pulsarvp/vps-tools

<?php
    namespace vps\tools\helpers;

    use Yii;

    /**
     * Class FFmpegHelper
     *
     * @package vps\tools\helpers
     */
    class FFmpegHelper
    {
        /**
         * Gets video file info. Filters parameters with $names keys if necessary.
         * ```php
         * $result = FFmpegHelper::info('/path/to/the/file.mp4', [ 'duration', 'bit_rate' ]);
         * ```
         *
         * @param string     $path
         * @param null|array $names
         * @return array
         */
        public static function info ($path, $names = null)
        {
            $data = [];

            $ffprobe = self::binpath('ffprobe');
            exec($ffprobe . ' ' . escapeshellarg($path) . ' -show_format -show_streams -v quiet', $format);

            $info = [];
            foreach ($format as $line)
            {
                preg_match("/(.*)\=(.*)/", $line, $match);
                if (count($match) == 3)
                    $info[ $match[ 1 ] ] = $match[ 2 ];
            }

            if (is_array($names))
            {
                foreach ($names as $name)
                {
                    $data[ $name ] = $info[ $name ] ?? null;
                }
            }
            else
                $data = $info;

            return $data;
        }

        /**
         * Finds path to binary executable file.
         * ```php
         * $path = FFmpegHelper::binpath('ffprobe');
         * ```
         *
         * @param string $name
         * @return null|string
         */
        private static function binpath ($name = 'ffprobe')
        {
            $path = null;

            if (Yii::$app->has('settings'))
                $path = Yii::$app->settings->get($name . 'path');

            if ($path == null)
                $path = trim(shell_exec('which ' . $name));

            if ($path == null)
            {
                $pathenvs = explode(':', getenv('PATH'));
                foreach ($pathenvs as $pathenv)
                    if (file_exists($pathenv . '/' . $name) and is_executable($pathenv . '/' . $name))
                        return $pathenv . '/' . $name;
            }

            return $path;
        }
    }