media/webrtc/trunk/src/video_engine/vie_sync_module.h

   1 /*
   2  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11 // ViESyncModule is responsible for synchronization audio and video for a given
  12 // VoE and ViE channel couple.
  13
  14 #ifndef WEBRTC_VIDEO_ENGINE_VIE_SYNC_MODULE_H_
  15 #define WEBRTC_VIDEO_ENGINE_VIE_SYNC_MODULE_H_
  16
  17 #include "modules/interface/module.h"
  18 #include "system_wrappers/interface/scoped_ptr.h"
  19 #include "system_wrappers/interface/tick_util.h"
  20
  21 namespace webrtc {
  22
  23 class CriticalSectionWrapper;
  24 class RtpRtcp;
  25 class StreamSynchronization;
  26 class VideoCodingModule;
  27 class VoEVideoSync;
  28
  29 class ViESyncModule : public Module {
  30  public:
  31   ViESyncModule(const int32_t channel_id, VideoCodingModule* vcm);
  32   ~ViESyncModule();
  33
  34   int ConfigureSync(int voe_channel_id,
  35                     VoEVideoSync* voe_sync_interface,
  36                     RtpRtcp* video_rtcp_module);
  37
  38   int VoiceChannel();
  39
  40   // Implements Module.
  41   virtual WebRtc_Word32 TimeUntilNextProcess();
  42   virtual WebRtc_Word32 Process();
  43
  44  private:
  45   scoped_ptr<CriticalSectionWrapper> data_cs_;
  46   const int32_t channel_id_;
  47   VideoCodingModule* vcm_;
  48   RtpRtcp* video_rtcp_module_;
  49   int voe_channel_id_;
  50   VoEVideoSync* voe_sync_interface_;
  51   TickTime last_sync_time_;
  52   scoped_ptr<StreamSynchronization> sync_;
  53 };
  54
  55 }  // namespace webrtc
  56
  57 #endif  // WEBRTC_VIDEO_ENGINE_VIE_SYNC_MODULE_H_