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/* $Id: pjsua_media.c 4182 2012-06-27 07:12:23Z ming $ */
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* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
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* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <pjsua-lib/pjsua.h>
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#include <pjsua-lib/pjsua_internal.h>
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#define THIS_FILE "pjsua_media.c"
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#define DEFAULT_RTP_PORT 4000
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#ifndef PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT
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# define PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT 0
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/* Next RTP port to be used */
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static pj_uint16_t next_rtp_port;
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static void pjsua_media_config_dup(pj_pool_t *pool,
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pjsua_media_config *dst,
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const pjsua_media_config *src)
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pj_memcpy(dst, src, sizeof(*src));
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pj_strdup(pool, &dst->turn_server, &src->turn_server);
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pj_stun_auth_cred_dup(pool, &dst->turn_auth_cred, &src->turn_auth_cred);
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* Init media subsystems.
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pj_status_t pjsua_media_subsys_init(const pjsua_media_config *cfg)
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/* Specify which audio device settings are save-able */
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pjsua_var.aud_svmask = 0xFFFFFFFF;
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/* These are not-settable */
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pjsua_var.aud_svmask &= ~(PJMEDIA_AUD_DEV_CAP_EXT_FORMAT |
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PJMEDIA_AUD_DEV_CAP_INPUT_SIGNAL_METER |
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PJMEDIA_AUD_DEV_CAP_OUTPUT_SIGNAL_METER);
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/* EC settings use different API */
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pjsua_var.aud_svmask &= ~(PJMEDIA_AUD_DEV_CAP_EC |
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PJMEDIA_AUD_DEV_CAP_EC_TAIL);
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/* Copy configuration */
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pjsua_media_config_dup(pjsua_var.pool, &pjsua_var.media_cfg, cfg);
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/* Normalize configuration */
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if (pjsua_var.media_cfg.snd_clock_rate == 0) {
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pjsua_var.media_cfg.snd_clock_rate = pjsua_var.media_cfg.clock_rate;
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if (pjsua_var.media_cfg.has_ioqueue &&
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pjsua_var.media_cfg.thread_cnt == 0)
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pjsua_var.media_cfg.thread_cnt = 1;
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if (pjsua_var.media_cfg.max_media_ports < pjsua_var.ua_cfg.max_calls) {
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pjsua_var.media_cfg.max_media_ports = pjsua_var.ua_cfg.max_calls + 2;
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/* Create media endpoint. */
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status = pjmedia_endpt_create(&pjsua_var.cp.factory,
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pjsua_var.media_cfg.has_ioqueue? NULL :
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pjsip_endpt_get_ioqueue(pjsua_var.endpt),
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pjsua_var.media_cfg.thread_cnt,
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&pjsua_var.med_endpt);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE,
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"Media stack initialization has returned error",
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status = pjsua_aud_subsys_init();
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if (status != PJ_SUCCESS)
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#if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0)
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/* Initialize SRTP library (ticket #788). */
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status = pjmedia_srtp_init_lib(pjsua_var.med_endpt);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "Error initializing SRTP library",
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#if PJMEDIA_HAS_VIDEO
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status = pjsua_vid_subsys_init();
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if (status != PJ_SUCCESS)
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* Start pjsua media subsystem.
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pj_status_t pjsua_media_subsys_start(void)
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pj_log_push_indent();
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#if DISABLED_FOR_TICKET_1185
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/* Create media for calls, if none is specified */
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if (pjsua_var.calls[0].media[0].tp == NULL) {
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pjsua_transport_config transport_cfg;
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/* Create default transport config */
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pjsua_transport_config_default(&transport_cfg);
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transport_cfg.port = DEFAULT_RTP_PORT;
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status = pjsua_media_transports_create(&transport_cfg);
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if (status != PJ_SUCCESS) {
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status = pjsua_aud_subsys_start();
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if (status != PJ_SUCCESS) {
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#if PJMEDIA_HAS_VIDEO
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status = pjsua_vid_subsys_start();
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if (status != PJ_SUCCESS) {
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pjsua_aud_subsys_destroy();
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/* Perform NAT detection */
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status = pjsua_detect_nat_type();
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if (status != PJ_SUCCESS) {
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PJ_PERROR(1,(THIS_FILE, status, "NAT type detection failed"));
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* Destroy pjsua media subsystem.
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pj_status_t pjsua_media_subsys_destroy(unsigned flags)
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PJ_LOG(4,(THIS_FILE, "Shutting down media.."));
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pj_log_push_indent();
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if (pjsua_var.med_endpt) {
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pjsua_aud_subsys_destroy();
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/* Close media transports */
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for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
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/* TODO: check if we're not allowed to send to network in the
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* "flags", and if so do not do TURN allocation...
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PJ_UNUSED_ARG(flags);
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pjsua_media_channel_deinit(i);
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/* Destroy media endpoint. */
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if (pjsua_var.med_endpt) {
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# if PJMEDIA_HAS_VIDEO
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pjsua_vid_subsys_destroy();
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pjmedia_endpt_destroy(pjsua_var.med_endpt);
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pjsua_var.med_endpt = NULL;
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/* Deinitialize sound subsystem */
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// Not necessary, as pjmedia_snd_deinit() should have been called
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// in pjmedia_endpt_destroy().
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//pjmedia_snd_deinit();
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* Create RTP and RTCP socket pair, and possibly resolve their public
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static pj_status_t create_rtp_rtcp_sock(const pjsua_transport_config *cfg,
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pjmedia_sock_info *skinfo)
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pj_sockaddr_in bound_addr;
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pj_sockaddr_in mapped_addr[2];
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pj_status_t status = PJ_SUCCESS;
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char addr_buf[PJ_INET6_ADDRSTRLEN+2];
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/* Make sure STUN server resolution has completed */
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status = resolve_stun_server(PJ_TRUE);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
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if (next_rtp_port == 0)
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next_rtp_port = (pj_uint16_t)cfg->port;
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if (next_rtp_port == 0)
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next_rtp_port = (pj_uint16_t)40000;
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sock[i] = PJ_INVALID_SOCKET;
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bound_addr.sin_addr.s_addr = PJ_INADDR_ANY;
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if (cfg->bound_addr.slen) {
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status = pj_sockaddr_in_set_str_addr(&bound_addr, &cfg->bound_addr);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "Unable to resolve transport bind address",
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/* Loop retry to bind RTP and RTCP sockets. */
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for (i=0; i<RTP_RETRY; ++i, next_rtp_port += 2) {
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/* Create RTP socket. */
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status = pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, &sock[0]);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "socket() error", status);
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/* Apply QoS to RTP socket, if specified */
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status = pj_sock_apply_qos2(sock[0], cfg->qos_type,
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2, THIS_FILE, "RTP socket");
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/* Bind RTP socket */
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status=pj_sock_bind_in(sock[0], pj_ntohl(bound_addr.sin_addr.s_addr),
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if (status != PJ_SUCCESS) {
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pj_sock_close(sock[0]);
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sock[0] = PJ_INVALID_SOCKET;
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/* Create RTCP socket. */
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status = pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, &sock[1]);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "socket() error", status);
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pj_sock_close(sock[0]);
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/* Apply QoS to RTCP socket, if specified */
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status = pj_sock_apply_qos2(sock[1], cfg->qos_type,
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2, THIS_FILE, "RTCP socket");
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/* Bind RTCP socket */
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status=pj_sock_bind_in(sock[1], pj_ntohl(bound_addr.sin_addr.s_addr),
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(pj_uint16_t)(next_rtp_port+1));
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if (status != PJ_SUCCESS) {
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pj_sock_close(sock[0]);
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sock[0] = PJ_INVALID_SOCKET;
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pj_sock_close(sock[1]);
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sock[1] = PJ_INVALID_SOCKET;
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* If we're configured to use STUN, then find out the mapped address,
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* and make sure that the mapped RTCP port is adjacent with the RTP.
