zstd-jni 1.5.5-11 · com.github.luben.zstd.Zstd

Modifier and Type	Class and Description
public static enum	Zstd.ParamSwitch Note This enum controls features which are conditionally beneficial.

Access	Constructor and Description
public	Zstd()

Method Summary

Modifier and Type	Method and Description
public static native int	blockSizeMax()
public static native int	chainLogMax()
public static native int	chainLogMin()
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compress(byte[] the destination buffer dst, byte[] the source buffer src, int compression level level, boolean flag to enable or disable checksum checksumFlag) Compresses buffer 'src' into buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compress(byte[] the destination buffer dst, byte[] the source buffer src, int compression level level) Compresses buffer 'src' into buffer 'dst'.
public static long	compress(byte[] dst, byte[] src, ZstdDictCompress dict)
public static byte[]	Returns: byte array with the compressed data compress(byte[] the source buffer src) Compresses the data in buffer 'src' using default compression level
public static byte[]	Returns: byte array with the compressed data compress(byte[] the source buffer src, int compression level level) Compresses the data in buffer 'src'
public static int	Returns: the size of the compressed data compress(ByteBuffer the destination buffer. must be direct. It is assumed that the position() of this buffer marks the offset at which the compressed data are to be written, and that the limit() of this buffer is the maximum compressed data size to allow. When this method returns successfully, dstBuf's position() will be set to its current position() plus the compressed size of the data. dstBuf, ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the uncompressed data to be compressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuf's position() will be set to its limit(). srcBuf) Compresses the data in buffer 'srcBuf' using default compression level
public static int	Returns: the size of the compressed data compress(ByteBuffer the destination buffer. must be direct. It is assumed that the position() of this buffer marks the offset at which the compressed data are to be written, and that the limit() of this buffer is the maximum compressed data size to allow. When this method returns successfully, dstBuf's position() will be set to its current position() plus the compressed size of the data. dstBuf, ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the uncompressed data to be compressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuf's position() will be set to its limit(). srcBuf, int compression level level, boolean checksumFlag) Compresses the data in buffer 'srcBuf'
public static int	compress(ByteBuffer dstBuf, ByteBuffer srcBuf, int level)
public static ByteBuffer	Returns: A newly allocated direct ByteBuffer containing the compressed data. compress(ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the uncompressed data to be compressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuf's position() will be set to its limit(). srcBuf, int compression level level) Compresses the data in buffer 'srcBuf'
public static byte[]	Returns: byte array with the compressed data compress(byte[] the source buffer src, ZstdDictCompress dictionary to use dict) Compresses the data in buffer 'src'
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compress(byte[] the destination buffer dst, byte[] the source buffer src, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static int	Returns: the number of bytes written into buffer 'dstBuff' compress(ByteBuffer the destination buffer dstBuff, ByteBuffer the source buffer srcBuff, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static ByteBuffer	Returns: compressed direct byte buffer compress(ByteBuffer the source buffer srcBuff, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static int	Returns: the number of bytes written into buffer 'dstBuff' compress(ByteBuffer the destination buffer dstBuff, ByteBuffer the source buffer srcBuff, ZstdDictCompress the dictionary buffer dict) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static ByteBuffer	Returns: compressed direct byte buffer compress(ByteBuffer the source buffer srcBuff, ZstdDictCompress the dictionary buffer dict) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static native long	Returns: the maximum size of the compressed data compressBound(long the size of the data to be compressed srcSize) Maximum size of the compressed data
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressByteArray(byte[] the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, byte[] the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize, int compression level level, boolean flag to enable or disable checksum checksumFlag) Compresses buffer 'src' into buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressByteArray(byte[] the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, byte[] the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize, int compression level level) Compresses buffer 'src' into buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressDirectByteBuffer(ByteBuffer the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, ByteBuffer the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize, int compression level level, boolean flag to enable or disable checksum checksumFlag) Compresses direct buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressDirectByteBuffer(ByteBuffer the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, ByteBuffer the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize, int compression level level) Compresses direct buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressDirectByteBufferFastDict(ByteBuffer the destination buffer dst, int the start offset of 'dst' dstOffset, int the size of 'dst' dstSize, ByteBuffer the source buffer src, int the start offset of 'src' srcOffset, int the length of 'src' srcSize, ZstdDictCompress the dictionary dict) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressDirectByteBufferUsingDict(ByteBuffer the destination buffer dst, int the start offset of 'dst' dstOffset, int size of 'dst' dstSize, ByteBuffer the source buffer src, int the start offset of 'src' srcOffset, int the length of 'src' srcSize, byte[] the dictionary buffer dict, int compression level level) Compresses direct byte buffer 'src' into direct byte buffer 'dst' with dictionary.