Extract createVoiceMessageContent (#9322)

src/utils/createVoiceMessageContent.ts

@@ -0,0 +1,64 @@
+/*
+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.
+*/
+
+import { IEncryptedFile, MsgType } from "matrix-js-sdk/src/matrix";
+
+/**
+ * @param {string} mxc MXC URL of the file
+ * @param {string} mimetype
+ * @param {number} duration Duration in milliseconds
+ * @param {number} size
+ * @param {number[]} [waveform]
+ * @param {IEncryptedFile} [file] Encrypted file
+ */
+export const createVoiceMessageContent = (
+    mxc: string,
+    mimetype: string,
+    duration: number,
+    size: number,
+    file?: IEncryptedFile,
+    waveform?: number[],
+) => {
+    return {
+        "body": "Voice message",
+        //"msgtype": "org.matrix.msc2516.voice",
+        "msgtype": MsgType.Audio,
+        "url": mxc,
+        "file": file,
+        "info": {
+            duration,
+            mimetype,
+            size,
+        },
+
+        // MSC1767 + Ideals of MSC2516 as MSC3245
+        // https://github.com/matrix-org/matrix-doc/pull/3245
+        "org.matrix.msc1767.text": "Voice message",
+        "org.matrix.msc1767.file": {
+            url: mxc,
+            file,
+            name: "Voice message.ogg",
+            mimetype,
+            size,
+        },
+        "org.matrix.msc1767.audio": {
+            duration,
+            // https://github.com/matrix-org/matrix-doc/pull/3246
+            waveform,
+        },
+        "org.matrix.msc3245.voice": {}, // No content, this is a rendering hint
+    };
+};