copyVideoInput method
Implementation
Future<String> copyVideoInput() async {
Directory temporaryDirectory = await getTemporaryDirectory();
Directory directory = await Directory('${temporaryDirectory.path}/video/input').create(recursive: true);
File originalFile = File(widget.videoLink);
String filePath = '${directory.path}/${const Uuid().v4()}.mp4';
File newFile = await originalFile.copy(filePath);
return newFile.path;
}