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if (pjsua_var.stun_srv.addr.sa_family != 0) {
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pj_ansi_strcpy(ip_addr,
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pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr));
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stun_srv = pj_str(ip_addr);
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status=pjstun_get_mapped_addr(&pjsua_var.cp.factory, 2, sock,
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&stun_srv, pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port),
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&stun_srv, pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port),
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "STUN resolve error", status);
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#if PJSUA_REQUIRE_CONSECUTIVE_RTCP_PORT
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if (pj_ntohs(mapped_addr[1].sin_port) ==
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pj_ntohs(mapped_addr[0].sin_port)+1)
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pj_sock_close(sock[0]);
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sock[0] = PJ_INVALID_SOCKET;
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pj_sock_close(sock[1]);
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sock[1] = PJ_INVALID_SOCKET;
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if (pj_ntohs(mapped_addr[1].sin_port) !=
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pj_ntohs(mapped_addr[0].sin_port)+1)
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"Note: STUN mapped RTCP port %d is not adjacent"
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pj_ntohs(mapped_addr[1].sin_port),
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pj_ntohs(mapped_addr[0].sin_port)));
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} else if (cfg->public_addr.slen) {
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status = pj_sockaddr_in_init(&mapped_addr[0], &cfg->public_addr,
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(pj_uint16_t)next_rtp_port);
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if (status != PJ_SUCCESS)
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status = pj_sockaddr_in_init(&mapped_addr[1], &cfg->public_addr,
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(pj_uint16_t)(next_rtp_port+1));
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if (status != PJ_SUCCESS)
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if (bound_addr.sin_addr.s_addr == 0) {
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/* Get local IP address. */
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status = pj_gethostip(pj_AF_INET(), &addr);
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if (status != PJ_SUCCESS)
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bound_addr.sin_addr.s_addr = addr.ipv4.sin_addr.s_addr;
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for (i=0; i<2; ++i) {
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pj_sockaddr_in_init(&mapped_addr[i], NULL, 0);
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mapped_addr[i].sin_addr.s_addr = bound_addr.sin_addr.s_addr;
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mapped_addr[0].sin_port=pj_htons((pj_uint16_t)next_rtp_port);
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mapped_addr[1].sin_port=pj_htons((pj_uint16_t)(next_rtp_port+1));
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if (sock[0] == PJ_INVALID_SOCKET) {
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"Unable to find appropriate RTP/RTCP ports combination"));
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skinfo->rtp_sock = sock[0];
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pj_memcpy(&skinfo->rtp_addr_name,
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&mapped_addr[0], sizeof(pj_sockaddr_in));
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skinfo->rtcp_sock = sock[1];
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pj_memcpy(&skinfo->rtcp_addr_name,
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&mapped_addr[1], sizeof(pj_sockaddr_in));
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PJ_LOG(4,(THIS_FILE, "RTP socket reachable at %s",
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pj_sockaddr_print(&skinfo->rtp_addr_name, addr_buf,
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sizeof(addr_buf), 3)));
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PJ_LOG(4,(THIS_FILE, "RTCP socket reachable at %s",
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pj_sockaddr_print(&skinfo->rtcp_addr_name, addr_buf,
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sizeof(addr_buf), 3)));
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for (i=0; i<2; ++i) {
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if (sock[i] != PJ_INVALID_SOCKET)
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pj_sock_close(sock[i]);
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/* Create normal UDP media transports */
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static pj_status_t create_udp_media_transport(const pjsua_transport_config *cfg,
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pjsua_call_media *call_med)
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pjmedia_sock_info skinfo;
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status = create_rtp_rtcp_sock(cfg, &skinfo);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "Unable to create RTP/RTCP socket",
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status = pjmedia_transport_udp_attach(pjsua_var.med_endpt, NULL,
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&skinfo, 0, &call_med->tp);
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if (status != PJ_SUCCESS) {
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pjsua_perror(THIS_FILE, "Unable to create media transport",
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pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING,
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pjsua_var.media_cfg.tx_drop_pct);
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pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING,
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pjsua_var.media_cfg.rx_drop_pct);
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call_med->tp_ready = PJ_SUCCESS;
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pjmedia_transport_close(call_med->tp);
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#if DISABLED_FOR_TICKET_1185
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/* Create normal UDP media transports */
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static pj_status_t create_udp_media_transports(pjsua_transport_config *cfg)
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for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) {
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pjsua_call *call = &pjsua_var.calls[i];
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for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
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pjsua_call_media *call_med = &call->media[strm_idx];
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status = create_udp_media_transport(cfg, &call_med->tp);
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if (status != PJ_SUCCESS)
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for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) {
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pjsua_call *call = &pjsua_var.calls[i];
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for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
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pjsua_call_media *call_med = &call->media[strm_idx];
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pjmedia_transport_close(call_med->tp);
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static void med_tp_timer_cb(void *user_data)
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pjsua_call_media *call_med = (pjsua_call_media*)user_data;
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pjsua_call *call = NULL;
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pjsip_dialog *dlg = NULL;
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acquire_call("med_tp_timer_cb", call_med->call->index, &call, &dlg);
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call_med->tp_ready = call_med->tp_result;
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if (call_med->med_create_cb)
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(*call_med->med_create_cb)(call_med, call_med->tp_ready,
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call_med->call->secure_level, NULL);
529
pjsip_dlg_dec_lock(dlg);
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/* This callback is called when ICE negotiation completes */
533
static void on_ice_complete(pjmedia_transport *tp,
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pjsua_call_media *call_med = (pjsua_call_media*)tp->user_data;
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case PJ_ICE_STRANS_OP_INIT:
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call_med->tp_result = result;
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pjsua_schedule_timer2(&med_tp_timer_cb, call_med, 1);
547
case PJ_ICE_STRANS_OP_NEGOTIATION:
548
if (result != PJ_SUCCESS) {
549
call_med->state = PJSUA_CALL_MEDIA_ERROR;
550
call_med->dir = PJMEDIA_DIR_NONE;
552
if (call_med->call && pjsua_var.ua_cfg.cb.on_call_media_state) {
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pjsua_var.ua_cfg.cb.on_call_media_state(call_med->call->index);
555
} else if (call_med->call) {
556
/* Send UPDATE if default transport address is different than
557
* what was advertised (ticket #881)
559
pjmedia_transport_info tpinfo;
560
pjmedia_ice_transport_info *ii = NULL;
563
pjmedia_transport_info_init(&tpinfo);
564
pjmedia_transport_get_info(tp, &tpinfo);
565
for (i=0; i<tpinfo.specific_info_cnt; ++i) {
566
if (tpinfo.spc_info[i].type==PJMEDIA_TRANSPORT_TYPE_ICE) {
567
ii = (pjmedia_ice_transport_info*)
568
tpinfo.spc_info[i].buffer;
573
if (ii && ii->role==PJ_ICE_SESS_ROLE_CONTROLLING &&
574
pj_sockaddr_cmp(&tpinfo.sock_info.rtp_addr_name,
575
&call_med->rtp_addr))
577
pj_bool_t use_update;
578
const pj_str_t STR_UPDATE = { "UPDATE", 6 };
579
pjsip_dialog_cap_status support_update;
582
dlg = call_med->call->inv->dlg;
583
support_update = pjsip_dlg_remote_has_cap(dlg, PJSIP_H_ALLOW,
585
use_update = (support_update == PJSIP_DIALOG_CAP_SUPPORTED);
588
"ICE default transport address has changed for "
589
"call %d, sending %s",
590
call_med->call->index,
591
(use_update ? "UPDATE" : "re-INVITE")));
594
pjsua_call_update(call_med->call->index, 0, NULL);
596
pjsua_call_reinvite(call_med->call->index, 0, NULL);
600
case PJ_ICE_STRANS_OP_KEEP_ALIVE:
601
if (result != PJ_SUCCESS) {
602
PJ_PERROR(4,(THIS_FILE, result,
603
"ICE keep alive failure for transport %d:%d",
604
call_med->call->index, call_med->idx));
606
if (pjsua_var.ua_cfg.cb.on_call_media_transport_state) {
607
pjsua_med_tp_state_info info;
609
pj_bzero(&info, sizeof(info));
610
info.med_idx = call_med->idx;
611
info.state = call_med->tp_st;
612
info.status = result;
614
(*pjsua_var.ua_cfg.cb.on_call_media_transport_state)(
615
call_med->call->index, &info);
617
if (pjsua_var.ua_cfg.cb.on_ice_transport_error) {
618
pjsua_call_id id = call_med->call->index;
619
(*pjsua_var.ua_cfg.cb.on_ice_transport_error)(id, op, result,
627
/* Parse "HOST:PORT" format */
628
static pj_status_t parse_host_port(const pj_str_t *host_port,
629
pj_str_t *host, pj_uint16_t *port)
633
str_port.ptr = pj_strchr(host_port, ':');
634
if (str_port.ptr != NULL) {
637
host->ptr = host_port->ptr;
638
host->slen = (str_port.ptr - host->ptr);
640
str_port.slen = host_port->slen - host->slen - 1;
641
iport = (int)pj_strtoul(&str_port);
642
if (iport < 1 || iport > 65535)
644
*port = (pj_uint16_t)iport;
653
/* Create ICE media transports (when ice is enabled) */
654
static pj_status_t create_ice_media_transport(
655
const pjsua_transport_config *cfg,
656
pjsua_call_media *call_med,
659
char stunip[PJ_INET6_ADDRSTRLEN];
660
pj_ice_strans_cfg ice_cfg;
661
pjmedia_ice_cb ice_cb;
666
/* Make sure STUN server resolution has completed */
667
status = resolve_stun_server(PJ_TRUE);
668
if (status != PJ_SUCCESS) {
669
pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
673
/* Create ICE stream transport configuration */
674
pj_ice_strans_cfg_default(&ice_cfg);
675
pj_stun_config_init(&ice_cfg.stun_cfg, &pjsua_var.cp.factory, 0,
676
pjsip_endpt_get_ioqueue(pjsua_var.endpt),
677
pjsip_endpt_get_timer_heap(pjsua_var.endpt));
679
ice_cfg.af = pj_AF_INET();
680
ice_cfg.resolver = pjsua_var.resolver;
682
ice_cfg.opt = pjsua_var.media_cfg.ice_opt;
684
/* Configure STUN settings */
685
if (pj_sockaddr_has_addr(&pjsua_var.stun_srv)) {
686
pj_sockaddr_print(&pjsua_var.stun_srv, stunip, sizeof(stunip), 0);
687
ice_cfg.stun.server = pj_str(stunip);
688
ice_cfg.stun.port = pj_sockaddr_get_port(&pjsua_var.stun_srv);
690
if (pjsua_var.media_cfg.ice_max_host_cands >= 0)
691
ice_cfg.stun.max_host_cands = pjsua_var.media_cfg.ice_max_host_cands;
693
/* Copy QoS setting to STUN setting */
694
ice_cfg.stun.cfg.qos_type = cfg->qos_type;
695
pj_memcpy(&ice_cfg.stun.cfg.qos_params, &cfg->qos_params,
696
sizeof(cfg->qos_params));
698
/* Configure TURN settings */
699
if (pjsua_var.media_cfg.enable_turn) {
700
status = parse_host_port(&pjsua_var.media_cfg.turn_server,
701
&ice_cfg.turn.server,
703
if (status != PJ_SUCCESS || ice_cfg.turn.server.slen == 0) {
704
PJ_LOG(1,(THIS_FILE, "Invalid TURN server setting"));
707
if (ice_cfg.turn.port == 0)
708
ice_cfg.turn.port = 3479;
709
ice_cfg.turn.conn_type = pjsua_var.media_cfg.turn_conn_type;
710
pj_memcpy(&ice_cfg.turn.auth_cred,
711
&pjsua_var.media_cfg.turn_auth_cred,
712
sizeof(ice_cfg.turn.auth_cred));
714
/* Copy QoS setting to TURN setting */
715
ice_cfg.turn.cfg.qos_type = cfg->qos_type;
716
pj_memcpy(&ice_cfg.turn.cfg.qos_params, &cfg->qos_params,
717
sizeof(cfg->qos_params));
720
pj_bzero(&ice_cb, sizeof(pjmedia_ice_cb));
721
ice_cb.on_ice_complete = &on_ice_complete;
722
pj_ansi_snprintf(name, sizeof(name), "icetp%02d", call_med->idx);
723
call_med->tp_ready = PJ_EPENDING;
726
if (PJMEDIA_ADVERTISE_RTCP && !pjsua_var.media_cfg.ice_no_rtcp)
729
status = pjmedia_ice_create3(pjsua_var.med_endpt, name, comp_cnt,
730
&ice_cfg, &ice_cb, 0, call_med,
732
if (status != PJ_SUCCESS) {
733
pjsua_perror(THIS_FILE, "Unable to create ICE media transport",
738
/* Wait until transport is initialized, or time out */
740
pj_bool_t has_pjsua_lock = PJSUA_LOCK_IS_LOCKED();
743
while (call_med->tp_ready == PJ_EPENDING) {
744
pjsua_handle_events(100);
750
if (async && call_med->tp_ready == PJ_EPENDING) {
752
} else if (call_med->tp_ready != PJ_SUCCESS) {
753
pjsua_perror(THIS_FILE, "Error initializing ICE media transport",
755
status = call_med->tp_ready;
759
pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING,
760
pjsua_var.media_cfg.tx_drop_pct);
762
pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING,
763
pjsua_var.media_cfg.rx_drop_pct);
768
if (call_med->tp != NULL) {
769
pjmedia_transport_close(call_med->tp);
776
#if DISABLED_FOR_TICKET_1185
777
/* Create ICE media transports (when ice is enabled) */
778
static pj_status_t create_ice_media_transports(pjsua_transport_config *cfg)
783
for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) {
784
pjsua_call *call = &pjsua_var.calls[i];
787
for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
788
pjsua_call_media *call_med = &call->media[strm_idx];
790
status = create_ice_media_transport(cfg, call_med);
791
if (status != PJ_SUCCESS)
799
for (i=0; i < pjsua_var.ua_cfg.max_calls; ++i) {
800
pjsua_call *call = &pjsua_var.calls[i];
803
for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
804
pjsua_call_media *call_med = &call->media[strm_idx];
807
pjmedia_transport_close(call_med->tp);
816
#if DISABLED_FOR_TICKET_1185
818
* Create media transports for all the calls. This function creates
819
* one UDP media transport for each call.
