org.jitsi.impl.neomedia.codec.video.vp8

Class VPXEncoder

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.video.vp8.VPXEncoder

All Implemented Interfaces:

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

public class VPXEncoder
extends AbstractCodec2

Implements a VP8 encoder.

Author:

Boris Grozev

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 and Description
VPXEncoder() Initializes a new VPXEncoder instance.

Method Summary

Modifier and Type	Method and 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 inputBuffer, javax.media.Buffer outputBuffer) Encodes the frame in inputBuffer (in YUVFormat) into a VP8 frame (in outputBuffer)
protected javax.media.Format[]	getMatchingOutputFormats(javax.media.Format inputFormat) Gets the matching output formats for a specific format.
javax.media.Format	setInputFormat(javax.media.Format format) Sets the input format.
javax.media.Format	setOutputFormat(javax.media.Format format) Sets the Format in which this Codec is to output media data.

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.PlugIn

reset

Methods inherited from interface javax.media.Controls

getControl, getControls

Constructor Detail

VPXEncoder

public VPXEncoder()

Initializes a new VPXEncoder instance.

Method Detail

doClose

protected void doClose()

Specified by:

doClose in class AbstractCodec2

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

doProcess

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

Encodes the frame in inputBuffer (in YUVFormat) into a VP8 frame (in outputBuffer)

Specified by:

doProcess in class AbstractCodec2

Parameters:

inputBuffer - input Buffer

outputBuffer - output Buffer

Returns:

BUFFER_PROCESSED_OK if inBuffer has been successfully processed

getMatchingOutputFormats

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

Gets the matching output formats for a specific format.

Overrides:

getMatchingOutputFormats in class AbstractCodec2

Parameters:

inputFormat - input format

Returns:

array of formats matching input format

setInputFormat

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

Sets the input format.

Specified by:

setInputFormat in interface javax.media.Codec

Overrides:

setInputFormat in class AbstractCodec2

Parameters:

format - format to set

Returns:

format

setOutputFormat

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

Sets the Format in which this Codec is to output media data.

Specified by:

setOutputFormat in interface javax.media.Codec

Overrides:

setOutputFormat in class AbstractCodec2

Parameters:

format - the Format in which this Codec is to output media data

Returns:

the Format in which this Codec is currently configured to output media data or null if format was found to be incompatible with this Codec