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f3592cb2a2
Bug: webrtc:13579 Change-Id: Idb05a64cfd16aed68d40cd427a6b516caa5e2077 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269387 Reviewed-by: Ivo Creusen <ivoc@webrtc.org> Commit-Queue: Ali Tofigh <alito@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37800}
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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// Use CreateHistUnittestFile.m to generate the input file.
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#include "modules/audio_processing/agc/loudness_histogram.h"
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#include <stdio.h>
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#include <algorithm>
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#include <cmath>
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#include <memory>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "modules/audio_processing/agc/utility.h"
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#include "test/gtest.h"
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#include "test/testsupport/file_utils.h"
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namespace webrtc {
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struct InputOutput {
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double rms;
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double activity_probability;
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double audio_content;
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double loudness;
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};
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const double kRelativeErrTol = 1e-10;
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class LoudnessHistogramTest : public ::testing::Test {
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protected:
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void RunTest(bool enable_circular_buff, absl::string_view filename);
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private:
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void TestClean();
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std::unique_ptr<LoudnessHistogram> hist_;
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};
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void LoudnessHistogramTest::TestClean() {
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EXPECT_EQ(hist_->CurrentRms(), 7.59621091765857e-02);
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EXPECT_EQ(hist_->AudioContent(), 0);
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EXPECT_EQ(hist_->num_updates(), 0);
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}
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void LoudnessHistogramTest::RunTest(bool enable_circular_buff,
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absl::string_view filename) {
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FILE* in_file = fopen(std::string(filename).c_str(), "rb");
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ASSERT_TRUE(in_file != NULL);
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if (enable_circular_buff) {
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int buffer_size;
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EXPECT_EQ(fread(&buffer_size, sizeof(buffer_size), 1, in_file), 1u);
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hist_.reset(LoudnessHistogram::Create(buffer_size));
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} else {
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hist_.reset(LoudnessHistogram::Create());
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}
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TestClean();
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InputOutput io;
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int num_updates = 0;
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while (fread(&io, sizeof(InputOutput), 1, in_file) == 1) {
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if (io.rms < 0) {
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// We have to reset.
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hist_->Reset();
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TestClean();
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num_updates = 0;
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// Read the next chunk of input.
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if (fread(&io, sizeof(InputOutput), 1, in_file) != 1)
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break;
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}
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hist_->Update(io.rms, io.activity_probability);
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num_updates++;
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EXPECT_EQ(hist_->num_updates(), num_updates);
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double audio_content = hist_->AudioContent();
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double abs_err =
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std::min(audio_content, io.audio_content) * kRelativeErrTol;
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ASSERT_NEAR(audio_content, io.audio_content, abs_err);
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double current_loudness = Linear2Loudness(hist_->CurrentRms());
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abs_err =
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std::min(fabs(current_loudness), fabs(io.loudness)) * kRelativeErrTol;
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ASSERT_NEAR(current_loudness, io.loudness, abs_err);
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}
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fclose(in_file);
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}
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TEST_F(LoudnessHistogramTest, ActiveCircularBuffer) {
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RunTest(true, test::ResourcePath(
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"audio_processing/agc/agc_with_circular_buffer", "dat")
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.c_str());
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}
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TEST_F(LoudnessHistogramTest, InactiveCircularBuffer) {
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RunTest(false, test::ResourcePath(
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"audio_processing/agc/agc_no_circular_buffer", "dat")
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.c_str());
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}
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} // namespace webrtc
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