Module core 

Streaming compression functionality.

Modules

deflate_flags

Structs

BitBuffer 🔒

CallbackBuf 🔒

CallbackFunc

Callback function and user used in compress_to_output.

CallbackOxide 🔒

CompressorOxide

Main compression struct.

DictOxide 🔒

Error 🔒

HuffmanOxide 🔒

A struct containing data about huffman codes and symbol frequencies.

LZOxide 🔒

OutputBufferOxide 🔒

ParamsOxide 🔒

Rle 🔒

Status of RLE encoding of huffman code lengths.

SavedOutputBufferOxide 🔒

SymFreq 🔒

Enums

CallbackOut 🔒

CompressionStrategy

Strategy setting for compression.

TDEFLFlush

A list of deflate flush types.

TDEFLStatus

Return status of compression.

Constants

BITMASKS 🔒

COMP_FAST_LOOKAHEAD_SIZE 🔒

DEFAULT_FLAGS 🔒

DIST_TABLE 🔒

Tables for distances.

HUFF_CODES_TABLE 🔒

Tables for the run-length encoded huffman lengths for literals/lengths/distances.

LARGE_DIST_EXTRA 🔒

Number of extra bits distances above 512.

LARGE_DIST_SYM 🔒

Base values to calculate distances above 512.

LEN_EXTRA 🔒

Number of extra bits for length values.

LEN_SYM 🔒

LEN_SYM_OFFSET 🔒

LEVEL1_HASH_SIZE_MASK 🔒

Size of hash chain for fast compression mode.

LITLEN_TABLE 🔒

Tables used for literal/lengths in HuffmanOxide.

LZ_DICT_SIZE 🔒

Size of the chained hash table.

LZ_DICT_SIZE_MASK 🔒

Mask used when stepping through the hash chains.

MAX_HUFF_SYMBOLS 🔒

MAX_HUFF_SYMBOLS_0 🔒

Literal/length codes

MAX_HUFF_SYMBOLS_1 🔒

Distance codes.

MAX_HUFF_SYMBOLS_2 🔒

Huffman length values.

MAX_HUFF_TABLES 🔒

The number of huffman tables used by the compressor. Literal/length, Distances and Length of the huffman codes for the other two tables.

MAX_MATCH_LEN 🔒

The maximum length of a match.

MAX_PROBES_MASK 🔒

MAX_SUPPORTED_HUFF_CODESIZE 🔒

MIN_MATCH_LEN 🔒

The minimum length of a match.

NUM_PROBES 🔒

The maximum number of checks for matches in the hash table the compressor will make for each compression level.

SMALL_DIST_EXTRA 🔒

Number of extra bits for distances smaller than 512.

SMALL_DIST_SYM 🔒

Distance codes for distances smaller than 512.

Functions

compress

Main compression function. Tries to compress as much as possible from in_buf and puts compressed output into out_buf.

compress_block 🔒

compress_fast 🔒

compress_inner 🔒

compress_lz_codes 🔒

compress_normal 🔒

compress_to_output

Main compression function. Callbacks output.

create_comp_flags_from_zip_params

Create a set of compression flags using parameters used by zlib and other compressors. Mainly intended for use with transition from c libraries as it deals with raw integers.

flush_block 🔒

flush_output_buffer 🔒

probes_from_flags 🔒

read_u16_le 🔒

record_literal 🔒

record_match 🔒

write 🔒

Type Aliases

Result 🔒