com.coremedia.iso.boxes
Class SampleDescriptionBox

java.lang.Object
  com.googlecode.mp4parser.AbstractBox
      com.googlecode.mp4parser.AbstractFullBox
          com.googlecode.mp4parser.FullContainerBox
              com.coremedia.iso.boxes.SampleDescriptionBox

All Implemented Interfaces:

Box, ContainerBox, FullBox

public class SampleDescriptionBox
extends FullContainerBox

The sample description table gives detailed information about the coding type used, and any initialization information needed for that coding.
The information stored in the sample description box after the entry-count is both track-type specific as documented here, and can also have variants within a track type (e.g. different codings may use different specific information after some common fields, even within a video track).
For video tracks, a VisualSampleEntry is used; for audio tracks, an AudioSampleEntry. Hint tracks use an entry format specific to their protocol, with an appropriate name. Timed Text tracks use a TextSampleEntry For hint tracks, the sample description contains appropriate declarative data for the streaming protocol being used, and the format of the hint track. The definition of the sample description is specific to the protocol. Multiple descriptions may be used within a track.
The 'protocol' and 'codingname' fields are registered identifiers that uniquely identify the streaming protocol or compression format decoder to be used. A given protocol or codingname may have optional or required extensions to the sample description (e.g. codec initialization parameters). All such extensions shall be within boxes; these boxes occur after the required fields. Unrecognized boxes shall be ignored.
Defined in ISO/IEC 14496-12

See Also:

VisualSampleEntry, TextSampleEntry, AudioSampleEntry

Field Summary

static String

TYPE

Fields inherited from class com.googlecode.mp4parser.FullContainerBox

boxes

Fields inherited from class com.googlecode.mp4parser.AbstractBox

type

Constructor Summary

SampleDescriptionBox()

Method Summary

void	_parseDetails(ByteBuffer content) Parse the box's fields and child boxes if any.
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.
SampleEntry	getSampleEntry()

Methods inherited from class com.googlecode.mp4parser.FullContainerBox

addBox, getBoxes, getBoxes, getBoxes, getNumOfBytesToFirstChild, parse, parseChildBoxes, removeBox, setBoxes, toString, writeChildBoxes

Methods inherited from class com.googlecode.mp4parser.AbstractFullBox

getFlags, getVersion, parseVersionAndFlags, setFlags, setVersion, writeVersionAndFlags

Methods inherited from class com.googlecode.mp4parser.AbstractBox

getBox, getIsoFile, getParent, getSize, getType, getUserType, isParsed, setDeadBytes, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.coremedia.iso.boxes.ContainerBox

getIsoFile, getParent

Methods inherited from interface com.coremedia.iso.boxes.Box

getBox, getSize, getType, setParent

Field Detail

TYPE

public static final String TYPE

See Also:

Constant Field Values

Constructor Detail

SampleDescriptionBox

public SampleDescriptionBox()

Method Detail

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.

Overrides:

getContentSize in class FullContainerBox

Returns:

Gets the box's content size in bytes

See Also:

AbstractBox.getContent(java.nio.ByteBuffer)

_parseDetails

public void _parseDetails(ByteBuffer content)

Description copied from class: AbstractBox

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

Overrides:

_parseDetails in class FullContainerBox

Parameters:

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

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.

Overrides:

getContent in class FullContainerBox

Parameters:

byteBuffer - the sink for the box's content

getSampleEntry

public SampleEntry getSampleEntry()