Add periodic logging of video stats.

webrtc/call/call.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.
  */
 
@@ skipping 183 matching lines @@
   std::map<std::string, rtc::NetworkRoute> network_routes_;
 
   VieRemb remb_;
   const std::unique_ptr<CongestionController> congestion_controller_;
   const std::unique_ptr<SendDelayStats> video_send_delay_stats_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(Call);
 };
 }  // namespace internal
 
+std::string Call::Stats::ToString(int64_t time_ms) const {
+  std::stringstream ss;
+  ss << "Call stats:" << time_ms << ", {";
+  ss << "send_bw_bps:" << send_bandwidth_bps << ", ";
+  ss << "recv_bw_bps:" << recv_bandwidth_bps << ", ";
+  ss << "max_pad_bps:" << max_padding_bitrate_bps << ", ";
+  ss << "pacer_delay_ms:" << pacer_delay_ms << ", ";
+  ss << "rtt_ms:" << rtt_ms;
+  ss << '}';
+  return ss.str();
+}
+
 Call* Call::Create(const Call::Config& config) {
   return new internal::Call(config);
 }
 
 namespace internal {
 
 Call::Call(const Call::Config& config)
     : clock_(Clock::GetRealTimeClock()),
       num_cpu_cores_(CpuInfo::DetectNumberOfCores()),
       module_process_thread_(ProcessThread::Create("ModuleProcessThread")),
@@ skipping 663 matching lines @@
   // thread. Then this check can be enabled.
   // RTC_DCHECK(!configuration_thread_checker_.CalledOnValidThread());
   if (RtpHeaderParser::IsRtcp(packet, length))
     return DeliverRtcp(media_type, packet, length);
 
   return DeliverRtp(media_type, packet, length, packet_time);
 }
 
 }  // namespace internal
 }  // namespace webrtc