821
PJ_DEF(pj_status_t) pjsua_media_transports_create(
822
const pjsua_transport_config *app_cfg)
824
pjsua_transport_config cfg;
829
/* Make sure pjsua_init() has been called */
830
PJ_ASSERT_RETURN(pjsua_var.ua_cfg.max_calls>0, PJ_EINVALIDOP);
834
/* Delete existing media transports */
835
for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
836
pjsua_call *call = &pjsua_var.calls[i];
839
for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
840
pjsua_call_media *call_med = &call->media[strm_idx];
842
if (call_med->tp && call_med->tp_auto_del) {
843
pjmedia_transport_close(call_med->tp);
845
call_med->tp_orig = NULL;
851
pjsua_transport_config_dup(pjsua_var.pool, &cfg, app_cfg);
853
/* Create the transports */
854
if (pjsua_var.media_cfg.enable_ice) {
855
status = create_ice_media_transports(&cfg);
857
status = create_udp_media_transports(&cfg);
860
/* Set media transport auto_delete to True */
861
for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
862
pjsua_call *call = &pjsua_var.calls[i];
865
for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
866
pjsua_call_media *call_med = &call->media[strm_idx];
868
call_med->tp_auto_del = PJ_TRUE;
878
* Attach application's created media transports.
880
PJ_DEF(pj_status_t) pjsua_media_transports_attach(pjsua_media_transport tp[],
882
pj_bool_t auto_delete)
886
PJ_ASSERT_RETURN(tp && count==pjsua_var.ua_cfg.max_calls, PJ_EINVAL);
888
/* Assign the media transports */
889
for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
890
pjsua_call *call = &pjsua_var.calls[i];
893
for (strm_idx=0; strm_idx < call->med_cnt; ++strm_idx) {
894
pjsua_call_media *call_med = &call->media[strm_idx];
896
if (call_med->tp && call_med->tp_auto_del) {
897
pjmedia_transport_close(call_med->tp);
899
call_med->tp_orig = NULL;
903
PJ_TODO(remove_pjsua_media_transports_attach);
905
call->media[0].tp = tp[i].transport;
906
call->media[0].tp_auto_del = auto_delete;
913
/* Go through the list of media in the SDP, find acceptable media, and
914
* sort them based on the "quality" of the media, and store the indexes
915
* in the specified array. Media with the best quality will be listed
916
* first in the array. The quality factors considered currently is
919
static void sort_media(const pjmedia_sdp_session *sdp,
920
const pj_str_t *type,
921
pjmedia_srtp_use use_srtp,
924
unsigned *p_total_count)
928
int score[PJSUA_MAX_CALL_MEDIA];
930
pj_assert(*p_count >= PJSUA_MAX_CALL_MEDIA);
931
pj_assert(*p_total_count >= PJSUA_MAX_CALL_MEDIA);
935
for (i=0; i<PJSUA_MAX_CALL_MEDIA; ++i)
938
/* Score each media */
939
for (i=0; i<sdp->media_count && count<PJSUA_MAX_CALL_MEDIA; ++i) {
940
const pjmedia_sdp_media *m = sdp->media[i];
941
const pjmedia_sdp_conn *c;
943
/* Skip different media */
944
if (pj_stricmp(&m->desc.media, type) != 0) {
945
score[count++] = -22000;
949
c = m->conn? m->conn : sdp->conn;
951
/* Supported transports */
952
if (pj_stricmp2(&m->desc.transport, "RTP/SAVP")==0) {
954
case PJMEDIA_SRTP_MANDATORY:
955
case PJMEDIA_SRTP_OPTIONAL:
958
case PJMEDIA_SRTP_DISABLED:
963
} else if (pj_stricmp2(&m->desc.transport, "RTP/AVP")==0) {
965
case PJMEDIA_SRTP_MANDATORY:
969
case PJMEDIA_SRTP_OPTIONAL:
970
/* No change in score */
972
case PJMEDIA_SRTP_DISABLED:
980
/* Is media disabled? */
981
if (m->desc.port == 0)
984
/* Is media inactive? */
985
if (pjmedia_sdp_media_find_attr2(m, "inactive", NULL) ||
986
pj_strcmp2(&c->addr, "0.0.0.0") == 0)
995
/* Created sorted list based on quality */
996
for (i=0; i<count; ++i) {
1000
for (j=1; j<count; ++j) {
1001
if (score[j] > score[best])
1004
/* Don't put media with negative score, that media is unacceptable
1007
midx[i] = (pj_uint8_t)best;
1008
if (score[best] >= 0)
1010
if (score[best] > -22000)
1013
score[best] = -22000;
1018
/* Callback to receive media events */
1019
pj_status_t call_media_on_event(pjmedia_event *event,
1022
pjsua_call_media *call_med = (pjsua_call_media*)user_data;
1023
pjsua_call *call = call_med->call;
1024
pj_status_t status = PJ_SUCCESS;
1026
switch(event->type) {
1027
case PJMEDIA_EVENT_KEYFRAME_MISSING:
1028
if (call->opt.req_keyframe_method & PJSUA_VID_REQ_KEYFRAME_SIP_INFO)
1032
pj_get_timestamp(&now);
1033
if (pj_elapsed_msec(&call_med->last_req_keyframe, &now) >=
1034
PJSUA_VID_REQ_KEYFRAME_INTERVAL)
1036
pjsua_msg_data msg_data;
1037
const pj_str_t SIP_INFO = {"INFO", 4};
1038
const char *BODY_TYPE = "application/media_control+xml";
1040
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
1041
"<media_control><vc_primitive><to_encoder>"
1042
"<picture_fast_update/>"
1043
"</to_encoder></vc_primitive></media_control>";
1045
PJ_LOG(4,(THIS_FILE,
1046
"Sending video keyframe request via SIP INFO"));
1048
pjsua_msg_data_init(&msg_data);
1049
pj_cstr(&msg_data.content_type, BODY_TYPE);
1050
pj_cstr(&msg_data.msg_body, BODY);
1051
status = pjsua_call_send_request(call->index, &SIP_INFO,
1053
if (status != PJ_SUCCESS) {
1054
pj_perror(3, THIS_FILE, status,
1055
"Failed requesting keyframe via SIP INFO");
1057
call_med->last_req_keyframe = now;
1067
if (pjsua_var.ua_cfg.cb.on_call_media_event && call) {
1068
(*pjsua_var.ua_cfg.cb.on_call_media_event)(call->index,
1069
call_med->idx, event);
1075
/* Set media transport state and notify the application via the callback. */
1076
void pjsua_set_media_tp_state(pjsua_call_media *call_med,
1077
pjsua_med_tp_st tp_st)
1079
if (pjsua_var.ua_cfg.cb.on_call_media_transport_state &&
1080
call_med->tp_st != tp_st)
1082
pjsua_med_tp_state_info info;
1084
pj_bzero(&info, sizeof(info));
1085
info.med_idx = call_med->idx;
1087
info.status = call_med->tp_ready;
1088
(*pjsua_var.ua_cfg.cb.on_call_media_transport_state)(
1089
call_med->call->index, &info);
1092
call_med->tp_st = tp_st;
1095
/* Callback to resume pjsua_call_media_init() after media transport
1096
* creation is completed.
1098
static pj_status_t call_media_init_cb(pjsua_call_media *call_med,
1103
pjsua_acc *acc = &pjsua_var.acc[call_med->call->acc_id];
1104
pjmedia_transport_info tpinfo;
1107
if (status != PJ_SUCCESS)
1110
pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_ENCODING,
1111
pjsua_var.media_cfg.tx_drop_pct);
1113
pjmedia_transport_simulate_lost(call_med->tp, PJMEDIA_DIR_DECODING,
1114
pjsua_var.media_cfg.rx_drop_pct);
1116
if (call_med->tp_st == PJSUA_MED_TP_CREATING)
1117
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE);
1119
if (!call_med->tp_orig &&
1120
pjsua_var.ua_cfg.cb.on_create_media_transport)
1122
call_med->use_custom_med_tp = PJ_TRUE;
1124
call_med->use_custom_med_tp = PJ_FALSE;
1126
#if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0)
1127
/* This function may be called when SRTP transport already exists
1128
* (e.g: in re-invite, update), don't need to destroy/re-create.
