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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (c) 2012 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 <stdlib.h>
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/common_audio/vad/vad_unittest.h"
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#include "webrtc/typedefs.h"
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extern "C" {
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#include "webrtc/common_audio/vad/vad_core.h"
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#include "webrtc/common_audio/vad/vad_sp.h"
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}
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namespace {
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TEST_F(VadTest, vad_sp) {
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VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
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const int kMaxFrameLenSp = 960; // Maximum frame length in this unittest.
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int16_t zeros[kMaxFrameLenSp] = { 0 };
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int32_t state[2] = { 0 };
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int16_t data_in[kMaxFrameLenSp];
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int16_t data_out[kMaxFrameLenSp];
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// We expect the first value to be 1600 as long as |frame_counter| is zero,
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// which is true for the first iteration.
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static const int16_t kReferenceMin[32] = {
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1600, 720, 509, 512, 532, 552, 570, 588,
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606, 624, 642, 659, 675, 691, 707, 723,
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1600, 544, 502, 522, 542, 561, 579, 597,
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615, 633, 651, 667, 683, 699, 715, 731
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};
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// Construct a speech signal that will trigger the VAD in all modes. It is
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// known that (i * i) will wrap around, but that doesn't matter in this case.
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for (int16_t i = 0; i < kMaxFrameLenSp; ++i) {
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data_in[i] = (i * i);
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}
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// Input values all zeros, expect all zeros out.
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WebRtcVad_Downsampling(zeros, data_out, state, kMaxFrameLenSp);
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EXPECT_EQ(0, state[0]);
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EXPECT_EQ(0, state[1]);
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for (int16_t i = 0; i < kMaxFrameLenSp / 2; ++i) {
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EXPECT_EQ(0, data_out[i]);
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}
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// Make a simple non-zero data test.
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WebRtcVad_Downsampling(data_in, data_out, state, kMaxFrameLenSp);
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EXPECT_EQ(207, state[0]);
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EXPECT_EQ(2270, state[1]);
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ASSERT_EQ(0, WebRtcVad_InitCore(self));
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// TODO(bjornv): Replace this part of the test with taking values from an
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// array and calculate the reference value here. Make sure the values are not
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// ordered.
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for (int16_t i = 0; i < 16; ++i) {
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int16_t value = 500 * (i + 1);
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for (int j = 0; j < kNumChannels; ++j) {
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// Use values both above and below initialized value.
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EXPECT_EQ(kReferenceMin[i], WebRtcVad_FindMinimum(self, value, j));
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EXPECT_EQ(kReferenceMin[i + 16], WebRtcVad_FindMinimum(self, 12000, j));
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}
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self->frame_counter++;
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}
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free(self);
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}
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} // namespace
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