File	Doc	Category	Size	Date	Package
AsfHeader.java	API Doc	Jaudiotagger 2.0.4	7456	Wed Mar 30 16:11:50 BST 2011	org.jaudiotagger.audio.asf.data

AsfHeader

• java.lang.Object
  • ChunkContainer

Fields Summary
public static final Charset	ASF_CHARSET The charset "UTF-16LE" is mandatory for ASF handling.
public static final byte[]	ZERO_TERM Byte sequence representing the zero term character.
private final long	chunkCount An ASF header contains multiple chunks. The count of those is stored here.

Constructors Summary
public AsfHeader(long pos, BigInteger chunkLen, long chunkCnt) Creates an instance. param pos see {@link Chunk#position} param chunkLen see {@link Chunk#chunkLength} param chunkCnt super(GUID.GUID_HEADER, pos, chunkLen); this.chunkCount = chunkCnt;

Methods Summary
public ContentDescription	findContentDescription() This method looks for an content description object in this header instance, if not found there, it tries to get one from a contained ASF header extension object. return content description if found, null otherwise. ContentDescription result = getContentDescription(); if (result == null && getExtendedHeader() != null) { result = getExtendedHeader().getContentDescription(); } return result;
public MetadataContainer	findExtendedContentDescription() This method looks for an extended content description object in this header instance, if not found there, it tries to get one from a contained ASF header extension object. return extended content description if found, null otherwise. MetadataContainer result = getExtendedContentDescription(); if (result == null && getExtendedHeader() != null) { result = getExtendedHeader().getExtendedContentDescription(); } return result;
public MetadataContainer	findMetadataContainer(ContainerType type) This method searches for a metadata container of the given type. param type the type of the container to look up. return a container of specified type, of null if not contained. MetadataContainer result = (MetadataContainer) getFirst(type .getContainerGUID(), MetadataContainer.class); if (result == null) { result = (MetadataContainer) getExtendedHeader().getFirst( type.getContainerGUID(), MetadataContainer.class); } return result;
public AudioStreamChunk	getAudioStreamChunk() This method returns the first audio stream chunk found in the asf file or stream. return Returns the audioStreamChunk. AudioStreamChunk result = null; final List<Chunk> streamChunks = assertChunkList(GUID.GUID_STREAM); for (int i = 0; i < streamChunks.size() && result == null; i++) { if (streamChunks.get(i) instanceof AudioStreamChunk) { result = (AudioStreamChunk) streamChunks.get(i); } } return result;
public long	getChunkCount() Returns the amount of chunks, when this instance was created. If chunks have been added, this won't be reflected with this call. For that use {@link #getChunks()}. return Chunkcount at instance creation. return this.chunkCount;
public ContentDescription	getContentDescription() return Returns the contentDescription. return (ContentDescription) getFirst(GUID.GUID_CONTENTDESCRIPTION, ContentDescription.class);
public EncodingChunk	getEncodingChunk() return Returns the encodingChunk. return (EncodingChunk) getFirst(GUID.GUID_ENCODING, EncodingChunk.class);
public EncryptionChunk	getEncryptionChunk() return Returns the encodingChunk. return (EncryptionChunk) getFirst(GUID.GUID_CONTENT_ENCRYPTION, EncryptionChunk.class);
public MetadataContainer	getExtendedContentDescription() return Returns the tagHeader. return (MetadataContainer) getFirst( GUID.GUID_EXTENDED_CONTENT_DESCRIPTION, MetadataContainer.class);
public AsfExtendedHeader	getExtendedHeader() return Returns the extended header. return (AsfExtendedHeader) getFirst(GUID.GUID_HEADER_EXTENSION, AsfExtendedHeader.class);
public FileHeader	getFileHeader() return Returns the fileHeader. return (FileHeader) getFirst(GUID.GUID_FILE, FileHeader.class);
public StreamBitratePropertiesChunk	getStreamBitratePropertiesChunk() return Returns the streamBitratePropertiesChunk. return (StreamBitratePropertiesChunk) getFirst( GUID.GUID_STREAM_BITRATE_PROPERTIES, StreamBitratePropertiesChunk.class);
public java.lang.String	prettyPrint(java.lang.String prefix) {@inheritDoc} final StringBuilder result = new StringBuilder(super.prettyPrint(prefix, prefix + " | : Contains: \"" + getChunkCount() + "\" chunks" + Utils.LINE_SEPARATOR)); return result.toString();