Feature/minimal media anchoring (#36)

* initial WIP to remove freeswitch from media path when not recording or transcribing dial calls

* implement release-media and anchor-media operations

* mute/unmute now handled by rtpengine

* Dial: dtmf detection now based on SIP INFO events from sbcs and rtpengine

* add reason to gather action, bugfixes for transcribe and say
This commit is contained in:
Dave Horton
2021-10-21 11:59:45 -04:00
committed by GitHub
parent bedf25c6a2
commit 72345f83c1
10 changed files with 228 additions and 4838 deletions

View File

@@ -17,7 +17,7 @@ const moment = require('moment');
const { v4: uuidv4 } = require('uuid');
class SingleDialer extends Emitter {
constructor({logger, sbcAddress, target, opts, application, callInfo}) {
constructor({logger, sbcAddress, target, opts, application, callInfo, accountInfo}) {
super();
assert(target.type);
@@ -31,6 +31,8 @@ class SingleDialer extends Emitter {
this.bindings = logger.bindings();
this.parentCallInfo = callInfo;
this.accountInfo = accountInfo;
this.callGone = false;
this.callSid = uuidv4();
@@ -62,6 +64,7 @@ class SingleDialer extends Emitter {
opts = opts || {};
opts.headers = opts.headers || {};
opts.headers = {...opts.headers, 'X-Call-Sid': this.callSid};
this.ms = ms;
let uri, to;
try {
switch (this.target.type) {
@@ -201,7 +204,7 @@ class SingleDialer extends Emitter {
const duration = moment().diff(connectTime, 'seconds');
this.logger.debug('SingleDialer:exec called party hung up');
this.emit('callStatusChange', {callStatus: CallStatus.Completed, duration});
this.ep.destroy();
this.ep && this.ep.destroy();
})
.on('refresh', () => this.logger.info('SingleDialer:exec - dialog refreshed by uas'))
.on('modify', async(req, res) => {
@@ -299,20 +302,48 @@ class SingleDialer extends Emitter {
this.logger = logger;
this.adulting = true;
this.emit('adulting');
await this.ep.unbridge()
.catch((err) => this.logger.info({err}, 'SingleDialer:doAdulting - failed to unbridge ep'));
this.ep.play('silence_stream://1000');
if (this.ep) {
await this.ep.unbridge()
.catch((err) => this.logger.info({err}, 'SingleDialer:doAdulting - failed to unbridge ep'));
this.ep.play('silence_stream://1000');
}
else {
await this.reAnchorMedia();
}
const cs = new AdultingCallSession({
logger: this.logger,
singleDialer: this,
application,
callInfo: this.callInfo,
accountInfo: this.accountInfo,
tasks
});
cs.exec();
return cs;
}
async releaseMediaToSBC(remoteSdp) {
assert(this.dlg && this.dlg.connected && this.ep && typeof remoteSdp === 'string');
await this.dlg.modify(remoteSdp, {
headers: {
'X-Reason': 'release-media'
}
});
this.ep.destroy()
.then(() => this.ep = null)
.catch((err) => this.logger.error({err}, 'SingleDialer:releaseMediaToSBC: Error destroying endpoint'));
}
async reAnchorMedia() {
assert(this.dlg && this.dlg.connected && !this.ep);
this.ep = await this.ms.createEndpoint({remoteSdp: this.dlg.remote.sdp});
await this.dlg.modify(this.ep.local.sdp, {
headers: {
'X-Reason': 'anchor-media'
}
});
}
_notifyCallStatusChange({callStatus, sipStatus, duration}) {
assert((typeof duration === 'number' && callStatus === CallStatus.Completed) ||
(!duration && callStatus !== CallStatus.Completed),
@@ -335,9 +366,9 @@ class SingleDialer extends Emitter {
}
}
function placeOutdial({logger, srf, ms, sbcAddress, target, opts, application, callInfo}) {
function placeOutdial({logger, srf, ms, sbcAddress, target, opts, application, callInfo, accountInfo}) {
const myOpts = deepcopy(opts);
const sd = new SingleDialer({logger, sbcAddress, target, myOpts, application, callInfo});
const sd = new SingleDialer({logger, sbcAddress, target, myOpts, application, callInfo, accountInfo});
sd.exec(srf, ms, myOpts);
return sd;
}