Examples of org.farng.mp3.id3.ID3v1

org.farng.mp3.id3.ID3v2_4Frame

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 $

    public List getFrameAcrossTags(final String identifier) {
        if (identifier != null && identifier.length() > 0) {
            final List list = new ArrayList(32);
            Iterator iterator;
            if (id3v1tag != null) {
                final ID3v2_4 id3v1 = new ID3v2_4(id3v1tag);
                if (id3v1.hasFrameOfType(identifier)) {
                    iterator = id3v1.getFrameOfType(identifier);
                    while (iterator.hasNext()) {
                        list.add(iterator.next());
                    }
                }
            }
            if (id3v2tag != null) {
                if (id3v2tag.hasFrameOfType(identifier)) {
                    iterator = id3v2tag.getFrameOfType(identifier);
                    while (iterator.hasNext()) {
                        list.add(iterator.next());
                    }
                }
            }
            if (lyrics3tag != null) {
                final ID3v2_4 lyrics3 = new ID3v2_4(lyrics3tag);
                if (lyrics3.hasFrameOfType(identifier)) {
                    iterator = lyrics3.getFrameOfType(identifier);
                    while (iterator.hasNext()) {
                        list.add(iterator.next());
                    }
                }
            }

View Full Code Here

     * and then used here.
     *
     * @param mp3tag Any MP3Tag object can be used and will be converted into a new ID3v2_4 object.
     */
    public void setID3v2Tag(final AbstractMP3Tag mp3tag) {
        id3v2tag = new ID3v2_4(mp3tag);
    }

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     * exists in two or more tags but is not equal across all of them.
     *
     * @return a HashSet of unsynchronized fragments
     */
    public Set getUnsynchronizedFragments() {
        final ID3v2_4 total = new ID3v2_4(id3v2tag);
        final Set set = new HashSet(32);
        total.append(id3v1tag);
        total.append(lyrics3tag);
        total.append(filenameTag);
        total.append(id3v2tag);
        final ID3v2_4 id3v1 = new ID3v2_4(id3v1tag);
        final ID3v2_4 lyrics3 = new ID3v2_4(lyrics3tag);
        final ID3v2_4 filename = new ID3v2_4(filenameTag);
        final AbstractID3v2 id3v2 = id3v2tag;
        final Iterator iterator = total.iterator();
        while (iterator.hasNext()) {
            final AbstractID3v2Frame frame = (AbstractID3v2Frame) iterator.next();
            final String identifier = frame.getIdentifier();
            if (id3v2 != null) {
                if (id3v2.hasFrame(identifier)) {
                    if (!id3v2.getFrame(identifier).isSubsetOf(frame)) {
                        set.add(identifier);
                    }
                }
            }
            if (id3v1.hasFrame(identifier)) {
                if (!id3v1.getFrame(identifier).isSubsetOf(frame)) {
                    set.add(identifier);
                }
            }
            if (lyrics3.hasFrame(identifier)) {
                if (!lyrics3.getFrame(identifier).isSubsetOf(frame)) {
                    set.add(identifier);
                }
            }
            if (filename.hasFrame(identifier)) {
                if (!filename.getFrame(identifier).isSubsetOf(frame)) {
                    set.add(identifier);
                }
            }
        }
        return set;

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            // adjustid3v2padding needs all handles on the file closed;
            rfile = new RandomAccessFile(file, "rw");
            if (TagOptionSingleton.getInstance().isId3v2Save()) {
                if (id3v2tag == null) {
                    if (saveMode == TagConstant.MP3_FILE_SAVE_OVERWRITE) {
                        (new ID3v2_4()).delete(rfile);
                    }
                } else {
                    if (saveMode == TagConstant.MP3_FILE_SAVE_WRITE) {
                        id3v2tag.write(rfile);
                    } else if (saveMode == TagConstant.MP3_FILE_SAVE_APPEND) {

