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Added 'LZ4 Compress' and 'LZ4 Decompress' operations. Closes #1116

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n1474335 2022-11-11 16:27:14 +00:00
parent ed8bd34915
commit 31a7f83b82
6 changed files with 131 additions and 1 deletions
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4
src/core/config/Categories.json
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@ -333,7 +333,9 @@
"LZString Decompress",
"LZString Compress",
"LZMA Decompress",
"LZMA Compress"
"LZMA Compress",
"LZ4 Decompress",
"LZ4 Compress"
]
},
{

43
src/core/operations/LZ4Compress.mjs Normal file
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@ -0,0 +1,43 @@
/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2022
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import lz4 from "lz4js";
/**
* LZ4 Compress operation
*/
class LZ4Compress extends Operation {
/**
* LZ4Compress constructor
*/
constructor() {
super();
this.name = "LZ4 Compress";
this.module = "Compression";
this.description = "LZ4 is a lossless data compression algorithm that is focused on compression and decompression speed. It belongs to the LZ77 family of byte-oriented compression schemes.";
this.infoURL = "https://wikipedia.org/wiki/LZ4_(compression_algorithm)";
this.inputType = "ArrayBuffer";
this.outputType = "ArrayBuffer";
this.args = [];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {ArrayBuffer}
*/
run(input, args) {
const inBuf = new Uint8Array(input);
const compressed = lz4.compress(inBuf);
return compressed.buffer;
}
}
export default LZ4Compress;

43
src/core/operations/LZ4Decompress.mjs Normal file
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@ -0,0 +1,43 @@
/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2022
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import lz4 from "lz4js";
/**
* LZ4 Decompress operation
*/
class LZ4Decompress extends Operation {
/**
* LZ4Decompress constructor
*/
constructor() {
super();
this.name = "LZ4 Decompress";
this.module = "Compression";
this.description = "LZ4 is a lossless data compression algorithm that is focused on compression and decompression speed. It belongs to the LZ77 family of byte-oriented compression schemes.";
this.infoURL = "https://wikipedia.org/wiki/LZ4_(compression_algorithm)";
this.inputType = "ArrayBuffer";
this.outputType = "ArrayBuffer";
this.args = [];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {ArrayBuffer}
*/
run(input, args) {
const inBuf = new Uint8Array(input);
const decompressed = lz4.decompress(inBuf);
return decompressed.buffer;
}
}
export default LZ4Decompress;