Merge webrtc/video_engine/ into webrtc/video/

webrtc/video_engine/encoder_state_feedback.h

-/*
- *  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
- *  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.
- */
-
-// TODO(mflodman) ViEEncoder has a time check to not send key frames too often,
-// move the logic to this class.
-
-#ifndef WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_
-#define WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_
-
-#include <map>
-#include <vector>
-
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/typedefs.h"
-
-namespace webrtc {
-
-class CriticalSectionWrapper;
-class EncoderStateFeedbackObserver;
-class RtcpIntraFrameObserver;
-class ViEEncoder;
-
-class EncoderStateFeedback {
- public:
-  friend class EncoderStateFeedbackObserver;
-
-  EncoderStateFeedback();
-  ~EncoderStateFeedback();
-
-  // Adds an encoder to receive feedback for a set of SSRCs.
-  void AddEncoder(const std::vector<uint32_t>& ssrc, ViEEncoder* encoder);
-
-  // Removes a registered ViEEncoder.
-  void RemoveEncoder(const ViEEncoder* encoder);
-
-  // Returns an observer to register at the requesting class. The observer has
-  // the same lifetime as the EncoderStateFeedback instance.
-  RtcpIntraFrameObserver* GetRtcpIntraFrameObserver();
-
- protected:
-  // Called by EncoderStateFeedbackObserver when a new key frame is requested.
-  void OnReceivedIntraFrameRequest(uint32_t ssrc);
-  void OnReceivedSLI(uint32_t ssrc, uint8_t picture_id);
-  void OnReceivedRPSI(uint32_t ssrc, uint64_t picture_id);
-  void OnLocalSsrcChanged(uint32_t old_ssrc, uint32_t new_ssrc);
-
- private:
-  typedef std::map<uint32_t,  ViEEncoder*> SsrcEncoderMap;
-
-  rtc::scoped_ptr<CriticalSectionWrapper> crit_;
-
-  // Instance registered at the class requesting new key frames.
-  rtc::scoped_ptr<EncoderStateFeedbackObserver> observer_;
-
-  // Maps a unique ssrc to the given encoder.
-  SsrcEncoderMap encoders_;
-
-  RTC_DISALLOW_COPY_AND_ASSIGN(EncoderStateFeedback);
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_VIDEO_ENGINE_ENCODER_STATE_FEEDBACK_H_