<?php

/*
 * This file is part of PHP-FFmpeg.
 *
 * (c) Alchemy <info@alchemy.fr>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace BuddyBossPlatform\FFMpeg\Filters\Audio;

use BuddyBossPlatform\FFMpeg\Filters\Audio\AudioFilterInterface;
use BuddyBossPlatform\FFMpeg\Format\AudioInterface;
use BuddyBossPlatform\FFMpeg\Media\Audio;
class AddMetadataFilter implements AudioFilterInterface
{
    /** @var Array */
    private $metaArr;
    /** @var Integer */
    private $priority;
    function __construct($metaArr = null, $priority = 9)
    {
        $this->metaArr = $metaArr;
        $this->priority = $priority;
    }
    public function getPriority()
    {
        //must be of high priority in case theres a second input stream (artwork) to register with audio
        return $this->priority;
    }
    public function apply(Audio $audio, AudioInterface $format)
    {
        $meta = $this->metaArr;
        if (\is_null($meta)) {
            return ['-map_metadata', '-1', '-vn'];
        }
        $metadata = [];
        if (\array_key_exists("artwork", $meta)) {
            \array_push($metadata, "-i", $meta['artwork'], "-map", "0", "-map", "1");
            unset($meta['artwork']);
        }
        foreach ($meta as $k => $v) {
            \array_push($metadata, "-metadata", "{$k}={$v}");
        }
        return $metadata;
    }
}
