Re-land "Convert native handles to buffers before encoding."

talk/app/webrtc/java/jni/native_handle_impl.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 11 matching lines @@
  * 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.
  *
  */
 
 #ifndef TALK_APP_WEBRTC_JAVA_JNI_NATIVE_HANDLE_IMPL_H_
 #define TALK_APP_WEBRTC_JAVA_JNI_NATIVE_HANDLE_IMPL_H_
 
+#include "webrtc/base/checks.h"
+#include "webrtc/common_video/interface/video_frame_buffer.h"
+
 namespace webrtc_jni {
 
 // Wrapper for texture object.
 class NativeHandleImpl {
  public:
   NativeHandleImpl() : texture_object_(NULL), texture_id_(-1) {}
 
   void* GetHandle() {
     return texture_object_;
   }
   int GetTextureId() {
     return texture_id_;
   }
   void SetTextureObject(void *texture_object, int texture_id) {
     texture_object_ = reinterpret_cast<jobject>(texture_object);
     texture_id_ = texture_id;
   }
 
  private:
   jobject texture_object_;
   int32_t texture_id_;
 };
 
+class JniNativeHandleBuffer : public webrtc::NativeHandleBuffer {
+ public:
+  JniNativeHandleBuffer(void* native_handle, int width, int height)
+      : NativeHandleBuffer(native_handle, width, height) {}
+
+  // TODO(pbos): Override destructor to release native handle, at the moment the
+  // native handle is not released based on refcount.
+
+ private:
+  rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override {
+    // TODO(pbos): Implement before using this in the encoder pipeline (or
+    // remove the CHECK() in VideoCapture).
+    RTC_NOTREACHED();
+    return nullptr;
+  }
+};
+
 }  // namespace webrtc_jni
 
 #endif  // TALK_APP_WEBRTC_JAVA_JNI_NATIVE_HANDLE_IMPL_H_