| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #include <pjsua-lib/pjsua.h> |
| #include <pjsua-lib/pjsua_internal.h> |
| |
| |
| #define THIS_FILE "pjsua_media.c" |
| |
| #define DEFAULT_RTP_PORT 4000 |
| |
| #ifndef PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT |
| # define PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT 0 |
| #endif |
| |
| static void pjsua_media_config_dup(pj_pool_t *pool, |
| pjsua_media_config *dst, |
| const pjsua_media_config *src) |
| { |
| pj_memcpy(dst, src, sizeof(*src)); |
| pj_strdup(pool, &dst->turn_server, &src->turn_server); |
| pj_stun_auth_cred_dup(pool, &dst->turn_auth_cred, &src->turn_auth_cred); |
| } |
| |
| |
| /** |
| * Init media subsystems. |
| */ |
| pj_status_t pjsua_media_subsys_init(const pjsua_media_config *cfg) |
| { |
| pj_status_t status; |
| |
| pj_log_push_indent(); |
| |
| /* Specify which audio device settings are save-able */ |
| pjsua_var.aud_svmask = 0xFFFFFFFF; |
| /* These are not-settable */ |
| pjsua_var.aud_svmask &= ~(PJMEDIA_AUD_DEV_CAP_EXT_FORMAT | |
| PJMEDIA_AUD_DEV_CAP_INPUT_SIGNAL_METER | |
| PJMEDIA_AUD_DEV_CAP_OUTPUT_SIGNAL_METER); |
| /* EC settings use different API */ |
| pjsua_var.aud_svmask &= ~(PJMEDIA_AUD_DEV_CAP_EC | |
| PJMEDIA_AUD_DEV_CAP_EC_TAIL); |
| |
| /* Copy configuration */ |
| pjsua_media_config_dup(pjsua_var.pool, &pjsua_var.media_cfg, cfg); |
| |
| /* Normalize configuration */ |
| if (pjsua_var.media_cfg.snd_clock_rate == 0) { |
| pjsua_var.media_cfg.snd_clock_rate = pjsua_var.media_cfg.clock_rate; |
| } |
| |
| if (pjsua_var.media_cfg.has_ioqueue && |
| pjsua_var.media_cfg.thread_cnt == 0) |
| { |
| pjsua_var.media_cfg.thread_cnt = 1; |
| } |
| |
| if (pjsua_var.media_cfg.max_media_ports < pjsua_var.ua_cfg.max_calls) { |
| pjsua_var.media_cfg.max_media_ports = pjsua_var.ua_cfg.max_calls + 2; |
| } |
| |
| /* Create media endpoint. */ |
| status = pjmedia_endpt_create(&pjsua_var.cp.factory, |
| pjsua_var.media_cfg.has_ioqueue? NULL : |
| pjsip_endpt_get_ioqueue(pjsua_var.endpt), |
| pjsua_var.media_cfg.thread_cnt, |
| &pjsua_var.med_endpt); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, |
| "Media stack initialization has returned error", |
| status); |
| goto on_error; |
| } |
| |
| status = pjsua_aud_subsys_init(); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| #if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0) |
| /* Initialize SRTP library (ticket #788). */ |
| status = pjmedia_srtp_init_lib(pjsua_var.med_endpt); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Error initializing SRTP library", |
| status); |
| goto on_error; |
| } |
| #endif |
| |
| /* Video */ |
| #if PJMEDIA_HAS_VIDEO |
| status = pjsua_vid_subsys_init(); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| #endif |
| |
| pj_log_pop_indent(); |
| return PJ_SUCCESS; |
| |
| on_error: |
| pj_log_pop_indent(); |
| return status; |
| } |
| |
| /* |
| * Start pjsua media subsystem. |
| */ |
| pj_status_t pjsua_media_subsys_start(void) |
| { |
| pj_status_t status; |
| |
| pj_log_push_indent(); |
| |
| #if DISABLED_FOR_TICKET_1185 |
| /* Create media for calls, if none is specified */ |
| if (pjsua_var.calls[0].media[0].tp == NULL) { |
| pjsua_transport_config transport_cfg; |
| |
| /* Create default transport config */ |
| pjsua_transport_config_default(&transport_cfg); |
| transport_cfg.port = DEFAULT_RTP_PORT; |
| |
| status = pjsua_media_transports_create(&transport_cfg); |
| if (status != PJ_SUCCESS) { |
| pj_log_pop_indent(); |
| return status; |
| } |
| } |
| #endif |
| |
| /* Audio */ |
| status = pjsua_aud_subsys_start(); |
| if (status != PJ_SUCCESS) { |
| pj_log_pop_indent(); |
| return status; |
| } |
| |
| /* Video */ |
| #if PJMEDIA_HAS_VIDEO |
| status = pjsua_vid_subsys_start(); |
| if (status != PJ_SUCCESS) { |
| pjsua_aud_subsys_destroy(); |
| pj_log_pop_indent(); |
| return status; |
| } |
| #endif |
| |
| /* Perform NAT detection */ |
| if (pjsua_var.ua_cfg.stun_srv_cnt) { |
| status = pjsua_detect_nat_type(); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, "NAT type detection failed")); |
| } |
| } |
| |
| pj_log_pop_indent(); |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* |
| * Destroy pjsua media subsystem. |
| */ |
| pj_status_t pjsua_media_subsys_destroy(unsigned flags) |
| { |
| unsigned i; |
| |
| PJ_LOG(4,(THIS_FILE, "Shutting down media..")); |
| pj_log_push_indent(); |
| |
| if (pjsua_var.med_endpt) { |
| /* Wait for media endpoint's worker threads to quit. */ |
| pjmedia_endpt_stop_threads(pjsua_var.med_endpt); |
| |
| pjsua_aud_subsys_destroy(); |
| } |
| |
| /* Close media transports */ |
| for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) { |
| /* TODO: check if we're not allowed to send to network in the |
| * "flags", and if so do not do TURN allocation... |
| */ |
| PJ_UNUSED_ARG(flags); |
| pjsua_media_channel_deinit(i); |
| } |
| |
| /* Destroy media endpoint. */ |
| if (pjsua_var.med_endpt) { |
| |
| # if PJMEDIA_HAS_VIDEO |
| pjsua_vid_subsys_destroy(); |
| # endif |
| |
| pjmedia_endpt_destroy(pjsua_var.med_endpt); |
| pjsua_var.med_endpt = NULL; |
| |
| /* Deinitialize sound subsystem */ |
| // Not necessary, as pjmedia_snd_deinit() should have been called |
| // in pjmedia_endpt_destroy(). |
| //pjmedia_snd_deinit(); |
| } |
| |
| pj_log_pop_indent(); |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* |
| * Create RTP and RTCP socket pair, and possibly resolve their public |
| * address via STUN. |
| */ |
| static pj_status_t create_rtp_rtcp_sock(pjsua_call_media *call_med, |
| const pjsua_transport_config *cfg, |
| pjmedia_sock_info *skinfo) |
| { |
| enum { |
| RTP_RETRY = 100 |
| }; |
| int i; |
| pj_bool_t use_ipv6; |
| int af; |
| pj_sockaddr bound_addr; |
| pj_sockaddr mapped_addr[2]; |
| pj_status_t status = PJ_SUCCESS; |
| char addr_buf[PJ_INET6_ADDRSTRLEN+10]; |
| pjsua_acc *acc = &pjsua_var.acc[call_med->call->acc_id]; |
| pj_sock_t sock[2]; |
| |
| use_ipv6 = (acc->cfg.ipv6_media_use != PJSUA_IPV6_DISABLED); |
| af = use_ipv6 ? pj_AF_INET6() : pj_AF_INET(); |
| |
| /* Make sure STUN server resolution has completed */ |
| if (!use_ipv6 && pjsua_sip_acc_is_using_stun(call_med->call->acc_id)) { |
| status = resolve_stun_server(PJ_TRUE); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Error resolving STUN server", status); |
| return status; |
| } |
| } |
| |
| if (acc->next_rtp_port == 0) |
| acc->next_rtp_port = (pj_uint16_t)cfg->port; |
| |
| if (acc->next_rtp_port == 0) |
| acc->next_rtp_port = (pj_uint16_t)DEFAULT_RTP_PORT; |
| |
| for (i=0; i<2; ++i) |
| sock[i] = PJ_INVALID_SOCKET; |
| |
| pj_sockaddr_init(af, &bound_addr, NULL, 0); |
| if (cfg->bound_addr.slen) { |
| status = pj_sockaddr_set_str_addr(af, &bound_addr, &cfg->bound_addr); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Unable to resolve transport bind address", |
| status); |
| return status; |
| } |
| } |
| |
| /* Loop retry to bind RTP and RTCP sockets. */ |
| for (i=0; i<RTP_RETRY; ++i, acc->next_rtp_port += 2) { |
| |
| if (cfg->port > 0 && cfg->port_range > 0 && |
| (acc->next_rtp_port > cfg->port + cfg->port_range || |
| acc->next_rtp_port < cfg->port)) |
| { |
| acc->next_rtp_port = (pj_uint16_t)cfg->port; |
| } |
| |
| /* Create RTP socket. */ |
| status = pj_sock_socket(af, pj_SOCK_DGRAM(), 0, &sock[0]); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "socket() error", status); |
| return status; |
| } |
| |
| /* Apply QoS to RTP socket, if specified */ |
| status = pj_sock_apply_qos2(sock[0], cfg->qos_type, |
| &cfg->qos_params, |
| 2, THIS_FILE, "RTP socket"); |
| |
| /* Bind RTP socket */ |
| pj_sockaddr_set_port(&bound_addr, acc->next_rtp_port); |
| status=pj_sock_bind(sock[0], &bound_addr, |
| pj_sockaddr_get_len(&bound_addr)); |
| if (status != PJ_SUCCESS) { |
| pj_sock_close(sock[0]); |
| sock[0] = PJ_INVALID_SOCKET; |
| continue; |
| } |
| |
| /* Create RTCP socket. */ |
| status = pj_sock_socket(af, pj_SOCK_DGRAM(), 0, &sock[1]); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "socket() error", status); |
| pj_sock_close(sock[0]); |
| return status; |
| } |
| |
| /* Apply QoS to RTCP socket, if specified */ |
| status = pj_sock_apply_qos2(sock[1], cfg->qos_type, |
| &cfg->qos_params, |
| 2, THIS_FILE, "RTCP socket"); |
| |
| /* Bind RTCP socket */ |
| pj_sockaddr_set_port(&bound_addr, (pj_uint16_t)(acc->next_rtp_port+1)); |
| status=pj_sock_bind(sock[1], &bound_addr, |
| pj_sockaddr_get_len(&bound_addr)); |
| if (status != PJ_SUCCESS) { |
| pj_sock_close(sock[0]); |
| sock[0] = PJ_INVALID_SOCKET; |
| |
| pj_sock_close(sock[1]); |
| sock[1] = PJ_INVALID_SOCKET; |
| continue; |
| } |
| |
| /* |
| * If we're configured to use STUN, then find out the mapped address, |
| * and make sure that the mapped RTCP port is adjacent with the RTP. |
| */ |
| if (!use_ipv6 && pjsua_sip_acc_is_using_stun(call_med->call->acc_id) && |
| pjsua_var.stun_srv.addr.sa_family != 0) |
| { |
| char ip_addr[32]; |
| pj_str_t stun_srv; |
| pj_sockaddr_in resolved_addr[2]; |
| pjstun_setting stun_opt; |
| |
| pj_ansi_strcpy(ip_addr, |
| pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr)); |
| stun_srv = pj_str(ip_addr); |
| |
| pj_bzero(&stun_opt, sizeof(stun_opt)); |
| stun_opt.use_stun2 = pjsua_var.ua_cfg.stun_map_use_stun2; |
| stun_opt.srv1 = stun_opt.srv2 = stun_srv; |
| stun_opt.port1 = stun_opt.port2 = |
| pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port); |
| status=pjstun_get_mapped_addr2(&pjsua_var.cp.factory, &stun_opt, |
| 2, sock, resolved_addr); |
| #if defined(PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT) && \ |
| PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT!=0 |
| /* Handle EPIPE (Broken Pipe) error, which happens on UDP socket |
| * after app wakes up from suspended state. In this case, simply |
| * just retry. |
| * P.S.: The magic status is PJ_STATUS_FROM_OS(EPIPE) |
| */ |
| if (status == 120032) { |
| PJ_LOG(4,(THIS_FILE, "Got EPIPE error, retrying..")); |
| pj_sock_close(sock[0]); |
| sock[0] = PJ_INVALID_SOCKET; |
| |
| pj_sock_close(sock[1]); |
| sock[1] = PJ_INVALID_SOCKET; |
| |
| continue; |
| } |
| else |
| #endif |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "STUN resolve error", status); |
| goto on_error; |
| } |
| |
| pj_sockaddr_cp(&mapped_addr[0], &resolved_addr[0]); |
| pj_sockaddr_cp(&mapped_addr[1], &resolved_addr[1]); |
| |
| #if PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT |
| if (pj_sockaddr_get_port(&mapped_addr[1]) == |
| pj_sockaddr_get_port(&mapped_addr[0])+1) |
| { |
| /* Success! */ |
| break; |
| } |
| |
| pj_sock_close(sock[0]); |
| sock[0] = PJ_INVALID_SOCKET; |
| |
| pj_sock_close(sock[1]); |
| sock[1] = PJ_INVALID_SOCKET; |
| #else |
| if (pj_sockaddr_get_port(&mapped_addr[1]) != |
