MediaCodecVideoEncoder add support to encode from textures

talk/app/webrtc/java/android/org/webrtc/EglBase.java

 /*
  * 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,
@@ skipping 14 matching lines @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 package org.webrtc;
 
 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;
 
 import org.webrtc.Logging;
 
 /**
  * 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";
@@ skipping 154 matching lines @@
   }
 
   public void swapBuffers() {
     checkIsNotReleased();
     if (eglSurface == EGL14.EGL_NO_SURFACE) {
       throw new RuntimeException("No EGLSurface - can't swap buffers");
     }
     EGL14.eglSwapBuffers(eglDisplay, eglSurface);
   }
 
+  public void swapBuffers(long timeStampNs) {
+    checkIsNotReleased();
+    if (eglSurface == EGL14.EGL_NO_SURFACE) {
+      throw new RuntimeException("No EGLSurface - can't swap buffers");
+    }
+ // See https://android.googlesource.com/platform/frameworks/native/+/tools_r22.2/opengl/specs/EGL_ANDROID_presentation_time.txt

[AlexG, 2015/10/14 23:48:27]

nit: alignment?

[perkj_webrtc, 2015/11/16 13:08:51]

I remove this for now since I have not find a reason to call
EGLExt.eglPresentationTimeANDROID. I asked the hangouts folks about when
EGLExt.eglPresentationTimeANDROID is needed. (it requires EGL14 so I would like
to do it in a follow up cl if it is required. We then must use EGL14 on some SDK
versions and EGL10 on others) 

+    EGLExt.eglPresentationTimeANDROID(eglDisplay, eglSurface, timeStampNs);
+    EGL14.eglSwapBuffers(eglDisplay, eglSurface);
+  }
+
   // Return an EGLDisplay, or die trying.
   private static EGLDisplay getEglDisplay() {
     EGLDisplay eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
     if (eglDisplay == EGL14.EGL_NO_DISPLAY) {
       throw new RuntimeException("Unable to get EGL14 display");
     }
     int[] version = new int[2];
     if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) {
       throw new RuntimeException("Unable to initialize EGL14");
     }
@@ skipping 42 matching lines @@
       EGLContext sharedContext, EGLDisplay eglDisplay, EGLConfig eglConfig) {
     int[] contextAttributes = {EGL14.EGL_CONTEXT_CLIENT_VERSION, 2, EGL14.EGL_NONE};
     EGLContext eglContext =
         EGL14.eglCreateContext(eglDisplay, eglConfig, sharedContext, contextAttributes, 0);
     if (eglContext == EGL14.EGL_NO_CONTEXT) {
       throw new RuntimeException("Failed to create EGL context");
     }
     return eglContext;
   }
 }