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressFastDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, int the length of available data in 'src' after `srcOffset' length, ZstdDictCompress the dictionary dict) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressFastDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, ZstdDictCompress the dictionary dict) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static native long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressUnsafe(long pointer to the destination buffer dst, long available space in the destination buffer dstSize, long pointer to the source buffer src, long available data in the source buffer srcSize, int compression level level, boolean flag to enable or disable checksum checksumFlag) Compresses buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressUnsafe(long pointer to the destination buffer dst, long available space in the destination buffer dstSize, long pointer to the source buffer src, long available data in the source buffer srcSize, int compression level level) Compresses buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressUsingDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, int the length of available data in 'src' after `srcOffset' length, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static long	Returns: the number of bytes written into buffer 'dst' or an error code if it fails (which can be tested using ZSTD_isError()) compressUsingDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' into buffer 'dst' with dictionary.
public static long	compressUsingDict(byte[] dst, byte[] src, byte[] dict, int level) Deprecated Use compress(dst, src, dict, level) instead Compresses buffer 'src' into buffer 'dst' with dictionary.
public static byte[]	Returns: compressed byte array compressUsingDict(byte[] the source buffer src, byte[] the dictionary buffer dict, int compression level level) Compresses buffer 'src' with dictionary.
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompress(byte[] the destination buffer dst, byte[] the source buffer src) Decompresses buffer 'src' into buffer 'dst'.
public static byte[]	Returns: byte array with the decompressed data decompress(byte[] the source buffer src, int the maximum size of the uncompressed data. If originaSize is greater than the actuall uncompressed size, additional memory copy going to happen. If originalSize is smaller than the uncompressed size, ZstdExeption will be thrown. originalSize) Decompress data
public static int	Returns: the size of the decompressed data. decompress(ByteBuffer the destination buffer. must be direct. It is assumed that the position() of this buffer marks the offset at which the decompressed data are to be written, and that the limit() of this buffer is the maximum decompressed data size to allow. When this method returns successfully, dstBuf's position() will be set to its current position() plus the decompressed size of the data. dstBuf, ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuf's position() will be set to its limit(). srcBuf) Decompress data
public static ByteBuffer	Returns: A newly-allocated ByteBuffer containing the decompressed data. The position() of this buffer will be 0, and the limit() will be the size of the decompressed data. In other words the buffer is ready to be used for reading. Note that this is different behavior from the other decompress() overload which takes as a parameter the destination ByteBuffer. decompress(ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuf's position() will be set to its limit(). srcBuf, int the maximum size of the uncompressed data originalSize) Decompress data
public static byte[]	Returns: byte array with the decompressed data decompress(byte[] the source buffer src, ZstdDictDecompress dictionary to use dict, int the maximum size of the uncompressed data originalSize) Decompress data
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompress(byte[] the destination buffer dst, byte[] the source buffer src, byte[] the dictionary buffer dict) Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static byte[]	Returns: byte array with the decompressed data decompress(byte[] the source buffer src, byte[] dictionary to use dict, int the maximum size of the uncompressed data originalSize)
public static int	Returns: the size of the decompressed data. decompress(ByteBuffer the destination buffer. must be direct. It is assumed that the position() of this buffer marks the offset at which the decompressed data are to be written, and that the limit() of this buffer is the maximum decompressed data size to allow. When this method returns successfully, dstBuff's position() will be set to its current position() plus the decompressed size of the data. dstBuff, ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuff's position() will be set to its limit(). srcBuff, byte[] the dictionary buffer to use for compression dict) Decompress data
