Package org.jitsi.impl.neomedia.codec.audio.opus

Class JNIDecoder

java.lang.Object

net.sf.fmj.media.AbstractControls

net.sf.fmj.media.AbstractPlugIn

net.sf.fmj.media.AbstractCodec

org.jitsi.impl.neomedia.codec.AbstractCodec2

org.jitsi.impl.neomedia.codec.audio.opus.JNIDecoder

All Implemented Interfaces:

javax.media.Codec, javax.media.Control, javax.media.Controls, javax.media.PlugIn, FECDecoderControl

public class JNIDecoder
extends AbstractCodec2
implements FECDecoderControl

Implements an Opus decoder.

Author:

Boris Grozev, Lyubomir Marinov

Field Summary

Fields inherited from class org.jitsi.impl.neomedia.codec.AbstractCodec2

BUFFER_FLAG_FEC, BUFFER_FLAG_PLC, EMPTY_FORMATS, features, MAX_AUDIO_SEQUENCE_NUMBERS_TO_PLC, SEQUENCE_MAX, SEQUENCE_MIN

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

Constructors

Constructor	Description
JNIDecoder()	Initializes a new JNIDecoder instance.

Method Summary

Modifier and Type	Method	Description
protected void	doClose()
protected void	doOpen()	Opens this Codec and acquires the resources that it needs to operate.
protected int	doProcess(javax.media.Buffer inBuf, javax.media.Buffer outBuf)	Decodes an Opus packet.
int	fecPacketsDecoded()	Returns the number of packets decoded with FEC.
Component	getControlComponent()	Implements Control.getControlComponent().
protected javax.media.Format[]	getMatchingOutputFormats(javax.media.Format inputFormat)	Gets the Formats which are supported by this Codec as output when the input is in a specific Format.
javax.media.Format	setInputFormat(javax.media.Format format)	Makes sure that the outputFormat of this instance is in accord with the inputFormat of this instance.
javax.media.Format	setOutputFormat(javax.media.Format format)

Methods inherited from class org.jitsi.impl.neomedia.codec.AbstractCodec2

calculateLostSeqNoCount, close, discardOutputBuffer, getName, getSupportedOutputFormats, incrementSeqNo, matches, open, process, specialize, 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.Controls

getControl, getControls

Methods inherited from interface javax.media.PlugIn

reset

Constructor Detail

JNIDecoder

public JNIDecoder()

Initializes a new JNIDecoder instance.

Method Detail

doClose

protected void doClose()

Specified by:

doClose in class AbstractCodec2

See Also:

AbstractCodec2.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 AbstractCodec2

Throws:

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

See Also:

AbstractCodec2.doOpen()

doProcess

protected int doProcess(javax.media.Buffer inBuf,
                        javax.media.Buffer outBuf)

Decodes an Opus packet.

Specified by:

doProcess in class AbstractCodec2

fecPacketsDecoded

public int fecPacketsDecoded()

Returns the number of packets decoded with FEC.

Specified by:

fecPacketsDecoded in interface FECDecoderControl

Returns:

the number of packets decoded with FEC

getControlComponent

public Component getControlComponent()

Implements Control.getControlComponent(). JNIDecoder does not provide user interface of its own.

Specified by:

getControlComponent in interface javax.media.Control

Returns:

null to signify that JNIDecoder does not provide user interface of its own

getMatchingOutputFormats

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

Gets the Formats which are supported by this Codec as output when the input is in a specific Format.

Overrides:

getMatchingOutputFormats in class AbstractCodec2

Parameters:

inputFormat - the Format of the input for which the supported output Formats are to be returned

Returns:

an array of Formats supported by this Codec as output when the input is in the specified inputFormat

setInputFormat

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

Makes sure that the outputFormat of this instance is in accord with the inputFormat of this instance.

Specified by:

setInputFormat in interface javax.media.Codec

Overrides:

setInputFormat in class AbstractCodec2

setOutputFormat

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

Specified by:

setOutputFormat in interface javax.media.Codec

Overrides:

setOutputFormat in class AbstractCodec2