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/*
* 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"
}
namespace {
TEST_F(VadTest, InitCore) {
// Test WebRtcVad_InitCore().
VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
// NULL pointer test.
EXPECT_EQ(-1, WebRtcVad_InitCore(NULL));
// Verify return = 0 for non-NULL pointer.
EXPECT_EQ(0, WebRtcVad_InitCore(self));
// Verify init_flag is set.
EXPECT_EQ(42, self->init_flag);
free(self);
}
TEST_F(VadTest, set_mode_core) {
VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
// TODO(bjornv): Add NULL pointer check if we take care of it in
// vad_core.c
ASSERT_EQ(0, WebRtcVad_InitCore(self));
// Test WebRtcVad_set_mode_core().
// Invalid modes should return -1.
EXPECT_EQ(-1, WebRtcVad_set_mode_core(self, -1));
EXPECT_EQ(-1, WebRtcVad_set_mode_core(self, 1000));
// Valid modes should return 0.
for (size_t j = 0; j < kModesSize; ++j) {
EXPECT_EQ(0, WebRtcVad_set_mode_core(self, kModes[j]));
}
free(self);
}
TEST_F(VadTest, CalcVad) {
VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
int16_t speech[kMaxFrameLength];
// TODO(bjornv): Add NULL pointer check if we take care of it in
// vad_core.c
// Test WebRtcVad_CalcVadXXkhz()
// Verify that all zeros in gives VAD = 0 out.
memset(speech, 0, sizeof(speech));
ASSERT_EQ(0, WebRtcVad_InitCore(self));
for (size_t j = 0; j < kFrameLengthsSize; ++j) {
if (ValidRatesAndFrameLengths(8000, kFrameLengths[j])) {
EXPECT_EQ(0, WebRtcVad_CalcVad8khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(16000, kFrameLengths[j])) {
EXPECT_EQ(0, WebRtcVad_CalcVad16khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(32000, kFrameLengths[j])) {
EXPECT_EQ(0, WebRtcVad_CalcVad32khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(48000, kFrameLengths[j])) {
EXPECT_EQ(0, WebRtcVad_CalcVad48khz(self, speech, kFrameLengths[j]));
}
}
// 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 < kMaxFrameLength; ++i) {
speech[i] = (i * i);
}
for (size_t j = 0; j < kFrameLengthsSize; ++j) {
if (ValidRatesAndFrameLengths(8000, kFrameLengths[j])) {
EXPECT_EQ(1, WebRtcVad_CalcVad8khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(16000, kFrameLengths[j])) {
EXPECT_EQ(1, WebRtcVad_CalcVad16khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(32000, kFrameLengths[j])) {
EXPECT_EQ(1, WebRtcVad_CalcVad32khz(self, speech, kFrameLengths[j]));
}
if (ValidRatesAndFrameLengths(48000, kFrameLengths[j])) {
EXPECT_EQ(1, WebRtcVad_CalcVad48khz(self, speech, kFrameLengths[j]));
}
}
free(self);
}
} // namespace
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