| pj_sockaddr_get_port(&mapped_addr[0])+1) |
| { |
| PJ_LOG(4,(THIS_FILE, |
| "Note: STUN mapped RTCP port %d is not adjacent" |
| " to RTP port %d", |
| pj_sockaddr_get_port(&mapped_addr[1]), |
| pj_sockaddr_get_port(&mapped_addr[0]))); |
| } |
| /* Success! */ |
| break; |
| #endif |
| |
| } else if (cfg->public_addr.slen) { |
| |
| status = pj_sockaddr_init(af, &mapped_addr[0], &cfg->public_addr, |
| (pj_uint16_t)acc->next_rtp_port); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| status = pj_sockaddr_init(af, &mapped_addr[1], &cfg->public_addr, |
| (pj_uint16_t)(acc->next_rtp_port+1)); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| break; |
| |
| } else { |
| if (acc->cfg.allow_sdp_nat_rewrite && acc->reg_mapped_addr.slen) { |
| pj_status_t status; |
| |
| /* Take the address from mapped addr as seen by registrar */ |
| status = pj_sockaddr_set_str_addr(af, &bound_addr, |
| &acc->reg_mapped_addr); |
| if (status != PJ_SUCCESS) { |
| /* just leave bound_addr with whatever it was |
| pj_bzero(pj_sockaddr_get_addr(&bound_addr), |
| pj_sockaddr_get_addr_len(&bound_addr)); |
| */ |
| } |
| } |
| |
| if (!pj_sockaddr_has_addr(&bound_addr)) { |
| pj_sockaddr addr; |
| |
| /* Get local IP address. */ |
| status = pj_gethostip(af, &addr); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| pj_sockaddr_copy_addr(&bound_addr, &addr); |
| } |
| |
| for (i=0; i<2; ++i) { |
| pj_sockaddr_init(af, &mapped_addr[i], NULL, 0); |
| pj_sockaddr_copy_addr(&mapped_addr[i], &bound_addr); |
| pj_sockaddr_set_port(&mapped_addr[i], |
| (pj_uint16_t)(acc->next_rtp_port+i)); |
| } |
| |
| break; |
| } |
| } |
| |
| if (sock[0] == PJ_INVALID_SOCKET) { |
| PJ_LOG(1,(THIS_FILE, |
| "Unable to find appropriate RTP/RTCP ports combination")); |
| goto on_error; |
| } |
| |
| |
| skinfo->rtp_sock = sock[0]; |
| pj_sockaddr_cp(&skinfo->rtp_addr_name, &mapped_addr[0]); |
| |
| skinfo->rtcp_sock = sock[1]; |
| pj_sockaddr_cp(&skinfo->rtcp_addr_name, &mapped_addr[1]); |
| |
| PJ_LOG(4,(THIS_FILE, "RTP socket reachable at %s", |
| pj_sockaddr_print(&skinfo->rtp_addr_name, addr_buf, |
| sizeof(addr_buf), 3))); |
| PJ_LOG(4,(THIS_FILE, "RTCP socket reachable at %s", |
| pj_sockaddr_print(&skinfo->rtcp_addr_name, addr_buf, |
| sizeof(addr_buf), 3))); |
| |
| acc->next_rtp_port += 2; |
| return PJ_SUCCESS; |
| |
| on_error: |
| for (i=0; i<2; ++i) { |
| if (sock[i] != PJ_INVALID_SOCKET) |
| pj_sock_close(sock[i]); |
| } |
| return status; |
| } |
| |
| /* Create normal UDP media transports */ |
| static pj_status_t create_udp_media_transport(const pjsua_transport_config *cfg, |
| pjsua_call_media *call_med) |
| { |
| pjmedia_sock_info skinfo; |
| pj_status_t status; |
| |
| status = create_rtp_rtcp_sock(call_med, cfg, &skinfo); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Unable to create RTP/RTCP socket", |
| status); |
| goto on_error; |
| } |
| |
| status = pjmedia_transport_udp_attach(pjsua_var.med_endpt, NULL, |
| &skinfo, 0, &call_med->tp); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Unable to create media transport", |
| status); |
| goto on_error; |
| } |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING, |
| pjsua_var.media_cfg.tx_drop_pct); |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING, |
| pjsua_var.media_cfg.rx_drop_pct); |
| |
| call_med->tp_ready = PJ_SUCCESS; |
| |
| return PJ_SUCCESS; |
| |
| on_error: |
| if (call_med->tp) |
| pjmedia_transport_close(call_med->tp); |
| |
| return status; |
| } |
| |
| #if DISABLED_FOR_TICKET_1185 |
| /* Create normal UDP media transports */ |
| static pj_status_t create_udp_media_transports(pjsua_transport_config *cfg) |
| { |
| unsigned i; |
| pj_status_t status; |
| |
| for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| status = create_udp_media_transport(cfg, &call_med->tp); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| } |
| } |
| |
| return PJ_SUCCESS; |
| |
| on_error: |
| for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| if (call_med->tp) { |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| } |
| } |
| } |
| return status; |
| } |
| #endif |
| |
| /* Deferred callback to notify ICE init complete */ |
| static void ice_init_complete_cb(void *user_data) |
| { |
| pjsua_call_media *call_med = (pjsua_call_media*)user_data; |
| |
| if (call_med->call == NULL) |
| return; |
| |
| /* No need to acquire_call() if we only change the tp_ready flag |
| * (i.e. transport is being created synchronously). Otherwise |
| * calling acquire_call() here may cause deadlock. See |
| * https://trac.pjsip.org/repos/ticket/1578 |
| */ |
| call_med->tp_ready = call_med->tp_result; |
| |
| if (call_med->med_create_cb) { |
| pjsua_call *call = NULL; |
| pjsip_dialog *dlg = NULL; |
| |
| if (acquire_call("ice_init_complete_cb", call_med->call->index, |
| &call, &dlg) != PJ_SUCCESS) |
| { |
| /* Call have been terminated */ |
| return; |
| } |
| |
| (*call_med->med_create_cb)(call_med, call_med->tp_ready, |
| call_med->call->secure_level, NULL); |
| |
| if (dlg) |
| pjsip_dlg_dec_lock(dlg); |
| } |
| } |
| |
| /* Deferred callback to notify ICE negotiation failure */ |
| static void ice_failed_nego_cb(void *user_data) |
| { |
| int call_id = (int)(pj_ssize_t)user_data; |
| pjsua_call *call = NULL; |
| pjsip_dialog *dlg = NULL; |
| |
| if (acquire_call("ice_failed_nego_cb", call_id, |
| &call, &dlg) != PJ_SUCCESS) |
| { |
| /* Call have been terminated */ |
| return; |
| } |
| |
| pjsua_var.ua_cfg.cb.on_call_media_state(call_id); |
| |
| if (dlg) |
| pjsip_dlg_dec_lock(dlg); |
| |
| } |
| |
| /* This callback is called when ICE negotiation completes */ |
| static void on_ice_complete(pjmedia_transport *tp, |
| pj_ice_strans_op op, |
| pj_status_t result) |
| { |
| pjsua_call_media *call_med = (pjsua_call_media*)tp->user_data; |
| pjsua_call *call; |
| |
| if (!call_med) |
| return; |
| |
| call = call_med->call; |
| |
| switch (op) { |
| case PJ_ICE_STRANS_OP_INIT: |
| call_med->tp_result = result; |
| pjsua_schedule_timer2(&ice_init_complete_cb, call_med, 1); |
| break; |
| case PJ_ICE_STRANS_OP_NEGOTIATION: |
| if (result == PJ_SUCCESS) { |
| /* Update RTP address */ |
| pjmedia_transport_info tpinfo; |
| pjmedia_transport_info_init(&tpinfo); |
| pjmedia_transport_get_info(call_med->tp, &tpinfo); |
| pj_sockaddr_cp(&call_med->rtp_addr, &tpinfo.sock_info.rtp_addr_name); |
| } else { |
| call_med->state = PJSUA_CALL_MEDIA_ERROR; |
| call_med->dir = PJMEDIA_DIR_NONE; |
| if (call && pjsua_var.ua_cfg.cb.on_call_media_state) { |
| /* Defer the callback to a timer */ |
| pjsua_schedule_timer2(&ice_failed_nego_cb, |
| (void*)(pj_ssize_t)call->index, 1); |
| } |
| } |
| /* Check if default ICE transport address is changed */ |
| call->reinv_ice_sent = PJ_FALSE; |
| pjsua_call_schedule_reinvite_check(call, 0); |
| break; |
| case PJ_ICE_STRANS_OP_KEEP_ALIVE: |
| if (result != PJ_SUCCESS) { |
| PJ_PERROR(4,(THIS_FILE, result, |
| "ICE keep alive failure for transport %d:%d", |
| call->index, call_med->idx)); |
| } |
| if (pjsua_var.ua_cfg.cb.on_call_media_transport_state) { |
| pjsua_med_tp_state_info info; |
| |
| pj_bzero(&info, sizeof(info)); |
| info.med_idx = call_med->idx; |
| info.state = call_med->tp_st; |
| info.status = result; |
| info.ext_info = &op; |
| (*pjsua_var.ua_cfg.cb.on_call_media_transport_state)( |
| call->index, &info); |
| } |
| if (pjsua_var.ua_cfg.cb.on_ice_transport_error) { |
| pjsua_call_id id = call->index; |
| (*pjsua_var.ua_cfg.cb.on_ice_transport_error)(id, op, result, |
| NULL); |
| } |
| break; |
| } |
| } |
| |
| |
| /* Parse "HOST:PORT" format */ |
| static pj_status_t parse_host_port(const pj_str_t *host_port, |
| pj_str_t *host, pj_uint16_t *port) |
| { |
| pj_str_t str_port; |
| |
| str_port.ptr = pj_strchr(host_port, ':'); |
| if (str_port.ptr != NULL) { |
| int iport; |
| |
| host->ptr = host_port->ptr; |
| host->slen = (str_port.ptr - host->ptr); |
| str_port.ptr++; |
| str_port.slen = host_port->slen - host->slen - 1; |
| iport = (int)pj_strtoul(&str_port); |
| if (iport < 1 || iport > 65535) |
| return PJ_EINVAL; |
| *port = (pj_uint16_t)iport; |
| } else { |
| *host = *host_port; |
| *port = 0; |
| } |
| |
| return PJ_SUCCESS; |
| } |
| |
| /* Create ICE media transports (when ice is enabled) */ |
| static pj_status_t create_ice_media_transport( |
| const pjsua_transport_config *cfg, |
| pjsua_call_media *call_med, |
| pj_bool_t async) |
| { |
| char stunip[PJ_INET6_ADDRSTRLEN]; |
| pjsua_acc_config *acc_cfg; |
| pj_ice_strans_cfg ice_cfg; |
| pjmedia_ice_cb ice_cb; |
| char name[32]; |
| unsigned comp_cnt; |
| pj_status_t status; |
| |
| acc_cfg = &pjsua_var.acc[call_med->call->acc_id].cfg; |
| |
| /* Make sure STUN server resolution has completed */ |
| status = resolve_stun_server(PJ_TRUE); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Error resolving STUN server", status); |
| return status; |
| } |
| |
| /* Create ICE stream transport configuration */ |
| pj_ice_strans_cfg_default(&ice_cfg); |
| pj_stun_config_init(&ice_cfg.stun_cfg, &pjsua_var.cp.factory, 0, |
| pjsip_endpt_get_ioqueue(pjsua_var.endpt), |
| pjsip_endpt_get_timer_heap(pjsua_var.endpt)); |
| |
| ice_cfg.af = pj_AF_INET(); |
| ice_cfg.resolver = pjsua_var.resolver; |
| |
| ice_cfg.opt = acc_cfg->ice_cfg.ice_opt; |
| |
| /* Configure STUN settings */ |
| if (pj_sockaddr_has_addr(&pjsua_var.stun_srv)) { |
| pj_sockaddr_print(&pjsua_var.stun_srv, stunip, sizeof(stunip), 0); |
| ice_cfg.stun.server = pj_str(stunip); |
| ice_cfg.stun.port = pj_sockaddr_get_port(&pjsua_var.stun_srv); |
| } |
| if (acc_cfg->ice_cfg.ice_max_host_cands >= 0) |
| ice_cfg.stun.max_host_cands = acc_cfg->ice_cfg.ice_max_host_cands; |
| |
| /* Copy binding port setting to STUN setting */ |
| pj_sockaddr_init(ice_cfg.af, &ice_cfg.stun.cfg.bound_addr, |
| &cfg->bound_addr, (pj_uint16_t)cfg->port); |
| ice_cfg.stun.cfg.port_range = (pj_uint16_t)cfg->port_range; |
| if (cfg->port != 0 && ice_cfg.stun.cfg.port_range == 0) |
| ice_cfg.stun.cfg.port_range = |
| (pj_uint16_t)(pjsua_var.ua_cfg.max_calls * 10); |
| |
| /* Copy QoS setting to STUN setting */ |
| ice_cfg.stun.cfg.qos_type = cfg->qos_type; |
| pj_memcpy(&ice_cfg.stun.cfg.qos_params, &cfg->qos_params, |
| sizeof(cfg->qos_params)); |
| |
| /* Configure TURN settings */ |
| if (acc_cfg->turn_cfg.enable_turn) { |
| status = parse_host_port(&acc_cfg->turn_cfg.turn_server, |
| &ice_cfg.turn.server, |
| &ice_cfg.turn.port); |
| if (status != PJ_SUCCESS || ice_cfg.turn.server.slen == 0) { |
| PJ_LOG(1,(THIS_FILE, "Invalid TURN server setting")); |
| return PJ_EINVAL; |
| } |
| if (ice_cfg.turn.port == 0) |
| ice_cfg.turn.port = 3479; |
| ice_cfg.turn.conn_type = acc_cfg->turn_cfg.turn_conn_type; |
| pj_memcpy(&ice_cfg.turn.auth_cred, |
| &acc_cfg->turn_cfg.turn_auth_cred, |
| sizeof(ice_cfg.turn.auth_cred)); |
