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/*
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/audio_processing/audio_processing_impl.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/config.h"
#include "webrtc/modules/audio_processing/test/test_utils.h"
#include "webrtc/modules/interface/module_common_types.h"
using ::testing::Invoke;
using ::testing::Return;
namespace webrtc {
class MockInitialize : public AudioProcessingImpl {
public:
explicit MockInitialize(const Config& config) : AudioProcessingImpl(config) {
}
MOCK_METHOD0(InitializeLocked, int());
int RealInitializeLocked() NO_THREAD_SAFETY_ANALYSIS {
return AudioProcessingImpl::InitializeLocked();
}
};
TEST(AudioProcessingImplTest, AudioParameterChangeTriggersInit) {
Config config;
MockInitialize mock(config);
ON_CALL(mock, InitializeLocked())
.WillByDefault(Invoke(&mock, &MockInitialize::RealInitializeLocked));
EXPECT_CALL(mock, InitializeLocked()).Times(1);
mock.Initialize();
AudioFrame frame;
// Call with the default parameters; there should be no init.
frame.num_channels_ = 1;
SetFrameSampleRate(&frame, 16000);
EXPECT_CALL(mock, InitializeLocked())
.Times(0);
EXPECT_NOERR(mock.ProcessStream(&frame));
EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
// New sample rate. (Only impacts ProcessStream).
SetFrameSampleRate(&frame, 32000);
EXPECT_CALL(mock, InitializeLocked())
.Times(1);
EXPECT_NOERR(mock.ProcessStream(&frame));
// New number of channels.
frame.num_channels_ = 2;
EXPECT_CALL(mock, InitializeLocked())
.Times(2);
EXPECT_NOERR(mock.ProcessStream(&frame));
// ProcessStream sets num_channels_ == num_output_channels.
frame.num_channels_ = 2;
EXPECT_NOERR(mock.AnalyzeReverseStream(&frame));
// A new sample rate passed to AnalyzeReverseStream should be an error and
// not cause an init.
SetFrameSampleRate(&frame, 16000);
EXPECT_CALL(mock, InitializeLocked())
.Times(0);
EXPECT_EQ(mock.kBadSampleRateError, mock.AnalyzeReverseStream(&frame));
}
} // namespace webrtc
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