Start documenting the threading model

webrtc/modules/video_coding/video_coding_impl.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.
  */
 
@@ skipping 153 matching lines @@
       VCMReceiveStatisticsCallback* receiveStats);
   int32_t RegisterDecoderTimingCallback(
       VCMDecoderTimingCallback* decoderTiming);
   int32_t RegisterFrameTypeCallback(VCMFrameTypeCallback* frameTypeCallback);
   int32_t RegisterPacketRequestCallback(VCMPacketRequestCallback* callback);
 
   int32_t Decode(uint16_t maxWaitTimeMs);
 
   int32_t Decode(const webrtc::VCMEncodedFrame* frame);
 
+  void PollDecodedFrames();
+
   int32_t ReceiveCodec(VideoCodec* currentReceiveCodec) const;
   VideoCodecType ReceiveCodec() const;
 
   int32_t IncomingPacket(const uint8_t* incomingPayload,
                          size_t payloadLength,
                          const WebRtcRTPHeader& rtpInfo);
   int32_t SetMinimumPlayoutDelay(uint32_t minPlayoutDelayMs);
   int32_t SetRenderDelay(uint32_t timeMS);
   int32_t Delay() const;
   uint32_t DiscardedPackets() const;
@@ skipping 45 matching lines @@
   VCMProcessTimer _receiveStatsTimer;
   VCMProcessTimer _retransmissionTimer;
   VCMProcessTimer _keyRequestTimer;
   QpParser qp_parser_;
   ThreadUnsafeOneTimeEvent first_frame_received_;
 };
 
 }  // namespace vcm
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_