Initial release

thirdparty/libwebm/webm_parser/src/bit_utils.h

@@ -0,0 +1,24 @@
+// Copyright (c) 2016 The WebM 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.
+#ifndef SRC_BIT_UTILS_H_
+#define SRC_BIT_UTILS_H_
+
+#include <cstdint>
+
+namespace webm {
+
+// Counts the number of leading zero bits.
+// For example:
+//   assert(8 == CountLeadingZeros(0x00));
+//   assert(4 == CountLeadingZeros(0x0f));
+//   assert(0 == CountLeadingZeros(0xf0));
+std::uint8_t CountLeadingZeros(std::uint8_t value);
+
+}  // namespace webm
+
+#endif  // SRC_BIT_UTILS_H_