HLS downloader

This is a library and application to download an HLS video from a m3u8 file. All segments will be downloaded individually and then concatenated into a single TS file. The default file name is video.ts.

Features

• Concurrent download segments with multiple HTTP connections
• Decrypt HLS encoded segments
• Display downloading progress bar

Limitations

• Master playlists are not supported (playlists which point to other playlists)
• Fragmented MP4 (fMP4) is not supported (only MPEG-TS)
• Playlists with the EXT-X-MAP tag are not supported

Library usage

Get the library:

go get github.com/maxerenberg/hlsdl

Sample:

package main

import (
	"io"
	"os"

	"github.com/maxerenberg/hlsdl"
)

func main() {
	url := "https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8"
	reader, err := hlsdl.Download(url)
	if err != nil {
		panic(err)
	}
	file, _ := os.Create("video.ts")
	io.Copy(file, reader)
	file.Close()
}

CLI Installation

go get -u -v github.com/maxerenberg/hlsdl/cmd/hlsdl

The command hlsdl will now be available in your $GOBIN directory.

To see all options, run hlsdl --help.

Example usage

$ hlsdl "https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8"

You can also specify custom HTTP headers:

$ hlsdl -H "Accept-Language: en-US,en;q=0.5" \
	"https://bitdash-a.akamaihd.net/content/sintel/hls/video/1500kbit.m3u8"