fix(voice): remove this.current dep in sendAudioFrame

Author: abalabahaha

lib/voice/VoiceConnection.js

@@ -276,7 +276,7 @@ class VoiceConnection extends EventEmitter {
                     this.reconnecting = false;
                     this.ready = true;
                     // Send audio to properly establish the socket (e.g. for voice receive)
-                    this.sendAudioFrame(SILENCE_FRAME);
+                    this.sendAudioFrame(SILENCE_FRAME, this.frameSize);
                     /**
                     * Fired when the voice connection turns ready
                     * @event VoiceConnection#ready
@@ -638,9 +638,10 @@ class VoiceConnection extends EventEmitter {
     /**
     * Send a packet containing an Opus audio frame
     * @arg {Buffer} frame The Opus audio frame
+    * @arg {Number} [frameSize] The size (in samples) of the Opus audio frame
     */
-    sendAudioFrame(frame) {
-        this.timestamp += this.current.options.frameSize;
+    sendAudioFrame(frame, frameSize = this.frameSize) {
+        this.timestamp += frameSize;
         if(this.timestamp >= 4294967295) {
             this.timestamp -= 4294967295;
         }
@@ -711,7 +712,7 @@ class VoiceConnection extends EventEmitter {
 
         if(this.secret) {
             for(let i = 0; i < 5; i++) {
-                this.sendAudioFrame(SILENCE_FRAME);
+                this.sendAudioFrame(SILENCE_FRAME, this.frameSize);
             }
         }
         this.playing = false;
@@ -805,7 +806,7 @@ class VoiceConnection extends EventEmitter {
             return this.stopPlaying();
         }
 
-        this.sendAudioFrame(this.current.buffer);
+        this.sendAudioFrame(this.current.buffer, this.current.options.frameSize);
         this.current.playTime += this.current.options.frameDuration;
         this.current.timeout = setTimeout(this._send, this.current.startTime + this.current.pausedTime + this.current.playTime - Date.now());
     }