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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/agc/pole_zero_filter.h" | |
| 12 | |
| 13 #include <math.h> | |
| 14 #include <stdio.h> | |
| 15 | |
| 16 #include "gtest/gtest.h" | |
| 17 #include "webrtc/base/scoped_ptr.h" | |
| 18 #include "webrtc/modules/audio_processing/agc/agc_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] = {-2136, -7116, 10715, 2464, 3164, | |
| 26 8139, 11393, 24013, -32117, -5544, -27740, 10181, 14190, -24055, -15912, | |
| 27 17393, 6359, -9950, -13894, 32432, -23944, 3437, -8381, 19768, 3087, -19795, | |
| 28 -5920, 13310, 1407, 3876, 4059, 3524, -23130, 19121, -27900, -24840, 4089, | |
| 29 21422, -3625, 3015, -11236, 28856, 13424, 6571, -19761, -6361, 15821, -9469, | |
| 30 29727, 32229}; | |
| 31 | |
| 32 static const float kReferenceOutput[kInputSamples] = {-2082.230472f, | |
| 33 -6878.572941f, 10697.090871f, 2358.373952f, 2973.936512f, 7738.580650f, | |
| 34 10690.803213f, 22687.091576f, -32676.684717f, -5879.621684f, -27359.297432f, | |
| 35 10368.735888f, 13994.584604f, -23676.126249f, -15078.250390f, 17818.253338f, | |
| 36 6577.743123f, -9498.369315f, -13073.651079f, 32460.026588f, -23391.849347f, | |
| 37 3953.805667f, -7667.761363f, 19995.153447f, 3185.575477f, -19207.365160f, | |
| 38 -5143.103201f, 13756.317237f, 1779.654794f, 4142.269755f, 4209.475034f, | |
| 39 3572.991789f, -22509.089546f, 19307.878964f, -27060.439759f, -23319.042810f, | |
| 40 5547.685267f, 22312.718676f, -2707.309027f, 3852.358490f, -10135.510093f, | |
| 41 29241.509970f, 13394.397233f, 6340.721417f, -19510.207905f, -5908.442086f, | |
| 42 15882.301634f, -9211.335255f, 29253.056735f, 30874.443046f}; | |
| 43 | |
| 44 class PoleZeroFilterTest : public ::testing::Test { | |
| 45 protected: | |
| 46 PoleZeroFilterTest() | |
| 47 : my_filter_(PoleZeroFilter::Create( | |
| 48 kCoeffNumerator, kFilterOrder, kCoeffDenominator, kFilterOrder)) {} | |
| 49 | |
| 50 ~PoleZeroFilterTest() {} | |
| 51 | |
| 52 void FilterSubframes(int num_subframes); | |
| 53 | |
| 54 private: | |
| 55 void TestClean(); | |
| 56 rtc::scoped_ptr<PoleZeroFilter> my_filter_; | |
| 57 }; | |
| 58 | |
| 59 void PoleZeroFilterTest::FilterSubframes(int num_subframes) { | |
| 60 float output[kInputSamples]; | |
| 61 const int num_subframe_samples = kInputSamples / num_subframes; | |
| 62 EXPECT_EQ(num_subframe_samples * num_subframes, kInputSamples); | |
| 63 | |
| 64 for (int n = 0; n < num_subframes; n++) { | |
| 65 my_filter_->Filter(&kInput[n * num_subframe_samples], num_subframe_samples, | |
| 66 &output[n * num_subframe_samples]); | |
| 67 } | |
| 68 for (int n = 0; n < kInputSamples; n++) { | |
| 69 EXPECT_NEAR(output[n], kReferenceOutput[n], 1); | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 TEST_F(PoleZeroFilterTest, OneSubframe) { | |
| 74 FilterSubframes(1); | |
| 75 } | |
| 76 | |
| 77 TEST_F(PoleZeroFilterTest, TwoSubframes) { | |
| 78 FilterSubframes(2); | |
| 79 } | |
| 80 | |
| 81 TEST_F(PoleZeroFilterTest, FiveSubframes) { | |
| 82 FilterSubframes(5); | |
| 83 } | |
| 84 | |
| 85 TEST_F(PoleZeroFilterTest, TenSubframes) { | |
| 86 FilterSubframes(10); | |
| 87 } | |
| 88 | |
| 89 TEST_F(PoleZeroFilterTest, TwentyFiveSubframes) { | |
| 90 FilterSubframes(25); | |
| 91 } | |
| 92 | |
| 93 TEST_F(PoleZeroFilterTest, FiftySubframes) { | |
| 94 FilterSubframes(50); | |
| 95 } | |
| 96 | |
| 97 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1181933002:
Pull the Voice Activity Detector out from the AGC (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master