1 // Copyright 2021 The libgav1 Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "src/utils/segmentation.h" 16 17 #include <cstdint> 18 19 #include "gtest/gtest.h" 20 #include "src/utils/common.h" 21 #include "src/utils/types.h" 22 23 namespace libgav1 { 24 namespace { 25 GetUnsignedBits(const unsigned int num_values)26int GetUnsignedBits(const unsigned int num_values) { 27 return (num_values > 0) ? FloorLog2(num_values) + 1 : 0; 28 } 29 30 // Check that kSegmentationFeatureBits and kSegmentationFeatureMaxValues are 31 // consistent with each other. TEST(SegmentationTest,FeatureBitsAndMaxValuesConsistency)32TEST(SegmentationTest, FeatureBitsAndMaxValuesConsistency) { 33 for (int feature = 0; feature < kSegmentFeatureMax; feature++) { 34 EXPECT_EQ(kSegmentationFeatureBits[feature], 35 GetUnsignedBits(kSegmentationFeatureMaxValues[feature])); 36 } 37 } 38 39 } // namespace 40 } // namespace libgav1 41