundtrack", + "Euro-Techno", "Ambient", "Trip-Hop", "Vocal", "Jazz+Funk", + "Fusion", "Trance", "Classical", "Instrumental", "Acid", "House", + "Game", "Sound Clip", "Gospel", "Noise", "AlternRock", "Bass", + "Soul", "Punk", "Space", "Meditative", "Instrumental Pop", + "Instrumental Rock", "Ethnic", "Gothic", "Darkwave", + "Techno-Industrial", "Electronic", "Pop-Folk", "Eurodance", "Dream", + "Southern Rock", "Comedy", "Cult", "Gangsta", "Top 40", + "Christian Rap", "Pop/Funk", "Jungle", "Native American", "Cabaret", + "New Wave", "Psychadelic", "Rave", "Showtunes", "Trailer", "Lo-Fi", + "Tribal", "Acid Punk", "Acid Jazz", "Polka", "Retro", "Musical", + "Rock & Roll", "Hard Rock", + + //--- This are WinAmp extensions --- + "Folk", "Folk-Rock", "National Folk", "Swing", "Fast Fusion", "Bebop", + "Latin", "Revival", "Celtic", "Bluegrass", "Avantgarde", "Gothic Rock", + "Progressive Rock", "Psychedelic Rock", "Symphonic Rock", "Slow Rock", + "Big Band", "Chorus", "Easy Listening", "Acoustic", "Humour", "Speech", + "Chanson", "Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass", + "Primus", "Porn Groove", "Satire", "Slow Jam", "Club", "Tango", "Samba", + "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul", "Freestyle", + "Duet", "Punk Rock", "Drum Solo", "A capella", "Euro-House", "Dance Hall", + }; + + protected final String charsetV1 = "ISO-8859-1"; + protected final String charsetV2 = "ISO-8859-1"; + + /** + * Constructor for the LTRmp3 object + * + * @param in File to be used + * @throws FormatDecodeException Could not decode file + */ + public LTRmp3( RandomAccessFile in ) + throws FormatDecodeException { + super( in ); + } + + /** + * Decode the mp3 numerical Genre code and convert it to a human + * readable string. The genre is decoded according to the + * specifications found at www.id3.org, + * as well as the WinAmp extensions. + * + * @param id Genre ID + * @return ID String, null if the genre ID was unknown + */ + protected String decodeGenre( int id ) { + if( id>=genres.length ) return null; + return genres[id]; + } + + /** + * Read an ID3v2 integer. This is a 4 byte big endian value, which is + * always not syncsafe. + * + * @return The integer read. + * @throws IOException If there were not enough bytes in the file. + */ + protected int readInt() + throws IOException { + int val = 0; + for( int cnt = 4; cnt > 0; cnt-- ) { + val <<= 8; + val |= ( in.readByte() & 0xFF ); + } + return val; + } + + /** + * Read an ID3v2 syncsafe integer. This is a 4 byte big endian value + * with the bit 7 of each byte always being 0. + * + * @return The syncsafe integer read. + * @throws IOException If there were not enough bytes in the file. + */ + protected int readSyncsafeInt() + throws IOException { + int val = 0; + for( int cnt = 4; cnt > 0; cnt-- ) { + val <<= 7; + val |= ( readSyncsafe() & 0x7F ); + } + return val; + } + + /** + * Read a syncsafe byte. It is made sure that a byte is available in + * the file, and that bit 7 is 0. An IOException is thrown otherwise. + * + * @return The byte read. + * @throws IOException If premature EOF was reached or byte was not + * syncsafe. + */ + protected byte readSyncsafe() + throws IOException { + byte read = in.readByte(); + if(( read & 0x80 ) != 0 ) { + throw new IOException( "not syncsafe" ); + } + return read; + } + +} -- cgit v1.2.3