blob: 4fbd05c6850964824efbe9c195c102cfdfd81a52 [file] [log] [blame]
* 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.
#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 {
// 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 {
explicit GainControlForExperimentalAgc(GainControl* gain_control,
rtc::CriticalSection* crit_capture);
// 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;
GainControl* real_gain_control_;
int volume_;
rtc::CriticalSection* crit_capture_;
} // namespace webrtc