errory voice

src/client/voice/opus/BaseOpusEngine.js

@@ -0,0 +1,15 @@
+class BaseOpus {
+  constructor(player) {
+    this.player = player;
+  }
+
+  encode(buffer) {
+    return buffer;
+  }
+
+  decode(buffer) {
+    return buffer;
+  }
+}
+
+module.exports = BaseOpus;

src/client/voice/opus/NodeOpusEngine.js

@@ -0,0 +1,27 @@
+const OpusEngine = require('./BaseOpusEngine');
+
+let opus;
+
+class NodeOpusEngine extends OpusEngine {
+  constructor(player) {
+    super(player);
+    try {
+      opus = require('node-opus');
+    } catch (err) {
+      throw err;
+    }
+    this.encoder = new opus.OpusEncoder(48000, 2);
+  }
+
+  encode(buffer) {
+    super.encode(buffer);
+    return this.encoder.encode(buffer, 1920);
+  }
+
+  decode(buffer) {
+    super.encode(buffer);
+    return this.encoder.decode(buffer, 1920);
+  }
+}
+
+module.exports = NodeOpusEngine;

src/client/voice/opus/OpusEngineList.js

@@ -0,0 +1,25 @@
+const list = [
+  require('./NodeOpusEngine'),
+];
+
+exports.add = encoder => {
+  list.push(encoder);
+};
+
+function fetch(Encoder) {
+  try {
+    return new Encoder();
+  } catch (err) {
+    return;
+  }
+}
+
+exports.fetch = () => {
+  for (const encoder of list) {
+    const success = fetch(encoder);
+    if (success) {
+      return success;
+    }
+  }
+  throw new Error('could not find an opus engine');
+};