public static ByteBuffer	Returns: A newly-allocated ByteBuffer containing the decompressed data. The position() of this buffer will be 0, and the limit() will be the size of the decompressed data. In other words the buffer is ready to be used for reading. Note that this is different behavior from the other decompress() overload which takes as a parameter the destination ByteBuffer. decompress(ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuff's position() will be set to its limit(). srcBuff, byte[] the dictionary used in the compression dict, int the maximum size of the uncompressed data originalSize) Decompress data
public static int	Returns: the size of the decompressed data. decompress(ByteBuffer the destination buffer. must be direct. It is assumed that the position() of this buffer marks the offset at which the decompressed data are to be written, and that the limit() of this buffer is the maximum decompressed data size to allow. When this method returns successfully, dstBuff's position() will be set to its current position() plus the decompressed size of the data. dstBuff, ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuff's position() will be set to its limit(). srcBuff, ZstdDictDecompress the dictionary buffer to use for compression dict) Decompress data
public static ByteBuffer	Returns: A newly-allocated ByteBuffer containing the decompressed data. The position() of this buffer will be 0, and the limit() will be the size of the decompressed data. In other words the buffer is ready to be used for reading. Note that this is different behavior from the other decompress() overload which takes as a parameter the destination ByteBuffer. decompress(ByteBuffer the source buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data to be decompressed, and that the limit() of this buffer marks its end. When this method returns successfully, srcBuff's position() will be set to its limit(). srcBuff, ZstdDictDecompress the dictionary used in the compression dict, int the maximum size of the uncompressed data originalSize) Decompress data
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressByteArray(byte[] the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, byte[] the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize) Decompresses buffer 'src' into buffer 'dst'.
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressDirectByteBuffer(ByteBuffer the destination buffer dst, int offset from the start of the destination buffer dstOffset, int available space in the destination buffer after the offset dstSize, ByteBuffer the source buffer src, int offset from the start of the source buffer srcOffset, int available data in the source buffer after the offset srcSize) Decompresses direct buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressDirectByteBufferFastDict(ByteBuffer the destination buffer dst, int the start offset of 'dst' dstOffset, int the size of 'dst' dstSize, ByteBuffer the source buffer src, int the start offset of 'src' srcOffset, int the size of 'src' srcSize, ZstdDictDecompress the dictionary dict) Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressDirectByteBufferUsingDict(ByteBuffer the destination buffer dst, int the start offset of 'dst' dstOffset, int size of 'dst' dstSize, ByteBuffer the source buffer src, int the start offset of 'src' srcOffset, int the size of 'src' srcSize, byte[] the dictionary buffer dict) Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static native long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedDirectByteBufferSize(ByteBuffer the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffe srcSize, boolean whether the buffer contains a magicless frame magicless) Deprecated Use `getDirectByteBufferFrameContentSize` to also return error codes from zstd Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedDirectByteBufferSize(ByteBuffer the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffe srcSize) Deprecated Use `getDirectByteBufferFrameContentSize` that return also the errors Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffer srcSize, boolean whether the buffer contains a magicless frame magicless) Deprecated Use `getFrameContentSize` to also return error codes from zstd Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffer srcSize) Deprecated Use `getFrameContentSize` to also return error codes from zstd Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition) Deprecated Use `getFrameContentSize` to also return error codes from zstd Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedSize(byte[] the compressed buffer src) Deprecated Use `getFrameContentSize` to also return error codes from zstd Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known decompressedSize(ByteBuffer the compressed buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data whose decompressed size is being queried, and that the limit() of this buffer marks its end. srcBuf) Deprecated Use `getDirectByteBufferFrameContentSize` that return also the errors Return the original size of a compressed buffer (if known)
private static native long	decompressedSize0(byte[] src, int srcPosition, int srcSize, boolean magicless)
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressFastDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, int the length of 'src' length, ZstdDictDecompress the dictionary dict) Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static native long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressUnsafe(long pointer to the destination buffer dst, long available space in the destination buffer after the offset dstSize, long pointer the source buffer src, long available data in the source buffer after the offset srcSize) Decompresses buffer 'src' into direct buffer 'dst'.
