go-get-youtube v 0.2
A tiny Go library + client (command line Youtube video downloader) for downloading Youtube videos. The library is capable of fetching Youtube video metadata, in addition to downloading videos. If ffmpeg is available, client can extract MP3 audio from downloaded video files.
Kailash Nadh, http://nadh.in -- 27 February 2014
License: GPL v2
Client
Once you have compiled or downloaded the binary, simply run the following on your terminal:
ytdownload -id=youtube_video_id
Building
$ export GOPATH=$PWD/go-get-youtube
$ go get github.com/knadh/go-get-youtube
$ cd go-get-youtube/bin
$ ./go-get-youtube -id=cN_DpYBzKso -itag 18 -rename -mp3
Extracted audio: cN_DpYBzKso-rob-pike-concurrency-is-not-parallelis.mp3
Download duration: 5s
Average speed: 16.1MB/s
Downloaded video: cN_DpYBzKso-rob-pike-concurrency-is-not-parallelism.mp4
Library
Methods
youtube.Get(youtube_video_id)
video, err = youtube.Get(youtube_video_id)
Initializes a Video object by fetching its metdata from Youtube. Video is a struct with the following structure
{
Id, Title, Author, Keywords, Thumbnail_url string
Avg_rating float32
View_count, Length_seconds int
Formats []Format
}Video.Formats is an array of the Format struct, which looks like this:
type Format struct {
Itag int
Video_type, Quality, Url string
}
type Option struct {
Resume bool // resume failed or cancelled download
Rename bool // rename output file using video title
Mp3 bool // extract audio using ffmpeg
}
youtube.Download(format_index, output_file, option)
format_index is the index of the format listed in the Video.Formats array. Youtube offers a number of video formats (mp4, webm, 3gp etc.)
youtube.GetExtension(format_index)
Guesses the file extension (avi, 3gp, mp4, webm) based on the format chosen
Example
import (
youtube "github.com/knadh/go-get-youtube/youtube"
)
func main() {
// get the video object (with metdata)
video, err := youtube.Get("FTl0tl9BGdc")
// download the video and write to file
option := &youtube.Option{
Rename: true, // rename file using video title
Resume: true, // resume cancelled download
Mp3: true, // extract audio to MP3
}
video.Download(0, "video.mp4", option)
}Contributors
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