262 lines
6.8 KiB
C
262 lines
6.8 KiB
C
/*
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* Copyright (C) 2021 Aon plc
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*
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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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*
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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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*
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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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*/
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#include <unistd.h>
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#include <stdbool.h>
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#include <time.h>
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#include <stdio.h>
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#include <signal.h>
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#include <errno.h>
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#include <pjsua-lib/pjsua.h>
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#define SIGNATURE PJMEDIA_SIG_CLASS_PORT_AUD('D','M')
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struct dmodem {
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pjmedia_port base;
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pj_timestamp timestamp;
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pj_sock_t sock;
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};
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static struct dmodem port;
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static bool destroying = false;
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static pj_pool_t *pool;
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static void error_exit(const char *title, pj_status_t status) {
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pjsua_perror(__FILE__, title, status);
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if (!destroying) {
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destroying = true;
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pjsua_destroy();
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exit(1);
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}
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}
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static pj_status_t dmodem_put_frame(pjmedia_port *this_port, pjmedia_frame *frame) {
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struct dmodem *sm = (struct dmodem *)this_port;
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int len;
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if (frame->type == PJMEDIA_FRAME_TYPE_AUDIO) {
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if ((len=write(sm->sock, frame->buf, frame->size)) != frame->size) {
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error_exit("error writing frame",0);
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}
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}
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return PJ_SUCCESS;
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}
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static pj_status_t dmodem_get_frame(pjmedia_port *this_port, pjmedia_frame *frame) {
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struct dmodem *sm = (struct dmodem *)this_port;
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frame->size = PJMEDIA_PIA_AVG_FSZ(&this_port->info); // MAX? what is
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int len;
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if ((len=read(sm->sock, frame->buf, frame->size)) != frame->size) {
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error_exit("error reading frame",0);
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}
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frame->timestamp.u64 = sm->timestamp.u64;
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frame->type = PJMEDIA_FRAME_TYPE_AUDIO;
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sm->timestamp.u64 += PJMEDIA_PIA_SPF(&this_port->info);
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return PJ_SUCCESS;
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}
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static pj_status_t dmodem_on_destroy(pjmedia_port *this_port) {
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printf("destroy\n");
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exit(-1);
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}
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/* Callback called by the library when call's state has changed */
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static void on_call_state(pjsua_call_id call_id, pjsip_event *e) {
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pjsua_call_info ci;
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PJ_UNUSED_ARG(e);
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pjsua_call_get_info(call_id, &ci);
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PJ_LOG(3,(__FILE__, "Call %d state=%.*s", call_id,
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(int)ci.state_text.slen,
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ci.state_text.ptr));
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if (ci.state == PJSIP_INV_STATE_DISCONNECTED) {
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close(port.sock);
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if (!destroying) {
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destroying = true;
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pjsua_destroy();
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exit(0);
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}
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}
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}
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/* Callback called by the library when call's media state has changed */
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static void on_call_media_state(pjsua_call_id call_id) {
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pjsua_call_info ci;
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pjsua_conf_port_id port_id;
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static int done=0;
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pjsua_call_get_info(call_id, &ci);
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// printf("media_status %d media_cnt %d ci.conf_slot %d aud.conf_slot %d\n",ci.media_status,ci.media_cnt,ci.conf_slot,ci.media[0].stream.aud.conf_slot);
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if (ci.media_status == PJSUA_CALL_MEDIA_ACTIVE) {
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if (!done) {
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pjsua_conf_add_port(pool, &port.base, &port_id);
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pjsua_conf_connect(ci.conf_slot, port_id);
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pjsua_conf_connect(port_id, ci.conf_slot);
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done = 1;
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}
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} else {
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done = 0;
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}
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}
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int main(int argc, char *argv[]) {
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pjsua_acc_id acc_id;
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pj_status_t status;
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if (argc != 3) {
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return -1;
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}
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signal(SIGPIPE,SIG_IGN);
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char *dialstr = argv[1];
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char *sip_user = getenv("SIP_LOGIN");
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if (!sip_user) {
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return -1;
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}
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char *sip_domain = strchr(sip_user,'@');
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if (!sip_domain) {
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return -1;
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}
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*sip_domain++ = '\0';
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char *sip_pass = strchr(sip_user,':');
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if (!sip_pass) {
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return -1;
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}
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*sip_pass++ = '\0';
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status = pjsua_create();
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if (status != PJ_SUCCESS) error_exit("Error in pjsua_create()", status);
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/* Init pjsua */
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{
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pjsua_config cfg;
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pjsua_logging_config log_cfg;
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pjsua_media_config med_cfg;
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pjsua_config_default(&cfg);
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cfg.cb.on_call_media_state = &on_call_media_state;
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cfg.cb.on_call_state = &on_call_state;
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pjsua_logging_config_default(&log_cfg);
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log_cfg.console_level = 4;
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pjsua_media_config_default(&med_cfg);
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med_cfg.no_vad = true;
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med_cfg.ec_tail_len = 0;
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med_cfg.jb_max = 2000;
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// med_cfg.jb_init = 200;
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med_cfg.audio_frame_ptime = 5;
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status = pjsua_init(&cfg, &log_cfg, &med_cfg);
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if (status != PJ_SUCCESS) error_exit("Error in pjsua_init()", status);
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}
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pjsua_set_ec(0,0); // maybe?
