Deflate class Null safety
Constructors
-
Deflate(List<
int> bytes, {int? level = DEFAULT_COMPRESSION, int flush = FINISH, dynamic output}) - Deflate.buffer(InputStreamBase _input, {int? level = DEFAULT_COMPRESSION, int flush = FINISH, dynamic output})
Properties
- crc32 ↔ int
-
read / write
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- level → int?
-
Compression level used (1..9)
read-only
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- 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()).
read / write
Methods
-
addBuffer(
InputStream buffer, {int flush = FINISH}) → void - Add more data to be deflated.
-
addBytes(
List< int> bytes, {int flush = FINISH}) → void - Add more data to be deflated.
-
biFlush(
) → void - Flush the bit buffer, keeping at most 7 bits in it.
-
finish(
) → void -
getBytes(
) → List< int> - Get the resulting compressed bytes.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent 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).
-
takeBytes(
) → List< int> - Get the resulting compressed bytes without storing the resulting data to minimize memory usage.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- BEST_COMPRESSION → const int
-
9 - BEST_SPEED → const int
-
1 - blCodes → const int
-
19 - blockDone → const int
-
block flush performed
1 - bufferSize → const int
-
8 * 2 - busyState → const int
-
113 - dCodes → const int
-
30 - DEFAULT_COMPRESSION → const int
-
6 - defMemLevel → const int
-
8 - dynamicTrees → const int
-
2 - endBlock → const int
-
256 - fast → const int
-
1 - FINISH → const int
-
4 - finishDone → const int
-
finish done, accept no more input or output
3 - finishStarted → const int
-
finish started, need only more output at next deflate
2 - finishState → const int
-
666 - FULL_FLUSH → const int
-
3 - heapSize → const int
-
(2 * lCodes + 1) - initState → const int
-
42 - lCodes → const int
-
(literals + 1 + lengthCodes) - lengthCodes → const int
-
29 - literals → const int
-
256 - maxBits → const int
-
15 - maxMatch → const int
-
258 - maxMemLevel → const int
-
9 - maxWBits → const int
-
32K LZ77 window
15 - minLookAhead → const int
-
(maxMatch + minMatch + 1) - minMatch → const int
-
3 - needMore → const int
-
block not completed, need more input or more output
0 - NO_COMPRESSION → const int
-
0 - NO_FLUSH → const int
-
0 - PARTIAL_FLUSH → const int
-
1 - rep3_6 → const int
-
repeat previous bit length 3-6 times (2 bits of repeat count)
16 - repz3_10 → const int
-
repeat a zero length 3-10 times (3 bits of repeat count)
17 - repz11_138 → const int
-
repeat a zero length 11-138 times (7 bits of repeat count)
18 - slow → const int
-
2 - staticTrees → const int
-
1 - stored → const int
-
0 - storedBlock → const int
-
0 - SYNC_FLUSH → const int
-
2 - zAscii → const int
-
1 - zBinary → const int
-
0 - zBufError → const int
-
-5 - zDataError → const int
-
-3 - zDefaultCompression → const int
-
-1 - zDefaultStrategy → const int
-
0 - zDeflated → const int
-
The deflate compression method
8 - zErrNo → const int
-
-1 - zFiltered → const int
-
1 - zHuffmanOnly → const int
-
2 - zMemError → const int
-
-4 - zNeedDict → const int
-
2 - zOk → const int
-
0 - zStreamEnd → const int
-
1 - zStreamError → const int
-
-2 - zUnknown → const int
-
2 - zVersionError → const int
-
-6