entagged.audioformats.asf.data
Class GUID

java.lang.Object
  entagged.audioformats.asf.data.GUID

public class GUID
extends Object

This class is used for representation of GUIDs and as a reference list of all Known GUIDs.

Author:

Christian Laireiter

Field Summary

static GUID	GUID_AUDIO_ERROR_CONCEALEMENT_ABSENT This constant defines the GUID for stream chunks describing audio streams, indicating the the audio stream has no error concealment.
static GUID	GUID_AUDIO_ERROR_CONCEALEMENT_INTERLEAVED This constant defines the GUID for stream chunks describing audio streams, indicating the the audio stream has interleaved error concealment.
static GUID	GUID_AUDIOSTREAM This constant stores the GUID indicating that stream type is audio.
static GUID	GUID_CONTENTDESCRIPTION This constant represents the guid for a chunk which contains Title, author, copyright, description and rating.
static GUID	GUID_ENCODING This constant stores the GUID for Encoding-Info chunks.
static GUID	GUID_EXTENDED_CONTENT_DESCRIPTION This constant defines the GUID for a WMA "Extended Content Description" chunk.
static GUID	GUID_FILE GUID of ASF file header.
static GUID	GUID_HEADER This constant defines the GUID of a asf header chunk.
static GUID	GUID_HEADER_EXTENSION This constant stores a GUID whose functionality is unknown.
static int	GUID_LENGTH This constant stores the length of GUIDs used with ASF streams.
static GUID	GUID_STREAM This constant stores the GUID indicating a stream object.
static GUID	GUID_STREAM_BITRATE_PROPERTIES This constant stores a GUID indicating a "stream bitrate properties" chunk.
static GUID	GUID_VIDEOSTREAM This constant stores the GUID indicating that stream type is video.
static GUID[]	KNOWN_GUIDS This field stores all knwon GUIDs.

Constructor Summary

GUID(int[] value)
Creates an instance and assigns given guid.

GUID(int[] value, String desc)
Creates an instance like GUID(int[])and sets the optional description.

Method Summary

static boolean	assertGUID(int[] value) This method checks if the given value is matching the GUID specification of ASF streams.
boolean	equals(Object obj) This method compares two objects.
byte[]	getBytes() This method returns the guid as an array of bytes.
String	getDescription()
int[]	getGUID() This method returns the GUID of this object.
static String	getGuidDescription(GUID guid) This method searches a GUID in KNOWN_GUIDSwhich is equal to the given guid and returns its description.
boolean	isValid() This method checks if the currently stored GUID (guid) is correctly filled.
String	toString() This method gives a hex formatted representation of getGUID()

Methods inherited from class java.lang.Object

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

Field Detail

GUID_AUDIO_ERROR_CONCEALEMENT_ABSENT

public static final GUID GUID_AUDIO_ERROR_CONCEALEMENT_ABSENT

This constant defines the GUID for stream chunks describing audio streams, indicating the the audio stream has no error concealment.

GUID_AUDIO_ERROR_CONCEALEMENT_INTERLEAVED

public static final GUID GUID_AUDIO_ERROR_CONCEALEMENT_INTERLEAVED

This constant defines the GUID for stream chunks describing audio streams, indicating the the audio stream has interleaved error concealment.

GUID_AUDIOSTREAM

public static final GUID GUID_AUDIOSTREAM

This constant stores the GUID indicating that stream type is audio.

GUID_CONTENTDESCRIPTION

public static final GUID GUID_CONTENTDESCRIPTION

This constant represents the guid for a chunk which contains Title, author, copyright, description and rating.

GUID_ENCODING

public static final GUID GUID_ENCODING

This constant stores the GUID for Encoding-Info chunks.

GUID_EXTENDED_CONTENT_DESCRIPTION

public static final GUID GUID_EXTENDED_CONTENT_DESCRIPTION

This constant defines the GUID for a WMA "Extended Content Description" chunk.

GUID_FILE

public static final GUID GUID_FILE

GUID of ASF file header.

GUID_HEADER

public static final GUID GUID_HEADER

This constant defines the GUID of a asf header chunk.

GUID_LENGTH

public static final int GUID_LENGTH

This constant stores the length of GUIDs used with ASF streams.

See Also:

Constant Field Values

GUID_STREAM

public static final GUID GUID_STREAM

This constant stores the GUID indicating a stream object.

GUID_HEADER_EXTENSION

public static final GUID GUID_HEADER_EXTENSION

This constant stores a GUID whose functionality is unknown.

GUID_STREAM_BITRATE_PROPERTIES

public static final GUID GUID_STREAM_BITRATE_PROPERTIES

This constant stores a GUID indicating a "stream bitrate properties" chunk.

GUID_VIDEOSTREAM

public static final GUID GUID_VIDEOSTREAM

This constant stores the GUID indicating that stream type is video.

KNOWN_GUIDS

public static final GUID[] KNOWN_GUIDS

This field stores all knwon GUIDs.

Constructor Detail

GUID

public GUID(int[] value)

Creates an instance and assigns given guid.

Parameters:

value - Guid, which should be assigned.

GUID

public GUID(int[] value,
            String desc)

Creates an instance like GUID(int[])and sets the optional description.

Parameters:

value - Guid, which should be assigned.

desc - Description for the guid.

Method Detail

assertGUID

public static boolean assertGUID(int[] value)

This method checks if the given value is matching the GUID specification of ASF streams.

Parameters:

value - possible GUID.

Returns:

true if value matches the specification of a GUID.

getGuidDescription

public static String getGuidDescription(GUID guid)

This method searches a GUID in KNOWN_GUIDSwhich is equal to the given guid and returns its description.
This method is useful if a guid was read out of a file and no identification has been done yet.

Parameters:

guid - guid, which description is needed.

Returns:

description of the guid if found. Else null

equals

public boolean equals(Object obj)

This method compares two objects. If the given Object is a GUID, the stored GUID values are compared.

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

getBytes

public byte[] getBytes()

This method returns the guid as an array of bytes.

Returns:

The guid as a byte array.

See Also:

getGUID()

getDescription

public String getDescription()

Returns:

Returns the description.

getGUID

public int[] getGUID()

This method returns the GUID of this object.

Returns:

stored GUID.

isValid

public boolean isValid()

This method checks if the currently stored GUID (guid) is correctly filled.

Returns:

true if it is.

toString

public String toString()

This method gives a hex formatted representation of getGUID()

Overrides:

toString in class Object

See Also:

Object.toString()