val1 = sign_extend(val >> 8, 8);
val2 = sign_extend(val & 0xFF, 8);
if (type == ON2AVC_ESC_CB) {
if (val1 <= -16 || val1 >= 16) {
sign = 1 - (val1 < 0) * 2;
val1 = sign_extend(val >> 8, 8);
val2 = sign_extend(val & 0xFF, 8);
if (type == ON2AVC_ESC_CB) {
if (val1 <= -16 || val1 >= 16) {
sign = 1 - (val1 < 0) * 2;