Examples of org.farng.mp3.id3.ID3v1

org.farng.mp3.id3.FrameBodyTCOM

What is ID3 (v1)?

The audio format MPEG layer I, layer II and layer III (MP3) has no native way of saving information about the contents, except for some simple yes/no parameters like "private", "copyrighted" and "original home" (meaning this is the original file and not a copy). A solution to this problem was introduced with the program "Studio3" by Eric Kemp alias NamkraD in 1996. By adding a small chunk of extra data in the end of the file one could get the MP3 file to carry information about the audio and not just the audio itself.

The placement of the tag, as the data was called, was probably chosen as there were little chance that it should disturb decoders. In order to make it easy to detect a fixed size of 128 bytes was chosen. The tag has the following layout (as hinted by the scheme to the right):

Song title	30 characters
Artist	30 characters
Album	30 characters
Year	4 characters
Comment	30 characters
Genre	1 byte

If you one sum the the size of all these fields we see that 30+30+30+4+30+1 equals 125 bytes and not 128 bytes. The missing three bytes can be found at the very end of the tag, before the song title. These three bytes are always "TAG" and is the identification that this is indeed a ID3 tag. The easiest way to find a ID3v1/1.1 tag is to look for the word "TAG" 128 bytes from the end of a file.

As all artists doesn't have a 30 character name it is said that if there is some bytes left after the information is entered in the field, those bytes should be fille with the binary value 0. You might also think that you cannot write that much in the genre field, being one byte big, but it is more clever than that. The byte value you enter in the genre field corresponds to a value in a predefined list. The list that Eric Kemp created had 80 entries, ranging from 0 to 79.

@author Eric Farng @version $Revision: 1.6 $

        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyCOMM((byte) 0, "ENG", "", testString));
        id3v1.setComment(testString);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {

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        ((FrameBodyTDRC) mp3file.getFilenameTag().getFrame("TDRC").getBody()).getText().equals("2003");
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodyCOMM();
        ((FrameBodyCOMM) frameBody).setText(testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getComment().equals(testString);
        ((FrameBodyCOMM) ((ID3v2_4Frame) mp3file.getID3v2Tag().getFrameOfType("COMM").next()).getBody()).getText()

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        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodySYLT((byte) 0, "ENG", (byte) 0, (byte) 0, "description"));
        ((FrameBodySYLT) frame.getBody()).addLyric(0, testString);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {

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        ((FrameBodyTRCK) mp3file.getFilenameTag().getFrame("TRCK").getBody()).getText().equals("42");
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodySYLT();
        ((FrameBodySYLT) frameBody).addLyric(0, testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        assertEquals(0, (new ID3v2_4(mp3file.getID3v1Tag())).getFrameCount());
        ((FrameBodySYLT) mp3file.getID3v2Tag().getFrame("SYLT").getBody()).getLyric().equals(testString);

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        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTALB((byte) 0, testString));
        id3v1.setAlbum(testString);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {

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        // test nulls;
        assertEquals(0, mp3.getUnsynchronizedFragments().size());


        // test equals
        body = new FrameBodyTALB((byte) 0, albumTitle);
        frame = new ID3v2_4Frame(body);
        id3v2.setFrame(frame);
        assertEquals(0, mp3.getUnsynchronizedFragments().size());
        lyrics3.setField(new Lyrics3v2Field(frame));
        assertEquals(0, mp3.getUnsynchronizedFragments().size());

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        id3v1.setAlbum(albumTitle);


        // setup id3v2
        AbstractID3v2Frame frame;
        AbstractID3v2FrameBody frameBody;
        frameBody = new FrameBodyTALB((byte) 0, albumTitle);
        frame = new ID3v2_4Frame(frameBody);
        id3v2.setFrame(frame);


        // setup lyrics3v2
        Lyrics3v2Field field;
        AbstractLyrics3v2FieldBody fieldBody;
        fieldBody = new FieldBodyEAL(albumTitle);
        field = new Lyrics3v2Field(fieldBody);
        lyrics3.setField(field);


        // setup filename tag
        frameBody = new FrameBodyTALB((byte) 0, albumTitle);
        frame = new ID3v2_4Frame(frameBody);
        filenameId3.setFrame(frame);
        TagOptionSingleton.getInstance().setFilenameTagSave(true);


