84 lines
2.1 KiB
Dart
84 lines
2.1 KiB
Dart
//TODO: Fixing the console printing.
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import 'dart:async';
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import 'dart:io';
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import 'package:console/console.dart';
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import 'package:youtube_explode_dart/youtube_explode_dart.dart';
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// Initialize the YoutubeExplode instance.
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final yt = YoutubeExplode();
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Future<void> main() async {
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stdout.writeln('Type the video id or url: ');
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var url = stdin.readLineSync()!.trim();
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// Save the video to the download directory.
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Directory('downloads').createSync();
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// Download the video.
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await download(url);
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yt.close();
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exit(0);
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}
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Future<void> download(String id) async {
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// Get video metadata.
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var video = await yt.videos.get(id);
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// Get the video manifest.
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var manifest = await yt.videos.streamsClient.getManifest(id);
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var streams = manifest.videoOnly;
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// Get the audio track with the highest bitrate.
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var audio = streams.first;
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var audioStream = yt.videos.streamsClient.get(audio);
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// Compose the file name removing the unallowed characters in windows.
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var fileName = '${video.title}.${audio.container.name}'
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.replaceAll(r'\', '')
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.replaceAll('/', '')
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.replaceAll('*', '')
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.replaceAll('?', '')
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.replaceAll('"', '')
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.replaceAll('<', '')
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.replaceAll('>', '')
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.replaceAll('|', '');
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var file = File('downloads/$fileName');
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// Delete the file if exists.
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if (file.existsSync()) {
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file.deleteSync();
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}
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// Open the file in writeAppend.
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var output = file.openWrite(mode: FileMode.writeOnlyAppend);
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// Track the file download status.
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var len = audio.size.totalBytes;
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var count = 0;
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// Create the message and set the cursor position.
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var msg = 'Downloading ${video.title}.${audio.container.name}';
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stdout.writeln(msg);
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// Listen for data received.
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var progressBar = ProgressBar();
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await for (final data in audioStream) {
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// Keep track of the current downloaded data.
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count += data.length;
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// Calculate the current progress.
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var progress = ((count / len) * 100).ceil();
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// Update the progressbar.
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progressBar.update(progress);
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// Write to file.
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output.add(data);
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}
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await output.close();
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}
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