Move src/ -> webrtc/

TBR=niklas.enbom@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/915006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/bitrate_controller/bitrate_controller_impl.h

@@ -0,0 +1,96 @@
+/*
+ *  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.
+ *
+ *  Usage: this class will register multiple RtcpBitrateObserver's one at each
+ *  RTCP module. It will aggregate the results and run one bandwidth estimation
+ *  and push the result to the encoder via VideoEncoderCallback.
+ */
+
+#ifndef WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_
+#define WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_
+
+#include "modules/bitrate_controller/include/bitrate_controller.h"
+
+#include <list>
+#include <map>
+
+#include "system_wrappers/interface/critical_section_wrapper.h"
+#include "modules/bitrate_controller/send_side_bandwidth_estimation.h"
+
+namespace webrtc {
+
+class RtcpBandwidthObserverImpl;
+
+class BitrateControllerImpl : public BitrateController {
+ public:
+  friend class RtcpBandwidthObserverImpl;
+
+  explicit BitrateControllerImpl();
+  virtual ~BitrateControllerImpl();
+
+  virtual bool AvailableBandwidth(uint32_t* bandwidth) const;
+
+  virtual RtcpBandwidthObserver* CreateRtcpBandwidthObserver();
+
+  virtual void SetBitrateObserver(BitrateObserver* observer,
+                                  const uint32_t start_bitrate,
+                                  const uint32_t min_bitrate,
+                                  const uint32_t max_bitrate);
+
+  virtual void RemoveBitrateObserver(BitrateObserver* observer);
+
+ protected:
+  struct BitrateConfiguration {
+    BitrateConfiguration(uint32_t start_bitrate,
+                         uint32_t min_bitrate,
+                         uint32_t max_bitrate)
+        : start_bitrate_(start_bitrate),
+          min_bitrate_(min_bitrate),
+          max_bitrate_(max_bitrate) {
+    }
+    uint32_t start_bitrate_;
+    uint32_t min_bitrate_;
+    uint32_t max_bitrate_;
+  };
+  struct ObserverConfiguration {
+    ObserverConfiguration(BitrateObserver* observer,
+                          uint32_t bitrate)
+        : observer_(observer),
+          min_bitrate_(bitrate) {
+    }
+    BitrateObserver* observer_;
+    uint32_t min_bitrate_;
+  };
+
+  // Called by BitrateObserver's direct from the RTCP module.
+  void OnReceivedEstimatedBitrate(const uint32_t bitrate);
+
+  void OnReceivedRtcpReceiverReport(const uint8_t fraction_loss,
+                                    const uint32_t rtt,
+                                    const int number_of_packets,
+                                    const uint32_t now_ms);
+
+ private:
+  typedef std::multimap<uint32_t, ObserverConfiguration*> ObserverSortingMap;
+  typedef std::pair<BitrateObserver*, BitrateConfiguration*>
+      BitrateObserverConfiguration;
+  typedef std::list<BitrateObserverConfiguration> BitrateObserverConfList;
+
+  BitrateObserverConfList::iterator
+      FindObserverConfigurationPair(const BitrateObserver* observer);
+  void OnNetworkChanged(const uint32_t bitrate,
+                        const uint8_t fraction_loss,  // 0 - 255.
+                        const uint32_t rtt);
+
+  CriticalSectionWrapper* critsect_;
+  SendSideBandwidthEstimation bandwidth_estimation_;
+  BitrateObserverConfList bitrate_observers_;
+};
+}  // namespace webrtc
+#endif  // WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_