chromium/third_party/webrtc/modules/audio_processing/agc2/rnn_vad/rnn_fc.cc

/*
 *  Copyright (c) 2020 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 "modules/audio_processing/agc2/rnn_vad/rnn_fc.h"

#include <algorithm>
#include <numeric>

#include "rtc_base/checks.h"
#include "rtc_base/numerics/safe_conversions.h"
#include "third_party/rnnoise/src/rnn_activations.h"
#include "third_party/rnnoise/src/rnn_vad_weights.h"

namespace webrtc {
namespace rnn_vad {
namespace {

std::vector<float> GetScaledParams(rtc::ArrayView<const int8_t> params) { … }

// TODO(bugs.chromium.org/10480): Hard-code optimized layout and remove this
// function to improve setup time.
// Casts and scales `weights` and re-arranges the layout.
std::vector<float> PreprocessWeights(rtc::ArrayView<const int8_t> weights,
                                     int output_size) { … }

rtc::FunctionView<float(float)> GetActivationFunction(
    ActivationFunction activation_function) { … }

}  // namespace

FullyConnectedLayer::FullyConnectedLayer(
    const int input_size,
    const int output_size,
    const rtc::ArrayView<const int8_t> bias,
    const rtc::ArrayView<const int8_t> weights,
    ActivationFunction activation_function,
    const AvailableCpuFeatures& cpu_features,
    absl::string_view layer_name)
    : … { … }

FullyConnectedLayer::~FullyConnectedLayer() = default;

void FullyConnectedLayer::ComputeOutput(rtc::ArrayView<const float> input) { … }

}  // namespace rnn_vad
}  // namespace webrtc