Devise\Pages\Fields\Handlers\VideoFieldUpdated::filename PHP Method

    protected function filename($values, $format)
    {
        $filepath = $values->video;
        $audioEncoding = $values->audioEncoding('acc');
        $width = $values->width(false);
        $height = $values->height(false);
        $upscale = $values->upscale(false) ? 'upscale' : false;
        $aspectMode = $values->aspectMode('preserve');
        $size = "{$width}x{$height}";
        $additionalUrl = $audioEncoding;
        $additionalUrl .= $width && $height ? "_{$size}" : '';
        $additionalUrl .= $upscale ? "_{$upscale}" : '';
        $additionalUrl .= $aspectMode ? "_{$aspectMode}" : '';
        $info = $this->MediaPaths->isUrlPath($filepath) ? $this->MediaPaths->fileVersionInfoFromUrl($filepath) : $this->MediaPaths->fileVersionInfo($filepath);
        return $this->MediaPaths->makeRelativePath("{$info->versiondir}/{$info->filename}_{$additionalUrl}.{$format}");
    }