Bindings for injectable Java video encoders.

webrtc/sdk/android/api/org/webrtc/VideoEncoderFactory.java

 /*
  *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 package org.webrtc;
 
 /** Factory for creating VideoEncoders. */
 public interface VideoEncoderFactory {
   /** Creates an encoder for the given video codec. */
   public VideoEncoder createEncoder(VideoCodecInfo info);
 
-  /** Enumerates the list of supported video codecs. */
+  /**
+   * Enumerates the list of supported video codecs. This method will only be called once and the
+   * result will be cached.
+   */
   public VideoCodecInfo[] getSupportedCodecs();
 }