diff --git a/src/video_engine/include/vie_render.h b/src/video_engine/include/vie_render.h
index 872ce23bd6..0b8328e254 100644
--- a/src/video_engine/include/vie_render.h
+++ b/src/video_engine/include/vie_render.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 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
@@ -36,7 +36,10 @@ class WEBRTC_DLLEXPORT ExternalRenderer {
   // This method is called when a new frame should be rendered.
   virtual int DeliverFrame(unsigned char* buffer,
                            int buffer_size,
-                           unsigned int time_stamp) = 0;
+                           // RTP timestamp in 90kHz.
+                           uint32_t time_stamp,
+                           // Wallclock render time in miliseconds
+                           int64_t render_time) = 0;
 
  protected:
   virtual ~ExternalRenderer() {}
diff --git a/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.cc b/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.cc
index 726da075fc..d9c8da31ba 100644
--- a/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.cc
+++ b/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.cc
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 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
@@ -73,7 +73,8 @@ void ViEToFileRenderer::ForgetOutputFile() {
 
 int ViEToFileRenderer::DeliverFrame(unsigned char *buffer,
                                     int buffer_size,
-                                    unsigned int time_stamp) {
+                                    uint32_t time_stamp,
+                                    int64_t render_time) {
   assert(output_file_ != NULL);
 
   int written = std::fwrite(buffer, sizeof(unsigned char),
diff --git a/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.h b/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.h
index 36dae550dc..08559af7f2 100644
--- a/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.h
+++ b/src/video_engine/test/auto_test/helpers/vie_to_file_renderer.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 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
@@ -43,7 +43,8 @@ class ViEToFileRenderer: public webrtc::ExternalRenderer {
                       unsigned int number_of_streams);
 
   int DeliverFrame(unsigned char* buffer, int buffer_size,
-                   unsigned int time_stamp);
+                   uint32_t time_stamp,
+                   int64_t render_time);
 
   const std::string GetFullOutputPath() const;
 
diff --git a/src/video_engine/test/auto_test/primitives/framedrop_primitives.cc b/src/video_engine/test/auto_test/primitives/framedrop_primitives.cc
index 3e43197245..6767cc6d22 100644
--- a/src/video_engine/test/auto_test/primitives/framedrop_primitives.cc
+++ b/src/video_engine/test/auto_test/primitives/framedrop_primitives.cc
@@ -498,11 +498,13 @@ int FrameDropDetector::GetNumberOfFramesDroppedAt(State state) {
 }
 
 int FrameDropMonitoringRemoteFileRenderer::DeliverFrame(
-    unsigned char *buffer, int buffer_size, unsigned int time_stamp) {
+    unsigned char *buffer, int buffer_size, uint32_t time_stamp,
+    int64_t render_time) {
   // Register that this frame has been rendered:
   frame_drop_detector_->ReportFrameState(FrameDropDetector::kRendered,
                                          time_stamp);
-  return ViEToFileRenderer::DeliverFrame(buffer, buffer_size, time_stamp);
+  return ViEToFileRenderer::DeliverFrame(buffer, buffer_size,
+                                         time_stamp, render_time);
 }
 
 int FrameDropMonitoringRemoteFileRenderer::FrameSizeChange(
diff --git a/src/video_engine/test/auto_test/primitives/framedrop_primitives.h b/src/video_engine/test/auto_test/primitives/framedrop_primitives.h
index e5091f14f9..80575c3aa0 100644
--- a/src/video_engine/test/auto_test/primitives/framedrop_primitives.h
+++ b/src/video_engine/test/auto_test/primitives/framedrop_primitives.h
@@ -220,7 +220,8 @@ class FrameDropMonitoringRemoteFileRenderer : public ViEToFileRenderer {
   int FrameSizeChange(unsigned int width, unsigned int height,
                       unsigned int number_of_streams);
   int DeliverFrame(unsigned char* buffer, int buffer_size,
-                   unsigned int time_stamp);
+                   uint32_t time_stamp,
+                   int64_t render_time);
  private:
   FrameDropDetector* frame_drop_detector_;
 };
diff --git a/src/video_engine/test/auto_test/source/vie_autotest_render.cc b/src/video_engine/test/auto_test/source/vie_autotest_render.cc
index 27fc156920..2a73a6c2ce 100644
--- a/src/video_engine/test/auto_test/source/vie_autotest_render.cc
+++ b/src/video_engine/test/auto_test/source/vie_autotest_render.cc
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 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
@@ -56,7 +56,8 @@ public:
     }
 
     virtual int DeliverFrame(unsigned char* buffer, int bufferSize,
-                             unsigned int time_stamp)
+                             uint32_t time_stamp,
+                             int64_t render_time)
     {
         if (bufferSize != _width * _height * 3 / 2)
         {
diff --git a/src/video_engine/vie_renderer.cc b/src/video_engine/vie_renderer.cc
index 530ae55692..7e56b7a7c4 100644
--- a/src/video_engine/vie_renderer.cc
+++ b/src/video_engine/vie_renderer.cc
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *  Copyright (c) 2012 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
@@ -226,7 +226,8 @@ WebRtc_Word32 ViEExternalRendererImpl::RenderFrame(
   if (out_frame) {
     external_renderer_->DeliverFrame(out_frame->Buffer(),
                                      out_frame->Length(),
-                                     video_frame.TimeStamp());
+                                     video_frame.TimeStamp(),
+                                     video_frame.RenderTimeMs());
   }
   return 0;
 }