org.mmbase.streams.transcoders
Class FFMpegAnalyzer

java.lang.Object
  org.mmbase.streams.transcoders.FFMpegAnalyzer

All Implemented Interfaces:

Serializable, Cloneable, Analyzer, PublicCloneable<Analyzer>

public class FFMpegAnalyzer
extends Object
implements Analyzer

An implementation of Analyzer that uses FFmpeg to analyze files. It tries to recognize images, audio and video - in that order. FFmpeg reports various information when you throw a file at it with 'ffmpeg -i file.ext' some of these lines are examined f.e.:

  Input #0, wav, from 'basic.wav':
    Duration: 00:00:02.94, bitrate: 384 kb/s
      Stream #0.0: Audio: pcm_s24le, 8000 Hz, 2 channels, s16, 384 kb/s
 

Version:

$Id: FFMpegAnalyzer.java 42366 2010-06-01 14:55:52Z andre $

Author:

Michiel Meeuwissen, André van Toly

See Also:

Serialized Form

Constructor Summary

FFMpegAnalyzer()

Method Summary

void	addLogger(Logger logger)
void	addThrowable(Throwable t)
void	analyze(String l, Node source, Node des) Analyzes a line of logging of
FFMpegAnalyzer	clone()
int	getMaxLines() How many lines of logging should be offered for Analyzer.analyze(java.lang.String, org.mmbase.bridge.Node, org.mmbase.bridge.Node)ing at the most.
void	ready(Node sourceNode, Node destNode)
void	setUpdateSource(boolean b)

Methods inherited from class java.lang.Object

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

Constructor Detail

FFMpegAnalyzer

public FFMpegAnalyzer()

Method Detail

setUpdateSource

public void setUpdateSource(boolean b)

addThrowable

public void addThrowable(Throwable t)

Specified by:

addThrowable in interface Analyzer

getMaxLines

public int getMaxLines()

Description copied from interface: Analyzer

How many lines of logging should be offered for Analyzer.analyze(java.lang.String, org.mmbase.bridge.Node, org.mmbase.bridge.Node)ing at the most.

Specified by:

getMaxLines in interface Analyzer

addLogger

public void addLogger(Logger logger)

Specified by:

addLogger in interface Analyzer

analyze

public void analyze(String l,
                    Node source,
                    Node des)

Description copied from interface: Analyzer

Analyzes a line of logging of

Specified by:

analyze in interface Analyzer

Parameters:

l - This line

source - The node representing the original mediasource.

des - The node representing the mediasource to which the transcoding result is being written.

ready

public void ready(Node sourceNode,
                  Node destNode)

Specified by:

ready in interface Analyzer

clone

public FFMpegAnalyzer clone()

Specified by:

clone in interface PublicCloneable<Analyzer>

Overrides:

clone in class Object