مشكلة في تحميل مقاطع الفيديو من اليوتيوب من خلال الروابط بواسطة flutter

فيما يتعلق بالرسالة التي تشير إلى تلف المقطع ، فمن المحتمل أن يكون ذلك بسبب عدم فك تشفير الفيديو أو كتابته بشكل صحيح في الملف. لإصلاح هذه المشكلة ، يمكنك محاولة استخدام مكتبة مثل flutter_video_compress أو video_player لفك تشفير الفيديو وتشغيله.

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_video_compress/flutter_video_compress.dart';
import 'package:path_provider/path_provider.dart';
import 'package:video_player/video_player.dart';

class DownloadPage extends StatefulWidget {
  @override
  _DownloadPageState createState() => _DownloadPageState();
}

class _DownloadPageState extends State<DownloadPage> {
  TextEditingController _linkController = TextEditingController();
  VideoPlayerController _videoPlayerController;
  bool _isLoading = false;
  double _progress = 0;

  Future<void> _downloadVideo(String link) async {
    setState(() {
      _isLoading = true;
    });

    final directory = await getTemporaryDirectory();
    final tempPath = directory.path + '/temp_video.mp4';

    var response = await http.get(Uri.parse(link));
    var file = File(tempPath);
    await file.writeAsBytes(response.bodyBytes);

    final videoCompress = FlutterVideoCompress();
    final result = await videoCompress.compressVideo(tempPath, quality: VideoQuality.LowQuality);
    final videoPath = result["videoPath"];

    _videoPlayerController = VideoPlayerController.file(File(videoPath))
      ..initialize().then((_) {
        setState(() {});
      });

    setState(() {
      _isLoading = false;
      _progress = 0;
    });

    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: Text('Download Complete'),
        content: Text('Video has been saved to $videoPath'),
        actions: [
          ElevatedButton(
            child: Text('OK'),
            onPressed: () {
              Navigator.of(context).pop();
            },
          ),
        ],
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Download Video'),
      ),
      body: Padding(
        padding: EdgeInsets.all(16.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            TextField(
              controller: _linkController,
              decoration: InputDecoration(
                hintText: 'Enter YouTube link',
              ),
            ),
            SizedBox(height: 16.0),
            _isLoading
                ? Column(
              children: [
                LinearProgressIndicator(
                  value: _progress,
                ),
                SizedBox(height: 16.0),
                Text('$_progress %'),
              ],
            )
                : ElevatedButton(
              child: Text('Download'),
              onPressed: () {
                _downloadVideo(_linkController.text);
              },
            ),
          ],
        ),
      ),
    );
  }
}