Add new ANA stats to GetStats() to count the number of actions taken by each controller.

webrtc/modules/audio_coding/acm2/audio_coding_module.cc

 /*
  *  Copyright (c) 2012 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 186 matching lines @@
   int UnregisterReceiveCodec(uint8_t payload_type) override;
 
   int EnableNack(size_t max_nack_list_size) override;
 
   void DisableNack() override;
 
   std::vector<uint16_t> GetNackList(int64_t round_trip_time_ms) const override;
 
   void GetDecodingCallStatistics(AudioDecodingCallStats* stats) const override;
 
+  ANAStats GetANAStats() const override;
+
  private:
   struct InputData {
     uint32_t input_timestamp;
     const int16_t* audio;
     size_t length_per_channel;
     size_t audio_channel;
     // If a re-mix is required (up or down), this buffer will store a re-mixed
     // version of the input.
     int16_t buffer[WEBRTC_10MS_PCM_AUDIO];
   };
@@ skipping 1049 matching lines @@
 
 int AudioCodingModuleImpl::LeastRequiredDelayMs() const {
   return receiver_.LeastRequiredDelayMs();
 }
 
 void AudioCodingModuleImpl::GetDecodingCallStatistics(
       AudioDecodingCallStats* call_stats) const {
   receiver_.GetDecodingCallStatistics(call_stats);
 }
 
+ANAStats AudioCodingModuleImpl::GetANAStats() const {
+  rtc::CritScope lock(&acm_crit_sect_);
+  if (encoder_stack_)
+    return encoder_stack_->GetANAStats();
+  // If no encoder is set, return default stats.
+  return ANAStats();
+}
+
 }  // namespace
 
 AudioCodingModule::Config::Config()
     : id(0), neteq_config(), clock(Clock::GetRealTimeClock()) {
   // Post-decode VAD is disabled by default in NetEq, however, Audio
   // Conference Mixer relies on VAD decisions and fails without them.
   neteq_config.enable_post_decode_vad = true;
 }
 
 AudioCodingModule::Config::Config(const Config&) = default;
@@ skipping 77 matching lines @@
 
 // Checks the validity of the parameters of the given codec
 bool AudioCodingModule::IsCodecValid(const CodecInst& codec) {
   bool valid = acm2::RentACodec::IsCodecValid(codec);
   if (!valid)
     LOG(LS_ERROR) << "Invalid codec setting";
   return valid;
 }
 
 }  // namespace webrtc