https://github.com/idranme/silk-wasm

Tencent SILK codec for Node.js and browser
https://github.com/idranme/silk-wasm

browser codec decoder encoder javascript nodejs qq silk silk-v3 silkv3 slk wasm wechat

Last synced: 9 days ago
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Tencent SILK codec for Node.js and browser

• Host: GitHub
• URL: https://github.com/idranme/silk-wasm
• Owner: idranme
• License: mit
• Created: 2023-10-21T18:56:49.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-04-23T16:47:59.000Z (7 months ago)
• Last Synced: 2024-04-23T18:14:02.427Z (7 months ago)
• Topics: browser, codec, decoder, encoder, javascript, nodejs, qq, silk, silk-v3, silkv3, slk, wasm, wechat
• Language: C
• Homepage:
• Size: 42.8 MB
• Stars: 48
• Watchers: 1
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# silk-wasm

[![npm](https://img.shields.io/npm/v/silk-wasm?style=flat-square)](https://www.npmjs.com/package/silk-wasm)

QQ/微信语音编解码

## API

```ts

interface EncodeResult {

    data: Uint8Array

    duration: number

}

interface DecodeResult {

    data: Uint8Array

    duration: number

}

/**

 * 编码为 SILK

 * @param input WAV 或单声道 pcm_s16le 文件

 * @param sampleRate `input` 的采样率，可为 8000/12000/16000/24000/32000/44100/48000，当 `input` 为 WAV 时可填入 0

 * @returns SILK

 */

function encode(input: ArrayBufferView | ArrayBuffer, sampleRate: number): Promise

/**

 * 将 SILK 解码为 PCM

 * @param input SILK 文件

 * @param sampleRate `input` 的采样率

 * @returns pcm_s16le

 */

function decode(input: ArrayBufferView | ArrayBuffer, sampleRate: number): Promise

/**

 * 获取 SILK 音频时长

 * @param data SILK 文件

 * @param frameMs SILK 的 frameMs，可为 20/40/60/80/100，默认为 20

 * @returns 单位为毫秒的时长

 */

function getDuration(data: ArrayBufferView | ArrayBuffer, frameMs?: number): number

/**

 * 检测是否为 WAV 文件

 * @param data 任意文件

 */

function isWav(data: ArrayBufferView | ArrayBuffer): boolean

/**

 * 获取 WAV 文件的信息

 * @param data WAV 文件

 * @returns metadata

 */

function getWavFileInfo(data: ArrayBufferView | ArrayBuffer): WavFileInfo

/**

 * 检测是否为 SILK 文件

 * @param data 任意文件

 */

function isSilk(data: ArrayBufferView | ArrayBuffer): boolean

```

## Example

```js

import { encode } from './lib/index.mjs'  // use `silk-wasm` instead

import { readFile, writeFile } from 'fs/promises'

const pcm = await readFile('./testdata/canon.pcm')

const silk = await encode(pcm, 24000)

await writeFile('./test.silk', silk.data)

```

## Build wasm

```

cd binding

emcmake cmake .

emmake ninja

```