Package org.apache.commons.imaging.formats.png

Class PngConstants

java.lang.Object

org.apache.commons.imaging.formats.png.PngConstants

public final class PngConstants
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	COMPRESSION_DEFLATE_INFLATE
static final byte	COMPRESSION_TYPE_INFLATE_DEFLATE
static final byte	FILTER_METHOD_ADAPTIVE
static final String	PARAM_KEY_PNG_COMPRESSION_LEVEL	Parameter key.
static final BinaryConstant	PNG_SIGNATURE
static final String	XMP_KEYWORD

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

COMPRESSION_DEFLATE_INFLATE

public static final int COMPRESSION_DEFLATE_INFLATE

See Also:

• Constant Field Values

PNG_SIGNATURE

public static final BinaryConstant PNG_SIGNATURE

COMPRESSION_TYPE_INFLATE_DEFLATE

public static final byte COMPRESSION_TYPE_INFLATE_DEFLATE

See Also:

• Constant Field Values

FILTER_METHOD_ADAPTIVE

public static final byte FILTER_METHOD_ADAPTIVE

See Also:

• Constant Field Values

XMP_KEYWORD

public static final String XMP_KEYWORD

See Also:

• Constant Field Values

PARAM_KEY_PNG_COMPRESSION_LEVEL

public static final String PARAM_KEY_PNG_COMPRESSION_LEVEL

Parameter key. Used to indicate the PNG compression level to be used.

For valid values, see Deflater. If no value is specified, it will use the default compression level.

See Also:

• Deflater
• Constant Field Values