From faee1c139e36a2f9c5df853f3aa6a1a9deb4180f Mon Sep 17 00:00:00 2001
From: damencho <damencho@jitsi.org>
Date: Wed, 5 Jun 2019 18:01:18 +0100
Subject: [PATCH] Adds a config param startSilent to disable audio output.

---
 conference.js                               | 7 +++++++
 config.js                                   | 4 ++++
 lang/main.json                              | 2 ++
 modules/UI/videolayout/SmallVideo.js        | 4 +++-
 react/features/base/config/functions.any.js | 1 +
 5 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/conference.js b/conference.js
index d401d7e16..d09edf07f 100644
--- a/conference.js
+++ b/conference.js
@@ -792,6 +792,13 @@ export default {
                     this.recorder = new Recorder();
                 }
 
+                if (config.startSilent) {
+                    APP.store.dispatch(showNotification({
+                        descriptionKey: 'notify.startSilentDescription',
+                        titleKey: 'notify.startSilentTitle'
+                    }));
+                }
+
                 // XXX The API will take care of disconnecting from the XMPP
                 // server (and, thus, leaving the room) on unload.
                 return new Promise((resolve, reject) => {
diff --git a/config.js b/config.js
index 13b8a09e1..8c3a442a8 100644
--- a/config.js
+++ b/config.js
@@ -90,6 +90,10 @@ var config = {
     // applied locally. FIXME: having these 2 options is confusing.
     // startWithAudioMuted: false,
 
+    // Enabling it (with #params) will disable local audio output of remote
+    // participants and to enable it back a reload is needed.
+    // startSilent: false
+
     // Video
 
     // Sets the preferred resolution (height) for local video. Defaults to 720.
diff --git a/lang/main.json b/lang/main.json
index eec7a3c84..346fbb59f 100644
--- a/lang/main.json
+++ b/lang/main.json
@@ -478,6 +478,8 @@
         "mutedTitle": "You're muted!",
         "raisedHand": "__name__ would like to speak.",
         "somebody": "Somebody",
+        "startSilentTitle": "You joined with no audio output!",
+        "startSilentDescription": "Rejoin the meeting to enable audio",
         "suboptimalExperienceDescription": "Eer... we are afraid your experience with __appName__ isn't going to be that great here. We are looking for ways to improve this but, until then, please try using one of the <a href='static/recommendedBrowsers.html' target='_blank'>fully supported browsers</a>.",
         "suboptimalExperienceTitle": "Browser Warning",
         "newDeviceCameraTitle": "New camera detected",
diff --git a/modules/UI/videolayout/SmallVideo.js b/modules/UI/videolayout/SmallVideo.js
index 4e7b13039..80c936db1 100644
--- a/modules/UI/videolayout/SmallVideo.js
+++ b/modules/UI/videolayout/SmallVideo.js
@@ -1,4 +1,4 @@
-/* global $, APP, interfaceConfig */
+/* global $, APP, config, interfaceConfig */
 
 /* eslint-disable no-unused-vars */
 import React from 'react';
@@ -199,6 +199,8 @@ SmallVideo.createStreamElement = function(stream) {
 
     if (isVideo) {
         element.setAttribute('muted', 'true');
+    } else if (config.startSilent) {
+        element.muted = true;
     }
 
     element.autoplay = true;
diff --git a/react/features/base/config/functions.any.js b/react/features/base/config/functions.any.js
index 0caefd1fb..703e4f209 100644
--- a/react/features/base/config/functions.any.js
+++ b/react/features/base/config/functions.any.js
@@ -132,6 +132,7 @@ const WHITELISTED_KEYS = [
     'startAudioMuted',
     'startAudioOnly',
     'startBitrate',
+    'startSilent',
     'startScreenSharing',
     'startVideoMuted',
     'startWithAudioMuted',