com.googlecode.mp4parser.boxes.cenc
Class ProtectionSystemSpecificHeaderBox

java.lang.Object
  com.googlecode.mp4parser.AbstractBox
      com.googlecode.mp4parser.AbstractFullBox
          com.googlecode.mp4parser.boxes.cenc.ProtectionSystemSpecificHeaderBox

All Implemented Interfaces:

Box, FullBox

public class ProtectionSystemSpecificHeaderBox
extends AbstractFullBox

This box contains information needed by a Content Protection System to play back the content. The data format is specified by the system identified by the ‘pssh’ parameter SystemID, and is considered opaque for the purposes of this specification.

The data encapsulated in the Data field may be read by the identified Content Protection System to enable decryption key acquisition and decryption of media data. For license/rights-based systems, the header information may include data such as the URL of license server(s) or rights issuer(s) used, embedded licenses/rights, and/or other protection system specific metadata.

A single file may be constructed to be playable by multiple key and digital rights management (DRM) systems, by including one Protection System-Specific Header box for each system supported. Readers that process such presentations must match the SystemID field in this box to the SystemID(s) of the DRM System(s) they support, and select or create the matching Protection System-Specific Header box(es) for storage and retrieval of Protection-Specific information interpreted or created by that DRM system.

Field Summary

static byte[]	OMA2_SYSTEM_ID
static byte[]	PLAYREADY_SYSTEM_ID
static String	TYPE

Fields inherited from class com.googlecode.mp4parser.AbstractBox

type

Constructor Summary

ProtectionSystemSpecificHeaderBox()

Method Summary

protected void	_parseDetails(ByteBuffer content) Parse the box's fields and child boxes if any.
byte[]	getContent()
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.
byte[]	getSystemId()
void	setContent(byte[] content)
void	setSystemId(byte[] systemId)

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, parse, setDeadBytes, setParent

Methods inherited from class java.lang.Object

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

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

getBox, getParent, getSize, getType, parse, setParent

Field Detail

TYPE

public static final String TYPE

See Also:

Constant Field Values

OMA2_SYSTEM_ID

public static byte[] OMA2_SYSTEM_ID

PLAYREADY_SYSTEM_ID

public static byte[] PLAYREADY_SYSTEM_ID

Constructor Detail

ProtectionSystemSpecificHeaderBox

public ProtectionSystemSpecificHeaderBox()

Method Detail

getSystemId

public byte[] getSystemId()

setSystemId

public void setSystemId(byte[] systemId)

getContent

public byte[] getContent()

setContent

public void setContent(byte[] content)

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

protected 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.