Added offline data logpoints and logging functionality to the gain controller

webrtc/modules/audio_processing/gain_control_for_experimental_agc.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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_FOR_EXPERIMENTAL_AGC_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_FOR_EXPERIMENTAL_AGC_H_
 
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/modules/audio_processing/agc/agc_manager_direct.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 
 namespace webrtc {
 
+class ApmDataDumper;
+
 // This class has two main purposes:
 //
 // 1) It is returned instead of the real GainControl after the new AGC has been
 //    enabled in order to prevent an outside user from overriding compression
 //    settings. It doesn't do anything in its implementation, except for
 //    delegating the const methods and Enable calls to the real GainControl, so
 //    AGC can still be disabled.
 //
 // 2) It is injected into AgcManagerDirect and implements volume callbacks for
 //    getting and setting the volume level. It just caches this value to be used
 //    in VoiceEngine later.
 class GainControlForExperimentalAgc : public GainControl,
                                       public VolumeCallbacks {
  public:
-  explicit GainControlForExperimentalAgc(GainControl* gain_control,
-                                         rtc::CriticalSection* crit_capture);
+  GainControlForExperimentalAgc(GainControl* gain_control,
+                                rtc::CriticalSection* crit_capture);
+  ~GainControlForExperimentalAgc() override;

[peah-webrtc, 2016/10/28 08:37:50]

This was required by the compiler as this CL adds dynamically allocated data.

 
   // GainControl implementation.
   int Enable(bool enable) override;
   bool is_enabled() const override;
   int set_stream_analog_level(int level) override;
   int stream_analog_level() override;
   int set_mode(Mode mode) override;
   Mode mode() const override;
   int set_target_level_dbfs(int level) override;
   int target_level_dbfs() const override;
   int set_compression_gain_db(int gain) override;
   int compression_gain_db() const override;
   int enable_limiter(bool enable) override;
   bool is_limiter_enabled() const override;
   int set_analog_level_limits(int minimum, int maximum) override;
   int analog_level_minimum() const override;
   int analog_level_maximum() const override;
   bool stream_is_saturated() const override;
 
   // VolumeCallbacks implementation.
   void SetMicVolume(int volume) override;
   int GetMicVolume() override;
 
+  void Initialize();
+
  private:
+  std::unique_ptr<ApmDataDumper> data_dumper_;
   GainControl* real_gain_control_;
   int volume_;
   rtc::CriticalSection* crit_capture_;
-  RTC_DISALLOW_COPY_AND_ASSIGN(GainControlForExperimentalAgc);
+  static int instance_counter_;
+  RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(GainControlForExperimentalAgc);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_FOR_EXPERIMENTAL_AGC_H_