public static long	Returns: the number of bytes decompressed into destination buffer (originalSize) or an errorCode if it fails (which can be tested using ZSTD_isError()) decompressUsingDict(byte[] the destination buffer dst, int the start offset of 'dst' dstOffset, byte[] the source buffer src, int the start offset of 'src' srcOffset, int the length of 'src' length, byte[] the dictionary buffer dict) Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static long	decompressUsingDict(byte[] dst, byte[] src, byte[] dict) Deprecated Use decompress(dst, src, dict) instead Decompresses buffer 'src' into buffer 'dst' with dictionary.
public static native int	defaultCompressionLevel()
public static native long	errChecksumWrong()
public static native long	errCorruptionDetected()
public static native long	errDictionaryCorrupted()
public static native long	errDictionaryCreationFailed()
public static native long	errDictionaryWrong()
public static native long	errDstBufferNull()
public static native long	errDstSizeTooSmall()
public static native long	errFrameParameterUnsupported()
public static native long	errFrameParameterWindowTooLarge()
public static native long	errGeneric()
public static native long	errInitMissing()
public static native long	errMaxSymbolValueTooLarge()
public static native long	errMaxSymbolValueTooSmall()
public static native long	errMemoryAllocation()
public static native long	errNoError()
public static native long	errParameterOutOfBound()
public static native long	errParameterUnsupported()
public static native long	errPrefixUnknown()
public static native long	errSrcSizeWrong()
public static native long	errStageWrong()
public static native long	errTableLogTooLarge()
public static native long	errVersionUnsupported()
public static native long	errWorkSpaceTooSmall()
pack-priv static final byte[]	extractArray(ByteBuffer buffer)
pack-priv static native void	generateSequences(long stream, long outSeqs, long outSeqsSize, long src, long srcSize)
pack-priv static native long	getBuiltinSequenceProducer()
public static native long	Returns: DictId or 0 if not available getDictIdFromDict(byte[] dictionary dict) Get DictId of a dictionary
private static native long	getDictIdFromDictDirect(ByteBuffer dict, int offset, int length)
public static long	Returns: DictId or 0 if not available getDictIdFromDictDirect(ByteBuffer dictionary as Direct ByteBuffer dict) Get DictId of a dictionary
public static native long	Returns: DictId or 0 if not available getDictIdFromFrame(byte[] compressed frame src) Get DictId from a compressed frame
public static native long	Returns: DictId or 0 if not available getDictIdFromFrameBuffer(ByteBuffer compressed frame src) Get DictId from a compressed ByteBuffer frame
public static native long	Returns: the number of bytes of the original buffer 0 if the original size is not known negative if there is an error decoding the frame header getDirectByteBufferFrameContentSize(ByteBuffer the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffe srcSize, boolean whether the buffer contains a magicless frame magicless) Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known negative if there is an error decoding the frame header getDirectByteBufferFrameContentSize(ByteBuffer the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffe srcSize) Return the original size of a compressed buffer (if known)
public static native long	getErrorCode(long code)
public static native String	getErrorName(long code)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known, negative if there is an error decoding the frame header getFrameContentSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffer srcSize, boolean whether the buffer contains a magicless frame magicless) Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known, negative if there is an error decoding the frame header getFrameContentSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition, int length of the compressed data inside the src buffer srcSize) Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known, negative if there is an error decoding the frame header getFrameContentSize(byte[] the compressed buffer src, int offset of the compressed data inside the src buffer srcPosition) Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known, negative if there is an error decoding the frame header getFrameContentSize(byte[] the compressed buffer src) Return the original size of a compressed buffer (if known)
public static long	Returns: the number of bytes of the original buffer 0 if the original size is not known negative if there is an error decoding the frame header getFrameContentSize(ByteBuffer the compressed buffer. must be direct. It is assumed that the position() of this buffer marks the beginning of the compressed data whose decompressed size is being queried, and that the limit() of this buffer marks its end. srcBuf) Return the original size of a compressed buffer (if known)
