Deflate class - deflate library

Constructors

Deflate.new(List<int> bytes, {int level = DeflateLevel.defaultCompression, int windowBits = maxWindowBits, OutputStream? output}): Deflate the given bytes. level is the compression level to use for the deflate algorithm. If not provided, the default level of 6 is used. If output is provided, the compressed data will be written to that OutputStream, otherwise the compressed data will be accessed from the getBytes method.
Deflate.stream(InputStream _input, {int level = DeflateLevel.defaultCompression, int windowBits = maxWindowBits, OutputStream? output}): Deflate the given InputStream _input. _input can be null, which means it won't start compressing any data in the constructor and you can use addStream to compress incoming data in chunks, followed by finish to finalize the compression. level is the compression level to use for the deflate algorithm. If not provided, the default level of 6 is used. If output is provided, the compressed data will be written to that OutputStream, otherwise the compressed data will be accessed from the getBytes method.

Properties

crc32 ↔ int: The computed CRC32 checksum of the uncompressed data.
getter/setter pair
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
total ↔ int: Read a buffer from the current input stream, update the adler32 and total number of bytes read. All deflate() input goes through this function so some applications may wish to modify it to avoid allocating a large strm->next_in buffer and copying from it. (See also flush_pending()).
getter/setter pair

Methods

biFlush() → void: Flush the bit buffer, keeping at most 7 bits in it.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
setDataType() → void: Set the data type to ASCII or BINARY, using a crude approximation: binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise. IN assertion: the fields freq of dyn_ltree are set and the total of all frequencies does not exceed 64K (to fit in an int on 16 bit machines).
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Constants

blCodes → const int
blockDone → const int: block flush performed
bufferSize → const int
busyState → const int
dCodes → const int
defMemLevel → const int
dynamicTrees → const int
endBlock → const int
fast → const int
finishDone → const int: finish done, accept no more input or output
finishStarted → const int: finish started, need only more output at next deflate
finishState → const int
heapSize → const int
initState → const int
lCodes → const int
lengthCodes → const int
literals → const int
maxBits → const int
maxMatch → const int
maxMemLevel → const int
maxWindowBits → const int: 32K LZ77 window
minLookAhead → const int
minMatch → const int
needMore → const int: block not completed, need more input or more output
rep3_6 → const int: repeat previous bit length 3-6 times (2 bits of repeat count)
repz3_10 → const int: repeat a zero length 3-10 times (3 bits of repeat count)
repz11_138 → const int: repeat a zero length 11-138 times (7 bits of repeat count)
slow → const int
staticTrees → const int
stored → const int
storedBlock → const int
zAscii → const int
zBinary → const int
zBufError → const int
zDataError → const int
zDefaultStrategy → const int
zDeflated → const int: The deflate compression method
zErrNo → const int
zFiltered → const int
zHuffmanOnly → const int
zMemError → const int
zNeedDict → const int
zOk → const int
zStreamEnd → const int
zStreamError → const int
zUnknown → const int
zVersionError → const int