org.jaudiotagger.audio.mp4
Class Mp4TagReader

java.lang.Object
  org.jaudiotagger.audio.mp4.Mp4TagReader

public class Mp4TagReader
extends java.lang.Object

Reads metadata from mp4,

The metadata tags are usually held under the ilst atom as shown below

Valid Exceptions to the rule:

Can be no udta atom with meta rooted immediately under moov instead

Can be no udta/meta atom at all

 |--- ftyp
 |--- moov
 |......|
 |......|----- mvdh
 |......|----- trak
 |......|----- udta
 |..............|
 |..............|-- meta
 |....................|
 |....................|-- hdlr
 |....................|-- ilst
 |.........................|
 |.........................|---- @nam (Optional for each metadatafield)
 |.........................|.......|-- data
 |.........................|....... ecetera
 |.........................|---- ---- (Optional for reverse dns field)
 |.................................|-- mean
 |.................................|-- name
 |.................................|-- data
 |.................................... ecetere
 |
 |--- mdat
 

Field Summary

static java.util.logging.Logger

logger

Constructor Summary

Mp4TagReader()

Method Summary

private void	createMp4Field(Mp4Tag tag, Mp4BoxHeader header, java.nio.ByteBuffer raw) Process the field and add to the tag Note:In the case of coverart MP4 holds all the coverart within individual dataitems all within a single covr atom, we will add seperate mp4field for each image.
Mp4Tag	read(java.io.RandomAccessFile raf)

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

Constructor Detail

Mp4TagReader

public Mp4TagReader()

Method Detail

read

public Mp4Tag read(java.io.RandomAccessFile raf)
            throws CannotReadException,
                   java.io.IOException

Throws:

CannotReadException

java.io.IOException

createMp4Field

private void createMp4Field(Mp4Tag tag,
                            Mp4BoxHeader header,
                            java.nio.ByteBuffer raw)
                     throws java.io.UnsupportedEncodingException

Process the field and add to the tag

Note:In the case of coverart MP4 holds all the coverart within individual dataitems all within a single covr atom, we will add seperate mp4field for each image.

Parameters:

tag -

header -

raw -

Throws:

java.io.UnsupportedEncodingException