Implement AndroidTextureBuffer::NativeToI420.

talk/app/webrtc/java/jni/androidvideocapturer_jni.h

 /*
  * 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 30 matching lines @@
 
 class NativeHandleImpl;
 
 // AndroidVideoCapturerJni implements AndroidVideoCapturerDelegate.
 // The purpose of the delegate is to hide the JNI specifics from the C++ only
 // AndroidVideoCapturer.
 class AndroidVideoCapturerJni : public webrtc::AndroidVideoCapturerDelegate {
  public:
   static int SetAndroidObjects(JNIEnv* jni, jobject appliction_context);
 
-  AndroidVideoCapturerJni(JNIEnv* jni, jobject j_video_capturer);
+  AndroidVideoCapturerJni(JNIEnv* jni,
+                          jobject j_video_capturer,
+                          jobject j_surface_texture_helper);
 
   void Start(int width, int height, int framerate,
              webrtc::AndroidVideoCapturer* capturer) override;
   void Stop() override;
 
   std::string GetSupportedFormats() override;
 
   // Called from VideoCapturerAndroid::NativeObserver on a Java thread.
   void OnCapturerStarted(bool success);
   void OnMemoryBufferFrame(void* video_frame, int length, int width,
                            int height, int rotation, int64_t timestamp_ns);
   void OnTextureFrame(int width, int height, int64_t timestamp_ns,
                       const NativeHandleImpl& handle);
   void OnOutputFormatRequest(int width, int height, int fps);
 
+  jobject GetSurfaceHelper() { return *j_surface_texture_helper_; }
  protected:
   ~AndroidVideoCapturerJni();
 
  private:
   void ReturnBuffer(int64_t time_stamp);
   JNIEnv* jni();
 
   // To avoid deducing Args from the 3rd parameter of AsyncCapturerInvoke.
   template <typename T>
   struct Identity {
     typedef T type;
   };
 
   // Helper function to make safe asynchronous calls to |capturer_|. The calls
   // are not guaranteed to be delivered.
   template <typename... Args>
   void AsyncCapturerInvoke(
       const char* method_name,
       void (webrtc::AndroidVideoCapturer::*method)(Args...),
       typename Identity<Args>::type... args);
 
-  const ScopedGlobalRef<jobject> j_capturer_global_;
+  const ScopedGlobalRef<jobject> j_video_capturer_;
+  const ScopedGlobalRef<jobject> j_surface_texture_helper_;
   const ScopedGlobalRef<jclass> j_video_capturer_class_;
   const ScopedGlobalRef<jclass> j_observer_class_;
 
   rtc::ThreadChecker thread_checker_;
 
   // |capturer| is a guaranteed to be a valid pointer between a call to
   // AndroidVideoCapturerDelegate::Start
   // until AndroidVideoCapturerDelegate::Stop.
   rtc::CriticalSection capturer_lock_;
   webrtc::AndroidVideoCapturer* capturer_ GUARDED_BY(capturer_lock_);
   // |invoker_| is used to communicate with |capturer_| on the thread Start() is
   // called on.
   rtc::scoped_ptr<rtc::GuardedAsyncInvoker> invoker_ GUARDED_BY(capturer_lock_);
 
   static jobject application_context_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(AndroidVideoCapturerJni);
 };
 
 }  // namespace webrtc_jni
 
 #endif  // TALK_APP_WEBRTC_JAVA_JNI_ANDROIDVIDEOCAPTURER_JNI_H_