org.apache.shindig.gadgets.rewrite.image

Class OptimizerConfig

java.lang.Object

org.apache.shindig.gadgets.rewrite.image.OptimizerConfig

public class OptimizerConfig
extends Object

Configuration settings for the optimizer

Constructor Summary

Constructors

Constructor and Description
OptimizerConfig() Defaults for usage in tests.
OptimizerConfig(int maxInMemoryBytes, int maxPaletteSize, boolean jpegConversionAllowed, float jpegCompression, int minThresholdBytes, boolean jpegHuffmanOptimization, boolean jpegRetainSubsampling)

Method Summary

Methods

Modifier and Type	Method and Description
float	getJpegCompression() The compression ratio to use when compressing JPEG images A value between 0.5 and 0.9.
boolean	getJpegHuffmanOptimization() Indicate if we want to do huffman optimization while enocding the jpeg's.
boolean	getJpegRetainSubsampling() Indicate if we want to do retian original jpeg subsampling while encoding the jpeg's.
int	getMaxInMemoryBytes() The maximum allowed in-memory size of a parsed image.
int	getMaxPaletteSize() The maximum no.
int	getMinThresholdBytes() The threshold in bytes below which we do not attempt to rewite an image.
boolean	isJpegConversionAllowed() Allow conversion from and to JPEG for other image types that are fully opaque.

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimizerConfig

@Inject
public OptimizerConfig(int maxInMemoryBytes,
                      int maxPaletteSize,
                      boolean jpegConversionAllowed,
                      float jpegCompression,
                      int minThresholdBytes,
                      boolean jpegHuffmanOptimization,
                      boolean jpegRetainSubsampling)

OptimizerConfig

public OptimizerConfig()

Defaults for usage in tests.

Method Detail

getMaxInMemoryBytes

public int getMaxInMemoryBytes()

The maximum allowed in-memory size of a parsed image. Used to protect system from very large memory allocations

getMaxPaletteSize

public int getMaxPaletteSize()

The maximum no. of palette entries to create when attempting to palettize an image before quitting.

isJpegConversionAllowed

public boolean isJpegConversionAllowed()

Allow conversion from and to JPEG for other image types that are fully opaque.

getJpegCompression

public float getJpegCompression()

The compression ratio to use when compressing JPEG images A value between 0.5 and 0.9.

getMinThresholdBytes

public int getMinThresholdBytes()

The threshold in bytes below which we do not attempt to rewite an image. Value should be chosen based on knowledge of MTU sizes

getJpegHuffmanOptimization

public boolean getJpegHuffmanOptimization()

Indicate if we want to do huffman optimization while enocding the jpeg's.

getJpegRetainSubsampling

public boolean getJpegRetainSubsampling()

Indicate if we want to do retian original jpeg subsampling while encoding the jpeg's.