Examples with MetadataBlockDataPadding org.jaudiotagger.audio.flac.metadatablock.MetadataBlockDataPadding used on opensource projects

Example 1 with MetadataBlockDataPadding

use of org.jaudiotagger.audio.flac.metadatablock.MetadataBlockDataPadding in project MusicDNA by harjot-oberai.

the class FlacTagCreator method convert.

/**
     * @param tag
     * @param paddingSize extra padding to be added
     * @return
     * @throws UnsupportedEncodingException
     */
public ByteBuffer convert(Tag tag, int paddingSize) throws UnsupportedEncodingException {
    logger.config("Convert flac tag:padding:" + paddingSize);
    FlacTag flacTag = (FlacTag) tag;
    int tagLength = 0;
    ByteBuffer vorbiscomment = null;
    if (flacTag.getVorbisCommentTag() != null) {
        vorbiscomment = creator.convert(flacTag.getVorbisCommentTag());
        tagLength = vorbiscomment.capacity() + MetadataBlockHeader.HEADER_LENGTH;
    }
    for (MetadataBlockDataPicture image : flacTag.getImages()) {
        tagLength += image.getBytes().length + MetadataBlockHeader.HEADER_LENGTH;
    }
    logger.config("Convert flac tag:taglength:" + tagLength);
    ByteBuffer buf = ByteBuffer.allocate(tagLength + paddingSize);
    MetadataBlockHeader vorbisHeader;
    //If there are other metadata blocks
    if (flacTag.getVorbisCommentTag() != null) {
        if ((paddingSize > 0) || (flacTag.getImages().size() > 0)) {
            vorbisHeader = new MetadataBlockHeader(false, BlockType.VORBIS_COMMENT, vorbiscomment.capacity());
        } else {
            vorbisHeader = new MetadataBlockHeader(true, BlockType.VORBIS_COMMENT, vorbiscomment.capacity());
        }
        buf.put(vorbisHeader.getBytes());
        buf.put(vorbiscomment);
    }
    //Images
    ListIterator<MetadataBlockDataPicture> li = flacTag.getImages().listIterator();
    while (li.hasNext()) {
        MetadataBlockDataPicture imageField = li.next();
        MetadataBlockHeader imageHeader;
        if (paddingSize > 0 || li.hasNext()) {
            imageHeader = new MetadataBlockHeader(false, BlockType.PICTURE, imageField.getLength());
        } else {
            imageHeader = new MetadataBlockHeader(true, BlockType.PICTURE, imageField.getLength());
        }
        buf.put(imageHeader.getBytes());
        buf.put(imageField.getBytes());
    }
    //Padding
    logger.config("Convert flac tag at" + buf.position());
    if (paddingSize > 0) {
        int paddingDataSize = paddingSize - MetadataBlockHeader.HEADER_LENGTH;
        MetadataBlockHeader paddingHeader = new MetadataBlockHeader(true, BlockType.PADDING, paddingDataSize);
        MetadataBlockDataPadding padding = new MetadataBlockDataPadding(paddingDataSize);
        buf.put(paddingHeader.getBytes());
        buf.put(padding.getBytes());
    }
    buf.rewind();
    return buf;
}