1130
if (!call_med->tp_orig) {
1131
pjmedia_srtp_setting srtp_opt;
1132
pjmedia_transport *srtp = NULL;
1134
/* Check if SRTP requires secure signaling */
1135
if (acc->cfg.use_srtp != PJMEDIA_SRTP_DISABLED) {
1136
if (security_level < acc->cfg.srtp_secure_signaling) {
1137
err_code = PJSIP_SC_NOT_ACCEPTABLE;
1138
status = PJSIP_ESESSIONINSECURE;
1143
/* Always create SRTP adapter */
1144
pjmedia_srtp_setting_default(&srtp_opt);
1145
srtp_opt.close_member_tp = PJ_TRUE;
1147
/* If media session has been ever established, let's use remote's
1148
* preference in SRTP usage policy, especially when it is stricter.
1150
if (call_med->rem_srtp_use > acc->cfg.use_srtp)
1151
srtp_opt.use = call_med->rem_srtp_use;
1153
srtp_opt.use = acc->cfg.use_srtp;
1155
status = pjmedia_transport_srtp_create(pjsua_var.med_endpt,
1158
if (status != PJ_SUCCESS) {
1159
err_code = PJSIP_SC_INTERNAL_SERVER_ERROR;
1163
/* Set SRTP as current media transport */
1164
call_med->tp_orig = call_med->tp;
1165
call_med->tp = srtp;
1168
call_med->tp_orig = call_med->tp;
1169
PJ_UNUSED_ARG(security_level);
1173
pjmedia_transport_info_init(&tpinfo);
1174
pjmedia_transport_get_info(call_med->tp, &tpinfo);
1176
pj_sockaddr_cp(&call_med->rtp_addr, &tpinfo.sock_info.rtp_addr_name);
1180
if (status != PJ_SUCCESS && call_med->tp) {
1181
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL);
1182
pjmedia_transport_close(call_med->tp);
1183
call_med->tp = NULL;
1187
*sip_err_code = err_code;
1189
if (call_med->med_init_cb) {
1190
pjsua_med_tp_state_info info;
1192
pj_bzero(&info, sizeof(info));
1193
info.status = status;
1194
info.state = call_med->tp_st;
1195
info.med_idx = call_med->idx;
1196
info.sip_err_code = err_code;
1197
(*call_med->med_init_cb)(call_med->call->index, &info);
1203
/* Initialize the media line */
1204
pj_status_t pjsua_call_media_init(pjsua_call_media *call_med,
1206
const pjsua_transport_config *tcfg,
1210
pjsua_med_tp_state_cb cb)
1212
pj_status_t status = PJ_SUCCESS;
1215
* Note: this function may be called when the media already exists
1216
* (e.g. in reinvites, updates, etc.)
1218
call_med->type = type;
1220
/* Create the media transport for initial call. Here are the possible
1221
* media transport state and the action needed:
1222
* - PJSUA_MED_TP_NULL or call_med->tp==NULL, create one.
1223
* - PJSUA_MED_TP_RUNNING, do nothing.
1224
* - PJSUA_MED_TP_DISABLED, re-init (media_create(), etc). Currently,
1225
* this won't happen as media_channel_update() will always clean up
1226
* the unused transport of a disabled media.
1228
if (call_med->tp == NULL) {
1229
#if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0)
1230
/* While in initial call, set default video devices */
1231
if (type == PJMEDIA_TYPE_VIDEO) {
1232
status = pjsua_vid_channel_init(call_med);
1233
if (status != PJ_SUCCESS)
1238
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_CREATING);
1240
if (pjsua_var.media_cfg.enable_ice) {
1241
status = create_ice_media_transport(tcfg, call_med, async);
1242
if (async && status == PJ_EPENDING) {
1243
/* We will resume call media initialization in the
1244
* on_ice_complete() callback.
1246
call_med->med_create_cb = &call_media_init_cb;
1247
call_med->med_init_cb = cb;
1252
status = create_udp_media_transport(tcfg, call_med);
1255
if (status != PJ_SUCCESS) {
1256
PJ_PERROR(1,(THIS_FILE, status, "Error creating media transport"));
1260
/* Media transport creation completed immediately, so
1261
* we don't need to call the callback.
1263
call_med->med_init_cb = NULL;
1265
} else if (call_med->tp_st == PJSUA_MED_TP_DISABLED) {
1266
/* Media is being reenabled. */
1267
//pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE);
1269
pj_assert(!"Currently no media transport reuse");
1272
return call_media_init_cb(call_med, status, security_level,
1276
/* Callback to resume pjsua_media_channel_init() after media transport
1277
* initialization is completed.
1279
static pj_status_t media_channel_init_cb(pjsua_call_id call_id,
1280
const pjsua_med_tp_state_info *info)
1282
pjsua_call *call = &pjsua_var.calls[call_id];
1283
pj_status_t status = (info? info->status : PJ_SUCCESS);
1287
pj_mutex_lock(call->med_ch_mutex);
1289
/* Set the callback to NULL to indicate that the async operation
1292
call->media_prov[info->med_idx].med_init_cb = NULL;
1294
/* In case of failure, save the information to be returned
1295
* by the last media transport to finish.
1297
if (info->status != PJ_SUCCESS)
1298
pj_memcpy(&call->med_ch_info, info, sizeof(info));
1300
/* Check whether all the call's medias have finished calling their
1303
for (mi=0; mi < call->med_prov_cnt; ++mi) {
1304
pjsua_call_media *call_med = &call->media_prov[mi];
1306
if (call_med->med_init_cb) {
1307
pj_mutex_unlock(call->med_ch_mutex);
1311
if (call_med->tp_ready != PJ_SUCCESS)
1312
status = call_med->tp_ready;
1315
/* OK, we are called by the last media transport finished. */
1316
pj_mutex_unlock(call->med_ch_mutex);
1319
if (call->med_ch_mutex) {
1320
pj_mutex_destroy(call->med_ch_mutex);
1321
call->med_ch_mutex = NULL;
1324
if (status != PJ_SUCCESS) {
1325
if (call->med_ch_info.status == PJ_SUCCESS) {
1326
call->med_ch_info.status = status;
1327
call->med_ch_info.sip_err_code = PJSIP_SC_TEMPORARILY_UNAVAILABLE;
1329
pjsua_media_prov_clean_up(call_id);
1333
/* Tell the media transport of a new offer/answer session */
1334
for (mi=0; mi < call->med_prov_cnt; ++mi) {
1335
pjsua_call_media *call_med = &call->media_prov[mi];
1337
/* Note: tp may be NULL if this media line is disabled */
1338
if (call_med->tp && call_med->tp_st == PJSUA_MED_TP_IDLE) {
1339
pj_pool_t *tmp_pool = call->async_call.pool_prov;
1342
tmp_pool = (call->inv? call->inv->pool_prov:
1343
call->async_call.dlg->pool);
1346
if (call_med->use_custom_med_tp) {
1347
unsigned custom_med_tp_flags = 0;
1349
/* Use custom media transport returned by the application */
1351
(*pjsua_var.ua_cfg.cb.on_create_media_transport)
1352
(call_id, mi, call_med->tp,
1353
custom_med_tp_flags);
1354
if (!call_med->tp) {
1356
PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_TEMPORARILY_UNAVAILABLE);
1361
status = pjmedia_transport_media_create(
1362
call_med->tp, tmp_pool,
1363
0, call->async_call.rem_sdp, mi);
1365
if (status != PJ_SUCCESS) {
1366
call->med_ch_info.status = status;
1367
call->med_ch_info.med_idx = mi;
1368
call->med_ch_info.state = call_med->tp_st;
1369
call->med_ch_info.sip_err_code = PJSIP_SC_TEMPORARILY_UNAVAILABLE;
1370
pjsua_media_prov_clean_up(call_id);
1374
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_INIT);
1378
call->med_ch_info.status = PJ_SUCCESS;
1381
if (call->med_ch_cb)
1382
(*call->med_ch_cb)(call->index, &call->med_ch_info);
1388
/* Clean up media transports in provisional media that is not used
1391
void pjsua_media_prov_clean_up(pjsua_call_id call_id)
1393
pjsua_call *call = &pjsua_var.calls[call_id];
1396
for (i = 0; i < call->med_prov_cnt; ++i) {
1397
pjsua_call_media *call_med = &call->media_prov[i];
1399
pj_bool_t used = PJ_FALSE;
1401
if (call_med->tp == NULL)
1404
for (j = 0; j < call->med_cnt; ++j) {
1405
if (call->media[j].tp == call_med->tp) {
1412
if (call_med->tp_st > PJSUA_MED_TP_IDLE) {
1413
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE);
1414
pjmedia_transport_media_stop(call_med->tp);
1416
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL);
1417
pjmedia_transport_close(call_med->tp);
1418
call_med->tp = call_med->tp_orig = NULL;
1424
pj_status_t pjsua_media_channel_init(pjsua_call_id call_id,
1427
pj_pool_t *tmp_pool,
1428
const pjmedia_sdp_session *rem_sdp,
1431
pjsua_med_tp_state_cb cb)
1433
const pj_str_t STR_AUDIO = { "audio", 5 };
1434
const pj_str_t STR_VIDEO = { "video", 5 };
1435
pjsua_call *call = &pjsua_var.calls[call_id];
1436
pjsua_acc *acc = &pjsua_var.acc[call->acc_id];
1437
pj_uint8_t maudidx[PJSUA_MAX_CALL_MEDIA];
1438
unsigned maudcnt = PJ_ARRAY_SIZE(maudidx);
1439
unsigned mtotaudcnt = PJ_ARRAY_SIZE(maudidx);
1440
pj_uint8_t mvididx[PJSUA_MAX_CALL_MEDIA];
1441
unsigned mvidcnt = PJ_ARRAY_SIZE(mvididx);
1442
unsigned mtotvidcnt = PJ_ARRAY_SIZE(mvididx);
1444
pj_bool_t pending_med_tp = PJ_FALSE;
1445
pj_bool_t reinit = PJ_FALSE;
1448
PJ_UNUSED_ARG(role);
1451
* Note: this function may be called when the media already exists
1452
* (e.g. in reinvites, updates, etc).
