324 lines
10 KiB
C++
324 lines
10 KiB
C++
#include "PjsuaCommunicator.hpp"
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#include <pjlib.h>
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#include <pjsua-lib/pjsua.h>
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#include <boost/algorithm/string.hpp>
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#include <boost/format.hpp>
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using namespace std;
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/**
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* These are global, because there's no way to pass it's value to onCallMediaState callback.
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*/
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static int mediaPortSlot = -1;
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static sip::PjsuaCommunicator *pjsuaCommunicator = nullptr;
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static log4cpp::Category &pjLogger = log4cpp::Category::getInstance("PjSip");
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void sip::PjsuaCommunicator_onCallMediaState(pjsua_call_id call_id) {
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pjsua_call_info ci;
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pjsua_call_get_info(call_id, &ci);
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if (ci.media_status == PJSUA_CALL_MEDIA_ACTIVE) {
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if (mediaPortSlot == -1) {
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pj_status_t status = pjsua_conf_add_port(
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pjsuaCommunicator->pool,
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pjsuaCommunicator->mediaPort,
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&mediaPortSlot);
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if (status != PJ_SUCCESS) {
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throw sip::Exception("error when calling pjsua_conf_add_port", status);
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}
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}
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pjsua_conf_connect(ci.conf_slot, mediaPortSlot);
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pjsua_conf_connect(mediaPortSlot, ci.conf_slot);
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}
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}
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static void onIncomingCall(pjsua_acc_id acc_id,
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pjsua_call_id call_id,
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pjsip_rx_data *rdata) {
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pjsua_call_info ci;
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PJ_UNUSED_ARG(acc_id);
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PJ_UNUSED_ARG(rdata);
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pjsua_call_get_info(call_id, &ci);
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pjsua_call_set_user_data(call_id, pjsuaCommunicator);
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pjLogger.info("Incoming call from %s.", ci.remote_info.ptr);
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/* Automatically answer incoming calls with 200/OK */
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pjsua_call_answer(call_id, 200, NULL, NULL);
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}
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static void onDtmfDigit(pjsua_call_id callId, int digit) {
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pjLogger.notice("DTMF digit '%c' (call %d).", digit, callId);
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}
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static void onCallState(pjsua_call_id call_id,
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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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sip::PjsuaCommunicator *communicator
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= reinterpret_cast<sip::PjsuaCommunicator *>(pjsua_call_get_user_data(call_id));
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pjLogger.info("Call %d state=%s.", call_id, ci.state_text.ptr);
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string address = string(ci.remote_info.ptr);
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boost::replace_all(address, "<", "");
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boost::replace_all(address, ">", "");
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if (ci.state == PJSIP_INV_STATE_CONFIRMED) {
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auto msgText = "Start call from " + address + ".";
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pjLogger.notice(msgText);
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communicator->onStateChange(msgText);
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} else if (ci.state == PJSIP_INV_STATE_DISCONNECTED) {
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auto msgText = "End call from " + address + ".";
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pjLogger.notice(msgText);
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communicator->onStateChange(msgText);
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}
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}
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static void pjLogToLog4CppBridgeFunction(int level, const char *data, int len) {
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using namespace log4cpp;
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std::map<int, Priority::Value> prioritiesMap = {
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{1, Priority::ERROR},
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{2, Priority::WARN},
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{3, Priority::NOTICE},
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{4, Priority::INFO},
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{5, Priority::DEBUG},
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{6, Priority::DEBUG}
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};
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string message(data);
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message = message.substr(0, message.size() - 1); // remove newline
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pjLogger << prioritiesMap.at(level) << message;
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}
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sip::PjsuaCommunicator::PjsuaCommunicator()
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: logger(log4cpp::Category::getInstance("SipCommunicator")),
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callbackLogger(log4cpp::Category::getInstance("SipCommunicatorCallback")) {
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pj_status_t status;
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if (pjsuaCommunicator != nullptr) {
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throw sip::Exception("this is a singleton class");
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}
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pjsuaCommunicator = this;
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status = pjsua_create();
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if (status != PJ_SUCCESS) {
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throw sip::Exception("Error in pjsua_create()", status);
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}
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pj_log_set_log_func(pjLogToLog4CppBridgeFunction);
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pjsua_config generalConfig;
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pjsua_config_default(&generalConfig);
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string userAgent = "Mumsi Mumble-SIP Bridge";
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generalConfig.user_agent = toPjString(userAgent);
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generalConfig.max_calls = 1;
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generalConfig.cb.on_incoming_call = &onIncomingCall;
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generalConfig.cb.on_dtmf_digit = &onDtmfDigit;
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generalConfig.cb.on_call_media_state = &PjsuaCommunicator_onCallMediaState;
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generalConfig.cb.on_call_state = &onCallState;
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pjsua_logging_config logConfig;
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pjsua_logging_config_default(&logConfig);
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logConfig.cb = pjLogToLog4CppBridgeFunction;
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logConfig.console_level = 5;
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pjsua_media_config mediaConfig;
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pjsua_media_config_default(&mediaConfig);
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mediaConfig.max_media_ports = 3;
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status = pjsua_init(&generalConfig, &logConfig, &mediaConfig);
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if (status != PJ_SUCCESS) {
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throw sip::Exception("error in pjsua_init", status);
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}
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status = pjsua_set_null_snd_dev();
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if (status != PJ_SUCCESS) {
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throw sip::Exception("error setting null device", status);
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}
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pj_caching_pool cachingPool;
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pj_caching_pool_init(&cachingPool, &pj_pool_factory_default_policy, 0);
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pool = pj_pool_create(&cachingPool.factory, "wav", 32768, 8192, nullptr);
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// todo calculate sizes
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pjmedia_circ_buf_create(pool, 960 * 10, &inputBuff);
