net.java.sip.communicator.impl.neomedia.codec.video
Class SwScaler

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.video.SwScaler

All Implemented Interfaces:

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

public class SwScaler
extends net.sf.fmj.media.AbstractCodec

Implements a Codec which uses libswscale to scale images and convert between color spaces (typically, RGB and YUV).

Author:

Sebastien Vincent, 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

	SwScaler() Initializes a new SwScaler instance which doesn't have an output size and will use a default one when it becomes necessary unless an explicit one is specified in the meantime.
protected	SwScaler(boolean fixOddYuv420Size) Initializes a new SwScaler instance which can optionally attempt to keep the width and height of YUV 420 output even.

Method Summary

void	close() Close codec.
javax.media.Format	getInputFormat() Gets the Format in which this Codec is currently configured to accept input media data.
static int	getNativeRGBFormat(javax.media.format.RGBFormat rgb) Gets native (FFmpeg) RGB format.
Dimension	getOutputSize() Gets the output size.
javax.media.Format[]	getSupportedOutputFormats(javax.media.Format input) Gets the supported output formats for an input one.
int	process(javax.media.Buffer input, javax.media.Buffer output) Processes (converts color space and/or scales) a buffer.
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.
void	setOutputSize(Dimension size) Sets the output size.

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

checkInputBuffer, dump, getOutputFormat, getSupportedInputFormats, isEOM, propagateEOM

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

getName, open, 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

getName, open, reset

Methods inherited from interface javax.media.Controls

getControl, getControls

Constructor Detail

SwScaler

public SwScaler()

Initializes a new SwScaler instance which doesn't have an output size and will use a default one when it becomes necessary unless an explicit one is specified in the meantime.

SwScaler

protected SwScaler(boolean fixOddYuv420Size)

Initializes a new SwScaler instance which can optionally attempt to keep the width and height of YUV 420 output even.

Parameters:

fixOddYuv420Size - true to keep the width and height of YUV 420 output even; otherwise, false

Method Detail

close

public void close()

Close codec.

Specified by:

close in interface javax.media.PlugIn

Overrides:

close in class net.sf.fmj.media.AbstractPlugIn

getInputFormat

public javax.media.Format getInputFormat()

Gets the Format in which this Codec is currently configured to accept input media data.

Makes the protected super implementation public.

Overrides:

getInputFormat in class net.sf.fmj.media.AbstractCodec

Returns:

the Format in which this Codec is currently configured to accept input media data

See Also:

AbstractCodec.getInputFormat()

getNativeRGBFormat

public static int getNativeRGBFormat(javax.media.format.RGBFormat rgb)

Gets native (FFmpeg) RGB format.

Parameters:

rgb - JMF RGBFormat

Returns:

native RGB format

getOutputSize

public Dimension getOutputSize()

Gets the output size.

Returns:

the output size

getSupportedOutputFormats

public javax.media.Format[] getSupportedOutputFormats(javax.media.Format input)

Gets the supported output formats for an input one.

Specified by:

getSupportedOutputFormats in interface javax.media.Codec

Specified by:

getSupportedOutputFormats in class net.sf.fmj.media.AbstractCodec

Parameters:

input - input format to get supported output ones for

Returns:

array of supported output formats

process

public int process(javax.media.Buffer input,
                   javax.media.Buffer output)

Processes (converts color space and/or scales) a buffer.

Specified by:

process in interface javax.media.Codec

Specified by:

process in class net.sf.fmj.media.AbstractCodec

Parameters:

input - input buffer

output - output buffer

Returns:

BUFFER_PROCESSED_OK if buffer has been successfully processed

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 net.sf.fmj.media.AbstractCodec

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 net.sf.fmj.media.AbstractCodec

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

setOutputSize

public void setOutputSize(Dimension size)

Sets the output size.

Parameters:

size - the size to set as the output size