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diff --git a/talk/app/webrtc/java/android/org/webrtc/EglBase.java b/talk/app/webrtc/java/android/org/webrtc/EglBase.java
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+++ b/talk/app/webrtc/java/android/org/webrtc/EglBase.java
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+/*
+ * libjingle
+ * Copyright 2015 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.webrtc;
+
+import android.graphics.SurfaceTexture;
+import android.view.SurfaceHolder;
+
+import org.webrtc.Logging;
+
+import javax.microedition.khronos.egl.EGL10;
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.egl.EGLContext;
+import javax.microedition.khronos.egl.EGLDisplay;
+import javax.microedition.khronos.egl.EGLSurface;
+
+/**
+ * Holds EGL state and utility methods for handling an EGLContext, an EGLDisplay, and an EGLSurface.
+ */
+public final class EglBase {
+  private static final String TAG = "EglBase";
+  // These constants are taken from EGL14.EGL_OPENGL_ES2_BIT and EGL14.EGL_CONTEXT_CLIENT_VERSION.
+  // https://android.googlesource.com/platform/frameworks/base/+/master/opengl/java/android/opengl/EGL14.java
+  // This is similar to how GlSurfaceView does:
+  // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/5.1.1_r1/android/opengl/GLSurfaceView.java#760
+  private static final int EGL_OPENGL_ES2_BIT = 4;
+  private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
+  // Android-specific extension.
+  private static final int EGL_RECORDABLE_ANDROID = 0x3142;
+
+  private final EGL10 egl;
+  private EGLContext eglContext;
+  private ConfigType configType;
+  private EGLConfig eglConfig;
+  private EGLDisplay eglDisplay;
+  private EGLSurface eglSurface = EGL10.EGL_NO_SURFACE;
+
+  // EGLConfig constructor type. Influences eglChooseConfig arguments.
+  public static enum ConfigType {
+    // No special parameters.
+    PLAIN,
+    // Configures with EGL_SURFACE_TYPE = EGL_PBUFFER_BIT.
+    PIXEL_BUFFER,
+    // Configures with EGL_RECORDABLE_ANDROID = 1.
+    // Discourages EGL from using pixel formats that cannot efficiently be
+    // converted to something usable by the video encoder.
+    RECORDABLE
+  }
+
+  // Create root context without any EGLSurface or parent EGLContext. This can be used for branching
+  // new contexts that share data.
+  public EglBase() {
+    this(EGL10.EGL_NO_CONTEXT, ConfigType.PLAIN);
+  }
+
+  // Create a new context with the specified config type, sharing data with sharedContext.
+  public EglBase(EGLContext sharedContext, ConfigType configType) {
+    this.egl = (EGL10) EGLContext.getEGL();
+    this.configType = configType;
+    eglDisplay = getEglDisplay();
+    eglConfig = getEglConfig(eglDisplay, configType);
+    eglContext = createEglContext(sharedContext, eglDisplay, eglConfig);
+  }
+
+  // Create EGLSurface from the Android SurfaceHolder.
+  public void createSurface(SurfaceHolder surfaceHolder) {
+    createSurfaceInternal(surfaceHolder);
+  }
+
+  // Create EGLSurface from the Android SurfaceTexture.
+  public void createSurface(SurfaceTexture surfaceTexture) {
+    createSurfaceInternal(surfaceTexture);
+  }
+
+  // Create EGLSurface from either a SurfaceHolder or a SurfaceTexture.
+  private void createSurfaceInternal(Object nativeWindow) {
+    if (!(nativeWindow instanceof SurfaceHolder) && !(nativeWindow instanceof SurfaceTexture)) {
+      throw new IllegalStateException("Input must be either a SurfaceHolder or SurfaceTexture");
+    }
+    checkIsNotReleased();
+    if (configType == ConfigType.PIXEL_BUFFER) {
+      Logging.w(TAG, "This EGL context is configured for PIXEL_BUFFER, but uses regular Surface");
+    }
+    if (eglSurface != EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("Already has an EGLSurface");
+    }
+    int[] surfaceAttribs = {EGL10.EGL_NONE};
+    eglSurface = egl.eglCreateWindowSurface(eglDisplay, eglConfig, nativeWindow, surfaceAttribs);
+    if (eglSurface == EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("Failed to create window surface");
+    }
+  }
+
+  // Create dummy 1x1 pixel buffer surface so the context can be made current.