1455
if (pjsua_get_state() != PJSUA_STATE_RUNNING)
1459
pj_pool_t *tmppool = (call->inv? call->inv->pool_prov:
1460
call->async_call.dlg->pool);
1462
status = pj_mutex_create_simple(tmppool, NULL, &call->med_ch_mutex);
1463
if (status != PJ_SUCCESS)
1467
if (call->inv && call->inv->state == PJSIP_INV_STATE_CONFIRMED)
1470
PJ_LOG(4,(THIS_FILE, "Call %d: %sinitializing media..",
1471
call_id, (reinit?"re-":"") ));
1473
pj_log_push_indent();
1475
/* Init provisional media state */
1476
if (call->med_cnt == 0) {
1477
/* New media session, just copy whole from call media state. */
1478
pj_memcpy(call->media_prov, call->media, sizeof(call->media));
1480
/* Clean up any unused transports. Note that when local SDP reoffer
1481
* is rejected by remote, there may be any initialized transports that
1482
* are not used by call media and currently there is no notification
1483
* from PJSIP level regarding the reoffer rejection.
1485
pjsua_media_prov_clean_up(call_id);
1487
/* Updating media session, copy from call media state. */
1488
pj_memcpy(call->media_prov, call->media,
1489
sizeof(call->media[0]) * call->med_cnt);
1491
call->med_prov_cnt = call->med_cnt;
1493
#if DISABLED_FOR_TICKET_1185
1494
/* Return error if media transport has not been created yet
1495
* (e.g. application is starting)
1497
for (i=0; i<call->med_cnt; ++i) {
1498
if (call->media[i].tp == NULL) {
1505
/* Get media count for each media type */
1507
sort_media(rem_sdp, &STR_AUDIO, acc->cfg.use_srtp,
1508
maudidx, &maudcnt, &mtotaudcnt);
1510
/* Expecting audio in the offer */
1511
if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE_HERE;
1512
status = PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_NOT_ACCEPTABLE_HERE);
1516
#if PJMEDIA_HAS_VIDEO
1517
sort_media(rem_sdp, &STR_VIDEO, acc->cfg.use_srtp,
1518
mvididx, &mvidcnt, &mtotvidcnt);
1520
mvidcnt = mtotvidcnt = 0;
1521
PJ_UNUSED_ARG(STR_VIDEO);
1524
/* Update media count only when remote add any media, this media count
1525
* must never decrease. Also note that we shouldn't apply the media
1526
* count setting (of the call setting) before the SDP negotiation.
1528
if (call->med_prov_cnt < rem_sdp->media_count)
1529
call->med_prov_cnt = PJ_MIN(rem_sdp->media_count,
1530
PJSUA_MAX_CALL_MEDIA);
1532
call->rem_offerer = PJ_TRUE;
1533
call->rem_aud_cnt = maudcnt;
1534
call->rem_vid_cnt = mvidcnt;
1538
/* If call already established, calculate media count from current
1539
* local active SDP and call setting. Otherwise, calculate media
1540
* count from the call setting only.
1543
const pjmedia_sdp_session *sdp;
1545
status = pjmedia_sdp_neg_get_active_local(call->inv->neg, &sdp);
1546
pj_assert(status == PJ_SUCCESS);
1548
sort_media(sdp, &STR_AUDIO, acc->cfg.use_srtp,
1549
maudidx, &maudcnt, &mtotaudcnt);
1550
pj_assert(maudcnt > 0);
1552
sort_media(sdp, &STR_VIDEO, acc->cfg.use_srtp,
1553
mvididx, &mvidcnt, &mtotvidcnt);
1555
/* Call setting may add or remove media. Adding media is done by
1556
* enabling any disabled/port-zeroed media first, then adding new
1557
* media whenever needed. Removing media is done by disabling
1558
* media with the lowest 'quality'.
1561
/* Check if we need to add new audio */
1562
if (maudcnt < call->opt.aud_cnt &&
1563
mtotaudcnt < call->opt.aud_cnt)
1565
for (mi = 0; mi < call->opt.aud_cnt - mtotaudcnt; ++mi)
1566
maudidx[maudcnt++] = (pj_uint8_t)call->med_prov_cnt++;
1568
mtotaudcnt = call->opt.aud_cnt;
1570
maudcnt = call->opt.aud_cnt;
1572
/* Check if we need to add new video */
1573
if (mvidcnt < call->opt.vid_cnt &&
1574
mtotvidcnt < call->opt.vid_cnt)
1576
for (mi = 0; mi < call->opt.vid_cnt - mtotvidcnt; ++mi)
1577
mvididx[mvidcnt++] = (pj_uint8_t)call->med_prov_cnt++;
1579
mtotvidcnt = call->opt.vid_cnt;
1581
mvidcnt = call->opt.vid_cnt;
1585
maudcnt = mtotaudcnt = call->opt.aud_cnt;
1586
for (mi=0; mi<maudcnt; ++mi) {
1587
maudidx[mi] = (pj_uint8_t)mi;
1589
mvidcnt = mtotvidcnt = call->opt.vid_cnt;
1590
for (mi=0; mi<mvidcnt; ++mi) {
1591
mvididx[mi] = (pj_uint8_t)(maudcnt + mi);
1593
call->med_prov_cnt = maudcnt + mvidcnt;
1595
/* Need to publish supported media? */
1596
if (call->opt.flag & PJSUA_CALL_INCLUDE_DISABLED_MEDIA) {
1597
if (mtotaudcnt == 0) {
1599
maudidx[0] = (pj_uint8_t)call->med_prov_cnt++;
1601
#if PJMEDIA_HAS_VIDEO
1602
if (mtotvidcnt == 0) {
1604
mvididx[0] = (pj_uint8_t)call->med_prov_cnt++;
1610
call->rem_offerer = PJ_FALSE;
1613
if (call->med_prov_cnt == 0) {
1614
/* Expecting at least one media */
1615
if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE_HERE;
1616
status = PJSIP_ERRNO_FROM_SIP_STATUS(PJSIP_SC_NOT_ACCEPTABLE_HERE);
1621
call->med_ch_cb = cb;
1625
call->async_call.rem_sdp =
1626
pjmedia_sdp_session_clone(call->inv->pool_prov, rem_sdp);
1628
call->async_call.rem_sdp = NULL;
1631
call->async_call.pool_prov = tmp_pool;
1633
/* Initialize each media line */
1634
for (mi=0; mi < call->med_prov_cnt; ++mi) {
1635
pjsua_call_media *call_med = &call->media_prov[mi];
1636
pj_bool_t enabled = PJ_FALSE;
1637
pjmedia_type media_type = PJMEDIA_TYPE_UNKNOWN;
1639
if (pj_memchr(maudidx, mi, mtotaudcnt * sizeof(maudidx[0]))) {
1640
media_type = PJMEDIA_TYPE_AUDIO;
1641
if (call->opt.aud_cnt &&
1642
pj_memchr(maudidx, mi, maudcnt * sizeof(maudidx[0])))
1646
} else if (pj_memchr(mvididx, mi, mtotvidcnt * sizeof(mvididx[0]))) {
1647
media_type = PJMEDIA_TYPE_VIDEO;
1648
if (call->opt.vid_cnt &&
1649
pj_memchr(mvididx, mi, mvidcnt * sizeof(mvididx[0])))
1656
status = pjsua_call_media_init(call_med, media_type,
1658
security_level, sip_err_code,
1660
(async? &media_channel_init_cb:
1662
if (status == PJ_EPENDING) {
1663
pending_med_tp = PJ_TRUE;
1664
} else if (status != PJ_SUCCESS) {
1665
if (pending_med_tp) {
1666
/* Save failure information. */
1667
call_med->tp_ready = status;
1668
pj_bzero(&call->med_ch_info, sizeof(call->med_ch_info));
1669
call->med_ch_info.status = status;
1670
call->med_ch_info.state = call_med->tp_st;
1671
call->med_ch_info.med_idx = call_med->idx;
1673
call->med_ch_info.sip_err_code = *sip_err_code;
1675
/* We will return failure in the callback later. */
1679
pjsua_media_prov_clean_up(call_id);
1683
/* By convention, the media is disabled if transport is NULL
1684
* or transport state is PJSUA_MED_TP_DISABLED.
1687
// Don't close transport here, as SDP negotiation has not been
1688
// done and stream may be still active. Once SDP negotiation
1689
// is done (channel_update() invoked), this transport will be
1691
//pjmedia_transport_close(call_med->tp);
1692
//call_med->tp = NULL;
1693
pj_assert(call_med->tp_st == PJSUA_MED_TP_INIT ||
1694
call_med->tp_st == PJSUA_MED_TP_RUNNING);
1695
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_DISABLED);
1698
/* Put media type just for info */
1699
call_med->type = media_type;
1703
call->audio_idx = maudidx[0];
1705
PJ_LOG(4,(THIS_FILE, "Media index %d selected for audio call %d",
1706
call->audio_idx, call->index));
1708
if (pending_med_tp) {
1709
/* We shouldn't use temporary pool anymore. */
1710
call->async_call.pool_prov = NULL;
1711
/* We have a pending media transport initialization. */
1712
pj_log_pop_indent();
1716
/* Media transport initialization completed immediately, so
1717
* we don't need to call the callback.
1719
call->med_ch_cb = NULL;
1721
status = media_channel_init_cb(call_id, NULL);
1722
if (status != PJ_SUCCESS && sip_err_code)
1723
*sip_err_code = call->med_ch_info.sip_err_code;
1725
pj_log_pop_indent();
1729
if (call->med_ch_mutex) {
1730
pj_mutex_destroy(call->med_ch_mutex);
1731
call->med_ch_mutex = NULL;
1734
pj_log_pop_indent();
1739
/* Create SDP based on the current media channel. Note that, this function
1740
* will not modify the media channel, so when receiving new offer or
1741
* updating media count (via call setting), media channel must be reinit'd
1742
* (using pjsua_media_channel_init()) first before calling this function.
1744
pj_status_t pjsua_media_channel_create_sdp(pjsua_call_id call_id,
1746
const pjmedia_sdp_session *rem_sdp,
1747
pjmedia_sdp_session **p_sdp,
1750
enum { MAX_MEDIA = PJSUA_MAX_CALL_MEDIA };
1751
pjmedia_sdp_session *sdp;
1753
pjsua_call *call = &pjsua_var.calls[call_id];
1754
pjmedia_sdp_neg_state sdp_neg_state = PJMEDIA_SDP_NEG_STATE_NULL;
1756
unsigned tot_bandw_tias = 0;
1759
if (pjsua_get_state() != PJSUA_STATE_RUNNING)
1763
// This function should not really change the media channel.
