lzma/Java/Tukaani/src/org/tukaani/xz/common/Util.java

/*
 * Util
 *
 * Author: Lasse Collin <lasse.collin@tukaani.org>
 *
 * This file has been put into the public domain.
 * You can do whatever you want with this file.
 */

package org.tukaani.xz.common;

public class Util {
    public static final int STREAM_HEADER_SIZE = 12;
    public static final long BACKWARD_SIZE_MAX = 1L << 34;
    public static final int BLOCK_HEADER_SIZE_MAX = 1024;
    public static final long VLI_MAX = Long.MAX_VALUE;
    public static final int VLI_SIZE_MAX = 9;

    public static int getVLISize(long num) {
        int size = 0;
        do {
            ++size;
            num >>= 7;
        } while (num != 0);

        return size;
    }
}