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

Class WebPChunkAlph

java.lang.Object

org.apache.commons.imaging.common.BinaryFileParser

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

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

public final class WebPChunkAlph
extends AbstractWebPChunk

ALPH (alpha) 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('ALPH')                      |
 |                                                               |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |Rsv| P | F | C |     Alpha Bitstream...                        |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 

Since:

1.0.0-alpha4

See Also:

Extended File Format#Alpha

Field Summary

Fields inherited from class org.apache.commons.imaging.formats.webp.chunks.AbstractWebPChunk

bytes

Constructor Summary

Constructors

Constructor	Description
WebPChunkAlph(int type, int size, byte[] bytes)	Create an ALPH chunk.

Method Summary

Methods inherited from class org.apache.commons.imaging.formats.webp.chunks.AbstractWebPChunk

dump, getBytes, getChunkSize, getPayloadSize, getType, getTypeDescription

Methods inherited from class org.apache.commons.imaging.common.BinaryFileParser

debugNumber, debugNumber, getByteOrder, setByteOrder

Methods inherited from class java.lang.Object

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

Constructor Detail

WebPChunkAlph

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

Create an ALPH chunk.

Parameters:

type - chunk type.

size - chunk size.

bytes - chunk data.

Throws:

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