d94659dc27
This is the first public upload of the new NetEq, version 4. It has been through extensive internal review during the course of the project. TEST=trybots Review URL: https://webrtc-codereview.appspot.com/1073005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3425 4adac7df-926f-26a2-2b94-8c16560cd09d
90 lines
3.0 KiB
C++
90 lines
3.0 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 "webrtc/modules/audio_coding/neteq4/dsp_helper.h"
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "webrtc/modules/audio_coding/neteq4/audio_multi_vector.h"
|
|
#include "webrtc/typedefs.h"
|
|
|
|
namespace webrtc {
|
|
|
|
TEST(DspHelper, RampSignalArray) {
|
|
static const int kLen = 100;
|
|
int16_t input[kLen];
|
|
int16_t output[kLen];
|
|
// Fill input with 1000.
|
|
for (int i = 0; i < kLen; ++i) {
|
|
input[i] = 1000;
|
|
}
|
|
int start_factor = 0;
|
|
// Ramp from 0 to 1 (in Q14) over the array. Note that |increment| is in Q20,
|
|
// while the factor is in Q14, hence the shift by 6.
|
|
int increment = (16384 << 6) / kLen;
|
|
|
|
// Test first method.
|
|
int stop_factor = DspHelper::RampSignal(input, kLen, start_factor, increment,
|
|
output);
|
|
EXPECT_EQ(16383, stop_factor); // Almost reach 1 in Q14.
|
|
for (int i = 0; i < kLen; ++i) {
|
|
EXPECT_EQ(1000 * i / kLen, output[i]);
|
|
}
|
|
|
|
// Test second method. (Note that this modifies |input|.)
|
|
stop_factor = DspHelper::RampSignal(input, kLen, start_factor, increment);
|
|
EXPECT_EQ(16383, stop_factor); // Almost reach 1 in Q14.
|
|
for (int i = 0; i < kLen; ++i) {
|
|
EXPECT_EQ(1000 * i / kLen, input[i]);
|
|
}
|
|
}
|
|
|
|
TEST(DspHelper, RampSignalAudioMultiVector) {
|
|
static const int kLen = 100;
|
|
static const int kChannels = 5;
|
|
AudioMultiVector<int16_t> input(kChannels, kLen * 3);
|
|
// Fill input with 1000.
|
|
for (int i = 0; i < kLen * 3; ++i) {
|
|
for (int channel = 0; channel < kChannels; ++channel) {
|
|
input[channel][i] = 1000;
|
|
}
|
|
}
|
|
// We want to start ramping at |start_index| and keep ramping for |kLen|
|
|
// samples.
|
|
int start_index = kLen;
|
|
int start_factor = 0;
|
|
// Ramp from 0 to 1 (in Q14) in |kLen| samples. Note that |increment| is in
|
|
// Q20, while the factor is in Q14, hence the shift by 6.
|
|
int increment = (16384 << 6) / kLen;
|
|
|
|
int stop_factor = DspHelper::RampSignal(&input, start_index, kLen,
|
|
start_factor, increment);
|
|
EXPECT_EQ(16383, stop_factor); // Almost reach 1 in Q14.
|
|
// Verify that the first |kLen| samples are left untouched.
|
|
int i;
|
|
for (i = 0; i < kLen; ++i) {
|
|
for (int channel = 0; channel < kChannels; ++channel) {
|
|
EXPECT_EQ(1000, input[channel][i]);
|
|
}
|
|
}
|
|
// Verify that the next block of |kLen| samples are ramped.
|
|
for (; i < 2 * kLen; ++i) {
|
|
for (int channel = 0; channel < kChannels; ++channel) {
|
|
EXPECT_EQ(1000 * (i - kLen) / kLen, input[channel][i]);
|
|
}
|
|
}
|
|
// Verify the last |kLen| samples are left untouched.
|
|
for (; i < 3 * kLen; ++i) {
|
|
for (int channel = 0; channel < kChannels; ++channel) {
|
|
EXPECT_EQ(1000, input[channel][i]);
|
|
}
|
|
}
|
|
}
|
|
} // namespace webrtc
|