| /* |
| * Copyright 2012 Sebastian Annies, Hamburg |
| * |
| * 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. |
| */ |
| package com.googlecode.mp4parser.util; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.UUID; |
| |
| /** |
| * UUID from/to byte array. |
| */ |
| public class UUIDConverter { |
| public static byte[] convert(UUID uuid) { |
| |
| long msb = uuid.getMostSignificantBits(); |
| long lsb = uuid.getLeastSignificantBits(); |
| byte[] buffer = new byte[16]; |
| |
| for (int i = 0; i < 8; i++) { |
| buffer[i] = (byte) (msb >>> 8 * (7 - i)); |
| } |
| for (int i = 8; i < 16; i++) { |
| buffer[i] = (byte) (lsb >>> 8 * (7 - i)); |
| } |
| |
| return buffer; |
| |
| } |
| |
| public static UUID convert(byte[] uuidBytes) { |
| ByteBuffer b = ByteBuffer.wrap(uuidBytes); |
| b.order(ByteOrder.BIG_ENDIAN); |
| return new UUID(b.getLong(), b.getLong()); |
| } |
| } |