src/main/java/net/sourceforge/jaad/aac/sbr/SBR.java
private void invf_mode(IBitStream ld, int ch) throws AACException {
		int n;

		for(n = 0; n<this.N_Q; n++) {
			this.bs_invf_mode[ch][n] = ld.readBits(2);
		}
	}
private void invf_mode(IBitStream ld, int ch) throws AACException {
		int n;

		for(n = 0; n<this.N_Q; n++) {
			this.bs_invf_mode[ch][n] = ld.readBits(2);
		}
	}
/* table 9