youtube

package module
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 Go to latest Published: Apr 8, 2021 License: MIT Imports: 16 Imported by: 0

README

youtube

MIT License go.dev reference Discord Chat

A library for retrieving metadata and obtaining direct links to video-only/audio-only/muxed streams of videos on YouTube in Go.

Inspiration

I was always curious on how YouTube downloader sites and software worked. So, I took the time to trace and reverse-engineer how HTTP requests are made to YouTube to then allow for video/audio from YouTube to be played on mobile/in the browser.

As a result, this library in Go allows for you to retrieve direct links to video-only/audio-only/muxed streams to YouTube videos, retrieve metadata of YouTube videos, and make searches for videos on YouTube without any need for an API key and without any usage quota restrictions.

This library also exposes all of its methods for decoding encrypted direct links to media, and decoding/parsing both JSON and URL-encoded documents returned by YouTube.

Many thanks to the library and blog posts from Tyrrrz/YoutubeExplode for giving me a good direction on how to get down-and-dirty tracing and decoding HTTP requests on YouTube.

Features

  • Does not use require an API key or have any usage quotas.
  • Retrieve direct links to video-only/audio-only/muxed streams to YouTube videos.
  • Retrieve metadata of videos or playlists on YouTube.
  • Search for videos/audio on YouTube.
  • Set timeouts/deadlines for all methods.
  • Minimal dependencies.
  • Concurrency-safe.

Setup

$ go get github.com/lithdew/youtube

Example

This example uses my library lithdew/nicehttp for downloading video/audio from YouTube as fast as possible in fixed-sized chunks with multiple workers working in parallel.

It searches for the song The Glitch Mob - Animus Vox on YouTube and downloads its audio, video, and muxed versions to disk.

It additionally prints all metadata pertaining to the first video it finds.

package main

import (
	"fmt"
	"github.com/lithdew/nicehttp"
	"github.com/lithdew/youtube"
)

func check(err error) {
	if err != nil {
		panic(err)
	}
}

func main() {
	// Search for the song Animus Vox by The Glitch Mob.

	results, err := youtube.Search("animus vox", 0)
	check(err)

	fmt.Printf("Got %d search result(s).\n\n", results.Hits)

	if len(results.Items) == 0 {
		check(fmt.Errorf("got zero search results"))
	}

	// Get the first search result and print out its details.

	details := results.Items[0]

	fmt.Printf(
		"ID: %q\n\nTitle: %q\nAuthor: %q\nDuration: %q\n\nView Count: %q\nLikes: %d\nDislikes: %d\n\n",
		details.ID,
		details.Title,
		details.Author,
		details.Duration,
		details.Views,
		details.Likes,
		details.Dislikes,
	)

	// Instantiate a player for the first search result.

	player, err := youtube.Load(details.ID)
	check(err)

	// Fetch audio-only direct link.

	stream, ok := player.SourceFormats().AudioOnly().BestAudio()
	if !ok {
		check(fmt.Errorf("no audio-only stream available"))
	}

	audioOnlyFilename := "audio." + stream.FileExtension()

	audioOnlyURL, err := player.ResolveURL(stream)
	check(err)

	fmt.Printf("Audio-only direct link: %q\n", audioOnlyURL)

	// Fetch video-only direct link.

	stream, ok = player.SourceFormats().VideoOnly().BestVideo()
	if !ok {
		check(fmt.Errorf("no video-only stream available"))
	}

	videoOnlyFilename := "video." + stream.FileExtension()

	videoOnlyURL, err := player.ResolveURL(stream)
	check(err)

	fmt.Printf("Video-only direct link: %q\n", videoOnlyURL)

	// Fetch muxed video/audio direct link.

	stream, ok = player.MuxedFormats().BestVideo()
	if !ok {
		check(fmt.Errorf("no muxed stream available"))
	}

	muxedFilename := "muxed." + stream.FileExtension()

	muxedURL, err := player.ResolveURL(stream)
	check(err)

	fmt.Printf("Muxed (video/audio) direct link: %q\n", muxedURL)

	// Download all the links.

	check(nicehttp.DownloadFile(audioOnlyFilename, audioOnlyURL))
	check(nicehttp.DownloadFile(videoOnlyFilename, videoOnlyURL))
	check(nicehttp.DownloadFile(muxedFilename, muxedURL))
}

You can run this example by running:

$ go run github.com/lithdew/youtube/cmd/example

An extended example is also provided for downloading to disk the highest quality audio-only stream of any YouTube video. It may be run by running:

$ go run github.com/lithdew/youtube/cmd/music https://www.youtube.com/watch?v=jPan651rVMs

What's missing?

