Android: Generate JNI code for remaining classes in sdk/android

Bug: webrtc:8278
Change-Id: I20a4388ab347d8745d0edde808f7a0b610f077f9
Reviewed-on: https://webrtc-review.googlesource.com/31484
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21227}

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

@@ -20,6 +20,7 @@ import android.opengl.EGLExt;
 import android.opengl.EGLSurface;
 import android.os.Build;
 import android.view.Surface;
+import org.webrtc.EglBase;
 
 /**
  * Holds EGL state and utility methods for handling an EGL14 EGLContext, an EGLDisplay,
@@ -59,6 +60,11 @@ class EglBase14 implements EglBase {
     public Context(android.opengl.EGLContext eglContext) {
       this.egl14Context = eglContext;
     }
+
+    @CalledByNative("Context")
+    static boolean isEgl14Context(EglBase.Context context) {
+      return context instanceof EglBase14.Context;
+    }
   }
 
   // Create a new context with the specified config type, sharing data with sharedContext.

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

@@ -45,7 +45,7 @@ class HardwareVideoEncoder implements VideoEncoder {
 
   private static final int MAX_VIDEO_FRAMERATE = 30;
 
-  // See MAX_ENCODER_Q_SIZE in androidmediaencoder_jni.cc.
+  // See MAX_ENCODER_Q_SIZE in androidmediaencoder.cc.
   private static final int MAX_ENCODER_Q_SIZE = 2;
 
   private static final int MEDIA_CODEC_RELEASE_TIMEOUT_MS = 5000;

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

@@ -0,0 +1,48 @@
+/*
+ *  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;
+
+import java.io.UnsupportedEncodingException;
+import java.util.Map;
+
+/**
+ * This class is only used from jni_helper.cc to give some Java functionality that were not possible
+ * to generate in other ways due to bugs.webrtc.org/8606 and bugs.webrtc.org/8632.
+ */
+class JniHelper {
+  // TODO(bugs.webrtc.org/8632): Remove.
+  @CalledByNative
+  static byte[] getStringBytes(String s) {
+    try {
+      return s.getBytes("ISO-8859-1");
+    } catch (UnsupportedEncodingException e) {
+      throw new RuntimeException("ISO-8859-1 is unsupported");
+    }
+  }
+
+  // TODO(bugs.webrtc.org/8632): Remove.
+  @CalledByNative
+  static Object getStringClass() {
+    return String.class;
+  }
+
+  // TODO(bugs.webrtc.org/8606): Remove.
+  @CalledByNative
+  static String getKey(Map.Entry<String, String> entry) {
+    return entry.getKey();
+  }
+
+  // TODO(bugs.webrtc.org/8606): Remove.
+  @CalledByNative
+  static String getValue(Map.Entry<String, String> entry) {
+    return entry.getValue();
+  }
+}

sdk/android/src/java/org/webrtc/WrappedNativeI420Buffer.java

@@ -26,6 +26,7 @@ class WrappedNativeI420Buffer implements VideoFrame.I420Buffer {
   private final int strideV;
   private final long nativeBuffer;
 
+  @CalledByNative
   WrappedNativeI420Buffer(int width, int height, ByteBuffer dataY, int strideY, ByteBuffer dataU,
       int strideU, ByteBuffer dataV, int strideV, long nativeBuffer) {
     this.width = width;