Update upstream source from tag 'upstream/0.17.0'

Update to upstream version '0.17.0'
with Debian dir 5b612b6a2d67788b0c85bac59e50edc1545bfd7e

1 files changed, 40 insertions, 0 deletions

diff --git a/src/utils/segmentation_test.cc b/src/utils/segmentation_test.cc
new file mode 100644
index 0000000..e985b2d
--- /dev/null
+++ b/src/utils/segmentation_test.cc
@@ -0,0 +1,40 @@
+// Copyright 2021 The libgav1 Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "src/utils/segmentation.h"
+
+#include <cstdint>
+
+#include "gtest/gtest.h"
+#include "src/utils/common.h"
+#include "src/utils/types.h"
+
+namespace libgav1 {
+namespace {
+
+int GetUnsignedBits(const unsigned int num_values) {
+  return (num_values > 0) ? FloorLog2(num_values) + 1 : 0;
+}
+
+// Check that kSegmentationFeatureBits and kSegmentationFeatureMaxValues are
+// consistent with each other.
+TEST(SegmentationTest, FeatureBitsAndMaxValuesConsistency) {
+  for (int feature = 0; feature < kSegmentFeatureMax; feature++) {
+    EXPECT_EQ(kSegmentationFeatureBits[feature],
+              GetUnsignedBits(kSegmentationFeatureMaxValues[feature]));
+  }
+}
+
+}  // namespace
+}  // namespace libgav1