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76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
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/*
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* Copyright (c) 2014 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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#include "webrtc/modules/audio_coding/neteq/audio_classifier.h"
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include "gtest/gtest.h"
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#include "webrtc/test/testsupport/fileutils.h"
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namespace webrtc {
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static const size_t kFrameSize = 960;
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TEST(AudioClassifierTest, AllZeroInput) {
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int16_t in_mono[kFrameSize] = {0};
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// Test all-zero vectors and let the classifier converge from its default
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// to the expected value.
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AudioClassifier zero_classifier;
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for (int i = 0; i < 100; ++i) {
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zero_classifier.Analysis(in_mono, kFrameSize, 1);
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}
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EXPECT_TRUE(zero_classifier.is_music());
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}
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void RunAnalysisTest(const std::string& audio_filename,
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const std::string& data_filename,
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size_t channels) {
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AudioClassifier classifier;
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scoped_ptr<int16_t[]> in(new int16_t[channels * kFrameSize]);
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bool is_music_ref;
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FILE* audio_file = fopen(audio_filename.c_str(), "rb");
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ASSERT_TRUE(audio_file != NULL) << "Failed to open file " << audio_filename
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<< std::endl;
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FILE* data_file = fopen(data_filename.c_str(), "rb");
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ASSERT_TRUE(audio_file != NULL) << "Failed to open file " << audio_filename
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<< std::endl;
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while (fread(in.get(), sizeof(int16_t), channels * kFrameSize, audio_file) ==
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channels * kFrameSize) {
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bool is_music =
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classifier.Analysis(in.get(), channels * kFrameSize, channels);
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EXPECT_EQ(is_music, classifier.is_music());
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ASSERT_EQ(1u, fread(&is_music_ref, sizeof(is_music_ref), 1, data_file));
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EXPECT_EQ(is_music_ref, is_music);
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}
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fclose(audio_file);
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fclose(data_file);
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}
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TEST(AudioClassifierTest, DoAnalysisMono) {
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RunAnalysisTest(test::ResourcePath("short_mixed_mono_48", "pcm"),
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test::ResourcePath("short_mixed_mono_48", "dat"),
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1);
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}
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TEST(AudioClassifierTest, DoAnalysisStereo) {
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RunAnalysisTest(test::ResourcePath("short_mixed_stereo_48", "pcm"),
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test::ResourcePath("short_mixed_stereo_48", "dat"),
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2);
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}
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} // namespace webrtc
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