jiti-meet/react/features/rtcstats/middleware.js

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// @flow
import { jitsiLocalStorage } from '@jitsi/js-utils';
import { getAmplitudeIdentity } from '../analytics';
import {
CONFERENCE_UNIQUE_ID_SET,
E2E_RTT_CHANGED,
CONFERENCE_TIMESTAMP_CHANGED,
getConferenceOptions,
getAnalyticsRoomName
} from '../base/conference';
import { LIB_WILL_INIT } from '../base/lib-jitsi-meet/actionTypes';
import { DOMINANT_SPEAKER_CHANGED, getLocalParticipant } from '../base/participants';
import { MiddlewareRegistry } from '../base/redux';
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import { TRACK_ADDED, TRACK_UPDATED } from '../base/tracks';
import { ADD_FACE_EXPRESSION } from '../face-landmarks/actionTypes';
import RTCStats from './RTCStats';
import { canSendRtcstatsData, isRtcstatsEnabled } from './functions';
import logger from './logger';
/**
* Middleware which intercepts lib-jitsi-meet initialization and conference join in order init the
* rtcstats-client.
*
* @param {Store} store - The redux store.
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
const state = store.getState();
const { dispatch } = store;
const config = state['features/base/config'];
const { analytics, faceLandmarks } = config;
switch (action.type) {
case LIB_WILL_INIT: {
if (isRtcstatsEnabled(state)) {
// RTCStats "proxies" WebRTC functions such as GUM and RTCPeerConnection by rewriting the global
// window functions. Because lib-jitsi-meet uses references to those functions that are taken on
// init, we need to add these proxies before it initializes, otherwise lib-jitsi-meet will use the
// original non proxy versions of these functions.
try {
// Default poll interval is 1000ms and standard stats will be used, if not provided in the config.
const pollInterval = analytics.rtcstatsPollInterval || 1000;
const useLegacy = analytics.rtcstatsUseLegacy || false;
// Initialize but don't connect to the rtcstats server wss, as it will start sending data for all
// media calls made even before the conference started.
RTCStats.init({
endpoint: analytics.rtcstatsEndpoint,
useLegacy,
pollInterval
});
} catch (error) {
logger.error('Failed to initialize RTCStats: ', error);
}
}
break;
}
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case TRACK_ADDED: {
if (canSendRtcstatsData(state)) {
const jitsiTrack = action?.track?.jitsiTrack;
const { ssrc, videoType } = jitsiTrack || { };
// Remote tracks store their ssrc in the jitsiTrack object. Local tracks don't. See getSsrcByTrack.
if (videoType && ssrc && !jitsiTrack.isLocal() && !jitsiTrack.isAudioTrack()) {
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RTCStats.sendVideoTypeData({
ssrc,
videoType
});
}
}
break;
}
case TRACK_UPDATED: {
if (canSendRtcstatsData(state)) {
const { videoType, jitsiTrack } = action?.track || { };
const { ssrc } = jitsiTrack || { };
// if the videoType of the remote track has changed we expect to find it in track.videoType. grep for
// trackVideoTypeChanged.
if (videoType && ssrc && !jitsiTrack.isLocal() && !jitsiTrack.isAudioTrack()) {
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RTCStats.sendVideoTypeData({
ssrc,
videoType
});
}
}
break;
}
case CONFERENCE_UNIQUE_ID_SET: {
if (canSendRtcstatsData(state)) {
// Once the conference started connect to the rtcstats server and send data.
try {
RTCStats.connect();
const localParticipant = getLocalParticipant(state);
const options = getConferenceOptions(state);
// Unique identifier for a conference session, not to be confused with meeting name
// i.e. If all participants leave a meeting it will have a different value on the next join.
const { conference } = action;
const meetingUniqueId = conference && conference.getMeetingUniqueId();
// The current implementation of rtcstats-server is configured to send data to amplitude, thus
// we add identity specific information so we can correlate on the amplitude side. If amplitude is
// not configured an empty object will be sent.
// The current configuration of the conference is also sent as metadata to rtcstats server.
// This is done in order to facilitate queries based on different conference configurations.
// e.g. Find all RTCPeerConnections that connect to a specific shard or were created in a
// conference with a specific version.
// XXX(george): we also want to be able to correlate between rtcstats and callstats, so we're
// appending the callstats user name (if it exists) to the display name.
const displayName = options.statisticsId
|| options.statisticsDisplayName
|| jitsiLocalStorage.getItem('callStatsUserName');
RTCStats.sendIdentityData({
...getAmplitudeIdentity(),
...options,
endpointId: localParticipant?.id,
confName: getAnalyticsRoomName(state, dispatch),
displayName,
meetingUniqueId
});
} catch (error) {
// If the connection failed do not impact jitsi-meet just silently fail.
logger.error('RTCStats connect failed with: ', error);
}
}
break;
}
case DOMINANT_SPEAKER_CHANGED: {
if (canSendRtcstatsData(state)) {
const { id, previousSpeakers } = action.participant;
RTCStats.sendDominantSpeakerData({ dominantSpeakerEndpoint: id,
previousSpeakers });
}
break;
}
case E2E_RTT_CHANGED: {
if (canSendRtcstatsData(state)) {
const { participant, rtt } = action.e2eRtt;
RTCStats.sendE2eRttData({
remoteEndpointId: participant.getId(),
rtt,
remoteRegion: participant.getProperty('region')
});
}
break;
}
case ADD_FACE_EXPRESSION: {
if (canSendRtcstatsData(state) && faceLandmarks && faceLandmarks.enableRTCStats) {
const { duration, faceExpression, timestamp } = action;
RTCStats.sendFaceExpressionData({
duration,
faceLandmarks: faceExpression,
timestamp
});
}
break;
}
case CONFERENCE_TIMESTAMP_CHANGED: {
if (canSendRtcstatsData(state)) {
const conferenceTimestamp = action.conferenceTimestamp;
RTCStats.sendConferenceTimestamp(conferenceTimestamp);
}
break;
}
}
return next(action);
});