Android: Expose EglBase.swapBuffers with presentation time

webrtc/sdk/android/src/java/org/webrtc/EglBase14.java

 /*
  *  Copyright 2015 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;
 
 import android.annotation.TargetApi;
 import android.graphics.SurfaceTexture;
 import android.opengl.EGL14;
 import android.opengl.EGLConfig;
 import android.opengl.EGLContext;
 import android.opengl.EGLDisplay;
 import android.opengl.EGLExt;
 import android.opengl.EGLSurface;
 import android.view.Surface;
 
 /**
  * Holds EGL state and utility methods for handling an EGL14 EGLContext, an EGLDisplay,
  * and an EGLSurface.
  */
 @TargetApi(18)
-class EglBase14 extends EglBase {
+class EglBase14 implements EglBase {
   private static final String TAG = "EglBase14";
   private static final int EGLExt_SDK_VERSION = android.os.Build.VERSION_CODES.JELLY_BEAN_MR2;
   private static final int CURRENT_SDK_VERSION = android.os.Build.VERSION.SDK_INT;
   private EGLContext eglContext;
   private EGLConfig eglConfig;
   private EGLDisplay eglDisplay;
   private EGLSurface eglSurface = EGL14.EGL_NO_SURFACE;
 
   // EGL 1.4 is supported from API 17. But EGLExt that is used for setting presentation
   // time stamp on a surface is supported from 18 so we require 18.
@@ skipping 150 matching lines @@
   public void swapBuffers() {
     checkIsNotReleased();
     if (eglSurface == EGL14.EGL_NO_SURFACE) {
       throw new RuntimeException("No EGLSurface - can't swap buffers");
     }
     synchronized (EglBase.lock) {
       EGL14.eglSwapBuffers(eglDisplay, eglSurface);
     }
   }
 
+  @Override
   public void swapBuffers(long timeStampNs) {
     checkIsNotReleased();
     if (eglSurface == EGL14.EGL_NO_SURFACE) {
       throw new RuntimeException("No EGLSurface - can't swap buffers");
     }
     synchronized (EglBase.lock) {
       // See
       // https://android.googlesource.com/platform/frameworks/native/+/tools_r22.2/opengl/specs/EGL_ANDROID_presentation_time.txt
       EGLExt.eglPresentationTimeANDROID(eglDisplay, eglSurface, timeStampNs);
       EGL14.eglSwapBuffers(eglDisplay, eglSurface);
@@ skipping 47 matching lines @@
     synchronized (EglBase.lock) {
       eglContext = EGL14.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes, 0);
     }
     if (eglContext == EGL14.EGL_NO_CONTEXT) {
       throw new RuntimeException(
           "Failed to create EGL context: 0x" + Integer.toHexString(EGL14.eglGetError()));
     }
     return eglContext;
   }
 }