Although this library is feature-complete for several use cases, there are a few things intentionally missing as I started this library as just a side project. The features missing are:

  1. Fetching video captions.
  2. Fetching video comments.
  3. DASH manifest support.
  4. Livestream support.

Should there be enough demand however, I'll look into taking some time to incorporate these features into this library :).

Open a Github issue to express your interest!

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	RegexWatchPlayerConfig = regexp.MustCompile(`ytplayer\.config = ({(?:"\w+":(?:.*?))*});`)
	RegexEmbedPlayerConfig = regexp.MustCompile(`yt\.setConfig\({'PLAYER_CONFIG': (.*?)}\)`)
)
View Source 
var AudioQuality = map[string]int{
	"AUDIO_QUALITY_LOW":    0,
	"AUDIO_QUALITY_MEDIUM": 1,
	"AUDIO_QUALITY_HIGH":   2,
}
View Source 
var ITags = [...]ITag{
	5: {
		Extension:     "flv",
		Resolution:    "240p",
		VideoEncoding: "Sorenson H.283",
		AudioEncoding: "mp3",
		AudioBitrate:  64,
	},
	6: {
		Extension:     "flv",
		Resolution:    "270p",
		VideoEncoding: "Sorenson H.263",
		AudioEncoding: "mp3",
		AudioBitrate:  64,
	},
	13: {
		Extension:     "3gp",
		VideoEncoding: "MPEG-4 Visual",
		AudioEncoding: "aac",
	},
	17: {
		Extension:     "3gp",
		Resolution:    "144p",
		VideoEncoding: "MPEG-4 Visual",
		AudioEncoding: "aac",
		AudioBitrate:  24,
	},
	18: {
		Extension:     "mp4",
		Resolution:    "360p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  96,
	},
	22: {
		Extension:     "mp4",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  192,
	},
	34: {
		Extension:     "flv",
		Resolution:    "480p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	35: {
		Extension:     "flv",
		Resolution:    "360p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	36: {
		Extension:     "3gp",
		Resolution:    "240p",
		VideoEncoding: "MPEG-4 Visual",
		AudioEncoding: "aac",
		AudioBitrate:  36,
	},
	37: {
		Extension:     "mp4",
		Resolution:    "1080p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  192,
	},
	38: {
		Extension:     "mp4",
		Resolution:    "3072p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  192,
	},
	43: {
		Extension:     "webm",
		Resolution:    "360p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  128,
	},
	44: {
		Extension:     "webm",
		Resolution:    "480p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  128,
	},
	45: {
		Extension:     "webm",
		Resolution:    "720p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  192,
	},
	46: {
		Extension:     "webm",
		Resolution:    "1080p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  192,
	},
	82: {
		Extension:     "mp4",
		Resolution:    "360p",
		VideoEncoding: "H.264",
		AudioBitrate:  96,
	},
	83: {
		Extension:     "mp4",
		Resolution:    "240p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  96,
	},
	84: {
		Extension:     "mp4",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  192,
	},
	85: {
		Extension:     "mp4",
		Resolution:    "1080p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  192,
	},
	100: {
		Extension:     "webm",
		Resolution:    "360p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  128,
	},
	101: {
		Extension:     "webm",
		Resolution:    "360p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  192,
	},
	102: {
		Extension:     "webm",
		Resolution:    "720p",
		VideoEncoding: "VP8",
		AudioEncoding: "vorbis",
		AudioBitrate:  192,
	},
	133: {
		Extension:     "mp4",
		Resolution:    "240p",
		VideoEncoding: "H.264",
	},
	134: {
		Extension:     "mp4",
		Resolution:    "360p",
		VideoEncoding: "H.264",
	},
	135: {
		Extension:     "mp4",
		Resolution:    "480p",
		VideoEncoding: "H.264",
	},
	136: {
		Extension:     "mp4",
		Resolution:    "720p",
		VideoEncoding: "H.264",
	},
	137: {
		Extension:     "mp4",
		Resolution:    "1080p",
		VideoEncoding: "H.264",
	},
	138: {
		Extension:     "mp4",
		Resolution:    "2160p",
		VideoEncoding: "H.264",
	},
	160: {
		Extension:     "mp4",
		Resolution:    "144p",
		VideoEncoding: "H.264",
	},
	242: {
		Extension:     "webm",
		Resolution:    "240p",
		VideoEncoding: "VP9",
	},
	243: {