+  public void createDummyPbufferSurface() {
+    createPbufferSurface(1, 1);
+  }
+
+  public void createPbufferSurface(int width, int height) {
+    checkIsNotReleased();
+    if (configType != ConfigType.PIXEL_BUFFER) {
+      throw new RuntimeException(
+          "This EGL context is not configured to use a pixel buffer: " + configType);
+    }
+    if (eglSurface != EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("Already has an EGLSurface");
+    }
+    int[] surfaceAttribs = {EGL10.EGL_WIDTH, width, EGL10.EGL_HEIGHT, height, EGL10.EGL_NONE};
+    eglSurface = egl.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs);
+    if (eglSurface == EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("Failed to create pixel buffer surface");
+    }
+  }
+
+  public EGLContext getContext() {
+    return eglContext;
+  }
+
+  public boolean hasSurface() {
+    return eglSurface != EGL10.EGL_NO_SURFACE;
+  }
+
+  public int surfaceWidth() {
+    final int widthArray[] = new int[1];
+    egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_WIDTH, widthArray);
+    return widthArray[0];
+  }
+
+  public int surfaceHeight() {
+    final int heightArray[] = new int[1];
+    egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_HEIGHT, heightArray);
+    return heightArray[0];
+  }
+
+  public void releaseSurface() {
+    if (eglSurface != EGL10.EGL_NO_SURFACE) {
+      egl.eglDestroySurface(eglDisplay, eglSurface);
+      eglSurface = EGL10.EGL_NO_SURFACE;
+    }
+  }
+
+  private void checkIsNotReleased() {
+    if (eglDisplay == EGL10.EGL_NO_DISPLAY || eglContext == EGL10.EGL_NO_CONTEXT
+        || eglConfig == null) {
+      throw new RuntimeException("This object has been released");
+    }
+  }
+
+  public void release() {
+    checkIsNotReleased();
+    releaseSurface();
+    detachCurrent();
+    egl.eglDestroyContext(eglDisplay, eglContext);
+    egl.eglTerminate(eglDisplay);
+    eglContext = EGL10.EGL_NO_CONTEXT;
+    eglDisplay = EGL10.EGL_NO_DISPLAY;
+    eglConfig = null;
+  }
+
+  public void makeCurrent() {
+    checkIsNotReleased();
+    if (eglSurface == EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("No EGLSurface - can't make current");
+    }
+    if (!egl.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
+      throw new RuntimeException("eglMakeCurrent failed");
+    }
+  }
+
+  // Detach the current EGL context, so that it can be made current on another thread.
+  public void detachCurrent() {
+    if (!egl.eglMakeCurrent(
+        eglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT)) {
+      throw new RuntimeException("eglMakeCurrent failed");
+    }
+  }
+
+  public void swapBuffers() {
+    checkIsNotReleased();
+    if (eglSurface == EGL10.EGL_NO_SURFACE) {
+      throw new RuntimeException("No EGLSurface - can't swap buffers");
+    }
+    egl.eglSwapBuffers(eglDisplay, eglSurface);
+  }
+
+  // Return an EGLDisplay, or die trying.
+  private EGLDisplay getEglDisplay() {
+    EGLDisplay eglDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
+    if (eglDisplay == EGL10.EGL_NO_DISPLAY) {
+      throw new RuntimeException("Unable to get EGL10 display");
+    }
+    int[] version = new int[2];
+    if (!egl.eglInitialize(eglDisplay, version)) {
+      throw new RuntimeException("Unable to initialize EGL10");
+    }
+    return eglDisplay;
+  }
+
+  // Return an EGLConfig, or die trying.
+  private EGLConfig getEglConfig(EGLDisplay eglDisplay, ConfigType configType) {
+    // Always RGB888, GLES2.
+    int[] configAttributes = {
+      EGL10.EGL_RED_SIZE, 8,
+      EGL10.EGL_GREEN_SIZE, 8,
+      EGL10.EGL_BLUE_SIZE, 8,
+      EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+      EGL10.EGL_NONE, 0,  // Allocate dummy fields for specific options.
+      EGL10.EGL_NONE
+    };
+
+    // Fill in dummy fields based on configType.
+    switch (configType) {
+      case PLAIN:
+        break;
+      case PIXEL_BUFFER:
+        configAttributes[configAttributes.length - 3] = EGL10.EGL_SURFACE_TYPE;
+        configAttributes[configAttributes.length - 2] = EGL10.EGL_PBUFFER_BIT;
+        break;
+      case RECORDABLE:
+        configAttributes[configAttributes.length - 3] = EGL_RECORDABLE_ANDROID;
+        configAttributes[configAttributes.length - 2] = 1;
+        break;
+      default:
+        throw new IllegalArgumentException();
+    }
+
+    EGLConfig[] configs = new EGLConfig[1];
+    int[] numConfigs = new int[1];
+    if (!egl.eglChooseConfig(
+        eglDisplay, configAttributes, configs, configs.length, numConfigs)) {
+      throw new RuntimeException("Unable to find RGB888 " + configType + " EGL config");
+    }
+    return configs[0];
+  }
+
+  // Return an EGLConfig, or die trying.
+  private EGLContext createEglContext(
+      EGLContext sharedContext, EGLDisplay eglDisplay, EGLConfig eglConfig) {
+    int[] contextAttributes = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE};
+    EGLContext eglContext =
+        egl.eglCreateContext(eglDisplay, eglConfig, sharedContext, contextAttributes);
+    if (eglContext == EGL10.EGL_NO_CONTEXT) {
+      throw new RuntimeException("Failed to create EGL context");
+    }
+    return eglContext;
+  }
+}