private static native long	getFrameContentSize0(byte[] src, int srcPosition, int srcSize, boolean magicless)
pack-priv static native long	getStubSequenceProducer()
public static native int	hashLogMax()
public static native int	hashLogMin()
public static native boolean	Returns: if the return code signals an error isError(long return code/size code) Error handling
public static native int	loadDictCompress(long stream, byte[] dict, int dict_size)
public static native int	loadDictDecompress(long stream, byte[] dict, int dict_size)
public static native int	loadFastDictCompress(long stream, ZstdDictCompress dict)
public static native int	loadFastDictDecompress(long stream, ZstdDictDecompress dict)
public static native int	magicNumber()
public static native int	maxCompressionLevel()
public static native int	minCompressionLevel()
public static native void	registerSequenceProducer(long stream, long seqProdState, long seqProdFunction)
public static native int	searchLengthMax()
public static native int	searchLengthMin()
public static native int	searchLogMax()
public static native int	searchLogMin()
public static native int	setCompressionChainLog(long stream, int chainLog)
public static native int	setCompressionChecksums(long stream, boolean useChecksums)
public static native int	setCompressionHashLog(long stream, int hashLog)
public static native int	setCompressionJobSize(long stream, int jobSize)
public static native int	setCompressionLevel(long stream, int level)
public static native int	setCompressionLong(long stream, int windowLog)
public static native int	setCompressionMagicless(long stream, boolean useMagicless)
public static native int	setCompressionMinMatch(long stream, int minMatch)
public static native int	setCompressionOverlapLog(long stream, int overlapLog)
public static native int	setCompressionSearchLog(long stream, int searchLog)
public static native int	setCompressionStrategy(long stream, int strategy)
public static native int	setCompressionTargetLength(long stream, int targetLength)
public static native int	setCompressionWindowLog(long stream, int windowLog)
public static native int	setCompressionWorkers(long stream, int workers)
public static native int	setDecompressionLongMax(long stream, int windowLogMax)
public static native int	setDecompressionMagicless(long stream, boolean useMagicless)
public static native int	setEnableLongDistanceMatching(long stream, int enableLDM)
public static native int	setRefMultipleDDicts(long stream, boolean useMultiple)
public static native int	setSearchForExternalRepcodes(long stream, int searchRepcodes)
public static native int	setSequenceProducerFallback(long stream, boolean fallbackFlag)
public static native int	setValidateSequences(long stream, int validateSequences)
public static long	Returns: the number of bytes into buffer 'dictBuffer' or an error code if it fails (which can be tested using ZSTD_isError()) trainFromBuffer(byte[][] the samples buffer array samples, byte[] the new dictionary buffer dictBuffer, boolean use the legacy training algorithm; otherwise cover legacy) Creates a new dictionary to tune a kind of samples
public static long	Returns: the number of bytes into buffer 'dictBuffer' or an error code if it fails (which can be tested using ZSTD_isError()) trainFromBuffer(byte[][] the samples buffer array samples, byte[] the new dictionary buffer dictBuffer) Creates a new dictionary to tune a kind of samples (uses Cover algorithm)
private static native long	trainFromBuffer0(byte[][] samples, byte[] dictBuffer, boolean legacy)
public static long	Returns: the number of bytes into buffer 'dictBuffer' or an error code if it fails (which can be tested using ZSTD_isError()) trainFromBufferDirect(ByteBuffer the samples direct byte buffer array samples, int[] java integer array of sizes sampleSizes, ByteBuffer the new dictionary buffer (preallocated direct byte buffer) dictBuffer, boolean use the legacy training algorithm; oter legacy) Creates a new dictionary to tune a kind of samples
public static long	Returns: the number of bytes into buffer 'dictBuffer' or an error code if it fails (which can be tested using ZSTD_isError()) trainFromBufferDirect(ByteBuffer the samples direct byte buffer array samples, int[] java integer array of sizes sampleSizes, ByteBuffer the new dictionary buffer (preallocated direct byte buffer) dictBuffer) Creates a new dictionary to tune a kind of samples (uses Cover algorithm)
private static native long	trainFromBufferDirect0(ByteBuffer samples, int[] sampleSizes, ByteBuffer dictBuffer, boolean legacy)
public static native int	windowLogMax()
public static native int	windowLogMin()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

public Class Zstd

Nested and Inner Type Summary

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