Added functionality for specifying the initial signal level to use for the gain estimation in the l…

webrtc/modules/audio_processing/level_controller/level_controller.h

Index: webrtc/modules/audio_processing/level_controller/level_controller.h
diff --git a/webrtc/modules/audio_processing/level_controller/level_controller.h b/webrtc/modules/audio_processing/level_controller/level_controller.h
index 3d203f908d53b9f564cc9f6ef2aa9a68b3e19f1e..3fb5c6da99791dcbe39a692d65951f2935d43575 100644
--- a/webrtc/modules/audio_processing/level_controller/level_controller.h
+++ b/webrtc/modules/audio_processing/level_controller/level_controller.h
@@ -37,6 +37,7 @@ class LevelController {
   void Initialize(int sample_rate_hz);
   void Process(AudioBuffer* audio);
   float GetLastGain() { return last_gain_; }
+  void SetInitialLevel(float level);
 
  private:
   class Metrics {
@@ -71,6 +72,7 @@ class LevelController {
   float dc_level_[2];
   float dc_forgetting_factor_;
   float last_gain_;
+  bool gain_jumpstart_ = false;

[hlundin-webrtc, 2016/08/18 12:58:12]

Naming: the method parameter is called jump_start_gain, while this is not.
Consider aligning the naming.

[peah-webrtc, 2016/08/18 17:02:58]

Good point!
Done.

 
   RTC_DISALLOW_COPY_AND_ASSIGN(LevelController);
 };