Adds function for computing moving average to visualization tool.

webrtc/tools/event_log_visualizer/analyzer.h

 /*
  *  Copyright (c) 2016 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 11 matching lines @@
 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
 #include "webrtc/tools/event_log_visualizer/plot_base.h"
 
 namespace webrtc {
 namespace plotting {
 
 struct LoggedRtpPacket {
   LoggedRtpPacket(uint64_t timestamp, RTPHeader header, size_t total_length)
       : timestamp(timestamp), header(header), total_length(total_length) {}
   uint64_t timestamp;
+  // TODO(terelius): This allocates space for 15 CSRCs even if none are used.
   RTPHeader header;
   size_t total_length;
 };
 
 struct LoggedRtcpPacket {
   LoggedRtcpPacket(uint64_t timestamp,
                    RTCPPacketType rtcp_type,
                    std::unique_ptr<rtcp::RtcpPacket> rtcp_packet)
       : timestamp(timestamp), type(rtcp_type), packet(std::move(rtcp_packet)) {}
   uint64_t timestamp;
@@ skipping 99 matching lines @@
   uint64_t end_time_;
 
   // Duration (in seconds) of log file.
   float call_duration_s_;
 };
 
 }  // namespace plotting
 }  // namespace webrtc
 
 #endif  // WEBRTC_TOOLS_EVENT_LOG_VISUALIZER_ANALYZER_H_