Uploaded file is not saving to database - laravel

Question

I have created a form where you can upload video files, but I notice that when uploading it, video takes time to upload depending on the size of the file,so to avoid people staring at a screen for a long time waiting for their video to upload I will send them to a page that says "Your video is processing and will be available when ready".The video is indeed saving to the public app folder and also it saves to my aws3 bucket folder as I requested but I noticed that its not saving the file in the database and I don't know why it by passes the database. I am using laravel, ffmpeg to convert and compress videos and ajax. Can someone help me with this. here is my code below
//this the fileupload.blade.php
<div class="container">
<div class="card">
<div class="card-body">
<form method="POST" action="{{ route('fileUploadPost') }}" enctype="multipart/form-data">
#csrf
<div class="form-group">
<input name="file" id="poster" type="file" class="form-control">
<input type="submit" value="Submit" class="btn btn-success">
</div>
</form>
</div>
</div>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.js"></script>
<script src="http://malsup.github.com/jquery.form.js"></script>
<script type="text/javascript">
function validate(formData, jqForm, options) {
var form = jqForm[0];
if (!form.file.value) {
alert('File not found');
return false;
}
}
(function() {
$('form').ajaxForm({
uploadProgress: function(event, position, total, percentComplete) {
window.location.href = "complete";
},
success: function() {
},
complete: function(xhr) {
}
});
})();
</script>
//this is the controller
$request->validate([
'file' => 'required',
]);
$viddy=new Video;
$file = $request->file('file');
$fileName =uniqid().$file->getClientOriginalName();
$request->file->move(public_path('/app'), $fileName);
$name_file=uniqid().'video.mp4';
$ffp=FFMpeg::fromDisk('local')
->open($fileName)
->addFilter(function ($filters) {
$filters->resize(new \FFMpeg\Coordinate\Dimension(640, 480));
})
->export()
->toDisk('s3')
->inFormat(new \FFMpeg\Format\Video\X264('libmp3lame'))
->save($name_file);
$imageName = Storage::disk('s3')->url($name_file);
$viddy->title=$imageName;
$viddy->save();
return response()->json(['success'=>'You have successfully upload file.']);
}