		Extension:     "webm",
		Resolution:    "360p",
		VideoEncoding: "VP9",
	},
	244: {
		Extension:     "webm",
		Resolution:    "480p",
		VideoEncoding: "VP9",
	},
	247: {
		Extension:     "webm",
		Resolution:    "720p",
		VideoEncoding: "VP9",
	},
	248: {
		Extension:     "webm",
		Resolution:    "1080p",
		VideoEncoding: "VP9",
		AudioBitrate:  9,
	},
	264: {
		Extension:     "mp4",
		Resolution:    "1440p",
		VideoEncoding: "H.264",
	},
	266: {
		Extension:     "mp4",
		Resolution:    "2160p",
		VideoEncoding: "H.264",
	},
	271: {
		Extension:     "webm",
		Resolution:    "1440p",
		VideoEncoding: "VP9",
	},
	272: {
		Extension:     "webm",
		Resolution:    "2160p",
		VideoEncoding: "VP9",
	},
	278: {
		Extension:     "webm",
		Resolution:    "144p",
		VideoEncoding: "VP9",
	},
	298: {
		Extension:     "mp4",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		FPS:           60,
	},
	299: {
		Extension:     "mp4",
		Resolution:    "1080p",
		VideoEncoding: "H.264",
		FPS:           60,
	},
	302: {
		Extension:     "webm",
		Resolution:    "720p",
		VideoEncoding: "VP9",
		FPS:           60,
	},
	303: {
		Extension:     "webm",
		Resolution:    "1080p",
		VideoEncoding: "VP9",
		FPS:           60,
	},
	308: {
		Extension:     "webm",
		Resolution:    "1440p",
		VideoEncoding: "VP9",
		FPS:           60,
	},
	313: {
		Extension:     "webm",
		Resolution:    "2160p",
		VideoEncoding: "VP9",
	},
	315: {
		Extension:     "webm",
		Resolution:    "2160p",
		VideoEncoding: "VP9",
		FPS:           60,
	},
	139: {
		Extension:     "mp4",
		AudioEncoding: "aac",
		AudioBitrate:  48,
	},
	140: {
		Extension:     "mp4",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	141: {
		Extension:     "mp4",
		AudioEncoding: "aac",
		AudioBitrate:  256,
	},
	171: {
		Extension:     "webm",
		AudioEncoding: "vorbis",
		AudioBitrate:  128,
	},
	172: {
		Extension:     "webm",
		AudioEncoding: "vorbis",
		AudioBitrate:  192,
	},
	249: {
		Extension:     "webm",
		AudioEncoding: "opus",
		AudioBitrate:  50,
	},
	250: {
		Extension:     "webm",
		AudioEncoding: "opus",
		AudioBitrate:  70,
	},
	251: {
		Extension:     "webm",
		AudioEncoding: "opus",
		AudioBitrate:  160,
	},
	92: {
		Extension:     "ts",
		Resolution:    "240p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  48,
	},
	93: {
		Extension:     "ts",
		Resolution:    "480p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	94: {
		Extension:     "ts",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	95: {
		Extension:     "ts",
		Resolution:    "1080p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  256,
	},
	96: {
		Extension:     "ts",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  256,
	},
	120: {
		Extension:     "flv",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  128,
	},
	127: {
		Extension:     "ts",
		AudioEncoding: "aac",
		AudioBitrate:  96,
	},
	128: {
		Extension:     "ts",
		AudioEncoding: "aac",
		AudioBitrate:  96,
	},
	132: {
		Extension:     "ts",
		Resolution:    "240p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  48,
	},
	151: {
		Extension:     "ts",
		Resolution:    "720p",
		VideoEncoding: "H.264",
		AudioEncoding: "aac",
		AudioBitrate:  24,
	},
	394: {
		Extension:     "mp4",
		Resolution:    "144p",
		VideoEncoding: "AV1",
	},
	395: {
		Extension:     "mp4",
		Resolution:    "240p",
		VideoEncoding: "AV1",
	},
	396: {
		Extension:     "mp4",
		Resolution:    "360p",
		VideoEncoding: "AV1",
	},
	397: {
		Extension:     "mp4",
		Resolution:    "480p",
		VideoEncoding: "AV1",
	},
	398: {
		Extension:     "mp4",
		Resolution:    "720p",
		VideoEncoding: "AV1",
	},
	399: {
		Extension:     "mp4",
		Resolution:    "1080p",
		VideoEncoding: "AV1",
	},
	400: {
		Extension:     "mp4",
		Resolution:    "1440p",
		VideoEncoding: "AV1",
	},
	401: {
		Extension:     "mp4",
		Resolution:    "2160p",
		VideoEncoding: "AV1",
	},
	402: {
		Extension:     "mp4",
		Resolution:    "2880p",
		VideoEncoding: "AV1",
	},
}
View Source 
var RegexStreamID = regexp.MustCompile(`(?i)([a-z0-9_-]{11})`)
View Source 
var VideoQuality = map[string]int{
	"tiny":   0,
	"low":    1,
	"medium": 2,
	"large":  3,
	"hd1440": 4,
	"hd2160": 5,
}