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    public void testJohnMartinWCOP() throws Exception {
        setUp();
        File testFile = this.testMusicArray[0].getMp3file();
        MP3File mp3file = this.testMusicArray[0];
        ID3v2_4 tag = null;
        ID3v2_4Frame wcopFrame = null;
        FrameBodyWCOP wcopFrameBody = null;
        tag = new ID3v2_4(mp3file.getID3v2Tag());
        System.err.println("The tag is: " + tag);
        wcopFrame = new ID3v2_4Frame(tag.getFrame("WCOP"));
        wcopFrameBody = new FrameBodyWCOP("http://creativecommons.org");
        wcopFrameBody.setUrlLink("http://creativecommons.org");
        wcopFrame.setBody(wcopFrameBody);
        System.err.println("The wcop frame is: " + wcopFrame.toString());
        tag.setFrame(wcopFrame);
        mp3file.setID3v2Tag(tag);
        System.err.println("The WCOP frame contains: " + ((FrameBodyWCOP) wcopFrame.getBody()).getUrlLink());
        mp3file.save(testFile.toString(), TagConstant.MP3_FILE_SAVE_OVERWRITE);
        mp3file.save();
        mp3file = new MP3File(testFile);
        tag = new ID3v2_4(mp3file.getID3v2Tag());
        System.err.println("The tag is: " + tag);


        // run again
        wcopFrame = new ID3v2_4Frame(tag.getFrame("WCOP"));
        wcopFrameBody = new FrameBodyWCOP("http://creativecommons.org");
        wcopFrameBody.setUrlLink("http://creativecommons.org");
        wcopFrame.setBody(wcopFrameBody);
        System.err.println("The wcop frame is: " + wcopFrame.toString());
        tag.setFrame(wcopFrame);
        mp3file.setID3v2Tag(tag);
        System.err.println("The WCOP frame contains: " + ((FrameBodyWCOP) wcopFrame.getBody()).getUrlLink());
        mp3file.save(testFile.toString(), TagConstant.MP3_FILE_SAVE_OVERWRITE);
        mp3file.save();
        mp3file = new MP3File(testFile);
        tag = new ID3v2_4(mp3file.getID3v2Tag());
        System.err.println("The tag is: " + tag);

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                         this.testMusicMP3StartByteNew[i],
                         this.testMusicArray[i].getMp3StartByte());
        }
        MP3File mp3file = new MP3File(new File(this.testMusicDirectory, this.testMusic[1]));
        ID3v2_4 tag = new ID3v2_4();
        ID3v2_4Frame frame = new ID3v2_4Frame();
        FrameBodyTPE1 body = new FrameBodyTPE1((byte) 0, "text");


        //        // save and re-read this to set file/tag alter preservation tags to
        // correct
        //        // values;
        //        mp3file.save();
        //        mp3file = new MP3File(new File(testMusicDirectory, "Theme - Fat
        // Albert.mp3"));
        RandomAccessFile randomAccessFile;
        frame.setBody(body);
        tag.setFrame(frame);
        assertTrue(mp3file.adjustID3v2Padding(1, true, true));
        assertEquals(1, mp3file.getMp3StartByte());
        assertTrue(mp3file.adjustID3v2Padding(2, true, true));
        assertEquals(2, mp3file.getMp3StartByte());

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        // test all different fields
        List frameList;
        final String testString = "Test String";
        mp3file = new MP3File();
        frame = new ID3v2_4Frame(new FrameBodyTIT2((byte) 0, testString));
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        id3v1.setTitle(testString);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);


