NetEq: Implement logging of Delayed Packet Outage Events

webrtc/modules/audio_coding/neteq/statistics_calculator.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/modules/audio_coding/neteq/statistics_calculator.h"
 
 #include <assert.h>
 #include <string.h>  // memset
 
 #include "webrtc/modules/audio_coding/neteq/decision_logic.h"
 #include "webrtc/modules/audio_coding/neteq/delay_manager.h"
+#include "webrtc/system_wrappers/interface/metrics.h"
 
 namespace webrtc {
 
 StatisticsCalculator::StatisticsCalculator()
     : preemptive_samples_(0),
       accelerate_samples_(0),
       added_zero_samples_(0),
       expanded_speech_samples_(0),
       expanded_noise_samples_(0),
       discarded_packets_(0),
@@ skipping 61 matching lines @@
     lost_timestamps_ = 0;
     timestamps_since_last_report_ = 0;
     discarded_packets_ = 0;
   }
 }
 
 void StatisticsCalculator::SecondaryDecodedSamples(int num_samples) {
   secondary_decoded_samples_ += num_samples;
 }
 
+void StatisticsCalculator::LogDelayedPacketOutageEvent(int outage_duration_ms) {
+  RTC_HISTOGRAM_COUNTS("WebRTC.Audio.DelayedPacketOutageEventMs",
+                       outage_duration_ms, 1 /* min */, 2000 /* max */,
+                       100 /* bucket count */);
+}
+
 void StatisticsCalculator::StoreWaitingTime(int waiting_time_ms) {
   assert(next_waiting_time_index_ < kLenWaitingTimes);
   waiting_times_[next_waiting_time_index_] = waiting_time_ms;
   next_waiting_time_index_++;
   if (next_waiting_time_index_ >= kLenWaitingTimes) {
     next_waiting_time_index_ = 0;
   }
   if (len_waiting_times_ < kLenWaitingTimes) {
     len_waiting_times_++;
   }
@@ skipping 67 matching lines @@
     // Ratio must be smaller than 1 in Q14.
     assert((numerator << 14) / denominator < (1 << 14));
     return static_cast<uint16_t>((numerator << 14) / denominator);
   } else {
     // Will not produce a ratio larger than 1, since this is probably an error.
     return 1 << 14;
   }
 }
 
 }  // namespace webrtc