Functions

This section is empty.

Types

type Assets 

type Assets struct {
	CSS string `json:"css"`
	JS  string `json:"js"`
}

func LoadEmbedPlayerAssets 

func LoadEmbedPlayerAssets(id StreamID) (Assets, error)

func LoadEmbedPlayerAssetsDeadline 

func LoadEmbedPlayerAssetsDeadline(id StreamID, deadline time.Time) (Assets, error)

func LoadEmbedPlayerAssetsTimeout 

func LoadEmbedPlayerAssetsTimeout(id StreamID, timeout time.Duration) (Assets, error)

func ParseAssetsJSON 

func ParseAssetsJSON(v *fastjson.Value) Assets

func (Assets) LoadCSS 

func (p Assets) LoadCSS(t Transport) (string, error)

func (Assets) LoadCSSDeadline 

func (p Assets) LoadCSSDeadline(t Transport, deadline time.Time) (string, error)

func (Assets) LoadCSSTimeout 

func (p Assets) LoadCSSTimeout(t Transport, timeout time.Duration) (string, error)

func (Assets) LoadJS 

func (p Assets) LoadJS(t Transport) (string, error)

func (Assets) LoadJSDeadline 

func (p Assets) LoadJSDeadline(t Transport, deadline time.Time) (string, error)

func (Assets) LoadJSTimeout 

func (p Assets) LoadJSTimeout(t Transport, timeout time.Duration) (string, error)

type Cipher 

type Cipher struct {
	URL             string `json:"url"`
	Signature       string `json:"s"`
	SignaturePolicy string `json:"sp"`
}

func ParseCipherJSON 

func ParseCipherJSON(v *fastjson.Value) Cipher

func (Cipher) DecodeURL 

func (c Cipher) DecodeURL(script string) (string, error)

type Client 

type Client struct {
	Transport
}

func NewClient 

func NewClient() Client

func WrapClient 

func WrapClient(transport Transport) Client

func (*Client) Load 

func (c *Client) Load(id StreamID) (Player, error)

func (*Client) LoadDeadline 

func (c *Client) LoadDeadline(id StreamID, deadline time.Time) (Player, error)