        // different nulls
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(0, frameList.size());
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(1, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(1, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(1, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(1, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(2, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(null);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(null);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(null);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }
        mp3file = new MP3File();
        mp3file.setID3v1Tag(null);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TEST each frame
        // TIT1
        mp3file = new MP3File();
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TIT2");
        assertEquals(4, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TPE1
        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTPE1((byte) 0, testString));
        id3v1.setArtist(testString);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TPE1");
        assertEquals(4, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TALB
        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) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TALB");
        assertEquals(4, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TDRC
        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTDRC((byte) 0, "1992"));
        id3v1.setYear("1992");
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
            fail("Somehow created a TDRC (year) Lyrics3v2 Field");
        } catch (TagException ex) {
            // correct behavior
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TDRC");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // COMM
        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) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("COMM");
        assertEquals(4, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TCON
        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTCON((byte) 0, "(42) Soul"));
        id3v1.setGenre((byte) 42);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
            fail("Somehow created a TCON (genre) Lyrics3v2 Field");
        } catch (TagException ex) {
            // correct behavior
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TCON");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TRCK
        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyTRCK((byte) 0, "42"));
        ((ID3v1_1) id3v1).setTrack((byte) 42);
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
            fail("Somehow created a TRCK (track) Lyrics3v2 Field");
        } catch (TagException ex) {
            // correct behavior
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("TRCK");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // SYLT
        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) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("SYLT");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // USLT
        mp3file = new MP3File();
        id3v1 = new ID3v1_1();
        id3v2 = new ID3v2_4();
        lyrics3 = new Lyrics3v2();
        filename = FilenameTagBuilder.createEmptyFilenameTag();
        frame = new ID3v2_4Frame(new FrameBodyUSLT((byte) 0, "ENG", "", testString));
        id3v2.setFrame(frame);
        try {
            ((Lyrics3v2) lyrics3).setField(new Lyrics3v2Field(frame));
        } catch (TagException ex) {
            fail("This should not happen. " + ex.getMessage());
        }
        filename.setFrame(frame);
        mp3file.setID3v1Tag(id3v1);
        mp3file.setID3v2Tag(id3v2);
        mp3file.setLyrics3Tag(lyrics3);
        mp3file.setFilenameTag(filename);
        frameList = mp3file.getFrameAcrossTags("USLT");
        assertEquals(3, frameList.size());
        for (int i = 0; i < frameList.size(); i++) {
            assertEquals(frame, frameList.get(i));
        }


        // TCOM
        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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        // 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());
        id3v1.setAlbum(albumTitle);
        assertEquals(0, mp3.getUnsynchronizedFragments().size());
        filename.setFrame(frame);
        assertEquals(0, mp3.getUnsynchronizedFragments().size());


        // test differences
        body = new FrameBodyTIT2((byte) 0, "<song title>");
        frame = new ID3v2_4Frame();
        frame.setBody(body);
        filename.setFrame(frame);
        assertEquals(0, mp3.getUnsynchronizedFragments().size());
        id3v1.setTitle("different");
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        id3v1.setTitle("<song title>");
        assertEquals(0, mp3.getUnsynchronizedFragments().size());
        lyrics3.setField(new Lyrics3v2Field(new FieldBodyETT("different")));
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        lyrics3.setField(new Lyrics3v2Field(new FieldBodyETT("<song title>")));
        assertEquals(0, mp3.getUnsynchronizedFragments().size());
        body = new FrameBodyTIT2((byte) 0, "different");
        frame = new ID3v2_4Frame(body);
        id3v2.setFrame(frame);
        assertEquals(1, mp3.getUnsynchronizedFragments().size());


        // test two differences
        id3v1.setArtist("<song artist>");
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        body = new FrameBodyTPE1((byte) 0, "different");
        frame = new ID3v2_4Frame();
        frame.setBody(body);
        filename.setFrame(frame);
        assertEquals(2, mp3.getUnsynchronizedFragments().size());
        body = new FrameBodyTPE1((byte) 0, "<song artist>");
        frame = new ID3v2_4Frame();
        frame.setBody(body);
        filename.setFrame(frame);
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        lyrics3.setField(new Lyrics3v2Field(new FieldBodyEAR("different")));
        assertEquals(2, mp3.getUnsynchronizedFragments().size());
        lyrics3.setField(new Lyrics3v2Field(new FieldBodyEAR("<song artist>")));
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        body = new FrameBodyTPE1((byte) 0, "different");
        frame = new ID3v2_4Frame(body);
        id3v2.setFrame(frame);
        assertEquals(2, mp3.getUnsynchronizedFragments().size());
        body = new FrameBodyTPE1((byte) 0, "<song artist>");
        frame = new ID3v2_4Frame(body);
        id3v2.setFrame(frame);
        assertEquals(1, mp3.getUnsynchronizedFragments().size());
        mp3.getMp3file().delete();
    }

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        // 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
        mp3file.save();

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        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);

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