Download Youtube Video in Golang

This package is a Youtube video download package, for more detail refer https://github.com/rg3/youtube-dl for more download options.

Overview

• Install
• Usage
• Options
• Example: Download video from [dotGo 2015 - Rob Pike - Simplicity is Complicated]

Install:

go get github.com/kkdai/youtube

OR

git clone https://github.com/kkdai/youtube.git
go run youtubedr/main.go

Usage

Use the binary directly

It's really simple to use, just get the video id from youtube url - ex: https://www.youtube.com/watch?v=rFejpH_tAHM, the video id is rFejpH_tAHM

$ youtubedr QAGDGja7kbs
$ youtubedr https://www.youtube.com/watch?v=rFejpH_tAHM

Import this package in your golang program

package main

import (
	"flag"
	"fmt"
	"log"
	"os/user"
	"path/filepath"

	. "github.com/kkdai/youtube"
)

func main() {
	flag.Parse()
	log.Println(flag.Args())
	usr, _ := user.Current()
	currentDir := fmt.Sprintf("%v/Movies/youtubedr", usr.HomeDir)
	log.Println("download to dir=", currentDir)
	y := NewYoutube(true)
	arg := flag.Arg(0)
	if err := y.DecodeURL(arg); err != nil {
		fmt.Println("err:", err)
	}
	if err := y.StartDownload(filepath.Join(currentDir, "dl.mp4")); err != nil {
		fmt.Println("err:", err)
	}
}

Options:

option	type	description	default value
-d	string	the output directory	$HOME/Movies/youtubedr
-o	string	the output file name ( ext will auto detect on default value )	[video's title].ext
-d	string	the Socks 5 proxy (e.g. 10.10.10.10:7878)
-q	string	the output file quality (medium, hd720)

Example:

• download-dotGo-2015-rob-pike-video

  go get github.com/kkdai/youtube/youtubedr

  Download video from dotGo 2015 - Rob Pike - Simplicity is Complicated

  youtubedr https://www.youtube.com/watch?v=rFejpH_tAHM
  

• Download video to specific folder and name

  go get github.com/kkdai/youtube/youtubedr

  Download video from dotGo 2015 - Rob Pike - Simplicity is Complicated to current directory and name the file to simplicity-is-complicated.mp4

  youtubedr -d ./ -o simplicity-is-complicated.mp4 https://www.youtube.com/watch?v=rFejpH_tAHM
  

• Download video with specific quality

  go get github.com/kkdai/youtube/youtubedr

  Download video from dotGo 2015 - Rob Pike - Simplicity is Complicated with specific quality

  youtubedr -q medium https://www.youtube.com/watch?v=rFejpH_tAHM
  

How it works

• Parse the video ID you input in URL
  • ex: https://www.youtube.com/watch?v=rFejpH_tAHM, the video id is rFejpH_tAHM
• Get video information via video id.
  • Use URL: http://youtube.com/get_video_info?video_id=
• Parse and decode video information.
  • Download URL in "url="
  • title in "title="
• Download video from URL
  • Need the string combination of "url"

Inspired

• https://github.com/ytdl-org/youtube-dl
• https://github.com/lepidosteus/youtube-dl
• 拆解 Youtube 影片下載位置
• iawia002/annie
• How to get url from obfuscate video info: youtube video downloader with php

Project52

It is one of my project 52.

License

This package is licensed under MIT license. See LICENSE for details.