| |
| /* Copy QoS setting to TURN setting */ |
| ice_cfg.turn.cfg.qos_type = cfg->qos_type; |
| pj_memcpy(&ice_cfg.turn.cfg.qos_params, &cfg->qos_params, |
| sizeof(cfg->qos_params)); |
| |
| /* Copy binding port setting to TURN setting */ |
| pj_sockaddr_init(ice_cfg.af, &ice_cfg.turn.cfg.bound_addr, |
| &cfg->bound_addr, (pj_uint16_t)cfg->port); |
| ice_cfg.turn.cfg.port_range = (pj_uint16_t)cfg->port_range; |
| if (cfg->port != 0 && ice_cfg.turn.cfg.port_range == 0) |
| ice_cfg.turn.cfg.port_range = |
| (pj_uint16_t)(pjsua_var.ua_cfg.max_calls * 10); |
| } |
| |
| /* Configure packet size for STUN and TURN sockets */ |
| ice_cfg.stun.cfg.max_pkt_size = PJMEDIA_MAX_MRU; |
| ice_cfg.turn.cfg.max_pkt_size = PJMEDIA_MAX_MRU; |
| |
| pj_bzero(&ice_cb, sizeof(pjmedia_ice_cb)); |
| ice_cb.on_ice_complete = &on_ice_complete; |
| pj_ansi_snprintf(name, sizeof(name), "icetp%02d", call_med->idx); |
| call_med->tp_ready = PJ_EPENDING; |
| |
| comp_cnt = 1; |
| if (PJMEDIA_ADVERTISE_RTCP && !acc_cfg->ice_cfg.ice_no_rtcp) |
| ++comp_cnt; |
| |
| status = pjmedia_ice_create3(pjsua_var.med_endpt, name, comp_cnt, |
| &ice_cfg, &ice_cb, 0, call_med, |
| &call_med->tp); |
| if (status != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Unable to create ICE media transport", |
| status); |
| goto on_error; |
| } |
| |
| /* Wait until transport is initialized, or time out */ |
| if (!async) { |
| pj_bool_t has_pjsua_lock = PJSUA_LOCK_IS_LOCKED(); |
| if (has_pjsua_lock) |
| PJSUA_UNLOCK(); |
| while (call_med->tp_ready == PJ_EPENDING) { |
| pjsua_handle_events(100); |
| } |
| if (has_pjsua_lock) |
| PJSUA_LOCK(); |
| } |
| |
| if (async && call_med->tp_ready == PJ_EPENDING) { |
| return PJ_EPENDING; |
| } else if (call_med->tp_ready != PJ_SUCCESS) { |
| pjsua_perror(THIS_FILE, "Error initializing ICE media transport", |
| call_med->tp_ready); |
| status = call_med->tp_ready; |
| goto on_error; |
| } |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING, |
| pjsua_var.media_cfg.tx_drop_pct); |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING, |
| pjsua_var.media_cfg.rx_drop_pct); |
| |
| return PJ_SUCCESS; |
| |
| on_error: |
| if (call_med->tp != NULL) { |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| } |
| |
| return status; |
| } |
| |
| #if DISABLED_FOR_TICKET_1185 |
| /* Create ICE media transports (when ice is enabled) */ |
| static pj_status_t create_ice_media_transports(pjsua_transport_config *cfg) |
| { |
| unsigned i; |
| pj_status_t status; |
| |
| for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| status = create_ice_media_transport(cfg, call_med); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| } |
| } |
| |
| return PJ_SUCCESS; |
| |
| on_error: |
| for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| if (call_med->tp) { |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| } |
| } |
| } |
| return status; |
| } |
| #endif |
| |
| #if DISABLED_FOR_TICKET_1185 |
| /* |
| * Create media transports for all the calls. This function creates |
| * one UDP media transport for each call. |
| */ |
| PJ_DEF(pj_status_t) pjsua_media_transports_create( |
| const pjsua_transport_config *app_cfg) |
| { |
| pjsua_transport_config cfg; |
| unsigned i; |
| pj_status_t status; |
| |
| |
| /* Make sure pjsua_init() has been called */ |
| PJ_ASSERT_RETURN(pjsua_var.ua_cfg.max_calls>0, PJ_EINVALIDOP); |
| |
| PJSUA_LOCK(); |
| |
| /* Delete existing media transports */ |
| for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| if (call_med->tp && call_med->tp_auto_del) { |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| call_med->tp_orig = NULL; |
| } |
| } |
| } |
| |
| /* Copy config */ |
| pjsua_transport_config_dup(pjsua_var.pool, &cfg, app_cfg); |
| |
| /* Create the transports */ |
| if (pjsua_var.ice_cfg.enable_ice) { |
| status = create_ice_media_transports(&cfg); |
| } else { |
| status = create_udp_media_transports(&cfg); |
| } |
| |
| /* Set media transport auto_delete to True */ |
| for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| call_med->tp_auto_del = PJ_TRUE; |
| } |
| } |
| |
| PJSUA_UNLOCK(); |
| |
| return status; |
| } |
| |
| /* |
| * Attach application's created media transports. |
| */ |
| PJ_DEF(pj_status_t) pjsua_media_transports_attach(pjsua_media_transport tp[], |
| unsigned count, |
| pj_bool_t auto_delete) |
| { |
| unsigned i; |
| |
| PJ_ASSERT_RETURN(tp && count==pjsua_var.ua_cfg.max_calls, PJ_EINVAL); |
| |
| /* Assign the media transports */ |
| for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) { |
| pjsua_call *call = &pjsua_var.calls[i]; |
| unsigned strm_idx; |
| |
| for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) { |
| pjsua_call_media *call_med = &call->media[strm_idx]; |
| |
| if (call_med->tp && call_med->tp_auto_del) { |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| call_med->tp_orig = NULL; |
| } |
| } |
| |
| PJ_TODO(remove_pjsua_media_transports_attach); |
| |
| call->media[0].tp = tp[i].transport; |
| call->media[0].tp_auto_del = auto_delete; |
| } |
| |
| return PJ_SUCCESS; |
| } |
| #endif |
| |
| /* Go through the list of media in the SDP, find acceptable media, and |
| * sort them based on the "quality" of the media, and store the indexes |
| * in the specified array. Media with the best quality will be listed |
| * first in the array. The quality factors considered currently is |
| * encryption. |
| */ |
| static void sort_media(const pjmedia_sdp_session *sdp, |
| const pj_str_t *type, |
| pjmedia_srtp_use use_srtp, |
| pj_uint8_t midx[], |
| unsigned *p_count, |
| unsigned *p_total_count) |
| { |
| unsigned i; |
| unsigned count = 0; |
| int score[PJSUA_MAX_CALL_MEDIA]; |
| |
| pj_assert(*p_count >= PJSUA_MAX_CALL_MEDIA); |
| pj_assert(*p_total_count >= PJSUA_MAX_CALL_MEDIA); |
| |
| *p_count = 0; |
| *p_total_count = 0; |
| for (i=0; i<PJSUA_MAX_CALL_MEDIA; ++i) |
| score[i] = 1; |
| |
| /* Score each media */ |
| for (i=0; i<sdp->media_count && count<PJSUA_MAX_CALL_MEDIA; ++i) { |
| const pjmedia_sdp_media *m = sdp->media[i]; |
| const pjmedia_sdp_conn *c; |
| |
| /* Skip different media */ |
| if (pj_stricmp(&m->desc.media, type) != 0) { |
| score[count++] = -22000; |
| continue; |
| } |
| |
| c = m->conn? m->conn : sdp->conn; |
| |
| /* Supported transports */ |
| if (pj_stricmp2(&m->desc.transport, "RTP/SAVP")==0) { |
| switch (use_srtp) { |
| case PJMEDIA_SRTP_MANDATORY: |
| case PJMEDIA_SRTP_OPTIONAL: |
| ++score[i]; |
| break; |
| case PJMEDIA_SRTP_DISABLED: |
| //--score[i]; |
| score[i] -= 5; |
| break; |
| } |
| } else if (pj_stricmp2(&m->desc.transport, "RTP/AVP")==0) { |
| switch (use_srtp) { |
| case PJMEDIA_SRTP_MANDATORY: |
| //--score[i]; |
| score[i] -= 5; |
| break; |
| case PJMEDIA_SRTP_OPTIONAL: |
| /* No change in score */ |
| break; |
| case PJMEDIA_SRTP_DISABLED: |
| ++score[i]; |
| break; |
| } |
| } else { |
| score[i] -= 10; |
| } |
| |
| /* Is media disabled? */ |
| if (m->desc.port == 0) |
| score[i] -= 10; |
| |
| /* Is media inactive? */ |
| if (pjmedia_sdp_media_find_attr2(m, "inactive", NULL) || |
| pj_strcmp2(&c->addr, "0.0.0.0") == 0) |
| { |
| //score[i] -= 10; |
| score[i] -= 1; |
| } |
| |
| ++count; |
| } |
| |
| /* Created sorted list based on quality */ |
| for (i=0; i<count; ++i) { |
| unsigned j; |
| int best = 0; |
| |
| for (j=1; j<count; ++j) { |
| if (score[j] > score[best]) |
| best = j; |
| } |
| /* Don't put media with negative score, that media is unacceptable |
| * for us. |
| */ |
| midx[i] = (pj_uint8_t)best; |
| if (score[best] >= 0) |
| (*p_count)++; |
| if (score[best] > -22000) |
| (*p_total_count)++; |
| |
| score[best] = -22000; |
| |
| } |
| } |
| |
| /* Callback to receive media events */ |
| pj_status_t call_media_on_event(pjmedia_event *event, |
| void *user_data) |
| { |
| pjsua_call_media *call_med = (pjsua_call_media*)user_data; |
| pjsua_call *call = call_med->call; |
| pj_status_t status = PJ_SUCCESS; |
| |
| switch(event->type) { |
| case PJMEDIA_EVENT_KEYFRAME_MISSING: |
| if (call->opt.req_keyframe_method & PJSUA_VID_REQ_KEYFRAME_SIP_INFO) |
| { |
| pj_timestamp now; |
| |
| pj_get_timestamp(&now); |
| if (pj_elapsed_msec(&call_med->last_req_keyframe, &now) >= |
| PJSUA_VID_REQ_KEYFRAME_INTERVAL) |
| { |
| pjsua_msg_data msg_data; |
| const pj_str_t SIP_INFO = {"INFO", 4}; |
| const char *BODY_TYPE = "application/media_control+xml"; |
| const char *BODY = |
| "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" |
| "<media_control><vc_primitive><to_encoder>" |
| "<picture_fast_update/>" |
| "</to_encoder></vc_primitive></media_control>"; |
| |
| PJ_LOG(4,(THIS_FILE, |
| "Sending video keyframe request via SIP INFO")); |
| |
| pjsua_msg_data_init(&msg_data); |
| pj_cstr(&msg_data.content_type, BODY_TYPE); |
| pj_cstr(&msg_data.msg_body, BODY); |
| status = pjsua_call_send_request(call->index, &SIP_INFO, |
| &msg_data); |
| if (status != PJ_SUCCESS) { |
| pj_perror(3, THIS_FILE, status, |
| "Failed requesting keyframe via SIP INFO"); |
| } else { |
| call_med->last_req_keyframe = now; |
| } |
| } |
| } |
| break; |
| |
| default: |
| break; |
| } |
| |
| if (pjsua_var.ua_cfg.cb.on_call_media_event && call) { |
| (*pjsua_var.ua_cfg.cb.on_call_media_event)(call->index, |
| call_med->idx, event); |
| } |
| |
| return status; |
| } |
| |
| /* Set media transport state and notify the application via the callback. */ |
| void pjsua_set_media_tp_state(pjsua_call_media *call_med, |
| pjsua_med_tp_st tp_st) |
| { |
| if (pjsua_var.ua_cfg.cb.on_call_media_transport_state && |
| call_med->tp_st != tp_st) |
| { |
| pjsua_med_tp_state_info info; |
| |
| pj_bzero(&info, sizeof(info)); |
| info.med_idx = call_med->idx; |
| info.state = tp_st; |
| info.status = call_med->tp_ready; |
| (*pjsua_var.ua_cfg.cb.on_call_media_transport_state)( |
| call_med->call->index, &info); |
| } |
| |
| call_med->tp_st = tp_st; |
| } |
| |
| /* Callback to resume pjsua_call_media_init() after media transport |
| * creation is completed. |
| */ |
| static pj_status_t call_media_init_cb(pjsua_call_media *call_med, |
| pj_status_t status, |
| int security_level, |
| int *sip_err_code) |
| { |
| pjsua_acc *acc = &pjsua_var.acc[call_med->call->acc_id]; |
| pjmedia_transport_info tpinfo; |
| int err_code = 0; |
| |
| if (status != PJ_SUCCESS) |
| goto on_return; |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING, |
| pjsua_var.media_cfg.tx_drop_pct); |
| |
| pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING, |
| pjsua_var.media_cfg.rx_drop_pct); |
| |
| if (call_med->tp_st == PJSUA_MED_TP_CREATING) |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE); |
| |
| if (!call_med->tp_orig && |
| pjsua_var.ua_cfg.cb.on_create_media_transport) |
| { |
| call_med->use_custom_med_tp = PJ_TRUE; |
| } else |
