net.java.sip.communicator.impl.neomedia.codec.audio.speex
Class SpeexResampler

java.lang.Object
  net.sf.fmj.media.AbstractControls
      net.sf.fmj.media.AbstractPlugIn
          net.sf.fmj.media.AbstractCodec
              net.java.sip.communicator.impl.neomedia.codec.AbstractCodecExt
                  net.java.sip.communicator.impl.neomedia.codec.audio.speex.SpeexResampler

All Implemented Interfaces:

javax.media.Codec, javax.media.Controls, javax.media.PlugIn

public class SpeexResampler
extends AbstractCodecExt

Implements an audio resampler using Speex.

Author:

Lyubomir Marinov

Field Summary

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

SpeexResampler()
Initializes a new SpeexResampler instance.

Method Summary

protected void	doClose()
protected void	doOpen() Opens this Codec and acquires the resources that it needs to operate.
protected int	doProcess(javax.media.Buffer inputBuffer, javax.media.Buffer outputBuffer) Resamples audio from a specific input Buffer into a specific output Buffer.
protected javax.media.Format[]	getMatchingOutputFormats(javax.media.Format inputFormat) Get the output formats matching a specific input format.
javax.media.Format	setInputFormat(javax.media.Format format) Sets the Format of the media data to be input for processing in this Codec.

Methods inherited from class net.java.sip.communicator.impl.neomedia.codec.AbstractCodecExt

close, discardOutputBuffer, getName, getSupportedOutputFormats, matches, open, process, setOutputFormat, updateOutput, validateByteArraySize, validateShortArraySize

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

Constructor Detail

SpeexResampler

public SpeexResampler()

Initializes a new SpeexResampler instance.

Method Detail

doClose

protected void doClose()

Specified by:

doClose in class AbstractCodecExt

See Also:

AbstractCodecExt.doClose()

doOpen

protected void doOpen()
               throws javax.media.ResourceUnavailableException

Opens this Codec and acquires the resources that it needs to operate. A call to PlugIn.open() on this instance will result in a call to doOpen only if AbstractCodec.opened is false. All required input and/or output formats are assumed to have been set on this Codec before doOpen is called.

Specified by:

doOpen in class AbstractCodecExt

Throws:

javax.media.ResourceUnavailableException - if any of the resources that this Codec needs to operate cannot be acquired

See Also:

AbstractCodecExt.doOpen()

doProcess

protected int doProcess(javax.media.Buffer inputBuffer,
                        javax.media.Buffer outputBuffer)

Resamples audio from a specific input Buffer into a specific output Buffer.

Specified by:

doProcess in class AbstractCodecExt

Parameters:

inputBuffer - input Buffer

outputBuffer - output Buffer

Returns:

BUFFER_PROCESSED_OK if inputBuffer has been successfully processed

See Also:

AbstractCodecExt.doProcess(Buffer, Buffer)

getMatchingOutputFormats

protected javax.media.Format[] getMatchingOutputFormats(javax.media.Format inputFormat)

Get the output formats matching a specific input format.

Overrides:

getMatchingOutputFormats in class AbstractCodecExt

Parameters:

inputFormat - the input format to get the matching output formats of

Returns:

the output formats matching the specified input format

See Also:

AbstractCodecExt.getMatchingOutputFormats(Format)

setInputFormat

public javax.media.Format setInputFormat(javax.media.Format format)

Sets the Format of the media data to be input for processing in this Codec.

Specified by:

setInputFormat in interface javax.media.Codec

Overrides:

setInputFormat in class AbstractCodecExt

Parameters:

format - the Format of the media data to be input for processing in this Codec

Returns:

the Format of the media data to be input for processing in this Codec if format is compatible with this Codec; otherwise, null

See Also:

AbstractCodecExt.setInputFormat(Format)