File	Doc	Category	Size	Date	Package
FileHeader.java	API Doc	Jaudiotagger 2.0.4	7441	Wed Mar 30 16:11:50 BST 2011	org.jaudiotagger.audio.asf.data

FileHeader

• java.lang.Object
  • Chunk

Fields Summary
private final BigInteger	duration Duration of the media content in 100ns steps.
private final Date	fileCreationTime The time the file was created.
private final BigInteger	fileSize Size of the file or stream.
private final long	flags Usually contains value of 2.
private final long	maxPackageSize Maximum size of stream packages. Warning: must be same size as {@link #minPackageSize}. Its not known how to handle deviating values.
private final long	minPackageSize Minimun size of stream packages. Warning: must be same size as {@link #maxPackageSize}. Its not known how to handle deviating values.
private final BigInteger	packageCount Number of stream packages within the File.
private final BigInteger	timeEndPos No Idea of the Meaning, but stored anyway. Source documentation says it is: "Timestamp of end position"
private final BigInteger	timeStartPos Like {@link #timeEndPos}no Idea.
private final long	uncompressedFrameSize Size of an uncompressed video frame.

Constructors Summary

public FileHeader(BigInteger chunckLen, BigInteger size, BigInteger fileTime, BigInteger pkgCount, BigInteger dur, BigInteger timestampStart, BigInteger timestampEnd, long headerFlags, long minPkgSize, long maxPkgSize, long uncmpVideoFrameSize) Creates an instance. param chunckLen Length of the file header (chunk) param size Size of file or stream param fileTime Time file or stream was created. Time is calculated since 1st january of 1601 in 100ns steps. param pkgCount Number of stream packages. param dur Duration of media clip in 100ns steps param timestampStart Timestamp of start {@link #timeStartPos} param timestampEnd Timestamp of end {@link #timeEndPos} param headerFlags some stream related flags. param minPkgSize minimum size of packages param maxPkgSize maximum size of packages param uncmpVideoFrameSize Size of an uncompressed Video Frame. super(GUID.GUID_FILE, chunckLen); this.fileSize = size; this.packageCount = pkgCount; this.duration = dur; this.timeStartPos = timestampStart; this.timeEndPos = timestampEnd; this.flags = headerFlags; this.minPackageSize = minPkgSize; this.maxPackageSize = maxPkgSize; this.uncompressedFrameSize = uncmpVideoFrameSize; this.fileCreationTime = Utils.getDateOf(fileTime).getTime();

Methods Summary
public java.math.BigInteger	getDuration() return Returns the duration. return this.duration;
public int	getDurationInSeconds() This method converts {@link #getDuration()}from 100ns steps to normal seconds. return Duration of the media in seconds. return this.duration.divide(new BigInteger("10000000")).intValue();
public java.util.Date	getFileCreationTime() return Returns the fileCreationTime. return new Date(this.fileCreationTime.getTime());
public java.math.BigInteger	getFileSize() return Returns the fileSize. return this.fileSize;
public long	getFlags() return Returns the flags. return this.flags;
public long	getMaxPackageSize() return Returns the maxPackageSize. return this.maxPackageSize;
public long	getMinPackageSize() return Returns the minPackageSize. return this.minPackageSize;
public java.math.BigInteger	getPackageCount() return Returns the packageCount. return this.packageCount;
public float	getPreciseDuration() This method converts {@link #getDuration()} from 100ns steps to normal seconds with a fractional part taking milliseconds. return The duration of the media in seconds (with a precision of milliseconds) return (float) (getDuration().doubleValue() / 10000000d);
public java.math.BigInteger	getTimeEndPos() return Returns the timeEndPos. return this.timeEndPos;
public java.math.BigInteger	getTimeStartPos() return Returns the timeStartPos. return this.timeStartPos;
public long	getUncompressedFrameSize() return Returns the uncompressedFrameSize. return this.uncompressedFrameSize;
public java.lang.String	prettyPrint(java.lang.String prefix) (overridden) see org.jaudiotagger.audio.asf.data.Chunk#prettyPrint(String) final StringBuilder result = new StringBuilder(super.prettyPrint(prefix)); result.append(prefix).append(" |-> Filesize = ").append( getFileSize().toString()).append(" Bytes").append( Utils.LINE_SEPARATOR); result.append(prefix).append(" |-> Media duration= ").append( getDuration().divide(new BigInteger("10000")).toString()) .append(" ms").append(Utils.LINE_SEPARATOR); result.append(prefix).append(" |-> Created at = ").append( getFileCreationTime()).append(Utils.LINE_SEPARATOR); return result.toString();