Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/comm/chat/protocols/matrix/lib/matrix-sdk/webrtc/audioContext.js b/comm/chat/protocols/matrix/lib/matrix-sdk/webrtc/audioContext.js
new file mode 100644
index 0000000000..4cecf68ad3
--- /dev/null
+++ b/comm/chat/protocols/matrix/lib/matrix-sdk/webrtc/audioContext.js
@@ -0,0 +1,52 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.releaseContext = exports.acquireContext = void 0;
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+let audioContext = null;
+let refCount = 0;
+
+/**
+ * Acquires a reference to the shared AudioContext.
+ * It's highly recommended to reuse this AudioContext rather than creating your
+ * own, because multiple AudioContexts can be problematic in some browsers.
+ * Make sure to call releaseContext when you're done using it.
+ * @returns The shared AudioContext
+ */
+const acquireContext = () => {
+  if (audioContext === null) audioContext = new AudioContext();
+  refCount++;
+  return audioContext;
+};
+
+/**
+ * Signals that one of the references to the shared AudioContext has been
+ * released, allowing the context and associated hardware resources to be
+ * cleaned up if nothing else is using it.
+ */
+exports.acquireContext = acquireContext;
+const releaseContext = () => {
+  refCount--;
+  if (refCount === 0) {
+    audioContext?.close();
+    audioContext = null;
+  }
+};
+exports.releaseContext = releaseContext;
\ No newline at end of file