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| 1 /* | |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/modules/audio_processing/vad/pole_zero_filter.h" | |
| 12 | |
| 13 #include <math.h> | |
| 14 #include <stdio.h> | |
| 15 | |
| 16 #include "testing/gtest/include/gtest/gtest.h" | |
| 17 #include "webrtc/base/scoped_ptr.h" | |
| 18 #include "webrtc/modules/audio_processing/vad/vad_audio_proc_internal.h" | |
| 19 #include "webrtc/test/testsupport/fileutils.h" | |
| 20 | |
| 21 namespace webrtc { | |
| 22 | |
| 23 static const int kInputSamples = 50; | |
| 24 | |
| 25 static const int16_t kInput[kInputSamples] = { | |
| 26 -2136, -7116, 10715, 2464, 3164, 8139, 11393, 24013, -32117, -5544, | |
| 27 -27740, 10181, 14190, -24055, -15912, 17393, 6359, -9950, -13894, 32432, | |
| 28 -23944, 3437, -8381, 19768, 3087, -19795, -5920, 13310, 1407, 3876, | |
| 29 4059, 3524, -23130, 19121, -27900, -24840, 4089, 21422, -3625, 3015, | |
| 30 -11236, 28856, 13424, 6571, -19761, -6361, 15821, -9469, 29727, 32229}; | |
| 31 | |
| 32 static const float kReferenceOutput[kInputSamples] = { | |
| 33 -2082.230472f, -6878.572941f, 10697.090871f, 2358.373952f, | |
| 34 2973.936512f, 7738.580650f, 10690.803213f, 22687.091576f, | |
| 35 -32676.684717f, -5879.621684f, -27359.297432f, 10368.735888f, | |
| 36 13994.584604f, -23676.126249f, -15078.250390f, 17818.253338f, | |
| 37 6577.743123f, -9498.369315f, -13073.651079f, 32460.026588f, | |
| 38 -23391.849347f, 3953.805667f, -7667.761363f, 19995.153447f, | |
| 39 3185.575477f, -19207.365160f, -5143.103201f, 13756.317237f, | |
| 40 1779.654794f, 4142.269755f, 4209.475034f, 3572.991789f, | |
| 41 -22509.089546f, 19307.878964f, -27060.439759f, -23319.042810f, | |
| 42 5547.685267f, 22312.718676f, -2707.309027f, 3852.358490f, | |
| 43 -10135.510093f, 29241.509970f, 13394.397233f, 6340.721417f, | |
| 44 -19510.207905f, -5908.442086f, 15882.301634f, -9211.335255f, | |
| 45 29253.056735f, 30874.443046f}; | |
| 46 | |
| 47 class PoleZeroFilterTest : public ::testing::Test { | |
| 48 protected: | |
| 49 PoleZeroFilterTest() | |
| 50 : my_filter_(PoleZeroFilter::Create(kCoeffNumerator, | |
| 51 kFilterOrder, | |
| 52 kCoeffDenominator, | |
| 53 kFilterOrder)) {} | |
| 54 | |
| 55 ~PoleZeroFilterTest() {} | |
| 56 | |
| 57 void FilterSubframes(int num_subframes); | |
| 58 | |
| 59 private: | |
| 60 void TestClean(); | |
| 61 rtc::scoped_ptr<PoleZeroFilter> my_filter_; | |
| 62 }; | |
| 63 | |
| 64 void PoleZeroFilterTest::FilterSubframes(int num_subframes) { | |
| 65 float output[kInputSamples]; | |
| 66 const int num_subframe_samples = kInputSamples / num_subframes; | |
| 67 EXPECT_EQ(num_subframe_samples * num_subframes, kInputSamples); | |
| 68 | |
| 69 for (int n = 0; n < num_subframes; n++) { | |
| 70 my_filter_->Filter(&kInput[n * num_subframe_samples], num_subframe_samples, | |
| 71 &output[n * num_subframe_samples]); | |
| 72 } | |
| 73 for (int n = 0; n < kInputSamples; n++) { | |
| 74 EXPECT_NEAR(output[n], kReferenceOutput[n], 1); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 TEST_F(PoleZeroFilterTest, OneSubframe) { | |
| 79 FilterSubframes(1); | |
| 80 } | |
| 81 | |
| 82 TEST_F(PoleZeroFilterTest, TwoSubframes) { | |
| 83 FilterSubframes(2); | |
| 84 } | |
| 85 | |
| 86 TEST_F(PoleZeroFilterTest, FiveSubframes) { | |
| 87 FilterSubframes(5); | |
| 88 } | |
| 89 | |
| 90 TEST_F(PoleZeroFilterTest, TenSubframes) { | |
| 91 FilterSubframes(10); | |
| 92 } | |
| 93 | |
| 94 TEST_F(PoleZeroFilterTest, TwentyFiveSubframes) { | |
| 95 FilterSubframes(25); | |
| 96 } | |
| 97 | |
| 98 TEST_F(PoleZeroFilterTest, FiftySubframes) { | |
| 99 FilterSubframes(50); | |
| 100 } | |
| 101 | |
| 102 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1192863006:
Revert "Pull the Voice Activity Detector out from the AGC" (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master