#include #include #include #include #include #include #include #include #include #include #include #include #include #define DRTP_TEST 0 struct log_info_cat rtp_test_cat[] = { [DRTP_TEST] = { .name = "DRTP_TEST", .description = "RPT-server test", .color = "\033[1;35m", .enabled = 1, .loglevel = LOGL_DEBUG, }, }; const struct log_info rtp_test_log_info = { .filter_fn = NULL, .cat = rtp_test_cat, .num_cat = ARRAY_SIZE(rtp_test_cat), }; static struct osmo_dgram *conn; static struct osmo_rtp_handle *rtp; int read_cb(struct osmo_dgram *conn) { struct msgb *msg; char dummy_data[RTP_PT_GSM_FULL_PAYLOAD_LEN] = "payload test"; struct rtp_hdr *rtph; LOGP(DRTP_TEST, LOGL_DEBUG, "received message from datagram\n"); msg = msgb_alloc(RTP_MSGB_SIZE, "RTP/test"); if (msg == NULL) { LOGP(DRTP_TEST, LOGL_ERROR, "cannot allocate message\n"); return -1; } if (osmo_dgram_recv(conn, msg) < 0) { LOGP(DRTP_TEST, LOGL_ERROR, "cannot receive message\n"); return -1; } rtph = osmo_rtp_get_hdr(msg); if (rtph == NULL) { msgb_free(msg); LOGP(DRTP_TEST, LOGL_ERROR, "cannot parse RTP message\n"); return -1; } LOGP(DLINP, LOGL_DEBUG, "received message with RTP payload type: %d\n", rtph->payload_type); /* * ... now build gsm_data_frame, set callref and msg_type based * on the rtp payload type (map RTP_PT_GSM_FULL to GSM_THCF_FRAME). * Then, pass it to the RSL layer. */ msg = msgb_alloc(1200, "RTP/test"); if (msg == NULL) { LOGP(DRTP_TEST, LOGL_ERROR, "cannot allocate message\n"); return -1; } /* build reply. */ msg = osmo_rtp_build(rtp, RTP_PT_GSM_FULL, RTP_PT_GSM_FULL_PAYLOAD_LEN, dummy_data, RTP_PT_GSM_FULL_DURATION); if (msg == NULL) { LOGP(DLINP, LOGL_ERROR, "OOM\n"); return -1; } osmo_dgram_send(conn, msg); return 0; } void sighandler(int foo) { LOGP(DLINP, LOGL_NOTICE, "closing RTP.\n"); osmo_dgram_close(conn); osmo_dgram_destroy(conn); osmo_rtp_handle_free(rtp); exit(EXIT_SUCCESS); } static void *tall_test; int main(int argc, char *argv[]) { signal(SIGINT, sighandler); tall_test = talloc_named_const(NULL, 1, "udp_rtp_test"); msgb_talloc_ctx_init(tall_test, 0); osmo_init_logging2(tall_test, &rtp_test_log_info); log_set_log_level(osmo_stderr_target, LOGL_DEBUG); /* * initialize RTP handler. */ rtp = osmo_rtp_handle_create(tall_test); if (rtp == NULL) { LOGP(DRTP_TEST, LOGL_ERROR, "Error init RTP handler\n"); exit(EXIT_FAILURE); } osmo_rtp_handle_tx_set_sequence(rtp, random()); osmo_rtp_handle_tx_set_ssrc(rtp, random()); osmo_rtp_handle_tx_set_timestamp(rtp, time(NULL)); /* * initialize datagram server. */ conn = osmo_dgram_create(tall_test); if (conn == NULL) { LOGP(DRTP_TEST, LOGL_ERROR, "cannot create UDP socket\n"); exit(EXIT_FAILURE); } osmo_dgram_set_local_addr(conn, "127.0.0.1"); osmo_dgram_set_local_port(conn, 20000); osmo_dgram_set_remote_addr(conn, "127.0.0.1"); osmo_dgram_set_remote_port(conn, 20001); osmo_dgram_set_read_cb(conn, read_cb); if (osmo_dgram_open(conn) < 0) { fprintf(stderr, "cannot open client\n"); exit(EXIT_FAILURE); } LOGP(DRTP_TEST, LOGL_NOTICE, "Entering main loop\n"); while(1) { osmo_select_main(0); } }