        // nulls

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    public void testSetFrameAcrossTags() throws Exception {
        MP3File mp3file = new MP3File();
        String testString = "Test String";
        AbstractID3v2Frame frame;
        AbstractID3v2FrameBody frameBody;
        frameBody = new FrameBodyTALB((byte) 0, testString);
        frame = new ID3v2_4Frame(frameBody);


        // nulls
        mp3file.setFrameAcrossTags(null);
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        assertNull(mp3file.getID3v2Tag());
        assertNull(mp3file.getLyrics3Tag());
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        assertNull(mp3file.getID3v2Tag());
        assertNull(mp3file.getLyrics3Tag());
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        assertNull(mp3file.getLyrics3Tag());
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        assertNull(mp3file.getID3v2Tag());
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        assertNull(mp3file.getID3v2Tag());
        assertNull(mp3file.getLyrics3Tag());
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        assertNull(mp3file.getLyrics3Tag());
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        assertNull(mp3file.getID3v2Tag());
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        assertNull(mp3file.getID3v2Tag());
        assertNull(mp3file.getLyrics3Tag());
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        assertNull(mp3file.getLyrics3Tag());
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        assertNull(mp3file.getID3v2Tag());
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(null);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        assertNull(mp3file.getFilenameTag());
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        assertNull(mp3file.getLyrics3Tag());
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        assertNull(mp3file.getID3v2Tag());
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        mp3file.setFrameAcrossTags(frame);
        assertNull(mp3file.getID3v1Tag());
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);
        ((FieldBodyEAL) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAL").getBody()).getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getFilenameTag().getFrame("TALB").getBody()).getText().equals(testString);


        // test all
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodyTIT2();
        ((FrameBodyTIT2) frameBody).setText(testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getTitle().equals(testString);
        ((FrameBodyTIT2) mp3file.getID3v2Tag().getFrame("TIT2").getBody()).getText().equals(testString);
        ((FieldBodyETT) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("ETT").getBody()).getTitle().equals(testString);
        ((FrameBodyTIT2) mp3file.getFilenameTag().getFrame("TIT2").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodyTPE1();
        ((FrameBodyTPE1) frameBody).setText(testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getArtist().equals(testString);
        ((FrameBodyTPE1) mp3file.getID3v2Tag().getFrame("TPE1").getBody()).getText().equals(testString);
        ((FieldBodyEAR) ((Lyrics3v2) mp3file.getLyrics3Tag()).getField("EAR").getBody()).getArtist().equals(testString);
        ((FrameBodyTPE1) mp3file.getFilenameTag().getFrame("TPE1").getBody()).getText().equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodyTALB();
        ((FrameBodyTALB) frameBody).setText(testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getAlbum().equals(testString);
        ((FrameBodyTALB) mp3file.getID3v2Tag().getFrame("TALB").getBody()).getText().equals(testString);

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        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTCOM((byte) 0, testString));
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {
            fail("This should not happen. " + ex.getMessage());

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                .equals(testString);
        mp3file.setID3v1Tag(new ID3v1_1());
        mp3file.setID3v2Tag(new ID3v2_4());
        mp3file.setLyrics3Tag(new Lyrics3v2());
        mp3file.setFilenameTag(FilenameTagBuilder.createEmptyFilenameTag());
        frameBody = new FrameBodyTCOM();
        ((FrameBodyTCOM) frameBody).setText(testString);
        frame.setBody(frameBody);
        mp3file.setFrameAcrossTags(frame);
        mp3file.getID3v1Tag().getComment().equals(testString);
        ((FrameBodyTCOM) mp3file.getID3v2Tag().getFrame("TCOM").getBody()).getText().equals(testString);

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Related Classes of org.farng.mp3.id3.ID3v1

com.jitcaforwin.id3.jid3lib.TagGenreTest

com.jitcaforwin.id3.jid3lib.TagTrackNumberTest

com.main.gui.JMP3Propriedades

junit.framework.TestSuite

net.nutch.parse.mp3.MP3Parser

org.apache.nutch.parse.mp3.MP3Parser

org.cmc.music.metadata.IMusicMetadata

org.cmc.music.myid3.MyID3

org.farng.mp3.AbstractMP3FragmentBody

org.farng.mp3.AbstractMP3Tag

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