func (*Client) LoadEmbedPlayer 

func (c *Client) LoadEmbedPlayer(id StreamID) (Player, error)

func (*Client) LoadEmbedPlayerAssets 

func (c *Client) LoadEmbedPlayerAssets(id StreamID) (Assets, error)

func (*Client) LoadEmbedPlayerAssetsDeadline 

func (c *Client) LoadEmbedPlayerAssetsDeadline(id StreamID, deadline time.Time) (Assets, error)

func (*Client) LoadEmbedPlayerAssetsTimeout 

func (c *Client) LoadEmbedPlayerAssetsTimeout(id StreamID, timeout time.Duration) (Assets, error)

func (*Client) LoadEmbedPlayerDeadline 

func (c *Client) LoadEmbedPlayerDeadline(id StreamID, deadline time.Time) (Player, error)

func (*Client) LoadEmbedPlayerStreams 

func (c *Client) LoadEmbedPlayerStreams(id StreamID) (Streams, error)

func (*Client) LoadEmbedPlayerStreamsDeadline 

func (c *Client) LoadEmbedPlayerStreamsDeadline(id StreamID, deadline time.Time) (Streams, error)

func (*Client) LoadEmbedPlayerStreamsTimeout 

func (c *Client) LoadEmbedPlayerStreamsTimeout(id StreamID, timeout time.Duration) (Streams, error)

func (*Client) LoadEmbedPlayerTimeout 

func (c *Client) LoadEmbedPlayerTimeout(id StreamID, timeout time.Duration) (Player, error)

func (*Client) LoadPlaylist 

func (c *Client) LoadPlaylist(id string, offset uint) (PlaylistResult, error)

func (*Client) LoadPlaylistDeadline 

func (c *Client) LoadPlaylistDeadline(id string, offset uint, deadline time.Time) (PlaylistResult, error)

func (*Client) LoadPlaylistTimeout 

func (c *Client) LoadPlaylistTimeout(id string, offset uint, timeout time.Duration) (PlaylistResult, error)

func (*Client) LoadTimeout 

func (c *Client) LoadTimeout(id StreamID, timeout time.Duration) (Player, error)

func (*Client) LoadWatchPlayer 

func (c *Client) LoadWatchPlayer(id StreamID) (Player, error)

func (*Client) LoadWatchPlayerDeadline 

func (c *Client) LoadWatchPlayerDeadline(id StreamID, deadline time.Time) (Player, error)

func (*Client) LoadWatchPlayerTimeout 

func (c *Client) LoadWatchPlayerTimeout(id StreamID, timeout time.Duration) (Player, error)

func (*Client) Search 

func (c *Client) Search(query string, page uint) (SearchResult, error)

func (*Client) SearchDeadline 

func (c *Client) SearchDeadline(query string, page uint, deadline time.Time) (SearchResult, error)

func (*Client) SearchTimeout 

func (c *Client) SearchTimeout(query string, page uint, timeout time.Duration) (SearchResult, error)

type ColorInfo 

type ColorInfo struct {
	Primaries               string `json:"primaries"`
	TransferCharacteristics string `json:"transferCharacteristics"`
	MatrixCoefficients      string `json:"matrixCoefficients"`
}

func ParseColorInfoJSON 

func ParseColorInfoJSON(v *fastjson.Value) ColorInfo

type Format 

type Format struct {
	AverageBitrate   uint   `json:"averageBitrate"`
	ApproxDurationMs string `json:"approxDurationMs"`
	ContentLength    string `json:"contentLength"`
	Bitrate          uint   `json:"bitrate"`

	URL    *string `json:"url,omitempty"`
	Cipher *Cipher `json:"cipher,omitempty"`

	Quality      string `json:"quality"`
	QualityLabel string `json:"qualityLabel"`

	ITag     uint   `json:"itag"`
	MIMEType string `json:"mimeType"`

	Width  uint `json:"width"`
	Height uint `json:"height"`

	FPS       *uint      `json:"fps,omitempty"`
	ColorInfo *ColorInfo `json:"colorInfo,omitempty"`

