Class TIFFJPEGDecompressor
java.lang.Object
com.github.jaiimageio.plugins.tiff.TIFFDecompressor
com.github.jaiimageio.impl.plugins.tiff.TIFFJPEGDecompressor
- Direct Known Subclasses:
TIFFOldJPEGDecompressor
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate byte[]
private static final boolean
protected static final int
protected boolean
protected ImageReadParam
protected ImageReader
protected static final int
protected byte[]
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 -
Method Summary
Modifier and TypeMethodDescriptionvoid
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()
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 Details
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DEBUG
private static final boolean DEBUG- See Also:
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SOI
protected static final int SOI- See Also:
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EOI
protected static final int EOI- See Also:
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JPEGReader
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JPEGParam
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hasJPEGTables
protected boolean hasJPEGTables -
tables
protected byte[] tables -
data
private byte[] data
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Constructor Details
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TIFFJPEGDecompressor
public TIFFJPEGDecompressor()
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Method Details
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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 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:
IOException
- if an error occurs reading from the sourceImageInputStream
.
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finalize
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