Implement a dummy host to do capturing and analysis only.

remoting/codec/video_encoder.h

Index: remoting/codec/video_encoder.h
diff --git a/remoting/codec/video_encoder.h b/remoting/codec/video_encoder.h
index 99018f7d4e6c4ad2cde7cd2454722576f1f06351..1fb3ab5fdf1ba6ef2091ae9960d17fa22a7505d8 100644
--- a/remoting/codec/video_encoder.h
+++ b/remoting/codec/video_encoder.h
@@ -9,6 +9,8 @@
 
 #include <memory>
 
+#include "remoting/protocol/session_config.h"

[joedow, 2016/04/28 22:53:54]

I think you can forward declare SessionConfig since it is a const ref.

[Hzj_jie, 2016/05/03 19:07:05]

Done.

+
 namespace webrtc {
 class DesktopFrame;
 }  // namespace webrtc
@@ -34,6 +36,9 @@ class VideoEncoder {
   // there is no work to do.
   virtual std::unique_ptr<VideoPacket> Encode(const webrtc::DesktopFrame& frame,
                                               uint32_t flags) = 0;
+
+  static std::unique_ptr<VideoEncoder> Create(
+      const protocol::SessionConfig& config);
 };
 
 }  // namespace remoting