Extract common simulcast logic from VP8 wrapper and simulcast adapter

webrtc/video/video_send_stream.cc

 /*
  *  Copyright (c) 2013 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.
  */
 
 #include "webrtc/video/video_send_stream.h"
 
 #include <algorithm>
 #include <sstream>
 #include <string>
 #include <vector>
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/trace_event.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 #include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
 #include "webrtc/modules/congestion_controller/include/congestion_controller.h"
 #include "webrtc/modules/pacing/packet_router.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp.h"
+#include "webrtc/modules/video_coding/utility/simulcast_state.h"
 #include "webrtc/modules/utility/include/process_thread.h"
 #include "webrtc/video/call_stats.h"
 #include "webrtc/video/video_capture_input.h"
 #include "webrtc/video/vie_remb.h"
 #include "webrtc/video_send_stream.h"
 
 namespace webrtc {
 
 class RtcpIntraFrameObserver;
 class TransportFeedbackObserver;
@@ skipping 561 matching lines @@
   LOG(LS_INFO) << "(Re)configureVideoEncoder: " << config.ToString();
   RTC_DCHECK_GE(config_.rtp.ssrcs.size(), config.streams.size());
   VideoCodec video_codec = VideoEncoderConfigToVideoCodec(
       config, config_.encoder_settings.payload_name,
       config_.encoder_settings.payload_type);
   {
     rtc::CritScope lock(&encoder_settings_crit_);
     pending_encoder_settings_ = rtc::Optional<EncoderSettings>(
         {video_codec, config.min_transmit_bitrate_bps, config.streams});
   }
+  payload_router_.UpdateSimulcastState(SimulcastState(video_codec));
   encoder_wakeup_event_.Set();
 }
 
 VideoSendStream::Stats VideoSendStream::GetStats() {
   return stats_proxy_.GetStats();
 }
 
 void VideoSendStream::OveruseDetected() {
   if (config_.overuse_callback)
     config_.overuse_callback->OnLoadUpdate(LoadObserver::kOveruse);
@@ skipping 157 matching lines @@
                           &module_nack_rate);
     *sent_video_rate_bps += module_video_rate;
     *sent_nack_rate_bps += module_nack_rate;
     *sent_fec_rate_bps += module_fec_rate;
   }
   return 0;
 }
 
 }  // namespace internal
 }  // namespace webrtc