webrtc_m130/webrtc/modules/audio_processing/aec3/render_signal_analyzer.h
kjellander c8fa692ec4 Update includes for webrtc/{base => rtc_base} rename (1/3)
I used a command like this to update the paths:
perl -pi -e "s/webrtc\/base/webrtc\/rtc_base/g" `find webrtc/rtc_base -name "*.cc" -o -name "*.h"`

The only manual edit is to add an include of webrtc/rtc_base/checks.h in
webrtc/modules/audio_device/android/opensles_common.h, which likely
was needed due to changed include paths due to 'git cl format'.

BUG=webrtc:7634
NOTRY=True
NOPRESUBMIT=True

Review-Url: https://codereview.webrtc.org/2969653002
Cr-Commit-Position: refs/heads/master@{#18871}
2017-06-30 21:02:00 +00:00

55 lines
1.9 KiB
C++

/*
* Copyright (c) 2017 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_AEC3_RENDER_SIGNAL_ANALYZER_H_
#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_SIGNAL_ANALYZER_H_
#include <array>
#include <memory>
#include "webrtc/modules/audio_processing/aec3/aec3_common.h"
#include "webrtc/modules/audio_processing/aec3/render_buffer.h"
#include "webrtc/rtc_base/constructormagic.h"
#include "webrtc/rtc_base/optional.h"
namespace webrtc {
// Provides functionality for analyzing the properties of the render signal.
class RenderSignalAnalyzer {
public:
RenderSignalAnalyzer();
~RenderSignalAnalyzer();
// Updates the render signal analysis with the most recent render signal.
void Update(const RenderBuffer& render_buffer,
const rtc::Optional<size_t>& delay_partitions);
// Returns true if the render signal is poorly exciting.
bool PoorSignalExcitation() const {
RTC_DCHECK_LT(2, narrow_band_counters_.size());
return std::any_of(narrow_band_counters_.begin(),
narrow_band_counters_.end(),
[](size_t a) { return a > 10; });
}
// Zeros the array around regions with narrow bands signal characteristics.
void MaskRegionsAroundNarrowBands(
std::array<float, kFftLengthBy2Plus1>* v) const;
private:
std::array<size_t, kFftLengthBy2 - 1> narrow_band_counters_;
RTC_DISALLOW_COPY_AND_ASSIGN(RenderSignalAnalyzer);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_SIGNAL_ANALYZER_H_