Update to current webrtc library

This is from the upstream library commit id
3326535126e435f1ba647885ce43a8f0f3d317eb, corresponding to Chromium
88.0.4290.1.

webrtc/modules/audio_processing/agc2/rnn_vad/test_utils.cc

@@ -0,0 +1,129 @@
+/*
+ *  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.
+ */
+
+#include "modules/audio_processing/agc2/rnn_vad/test_utils.h"
+
+#include <memory>
+
+#include "rtc_base/checks.h"
+#include "rtc_base/system/arch.h"
+#include "system_wrappers/include/cpu_features_wrapper.h"
+#include "test/gtest.h"
+#include "test/testsupport/file_utils.h"
+
+namespace webrtc {
+namespace rnn_vad {
+namespace test {
+namespace {
+
+using ReaderPairType =
+    std::pair<std::unique_ptr<BinaryFileReader<float>>, const size_t>;
+
+}  // namespace
+
+using webrtc::test::ResourcePath;
+
+void ExpectEqualFloatArray(rtc::ArrayView<const float> expected,
+                           rtc::ArrayView<const float> computed) {
+  ASSERT_EQ(expected.size(), computed.size());
+  for (size_t i = 0; i < expected.size(); ++i) {
+    SCOPED_TRACE(i);
+    EXPECT_FLOAT_EQ(expected[i], computed[i]);
+  }
+}
+
+void ExpectNearAbsolute(rtc::ArrayView<const float> expected,
+                        rtc::ArrayView<const float> computed,
+                        float tolerance) {
+  ASSERT_EQ(expected.size(), computed.size());
+  for (size_t i = 0; i < expected.size(); ++i) {
+    SCOPED_TRACE(i);
+    EXPECT_NEAR(expected[i], computed[i], tolerance);
+  }
+}
+
+std::pair<std::unique_ptr<BinaryFileReader<int16_t, float>>, const size_t>
+CreatePcmSamplesReader(const size_t frame_length) {
+  auto ptr = std::make_unique<BinaryFileReader<int16_t, float>>(
+      test::ResourcePath("audio_processing/agc2/rnn_vad/samples", "pcm"),
+      frame_length);
+  // The last incomplete frame is ignored.
+  return {std::move(ptr), ptr->data_length() / frame_length};
+}
+
+ReaderPairType CreatePitchBuffer24kHzReader() {
+  constexpr size_t cols = 864;
+  auto ptr = std::make_unique<BinaryFileReader<float>>(
+      ResourcePath("audio_processing/agc2/rnn_vad/pitch_buf_24k", "dat"), cols);
+  return {std::move(ptr), rtc::CheckedDivExact(ptr->data_length(), cols)};
+}
+
+ReaderPairType CreateLpResidualAndPitchPeriodGainReader() {
+  constexpr size_t num_lp_residual_coeffs = 864;
+  auto ptr = std::make_unique<BinaryFileReader<float>>(
+      ResourcePath("audio_processing/agc2/rnn_vad/pitch_lp_res", "dat"),
+      num_lp_residual_coeffs);
+  return {std::move(ptr),
+          rtc::CheckedDivExact(ptr->data_length(), 2 + num_lp_residual_coeffs)};
+}
+
+ReaderPairType CreateVadProbsReader() {
+  auto ptr = std::make_unique<BinaryFileReader<float>>(
+      test::ResourcePath("audio_processing/agc2/rnn_vad/vad_prob", "dat"));
+  return {std::move(ptr), ptr->data_length()};
+}
+
+PitchTestData::PitchTestData() {
+  BinaryFileReader<float> test_data_reader(
+      ResourcePath("audio_processing/agc2/rnn_vad/pitch_search_int", "dat"),
+      static_cast<size_t>(1396));
+  test_data_reader.ReadChunk(test_data_);
+}
+
+PitchTestData::~PitchTestData() = default;
+
+rtc::ArrayView<const float, kBufSize24kHz> PitchTestData::GetPitchBufView()
+    const {
+  return {test_data_.data(), kBufSize24kHz};
+}
+
+rtc::ArrayView<const float, kNumPitchBufSquareEnergies>
+PitchTestData::GetPitchBufSquareEnergiesView() const {
+  return {test_data_.data() + kBufSize24kHz, kNumPitchBufSquareEnergies};
+}
+
+rtc::ArrayView<const float, kNumPitchBufAutoCorrCoeffs>
+PitchTestData::GetPitchBufAutoCorrCoeffsView() const {
+  return {test_data_.data() + kBufSize24kHz + kNumPitchBufSquareEnergies,
+          kNumPitchBufAutoCorrCoeffs};
+}
+
+bool IsOptimizationAvailable(Optimization optimization) {
+  switch (optimization) {
+    case Optimization::kSse2:
+#if defined(WEBRTC_ARCH_X86_FAMILY)
+      return GetCPUInfo(kSSE2) != 0;
+#else
+      return false;
+#endif
+    case Optimization::kNeon:
+#if defined(WEBRTC_HAS_NEON)
+      return true;
+#else
+      return false;
+#endif
+    case Optimization::kNone:
+      return true;
+  }
+}
+
+}  // namespace test
+}  // namespace rnn_vad
+}  // namespace webrtc