90 lines
2.6 KiB
Dart
90 lines
2.6 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:flutter/foundation.dart';
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import 'package:process_run/process_run.dart';
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import 'package:notube/models/video.dart';
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import 'package:path/path.dart' as p;
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class ConverterService {
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late Directory tempDir;
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late String assetName;
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late String ffmpegPath;
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ConverterService._();
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static Future<ConverterService> init() async {
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debugPrint('Initializing DLServices');
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var dlService = ConverterService._();
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await dlService._init();
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return dlService;
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}
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Future<void> _init() async {
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tempDir = await getTemporaryDirectory();
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assetName = 'ffmpeg.exe';
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await copyExecutable();
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}
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Future<void> copyExecutable() async {
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File tempFile = File('${tempDir.path}/$assetName');
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ByteData data = await rootBundle.load('assets/executable/$assetName');
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await tempFile.exists().then((value) {
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if (!value) {
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debugPrint('Copying $assetName to ${tempFile.path}');
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tempFile.writeAsBytes(
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data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
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}
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});
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ffmpegPath = tempFile.path;
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}
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Future<File?> getTmpFile(String filename) async {
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final Directory directory = Directory('temp');
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final List<FileSystemEntity> files = directory.listSync();
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for (FileSystemEntity file in files) {
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final String dirFilename = p.basenameWithoutExtension(file.path);
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debugPrint('dirFilename $dirFilename');
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debugPrint('filename $filename');
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if (dirFilename == '${filename}_tmp') {
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return File(file.path);
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}
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}
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return null;
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}
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Future<Stream> convertFile(Video video) async {
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debugPrint(
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'____Converting ${video.title} to ${video.format.format} format_____');
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File tmpFile = File('temp/${video.filename}_tmp.mp4');
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if (!tmpFile.existsSync()) {
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tmpFile = await getTmpFile(video.filename) ??
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File('temp/${video.filename}_tmp.mp4');
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}
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File doneFile =
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File('temp/${video.filename}_done.${video.format.extension}');
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if (doneFile.existsSync()) {
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debugPrint('File already converted');
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return Stream.fromIterable(['progress=end']);
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}
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var command =
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'-i "${tmpFile.path}" ${video.format.ffmpegCmd} "temp/${video.filename}_done.${video.format.extension}"';
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var shellLinesController = ShellLinesController();
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var shell = Shell(
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stdout: shellLinesController.sink, stderr: shellLinesController.sink);
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await shell.run('''
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$ffmpegPath $command
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''');
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return shellLinesController.stream;
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}
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}
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