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mediaPort = createMediaPort();
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}
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void sip::PjsuaCommunicator::connect(
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std::string host,
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std::string user,
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std::string password,
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unsigned int port) {
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pj_status_t status;
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pjsua_transport_config transportConfig;
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pjsua_transport_config_default(&transportConfig);
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transportConfig.port = port;
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status = pjsua_transport_create(PJSIP_TRANSPORT_UDP, &transportConfig, NULL);
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if (status != PJ_SUCCESS) {
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throw sip::Exception("Error creating transport", status);
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}
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status = pjsua_start();
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if (status != PJ_SUCCESS) {
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throw sip::Exception("Error starting sip", status);
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}
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registerAccount(host, user, password);
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}
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sip::PjsuaCommunicator::~PjsuaCommunicator() {
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pjsua_destroy();
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if (mediaPort != nullptr) {
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delete mediaPort;
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}
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}
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pjmedia_port *sip::PjsuaCommunicator::createMediaPort() {
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pjmedia_port *mp = new pjmedia_port();
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string name = "PjsuaMP";
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auto pjName = toPjString(name);
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pj_status_t status = pjmedia_port_info_init(&(mp->info),
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&pjName,
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PJMEDIA_SIG_CLASS_PORT_AUD('s', 'i'),
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SAMPLING_RATE,
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1,
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16,
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SAMPLING_RATE * 20 /
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1000); // todo recalculate to match mumble specs
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if (status != PJ_SUCCESS) {
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throw sip::Exception("error while calling pjmedia_port_info_init().", status);
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}
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mp->get_frame = &MediaPort_getFrameRawCallback;
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mp->put_frame = &MediaPort_putFrameRawCallback;
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mp->port_data.pdata = this;
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return mp;
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}
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pj_status_t sip::MediaPort_getFrameRawCallback(pjmedia_port *port,
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pjmedia_frame *frame) {
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PjsuaCommunicator *communicator = static_cast<PjsuaCommunicator *>(port->port_data.pdata);
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frame->type = PJMEDIA_FRAME_TYPE_AUDIO;
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return communicator->mediaPortGetFrame(frame);
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}
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pj_status_t sip::MediaPort_putFrameRawCallback(pjmedia_port *port,
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pjmedia_frame *frame) {
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PjsuaCommunicator *communicator = static_cast<PjsuaCommunicator *>(port->port_data.pdata);
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pj_int16_t *samples = static_cast<pj_int16_t *>(frame->buf);
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pj_size_t count = frame->size / 2 / PJMEDIA_PIA_CCNT(&port->info);
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frame->type = PJMEDIA_FRAME_TYPE_AUDIO;
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communicator->mediaPortPutFrame(samples, count);
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return PJ_SUCCESS;
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}
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pj_status_t sip::PjsuaCommunicator::mediaPortGetFrame(pjmedia_frame *frame) {
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std::unique_lock<std::mutex> lock(inBuffAccessMutex);
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pj_int16_t *samples = static_cast<pj_int16_t *>(frame->buf);
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pj_size_t count = frame->size / 2 / PJMEDIA_PIA_CCNT(&mediaPort->info);
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pj_size_t availableSamples = pjmedia_circ_buf_get_len(inputBuff);
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const int samplesToRead = std::min(count, availableSamples);
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callbackLogger.debug("Pulling %d samples from in-buff.", samplesToRead);
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pjmedia_circ_buf_read(inputBuff, samples, samplesToRead);
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if (availableSamples < count) {
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callbackLogger.debug("Requested %d samples, available %d, filling remaining with zeros.", count,
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availableSamples);
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for (int i = samplesToRead; i < count; ++i) {
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samples[i] = 0;
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}
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}
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return PJ_SUCCESS;
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}
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void sip::PjsuaCommunicator::mediaPortPutFrame(pj_int16_t *samples, pj_size_t count) {
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if (count > 0) {
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callbackLogger.debug("Calling onIncomingPcmSamples with %d samples.", count);
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onIncomingPcmSamples(samples, count);
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}
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}
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void sip::PjsuaCommunicator::registerAccount(string host, string user, string password) {
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pjsua_acc_config accConfig;
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pjsua_acc_config_default(&accConfig);
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string uri = string("sip:") + user + "@" + host;
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string regUri = "sip:" + host;
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string scheme = "digest";
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pj_status_t status;
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status = pjsua_verify_sip_url(uri.c_str());
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if (status != PJ_SUCCESS) {
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throw sip::Exception("invalid URI format", status);
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}
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logger.info("Registering account for URI: %s.", uri.c_str());
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accConfig.id = toPjString(uri);
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accConfig.reg_uri = toPjString(regUri);
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accConfig.cred_count = 1;
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accConfig.cred_info[0].realm = toPjString(host);
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accConfig.cred_info[0].scheme = toPjString(scheme);
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accConfig.cred_info[0].username = toPjString(user);
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accConfig.cred_info[0].data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;
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accConfig.cred_info[0].data = toPjString(password);
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pjsua_acc_id acc_id;
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status = pjsua_acc_add(&accConfig, PJ_TRUE, &acc_id);
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if (status != PJ_SUCCESS) {
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throw sip::Exception("failed to register account", status);
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}
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}
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void sip::PjsuaCommunicator::sendPcmSamples(int16_t *samples, unsigned int length) {
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std::unique_lock<std::mutex> lock(inBuffAccessMutex);
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callbackLogger.debug("Pushing %d samples to in-buff.", length);
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pjmedia_circ_buf_write(inputBuff, samples, length);
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}
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