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 "gtest/gtest.h" 12 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h" 13 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/filterbank_internal.h" 14 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/filterbank_tables.h" 15 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/settings.h" 16 #include "webrtc/system_wrappers/interface/cpu_features_wrapper.h" 17 #include "webrtc/typedefs.h" 18 19 class FilterBanksTest : public testing::Test { 20 protected: 21 // Pass a function pointer to the Tester function. 22 void CalculateResidualEnergyTester(AllpassFilter2FixDec16 23 AllpassFilter2FixDec16Function) { 24 const int kSamples = QLOOKAHEAD; 25 const int kState = 2; 26 int16_t data_ch1[kSamples] = {0}; 27 int16_t data_ch2[kSamples] = {0}; 28 int32_t state_ch1[kState] = {0}; 29 int32_t state_ch2[kState] = {0}; 30 const int32_t out_state_ch1[kState] = {-809122714, 1645972152}; 31 const int32_t out_state_ch2[kState] = {428019288, 1057309936}; 32 const int32_t out_data_ch1[kSamples] = {0, 0, 347, 10618, 16718, -7089, 33 32767, 16913, 27042, 8377, -22973, -28372, -27603, -14804, 398, -25332, 34 -11200, 18044, 25223, -6839, 1116, -23984, 32717, 7364}; 35 const int32_t out_data_ch2[kSamples] = {0, 0, 3010, 22351, 21106, 16969, 36 -2095, -664, 3513, -30980, 32767, -23839, 13335, 20289, -6831, 339, 37 -17207, 32767, 4959, 6177, 32767, 16599, -4747, 20504}; 38 int sign = 1; 39 40 for (int i = 0; i < kSamples; i++) { 41 sign *= -1; 42 data_ch1[i] = sign * WEBRTC_SPL_WORD32_MAX / (i * i + 1); 43 data_ch2[i] = sign * WEBRTC_SPL_WORD32_MIN / (i * i + 1); 44 }; 45 46 AllpassFilter2FixDec16Function(data_ch1, 47 data_ch2, 48 WebRtcIsacfix_kUpperApFactorsQ15, 49 WebRtcIsacfix_kLowerApFactorsQ15, 50 kSamples, 51 state_ch1, 52 state_ch2); 53 54 for (int i = 0; i < kSamples; i++) { 55 EXPECT_EQ(out_data_ch1[i], data_ch1[i]); 56 EXPECT_EQ(out_data_ch2[i], data_ch2[i]); 57 } 58 for (int i = 0; i < kState; i++) { 59 EXPECT_EQ(out_state_ch1[i], state_ch1[i]); 60 EXPECT_EQ(out_state_ch2[i], state_ch2[i]); 61 } 62 } 63 }; 64 65 TEST_F(FilterBanksTest, AllpassFilter2FixDec16Test) { 66 CalculateResidualEnergyTester(WebRtcIsacfix_AllpassFilter2FixDec16C); 67 #ifdef WEBRTC_DETECT_ARM_NEON 68 if ((WebRtc_GetCPUFeaturesARM() & kCPUFeatureNEON) != 0) { 69 CalculateResidualEnergyTester(WebRtcIsacfix_AllpassFilter2FixDec16Neon); 70 } 71 #elif defined(WEBRTC_ARCH_ARM_NEON) 72 CalculateResidualEnergyTester(WebRtcIsacfix_AllpassFilter2FixDec16Neon); 73 #endif 74 } 75 76 TEST_F(FilterBanksTest, HighpassFilterFixDec32Test) { 77 const int kSamples = 20; 78 int16_t in[kSamples]; 79 int32_t state[2] = {12345, 987654}; 80 #ifdef WEBRTC_ARCH_ARM_V7 81 int32_t out[kSamples] = {-1040, -1035, -22875, -1397, -27604, 20018, 7917, 82 -1279, -8552, -14494, -7558, -23537, -27258, -30554, -32768, -3432, -32768, 83 25215, -27536, 22436}; 84 #else 85 int32_t out[kSamples] = {-1040, -1035, -22875, -1397, -27604, 20017, 7915, 86 -1280, -8554, -14496, -7561, -23541, -27263, -30560, -32768, -3441, -32768, 87 25203, -27550, 22419}; 88 #endif 89 90 for (int i = 0; i < kSamples; i++) { 91 in[i] = WEBRTC_SPL_WORD32_MAX / (i + 1); 92 } 93 94 WebRtcIsacfix_HighpassFilterFixDec32(in, kSamples, 95 WebRtcIsacfix_kHPStCoeffOut1Q30, state); 96 97 for (int i = 0; i < kSamples; i++) { 98 EXPECT_EQ(out[i], in[i]); 99 } 100 } 101
