net.sf.fmj.media.codec.audio
Class RateConverter

java.lang.Object
  net.sf.fmj.media.AbstractControls
      net.sf.fmj.media.AbstractPlugIn
          net.sf.fmj.media.AbstractCodec
              net.sf.fmj.media.codec.audio.RateConverter

All Implemented Interfaces:

Codec, Controls, PlugIn

public class RateConverter
extends AbstractCodec

Converts between different linear audio formats. Able to change signed/unsigned, endian-ness, bits per sample, sample rate, channels. TODO: optimize. TODO: improve quality of conversions. See for example http://www.fmjsoft.com/atquality.html (name fmjsoft is coincidental). TODO: change stereo to mono by averaging, rather than by omission of 2nd channel. TODO: handle data types besides byte arrays This converter has so many formats that it causes a big slowdown in filter graph building, both for FMJ and JMF.

Author:

Ken Larson

Field Summary

protected Format[]

outputFormats

Fields inherited from class net.sf.fmj.media.AbstractCodec

inputFormat, inputFormats, opened, outputFormat

Fields inherited from interface javax.media.PlugIn

BUFFER_PROCESSED_FAILED, BUFFER_PROCESSED_OK, INPUT_BUFFER_NOT_CONSUMED, OUTPUT_BUFFER_NOT_FILLED, PLUGIN_TERMINATED

Constructor Summary

RateConverter()

Method Summary

void	close()
java.lang.String	getName()
Format[]	getSupportedOutputFormats(Format input)
void	open()
int	process(Buffer inputBuffer, Buffer outputBuffer)
Format	setInputFormat(Format arg0)
Format	setOutputFormat(Format arg0)

Methods inherited from class net.sf.fmj.media.AbstractCodec

checkInputBuffer, dump, getInputFormat, getOutputFormat, getSupportedInputFormats, isEOM, propagateEOM

Methods inherited from class net.sf.fmj.media.AbstractPlugIn

reset

Methods inherited from class net.sf.fmj.media.AbstractControls

addControl, getControl, getControls, removeControl

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.media.PlugIn

reset

Methods inherited from interface javax.media.Controls

getControl, getControls

Field Detail

outputFormats

protected Format[] outputFormats

Constructor Detail

RateConverter

public RateConverter()

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in interface PlugIn

Overrides:

getName in class AbstractPlugIn

getSupportedOutputFormats

public Format[] getSupportedOutputFormats(Format input)

Specified by:

getSupportedOutputFormats in interface Codec

Specified by:

getSupportedOutputFormats in class AbstractCodec

open

public void open()

Specified by:

open in interface PlugIn

Overrides:

open in class AbstractPlugIn

close

public void close()

Specified by:

close in interface PlugIn

Overrides:

close in class AbstractPlugIn

process

public int process(Buffer inputBuffer,
                   Buffer outputBuffer)

Specified by:

process in interface Codec

Specified by:

process in class AbstractCodec

setInputFormat

public Format setInputFormat(Format arg0)

Specified by:

setInputFormat in interface Codec

Overrides:

setInputFormat in class AbstractCodec

setOutputFormat

public Format setOutputFormat(Format arg0)

Specified by:

setOutputFormat in interface Codec

Overrides:

setOutputFormat in class AbstractCodec