1765
/* If this is a re-offer, let's re-initialize media as remote may
1766
* add or remove media
1768
if (call->inv && call->inv->state == PJSIP_INV_STATE_CONFIRMED) {
1769
status = pjsua_media_channel_init(call_id, PJSIP_ROLE_UAS,
1770
call->secure_level, pool,
1771
rem_sdp, sip_err_code,
1773
if (status != PJ_SUCCESS)
1777
/* Audio is first in our offer, by convention */
1778
// The audio_idx should not be changed here, as this function may be
1779
// called in generating re-offer and the current active audio index
1781
//call->audio_idx = 0;
1786
// Since r3512, old-style hold should have got transport, created by
1787
// pjsua_media_channel_init() in initial offer/answer or remote reoffer.
1788
/* Create media if it's not created. This could happen when call is
1789
* currently on-hold (with the old style hold)
1791
if (call->media[call->audio_idx].tp == NULL) {
1793
role = (rem_sdp ? PJSIP_ROLE_UAS : PJSIP_ROLE_UAC);
1794
status = pjsua_media_channel_init(call_id, role, call->secure_level,
1795
pool, rem_sdp, sip_err_code);
1796
if (status != PJ_SUCCESS)
1801
/* Get SDP negotiator state */
1802
if (call->inv && call->inv->neg)
1803
sdp_neg_state = pjmedia_sdp_neg_get_state(call->inv->neg);
1805
/* Get one address to use in the origin field */
1806
pj_bzero(&origin, sizeof(origin));
1807
for (mi=0; mi<call->med_prov_cnt; ++mi) {
1808
pjmedia_transport_info tpinfo;
1810
if (call->media_prov[mi].tp == NULL)
1813
pjmedia_transport_info_init(&tpinfo);
1814
pjmedia_transport_get_info(call->media_prov[mi].tp, &tpinfo);
1815
pj_sockaddr_cp(&origin, &tpinfo.sock_info.rtp_addr_name);
1819
/* Create the base (blank) SDP */
1820
status = pjmedia_endpt_create_base_sdp(pjsua_var.med_endpt, pool, NULL,
1822
if (status != PJ_SUCCESS)
1825
/* Process each media line */
1826
for (mi=0; mi<call->med_prov_cnt; ++mi) {
1827
pjsua_call_media *call_med = &call->media_prov[mi];
1828
pjmedia_sdp_media *m = NULL;
1829
pjmedia_transport_info tpinfo;
1832
if (rem_sdp && mi >= rem_sdp->media_count) {
1833
/* Remote might have removed some media lines. */
1837
if (call_med->tp == NULL || call_med->tp_st == PJSUA_MED_TP_DISABLED)
1840
* This media is disabled. Just create a valid SDP with zero
1844
/* Just clone the remote media and deactivate it */
1845
m = pjmedia_sdp_media_clone_deactivate(pool,
1846
rem_sdp->media[mi]);
1848
m = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_media);
1849
m->desc.transport = pj_str("RTP/AVP");
1850
m->desc.fmt_count = 1;
1851
m->conn = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_conn);
1852
m->conn->net_type = pj_str("IN");
1853
m->conn->addr_type = pj_str("IP4");
1854
m->conn->addr = pj_str("127.0.0.1");
1856
switch (call_med->type) {
1857
case PJMEDIA_TYPE_AUDIO:
1858
m->desc.media = pj_str("audio");
1859
m->desc.fmt[0] = pj_str("0");
1861
case PJMEDIA_TYPE_VIDEO:
1862
m->desc.media = pj_str("video");
1863
m->desc.fmt[0] = pj_str("31");
1866
/* This must be us generating re-offer, and some unknown
1867
* media may exist, so just clone from active local SDP
1868
* (and it should have been deactivated already).
1870
pj_assert(call->inv && call->inv->neg &&
1871
sdp_neg_state == PJMEDIA_SDP_NEG_STATE_DONE);
1873
const pjmedia_sdp_session *s_;
1874
pjmedia_sdp_neg_get_active_local(call->inv->neg, &s_);
1876
pj_assert(mi < s_->media_count);
1877
m = pjmedia_sdp_media_clone(pool, s_->media[mi]);
1884
sdp->media[sdp->media_count++] = m;
1888
/* Get transport address info */
1889
pjmedia_transport_info_init(&tpinfo);
1890
pjmedia_transport_get_info(call_med->tp, &tpinfo);
1892
/* Ask pjmedia endpoint to create SDP media line */
1893
switch (call_med->type) {
1894
case PJMEDIA_TYPE_AUDIO:
1895
status = pjmedia_endpt_create_audio_sdp(pjsua_var.med_endpt, pool,
1896
&tpinfo.sock_info, 0, &m);
1898
#if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0)
1899
case PJMEDIA_TYPE_VIDEO:
1900
status = pjmedia_endpt_create_video_sdp(pjsua_var.med_endpt, pool,
1901
&tpinfo.sock_info, 0, &m);
1905
pj_assert(!"Invalid call_med media type");
1909
if (status != PJ_SUCCESS)
1912
sdp->media[sdp->media_count++] = m;
1914
/* Give to transport */
1915
status = pjmedia_transport_encode_sdp(call_med->tp, pool,
1917
if (status != PJ_SUCCESS) {
1918
if (sip_err_code) *sip_err_code = PJSIP_SC_NOT_ACCEPTABLE;
1922
/* Copy c= line of the first media to session level,
1925
if (sdp->conn == NULL) {
1926
sdp->conn = pjmedia_sdp_conn_clone(pool, m->conn);
1930
/* Find media bandwidth info */
1931
for (i = 0; i < m->bandw_count; ++i) {
1932
const pj_str_t STR_BANDW_MODIFIER_TIAS = { "TIAS", 4 };
1933
if (!pj_stricmp(&m->bandw[i]->modifier, &STR_BANDW_MODIFIER_TIAS))
1935
tot_bandw_tias += m->bandw[i]->value;
1941
/* Add NAT info in the SDP */
1942
if (pjsua_var.ua_cfg.nat_type_in_sdp) {
1943
pjmedia_sdp_attr *a;
1947
value.ptr = nat_info;
1948
if (pjsua_var.ua_cfg.nat_type_in_sdp == 1) {
1949
value.slen = pj_ansi_snprintf(nat_info, sizeof(nat_info),
1950
"%d", pjsua_var.nat_type);
1952
const char *type_name = pj_stun_get_nat_name(pjsua_var.nat_type);
1953
value.slen = pj_ansi_snprintf(nat_info, sizeof(nat_info),
1959
a = pjmedia_sdp_attr_create(pool, "X-nat", &value);
1961
pjmedia_sdp_attr_add(&sdp->attr_count, sdp->attr, a);
1966
/* Add bandwidth info in session level using bandwidth modifier "AS". */
1967
if (tot_bandw_tias) {
1969
const pj_str_t STR_BANDW_MODIFIER_AS = { "AS", 2 };
1970
pjmedia_sdp_bandw *b;
1972
/* AS bandwidth = RTP bitrate + RTCP bitrate.
1973
* RTP bitrate = payload bitrate (total TIAS) + overheads (~16kbps).
1974
* RTCP bitrate = est. 5% of RTP bitrate.
1975
* Note that AS bandwidth is in kbps.
1977
bandw = tot_bandw_tias + 16000;
1978
bandw += bandw * 5 / 100;
1979
b = PJ_POOL_ALLOC_T(pool, pjmedia_sdp_bandw);
1980
b->modifier = STR_BANDW_MODIFIER_AS;
1981
b->value = bandw / 1000;
1982
sdp->bandw[sdp->bandw_count++] = b;
1986
#if DISABLED_FOR_TICKET_1185 && defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0)
1987
/* Check if SRTP is in optional mode and configured to use duplicated
1988
* media, i.e: secured and unsecured version, in the SDP offer.
1991
pjsua_var.acc[call->acc_id].cfg.use_srtp == PJMEDIA_SRTP_OPTIONAL &&
1992
pjsua_var.acc[call->acc_id].cfg.srtp_optional_dup_offer)
1996
for (i = 0; i < sdp->media_count; ++i) {
1997
pjmedia_sdp_media *m = sdp->media[i];
1999
/* Check if this media is unsecured but has SDP "crypto"
2002
if (pj_stricmp2(&m->desc.transport, "RTP/AVP") == 0 &&
2003
pjmedia_sdp_media_find_attr2(m, "crypto", NULL) != NULL)
2005
if (i == (unsigned)call->audio_idx &&
2006
sdp_neg_state == PJMEDIA_SDP_NEG_STATE_DONE)
2008
/* This is a session update, and peer has chosen the
2009
* unsecured version, so let's make this unsecured too.
