Alessio Bazzica ac1667d128 Reland "RNN VAD: Replace Ooura with PFFFT for the pitch auto correlation."
This reverts commit d38ce9f82402a995289b87e044125847d12eb658.

Reason for revert: land this first, then fix downstream

Original change's description:
> Revert "RNN VAD: Replace Ooura with PFFFT for the pitch auto correlation."
> 
> This reverts commit 8fcd6537f242ffd74154a62dad410e573e2efc4b.
> 
> Reason for revert: broke internal projects.
> 
> Original change's description:
> > RNN VAD: Replace Ooura with PFFFT for the pitch auto correlation.
> > 
> > Bug: webrtc:9577, webrtc:10480
> > Change-Id: I6d58866d48b8eaaa4102551b88d4f55133d1915c
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/130482
> > Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
> > Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#27387}
> 
> TBR=gustaf@webrtc.org,alessiob@webrtc.org
> 
> Change-Id: Ia05057326ebc277f334b13db0bfec9d4442903c2
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:9577, webrtc:10480
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/130369
> Reviewed-by: Qingsi Wang <qingsi@webrtc.org>
> Commit-Queue: Qingsi Wang <qingsi@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27405}

TBR=gustaf@webrtc.org,alessiob@webrtc.org,qingsi@webrtc.org

Change-Id: I345f00d798fb67d0f02bf1e89319dac7f0287485
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:9577, webrtc:10480
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/130516
Reviewed-by: Alessio Bazzica <alessiob@webrtc.org>
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27407}
2019-04-02 06:58:55 +00:00

50 lines
1.7 KiB
C++

/*
* Copyright (c) 2018 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 MODULES_AUDIO_PROCESSING_AGC2_RNN_VAD_PITCH_SEARCH_H_
#define MODULES_AUDIO_PROCESSING_AGC2_RNN_VAD_PITCH_SEARCH_H_
#include <memory>
#include <vector>
#include "api/array_view.h"
#include "modules/audio_processing/agc2/rnn_vad/auto_correlation.h"
#include "modules/audio_processing/agc2/rnn_vad/common.h"
#include "modules/audio_processing/agc2/rnn_vad/pitch_info.h"
#include "modules/audio_processing/agc2/rnn_vad/pitch_search_internal.h"
namespace webrtc {
namespace rnn_vad {
// Pitch estimator.
class PitchEstimator {
public:
PitchEstimator();
PitchEstimator(const PitchEstimator&) = delete;
PitchEstimator& operator=(const PitchEstimator&) = delete;
~PitchEstimator();
// Estimates the pitch period and gain. Returns the pitch estimation data for
// 48 kHz.
PitchInfo Estimate(rtc::ArrayView<const float, kBufSize24kHz> pitch_buf);
private:
PitchInfo last_pitch_48kHz_;
AutoCorrelationCalculator auto_corr_calculator_;
std::vector<float> pitch_buf_decimated_;
rtc::ArrayView<float, kBufSize12kHz> pitch_buf_decimated_view_;
std::vector<float> auto_corr_;
rtc::ArrayView<float, kNumInvertedLags12kHz> auto_corr_view_;
};
} // namespace rnn_vad
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_AGC2_RNN_VAD_PITCH_SEARCH_H_