	AudioQuality    *string `json:"audioQuality,omitempty"`
	AudioChannels   *uint   `json:"audioChannels,omitempty"`
	AudioSampleRate *string `json:"audioSampleRate,omitempty"`

	InitRange  *TimeRange `json:"initRange,omitempty"`
	IndexRange *TimeRange `json:"indexRange,omitempty"`

	LastModified    string `json:"lastModified"`
	HighReplication bool   `json:"highReplication,omitempty"`

	ProjectionType string `json:"projectionType"`
}

func ParseFormatJSON 

func ParseFormatJSON(v *fastjson.Value) Format

func SearchForBestAudioQuality 

func SearchForBestAudioQuality(formats Formats) (Format, bool)

func SearchForBestVideoQuality 

func SearchForBestVideoQuality(formats Formats) (Format, bool)

func (Format) FileExtension 

func (f Format) FileExtension() string

type Formats 

type Formats []Format

func FilterAudioStreams 

func FilterAudioStreams(formats Formats) Formats

func FilterVideoStreams 

func FilterVideoStreams(formats Formats) Formats

func SortByAudioQuality 

func SortByAudioQuality(formats Formats) Formats

func SortByVideoQuality 

func SortByVideoQuality(formats Formats) Formats

func (Formats) AudioOnly 

func (f Formats) AudioOnly() Formats

func (Formats) BestAudio 

func (f Formats) BestAudio() (Format, bool)

func (Formats) BestVideo 

func (f Formats) BestVideo() (Format, bool)

func (Formats) SortByAudioQuality 

func (f Formats) SortByAudioQuality() Formats

func (Formats) SortByVideoQuality 

func (f Formats) SortByVideoQuality() Formats

func (Formats) VideoOnly 

func (f Formats) VideoOnly() Formats

type ITag 

type ITag struct {
	Extension     string
	Resolution    string
	VideoEncoding string
	AudioEncoding string
	AudioBitrate  int
	FPS           int
}

type ListItem 

type ListItem struct {
	ID StreamID `json:"encrypted_id"`

	Title       string `json:"title"`
	Description string `json:"description"`
	Thumbnail   string `json:"thumbnail"`

	Added       string    `json:"added"`
	TimeCreated time.Time `json:"time_created"`

	Rating   float64 `json:"rating"`
	Likes    uint    `json:"likes"`
	Dislikes uint    `json:"dislikes"`

	Views    string `json:"views"`
	Comments string `json:"comments"`

	Duration      string        `json:"duration"`
	LengthSeconds time.Duration `json:"length_seconds"`

	Author  string `json:"author"`
	UserID  string `json:"user_id"`
	Privacy string `json:"privacy"`

	CategoryID uint `json:"category_id"`

	IsHD bool `json:"is_hd"`
	IsCC bool `json:"is_cc"`

	CCLicense bool `json:"cc_license"`

	Keywords []string `json:"keywords"`
}

func ParseListItem 

func ParseListItem(v *fastjson.Value) ListItem

type Player 

type Player struct {
	Transport
	Assets
	Streams
}

func Load 

func Load(id StreamID) (Player, error)

func LoadDeadline 

func LoadDeadline(id StreamID, deadline time.Time) (Player, error)

func LoadEmbedPlayer 

func LoadEmbedPlayer(id StreamID) (Player, error)

func LoadEmbedPlayerDeadline 

func LoadEmbedPlayerDeadline(id StreamID, deadline time.Time) (Player, error)

func LoadEmbedPlayerTimeout 

func LoadEmbedPlayerTimeout(id StreamID, timeout time.Duration) (Player, error)

func LoadTimeout 

func LoadTimeout(id StreamID, timeout time.Duration) (Player, error)

func LoadWatchPlayer 

func LoadWatchPlayer(id StreamID) (Player, error)

func LoadWatchPlayerDeadline 

func LoadWatchPlayerDeadline(id StreamID, deadline time.Time) (Player, error)

func LoadWatchPlayerTimeout 

func LoadWatchPlayerTimeout(id StreamID, timeout time.Duration) (Player, error)

func (Player) ResolveURL 

func (p Player) ResolveURL(v Format) (string, error)

func (Player) ResolveURLDeadline 

func (p Player) ResolveURLDeadline(v Format, deadline time.Time) (string, error)

func (Player) ResolveURLTimeout 

func (p Player) ResolveURLTimeout(v Format, timeout time.Duration) (string, error)

type PlaylistResult 

type PlaylistResult struct {
	Title       string `json:"title"`
	Author      string `json:"author"`
	Description string `json:"description"`
	Views       uint   `json:"views"`

