entagged.audioformats.asf.data
Class FileHeader

java.lang.Object
  entagged.audioformats.asf.data.Chunk
      entagged.audioformats.asf.data.FileHeader

public class FileHeader
extends Chunk

This class stores the information about the file, which is contained within a special chunk of asf files.

Author:

Christian Laireiter

Field Summary

Fields inherited from class entagged.audioformats.asf.data.Chunk

chunkLength, guid, position

Constructor Summary

FileHeader(long fileHeaderStart, 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.

Method Summary

BigInteger	getDuration()
int	getDurationInSeconds() This method converts getDuration()from 100ns steps to normal seconds.
Date	getFileCreationTime()
BigInteger	getFileSize()
long	getFlags()
long	getMaxPackageSize()
long	getMinPackageSize()
BigInteger	getPackageCount()
float	getPreciseDuration() This method converts getDuration() from 100ns steps to normal seconds with a fractional part taking milliseconds.
BigInteger	getTimeEndPos()
BigInteger	getTimeStartPos()
long	getUncompressedFrameSize()
String	prettyPrint() (overridden)

Methods inherited from class entagged.audioformats.asf.data.Chunk

getChunckEnd, getChunkLength, getGuid, getPosition, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FileHeader

public FileHeader(long fileHeaderStart,
                  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.

Parameters:

fileHeaderStart - Position in file or stream, where the file header starts.

chunckLen - Length of the file header (chunk)

size - Size of file or stream

fileTime - Time file or stream was created. Time is calculated since 1st january of 1601 in 100ns steps.

pkgCount - Number of stream packages.

dur - Duration of media clip in 100ns steps

timestampStart - Timestamp of start timeStartPos

timestampEnd - Timestamp of end timeEndPos

headerFlags - some stream related flags.

minPkgSize - minimun size of packages

maxPkgSize - maximum size of packages

uncmpVideoFrameSize - Size of an uncompressed Video Frame.

Method Detail

getDuration

public BigInteger getDuration()

Returns:

Returns the duration.

getDurationInSeconds

public int getDurationInSeconds()

This method converts getDuration()from 100ns steps to normal seconds.

Returns:

Duration of the media in seconds.

getFileCreationTime

public Date getFileCreationTime()

Returns:

Returns the fileCreationTime.

getFileSize

public BigInteger getFileSize()

Returns:

Returns the fileSize.

getFlags

public long getFlags()

Returns:

Returns the flags.

getMaxPackageSize

public long getMaxPackageSize()

Returns:

Returns the maxPackageSize.

getMinPackageSize

public long getMinPackageSize()

Returns:

Returns the minPackageSize.

getPackageCount

public BigInteger getPackageCount()

Returns:

Returns the packageCount.

getPreciseDuration

public float getPreciseDuration()

This method converts getDuration() from 100ns steps to normal seconds with a fractional part taking milliseconds.

Returns:

The duraion of the media in seconds (with a precision of milliseconds)

getTimeEndPos

public BigInteger getTimeEndPos()

Returns:

Returns the timeEndPos.

getTimeStartPos

public BigInteger getTimeStartPos()

Returns:

Returns the timeStartPos.

getUncompressedFrameSize

public long getUncompressedFrameSize()

Returns:

Returns the uncompressedFrameSize.

prettyPrint

public String prettyPrint()

(overridden)

Overrides:

prettyPrint in class Chunk

Returns:

Information of current Chunk Object.

See Also:

Chunk.prettyPrint()