Implement periodic bandwidth probing in application-limited region.

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"
@@ skipping 730 matching lines @@
   RTC_DCHECK_RUN_ON(worker_queue_);
   LOG(LS_INFO) << "VideoSendStreamInternal: " << config_->ToString();
   weak_ptr_ = weak_ptr_factory_.GetWeakPtr();
   module_process_thread_checker_.DetachFromThread();
 
   RTC_DCHECK(!config_->rtp.ssrcs.empty());
   RTC_DCHECK(call_stats_);
   RTC_DCHECK(congestion_controller_);
   RTC_DCHECK(remb_);
 
+  if (config_->periodic_bandwidth_probing)

[philipel, 2016/11/16 14:59:15]

congestion_controller_->EnablePeriodicProbing(config_->periodic_bandwidth_probing);

[Sergey Ulanov, 2016/11/21 09:06:03]

Done.

[philipel, 2016/11/21 12:05:42]

Why do we make an assumption about the default value of ALR probing here? If we
change the default then you wont be able to disable the ALR probing using the
config.

[philipel, 2016/11/22 12:31:37]

Also, PTAL at this comment.

[Sergey Ulanov, 2016/11/22 23:21:00]

Fixed now. Sorry I missed it last time.

+    congestion_controller_->EnablePeriodicProbing(true);
+
   // RTP/RTCP initialization.
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_) {
     congestion_controller_->packet_router()->AddRtpModule(rtp_rtcp);
   }
 
   for (size_t i = 0; i < config_->rtp.extensions.size(); ++i) {
     const std::string& extension = config_->rtp.extensions[i].uri;
     int id = config_->rtp.extensions[i].id;
     // One-byte-extension local identifiers are in the range 1-14 inclusive.
     RTC_DCHECK_GE(id, 1);
@@ skipping 451 matching lines @@
 }
 
 void VideoSendStreamImpl::SetTransportOverhead(
     int transport_overhead_per_packet) {
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
     rtp_rtcp->SetTransportOverhead(transport_overhead_per_packet);
 }
 
 }  // namespace internal
 }  // namespace webrtc