FlacStreamReader flacStream = new FlacStreamReader(raf);
flacStream.findStream();
//Hold the metadata
VorbisCommentTag tag = null;
List<MetadataBlockDataPicture> images = new ArrayList<MetadataBlockDataPicture>();
//Seems like we have a valid stream
boolean isLastBlock = false;
while (!isLastBlock)
{
if(logger.isLoggable(Level.CONFIG))
{
logger.config("Looking for MetaBlockHeader at:"+raf.getFilePointer());
}
//Read the header
MetadataBlockHeader mbh = MetadataBlockHeader.readHeader(raf);
if(mbh==null)
{
break;
}
if(logger.isLoggable(Level.CONFIG))
{
logger.config("Reading MetadataBlockHeader:"+mbh.toString() + " ending at "+raf.getFilePointer());
}
//Is it one containing some sort of metadata, therefore interested in it?
switch (mbh.getBlockType())
{
//We got a vorbiscomment comment block, parse it
case VORBIS_COMMENT:
byte[] commentHeaderRawPacket = new byte[mbh.getDataLength()];
raf.read(commentHeaderRawPacket);
tag = vorbisCommentReader.read(commentHeaderRawPacket, false);
break;
case PICTURE:
try
{
MetadataBlockDataPicture mbdp = new MetadataBlockDataPicture(mbh, raf);
images.add(mbdp);
}
catch (IOException ioe)
{
logger.warning("Unable to read picture metablock, ignoring:" + ioe.getMessage());
}
catch (InvalidFrameException ive)
{
logger.warning("Unable to read picture metablock, ignoring" + ive.getMessage());
}
break;
//This is not a metadata block we are interested in so we skip to next block
default:
if(logger.isLoggable(Level.CONFIG))
{
logger.config("Ignoring MetadataBlock:"+mbh.getBlockType());
}
raf.seek(raf.getFilePointer() + mbh.getDataLength());
break;
}
isLastBlock = mbh.isLastBlock();
mbh = null;
}
//Note there may not be either a tag or any images, no problem this is valid however to make it easier we
//just initialize Flac with an empty VorbisTag
if (tag == null)
{
tag = VorbisCommentTag.createNewTag();
}
FlacTag flacTag = new FlacTag(tag, images);
return flacTag;
