From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../modules/video_coding/histogram_unittest.cc | 77 ++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 third_party/libwebrtc/modules/video_coding/histogram_unittest.cc (limited to 'third_party/libwebrtc/modules/video_coding/histogram_unittest.cc') diff --git a/third_party/libwebrtc/modules/video_coding/histogram_unittest.cc b/third_party/libwebrtc/modules/video_coding/histogram_unittest.cc new file mode 100644 index 0000000000..3690a39398 --- /dev/null +++ b/third_party/libwebrtc/modules/video_coding/histogram_unittest.cc @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2016 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 "modules/video_coding/histogram.h" + +#include "test/gtest.h" + +namespace webrtc { +namespace video_coding { + +class TestHistogram : public ::testing::Test { + protected: + TestHistogram() : histogram_(5, 10) {} + Histogram histogram_; +}; + +TEST_F(TestHistogram, NumValues) { + EXPECT_EQ(0ul, histogram_.NumValues()); + histogram_.Add(0); + EXPECT_EQ(1ul, histogram_.NumValues()); +} + +TEST_F(TestHistogram, InverseCdf) { + histogram_.Add(0); + histogram_.Add(1); + histogram_.Add(2); + histogram_.Add(3); + histogram_.Add(4); + EXPECT_EQ(5ul, histogram_.NumValues()); + EXPECT_EQ(1ul, histogram_.InverseCdf(0.2f)); + EXPECT_EQ(2ul, histogram_.InverseCdf(0.2000001f)); + EXPECT_EQ(4ul, histogram_.InverseCdf(0.8f)); + + histogram_.Add(0); + EXPECT_EQ(6ul, histogram_.NumValues()); + EXPECT_EQ(1ul, histogram_.InverseCdf(0.2f)); + EXPECT_EQ(1ul, histogram_.InverseCdf(0.2000001f)); +} + +TEST_F(TestHistogram, ReplaceOldValues) { + histogram_.Add(0); + histogram_.Add(0); + histogram_.Add(0); + histogram_.Add(0); + histogram_.Add(0); + histogram_.Add(1); + histogram_.Add(1); + histogram_.Add(1); + histogram_.Add(1); + histogram_.Add(1); + EXPECT_EQ(10ul, histogram_.NumValues()); + EXPECT_EQ(1ul, histogram_.InverseCdf(0.5f)); + EXPECT_EQ(2ul, histogram_.InverseCdf(0.5000001f)); + + histogram_.Add(4); + histogram_.Add(4); + histogram_.Add(4); + histogram_.Add(4); + EXPECT_EQ(10ul, histogram_.NumValues()); + EXPECT_EQ(1ul, histogram_.InverseCdf(0.1f)); + EXPECT_EQ(2ul, histogram_.InverseCdf(0.5f)); + + histogram_.Add(20); + EXPECT_EQ(10ul, histogram_.NumValues()); + EXPECT_EQ(2ul, histogram_.InverseCdf(0.5f)); + EXPECT_EQ(5ul, histogram_.InverseCdf(0.5000001f)); +} + +} // namespace video_coding +} // namespace webrtc -- cgit v1.2.3