commit e36e8bbf6db70fb3805a73b6a3e0ec499a14e784
author Alex Loiko <aleloi@webrtc.org> Fri Feb 16 11:54:07 2018 +0100
committer Commit Bot <commit-bot@chromium.org> Fri Feb 16 10:56:38 2018 +0000
tree e0e9cc59c140b8a48a208a92e3cd3273245b4adf
parent 6df09f6f6a7daf5b6708081f1fb66e711186a306

Add FixedGainController and move GainController2 in APM.

The FixedGainController (FGC) applies a fixed gain. It will also
control the limiter. The limiter will be landed over the next several
CLs.

The GainController2 is a 'private submodule' of APM. It will control
the new automatic gain controller (AGC). It controls the AGC through
Initialize() and ApplyConfig().

This CL contains

* build changes to make modules/audio_processing/agc2 an independent
  target

* a new MutableFloatAudioFrame which is the audio interface between
  AGC2 and APM

* move of the fixed gain application from GainController2 to
  FixedGainController.

If you are a googler, there is more information in this doc:
https://docs.google.com/document/d/1RV2Doet3MZtUPAHVva61Vjo20iyd1bmmm3aR8znWpzo/edit#

Bug: webrtc:7949
Change-Id: Ief95cbbce83c3aafe54638fd2ab881c9fb8bdc3a
Reviewed-on: https://webrtc-review.googlesource.com/50440
Commit-Queue: Alex Loiko <aleloi@webrtc.org>
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22046}

modules/audio_processing/audio_processing_impl.cc

diff --git a/modules/audio_processing/audio_processing_impl.cc b/modules/audio_processing/audio_processing_impl.cc
index 6275726..a9e6b05 100644
--- a/modules/audio_processing/audio_processing_impl.cc
+++ b/modules/audio_processing/audio_processing_impl.cc
@@ -20,7 +20,6 @@
 #include "common_audio/signal_processing/include/signal_processing_library.h"
 #include "modules/audio_processing/aec/aec_core.h"
 #include "modules/audio_processing/agc/agc_manager_direct.h"
-#include "modules/audio_processing/agc2/gain_controller2.h"
 #include "modules/audio_processing/audio_buffer.h"
 #include "modules/audio_processing/beamformer/nonlinear_beamformer.h"
 #include "modules/audio_processing/common.h"
@@ -28,6 +27,7 @@
 #include "modules/audio_processing/echo_control_mobile_impl.h"
 #include "modules/audio_processing/gain_control_for_experimental_agc.h"
 #include "modules/audio_processing/gain_control_impl.h"
+#include "modules/audio_processing/gain_controller2.h"
 #include "modules/audio_processing/logging/apm_data_dumper.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/logging.h"
@@ -1425,7 +1425,7 @@
     const size_t num_channels =
         formats_.api_format.reverse_input_stream().num_channels();
     aec_dump_->WriteRenderStreamMessage(
-        FloatAudioFrame(src, num_channels, channel_size));
+        AudioFrameView<const float>(src, num_channels, channel_size));
   }
   render_.render_audio->CopyFrom(src,
                                  formats_.api_format.reverse_input_stream());
@@ -1993,7 +1993,7 @@
   const size_t channel_size = formats_.api_format.input_stream().num_frames();
   const size_t num_channels = formats_.api_format.input_stream().num_channels();
   aec_dump_->AddCaptureStreamInput(
-      FloatAudioFrame(src, num_channels, channel_size));
+      AudioFrameView<const float>(src, num_channels, channel_size));
   RecordAudioProcessingState();
 }
 
@@ -2013,8 +2013,8 @@
   const size_t channel_size = formats_.api_format.output_stream().num_frames();
   const size_t num_channels =
       formats_.api_format.output_stream().num_channels();
-  aec_dump_->AddCaptureStreamOutput(
-      FloatAudioFrame(processed_capture_stream, num_channels, channel_size));
+  aec_dump_->AddCaptureStreamOutput(AudioFrameView<const float>(
+      processed_capture_stream, num_channels, channel_size));
   aec_dump_->WriteCaptureStreamMessage();
 }