src/main/java/net/sourceforge/jaad/aac/syntax/BitStream.java
@Override
    public int peekBits(int n) throws AACException {
		int ret;
		if(bitsCached>=n) {
			ret = (cache>>(bitsCached-n))&maskBits(n);
		}
		else {
			//old cache
			final int c = cache&maskBits(bitsCached);
			n -= bitsCached;
			//read next & combine
			ret = ((readCache(true)>>WORD_BITS-n)&maskBits(n))|(c<<n);
		}
		return ret;
	}
@Override
    public int peekBits(int n) throws AACException {
		int ret;
		if(bitsCached>=n) {
			ret = (cache>>(bitsCached-n))&maskBits(n);
		}
		else {
			//old cache
			final int c = cache&maskBits(bitsCached);
			n -= bitsCached;
			//read next & combine
			ret = ((readCache(true)>>WORD_BITS-n)&maskBits(n))|(c<<n);
		}
		return ret;
	}
/* (non-Javadoc)
@see net.sourceforge.jaad.aac.syntax.IBitStream#peekBits(int)