// получаем картинку с камер
$url="rtsp://192.168.1.53:554/user=admin_password=SFCA5L64_channel=1_stream=1.sdp?real_stream";
$jpg="/var/www/cached/snapshot.jpg";
exec('ffmpeg -y -i "'.$url.'" -f image2 -vframes 1 '.$jpg.'');

$telegram_module->sendImageToAdmin($jpg);