1d34fe979c
BUG=webrtc:4752 R=tkchin@webrtc.org Review URL: https://codereview.webrtc.org/1178843002. Cr-Commit-Position: refs/heads/master@{#9445}
105 lines
2.9 KiB
C++
105 lines
2.9 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 "webrtc/modules/audio_processing/agc/histogram.h"
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#include <stdio.h>
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#include <cmath>
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#include "gtest/gtest.h"
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#include "webrtc/test/testsupport/fileutils.h"
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#include "webrtc/modules/audio_processing/agc/utility.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 HistogramTest : public ::testing::Test {
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protected:
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void RunTest(bool enable_circular_buff,
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const char* filename);
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private:
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void TestClean();
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rtc::scoped_ptr<Histogram> hist_;
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};
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void HistogramTest::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 HistogramTest::RunTest(bool enable_circular_buff, const char* filename) {
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FILE* in_file = fopen(filename, "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(Histogram::Create(buffer_size));
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} else {
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hist_.reset(Histogram::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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int num_reset = 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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num_reset++;
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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 = std::min(audio_content, io.audio_content) *
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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 = std::min(fabs(current_loudness), fabs(io.loudness)) *
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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(HistogramTest, ActiveCircularBuffer) {
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RunTest(true,
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test::ResourcePath("audio_processing/agc/agc_with_circular_buffer",
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"dat").c_str());
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}
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TEST_F(HistogramTest, InactiveCircularBuffer) {
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RunTest(false,
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test::ResourcePath("audio_processing/agc/agc_no_circular_buffer",
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"dat").c_str());
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}
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} // namespace webrtc
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