mirror of
https://github.com/musix-org/musix-oss
synced 2024-11-10 08:10:18 +00:00
71 lines
2.9 KiB
Markdown
71 lines
2.9 KiB
Markdown
|
# node-m3u8stream
|
||
|
|
|
||
|
|
Reads segments from a [m3u8 playlist][1] or [DASH MPD file][2] into a consumable stream.
|
||
|
|
|
||
|
|
[1]: https://tools.ietf.org/html/draft-pantos-http-live-streaming-20
|
||
|
|
[2]: https://dashif.org/docs/DASH-IF-IOP-v4.2-clean.pdf
|
||
|
|
|
||
|
|
[](http://travis-ci.org/fent/node-m3u8stream)
|
||
|
|
[](https://david-dm.org/fent/node-m3u8stream)
|
||
|
|
[](https://codecov.io/gh/fent/node-m3u8stream)
|
||
|
|
|
||
|
|
|
||
|
|
# Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
const fs = require('fs');
|
||
|
|
const m3u8stream = require('m3u8stream')
|
||
|
|
|
||
|
|
m3u8stream('http://somesite.com/link/to/the/playlist.m3u8')
|
||
|
|
.pipe(fs.createWriteStream('videofile.mp4'));
|
||
|
|
```
|
||
|
|
|
||
|
|
|
||
|
|
# API
|
||
|
|
|
||
|
|
### m3u8stream(url, [options])
|
||
|
|
|
||
|
|
Creates a readable stream of binary media data. `options` can have the following
|
||
|
|
|
||
|
|
* `begin` - Where to begin playing the video. Accepts an absolute unix timestamp or date, and a relative time in the formats `1:23:45.123` and `1m2s`.
|
||
|
|
* `liveBuffer` - How much buffer in milliseconds to have for live streams. Default is `20000`.
|
||
|
|
* `chunkReadahead` - How many chunks to preload ahead. Default is `3`.
|
||
|
|
* `highWaterMark` - How much of the download to buffer into the stream. See [node's docs](https://nodejs.org/api/stream.html#stream_constructor_new_stream_writable_options) for more. Note that the actual amount buffered can be higher since each chunk request maintains its own buffer.
|
||
|
|
* `requestOptions` - Any options you want to pass to [miniget](https://github.com/fent/node-miniget), such as `headers`.
|
||
|
|
* `parser` - Either "m3u8" or "dash-mpd". Defaults to guessing based on the playlist url ending in `.m3u8` or `.mpd`.
|
||
|
|
* `id` - For playlist containing multiple media options. If not given, the first representation will be picked.
|
||
|
|
|
||
|
|
### Stream#end()
|
||
|
|
|
||
|
|
If called, stops requesting segments, and refreshing the playlist.
|
||
|
|
|
||
|
|
#### Event: progress
|
||
|
|
* `Object` - Current segment with the following fields,
|
||
|
|
- `number` - number
|
||
|
|
- `number` - size
|
||
|
|
- `number` - duration
|
||
|
|
- `string` - url
|
||
|
|
* `number` - Total number of segments.
|
||
|
|
* `number` - Bytes downloaded up to this point.
|
||
|
|
|
||
|
|
For static non-live playlists, emitted each time a segment has finished downloading. Since total download size is unknown until all segment endpoints are hit, progress is calculated based on how many segments are available.
|
||
|
|
|
||
|
|
### Limitations
|
||
|
|
|
||
|
|
Currently, it does not support [encrypted media segments](https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-4.3.2.4). This is because the sites where this was tested on and intended for, YouTube and Twitch, don't use it.
|
||
|
|
|
||
|
|
This does not parse master playlists, only media playlists. If you want to parse a master playlist to get links to media playlists, you can try the [m3u8 module](https://github.com/tedconf/node-m3u8).
|
||
|
|
|
||
|
|
|
||
|
|
# Install
|
||
|
|
|
||
|
|
npm install m3u8stream
|
||
|
|
|
||
|
|
|
||
|
|
# Tests
|
||
|
|
Tests are written with [mocha](https://mochajs.org)
|
||
|
|
|
||
|
|
```bash
|
||
|
|
npm test
|
||
|
|
```
|