FileDocCategorySizeDatePackage
FileHeaderReader.javaAPI DocJaudiotagger 2.0.43134Wed Mar 30 16:11:50 BST 2011org.jaudiotagger.audio.asf.io

FileHeaderReader

public class FileHeaderReader extends Object implements ChunkReader
Reads and interprets the data of the file header.
author
Christian Laireiter

Fields Summary
private static final org.jaudiotagger.audio.asf.data.GUID[]
APPLYING
The GUID this reader {@linkplain #getApplyingIds() applies to}
Constructors Summary
protected FileHeaderReader()
Should not be used for now.


               
      
        // NOTHING toDo
Methods Summary
public booleancanFail()
{@inheritDoc}

        return false;
public org.jaudiotagger.audio.asf.data.GUID[]getApplyingIds()
{@inheritDoc}

        return APPLYING.clone();
public org.jaudiotagger.audio.asf.data.Chunkread(org.jaudiotagger.audio.asf.data.GUID guid, java.io.InputStream stream, long chunkStart)
{@inheritDoc}

        final BigInteger chunkLen = Utils.readBig64(stream);
        // Skip client GUID.
        stream.skip(16);
        final BigInteger fileSize = Utils.readBig64(stream);
        // fileTime in 100 ns since midnight of 1st january 1601 GMT
        final BigInteger fileTime = Utils.readBig64(stream);

        final BigInteger packageCount = Utils.readBig64(stream);

        final BigInteger timeEndPos = Utils.readBig64(stream);
        final BigInteger duration = Utils.readBig64(stream);
        final BigInteger timeStartPos = Utils.readBig64(stream);

        final long flags = Utils.readUINT32(stream);

        final long minPkgSize = Utils.readUINT32(stream);
        final long maxPkgSize = Utils.readUINT32(stream);
        final long uncompressedFrameSize = Utils.readUINT32(stream);

        final FileHeader result = new FileHeader(chunkLen, fileSize, fileTime,
                packageCount, duration, timeStartPos, timeEndPos, flags,
                minPkgSize, maxPkgSize, uncompressedFrameSize);
        result.setPosition(chunkStart);
        return result;