	Items []ListItem `json:"video"`
}

func LoadPlaylist 

func LoadPlaylist(id string, offset uint) (PlaylistResult, error)

func LoadPlaylistDeadline 

func LoadPlaylistDeadline(id string, offset uint, deadline time.Time) (PlaylistResult, error)

func LoadPlaylistTimeout 

func LoadPlaylistTimeout(id string, offset uint, timeout time.Duration) (PlaylistResult, error)

func ParsePlaylistResultJSON 

func ParsePlaylistResultJSON(v *fastjson.Value) PlaylistResult

type SearchResult 

type SearchResult struct {
	Hits  uint       `json:"hits"`
	Items []ListItem `json:"video"`
}

func ParseSearchResultJSON 

func ParseSearchResultJSON(v *fastjson.Value) SearchResult
func Search(query string, page uint) (SearchResult, error)

func SearchDeadline 

func SearchDeadline(query string, page uint, deadline time.Time) (SearchResult, error)

func SearchTimeout 

func SearchTimeout(query string, page uint, timeout time.Duration) (SearchResult, error)

type StreamID 

type StreamID string

func ExtractStreamID 

func ExtractStreamID(url string) (StreamID, error)

func (StreamID) Valid 

func (v StreamID) Valid() error

type Streams 

type Streams struct {
	// contains filtered or unexported fields
}

func LoadEmbedPlayerStreams 

func LoadEmbedPlayerStreams(id StreamID) (Streams, error)

func LoadEmbedPlayerStreamsDeadline 

func LoadEmbedPlayerStreamsDeadline(id StreamID, deadline time.Time) (Streams, error)

func LoadEmbedPlayerStreamsTimeout 

func LoadEmbedPlayerStreamsTimeout(id StreamID, timeout time.Duration) (Streams, error)

func (Streams) Author 

func (s Streams) Author() string

func (Streams) AverageRating 

func (s Streams) AverageRating() float64

func (Streams) ChannelID 

func (s Streams) ChannelID() string

func (Streams) ContextParams 

func (s Streams) ContextParams() string

func (Streams) ExpiresInSeconds 

func (s Streams) ExpiresInSeconds() string

func (Streams) ID 

func (s Streams) ID() StreamID

ID returns the unique ID pertaining to this stream.

func (Streams) Keywords 

func (s Streams) Keywords() []string

func (Streams) MuxedFormats 

func (s Streams) MuxedFormats() Formats

MuxedFormats returns premuxed (video/audio-combined) streaming formats. Premuxing comes at an expense of poorer video/audio quality.

func (Streams) PlayableInEmbed 

func (s Streams) PlayableInEmbed() bool

func (Streams) Reason 

func (s Streams) Reason() string

func (Streams) ShortDescription 

func (s Streams) ShortDescription() string

func (Streams) SourceFormats 

func (s Streams) SourceFormats() Formats

SourceFormats returns streaming formats that either video-only or audio-only at their highest quality. See the documentation for MuxedFormats for lower quality, premuxed streaming formats..

func (Streams) Status 

func (s Streams) Status() string

func (Streams) Title 

func (s Streams) Title() string

func (Streams) ViewCount 

func (s Streams) ViewCount() string

type TimeRange 

type TimeRange struct {
	Start string `json:"start"`
	End   string `json:"end"`
}

func ParseTimeRangeJSON 

func ParseTimeRangeJSON(v *fastjson.Value) TimeRange

type Transport 

type Transport interface {
	DownloadBytesDeadline(dst []byte, url string, deadline time.Time) ([]byte, error)
}

Transport represents the transport client used for youtube.Client.

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