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/webrtc@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/video_engine/vie_channel_manager.h b/video_engine/vie_channel_manager.h
new file mode 100644
index 0000000..04bd37a
--- /dev/null
+++ b/video_engine/vie_channel_manager.h
@@ -0,0 +1,159 @@
+/*
+ *  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.
+ */
+
+#ifndef WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_
+#define WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_
+
+#include <list>
+#include <map>
+
+#include "engine_configurations.h"  // NOLINT
+#include "system_wrappers/interface/scoped_ptr.h"
+#include "typedefs.h"  // NOLINT
+#include "video_engine/include/vie_rtp_rtcp.h"
+#include "video_engine/vie_channel_group.h"
+#include "video_engine/vie_defines.h"
+#include "video_engine/vie_manager_base.h"
+#include "video_engine/vie_remb.h"
+
+namespace webrtc {
+
+class CriticalSectionWrapper;
+class MapWrapper;
+class ProcessThread;
+class ViEChannel;
+class ViEEncoder;
+class ViEPerformanceMonitor;
+class VoEVideoSync;
+class VoiceEngine;
+
+typedef std::list<ChannelGroup*> ChannelGroups;
+typedef std::list<ViEChannel*> ChannelList;
+typedef std::map<int, ViEChannel*> ChannelMap;
+typedef std::map<int, ViEEncoder*> EncoderMap;
+
+class ViEChannelManager: private ViEManagerBase {
+  friend class ViEChannelManagerScoped;
+ public:
+  ViEChannelManager(int engine_id,
+                    int number_of_cores,
+                    ViEPerformanceMonitor* vie_performance_monitor,
+                    const OverUseDetectorOptions& options);
+  ~ViEChannelManager();
+
+  void SetModuleProcessThread(ProcessThread* module_process_thread);
+
+  // Creates a new channel. 'channel_id' will be the id of the created channel.
+  int CreateChannel(int* channel_id);
+
+  // Creates a new channel grouped with |original_channel|. The new channel
+  // will get its own |ViEEncoder| if |sender| is set to true. It will be a
+  // receive only channel, without an own |ViEEncoder| if |sender| is false.
+  int CreateChannel(int* channel_id, int original_channel, bool sender);
+
+  // Deletes a channel.
+  int DeleteChannel(int channel_id);
+
+  // Set the voice engine instance to be used by all video channels.
+  int SetVoiceEngine(VoiceEngine* voice_engine);
+
+  // Enables lip sync of the channel.
+  int ConnectVoiceChannel(int channel_id, int audio_channel_id);
+
+  // Disables lip sync of the channel.
+  int DisconnectVoiceChannel(int channel_id);
+
+  VoiceEngine* GetVoiceEngine();
+
+  // Adds a channel to include when sending REMB.
+  bool SetRembStatus(int channel_id, bool sender, bool receiver);
+
+  // Sets the bandwidth estimation mode. This can only be changed before
+  // adding a channel.
+  bool SetBandwidthEstimationMode(BandwidthEstimationMode mode);
+
+  // Updates the SSRCs for a channel. If one of the SSRCs already is registered,
+  // it will simply be ignored and no error is returned.
+  void UpdateSsrcs(int channel_id, const std::list<unsigned int>& ssrcs);
+
+ private:
+  // Creates a channel object connected to |vie_encoder|. Assumed to be called
+  // protected.
+  bool CreateChannelObject(int channel_id, ViEEncoder* vie_encoder,
+                           RtcpBandwidthObserver* bandwidth_observer,
+                           RemoteBitrateEstimator* remote_bitrate_estimator,
+                           RtcpIntraFrameObserver* intra_frame_observer,
+                           bool sender);
+
+  // Used by ViEChannelScoped, forcing a manager user to use scoped.
+  // Returns a pointer to the channel with id 'channel_id'.
+  ViEChannel* ViEChannelPtr(int channel_id) const;
+
+  // Methods used by ViECaptureScoped and ViEEncoderScoped.
+  // Gets the ViEEncoder used as input for video_channel_id
+  ViEEncoder* ViEEncoderPtr(int video_channel_id) const;
+
+  // Returns a free channel id, -1 if failing.
+  int FreeChannelId();
+
+  // Returns a previously allocated channel id.
+  void ReturnChannelId(int channel_id);
+
+  // Returns the iterator to the ChannelGroup containing |channel_id|.
+  ChannelGroup* FindGroup(int channel_id);
+
+  // Returns true if at least one other channels uses the same ViEEncoder as
+  // channel_id.
+  bool ChannelUsingViEEncoder(int channel_id) const;
+  void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
+
+  // Protects channel_map_ and free_channel_ids_.
+  CriticalSectionWrapper* channel_id_critsect_;
+  int engine_id_;
+  int number_of_cores_;
+
+  // TODO(mflodman) Make part of channel group.
+  ChannelMap channel_map_;
+  bool* free_channel_ids_;
+  int free_channel_ids_size_;
+
+  // List with all channel groups.
+  std::list<ChannelGroup*> channel_groups_;
+
+  // TODO(mflodman) Make part of channel group.
+  // Maps Channel id -> ViEEncoder.
+  EncoderMap vie_encoder_map_;
+  VoEVideoSync* voice_sync_interface_;
+
+  VoiceEngine* voice_engine_;
+  ProcessThread* module_process_thread_;
+  const OverUseDetectorOptions& over_use_detector_options_;
+  RemoteBitrateEstimator::EstimationMode bwe_mode_;
+};
+
+class ViEChannelManagerScoped: private ViEManagerScopedBase {
+ public:
+  explicit ViEChannelManagerScoped(
+      const ViEChannelManager& vie_channel_manager);
+  ViEChannel* Channel(int vie_channel_id) const;
+  ViEEncoder* Encoder(int vie_channel_id) const;
+
+  // Returns true if at least one other channels uses the same ViEEncoder as
+  // channel_id.
+  bool ChannelUsingViEEncoder(int channel_id) const;
+
+  // Returns a list with pointers to all channels using the same encoder as the
+  // channel with |channel_id|, including the one with the specified id.
+  void ChannelsUsingViEEncoder(int channel_id, ChannelList* channels) const;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_VIDEO_ENGINE_VIE_CHANNEL_MANAGER_H_