77eab70470
NOPRESUBMIT=true BUG=webrtc:6398 Review-Url: https://codereview.webrtc.org/2358993004 Cr-Commit-Position: refs/heads/master@{#14425}
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/*
|
|
* 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/common_audio/window_generator.h"
|
|
|
|
#include <cstring>
|
|
|
|
#include "webrtc/test/gtest.h"
|
|
|
|
namespace webrtc {
|
|
|
|
TEST(WindowGeneratorTest, KaiserBesselDerived) {
|
|
float window[7];
|
|
|
|
memset(window, 0, sizeof(window));
|
|
|
|
WindowGenerator::KaiserBesselDerived(0.397856f, 2, window);
|
|
ASSERT_NEAR(window[0], 0.707106f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 0.707106f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
|
|
WindowGenerator::KaiserBesselDerived(0.397856f, 3, window);
|
|
ASSERT_NEAR(window[0], 0.598066f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 0.922358f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.598066f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
|
|
WindowGenerator::KaiserBesselDerived(0.397856f, 6, window);
|
|
ASSERT_NEAR(window[0], 0.458495038865344f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 0.707106781186548f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.888696967101760f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.888696967101760f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.707106781186548f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.458495038865344f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
}
|
|
|
|
TEST(WindowGeneratorTest, Hanning) {
|
|
float window[7];
|
|
|
|
memset(window, 0, sizeof(window));
|
|
|
|
window[0] = -1.0f;
|
|
window[1] = -1.0f;
|
|
WindowGenerator::Hanning(2, window);
|
|
ASSERT_NEAR(window[0], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
|
|
window[0] = -1.0f;
|
|
window[2] = -1.0f;
|
|
WindowGenerator::Hanning(3, window);
|
|
ASSERT_NEAR(window[0], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 1.0f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
|
|
window[0] = -1.0f;
|
|
window[5] = -1.0f;
|
|
WindowGenerator::Hanning(6, window);
|
|
ASSERT_NEAR(window[0], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[1], 0.345491f, 1e-6f);
|
|
ASSERT_NEAR(window[2], 0.904508f, 1e-6f);
|
|
ASSERT_NEAR(window[3], 0.904508f, 1e-6f);
|
|
ASSERT_NEAR(window[4], 0.345491f, 1e-6f);
|
|
ASSERT_NEAR(window[5], 0.0f, 1e-6f);
|
|
ASSERT_NEAR(window[6], 0.0f, 1e-6f);
|
|
}
|
|
|
|
} // namespace webrtc
|
|
|