2011
pjmedia_sdp_media_remove_all_attr(m, "crypto");
2013
/* This is new offer, duplicate media so we'll have
2014
* secured (with "RTP/SAVP" transport) and and unsecured
2017
pjmedia_sdp_media *new_m;
2019
/* Duplicate this media and apply secured transport */
2020
new_m = pjmedia_sdp_media_clone(pool, m);
2021
pj_strdup2(pool, &new_m->desc.transport, "RTP/SAVP");
2023
/* Remove the "crypto" attribute in the unsecured media */
2024
pjmedia_sdp_media_remove_all_attr(m, "crypto");
2026
/* Insert the new media before the unsecured media */
2027
if (sdp->media_count < PJMEDIA_MAX_SDP_MEDIA) {
2028
pj_array_insert(sdp->media, sizeof(new_m),
2029
sdp->media_count, i, &new_m);
2039
call->rem_offerer = (rem_sdp != NULL);
2041
/* Notify application */
2042
if (pjsua_var.ua_cfg.cb.on_call_sdp_created) {
2043
(*pjsua_var.ua_cfg.cb.on_call_sdp_created)(call_id, sdp,
2052
static void stop_media_session(pjsua_call_id call_id)
2054
pjsua_call *call = &pjsua_var.calls[call_id];
2057
pj_log_push_indent();
2059
for (mi=0; mi<call->med_cnt; ++mi) {
2060
pjsua_call_media *call_med = &call->media[mi];
2062
if (call_med->type == PJMEDIA_TYPE_AUDIO) {
2063
pjsua_aud_stop_stream(call_med);
2066
#if PJMEDIA_HAS_VIDEO
2067
else if (call_med->type == PJMEDIA_TYPE_VIDEO) {
2068
pjsua_vid_stop_stream(call_med);
2072
PJ_LOG(4,(THIS_FILE, "Media session call%02d:%d is destroyed",
2074
call_med->prev_state = call_med->state;
2075
call_med->state = PJSUA_CALL_MEDIA_NONE;
2077
/* Try to sync recent changes to provisional media */
2078
if (mi<call->med_prov_cnt && call->media_prov[mi].tp==call_med->tp)
2080
pjsua_call_media *prov_med = &call->media_prov[mi];
2083
prov_med->prev_state = call_med->prev_state;
2084
prov_med->state = call_med->state;
2087
prov_med->rtp_tx_seq_ts_set = call_med->rtp_tx_seq_ts_set;
2088
prov_med->rtp_tx_seq = call_med->rtp_tx_seq;
2089
prov_med->rtp_tx_ts = call_med->rtp_tx_ts;
2092
if (call_med->type == PJMEDIA_TYPE_AUDIO) {
2093
prov_med->strm.a.conf_slot = call_med->strm.a.conf_slot;
2094
prov_med->strm.a.stream = call_med->strm.a.stream;
2096
#if PJMEDIA_HAS_VIDEO
2097
else if (call_med->type == PJMEDIA_TYPE_VIDEO) {
2098
prov_med->strm.v.cap_win_id = call_med->strm.v.cap_win_id;
2099
prov_med->strm.v.rdr_win_id = call_med->strm.v.rdr_win_id;
2100
prov_med->strm.v.stream = call_med->strm.v.stream;
2106
pj_log_pop_indent();
2109
pj_status_t pjsua_media_channel_deinit(pjsua_call_id call_id)
2111
pjsua_call *call = &pjsua_var.calls[call_id];
2114
for (mi=0; mi<call->med_cnt; ++mi) {
2115
pjsua_call_media *call_med = &call->media[mi];
2117
if (call_med->tp_st == PJSUA_MED_TP_CREATING) {
2118
/* We will do the deinitialization after media transport
2119
* creation is completed.
2121
call->async_call.med_ch_deinit = PJ_TRUE;
2126
PJ_LOG(4,(THIS_FILE, "Call %d: deinitializing media..", call_id));
2127
pj_log_push_indent();
2129
stop_media_session(call_id);
2131
/* Clean up media transports */
2132
pjsua_media_prov_clean_up(call_id);
2133
call->med_prov_cnt = 0;
2134
for (mi=0; mi<call->med_cnt; ++mi) {
2135
pjsua_call_media *call_med = &call->media[mi];
2137
if (call_med->tp_st > PJSUA_MED_TP_IDLE) {
2138
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_IDLE);
2139
pjmedia_transport_media_stop(call_med->tp);
2143
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL);
2144
pjmedia_transport_close(call_med->tp);
2145
call_med->tp = call_med->tp_orig = NULL;
2147
call_med->tp_orig = NULL;
2150
pj_log_pop_indent();
2156
pj_status_t pjsua_media_channel_update(pjsua_call_id call_id,
2157
const pjmedia_sdp_session *local_sdp,
2158
const pjmedia_sdp_session *remote_sdp)
2160
pjsua_call *call = &pjsua_var.calls[call_id];
2161
pjsua_acc *acc = &pjsua_var.acc[call->acc_id];
2162
pj_pool_t *tmp_pool = call->inv->pool_prov;
2164
pj_bool_t got_media = PJ_FALSE;
2165
pj_status_t status = PJ_SUCCESS;
2167
const pj_str_t STR_AUDIO = { "audio", 5 };
2168
const pj_str_t STR_VIDEO = { "video", 5 };
2169
pj_uint8_t maudidx[PJSUA_MAX_CALL_MEDIA];
2170
unsigned maudcnt = PJ_ARRAY_SIZE(maudidx);
2171
unsigned mtotaudcnt = PJ_ARRAY_SIZE(maudidx);
2172
pj_uint8_t mvididx[PJSUA_MAX_CALL_MEDIA];
2173
unsigned mvidcnt = PJ_ARRAY_SIZE(mvididx);
2174
unsigned mtotvidcnt = PJ_ARRAY_SIZE(mvididx);
2175
pj_bool_t need_renego_sdp = PJ_FALSE;
2177
if (pjsua_get_state() != PJSUA_STATE_RUNNING)
2180
PJ_LOG(4,(THIS_FILE, "Call %d: updating media..", call_id));
2181
pj_log_push_indent();
2183
/* Destroy existing media session, if any. */
2184
stop_media_session(call->index);
2186
/* Call media count must be at least equal to SDP media. Note that
2187
* it may not be equal when remote removed any SDP media line.
2189
pj_assert(call->med_prov_cnt >= local_sdp->media_count);
2191
/* Reset audio_idx first */
2192
call->audio_idx = -1;
2194
/* Sort audio/video based on "quality" */
2195
sort_media(local_sdp, &STR_AUDIO, acc->cfg.use_srtp,
2196
maudidx, &maudcnt, &mtotaudcnt);
2197
#if PJMEDIA_HAS_VIDEO
2198
sort_media(local_sdp, &STR_VIDEO, acc->cfg.use_srtp,
2199
mvididx, &mvidcnt, &mtotvidcnt);
2201
PJ_UNUSED_ARG(STR_VIDEO);
2202
mvidcnt = mtotvidcnt = 0;
2205
/* Applying media count limitation. Note that in generating SDP answer,
2206
* no media count limitation applied, as we didn't know yet which media
2207
* would pass the SDP negotiation.
2209
if (maudcnt > call->opt.aud_cnt || mvidcnt > call->opt.vid_cnt)
2211
pjmedia_sdp_session *local_sdp2;
2213
maudcnt = PJ_MIN(maudcnt, call->opt.aud_cnt);
2214
mvidcnt = PJ_MIN(mvidcnt, call->opt.vid_cnt);
2215
local_sdp2 = pjmedia_sdp_session_clone(tmp_pool, local_sdp);
2217
for (mi=0; mi < local_sdp2->media_count; ++mi) {
2218
pjmedia_sdp_media *m = local_sdp2->media[mi];
2220
if (m->desc.port == 0 ||
2221
pj_memchr(maudidx, mi, maudcnt*sizeof(maudidx[0])) ||
2222
pj_memchr(mvididx, mi, mvidcnt*sizeof(mvididx[0])))
2227
/* Deactivate this media */
2228
pjmedia_sdp_media_deactivate(tmp_pool, m);
2231
local_sdp = local_sdp2;
2232
need_renego_sdp = PJ_TRUE;
2235
/* Process each media stream */
2236
for (mi=0; mi < call->med_prov_cnt; ++mi) {
2237
pjsua_call_media *call_med = &call->media_prov[mi];
2239
if (mi >= local_sdp->media_count ||
2240
mi >= remote_sdp->media_count)
2242
/* This may happen when remote removed any SDP media lines in
2246
/* Close the media transport */
2247
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL);
2248
pjmedia_transport_close(call_med->tp);
2249
call_med->tp = call_med->tp_orig = NULL;
2253
/* Something is wrong */
2254
PJ_LOG(1,(THIS_FILE, "Error updating media for call %d: "
2255
"invalid media index %d in SDP", call_id, mi));
2256
status = PJMEDIA_SDP_EINSDP;
2261
if (call_med->type==PJMEDIA_TYPE_AUDIO) {
2262
pjmedia_stream_info the_si, *si = &the_si;
2264
status = pjmedia_stream_info_from_sdp(si, tmp_pool, pjsua_var.med_endpt,
2265
local_sdp, remote_sdp, mi);
2266
if (status != PJ_SUCCESS) {
2267
PJ_PERROR(1,(THIS_FILE, status,
2268
"pjmedia_stream_info_from_sdp() failed "
2269
"for call_id %d media %d",
2274
/* Check if no media is active */
2275
if (si->dir == PJMEDIA_DIR_NONE) {
2276
/* Update call media state and direction */
2277
call_med->state = PJSUA_CALL_MEDIA_NONE;
2278
call_med->dir = PJMEDIA_DIR_NONE;
2281
pjmedia_transport_info tp_info;
2283
/* Start/restart media transport based on info in SDP */
2284
status = pjmedia_transport_media_start(call_med->tp,
2285
tmp_pool, local_sdp,
2287
if (status != PJ_SUCCESS) {
2288
PJ_PERROR(1,(THIS_FILE, status,
2289
"pjmedia_transport_media_start() failed "
2290
"for call_id %d media %d",
2295
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_RUNNING);
2297
/* Get remote SRTP usage policy */
2298
pjmedia_transport_info_init(&tp_info);
2299
pjmedia_transport_get_info(call_med->tp, &tp_info);
2300
if (tp_info.specific_info_cnt > 0) {
2302
for (i = 0; i < tp_info.specific_info_cnt; ++i) {
2303
if (tp_info.spc_info[i].type == PJMEDIA_TRANSPORT_TYPE_SRTP)
2305
pjmedia_srtp_info *srtp_info =
2306
(pjmedia_srtp_info*) tp_info.spc_info[i].buffer;
2308
call_med->rem_srtp_use = srtp_info->peer_use;
2314
/* Call media direction */
2315
call_med->dir = si->dir;
2317