| call_med->use_custom_med_tp = PJ_FALSE; |
| |
| #if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0) |
| /* This function may be called when SRTP transport already exists |
| * (e.g: in re-invite, update), don't need to destroy/re-create. |
| */ |
| if (!call_med->tp_orig) { |
| pjmedia_srtp_setting srtp_opt; |
| pjmedia_transport *srtp = NULL; |
| |
| /* Check if SRTP requires secure signaling */ |
| if (acc->cfg.use_srtp != PJMEDIA_SRTP_DISABLED) { |
| if (security_level < acc->cfg.srtp_secure_signaling) { |
| err_code = PJSIP_SC_NOT_ACCEPTABLE; |
| status = PJSIP_ESESSIONINSECURE; |
| goto on_return; |
| } |
| } |
| |
| /* Always create SRTP adapter */ |
| pjmedia_srtp_setting_default(&srtp_opt); |
| srtp_opt.close_member_tp = PJ_TRUE; |
| |
| /* If media session has been ever established, let's use remote's |
| * preference in SRTP usage policy, especially when it is stricter. |
| */ |
| if (call_med->rem_srtp_use > acc->cfg.use_srtp) |
| srtp_opt.use = call_med->rem_srtp_use; |
| else |
| srtp_opt.use = acc->cfg.use_srtp; |
| |
| status = pjmedia_transport_srtp_create(pjsua_var.med_endpt, |
| call_med->tp, |
| &srtp_opt, &srtp); |
| if (status != PJ_SUCCESS) { |
| err_code = PJSIP_SC_INTERNAL_SERVER_ERROR; |
| goto on_return; |
| } |
| |
| /* Set SRTP as current media transport */ |
| call_med->tp_orig = call_med->tp; |
| call_med->tp = srtp; |
| } |
| #else |
| call_med->tp_orig = call_med->tp; |
| PJ_UNUSED_ARG(security_level); |
| #endif |
| |
| |
| pjmedia_transport_info_init(&tpinfo); |
| pjmedia_transport_get_info(call_med->tp, &tpinfo); |
| |
| pj_sockaddr_cp(&call_med->rtp_addr, &tpinfo.sock_info.rtp_addr_name); |
| |
| |
| on_return: |
| if (status != PJ_SUCCESS && call_med->tp) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL); |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = NULL; |
| } |
| |
| if (sip_err_code) |
| *sip_err_code = err_code; |
| |
| if (call_med->med_init_cb) { |
| pjsua_med_tp_state_info info; |
| |
| pj_bzero(&info, sizeof(info)); |
| info.status = status; |
| info.state = call_med->tp_st; |
| info.med_idx = call_med->idx; |
| info.sip_err_code = err_code; |
| (*call_med->med_init_cb)(call_med->call->index, &info); |
| } |
| |
| return status; |
| } |
| |
| /* Initialize the media line */ |
| pj_status_t pjsua_call_media_init(pjsua_call_media *call_med, |
| pjmedia_type type, |
| const pjsua_transport_config *tcfg, |
| int security_level, |
| int *sip_err_code, |
| pj_bool_t async, |
| pjsua_med_tp_state_cb cb) |
| { |
| pj_status_t status = PJ_SUCCESS; |
| |
| /* |
| * Note: this function may be called when the media already exists |
| * (e.g. in reinvites, updates, etc.) |
| */ |
| call_med->type = type; |
| |
| /* Create the media transport for initial call. Here are the possible |
| * media transport state and the action needed: |
| * - PJSUA_MED_TP_NULL or call_med->tp==NULL, create one. |
| * - PJSUA_MED_TP_RUNNING, do nothing. |
| * - PJSUA_MED_TP_DISABLED, re-init (media_create(), etc). Currently, |
| * this won't happen as media_channel_update() will always clean up |
| * the unused transport of a disabled media. |
| */ |
| if (call_med->tp == NULL) { |
| #if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0) |
| /* While in initial call, set default video devices */ |
| if (type == PJMEDIA_TYPE_VIDEO) { |
| status = pjsua_vid_channel_init(call_med); |
| if (status != PJ_SUCCESS) |
| return status; |
| } |
| #endif |
| |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_CREATING); |
| |
| if (pjsua_var.acc[call_med->call->acc_id].cfg.ice_cfg.enable_ice) { |
| status = create_ice_media_transport(tcfg, call_med, async); |
| if (async && status == PJ_EPENDING) { |
| /* We will resume call media initialization in the |
| * on_ice_complete() callback. |
| */ |
| call_med->med_create_cb = &call_media_init_cb; |
| call_med->med_init_cb = cb; |
| |
| return PJ_EPENDING; |
| } |
| } else { |
| status = create_udp_media_transport(tcfg, call_med); |
| } |
| |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, "Error creating media transport")); |
| return status; |
| } |
| |
| /* Media transport creation completed immediately, so |
| * we don't need to call the callback. |
| */ |
| call_med->med_init_cb = NULL; |
| |
| } else if (call_med->tp_st == PJSUA_MED_TP_DISABLED) { |
| /* Media is being reenabled. */ |
| //pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE); |
| |
| pj_assert(!"Currently no media transport reuse"); |
| } |
| |
| return call_media_init_cb(call_med, status, security_level, |
| sip_err_code); |
| } |
| |
| /* Callback to resume pjsua_media_channel_init() after media transport |
| * initialization is completed. |
| */ |
| static pj_status_t media_channel_init_cb(pjsua_call_id call_id, |
| const pjsua_med_tp_state_info *info) |
| { |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| pj_status_t status = (info? info->status : PJ_SUCCESS); |
| unsigned mi; |
| |
| if (info) { |
| pj_mutex_lock(call->med_ch_mutex); |
| |
| /* Set the callback to NULL to indicate that the async operation |
| * has completed. |
| */ |
| call->media_prov[info->med_idx].med_init_cb = NULL; |
| |
| /* In case of failure, save the information to be returned |
| * by the last media transport to finish. |
| */ |
| if (info->status != PJ_SUCCESS) |
| pj_memcpy(&call->med_ch_info, info, sizeof(info)); |
| |
| /* Check whether all the call's medias have finished calling their |
| * callbacks. |
| */ |
| for (mi=0; mi < call->med_prov_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media_prov[mi]; |
| |
| if (call_med->med_init_cb) { |
| pj_mutex_unlock(call->med_ch_mutex); |
| return PJ_SUCCESS; |
| } |
| |
| if (call_med->tp_ready != PJ_SUCCESS) |
| status = call_med->tp_ready; |
| } |
| |
| /* OK, we are called by the last media transport finished. */ |
| pj_mutex_unlock(call->med_ch_mutex); |
| } |
| |
| if (call->med_ch_mutex) { |
| pj_mutex_destroy(call->med_ch_mutex); |
| call->med_ch_mutex = NULL; |
| } |
| |
| if (status != PJ_SUCCESS) { |
| if (call->med_ch_info.status == PJ_SUCCESS) { |
| call->med_ch_info.status = status; |
| call->med_ch_info.sip_err_code = PJSIP_SC_TEMPORARILY_UNAVAILABLE; |
| } |
| pjsua_media_prov_clean_up(call_id); |
| goto on_return; |
| } |
| |
| /* Tell the media transport of a new offer/answer session */ |
| for (mi=0; mi < call->med_prov_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media_prov[mi]; |
| |
| /* Note: tp may be NULL if this media line is disabled */ |
| if (call_med->tp && call_med->tp_st == PJSUA_MED_TP_IDLE) { |
| pj_pool_t *tmp_pool = call->async_call.pool_prov; |
| |
| if (!tmp_pool) { |
| tmp_pool = (call->inv? call->inv->pool_prov: |
| call->async_call.dlg->pool); |
| } |
| |
| if (call_med->use_custom_med_tp) { |
| unsigned custom_med_tp_flags = PJSUA_MED_TP_CLOSE_MEMBER; |
| |
| /* Use custom media transport returned by the application */ |
| call_med->tp = |
| (*pjsua_var.ua_cfg.cb.on_create_media_transport) |
| (call_id, mi, call_med->tp, |
| custom_med_tp_flags); |
| if (!call_med->tp) { |
| status = |
| PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_TEMPORARILY_UNAVAILABLE); |
| } |
| } |
| |
| if (call_med->tp) { |
| status = pjmedia_transport_media_create( |
| call_med->tp, tmp_pool, |
| 0, call->async_call.rem_sdp, mi); |
| } |
| if (status != PJ_SUCCESS) { |
| call->med_ch_info.status = status; |
| call->med_ch_info.med_idx = mi; |
| call->med_ch_info.state = call_med->tp_st; |
| call->med_ch_info.sip_err_code = PJSIP_SC_TEMPORARILY_UNAVAILABLE; |
| pjsua_media_prov_clean_up(call_id); |
| goto on_return; |
| } |
| |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_INIT); |
| } |
| } |
| |
| call->med_ch_info.status = PJ_SUCCESS; |
| |
| on_return: |
| if (call->med_ch_cb) |
| (*call->med_ch_cb)(call->index, &call->med_ch_info); |
| |
| return status; |
| } |
| |
| |
| /* Clean up media transports in provisional media that is not used |
| * by call media. |
| */ |
| static void media_prov_clean_up(pjsua_call_id call_id, int idx) |
| { |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| unsigned i; |
| |
| for (i = idx; i < call->med_prov_cnt; ++i) { |
| pjsua_call_media *call_med = &call->media_prov[i]; |
| unsigned j; |
| pj_bool_t used = PJ_FALSE; |
| |
| if (call_med->tp == NULL) |
| continue; |
| |
| for (j = 0; j < call->med_cnt; ++j) { |
| if (call->media[j].tp == call_med->tp) { |
| used = PJ_TRUE; |
| break; |
| } |
| } |
| |
| if (!used) { |
| if (call_med->tp_st > PJSUA_MED_TP_IDLE) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE); |
| pjmedia_transport_media_stop(call_med->tp); |
| } |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL); |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = call_med->tp_orig = NULL; |
| } |
| } |
| } |
| |
| void pjsua_media_prov_clean_up(pjsua_call_id call_id) |
| { |
| media_prov_clean_up(call_id, 0); |
| } |
| |
| |
| pj_status_t pjsua_media_channel_init(pjsua_call_id call_id, |
| pjsip_role_e role, |
| int security_level, |
| pj_pool_t *tmp_pool, |
| const pjmedia_sdp_session *rem_sdp, |
| int *sip_err_code, |
| pj_bool_t async, |
| pjsua_med_tp_state_cb cb) |
| { |
| const pj_str_t STR_AUDIO = { "audio", 5 }; |
| const pj_str_t STR_VIDEO = { "video", 5 }; |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| pjsua_acc *acc = &pjsua_var.acc[call->acc_id]; |
| pj_uint8_t maudidx[PJSUA_MAX_CALL_MEDIA]; |
| unsigned maudcnt = PJ_ARRAY_SIZE(maudidx); |
| unsigned mtotaudcnt = PJ_ARRAY_SIZE(maudidx); |
| pj_uint8_t mvididx[PJSUA_MAX_CALL_MEDIA]; |
| unsigned mvidcnt = PJ_ARRAY_SIZE(mvididx); |
| unsigned mtotvidcnt = PJ_ARRAY_SIZE(mvididx); |
| unsigned mi; |
| pj_bool_t pending_med_tp = PJ_FALSE; |
| pj_bool_t reinit = PJ_FALSE; |
| pj_status_t status; |
| |
| PJ_UNUSED_ARG(role); |
| |
| /* |
| * Note: this function may be called when the media already exists |
| * (e.g. in reinvites, updates, etc). |
| */ |
| |
| if (pjsua_get_state() != PJSUA_STATE_RUNNING) { |
| if (sip_err_code) *sip_err_code = PJSIP_SC_SERVICE_UNAVAILABLE; |
| return PJ_EBUSY; |
| } |
| |
| if (async) { |
| pj_pool_t *tmppool = (call->inv? call->inv->pool_prov: |
| call->async_call.dlg->pool); |
| |
| status = pj_mutex_create_simple(tmppool, NULL, &call->med_ch_mutex); |
| if (status != PJ_SUCCESS) |
| return status; |
| } |
| |
| if (call->inv && call->inv->state == PJSIP_INV_STATE_CONFIRMED) |
| reinit = PJ_TRUE; |
| |
| PJ_LOG(4,(THIS_FILE, "Call %d: %sinitializing media..", |
| call_id, (reinit?"re-":"") )); |
| |
| pj_log_push_indent(); |
| |
| /* Init provisional media state */ |
| if (call->med_cnt == 0) { |
| /* New media session, just copy whole from call media state. */ |
| pj_memcpy(call->media_prov, call->media, sizeof(call->media)); |
| } else { |
| /* Clean up any unused transports. Note that when local SDP reoffer |
