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RealFileReader.javaAPI DocJaudiotagger 2.0.43604Wed Mar 30 16:11:46 BST 2011org.jaudiotagger.audio.real

RealFileReader

public class RealFileReader extends org.jaudiotagger.audio.generic.AudioFileReader
Real Media File Format: Major Chunks: .RMF PROP MDPR CONT DATA INDX

Fields Summary
Constructors Summary
Methods Summary
private RealChunkfindContChunk(java.io.RandomAccessFile raf)

        final RealChunk rmf = RealChunk.readChunk(raf);
        final RealChunk prop = RealChunk.readChunk(raf);
        RealChunk rv = RealChunk.readChunk(raf);
        while (!rv.isCONT()) rv = RealChunk.readChunk(raf);
        return rv;
private RealChunkfindPropChunk(java.io.RandomAccessFile raf)

        final RealChunk rmf = RealChunk.readChunk(raf);
        final RealChunk prop = RealChunk.readChunk(raf);
        return prop;
protected org.jaudiotagger.audio.generic.GenericAudioHeadergetEncodingInfo(java.io.RandomAccessFile raf)

        final GenericAudioHeader rv = new GenericAudioHeader();
        final RealChunk prop = findPropChunk(raf);
        final DataInputStream dis = prop.getDataInputStream();
        final int objVersion = Utils.readUint16(dis);
        if (objVersion == 0)
        {
            final long maxBitRate = Utils.readUint32(dis) / 1000;
            final long avgBitRate = Utils.readUint32(dis) / 1000;
            final long maxPacketSize = Utils.readUint32(dis);
            final long avgPacketSize = Utils.readUint32(dis);
            final long packetCnt = Utils.readUint32(dis);
            final int duration = Utils.readUint32AsInt(dis) / 1000;
            final long preroll = Utils.readUint32(dis);
            final long indexOffset = Utils.readUint32(dis);
            final long dataOffset = Utils.readUint32(dis);
            final int numStreams = Utils.readUint16(dis);
            final int flags = Utils.readUint16(dis);
            rv.setBitrate((int) avgBitRate);
            rv.setLength(duration);
            rv.setVariableBitRate(maxBitRate != avgBitRate);
        }
        return rv;
protected org.jaudiotagger.tag.TaggetTag(java.io.RandomAccessFile raf)

        final RealChunk cont = findContChunk(raf);
        final DataInputStream dis = cont.getDataInputStream();
        final String title = Utils.readString(dis, Utils.readUint16(dis));
        final String author = Utils.readString(dis, Utils.readUint16(dis));
        final String copyright = Utils.readString(dis, Utils.readUint16(dis));
        final String comment = Utils.readString(dis, Utils.readUint16(dis));
        final RealTag rv = new RealTag();
        // NOTE: frequently these fields are off-by-one, thus the crazy
        // logic below...
        try
        {
            rv.addField(FieldKey.TITLE,(title.length() == 0 ? author : title));
            rv.addField(FieldKey.ARTIST, title.length() == 0 ? copyright : author);
            rv.addField(FieldKey.COMMENT,comment);
        }
        catch(FieldDataInvalidException fdie)
        {
            throw new RuntimeException(fdie);
        }
        return rv;