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 # YoutubeExplodeDart
-This is a port of the [YoutubeExplode] library from C#.
+This is a port of the [YoutubeExplode] library from C#, most of the API functions or doc comments come from YoutubeExplode's API.
 
-Not all the features are yet supported or stable, check the issues for the current development of all the features. 
+---
+
+This library provides a class to query metadata of Youtube videos, playlists and channels.
+This doesn't require an API key and has no usage quotas.
+
+## Features from YoutubeExplode
+
+- Retrieve info about videos, playlists, channels, media streams, closed caption tracks.
+- Handles all types of videos, including legacy, signed, restricted, non-embeddable and unlisted videos
+- Downloads videos by exposing their media content as a stream
+- Parses and downloads closed caption tracks
+- All metadata properties are exposed using strong types and enums
+- Provides static methods to validate IDs and to parse IDs from URLs
+- No need for an API key and no usage quotas
+- All model extend `Equatable` to easily perform equality checks 
+
+## Features not implemented
+
+- Adaptive streams
+- Download streams functions.
+
+## Differences from YoutubeExplode
+
+- The entry point is `YoutubeExplode`, not `YoutubeClient`.
+- The `MediaStreamInfoSet` class has a `videoDetails` class which contains info about the video metadata (to avoid making several api calls).
+- The `ClosedCaption` has a `end` getter to get when a closed captions ends being displayed.
+
+## Install
+
+Add the dependency to the pubspec.yaml (Check for the latest version)
+```yaml
+youtube_explode_dart: ^0.0.9
+```
+
+Import the library
+```dart
+import 'package:youtube_explode_dart/youtube_explode_dart.dart';
+```
+
+# Usage
+
+To start using the API you need to initialize the `YoutubeExplode` class (which will create a new http client), and get (for example) the video id of the video you'd want to retrieve information, which usually is the `v` parameter.
+```dart
+var id = YoutubeExplode.parseVideoId('https://www.youtube.com/watch?v=OpQFFLBMEPI'); // Returns `OpQFFLBMEPI`
+
+var yt = YoutubeExplode();
+```
+
+## Get video metadata
+The [Video][Video] class contains info about the video such as the video title, the duration or the search keywords.
+ 
+```dart
+var video = yt.getVideo(id); // Returns a Video instance.
+```
+
+## Get video mediaStream
+The [MediaStreamsInfoSet][MediaStreamsInfoSet] contains the audio, video and muxed streams of the video. Each of the streams provides an url which can be used to download a video with a get request (See [example][VidExample]).
+```dart
+var mediaStreams = yt.getVideoMediaStream();
+
+var muxed = mediaStreams.muxed; // List of `MuxedStreamInfo` sorted by video quality.
+var audio = mediaStreams.audio; // List of `AudioStreamInfo` sorted by bitrate.
+var video = mediaStreams.video; // List of `VideoSteamInfo` sorted by video quality.
+
+var videoDetails = mediaStreams.videoDetails; //Returns a `Video` instance. Used to avoid calling `yt.getVideo`.
+```
+
+Be aware, the muxed streams don't hold the best quality, to achieve so, you'd need to merge the audio and video streams. 
+
+## Closed Captions
+To get the video closed caption it is need to query before the caption track infos, which can be used to retrieve the closed caption.
+
+```dart
+  var trackInfos = await yt.getVideoClosedCaptionTrackInfos(id); // Get the caption track infos
+  if (trackInfos.isEmpty) {
+    // No caption is available.
+    return;
+  }
+
+  var enTrack = trackInfos.firstWhere(
+      (e) => e.language.code == 'en'); // Find the english caption track.
+
+  if (enTrack == null) {
+    // The english track doesn't exist.
+    return;
+  }
+
+  var captionTrack = await yt.getClosedCaptionTrack(enTrack); // Get the english closed caption track 
+  var captions = captionTrack.captions; // List of ClosedCaption
+
+  captions.first; // Get the first displayed caption.
+  captions.getByTime(7); // Get the caption displayed at the 7th second.
+```
+
+## Cleanup
+You need to close `YoutubeExplode`'s http client when done otherwise this could halt the dart process.
 
 
-[YoutubeExplode]: https://github.com/Tyrrrz/YoutubeExplode/
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+```dart
+yt.close();
+```
+
+---
+Check the [api doc][API] for additional information.
+More features are provided thru extensions.
+
+[YoutubeExplode]: https://github.com/Tyrrrz/YoutubeExplode/
+
+[Video]: https://pub.dev/documentation/youtube_explode_dart/latest/youtube_explode/Video-class.html
+[MediaStreamsInfoSet]: https://pub.dev/documentation/youtube_explode_dart/latest/youtube_explode/MediaStreamInfoSet-class.html
+[VidExample]: https://github.com/Hexer10/youtube_explode_dart/blob/master/example/video_download.dart
+[API]: https://pub.dev/documentation/youtube_explode_dart/latest/youtube_explode/youtube_explode-library.html
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