| * is rejected by remote, there may be any initialized transports that |
| * are not used by call media and currently there is no notification |
| * from PJSIP level regarding the reoffer rejection. |
| */ |
| pjsua_media_prov_clean_up(call_id); |
| |
| /* Updating media session, copy from call media state. */ |
| pj_memcpy(call->media_prov, call->media, |
| sizeof(call->media[0]) * call->med_cnt); |
| } |
| call->med_prov_cnt = call->med_cnt; |
| |
| #if DISABLED_FOR_TICKET_1185 |
| /* Return error if media transport has not been created yet |
| * (e.g. application is starting) |
| */ |
| for (i=0; i<call->med_cnt; ++i) { |
| if (call->media[i].tp == NULL) { |
| status = PJ_EBUSY; |
| goto on_error; |
| } |
| } |
| #endif |
| |
| /* Get media count for each media type */ |
| if (rem_sdp) { |
| sort_media(rem_sdp, &STR_AUDIO, acc->cfg.use_srtp, |
| maudidx, &maudcnt, &mtotaudcnt); |
| if (maudcnt==0) { |
| /* Expecting audio in the offer */ |
| if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE_HERE; |
| status = PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_NOT_ACCEPTABLE_HERE); |
| goto on_error; |
| } |
| |
| #if PJMEDIA_HAS_VIDEO |
| sort_media(rem_sdp, &STR_VIDEO, acc->cfg.use_srtp, |
| mvididx, &mvidcnt, &mtotvidcnt); |
| #else |
| mvidcnt = mtotvidcnt = 0; |
| PJ_UNUSED_ARG(STR_VIDEO); |
| #endif |
| |
| /* Update media count only when remote add any media, this media count |
| * must never decrease. Also note that we shouldn't apply the media |
| * count setting (of the call setting) before the SDP negotiation. |
| */ |
| if (call->med_prov_cnt < rem_sdp->media_count) |
| call->med_prov_cnt = PJ_MIN(rem_sdp->media_count, |
| PJSUA_MAX_CALL_MEDIA); |
| |
| call->rem_offerer = PJ_TRUE; |
| call->rem_aud_cnt = maudcnt; |
| call->rem_vid_cnt = mvidcnt; |
| |
| } else { |
| |
| /* If call already established, calculate media count from current |
| * local active SDP and call setting. Otherwise, calculate media |
| * count from the call setting only. |
| */ |
| if (reinit) { |
| const pjmedia_sdp_session *sdp; |
| |
| status = pjmedia_sdp_neg_get_active_local(call->inv->neg, &sdp); |
| pj_assert(status == PJ_SUCCESS); |
| |
| sort_media(sdp, &STR_AUDIO, acc->cfg.use_srtp, |
| maudidx, &maudcnt, &mtotaudcnt); |
| pj_assert(maudcnt > 0); |
| |
| sort_media(sdp, &STR_VIDEO, acc->cfg.use_srtp, |
| mvididx, &mvidcnt, &mtotvidcnt); |
| |
| /* Call setting may add or remove media. Adding media is done by |
| * enabling any disabled/port-zeroed media first, then adding new |
| * media whenever needed. Removing media is done by disabling |
| * media with the lowest 'quality'. |
| */ |
| |
| /* Check if we need to add new audio */ |
| if (maudcnt < call->opt.aud_cnt && |
| mtotaudcnt < call->opt.aud_cnt) |
| { |
| for (mi = 0; mi < call->opt.aud_cnt - mtotaudcnt; ++mi) |
| maudidx[maudcnt++] = (pj_uint8_t)call->med_prov_cnt++; |
| |
| mtotaudcnt = call->opt.aud_cnt; |
| } |
| maudcnt = call->opt.aud_cnt; |
| |
| /* Check if we need to add new video */ |
| if (mvidcnt < call->opt.vid_cnt && |
| mtotvidcnt < call->opt.vid_cnt) |
| { |
| for (mi = 0; mi < call->opt.vid_cnt - mtotvidcnt; ++mi) |
| mvididx[mvidcnt++] = (pj_uint8_t)call->med_prov_cnt++; |
| |
| mtotvidcnt = call->opt.vid_cnt; |
| } |
| mvidcnt = call->opt.vid_cnt; |
| |
| } else { |
| |
| maudcnt = mtotaudcnt = call->opt.aud_cnt; |
| for (mi=0; mi<maudcnt; ++mi) { |
| maudidx[mi] = (pj_uint8_t)mi; |
| } |
| mvidcnt = mtotvidcnt = call->opt.vid_cnt; |
| for (mi=0; mi<mvidcnt; ++mi) { |
| mvididx[mi] = (pj_uint8_t)(maudcnt + mi); |
| } |
| call->med_prov_cnt = maudcnt + mvidcnt; |
| |
| /* Need to publish supported media? */ |
| if (call->opt.flag & PJSUA_CALL_INCLUDE_DISABLED_MEDIA) { |
| if (mtotaudcnt == 0) { |
| mtotaudcnt = 1; |
| maudidx[0] = (pj_uint8_t)call->med_prov_cnt++; |
| } |
| #if PJMEDIA_HAS_VIDEO |
| if (mtotvidcnt == 0) { |
| mtotvidcnt = 1; |
| mvididx[0] = (pj_uint8_t)call->med_prov_cnt++; |
| } |
| #endif |
| } |
| } |
| |
| call->rem_offerer = PJ_FALSE; |
| } |
| |
| if (call->med_prov_cnt == 0) { |
| /* Expecting at least one media */ |
| if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE_HERE; |
| status = PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_NOT_ACCEPTABLE_HERE); |
| goto on_error; |
| } |
| |
| if (async) { |
| call->med_ch_cb = cb; |
| } |
| |
| if (rem_sdp) { |
| call->async_call.rem_sdp = |
| pjmedia_sdp_session_clone(call->inv->pool_prov, rem_sdp); |
| } else { |
| call->async_call.rem_sdp = NULL; |
| } |
| |
| call->async_call.pool_prov = tmp_pool; |
| |
| /* Initialize each media line */ |
| for (mi=0; mi < call->med_prov_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media_prov[mi]; |
| pj_bool_t enabled = PJ_FALSE; |
| pjmedia_type media_type = PJMEDIA_TYPE_UNKNOWN; |
| |
| if (pj_memchr(maudidx, mi, mtotaudcnt * sizeof(maudidx[0]))) { |
| media_type = PJMEDIA_TYPE_AUDIO; |
| if (call->opt.aud_cnt && |
| pj_memchr(maudidx, mi, maudcnt * sizeof(maudidx[0]))) |
| { |
| enabled = PJ_TRUE; |
| } |
| } else if (pj_memchr(mvididx, mi, mtotvidcnt * sizeof(mvididx[0]))) { |
| media_type = PJMEDIA_TYPE_VIDEO; |
| if (call->opt.vid_cnt && |
| pj_memchr(mvididx, mi, mvidcnt * sizeof(mvididx[0]))) |
| { |
| enabled = PJ_TRUE; |
| } |
| } |
| |
| if (enabled) { |
| status = pjsua_call_media_init(call_med, media_type, |
| &acc->cfg.rtp_cfg, |
| security_level, sip_err_code, |
| async, |
| (async? &media_channel_init_cb: |
| NULL)); |
| if (status == PJ_EPENDING) { |
| pending_med_tp = PJ_TRUE; |
| } else if (status != PJ_SUCCESS) { |
| if (pending_med_tp) { |
| /* Save failure information. */ |
| call_med->tp_ready = status; |
| pj_bzero(&call->med_ch_info, sizeof(call->med_ch_info)); |
| call->med_ch_info.status = status; |
| call->med_ch_info.state = call_med->tp_st; |
| call->med_ch_info.med_idx = call_med->idx; |
| if (sip_err_code) |
| call->med_ch_info.sip_err_code = *sip_err_code; |
| |
| /* We will return failure in the callback later. */ |
| return PJ_EPENDING; |
| } |
| |
| pjsua_media_prov_clean_up(call_id); |
| goto on_error; |
| } |
| } else { |
| /* By convention, the media is disabled if transport is NULL |
| * or transport state is PJSUA_MED_TP_DISABLED. |
| */ |
| if (call_med->tp) { |
| // Don't close transport here, as SDP negotiation has not been |
| // done and stream may be still active. Once SDP negotiation |
| // is done (channel_update() invoked), this transport will be |
| // closed there. |
| //pjmedia_transport_close(call_med->tp); |
| //call_med->tp = NULL; |
| pj_assert(call_med->tp_st == PJSUA_MED_TP_INIT || |
| call_med->tp_st == PJSUA_MED_TP_RUNNING); |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_DISABLED); |
| } |
| |
| /* Put media type just for info */ |
| call_med->type = media_type; |
| } |
| } |
| |
| call->audio_idx = maudidx[0]; |
| |
| PJ_LOG(4,(THIS_FILE, "Media index %d selected for audio call %d", |
| call->audio_idx, call->index)); |
| |
| if (pending_med_tp) { |
| /* We shouldn't use temporary pool anymore. */ |
| call->async_call.pool_prov = NULL; |
| /* We have a pending media transport initialization. */ |
| pj_log_pop_indent(); |
| return PJ_EPENDING; |
| } |
| |
| /* Media transport initialization completed immediately, so |
| * we don't need to call the callback. |
| */ |
| call->med_ch_cb = NULL; |
| |
| status = media_channel_init_cb(call_id, NULL); |
| if (status != PJ_SUCCESS && sip_err_code) |
| *sip_err_code = call->med_ch_info.sip_err_code; |
| |
| pj_log_pop_indent(); |
| return status; |
| |
| on_error: |
| if (call->med_ch_mutex) { |
| pj_mutex_destroy(call->med_ch_mutex); |
| call->med_ch_mutex = NULL; |
| } |
| |
| pj_log_pop_indent(); |
| return status; |
| } |
| |
| |
| /* Create SDP based on the current media channel. Note that, this function |
| * will not modify the media channel, so when receiving new offer or |
| * updating media count (via call setting), media channel must be reinit'd |
| * (using pjsua_media_channel_init()) first before calling this function. |
| */ |
| pj_status_t pjsua_media_channel_create_sdp(pjsua_call_id call_id, |
| pj_pool_t *pool, |
| const pjmedia_sdp_session *rem_sdp, |
| pjmedia_sdp_session **p_sdp, |
| int *sip_err_code) |
| { |
| enum { MAX_MEDIA = PJSUA_MAX_CALL_MEDIA }; |
| pjmedia_sdp_session *sdp; |
| pj_sockaddr origin; |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| pjmedia_sdp_neg_state sdp_neg_state = PJMEDIA_SDP_NEG_STATE_NULL; |
| unsigned mi; |
| unsigned tot_bandw_tias = 0; |
| pj_status_t status; |
| |
| if (pjsua_get_state() != PJSUA_STATE_RUNNING) |
| return PJ_EBUSY; |
| |
| #if 0 |
| // This function should not really change the media channel. |
| if (rem_sdp) { |
| /* If this is a re-offer, let's re-initialize media as remote may |
| * add or remove media |
| */ |
| if (call->inv && call->inv->state == PJSIP_INV_STATE_CONFIRMED) { |
| status = pjsua_media_channel_init(call_id, PJSIP_ROLE_UAS, |
| call->secure_level, pool, |
| rem_sdp, sip_err_code, |
| PJ_FALSE, NULL); |
| if (status != PJ_SUCCESS) |
| return status; |
| } |
| } else { |
| /* Audio is first in our offer, by convention */ |
| // The audio_idx should not be changed here, as this function may be |
| // called in generating re-offer and the current active audio index |
| // can be anywhere. |
| //call->audio_idx = 0; |
| } |
| #endif |
| |
| #if 0 |
| // Since r3512, old-style hold should have got transport, created by |
| // pjsua_media_channel_init() in initial offer/answer or remote reoffer. |
| /* Create media if it's not created. This could happen when call is |
| * currently on-hold (with the old style hold) |
| */ |
| if (call->media[call->audio_idx].tp == NULL) { |
| pjsip_role_e role; |
| role = (rem_sdp ? PJSIP_ROLE_UAS : PJSIP_ROLE_UAC); |
| status = pjsua_media_channel_init(call_id, role, call->secure_level, |
| pool, rem_sdp, sip_err_code); |
| if (status != PJ_SUCCESS) |
| return status; |
| } |
| #endif |
| |
| /* Get SDP negotiator state */ |
| if (call->inv && call->inv->neg) |
| sdp_neg_state = pjmedia_sdp_neg_get_state(call->inv->neg); |
| |
| /* Get one address to use in the origin field */ |
| pj_bzero(&origin, sizeof(origin)); |
| for (mi=0; mi<call->med_prov_cnt; ++mi) { |
| pjmedia_transport_info tpinfo; |
| |
| if (call->media_prov[mi].tp == NULL) |
| continue; |
| |
| pjmedia_transport_info_init(&tpinfo); |
| pjmedia_transport_get_info(call->media_prov[mi].tp, &tpinfo); |
| pj_sockaddr_cp(&origin, &tpinfo.sock_info.rtp_addr_name); |
| break; |
| } |
| |
| /* Create the base (blank) SDP */ |
| status = pjmedia_endpt_create_base_sdp(pjsua_var.med_endpt, pool, NULL, |
| &origin, &sdp); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| /* Process each media line */ |
