/*
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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_processing/audio_processing_impl.h"
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#include "testing/gmock/include/gmock/gmock.h"
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/config.h"
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#include "webrtc/modules/audio_processing/test/test_utils.h"
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#include "webrtc/modules/include/module_common_types.h"
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using ::testing::Invoke;
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using ::testing::Return;
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namespace webrtc {
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class MockInitialize : public AudioProcessingImpl {
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public:
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explicit MockInitialize(const Config& config) : AudioProcessingImpl(config) {
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}
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MOCK_METHOD0(InitializeLocked, int());
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int RealInitializeLocked() NO_THREAD_SAFETY_ANALYSIS {
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return AudioProcessingImpl::InitializeLocked();
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}
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};
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TEST(AudioProcessingImplTest, AudioParameterChangeTriggersInit) {
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Config config;
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MockInitialize mock(config);
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ON_CALL(mock, InitializeLocked())
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.WillByDefault(Invoke(&mock, &MockInitialize::RealInitializeLocked));
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EXPECT_CALL(mock, InitializeLocked()).Times(1);
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mock.Initialize();
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AudioFrame frame;
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// Call with the default parameters; there should be no init.
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frame.num_channels_ = 1;
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SetFrameSampleRate(&frame, 16000);
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EXPECT_CALL(mock, InitializeLocked())
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.Times(0);
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EXPECT_NOERR(mock.ProcessStream(&frame));
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EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
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// New sample rate. (Only impacts ProcessStream).
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SetFrameSampleRate(&frame, 32000);
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EXPECT_CALL(mock, InitializeLocked())
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.Times(1);
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EXPECT_NOERR(mock.ProcessStream(&frame));
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// New number of channels.
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frame.num_channels_ = 2;
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EXPECT_CALL(mock, InitializeLocked())
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.Times(2);
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EXPECT_NOERR(mock.ProcessStream(&frame));
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// ProcessStream sets num_channels_ == num_output_channels.
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frame.num_channels_ = 2;
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EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
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// A new sample rate passed to AnalyzeReverseStream should be an error and
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// not cause an init.
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SetFrameSampleRate(&frame, 16000);
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EXPECT_CALL(mock, InitializeLocked())
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.Times(0);
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EXPECT_EQ(mock.kBadSampleRateError, mock.AnalyzeReverseStream(&frame));
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}
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} // namespace webrtc
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