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pjsua_set_null_snd_dev();
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/* g711 only */
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pjsua_codec_info codecs[32];
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unsigned count = sizeof(codecs)/sizeof(*codecs);
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pjsua_enum_codecs(codecs,&count);
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for (int i=0; i<count; i++) {
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int pri = 0;
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if (pj_strcmp2(&codecs[i].codec_id,"PCMU/8000/1") == 0) {
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pri = 1;
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} else if (pj_strcmp2(&codecs[i].codec_id,"PCMA/8000/1") == 0) {
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pri = 2;
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}
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pjsua_codec_set_priority(&codecs[i].codec_id, pri);
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// printf("codec: %s %d\n",pj_strbuf(&codecs[i].codec_id),pri);
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}
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/* Add UDP transport. */
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{
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pjsua_transport_config cfg;
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pjsua_transport_config_default(&cfg);
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cfg.port = 5060;
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status = pjsua_transport_create(PJSIP_TRANSPORT_UDP, &cfg, NULL);
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if (status != PJ_SUCCESS) error_exit("Error creating transport", status);
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}
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pj_caching_pool cp;
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pj_caching_pool_init(&cp, NULL, 1024*1024);
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pool = pj_pool_create(&cp.factory, "pool1", 4000, 4000, NULL);
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pj_str_t name = pj_str("dmodem");
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memset(&port,0,sizeof(port));
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port.sock = atoi(argv[2]); // inherited from parent
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pjmedia_port_info_init(&port.base.info, &name, SIGNATURE, 9600, 1, 16, 192);
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port.base.put_frame = dmodem_put_frame;
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port.base.get_frame = dmodem_get_frame;
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port.base.on_destroy = dmodem_on_destroy;
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char buf[384];
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memset(buf,0,sizeof(buf));
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write(port.sock, buf, sizeof(buf));
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/* Initialization is done, now start pjsua */
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status = pjsua_start();
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if (status != PJ_SUCCESS) error_exit("Error starting pjsua", status);
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{
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pjsua_acc_config cfg;
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pjsua_acc_config_default(&cfg);
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snprintf(buf,sizeof(buf),"sip:%s@%s",sip_user,sip_domain);
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pj_strdup2(pool,&cfg.id,buf);
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snprintf(buf,sizeof(buf),"sip:%s",sip_domain);
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pj_strdup2(pool,&cfg.reg_uri,buf);
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cfg.register_on_acc_add = false;
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cfg.cred_count = 1;
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cfg.cred_info[0].realm = pj_str("*");
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cfg.cred_info[0].scheme = pj_str("digest");
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cfg.cred_info[0].username = pj_str(sip_user);
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cfg.cred_info[0].data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;
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cfg.cred_info[0].data = pj_str(sip_pass);
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status = pjsua_acc_add(&cfg, PJ_TRUE, &acc_id);
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if (status != PJ_SUCCESS) error_exit("Error adding account", status);
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}
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snprintf(buf,sizeof(buf),"sip:%s@%s",dialstr,sip_domain);
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printf("calling %s\n",buf);
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pj_str_t uri = pj_str(buf);
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pjsua_call_id callid;
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status = pjsua_call_make_call(acc_id, &uri, 0, NULL, NULL, &callid);
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if (status != PJ_SUCCESS) error_exit("Error making call", status);
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struct timespec ts = {100, 0};
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while(1) {
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nanosleep(&ts,NULL);
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}
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return 0;
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}
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