org.mmbase.streams.thumbnails

Class ThumbNailFunction

java.lang.Object

org.mmbase.util.functions.AbstractFunction<R>

org.mmbase.util.functions.NodeFunction<Node>

org.mmbase.streams.thumbnails.ThumbNailFunction

All Implemented Interfaces:

Serializable, Comparable<Function<Node>>, Function<Node>

public class ThumbNailFunction
extends NodeFunction<Node>

Function on mediafragments (videofragments really) to make thumbnails of video streams. It uses a timeout to wait for the results of WaitFunction so it can produce a default image (alias 'default_video_thumbnail') if an exception occurs.

Version:

$Id$

Author:

Michiel Meeuwissen

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Parameter<Long>	OFFSET
static Parameter[]	PARAMETERS
static Parameter<Integer>	TIMEOUT
static Parameter<Boolean>	WAIT

Fields inherited from class org.mmbase.util.functions.AbstractFunction

autoReturnType, name, returnType

Constructor Summary

Constructors

Constructor and Description
ThumbNailFunction()

Method Summary

Modifier and Type	Method and Description
protected static Node	getDefault(Cloud cloud)
protected Node	getFunctionValue(Node node, Parameters parameters)
protected static Node	getSourceNode(Node node)
(package private) static Node	getThumbNail(Node node, Long offset)

Methods inherited from class org.mmbase.util.functions.NodeFunction

getFunctionNameAndFillArgs, getFunctionValue, getFunctionValue, getFunctionValueForNode, getNode, getNodeParameterDef, getReturnType, newInstance, wrap

Methods inherited from class org.mmbase.util.functions.AbstractFunction

compareTo, createParameters, equals, getDescription, getFunctionValueWithList, getName, getParameterDefinition, hashCode, setDescription, setParameterDefinition, setReturnType, toString

Methods inherited from class java.lang.Object

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

Field Detail

OFFSET

public static final Parameter<Long> OFFSET

WAIT

public static final Parameter<Boolean> WAIT

TIMEOUT

public static final Parameter<Integer> TIMEOUT

PARAMETERS

public static final Parameter[] PARAMETERS

Constructor Detail

ThumbNailFunction

public ThumbNailFunction()

Method Detail

getSourceNode

protected static Node getSourceNode(Node node)

getDefault

protected static Node getDefault(Cloud cloud)

getThumbNail

static Node getThumbNail(Node node,
                         Long offset)

getFunctionValue

protected Node getFunctionValue(Node node,
                                Parameters parameters)

Specified by:

getFunctionValue in class NodeFunction<Node>