You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2012 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 <stdlib.h>
|
|
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
#include "webrtc/common_audio/vad/vad_unittest.h"
|
|
#include "webrtc/typedefs.h"
|
|
|
|
extern "C" {
|
|
#include "webrtc/common_audio/vad/vad_core.h"
|
|
#include "webrtc/common_audio/vad/vad_sp.h"
|
|
}
|
|
|
|
namespace {
|
|
|
|
TEST_F(VadTest, vad_sp) {
|
|
VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
|
|
const int kMaxFrameLenSp = 960; // Maximum frame length in this unittest.
|
|
int16_t zeros[kMaxFrameLenSp] = { 0 };
|
|
int32_t state[2] = { 0 };
|
|
int16_t data_in[kMaxFrameLenSp];
|
|
int16_t data_out[kMaxFrameLenSp];
|
|
|
|
// We expect the first value to be 1600 as long as |frame_counter| is zero,
|
|
// which is true for the first iteration.
|
|
static const int16_t kReferenceMin[32] = {
|
|
1600, 720, 509, 512, 532, 552, 570, 588,
|
|
606, 624, 642, 659, 675, 691, 707, 723,
|
|
1600, 544, 502, 522, 542, 561, 579, 597,
|
|
615, 633, 651, 667, 683, 699, 715, 731
|
|
};
|
|
|
|
// Construct a speech signal that will trigger the VAD in all modes. It is
|
|
// known that (i * i) will wrap around, but that doesn't matter in this case.
|
|
for (int16_t i = 0; i < kMaxFrameLenSp; ++i) {
|
|
data_in[i] = (i * i);
|
|
}
|
|
// Input values all zeros, expect all zeros out.
|
|
WebRtcVad_Downsampling(zeros, data_out, state, kMaxFrameLenSp);
|
|
EXPECT_EQ(0, state[0]);
|
|
EXPECT_EQ(0, state[1]);
|
|
for (int16_t i = 0; i < kMaxFrameLenSp / 2; ++i) {
|
|
EXPECT_EQ(0, data_out[i]);
|
|
}
|
|
// Make a simple non-zero data test.
|
|
WebRtcVad_Downsampling(data_in, data_out, state, kMaxFrameLenSp);
|
|
EXPECT_EQ(207, state[0]);
|
|
EXPECT_EQ(2270, state[1]);
|
|
|
|
ASSERT_EQ(0, WebRtcVad_InitCore(self));
|
|
// TODO(bjornv): Replace this part of the test with taking values from an
|
|
// array and calculate the reference value here. Make sure the values are not
|
|
// ordered.
|
|
for (int16_t i = 0; i < 16; ++i) {
|
|
int16_t value = 500 * (i + 1);
|
|
for (int j = 0; j < kNumChannels; ++j) {
|
|
// Use values both above and below initialized value.
|
|
EXPECT_EQ(kReferenceMin[i], WebRtcVad_FindMinimum(self, value, j));
|
|
EXPECT_EQ(kReferenceMin[i + 16], WebRtcVad_FindMinimum(self, 12000, j));
|
|
}
|
|
self->frame_counter++;
|
|
}
|
|
|
|
free(self);
|
|
}
|
|
} // namespace
|