Merge pull request #239 from GetStream/add/setAudioRecordDataCallback

Add missing setAudioRecordDataCallback method

Author: skydoves

stream-webrtc-android/src/main/java/org/webrtc/audio/JavaAudioDeviceModule.java

@@ -51,6 +51,7 @@ public static class Builder {
     private AudioAttributes audioAttributes;
     private boolean useLowLatency;
     private boolean enableVolumeLogger;
+    private AudioRecordDataCallback audioRecordDataCallback;
 
     private Builder(Context context) {
       this.context = context;
@@ -221,6 +222,16 @@ public Builder setEnableVolumeLogger(boolean enableVolumeLogger) {
       return this;
     }
 
+    /**
+     * Can be used to gain access to the raw ByteBuffer from the recording device before it's
+     * fed into WebRTC. You can use this to manipulate the ByteBuffer (e.g. audio filters).
+     * Make sure that the operation is fast.
+     */
+    public Builder setAudioRecordDataCallback(AudioRecordDataCallback audioRecordDataCallback) {
+      this.audioRecordDataCallback = audioRecordDataCallback;
+      return this;
+    }
+
     /**
      * Construct an AudioDeviceModule based on the supplied arguments. The caller takes ownership
      * and is responsible for calling release().