/* Call media state */
2318
if (call->local_hold)
2319
call_med->state = PJSUA_CALL_MEDIA_LOCAL_HOLD;
2320
else if (call_med->dir == PJMEDIA_DIR_DECODING)
2321
call_med->state = PJSUA_CALL_MEDIA_REMOTE_HOLD;
2323
call_med->state = PJSUA_CALL_MEDIA_ACTIVE;
2326
/* Call implementation */
2327
status = pjsua_aud_channel_update(call_med, tmp_pool, si,
2328
local_sdp, remote_sdp);
2329
if (status != PJ_SUCCESS) {
2330
PJ_PERROR(1,(THIS_FILE, status,
2331
"pjsua_aud_channel_update() failed "
2332
"for call_id %d media %d",
2338
if (status == PJ_SUCCESS) {
2345
case PJMEDIA_DIR_NONE:
2348
case PJMEDIA_DIR_ENCODING:
2351
case PJMEDIA_DIR_DECODING:
2354
case PJMEDIA_DIR_ENCODING_DECODING:
2361
len = pj_ansi_sprintf( info+info_len,
2362
", stream #%d: %.*s (%s)", mi,
2363
(int)si->fmt.encoding_name.slen,
2364
si->fmt.encoding_name.ptr,
2368
PJ_LOG(4,(THIS_FILE,"Audio updated%s", info));
2372
if (call->audio_idx==-1 && status==PJ_SUCCESS &&
2373
si->dir != PJMEDIA_DIR_NONE)
2375
call->audio_idx = mi;
2378
#if defined(PJMEDIA_HAS_VIDEO) && (PJMEDIA_HAS_VIDEO != 0)
2379
} else if (call_med->type==PJMEDIA_TYPE_VIDEO) {
2380
pjmedia_vid_stream_info the_si, *si = &the_si;
2382
status = pjmedia_vid_stream_info_from_sdp(si, tmp_pool, pjsua_var.med_endpt,
2383
local_sdp, remote_sdp, mi);
2384
if (status != PJ_SUCCESS) {
2385
PJ_PERROR(1,(THIS_FILE, status,
2386
"pjmedia_vid_stream_info_from_sdp() failed "
2387
"for call_id %d media %d",
2392
/* Check if no media is active */
2393
if (si->dir == PJMEDIA_DIR_NONE) {
2394
/* Update call media state and direction */
2395
call_med->state = PJSUA_CALL_MEDIA_NONE;
2396
call_med->dir = PJMEDIA_DIR_NONE;
2399
pjmedia_transport_info tp_info;
2401
/* Start/restart media transport */
2402
status = pjmedia_transport_media_start(call_med->tp,
2403
tmp_pool, local_sdp,
2405
if (status != PJ_SUCCESS) {
2406
PJ_PERROR(1,(THIS_FILE, status,
2407
"pjmedia_transport_media_start() failed "
2408
"for call_id %d media %d",
2413
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_RUNNING);
2415
/* Get remote SRTP usage policy */
2416
pjmedia_transport_info_init(&tp_info);
2417
pjmedia_transport_get_info(call_med->tp, &tp_info);
2418
if (tp_info.specific_info_cnt > 0) {
2420
for (i = 0; i < tp_info.specific_info_cnt; ++i) {
2421
if (tp_info.spc_info[i].type ==
2422
PJMEDIA_TRANSPORT_TYPE_SRTP)
2424
pjmedia_srtp_info *sri;
2425
sri=(pjmedia_srtp_info*)tp_info.spc_info[i].buffer;
2426
call_med->rem_srtp_use = sri->peer_use;
2432
/* Call media direction */
2433
call_med->dir = si->dir;
2435
/* Call media state */
2436
if (call->local_hold)
2437
call_med->state = PJSUA_CALL_MEDIA_LOCAL_HOLD;
2438
else if (call_med->dir == PJMEDIA_DIR_DECODING)
2439
call_med->state = PJSUA_CALL_MEDIA_REMOTE_HOLD;
2441
call_med->state = PJSUA_CALL_MEDIA_ACTIVE;
2444
status = pjsua_vid_channel_update(call_med, tmp_pool, si,
2445
local_sdp, remote_sdp);
2446
if (status != PJ_SUCCESS) {
2447
PJ_PERROR(1,(THIS_FILE, status,
2448
"pjsua_vid_channel_update() failed "
2449
"for call_id %d media %d",
2462
case PJMEDIA_DIR_NONE:
2465
case PJMEDIA_DIR_ENCODING:
2468
case PJMEDIA_DIR_DECODING:
2471
case PJMEDIA_DIR_ENCODING_DECODING:
2478
len = pj_ansi_sprintf( info+info_len,
2479
", stream #%d: %.*s (%s)", mi,
2480
(int)si->codec_info.encoding_name.slen,
2481
si->codec_info.encoding_name.ptr,
2485
PJ_LOG(4,(THIS_FILE,"Video updated%s", info));
2490
status = PJMEDIA_EINVALIMEDIATYPE;
2493
/* Close the transport of deactivated media, need this here as media
2494
* can be deactivated by the SDP negotiation and the max media count
2495
* (account) setting.
2497
if (local_sdp->media[mi]->desc.port==0 && call_med->tp) {
2498
pjsua_set_media_tp_state(call_med, PJSUA_MED_TP_NULL);
2499
pjmedia_transport_close(call_med->tp);
2500
call_med->tp = call_med->tp_orig = NULL;
2503
if (status != PJ_SUCCESS) {
2504
PJ_PERROR(1,(THIS_FILE, status, "Error updating media call%02d:%d",
2507
got_media = PJ_TRUE;
2511
/* Update call media from provisional media */
2512
call->med_cnt = call->med_prov_cnt;
2513
pj_memcpy(call->media, call->media_prov,
2514
sizeof(call->media_prov[0]) * call->med_prov_cnt);
2516
/* Perform SDP re-negotiation if needed. */
2517
if (got_media && need_renego_sdp) {
2518
pjmedia_sdp_neg *neg = call->inv->neg;
2520
/* This should only happen when we are the answerer. */
2521
PJ_ASSERT_RETURN(neg && !pjmedia_sdp_neg_was_answer_remote(neg),
2522
PJMEDIA_SDPNEG_EINSTATE);
2524
status = pjmedia_sdp_neg_set_remote_offer(tmp_pool, neg, remote_sdp);
2525
if (status != PJ_SUCCESS)
2528
status = pjmedia_sdp_neg_set_local_answer(tmp_pool, neg, local_sdp);
2529
if (status != PJ_SUCCESS)
2532
status = pjmedia_sdp_neg_negotiate(tmp_pool, neg, 0);
2533
if (status != PJ_SUCCESS)
2537
pj_log_pop_indent();
2538
return (got_media? PJ_SUCCESS : PJMEDIA_SDPNEG_ENOMEDIA);
2541
pj_log_pop_indent();
2545
/*****************************************************************************
2550
* Enum all supported codecs in the system.
2552
PJ_DEF(pj_status_t) pjsua_enum_codecs( pjsua_codec_info id[],
2555
pjmedia_codec_mgr *codec_mgr;
2556
pjmedia_codec_info info[32];
2557
unsigned i, count, prio[32];
2560
codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt);
2561
count = PJ_ARRAY_SIZE(info);
2562
status = pjmedia_codec_mgr_enum_codecs( codec_mgr, &count, info, prio);
2563
if (status != PJ_SUCCESS) {
2568
if (count > *p_count) count = *p_count;
2570
for (i=0; i<count; ++i) {
2571
pj_bzero(&id[i], sizeof(pjsua_codec_info));
2573
pjmedia_codec_info_to_id(&info[i], id[i].buf_, sizeof(id[i].buf_));
2574
id[i].codec_id = pj_str(id[i].buf_);
2575
id[i].priority = (pj_uint8_t) prio[i];
2585
* Change codec priority.
2587
PJ_DEF(pj_status_t) pjsua_codec_set_priority( const pj_str_t *codec_id,
2588
pj_uint8_t priority )
2590
const pj_str_t all = { NULL, 0 };
2591
pjmedia_codec_mgr *codec_mgr;
2593
codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt);
2595
if (codec_id->slen==1 && *codec_id->ptr=='*')
2598
return pjmedia_codec_mgr_set_codec_priority(codec_mgr, codec_id,
2604
* Get codec parameters.
2606
PJ_DEF(pj_status_t) pjsua_codec_get_param( const pj_str_t *codec_id,
2607
pjmedia_codec_param *param )
2609
const pj_str_t all = { NULL, 0 };
2610
const pjmedia_codec_info *info;
2611
pjmedia_codec_mgr *codec_mgr;
2615
codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt);
2617
if (codec_id->slen==1 && *codec_id->ptr=='*')
2620
status = pjmedia_codec_mgr_find_codecs_by_id(codec_mgr, codec_id,
2621
&count, &info, NULL);
2622
if (status != PJ_SUCCESS)
2626
return (count > 1? PJ_ETOOMANY : PJ_ENOTFOUND);
2628
status = pjmedia_codec_mgr_get_default_param( codec_mgr, info, param);
2634
* Set codec parameters.
2636
PJ_DEF(pj_status_t) pjsua_codec_set_param( const pj_str_t *codec_id,
2637
const pjmedia_codec_param *param)
2639
const pjmedia_codec_info *info[2];
2640
pjmedia_codec_mgr *codec_mgr;
2644
codec_mgr = pjmedia_endpt_get_codec_mgr(pjsua_var.med_endpt);
2646
status = pjmedia_codec_mgr_find_codecs_by_id(codec_mgr, codec_id,
2647
&count, info, NULL);
2648
if (status != PJ_SUCCESS)
2651
/* Codec ID should be specific, except for G.722.1 */
2653
pj_strnicmp2(codec_id, "G7221/16", 8) != 0 &&
2654
pj_strnicmp2(codec_id, "G7221/32", 8) != 0)
2656
pj_assert(!"Codec ID is not specific");
2660
status = pjmedia_codec_mgr_set_default_param(codec_mgr, info[0], param);
2665
pj_status_t pjsua_media_apply_xml_control(pjsua_call_id call_id,
2666
const pj_str_t *xml_st)
2668
#if PJMEDIA_HAS_VIDEO
2669
pjsua_call *call = &pjsua_var.calls[call_id];
2670
const pj_str_t PICT_FAST_UPDATE = {"picture_fast_update", 19};
2672
if (pj_strstr(xml_st, &PICT_FAST_UPDATE)) {
2675
PJ_LOG(4,(THIS_FILE, "Received keyframe request via SIP INFO"));
2677
for (i = 0; i < call->med_cnt; ++i) {
2678
pjsua_call_media *cm = &call->media[i];
2679
if (cm->type != PJMEDIA_TYPE_VIDEO || !cm->strm.v.stream)
2682
pjmedia_vid_stream_send_keyframe(cm->strm.v.stream);
2689
/* Just to avoid compiler warning of unused var */
2690
PJ_UNUSED_ARG(call_id);
2691
PJ_UNUSED_ARG(xml_st);
added
removed
daemon/libs/pjproject-2.0.1/pjsip/src/pjsua-lib/pjsua_media.c
