https://github.com/jfrancos/oggmented

decodeAudioData(oggVorbisBuffer) in any browser
https://github.com/jfrancos/oggmented

Last synced: 9 days ago
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decodeAudioData(oggVorbisBuffer) in any browser

• Host: GitHub
• URL: https://github.com/jfrancos/oggmented
• Owner: jfrancos
• Created: 2020-03-15T01:08:24.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-01-07T19:13:19.000Z (almost 2 years ago)
• Last Synced: 2024-10-12T05:05:13.194Z (25 days ago)
• Language: JavaScript
• Homepage: https://www.npmjs.com/package/oggmented
• Size: 1.51 MB
• Stars: 6
• Watchers: 1
• Forks: 3
• Open Issues: 22
• Metadata Files:
  • Readme: README.md

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README

        
# oggmented

oggmented `extends` AudioContext and overrides `decodeAudioData` to use an Emscripten transpiling of libogg-1.3.4 and libvorbis-1.3.6 when it encounters ogg vorbis data.

This allows you to [`decodeAudioData`](https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext/decodeAudioData) ogg vorbis buffers correctly in any browser.  This is especially useful in Safari and iOS browsers, which don't `decodeAudioData(oggVorbisBuffer)` [at all](https://caniuse.com/#search=vorbis).

In addition, [Blink](https://en.wikipedia.org/wiki/Blink_(browser_engine)) (Brave, Opera, Chrome) uses ffmpeg, which has [a bug that slightly bloats the end of decoded vorbis audio](https://trac.ffmpeg.org/ticket/6367), resulting in clicks when `audioContext.createBufferSource().loop === true`.  Using this package fixes that (assuming of course that the waveform begins and ends at the same place etc).

# Installation

`npm install oggmented`

# Usage

Use it like you would regular AudioContext:

```

import oggmentedAudioContext from 'oggmented'

const audioCtx = new oggmentedAudioContext()

// instead of 

// const audioCtx = new (window.AudioContext || window.webkitAudioContext)()

```

## License

MIT © [jfrancos](https://github.com/jfrancos)