org.mp4parser.boxes.samplegrouping

Class SampleGroupDescriptionBox

java.lang.Object

org.mp4parser.support.AbstractBox

org.mp4parser.support.AbstractFullBox

org.mp4parser.boxes.samplegrouping.SampleGroupDescriptionBox

All Implemented Interfaces:

Box, FullBox, ParsableBox

public class SampleGroupDescriptionBox
extends AbstractFullBox

4cc = ""sgpd""

This description table gives information about the characteristics of sample groups. The descriptive information is any other information needed to define or characterize the sample group.

There may be multiple instances of this box if there is more than one sample grouping for the samples in a track. Each instance of the SampleGroupDescription box has a type code that distinguishes different sample groupings. Within a track, there shall be at most one instance of this box with a particular grouping type. The associated SampleToGroup shall indicate the same value for the grouping type.

The information is stored in the sample group description box after the entry-count. An abstract entry type is defined and sample groupings shall define derived types to represent the description of each sample group. For video tracks, an abstract VisualSampleGroupEntry is used with similar types for audio and hint tracks.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TYPE

Fields inherited from class org.mp4parser.support.AbstractBox

content, type

Constructor Summary

Constructors

Constructor and Description
SampleGroupDescriptionBox()

Method Summary

Modifier and Type	Method and Description
protected void	_parseDetails(java.nio.ByteBuffer content) Parse the box's fields and child boxes if any.
boolean	equals(java.lang.Object o)
protected void	getContent(java.nio.ByteBuffer byteBuffer) Write the box's content into the given ByteBuffer.
protected long	getContentSize() Get the box's content size without its header.
int	getDefaultLength()
java.util.List<GroupEntry>	getGroupEntries()
java.lang.String	getGroupingType()
int	hashCode()
void	setDefaultLength(int defaultLength)
void	setGroupEntries(java.util.List<GroupEntry> groupEntries)
void	setGroupingType(java.lang.String groupingType)
java.lang.String	toString()

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, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.mp4parser.ParsableBox

parse

Methods inherited from interface org.mp4parser.Box

getBox, getSize, getType

Field Detail

TYPE

public static final java.lang.String TYPE

See Also:

Constant Field Values

Constructor Detail

SampleGroupDescriptionBox

public SampleGroupDescriptionBox()

Method Detail

getGroupingType

public java.lang.String getGroupingType()

setGroupingType

public void setGroupingType(java.lang.String groupingType)

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(java.nio.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

protected void _parseDetails(java.nio.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.

getDefaultLength

public int getDefaultLength()

setDefaultLength

public void setDefaultLength(int defaultLength)

getGroupEntries

public java.util.List<GroupEntry> getGroupEntries()

setGroupEntries

public void setGroupEntries(java.util.List<GroupEntry> groupEntries)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object