feat(subtitles): Adds an option to automatically enable subtitles when transcriber is available.

config.js

@@ -451,6 +451,10 @@ var config = {
 
     //     // Enables automatic turning on transcribing when recording is started
     //     autoTranscribeOnRecord: false,
+
+    //     // Enables automatic request of subtitles when transcriber is present in the meeting, uses the default
+    //     // language that is set
+    //     autoCaptionOnTranscribe: false,
     // },
 
     // Misc

react/features/base/config/configType.ts

@@ -576,6 +576,7 @@ export interface IConfig {
     transcribeWithAppLanguage?: boolean;
     transcribingEnabled?: boolean;
     transcription?: {
+        autoCaptionOnTranscribe?: boolean;
         autoTranscribeOnRecord?: boolean;
         enabled?: boolean;
         preferredLanguage?: string;

react/features/subtitles/middleware.ts

@@ -6,6 +6,7 @@ import { isJwtFeatureEnabled } from '../base/jwt/functions';
 import JitsiMeetJS from '../base/lib-jitsi-meet';
 import { isLocalParticipantModerator } from '../base/participants/functions';
 import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
+import { TRANSCRIBER_JOINED } from '../transcribing/actionTypes';
 
 import {
     SET_REQUESTING_SUBTITLES,
@@ -80,6 +81,15 @@ MiddlewareRegistry.register(store => next => action => {
         _requestingSubtitlesChange(store, toggledValue, state._language);
         break;
     }
+    case TRANSCRIBER_JOINED: {
+        const { transcription } = store.getState()['features/base/config'];
+
+        if (transcription?.autoCaptionOnTranscribe) {
+            store.dispatch(setRequestingSubtitles(true));
+        }
+
+        break;
+    }
     case SET_REQUESTING_SUBTITLES:
         _requestingSubtitlesChange(store, action.enabled, action.language);
         break;

react/features/transcribing/subscriber.ts

@@ -12,7 +12,7 @@ import { isLiveStreamingRunning, isRecordingRunning } from '../recording/functio
 import { isRecorderTranscriptionsRunning } from './functions';
 
 /**
- * Listens for large video participant ID changes.
+ * Listens for transcriber status change.
  */
 StateListenerRegistry.register(
     /* selector */ isRecorderTranscriptionsRunning,