blob: 2459ce3b4b7e943412d2d6c7608a1be24edef48c [file] [log] [blame]
/*
* Copyright (c) 2012 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_IMPL_H_
#define WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_IMPL_H_
#include <memory>
#include <vector>
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/criticalsection.h"
#include "webrtc/base/swap_queue.h"
#include "webrtc/base/thread_annotations.h"
#include "webrtc/modules/audio_processing/include/audio_processing.h"
#include "webrtc/modules/audio_processing/render_queue_item_verifier.h"
namespace webrtc {
class AudioBuffer;
class GainControlImpl : public GainControl {
public:
GainControlImpl(rtc::CriticalSection* crit_render,
rtc::CriticalSection* crit_capture);
~GainControlImpl() override;
int ProcessRenderAudio(AudioBuffer* audio);
int AnalyzeCaptureAudio(AudioBuffer* audio);
int ProcessCaptureAudio(AudioBuffer* audio, bool stream_has_echo);
void Initialize(size_t num_proc_channels, int sample_rate_hz);
// GainControl implementation.
bool is_enabled() const override;
int stream_analog_level() override;
bool is_limiter_enabled() const override;
Mode mode() const override;
// Checks whether the module is enabled. Must only be
// called from the render side of APM as otherwise
// deadlocks may occur.
bool is_enabled_render_side_query() const;
// Reads render side data that has been queued on the render call.
void ReadQueuedRenderData();
int compression_gain_db() const override;
private:
class GainController;
// GainControl implementation.
int Enable(bool enable) override;
int set_stream_analog_level(int level) override;
int set_mode(Mode mode) override;
int set_target_level_dbfs(int level) override;
int target_level_dbfs() const override;
int set_compression_gain_db(int gain) override;
int enable_limiter(bool enable) 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;
void AllocateRenderQueue();
int Configure();
rtc::CriticalSection* const crit_render_ ACQUIRED_BEFORE(crit_capture_);
rtc::CriticalSection* const crit_capture_;
bool enabled_ = false;
Mode mode_ GUARDED_BY(crit_capture_);
int minimum_capture_level_ GUARDED_BY(crit_capture_);
int maximum_capture_level_ GUARDED_BY(crit_capture_);
bool limiter_enabled_ GUARDED_BY(crit_capture_);
int target_level_dbfs_ GUARDED_BY(crit_capture_);
int compression_gain_db_ GUARDED_BY(crit_capture_);
int analog_capture_level_ GUARDED_BY(crit_capture_);
bool was_analog_level_set_ GUARDED_BY(crit_capture_);
bool stream_is_saturated_ GUARDED_BY(crit_capture_);
size_t render_queue_element_max_size_ GUARDED_BY(crit_render_)
GUARDED_BY(crit_capture_);
std::vector<int16_t> render_queue_buffer_ GUARDED_BY(crit_render_);
std::vector<int16_t> capture_queue_buffer_ GUARDED_BY(crit_capture_);
// Lock protection not needed.
std::unique_ptr<
SwapQueue<std::vector<int16_t>, RenderQueueItemVerifier<int16_t>>>
render_signal_queue_;
std::vector<std::unique_ptr<GainController>> gain_controllers_;
rtc::Optional<size_t> num_proc_channels_ GUARDED_BY(crit_capture_);
rtc::Optional<int> sample_rate_hz_ GUARDED_BY(crit_capture_);
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(GainControlImpl);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_GAIN_CONTROL_IMPL_H_