| for (mi=0; mi<call->med_prov_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media_prov[mi]; |
| pjmedia_sdp_media *m = NULL; |
| pjmedia_transport_info tpinfo; |
| unsigned i; |
| |
| if (rem_sdp && mi >= rem_sdp->media_count) { |
| /* Remote might have removed some media lines. */ |
| media_prov_clean_up(call->index, rem_sdp->media_count); |
| call->med_prov_cnt = rem_sdp->media_count; |
| break; |
| } |
| |
| if (call_med->tp == NULL || call_med->tp_st == PJSUA_MED_TP_DISABLED) |
| { |
| /* |
| * This media is disabled. Just create a valid SDP with zero |
| * port. |
| */ |
| if (rem_sdp) { |
| /* Just clone the remote media and deactivate it */ |
| m = pjmedia_sdp_media_clone_deactivate(pool, |
| rem_sdp->media[mi]); |
| } else { |
| m = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_media); |
| m->desc.transport = pj_str("RTP/AVP"); |
| m->desc.fmt_count = 1; |
| |
| switch (call_med->type) { |
| case PJMEDIA_TYPE_AUDIO: |
| m->desc.media = pj_str("audio"); |
| m->desc.fmt[0] = pj_str("0"); |
| break; |
| case PJMEDIA_TYPE_VIDEO: |
| m->desc.media = pj_str("video"); |
| m->desc.fmt[0] = pj_str("31"); |
| break; |
| default: |
| /* This must be us generating re-offer, and some unknown |
| * media may exist, so just clone from active local SDP |
| * (and it should have been deactivated already). |
| */ |
| pj_assert(call->inv && call->inv->neg && |
| sdp_neg_state == PJMEDIA_SDP_NEG_STATE_DONE); |
| { |
| const pjmedia_sdp_session *s_; |
| pjmedia_sdp_neg_get_active_local(call->inv->neg, &s_); |
| |
| pj_assert(mi < s_->media_count); |
| m = pjmedia_sdp_media_clone(pool, s_->media[mi]); |
| m->desc.port = 0; |
| } |
| break; |
| } |
| } |
| |
| /* Add connection line, if none */ |
| if (m->conn == NULL && sdp->conn == NULL) { |
| pj_bool_t use_ipv6; |
| |
| use_ipv6 = (pjsua_var.acc[call->acc_id].cfg.ipv6_media_use != |
| PJSUA_IPV6_DISABLED); |
| |
| m->conn = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_conn); |
| m->conn->net_type = pj_str("IN"); |
| if (use_ipv6) { |
| m->conn->addr_type = pj_str("IP6"); |
| m->conn->addr = pj_str("::1"); |
| } else { |
| m->conn->addr_type = pj_str("IP4"); |
| m->conn->addr = pj_str("127.0.0.1"); |
| } |
| } |
| |
| sdp->media[sdp->media_count++] = m; |
| continue; |
| } |
| |
| /* Get transport address info */ |
| pjmedia_transport_info_init(&tpinfo); |
| pjmedia_transport_get_info(call_med->tp, &tpinfo); |
| |
| /* Ask pjmedia endpoint to create SDP media line */ |
| switch (call_med->type) { |
| case PJMEDIA_TYPE_AUDIO: |
| status = pjmedia_endpt_create_audio_sdp(pjsua_var.med_endpt, pool, |
| &tpinfo.sock_info, 0, &m); |
| break; |
| #if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0) |
| case PJMEDIA_TYPE_VIDEO: |
| status = pjmedia_endpt_create_video_sdp(pjsua_var.med_endpt, pool, |
| &tpinfo.sock_info, 0, &m); |
| break; |
| #endif |
| default: |
| pj_assert(!"Invalid call_med media type"); |
| return PJ_EBUG; |
| } |
| |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| sdp->media[sdp->media_count++] = m; |
| |
| /* Give to transport */ |
| status = pjmedia_transport_encode_sdp(call_med->tp, pool, |
| sdp, rem_sdp, mi); |
| if (status != PJ_SUCCESS) { |
| if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE; |
| return status; |
| } |
| |
| #if PJSUA_SDP_SESS_HAS_CONN |
| /* Copy c= line of the first media to session level, |
| * if there's none. |
| */ |
| if (sdp->conn == NULL) { |
| sdp->conn = pjmedia_sdp_conn_clone(pool, m->conn); |
| } |
| #endif |
| |
| |
| /* Find media bandwidth info */ |
| for (i = 0; i < m->bandw_count; ++i) { |
| const pj_str_t STR_BANDW_MODIFIER_TIAS = { "TIAS", 4 }; |
| if (!pj_stricmp(&m->bandw[i]->modifier, &STR_BANDW_MODIFIER_TIAS)) |
| { |
| tot_bandw_tias += m->bandw[i]->value; |
| break; |
| } |
| } |
| } |
| |
| /* Add NAT info in the SDP */ |
| if (pjsua_var.ua_cfg.nat_type_in_sdp) { |
| pjmedia_sdp_attr *a; |
| pj_str_t value; |
| char nat_info[80]; |
| |
| value.ptr = nat_info; |
| if (pjsua_var.ua_cfg.nat_type_in_sdp == 1) { |
| value.slen = pj_ansi_snprintf(nat_info, sizeof(nat_info), |
| "%d", pjsua_var.nat_type); |
| } else { |
| const char *type_name = pj_stun_get_nat_name(pjsua_var.nat_type); |
| value.slen = pj_ansi_snprintf(nat_info, sizeof(nat_info), |
| "%d %s", |
| pjsua_var.nat_type, |
| type_name); |
| } |
| |
| a = pjmedia_sdp_attr_create(pool, "X-nat", &value); |
| |
| pjmedia_sdp_attr_add(&sdp->attr_count, sdp->attr, a); |
| |
| } |
| |
| |
| /* Add bandwidth info in session level using bandwidth modifier "AS". */ |
| if (tot_bandw_tias) { |
| unsigned bandw; |
| const pj_str_t STR_BANDW_MODIFIER_AS = { "AS", 2 }; |
| pjmedia_sdp_bandw *b; |
| |
| /* AS bandwidth = RTP bitrate + RTCP bitrate. |
| * RTP bitrate = payload bitrate (total TIAS) + overheads (~16kbps). |
| * RTCP bitrate = est. 5% of RTP bitrate. |
| * Note that AS bandwidth is in kbps. |
| */ |
| bandw = tot_bandw_tias + 16000; |
| bandw += bandw * 5 / 100; |
| b = PJ_POOL_ALLOC_T(pool, pjmedia_sdp_bandw); |
| b->modifier = STR_BANDW_MODIFIER_AS; |
| b->value = bandw / 1000; |
| sdp->bandw[sdp->bandw_count++] = b; |
| } |
| |
| |
| #if DISABLED_FOR_TICKET_1185 && defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0) |
| /* Check if SRTP is in optional mode and configured to use duplicated |
| * media, i.e: secured and unsecured version, in the SDP offer. |
| */ |
| if (!rem_sdp && |
| pjsua_var.acc[call->acc_id].cfg.use_srtp == PJMEDIA_SRTP_OPTIONAL && |
| pjsua_var.acc[call->acc_id].cfg.srtp_optional_dup_offer) |
| { |
| unsigned i; |
| |
| for (i = 0; i < sdp->media_count; ++i) { |
| pjmedia_sdp_media *m = sdp->media[i]; |
| |
| /* Check if this media is unsecured but has SDP "crypto" |
| * attribute. |
| */ |
| if (pj_stricmp2(&m->desc.transport, "RTP/AVP") == 0 && |
| pjmedia_sdp_media_find_attr2(m, "crypto", NULL) != NULL) |
| { |
| if (i == (unsigned)call->audio_idx && |
| sdp_neg_state == PJMEDIA_SDP_NEG_STATE_DONE) |
| { |
| /* This is a session update, and peer has chosen the |
| * unsecured version, so let's make this unsecured too. |
| */ |
| pjmedia_sdp_media_remove_all_attr(m, "crypto"); |
| } else { |
| /* This is new offer, duplicate media so we'll have |
| * secured (with "RTP/SAVP" transport) and and unsecured |
| * versions. |
| */ |
| pjmedia_sdp_media *new_m; |
| |
| /* Duplicate this media and apply secured transport */ |
| new_m = pjmedia_sdp_media_clone(pool, m); |
| pj_strdup2(pool, &new_m->desc.transport, "RTP/SAVP"); |
| |
| /* Remove the "crypto" attribute in the unsecured media */ |
| pjmedia_sdp_media_remove_all_attr(m, "crypto"); |
| |
| /* Insert the new media before the unsecured media */ |
| if (sdp->media_count < PJMEDIA_MAX_SDP_MEDIA) { |
| pj_array_insert(sdp->media, sizeof(new_m), |
| sdp->media_count, i, &new_m); |
| ++sdp->media_count; |
| ++i; |
| } |
| } |
| } |
| } |
| } |
| #endif |
| |
| call->rem_offerer = (rem_sdp != NULL); |
| |
| /* Notify application */ |
| if (pjsua_var.ua_cfg.cb.on_call_sdp_created) { |
| (*pjsua_var.ua_cfg.cb.on_call_sdp_created)(call_id, sdp, |
| pool, rem_sdp); |
| } |
| |
| *p_sdp = sdp; |
| return PJ_SUCCESS; |
| } |
| |
| |
| static void stop_media_stream(pjsua_call *call, unsigned med_idx) |
| { |
| pjsua_call_media *call_med = &call->media[med_idx]; |
| |
| /* Check if stream does not exist */ |
| if (med_idx >= call->med_cnt) |
| return; |
| |
| pj_log_push_indent(); |
| |
| if (call_med->type == PJMEDIA_TYPE_AUDIO) { |
| pjsua_aud_stop_stream(call_med); |
| } |
| |
| #if PJMEDIA_HAS_VIDEO |
| else if (call_med->type == PJMEDIA_TYPE_VIDEO) { |
| pjsua_vid_stop_stream(call_med); |
| } |
| #endif |
| |
| PJ_LOG(4,(THIS_FILE, "Media stream call%02d:%d is destroyed", |
| call->index, med_idx)); |
| call_med->prev_state = call_med->state; |
| call_med->state = PJSUA_CALL_MEDIA_NONE; |
| |
| /* Try to sync recent changes to provisional media */ |
| if (med_idx < call->med_prov_cnt && |
| call->media_prov[med_idx].tp == call_med->tp) |
| { |
| pjsua_call_media *prov_med = &call->media_prov[med_idx]; |
| |
| /* Media state */ |
| prov_med->prev_state = call_med->prev_state; |
| prov_med->state = call_med->state; |
| |
| /* RTP seq/ts */ |
| prov_med->rtp_tx_seq_ts_set = call_med->rtp_tx_seq_ts_set; |
| prov_med->rtp_tx_seq = call_med->rtp_tx_seq; |
| prov_med->rtp_tx_ts = call_med->rtp_tx_ts; |
| |
| /* Stream */ |
| if (call_med->type == PJMEDIA_TYPE_AUDIO) { |
| prov_med->strm.a.conf_slot = call_med->strm.a.conf_slot; |
| prov_med->strm.a.stream = call_med->strm.a.stream; |
| } |
| #if PJMEDIA_HAS_VIDEO |
| else if (call_med->type == PJMEDIA_TYPE_VIDEO) { |
| prov_med->strm.v.cap_win_id = call_med->strm.v.cap_win_id; |
| prov_med->strm.v.rdr_win_id = call_med->strm.v.rdr_win_id; |
| prov_med->strm.v.stream = call_med->strm.v.stream; |
| } |
| #endif |
| } |
| |
| pj_log_pop_indent(); |
| } |
| |
| static void stop_media_session(pjsua_call_id call_id) |
| { |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| unsigned mi; |
| |
| for (mi=0; mi<call->med_cnt; ++mi) { |
| stop_media_stream(call, mi); |
| } |
| } |
| |
| pj_status_t pjsua_media_channel_deinit(pjsua_call_id call_id) |
| { |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| unsigned mi; |
| |
| for (mi=0; mi<call->med_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media[mi]; |
| |
| if (call_med->tp_st == PJSUA_MED_TP_CREATING) { |
| /* We will do the deinitialization after media transport |
| * creation is completed. |
| */ |
| call->async_call.med_ch_deinit = PJ_TRUE; |
| return PJ_SUCCESS; |
| } |
| } |
| |
| PJ_LOG(4,(THIS_FILE, "Call %d: deinitializing media..", call_id)); |
| pj_log_push_indent(); |
| |
| stop_media_session(call_id); |
| |
| /* Clean up media transports */ |
| pjsua_media_prov_clean_up(call_id); |
| call->med_prov_cnt = 0; |
| for (mi=0; mi<call->med_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media[mi]; |
| |
| if (call_med->tp_st > PJSUA_MED_TP_IDLE) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE); |
| pjmedia_transport_media_stop(call_med->tp); |
| } |
| |
| if (call_med->tp) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL); |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = call_med->tp_orig = NULL; |
| } |
| call_med->tp_orig = NULL; |
| } |
| |
| pj_log_pop_indent(); |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* Match codec fmtp. This will compare the values and the order. */ |
| static pj_bool_t match_codec_fmtp(const pjmedia_codec_fmtp *fmtp1, |
| const pjmedia_codec_fmtp *fmtp2) |
| { |
| unsigned i; |
| |
| if (fmtp1->cnt != fmtp2->cnt) |
| return PJ_FALSE; |
| |
| for (i = 0; i < fmtp1->cnt; ++i) { |
| if (pj_stricmp(&fmtp1->param[i].name, &fmtp2->param[i].name)) |
| return PJ_FALSE; |
| if (pj_stricmp(&fmtp1->param[i].val, &fmtp2->param[i].val)) |
| return PJ_FALSE; |
| } |
| |
