This CL introduces a new APM sub-module named AGC2 that does not use the band
split domain and only implements floating point operations (to avoid spectral
leakage issues and unnecessary complexity).
The goal of this CL is adding the new sub-module into APM without providing an
implementation that could replace the existing gain control modules. The focus
is in fact on initialization, reset, and configuration of AGC2.
The module itself only applies a hard-coded gain value. This behavior will
change in the coming CLs.
BUG=webrtc:7494
Review-Url: https://codereview.webrtc.org/2848593002
Cr-Commit-Position: refs/heads/master@{#18222}
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.h b/webrtc/modules/audio_processing/audio_processing_impl.h
index f637e42..7fc81f8 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.h
+++ b/webrtc/modules/audio_processing/audio_processing_impl.h
@@ -41,9 +41,7 @@
namespace webrtc {
-class AgcManagerDirect;
class AudioConverter;
-
class NonlinearBeamformer;
class AudioProcessingImpl : public AudioProcessing {
@@ -167,6 +165,7 @@
bool intelligibility_enhancer_enabled,
bool beamformer_enabled,
bool adaptive_gain_controller_enabled,
+ bool gain_controller2_enabled,
bool level_controller_enabled,
bool echo_canceller3_enabled,
bool voice_activity_detector_enabled,
@@ -186,6 +185,7 @@
bool intelligibility_enhancer_enabled_ = false;
bool beamformer_enabled_ = false;
bool adaptive_gain_controller_enabled_ = false;
+ bool gain_controller2_enabled_ = false;
bool level_controller_enabled_ = false;
bool echo_canceller3_enabled_ = false;
bool level_estimator_enabled_ = false;
@@ -254,6 +254,7 @@
EXCLUSIVE_LOCKS_REQUIRED(crit_render_, crit_capture_);
void InitializeLowCutFilter() EXCLUSIVE_LOCKS_REQUIRED(crit_capture_);
void InitializeEchoCanceller3() EXCLUSIVE_LOCKS_REQUIRED(crit_capture_);
+ void InitializeGainController2();
void EmptyQueuedRenderAudio();
void AllocateRenderQueue()
@@ -390,6 +391,7 @@
bool intelligibility_enabled;
bool level_controller_enabled = false;
bool echo_canceller3_enabled = false;
+ bool gain_controller2_enabled = false;
} capture_nonlocked_;
struct ApmRenderState {