From e27fe504a9990abc9e459482b1287c7bbb4b9cd5 Mon Sep 17 00:00:00 2001
From: Michael Jumper <mjumper@apache.org>
Date: Fri, 27 Dec 2019 12:53:30 -0800
Subject: [PATCH] GUACAMOLE-905: Automatically resume AudioContext when
 recording starts.

The AudioContext is paused by default in Google Chrome as a defense
against autoplay. It can be explicitly resumed with resume() as long as
there has been enough interaction with the page.
---
 guacamole-common-js/src/main/webapp/modules/AudioRecorder.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/guacamole-common-js/src/main/webapp/modules/AudioRecorder.js b/guacamole-common-js/src/main/webapp/modules/AudioRecorder.js
index e54dcca61..7a1df8be8 100644
--- a/guacamole-common-js/src/main/webapp/modules/AudioRecorder.js
+++ b/guacamole-common-js/src/main/webapp/modules/AudioRecorder.js
@@ -435,6 +435,11 @@ Guacamole.RawAudioRecorder = function RawAudioRecorder(stream, mimetype) {
         source = context.createMediaStreamSource(stream);
         source.connect(processor);
 
+        // Attempt to explicitly resume AudioContext, as it may be paused
+        // by default
+        if (context.state === 'suspended')
+            context.resume();
+
         // Save stream for later cleanup
         mediaStream = stream;