public class TIFFJPEGDecompressor extends TIFFDecompressor
| Modifier and Type | Field and Description |
|---|---|
protected static int |
EOI |
protected boolean |
hasJPEGTables |
protected ImageReadParam |
JPEGParam |
protected ImageReader |
JPEGReader |
protected static int |
SOI |
protected byte[] |
tables |
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| Constructor and Description |
|---|
TIFFJPEGDecompressor() |
| Modifier and Type | Method and Description |
|---|---|
void |
beginDecoding()
This routine is called prior to a sequence of calls to the
decode 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 provided
byte
array b, starting at the offset given by
dstOffset. |
protected void |
finalize() |
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, setSubsampleYprotected static final int SOI
protected static final int EOI
protected ImageReader JPEGReader
protected ImageReadParam JPEGParam
protected boolean hasJPEGTables
protected byte[] tables
public void beginDecoding()
TIFFDecompressordecode 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 call super(),
unless it overrides decode as well.
beginDecoding in class TIFFDecompressorpublic void decodeRaw(byte[] b,
int dstOffset,
int bitsPerPixel,
int scanlineStride)
throws IOException
TIFFDecompressorbyte
array b, starting at the offset given by
dstOffset. Each pixel occupies
bitsPerPixel bits, with no padding between pixels.
Scanlines are separated by scanlineStride
bytes.decodeRaw in class TIFFDecompressorb - a byte array to be written.dstOffset - the starting offset in b to be
written.bitsPerPixel - the number of bits for each pixel.scanlineStride - the number of bytes to
advance between that starting pixels of each scanline.IOException - if an error occurs reading from the source
ImageInputStream.Copyright © 2015–2022 SCIFIO. All rights reserved.