Class TIFFJPEGDecompressor
- java.lang.Object
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- com.github.jaiimageio.plugins.tiff.TIFFDecompressor
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- com.github.jaiimageio.impl.plugins.tiff.TIFFJPEGDecompressor
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- Direct Known Subclasses:
TIFFOldJPEGDecompressor
public class TIFFJPEGDecompressor extends TIFFDecompressor
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Field Summary
Fields Modifier and Type Field Description private byte[]
data
private static boolean
DEBUG
protected static int
EOI
protected boolean
hasJPEGTables
protected javax.imageio.ImageReadParam
JPEGParam
protected javax.imageio.ImageReader
JPEGReader
protected static int
SOI
protected byte[]
tables
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Fields inherited from class com.github.jaiimageio.plugins.tiff.TIFFDecompressor
activeSrcHeight, activeSrcMinX, activeSrcMinY, activeSrcWidth, bitsPerSample, byteCount, colorConverter, colorMap, compression, destinationBands, dstHeight, dstMinX, dstMinY, dstWidth, dstXOffset, dstYOffset, extraSamples, image, metadata, offset, photometricInterpretation, planar, rawImage, reader, sampleFormat, samplesPerPixel, sourceBands, sourceXOffset, sourceYOffset, srcHeight, srcMinX, srcMinY, srcWidth, stream, subsampleX, subsampleY
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Constructor Summary
Constructors Constructor Description TIFFJPEGDecompressor()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
beginDecoding()
This routine is called prior to a sequence of calls to thedecode
method, in order to allow any necessary tables or other structures to be initialized based on metadata values.void
decodeRaw(byte[] b, int dstOffset, int bitsPerPixel, int scanlineStride)
Decodes the source data into the providedbyte
arrayb
, starting at the offset given bydstOffset
.protected void
finalize()
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Methods inherited from class com.github.jaiimageio.plugins.tiff.TIFFDecompressor
createRawImage, decode, decodeRaw, decodeRaw, decodeRaw, getRawImageType, getRawImageTypeSpecifier, setActiveSrcHeight, setActiveSrcMinX, setActiveSrcMinY, setActiveSrcWidth, setBitsPerSample, setByteCount, setColorConverter, setColorMap, setCompression, setDestinationBands, setDstHeight, setDstMinX, setDstMinY, setDstWidth, setDstXOffset, setDstYOffset, setExtraSamples, setImage, setMetadata, setOffset, setPhotometricInterpretation, setPlanar, setReader, setSampleFormat, setSamplesPerPixel, setSourceBands, setSourceXOffset, setSourceYOffset, setSrcHeight, setSrcMinX, setSrcMinY, setSrcWidth, setStream, setSubsampleX, setSubsampleY
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Field Detail
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DEBUG
private static final boolean DEBUG
- See Also:
- Constant Field Values
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SOI
protected static final int SOI
- See Also:
- Constant Field Values
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EOI
protected static final int EOI
- See Also:
- Constant Field Values
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JPEGReader
protected javax.imageio.ImageReader JPEGReader
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JPEGParam
protected javax.imageio.ImageReadParam JPEGParam
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hasJPEGTables
protected boolean hasJPEGTables
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tables
protected byte[] tables
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data
private byte[] data
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Method Detail
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beginDecoding
public void beginDecoding()
Description copied from class:TIFFDecompressor
This routine is called prior to a sequence of calls to thedecode
method, in order to allow any necessary tables or other structures to be initialized based on metadata values. This routine is guaranteed to be called any time the metadata values have changed.The default implementation computes tables used by the
decode
method to rescale components to different bit depths. Thus, if this method is overridden, it is important for the subclass method to callsuper()
, unless it overridesdecode
as well.- Overrides:
beginDecoding
in classTIFFDecompressor
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decodeRaw
public void decodeRaw(byte[] b, int dstOffset, int bitsPerPixel, int scanlineStride) throws java.io.IOException
Description copied from class:TIFFDecompressor
Decodes the source data into the providedbyte
arrayb
, starting at the offset given bydstOffset
. Each pixel occupiesbitsPerPixel
bits, with no padding between pixels. Scanlines are separated byscanlineStride
byte
s.- Specified by:
decodeRaw
in classTIFFDecompressor
- Parameters:
b
- abyte
array to be written.dstOffset
- the starting offset inb
to be written.bitsPerPixel
- the number of bits for each pixel.scanlineStride
- the number ofbyte
s to advance between that starting pixels of each scanline.- Throws:
java.io.IOException
- if an error occurs reading from the sourceImageInputStream
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finalize
protected void finalize() throws java.lang.Throwable
- Overrides:
finalize
in classjava.lang.Object
- Throws:
java.lang.Throwable
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