org.mmbase.streams.transcoders

Class AnalyzerUtils

java.lang.Object

org.mmbase.streams.transcoders.AnalyzerUtils

All Implemented Interfaces:

Serializable

public final class AnalyzerUtils
extends Object
implements Serializable

Utility methods common for the analyzers that look for several media audio, video and images, that try to extract information, convert nodetypes to the matching kind etc.

Version:

$Id$

Author:

Michiel Meeuwissen, André van Toly

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	AUDIO
static String	AUDIOC
static String	IMAGE
static String	IMAGEC
static String	MEDIA
static String	MEDIAC
static String	VIDEO
static String	VIDEOC

Constructor Summary

Constructors

Constructor and Description
AnalyzerUtils(Logger... loggers)

Method Summary

Modifier and Type	Method and Description
boolean	audio(String l, Node source, Node dest) Looks for audio channel(s).
boolean	dimensions(String l, Node source, Node dest) Looks for width and height when it finds a match for Video, and looks for bitrate after that.
boolean	duration(String l, Node source, Node dest) Matches duration, records that and tries to match bitrate and start on that same line.
void	filelastModified(Node node)
protected void	fixMimeType(String type, Node node) This fixes the first part (f.e.
long	getLength(String l)
long	getStart(String s)
boolean	getUpdateDestination()
boolean	getUpdateSource()
boolean	image(String l, Node source, Node dest)
boolean	image2(String l, Node source, Node dest) Matches on Input and looks for the 'image2' format which indicates that the input is an image.
static Codec	libtoCodec(String str)
boolean	output(String l, Node source, Node dest)
boolean	png(String l, Node source, Node dest) Matches on Input and looks for the 'image2' format which indicates that the input is an image.
void	setUpdateDestination(boolean b)
void	setUpdateSource(boolean b)
void	toAudio(Node source, Node dest)
void	toImage(Node source, Node dest)
void	toVideo(Node source, Node dest)
boolean	unsupported(String l, Node source, Node dest)
boolean	video(String l, Node source, Node dest)

Methods inherited from class java.lang.Object

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

Field Detail

VIDEO

public static final String VIDEO

See Also:

Constant Field Values

AUDIO

public static final String AUDIO

See Also:

Constant Field Values

IMAGE

public static final String IMAGE

See Also:

Constant Field Values

MEDIA

public static final String MEDIA

See Also:

Constant Field Values

VIDEOC

public static final String VIDEOC

See Also:

Constant Field Values

AUDIOC

public static final String AUDIOC

See Also:

Constant Field Values

IMAGEC

public static final String IMAGEC

See Also:

Constant Field Values

MEDIAC

public static final String MEDIAC

See Also:

Constant Field Values

Constructor Detail

AnalyzerUtils

AnalyzerUtils(Logger... loggers)

Method Detail

setUpdateSource

public void setUpdateSource(boolean b)

getUpdateSource

public boolean getUpdateSource()

setUpdateDestination

public void setUpdateDestination(boolean b)

getUpdateDestination

public boolean getUpdateDestination()

fixMimeType

protected void fixMimeType(String type,
                           Node node)

This fixes the first part (f.e. audio/*) when needed, not the complete MimeType.

To Do:

Should this perhaps be arranged in the respective builders themselves. It seems a requirement of videosources to have a video/* mimetype

toVideo

public void toVideo(Node source,
                    Node dest)

toAudio

public void toAudio(Node source,
                    Node dest)

toImage

public void toImage(Node source,
                    Node dest)

getLength

public long getLength(String l)

getStart

public long getStart(String s)

unsupported

public boolean unsupported(String l,
                           Node source,
                           Node dest)

output

public boolean output(String l,
                      Node source,
                      Node dest)

duration

public boolean duration(String l,
                        Node source,
                        Node dest)

Matches duration, records that and tries to match bitrate and start on that same line.

video

public boolean video(String l,
                     Node source,
                     Node dest)

image2

public boolean image2(String l,
                      Node source,
                      Node dest)

Matches on Input and looks for the 'image2' format which indicates that the input is an image.

png

public boolean png(String l,
                   Node source,
                   Node dest)

Matches on Input and looks for the 'image2' format which indicates that the input is an image.

image

public boolean image(String l,
                     Node source,
                     Node dest)

dimensions

public boolean dimensions(String l,
                          Node source,
                          Node dest)

Looks for width and height when it finds a match for Video, and looks for bitrate after that. Works also for images.

audio

public boolean audio(String l,
                     Node source,
                     Node dest)

Looks for audio channel(s).

filelastModified

public void filelastModified(Node node)

libtoCodec

public static Codec libtoCodec(String str)