Class WebPChunkVp8l

java.lang.Object

org.apache.commons.imaging.common.BinaryFileParser

org.apache.commons.imaging.formats.webp.chunks.AbstractWebPChunk

org.apache.commons.imaging.formats.webp.chunks.WebPChunkVp8l

public final class WebPChunkVp8l
extends AbstractWebPChunk

VP8L (lossless bitstream) chunk.

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                      ChunkHeader('VP8L')                      |
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
:                           VP8L data                           :
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Since:

1.0.0-alpha4

See Also:

• Simple File Format (Lossless)

Field Summary

Fields

Modifier and Type	Field	Description
private final boolean	hasAlpha
private final int	imageHeight
private final int	imageWidth
private final int	versionNumber

Fields inherited from class AbstractWebPChunk

bytes

Constructor Summary

Constructors

Constructor	Description
WebPChunkVp8l(int type, int size, byte[] bytes)	Create a VP8L chunk.

Method Summary

Modifier and Type	Method	Description
void	dump(PrintWriter pw, int offset)	Print the chunk to the given stream.
int	getImageHeight()
int	getImageWidth()
int	getVersionNumber()
boolean	hasAlpha()

Methods inherited from class AbstractWebPChunk

getBytes, getChunkSize, getPayloadSize, getType, getTypeDescription

Methods inherited from class BinaryFileParser

debugNumber, debugNumber, getByteOrder, setByteOrder

Methods inherited from class Object

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

Field Details

imageWidth

private final int imageWidth

imageHeight

private final int imageHeight

hasAlpha

private final boolean hasAlpha

versionNumber

private final int versionNumber

Constructor Details

WebPChunkVp8l

public WebPChunkVp8l(int type,
 int size,
 byte[] bytes)
              throws ImagingException

Create a VP8L chunk.

Parameters:

type - chunk type.

size - chunk size.

bytes - chunk data.

Throws:

ImagingException - if the chunk data and the size provided do not match.

Method Details

dump

public void dump(PrintWriter pw,
 int offset)
          throws ImagingException,
IOException

Description copied from class: AbstractWebPChunk

Print the chunk to the given stream.

Overrides:

dump in class AbstractWebPChunk

Parameters:

pw - a stream to write to.

offset - chunk offset.

Throws:

ImagingException - if the image is invalid.

IOException - if it fails to write to the given stream.

getImageHeight

public int getImageHeight()

Returns:

the image height.

getImageWidth

public int getImageWidth()

Returns:

the image width.

getVersionNumber

public int getVersionNumber()

Returns:

the version number.

hasAlpha

public boolean hasAlpha()

Returns:

whether the image has an alpha channel or not.