Package org.mp4parser.boxes.iso14496.part12

Class ItemLocationBox

java.lang.Object

org.mp4parser.support.AbstractBox

org.mp4parser.support.AbstractFullBox

org.mp4parser.boxes.iso14496.part12.ItemLocationBox

All Implemented Interfaces:

Box, FullBox, ParsableBox

public class ItemLocationBox
extends AbstractFullBox

4cc = ""iloc""

 aligned(8) class ItemLocationBox extends FullBox('iloc', version, 0) {
  unsigned int(4) offset_size;
  unsigned int(4) length_size;
  unsigned int(4) base_offset_size;
  if (version == 1)
   unsigned int(4) index_size;
  else
   unsigned int(4) reserved;
  unsigned int(16) item_count;
  for (i=0; i<item_count; i++) {
   unsigned int(16) item_ID;
   if (version == 1) {
    unsigned int(12) reserved = 0;
    unsigned int(4) construction_method;
   }
   unsigned int(16) data_reference_index;
   unsigned int(base_offset_size*8) base_offset;
   unsigned int(16) extent_count;
   for (j=0; j<extent_count; j++) {
    if ((version == 1) && (index_size > 0)) {
     unsigned int(index_size*8) extent_index;
    }
    unsigned int(offset_size*8) extent_offset;
    unsigned int(length_size*8) extent_length;
   }
  }
 }
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ItemLocationBox.Extent
class	ItemLocationBox.Item

Field Summary

Fields

Modifier and Type	Field	Description
int	baseOffsetSize
int	indexSize
List<ItemLocationBox.Item>	items
int	lengthSize
int	offsetSize
static final String	TYPE

Fields inherited from class org.mp4parser.support.AbstractFullBox

flags, version

Fields inherited from class org.mp4parser.support.AbstractBox

content, type

Constructor Summary

Constructors

Constructor	Description
ItemLocationBox()

Method Summary

Modifier and Type	Method	Description
void	_parseDetails(ByteBuffer content)	Parse the box's fields and child boxes if any.
ItemLocationBox.Extent	createExtent(long extentOffset, long extentLength, long extentIndex)
ItemLocationBox.Extent	createExtent(ByteBuffer bb)
ItemLocationBox.Item	createItem(int itemId, int constructionMethod, int dataReferenceIndex, long baseOffset, List<ItemLocationBox.Extent> extents)
ItemLocationBox.Item	createItem(ByteBuffer bb)
int	getBaseOffsetSize()
protected void	getContent(ByteBuffer byteBuffer)	Write the box's content into the given ByteBuffer.
protected long	getContentSize()	Get the box's content size without its header.
int	getIndexSize()
List<ItemLocationBox.Item>	getItems()
int	getLengthSize()
int	getOffsetSize()
void	setBaseOffsetSize(int baseOffsetSize)
void	setIndexSize(int indexSize)
void	setItems(List<ItemLocationBox.Item> items)
void	setLengthSize(int lengthSize)
void	setOffsetSize(int offsetSize)

Methods inherited from class org.mp4parser.support.AbstractFullBox

getFlags, getVersion, parseVersionAndFlags, setFlags, setVersion, writeVersionAndFlags

Methods inherited from class org.mp4parser.support.AbstractBox

getBox, getSize, getType, getUserType, isParsed, parse, parseDetails

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mp4parser.Box

getBox, getSize, getType

Methods inherited from interface org.mp4parser.ParsableBox

parse

Field Details

TYPE

public static final String TYPE

See Also:

• Constant Field Values

offsetSize

public int offsetSize

lengthSize

public int lengthSize

baseOffsetSize

public int baseOffsetSize

indexSize

public int indexSize

items

public List<ItemLocationBox.Item> items

Constructor Details

ItemLocationBox

public ItemLocationBox()

Method Details

getContentSize

protected long getContentSize()

Description copied from class: AbstractBox

Get the box's content size without its header. This must be the exact number of bytes that getContent(ByteBuffer) writes.

Specified by:

getContentSize in class AbstractBox

Returns:

Gets the box's content size in bytes

See Also:

• AbstractBox.getContent(java.nio.ByteBuffer)

getContent

protected void getContent(ByteBuffer byteBuffer)

Description copied from class: AbstractBox

Write the box's content into the given ByteBuffer. This must include flags and version in case of a full box. byteBuffer has been initialized with getSize() bytes.

Specified by:

getContent in class AbstractBox

Parameters:

byteBuffer - the sink for the box's content

_parseDetails

public void _parseDetails(ByteBuffer content)

Description copied from class: AbstractBox

Parse the box's fields and child boxes if any.

Specified by:

_parseDetails in class AbstractBox

Parameters:

content - the box's raw content beginning after the 4-cc field.

getOffsetSize

public int getOffsetSize()

setOffsetSize

public void setOffsetSize(int offsetSize)

getLengthSize

public int getLengthSize()

setLengthSize

public void setLengthSize(int lengthSize)

getBaseOffsetSize

public int getBaseOffsetSize()

setBaseOffsetSize

public void setBaseOffsetSize(int baseOffsetSize)

getIndexSize

public int getIndexSize()

setIndexSize

public void setIndexSize(int indexSize)

getItems

public List<ItemLocationBox.Item> getItems()

setItems

public void setItems(List<ItemLocationBox.Item> items)

createItem

public ItemLocationBox.Item createItem(int itemId,
 int constructionMethod,
 int dataReferenceIndex,
 long baseOffset,
 List<ItemLocationBox.Extent> extents)

createItem

public ItemLocationBox.Item createItem(ByteBuffer bb)

createExtent

public ItemLocationBox.Extent createExtent(long extentOffset,
 long extentLength,
 long extentIndex)

createExtent

public ItemLocationBox.Extent createExtent(ByteBuffer bb)