1/* 2 * Copyright (c) 2014 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/audio_processing_impl.h" 12 13#include "testing/gmock/include/gmock/gmock.h" 14#include "testing/gtest/include/gtest/gtest.h" 15#include "webrtc/config.h" 16#include "webrtc/modules/audio_processing/test/test_utils.h" 17#include "webrtc/modules/include/module_common_types.h" 18 19using ::testing::Invoke; 20using ::testing::Return; 21 22namespace webrtc { 23 24class MockInitialize : public AudioProcessingImpl { 25 public: 26 explicit MockInitialize(const Config& config) : AudioProcessingImpl(config) { 27 } 28 29 MOCK_METHOD0(InitializeLocked, int()); 30 int RealInitializeLocked() NO_THREAD_SAFETY_ANALYSIS { 31 return AudioProcessingImpl::InitializeLocked(); 32 } 33}; 34 35TEST(AudioProcessingImplTest, AudioParameterChangeTriggersInit) { 36 Config config; 37 MockInitialize mock(config); 38 ON_CALL(mock, InitializeLocked()) 39 .WillByDefault(Invoke(&mock, &MockInitialize::RealInitializeLocked)); 40 41 EXPECT_CALL(mock, InitializeLocked()).Times(1); 42 mock.Initialize(); 43 44 AudioFrame frame; 45 // Call with the default parameters; there should be no init. 46 frame.num_channels_ = 1; 47 SetFrameSampleRate(&frame, 16000); 48 EXPECT_CALL(mock, InitializeLocked()) 49 .Times(0); 50 EXPECT_NOERR(mock.ProcessStream(&frame)); 51 EXPECT_NOERR(mock.AnalyzeReverseStream(&frame)); 52 53 // New sample rate. (Only impacts ProcessStream). 54 SetFrameSampleRate(&frame, 32000); 55 EXPECT_CALL(mock, InitializeLocked()) 56 .Times(1); 57 EXPECT_NOERR(mock.ProcessStream(&frame)); 58 59 // New number of channels. 60 frame.num_channels_ = 2; 61 EXPECT_CALL(mock, InitializeLocked()) 62 .Times(2); 63 EXPECT_NOERR(mock.ProcessStream(&frame)); 64 // ProcessStream sets num_channels_ == num_output_channels. 65 frame.num_channels_ = 2; 66 EXPECT_NOERR(mock.AnalyzeReverseStream(&frame)); 67 68 // A new sample rate passed to AnalyzeReverseStream should be an error and 69 // not cause an init. 70 SetFrameSampleRate(&frame, 16000); 71 EXPECT_CALL(mock, InitializeLocked()) 72 .Times(0); 73 EXPECT_EQ(mock.kBadSampleRateError, mock.AnalyzeReverseStream(&frame)); 74} 75 76} // namespace webrtc 77