FFMpeg\Format\ProgressListener\AbstractProgressListener::initialize PHP Method

    private function initialize()
    {
        try {
            $format = $this->ffprobe->format($this->pathfile);
        } catch (RuntimeException $e) {
            return;
        }
        if (false === $format->has('size') || false === $format->has('duration')) {
            return;
        }
        $this->totalSize = $format->get('size') / 1024;
        $this->duration = $format->get('duration');
        $this->initialized = true;
    }