wenpeng-song / hls-downloader

Download HLS streams in NodeJS

HLS downloader

About

Downloads a live HLS stream.

Usage

CLI

hls-downloader [-V] [-h] [-q QUALITY] -o FILE stream_url

Example

hls-downloader -q best -c 5 -o video.mp4 "https://......./stream.m3u8"

Dependencies

You need to have FFMPEG installed, even with the "merge using FFMPEG" feature disabled, as FFMPEG is still used to transmux the merged TS file into an MP4 file.

API

const download = require("node-hls-downloader").download;

await download({
    quality: "best",
    concurrency: 5,
    outputFile: "video.mp4",
    streamUrl: "https://......./stream.m3u8",
});

TypeScript is also supported, with types already provided.

Options

Note: options marked with 🔒 are mandatory.

stream_url, streamUrl 🔒

The URL to the stream (either the master file or a playlist).

--live, live

Download the stream as a live feed, refreshing the playlist and downloading only new segments. Automatically stops when no new segments are found after a while.

• Default: false

--ffmpeg-merge, mergeUsingFfmpeg

Merge TS segments using FFMPEG instead of basic concatenation. Not recommended, but you can use it if stuttering issues occur when merging the TS segments.

• Default: false

--ffmpeg-path, ffmpegPath

Path to the FFMPEG binary. Can be useful to target a specific version or install of FFMPEG.

• Default: ffmpeg

--segments-dir, segmentsDir

Where the TS segments will be stored.

• Default: a temporary directory

--merged-segments-file, mergedSegmentsFile

Location of the merged TS segments file.

• Default: a temporary file

-c, --concurrency, concurrency

How many threads to use for downloading segments.

• Default: 1

-r, --max-retries, maxRetries

How many times to retry when failing to download segments.

• Default: 1

-q, --quality, quality 🔒*

Stream quality: worst, best, or max bandwidth.

* only mandatory if passing a master playlist stream URL

-o, --output-file, outputFile 🔒

Target file to download the stream to. If it already exists, it will be overwritten.

-h, --header, httpHeaders

Headers to use when making HTTP requests. On the CLI, the header argument can be repeated. Format is "Name: value".

--quiet, logger

In CLI, the quiet flag will disable all output except errors. Using the API, you can provide a logger config, which is either null to disable logging completely, a function taking any number of arguments, or an object with two members, log and error, each being a function taking any number of arguments.

• Default: false in CLI, console in API

Authors

• Spark-NF

License

The program is licensed under the Apache License 2.0.