Convert aac / webm to mp3 - FFMpeg [ionic]

Capacitor
7

I don’t use any package. I just call it directly using exec. This was created prior to the release of Laravel’s Process facade and before I knew about the File facade (a simple wrapper around PHP’s file functions that can be used outside of your Storage disks).

<?php

namespace App;

use Illuminate\Support\Collection;
use Illuminate\Support\Str;

class FfmpegHelper
{
    public static function normalizeVolume(string $file, bool $overwrite = true): void
    {
        $timestamp = time();
        $pathInfo = pathinfo($file);
        $newFile = "{$pathInfo['dirname']}/{$pathInfo['filename']}.{$timestamp}.mp3";
        $results = [];

        exec("ffmpeg -i $file -filter:a loudnorm=I=-16:dual_mono=true:TP=-1.5 -b:a 48K -ar 24000 $newFile 2>&1", $results);

        self::validateSuccess($results);

        if ($overwrite) {
            unlink($file);
            rename($newFile, $file);
        }
    }

    public static function concatAudio(Collection $filesToCombine, string $newFile): void
    {
        $allFiles = $filesToCombine->join('|');
        $results = [];

        exec("ffmpeg -i 'concat:{$allFiles}' -acodec copy {$newFile} 2>&1", $results);

        self::validateSuccess($results);
    }

    protected static function validateSuccess(array $results)
    {
        if (! Str::contains(strtolower(end($results)), 'audio:')) {
            throw new \Exception('ffmpeg exception: ' . implode('|', $results));
        }
    }
}