memories/lib/ClustersBackend/FaceRecognitionBackend.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022 Varun Patil <radialapps@gmail.com>
* @author Varun Patil <radialapps@gmail.com>
* @license AGPL-3.0-or-later
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OCA\Memories\ClustersBackend;
use OCA\Memories\Db\TimelineQuery;
use OCA\Memories\Util;
use OCP\IConfig;
class FaceRecognitionBackend extends Backend
{
use PeopleBackendUtils;
protected TimelineQuery $timelineQuery;
protected IConfig $config;
public function __construct(
TimelineQuery $timelineQuery,
IConfig $config
) {
$this->timelineQuery = $timelineQuery;
$this->config = $config;
}
public function appName(): string
{
return 'Face Recognition';
}
public function isEnabled(): bool
{
return Util::facerecognitionIsInstalled()
&& Util::facerecognitionIsEnabled();
}
public function getClusters(): array
{
return array_merge(
$this->timelineQuery->getFaceRecognitionPersons($this->model()),
$this->timelineQuery->getFaceRecognitionClusters($this->model())
);
}
public function getPhotos(string $name, ?int $limit = null): array
{
return $this->timelineQuery->getFaceRecognitionPhotos($name, $this->model(), $limit) ?? [];
}
public function sortPhotosForPreview(array &$photos)
{
// Convert to recognize format (percentage position-size)
foreach ($photos as &$p) {
$p['x'] = (float) $p['x'] / (float) $p['image_width'];
$p['y'] = (float) $p['y'] / (float) $p['image_height'];
$p['width'] = (float) $p['width'] / (float) $p['image_width'];
$p['height'] = (float) $p['height'] / (float) $p['image_height'];
}
$this->sortByScores($photos);
}
public function getPreviewBlob($file, $photo): array
{
return $this->cropFace($file, $photo, 1.8);
}
public function getPreviewQuality(): int
{
return 2048;
}
private function model(): int
{
return (int) $this->config->getAppValue('facerecognition', 'model', -1);
}
}