| return PJ_TRUE; |
| } |
| |
| #if PJSUA_MEDIA_HAS_PJMEDIA || PJSUA_THIRD_PARTY_STREAM_HAS_GET_INFO |
| |
| static pj_bool_t is_ice_running(pjmedia_transport *tp) |
| { |
| pjmedia_transport_info tpinfo; |
| pjmedia_ice_transport_info *ice_info; |
| |
| pjmedia_transport_info_init(&tpinfo); |
| pjmedia_transport_get_info(tp, &tpinfo); |
| ice_info = (pjmedia_ice_transport_info*) |
| pjmedia_transport_info_get_spc_info(&tpinfo, |
| PJMEDIA_TRANSPORT_TYPE_ICE); |
| return (ice_info && ice_info->sess_state == PJ_ICE_STRANS_STATE_RUNNING); |
| } |
| |
| |
| static pj_bool_t is_media_changed(const pjsua_call *call, |
| unsigned med_idx, |
| const pjsua_stream_info *new_si_) |
| { |
| const pjsua_call_media *call_med = &call->media[med_idx]; |
| |
| /* Check for newly added media */ |
| if (med_idx >= call->med_cnt) |
| return PJ_TRUE; |
| |
| /* Compare media type */ |
| if (call_med->type != new_si_->type) |
| return PJ_TRUE; |
| |
| /* Audio update checks */ |
| if (call_med->type == PJMEDIA_TYPE_AUDIO) { |
| pjmedia_stream_info the_old_si; |
| const pjmedia_stream_info *old_si = NULL; |
| const pjmedia_stream_info *new_si = &new_si_->info.aud; |
| const pjmedia_codec_info *old_ci = NULL; |
| const pjmedia_codec_info *new_ci = &new_si->fmt; |
| const pjmedia_codec_param *old_cp = NULL; |
| const pjmedia_codec_param *new_cp = new_si->param; |
| |
| /* Compare media direction */ |
| if (call_med->dir != new_si->dir) |
| return PJ_TRUE; |
| |
| /* Get current active stream info */ |
| if (call_med->strm.a.stream) { |
| pjmedia_stream_get_info(call_med->strm.a.stream, &the_old_si); |
| old_si = &the_old_si; |
| old_ci = &old_si->fmt; |
| old_cp = old_si->param; |
| } else { |
| /* The stream is inactive. */ |
| return (new_si->dir != PJMEDIA_DIR_NONE); |
| } |
| |
| /* Compare remote RTP address. If ICE is running, change in default |
| * address can happen after negotiation, this can be handled |
| * internally by ICE and does not need to cause media restart. |
| */ |
| if (!is_ice_running(call_med->tp) && |
| pj_sockaddr_cmp(&old_si->rem_addr, &new_si->rem_addr)) |
| { |
| return PJ_TRUE; |
| } |
| |
| /* Compare codec info */ |
| if (pj_stricmp(&old_ci->encoding_name, &new_ci->encoding_name) || |
| old_ci->clock_rate != new_ci->clock_rate || |
| old_ci->channel_cnt != new_ci->channel_cnt || |
| old_si->rx_pt != new_si->rx_pt || |
| old_si->tx_pt != new_si->tx_pt || |
| old_si->rx_event_pt != new_si->tx_event_pt || |
| old_si->tx_event_pt != new_si->tx_event_pt) |
| { |
| return PJ_TRUE; |
| } |
| |
| /* Compare codec param */ |
| if (old_cp->setting.frm_per_pkt != new_cp->setting.frm_per_pkt || |
| old_cp->setting.vad != new_cp->setting.vad || |
| old_cp->setting.cng != new_cp->setting.cng || |
| old_cp->setting.plc != new_cp->setting.plc || |
| old_cp->setting.penh != new_cp->setting.penh || |
| !match_codec_fmtp(&old_cp->setting.dec_fmtp, |
| &new_cp->setting.dec_fmtp) || |
| !match_codec_fmtp(&old_cp->setting.enc_fmtp, |
| &new_cp->setting.enc_fmtp)) |
| { |
| return PJ_TRUE; |
| } |
| } |
| |
| #if PJMEDIA_HAS_VIDEO |
| else if (call_med->type == PJMEDIA_TYPE_VIDEO) { |
| pjmedia_vid_stream_info the_old_si; |
| const pjmedia_vid_stream_info *old_si = NULL; |
| const pjmedia_vid_stream_info *new_si = &new_si_->info.vid; |
| const pjmedia_vid_codec_info *old_ci = NULL; |
| const pjmedia_vid_codec_info *new_ci = &new_si->codec_info; |
| const pjmedia_vid_codec_param *old_cp = NULL; |
| const pjmedia_vid_codec_param *new_cp = new_si->codec_param; |
| |
| /* Compare media direction */ |
| if (call_med->dir != new_si->dir) |
| return PJ_TRUE; |
| |
| /* Get current active stream info */ |
| if (call_med->strm.v.stream) { |
| pjmedia_vid_stream_get_info(call_med->strm.v.stream, &the_old_si); |
| old_si = &the_old_si; |
| old_ci = &old_si->codec_info; |
| old_cp = old_si->codec_param; |
| } else { |
| /* The stream is inactive. */ |
| return (new_si->dir != PJMEDIA_DIR_NONE); |
| } |
| |
| /* Compare remote RTP address. If ICE is running, change in default |
| * address can happen after negotiation, this can be handled |
| * internally by ICE and does not need to cause media restart. |
| */ |
| if (!is_ice_running(call_med->tp) && |
| pj_sockaddr_cmp(&old_si->rem_addr, &new_si->rem_addr)) |
| { |
| return PJ_TRUE; |
| } |
| |
| /* Compare codec info */ |
| if (pj_stricmp(&old_ci->encoding_name, &new_ci->encoding_name) || |
| old_si->rx_pt != new_si->rx_pt || |
| old_si->tx_pt != new_si->tx_pt) |
| { |
| return PJ_TRUE; |
| } |
| |
| /* Compare codec param */ |
| if (/* old_cp->enc_mtu != new_cp->enc_mtu || */ |
| pj_memcmp(&old_cp->enc_fmt.det, &new_cp->enc_fmt.det, |
| sizeof(pjmedia_video_format_detail)) || |
| !match_codec_fmtp(&old_cp->dec_fmtp, &new_cp->dec_fmtp) || |
| !match_codec_fmtp(&old_cp->enc_fmtp, &new_cp->enc_fmtp)) |
| { |
| return PJ_TRUE; |
| } |
| } |
| |
| #endif |
| |
| else { |
| /* Just return PJ_TRUE for other media type */ |
| return PJ_TRUE; |
| } |
| |
| return PJ_FALSE; |
| } |
| |
| #else /* PJSUA_MEDIA_HAS_PJMEDIA || PJSUA_THIRD_PARTY_STREAM_HAS_GET_INFO */ |
| |
| static pj_bool_t is_media_changed(const pjsua_call *call, |
| unsigned med_idx, |
| const pjsua_stream_info *new_si_) |
| { |
| PJ_UNUSED_ARG(call); |
| PJ_UNUSED_ARG(med_idx); |
| PJ_UNUSED_ARG(new_si_); |
| /* Always assume that media has been changed */ |
| return PJ_TRUE; |
| } |
| |
| #endif /* PJSUA_MEDIA_HAS_PJMEDIA || PJSUA_THIRD_PARTY_STREAM_HAS_GET_INFO */ |
| |
| |
| pj_status_t pjsua_media_channel_update(pjsua_call_id call_id, |
| const pjmedia_sdp_session *local_sdp, |
| const pjmedia_sdp_session *remote_sdp) |
| { |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| pjsua_acc *acc = &pjsua_var.acc[call->acc_id]; |
| pj_pool_t *tmp_pool = call->inv->pool_prov; |
| unsigned mi; |
| pj_bool_t got_media = PJ_FALSE; |
| pj_status_t status = PJ_SUCCESS; |
| |
| const pj_str_t STR_AUDIO = { "audio", 5 }; |
| const pj_str_t STR_VIDEO = { "video", 5 }; |
| pj_uint8_t maudidx[PJSUA_MAX_CALL_MEDIA]; |
| unsigned maudcnt = PJ_ARRAY_SIZE(maudidx); |
| unsigned mtotaudcnt = PJ_ARRAY_SIZE(maudidx); |
| pj_uint8_t mvididx[PJSUA_MAX_CALL_MEDIA]; |
| unsigned mvidcnt = PJ_ARRAY_SIZE(mvididx); |
| unsigned mtotvidcnt = PJ_ARRAY_SIZE(mvididx); |
| pj_bool_t need_renego_sdp = PJ_FALSE; |
| |
| if (pjsua_get_state() != PJSUA_STATE_RUNNING) |
| return PJ_EBUSY; |
| |
| PJ_LOG(4,(THIS_FILE, "Call %d: updating media..", call_id)); |
| pj_log_push_indent(); |
| |
| /* Destroy existing media session, if any. */ |
| //stop_media_session(call->index); |
| |
| /* Call media count must be at least equal to SDP media. Note that |
| * it may not be equal when remote removed any SDP media line. |
| */ |
| pj_assert(call->med_prov_cnt >= local_sdp->media_count); |
| |
| /* Reset audio_idx first */ |
| call->audio_idx = -1; |
| |
| /* Sort audio/video based on "quality" */ |
| sort_media(local_sdp, &STR_AUDIO, acc->cfg.use_srtp, |
| maudidx, &maudcnt, &mtotaudcnt); |
| #if PJMEDIA_HAS_VIDEO |
| sort_media(local_sdp, &STR_VIDEO, acc->cfg.use_srtp, |
| mvididx, &mvidcnt, &mtotvidcnt); |
| #else |
| PJ_UNUSED_ARG(STR_VIDEO); |
| mvidcnt = mtotvidcnt = 0; |
| #endif |
| |
| /* Applying media count limitation. Note that in generating SDP answer, |
| * no media count limitation applied, as we didn't know yet which media |
| * would pass the SDP negotiation. |
| */ |
| if (maudcnt > call->opt.aud_cnt || mvidcnt > call->opt.vid_cnt) |
| { |
| pjmedia_sdp_session *local_sdp2; |
| |
| maudcnt = PJ_MIN(maudcnt, call->opt.aud_cnt); |
| mvidcnt = PJ_MIN(mvidcnt, call->opt.vid_cnt); |
| local_sdp2 = pjmedia_sdp_session_clone(tmp_pool, local_sdp); |
| |
| for (mi=0; mi < local_sdp2->media_count; ++mi) { |
| pjmedia_sdp_media *m = local_sdp2->media[mi]; |
| |
| if (m->desc.port == 0 || |
| pj_memchr(maudidx, mi, maudcnt*sizeof(maudidx[0])) || |
| pj_memchr(mvididx, mi, mvidcnt*sizeof(mvididx[0]))) |
| { |
| continue; |
| } |
| |
| /* Deactivate this media */ |
| pjmedia_sdp_media_deactivate(tmp_pool, m); |
| } |
| |
| local_sdp = local_sdp2; |
| need_renego_sdp = PJ_TRUE; |
| } |
| |
| /* Process each media stream */ |
| for (mi=0; mi < call->med_prov_cnt; ++mi) { |
| pjsua_call_media *call_med = &call->media_prov[mi]; |
| pj_bool_t media_changed = PJ_FALSE; |
| |
| if (mi >= local_sdp->media_count || |
| mi >= remote_sdp->media_count) |
| { |
| /* This may happen when remote removed any SDP media lines in |
| * its re-offer. |
| */ |
| |
| /* Stop stream */ |
| stop_media_stream(call, mi); |
| |
| /* Close the media transport */ |
| if (call_med->tp) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL); |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = call_med->tp_orig = NULL; |
| } |
| continue; |
| #if 0 |
| /* Something is wrong */ |
| PJ_LOG(1,(THIS_FILE, "Error updating media for call %d: " |
| "invalid media index %d in SDP", call_id, mi)); |
| status = PJMEDIA_SDP_EINSDP; |
| goto on_error; |
| #endif |
| } |
| |
| /* Apply media update action */ |
| if (call_med->type==PJMEDIA_TYPE_AUDIO) { |
| pjmedia_stream_info the_si, *si = &the_si; |
| pjsua_stream_info stream_info; |
| |
| status = pjmedia_stream_info_from_sdp( |
| si, tmp_pool, pjsua_var.med_endpt, |
| local_sdp, remote_sdp, mi); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjmedia_stream_info_from_sdp() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| |
| /* Codec parameter of stream info (si->param) can be NULL if |
| * the stream is rejected or disabled. |
| */ |
| /* Override ptime, if this option is specified. */ |
| if (pjsua_var.media_cfg.ptime != 0 && si->param) { |
| si->param->setting.frm_per_pkt = (pj_uint8_t) |
| (pjsua_var.media_cfg.ptime / si->param->info.frm_ptime); |
| if (si->param->setting.frm_per_pkt == 0) |
| si->param->setting.frm_per_pkt = 1; |
| } |
| |
| /* Disable VAD, if this option is specified. */ |
| if (pjsua_var.media_cfg.no_vad && si->param) { |
| si->param->setting.vad = 0; |
| } |
| |
| /* Check if this media is changed */ |
| stream_info.type = PJMEDIA_TYPE_AUDIO; |
| stream_info.info.aud = the_si; |
| if (pjsua_var.media_cfg.no_smart_media_update || |
| is_media_changed(call, mi, &stream_info)) |
| { |
| media_changed = PJ_TRUE; |
| /* Stop the media */ |
| stop_media_stream(call, mi); |
| } else { |
| PJ_LOG(4,(THIS_FILE, "Call %d: stream #%d (audio) unchanged.", |
| call_id, mi)); |
| } |
| |
| /* Check if no media is active */ |
| if (si->dir == PJMEDIA_DIR_NONE) { |
| |
| /* Update call media state and direction */ |
| call_med->state = PJSUA_CALL_MEDIA_NONE; |
| call_med->dir = PJMEDIA_DIR_NONE; |
| |
| } else { |
| pjmedia_transport_info tp_info; |
| pjmedia_srtp_info *srtp_info; |
| |
| /* Start/restart media transport based on info in SDP */ |
| status = pjmedia_transport_media_start(call_med->tp, |
