ddn.lib.zstd

Low-level D bindings for libzstd — the Zstandard compression library.

Overview:

This module provides comprehensive D bindings to libzstd (version 1.5.x+),

a fast lossless compression algorithm targeting real-time compression scenarios at zlib-level and better compression ratios.

The bindings cover the complete stable public API from zstd.h and

zdict.h, as well as selected experimental functions from the ZSTD_STATIC_LINKING_ONLY section.

Main_Features:

• Simple one-shot compression and decompression
• Explicit context API for reusable contexts
• Streaming compression and decompression
• Dictionary-based compression (create, reference, and use dictionaries)
• Advanced parameter control via ZSTD_cParameter and ZSTD_dParameter
• Frame inspection (content size, window size, dictionary ID)
• Dictionary training (COVER, FastCover, legacy algorithms)
• Memory estimation for all context and dictionary types

Quick_Start:

Compressing and decompressing data:

import ddn.lib.zstd;

ubyte[] data = cast(ubyte[])"Hello, Zstandard!";

// Compress
ubyte[1024] dst;
size_t cSize = ZSTD_compress(dst.ptr, dst.length, data.ptr, data.length, 3);

// Decompress
ubyte[1024] orig;
size_t oSize = ZSTD_decompress(orig.ptr, orig.length, dst.ptr, cSize);