ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
port, "%s", optbuf);
if (ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
port, "%s", optbuf);
if (ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,