| tmp_pool, local_sdp, |
| remote_sdp, mi); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjmedia_transport_media_start() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_RUNNING); |
| |
| /* Get remote SRTP usage policy */ |
| pjmedia_transport_info_init(&tp_info); |
| pjmedia_transport_get_info(call_med->tp, &tp_info); |
| srtp_info = (pjmedia_srtp_info*) |
| pjmedia_transport_info_get_spc_info( |
| &tp_info, PJMEDIA_TRANSPORT_TYPE_SRTP); |
| if (srtp_info) { |
| call_med->rem_srtp_use = srtp_info->peer_use; |
| } |
| |
| /* Update audio channel */ |
| if (media_changed) { |
| status = pjsua_aud_channel_update(call_med, |
| call->inv->pool, si, |
| local_sdp, remote_sdp); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjsua_aud_channel_update() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| } |
| |
| /* Call media direction */ |
| call_med->dir = si->dir; |
| |
| /* Call media state */ |
| if (call->local_hold) |
| call_med->state = PJSUA_CALL_MEDIA_LOCAL_HOLD; |
| else if (call_med->dir == PJMEDIA_DIR_DECODING) |
| call_med->state = PJSUA_CALL_MEDIA_REMOTE_HOLD; |
| else |
| call_med->state = PJSUA_CALL_MEDIA_ACTIVE; |
| } |
| |
| /* Print info. */ |
| if (status == PJ_SUCCESS) { |
| char info[80]; |
| int info_len = 0; |
| int len; |
| const char *dir; |
| |
| switch (si->dir) { |
| case PJMEDIA_DIR_NONE: |
| dir = "inactive"; |
| break; |
| case PJMEDIA_DIR_ENCODING: |
| dir = "sendonly"; |
| break; |
| case PJMEDIA_DIR_DECODING: |
| dir = "recvonly"; |
| break; |
| case PJMEDIA_DIR_ENCODING_DECODING: |
| dir = "sendrecv"; |
| break; |
| default: |
| dir = "unknown"; |
| break; |
| } |
| len = pj_ansi_sprintf( info+info_len, |
| ", stream #%d: %.*s (%s)", mi, |
| (int)si->fmt.encoding_name.slen, |
| si->fmt.encoding_name.ptr, |
| dir); |
| if (len > 0) |
| info_len += len; |
| PJ_LOG(4,(THIS_FILE,"Audio updated%s", info)); |
| } |
| |
| |
| if (call->audio_idx==-1 && status==PJ_SUCCESS && |
| si->dir != PJMEDIA_DIR_NONE) |
| { |
| call->audio_idx = mi; |
| } |
| |
| #if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0) |
| } else if (call_med->type==PJMEDIA_TYPE_VIDEO) { |
| pjmedia_vid_stream_info the_si, *si = &the_si; |
| pjsua_stream_info stream_info; |
| |
| status = pjmedia_vid_stream_info_from_sdp( |
| si, tmp_pool, pjsua_var.med_endpt, |
| local_sdp, remote_sdp, mi); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjmedia_vid_stream_info_from_sdp() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| |
| /* Check if this media is changed */ |
| stream_info.type = PJMEDIA_TYPE_VIDEO; |
| stream_info.info.vid = the_si; |
| if (is_media_changed(call, mi, &stream_info)) { |
| media_changed = PJ_TRUE; |
| /* Stop the media */ |
| stop_media_stream(call, mi); |
| } else { |
| PJ_LOG(4,(THIS_FILE, "Call %d: stream #%d (video) unchanged.", |
| call_id, mi)); |
| } |
| |
| /* Check if no media is active */ |
| if (si->dir == PJMEDIA_DIR_NONE) { |
| |
| /* Update call media state and direction */ |
| call_med->state = PJSUA_CALL_MEDIA_NONE; |
| call_med->dir = PJMEDIA_DIR_NONE; |
| |
| } else { |
| pjmedia_transport_info tp_info; |
| pjmedia_srtp_info *srtp_info; |
| |
| /* Start/restart media transport */ |
| status = pjmedia_transport_media_start(call_med->tp, |
| tmp_pool, local_sdp, |
| remote_sdp, mi); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjmedia_transport_media_start() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_RUNNING); |
| |
| /* Get remote SRTP usage policy */ |
| pjmedia_transport_info_init(&tp_info); |
| pjmedia_transport_get_info(call_med->tp, &tp_info); |
| srtp_info = (pjmedia_srtp_info*) |
| pjmedia_transport_info_get_spc_info( |
| &tp_info, PJMEDIA_TRANSPORT_TYPE_SRTP); |
| if (srtp_info) { |
| call_med->rem_srtp_use = srtp_info->peer_use; |
| } |
| |
| /* Update audio channel */ |
| if (media_changed) { |
| status = pjsua_vid_channel_update(call_med, |
| call->inv->pool, si, |
| local_sdp, remote_sdp); |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, |
| "pjsua_vid_channel_update() failed " |
| "for call_id %d media %d", |
| call_id, mi)); |
| continue; |
| } |
| } |
| |
| /* Call media direction */ |
| call_med->dir = si->dir; |
| |
| /* Call media state */ |
| if (call->local_hold) |
| call_med->state = PJSUA_CALL_MEDIA_LOCAL_HOLD; |
| else if (call_med->dir == PJMEDIA_DIR_DECODING) |
| call_med->state = PJSUA_CALL_MEDIA_REMOTE_HOLD; |
| else |
| call_med->state = PJSUA_CALL_MEDIA_ACTIVE; |
| } |
| |
| /* Print info. */ |
| { |
| char info[80]; |
| int info_len = 0; |
| int len; |
| const char *dir; |
| |
| switch (si->dir) { |
| case PJMEDIA_DIR_NONE: |
| dir = "inactive"; |
| break; |
| case PJMEDIA_DIR_ENCODING: |
| dir = "sendonly"; |
| break; |
| case PJMEDIA_DIR_DECODING: |
| dir = "recvonly"; |
| break; |
| case PJMEDIA_DIR_ENCODING_DECODING: |
| dir = "sendrecv"; |
| break; |
| default: |
| dir = "unknown"; |
| break; |
| } |
| len = pj_ansi_sprintf( info+info_len, |
| ", stream #%d: %.*s (%s)", mi, |
| (int)si->codec_info.encoding_name.slen, |
| si->codec_info.encoding_name.ptr, |
| dir); |
| if (len > 0) |
| info_len += len; |
| PJ_LOG(4,(THIS_FILE,"Video updated%s", info)); |
| } |
| |
| #endif |
| } else { |
| status = PJMEDIA_EINVALIMEDIATYPE; |
| } |
| |
| /* Close the transport of deactivated media, need this here as media |
| * can be deactivated by the SDP negotiation and the max media count |
| * (account) setting. |
| */ |
| if (local_sdp->media[mi]->desc.port==0 && call_med->tp) { |
| pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL); |
| pjmedia_transport_close(call_med->tp); |
| call_med->tp = call_med->tp_orig = NULL; |
| } |
| |
| if (status != PJ_SUCCESS) { |
| PJ_PERROR(1,(THIS_FILE, status, "Error updating media call%02d:%d", |
| call_id, mi)); |
| } else { |
| got_media = PJ_TRUE; |
| } |
| } |
| |
| /* Update call media from provisional media */ |
| call->med_cnt = call->med_prov_cnt; |
| pj_memcpy(call->media, call->media_prov, |
| sizeof(call->media_prov[0]) * call->med_prov_cnt); |
| |
| /* Perform SDP re-negotiation if needed. */ |
| if (got_media && need_renego_sdp) { |
| pjmedia_sdp_neg *neg = call->inv->neg; |
| |
| /* This should only happen when we are the answerer. */ |
| PJ_ASSERT_RETURN(neg && !pjmedia_sdp_neg_was_answer_remote(neg), |
| PJMEDIA_SDPNEG_EINSTATE); |
| |
| status = pjmedia_sdp_neg_set_remote_offer(tmp_pool, neg, remote_sdp); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| status = pjmedia_sdp_neg_set_local_answer(tmp_pool, neg, local_sdp); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| |
| status = pjmedia_sdp_neg_negotiate(tmp_pool, neg, 0); |
| if (status != PJ_SUCCESS) |
| goto on_error; |
| } |
| |
| pj_log_pop_indent(); |
| return (got_media? PJ_SUCCESS : PJMEDIA_SDPNEG_ENOMEDIA); |
| |
| on_error: |
| pj_log_pop_indent(); |
| return status; |
| } |
| |
| /***************************************************************************** |
| * Codecs. |
| */ |
| |
| /* |
| * Enum all supported codecs in the system. |
| */ |
| PJ_DEF(pj_status_t) pjsua_enum_codecs( pjsua_codec_info id[], |
| unsigned *p_count ) |
| { |
| pjmedia_codec_mgr *codec_mgr; |
| pjmedia_codec_info info[32]; |
| unsigned i, count, prio[32]; |
| pj_status_t status; |
| |
| codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt); |
| count = PJ_ARRAY_SIZE(info); |
| status = pjmedia_codec_mgr_enum_codecs( codec_mgr, &count, info, prio); |
| if (status != PJ_SUCCESS) { |
| *p_count = 0; |
| return status; |
| } |
| |
| if (count > *p_count) count = *p_count; |
| |
| for (i=0; i<count; ++i) { |
| pj_bzero(&id[i], sizeof(pjsua_codec_info)); |
| |
| pjmedia_codec_info_to_id(&info[i], id[i].buf_, sizeof(id[i].buf_)); |
| id[i].codec_id = pj_str(id[i].buf_); |
| id[i].priority = (pj_uint8_t) prio[i]; |
| } |
| |
| *p_count = count; |
| |
| return PJ_SUCCESS; |
| } |
| |
| |
| /* |
| * Change codec priority. |
| */ |
| PJ_DEF(pj_status_t) pjsua_codec_set_priority( const pj_str_t *codec_id, |
| pj_uint8_t priority ) |
| { |
| const pj_str_t all = { NULL, 0 }; |
| pjmedia_codec_mgr *codec_mgr; |
| |
| codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt); |
| |
| if (codec_id->slen==1 && *codec_id->ptr=='*') |
| codec_id = &all; |
| |
| return pjmedia_codec_mgr_set_codec_priority(codec_mgr, codec_id, |
| priority); |
| } |
| |
| |
| /* |
| * Get codec parameters. |
| */ |
| PJ_DEF(pj_status_t) pjsua_codec_get_param( const pj_str_t *codec_id, |
| pjmedia_codec_param *param ) |
| { |
| const pj_str_t all = { NULL, 0 }; |
| const pjmedia_codec_info *info; |
| pjmedia_codec_mgr *codec_mgr; |
| unsigned count = 1; |
| pj_status_t status; |
| |
| codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt); |
| |
| if (codec_id->slen==1 && *codec_id->ptr=='*') |
| codec_id = &all; |
| |
| status = pjmedia_codec_mgr_find_codecs_by_id(codec_mgr, codec_id, |
| &count, &info, NULL); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| if (count != 1) |
| return (count > 1? PJ_ETOOMANY : PJ_ENOTFOUND); |
| |
| status = pjmedia_codec_mgr_get_default_param( codec_mgr, info, param); |
| return status; |
| } |
| |
| |
| /* |
| * Set codec parameters. |
| */ |
| PJ_DEF(pj_status_t) pjsua_codec_set_param( const pj_str_t *codec_id, |
| const pjmedia_codec_param *param) |
| { |
| const pjmedia_codec_info *info[2]; |
| pjmedia_codec_mgr *codec_mgr; |
| unsigned count = 2; |
| pj_status_t status; |
| |
| codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt); |
| |
| status = pjmedia_codec_mgr_find_codecs_by_id(codec_mgr, codec_id, |
| &count, info, NULL); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| /* Codec ID should be specific, except for G.722.1 */ |
| if (count > 1 && |
| pj_strnicmp2(codec_id, "G7221/16", 8) != 0 && |
| pj_strnicmp2(codec_id, "G7221/32", 8) != 0) |
| { |
| pj_assert(!"Codec ID is not specific"); |
| return PJ_ETOOMANY; |
| } |
| |
| status = pjmedia_codec_mgr_set_default_param(codec_mgr, info[0], param); |
| return status; |
| } |
| |
| |
| pj_status_t pjsua_media_apply_xml_control(pjsua_call_id call_id, |
| const pj_str_t *xml_st) |
| { |
| #if PJMEDIA_HAS_VIDEO |
| pjsua_call *call = &pjsua_var.calls[call_id]; |
| const pj_str_t PICT_FAST_UPDATE = {"picture_fast_update", 19}; |
| |
| if (pj_strstr(xml_st, &PICT_FAST_UPDATE)) { |
| unsigned i; |
| |
| PJ_LOG(4,(THIS_FILE, "Received keyframe request via SIP INFO")); |
| |
| for (i = 0; i < call->med_cnt; ++i) { |
| pjsua_call_media *cm = &call->media[i]; |
| if (cm->type != PJMEDIA_TYPE_VIDEO || !cm->strm.v.stream) |
| continue; |
| |
| pjmedia_vid_stream_send_keyframe(cm->strm.v.stream); |
| } |
| |
| return PJ_SUCCESS; |
| } |
| #endif |
| |
| /* Just to avoid compiler warning of unused var */ |
| PJ_UNUSED_ARG(call_id); |
| PJ_UNUSED_ARG(xml_st); |
| |
| return PJ_ENOTSUP; |
| } |
| |