org.jaudiotagger.tag.vorbiscomment
Class VorbisCommentReader

java.lang.Object
  org.jaudiotagger.tag.vorbiscomment.VorbisCommentReader

public class VorbisCommentReader
extends java.lang.Object

Create the VorbisCommentTag by reading from the raw packet data

This is in the same format whether encoded with Ogg or Flac except the framing bit is only present when used within Ogg Vorbis

 From the http://xiph.org/vorbis/doc/Vorbis_I_spec.html#vorbis-spec-comment
 Read decodes the packet data using the following algorithm:
  [vendor_length] = read an unsigned integer of 32 bits
  [vendor_string] = read a UTF-8 vector as [vendor_length] octets
  [user_comment_list_length] = read an unsigned integer of 32 bits
  iterate [user_comment_list_length] times {
      5) [length] = read an unsigned integer of 32 bits
      6) this iteration's user comment = read a UTF-8 vector as [length] octets
    }
  [framing_bit] = read a single bit as boolean
  if ( [framing_bit] unset or end-of-packet ) then ERROR
  done.
 

Field Summary

static int	FIELD_COMMENT_LENGTH_LENGTH
static int	FIELD_USER_COMMENT_LIST_LENGTH
static int	FIELD_VENDOR_LENGTH_LENGTH
static int	FIELD_VENDOR_LENGTH_POS
static int	FIELD_VENDOR_STRING_POS
private Fix	fix
private static int	JAUDIOTAGGER_MAX_COMMENT_LENGTH max comment length that jaudiotagger can handle, this isnt the maximum column length allowed but we dont dont allow comments larger than this because of problem with allocating memory (10MB shoudl be fine for all apps)
static java.util.logging.Logger	logger

Constructor Summary

VorbisCommentReader()

VorbisCommentReader(Fix fix)

Method Summary

VorbisCommentTag

read(byte[] rawdata, boolean isFramingBit)

Methods inherited from class java.lang.Object

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

Field Detail

logger

public static java.util.logging.Logger logger

FIELD_VENDOR_LENGTH_POS

public static final int FIELD_VENDOR_LENGTH_POS

See Also:

Constant Field Values

FIELD_VENDOR_STRING_POS

public static final int FIELD_VENDOR_STRING_POS

See Also:

Constant Field Values

FIELD_VENDOR_LENGTH_LENGTH

public static final int FIELD_VENDOR_LENGTH_LENGTH

See Also:

Constant Field Values

FIELD_USER_COMMENT_LIST_LENGTH

public static final int FIELD_USER_COMMENT_LIST_LENGTH

See Also:

Constant Field Values

FIELD_COMMENT_LENGTH_LENGTH

public static final int FIELD_COMMENT_LENGTH_LENGTH

See Also:

Constant Field Values

fix

private Fix fix

JAUDIOTAGGER_MAX_COMMENT_LENGTH

private static final int JAUDIOTAGGER_MAX_COMMENT_LENGTH

max comment length that jaudiotagger can handle, this isnt the maximum column length allowed but we dont dont allow comments larger than this because of problem with allocating memory (10MB shoudl be fine for all apps)

See Also:

Constant Field Values

Constructor Detail

VorbisCommentReader

public VorbisCommentReader()

VorbisCommentReader

public VorbisCommentReader(Fix fix)

Method Detail

read

public VorbisCommentTag read(byte[] rawdata,
                             boolean isFramingBit)
                      throws java.io.IOException,
                             CannotReadException

Parameters:

rawdata -

isFramingBit -

Returns:

logical representation of VorbisCommentTag

Throws:

java.io.IOException

CannotReadException