int *value, int codingset)
{
GetBitContext *gb = &v->s.gb;
- int index, escape, run = 0, level = 0, lst = 0;
+ int index, run, level, lst, sign;
index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
if (index != ff_vc1_ac_sizes[codingset] - 1) {
run = vc1_index_decode_table[codingset][index][0];
level = vc1_index_decode_table[codingset][index][1];
lst = index >= vc1_last_decode_table[codingset] || get_bits_left(gb) < 0;
- if (get_bits1(gb))
- level = -level;
+ sign = get_bits1(gb);
} else {
- escape = decode210(gb);
+ int escape = decode210(gb);
if (escape != 2) {
index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
run = vc1_index_decode_table[codingset][index][0];
else
run += vc1_delta_run_table[codingset][level] + 1;
}
- if (get_bits1(gb))
- level = -level;
+ sign = get_bits1(gb);
} else {
- int sign;
lst = get_bits1(gb);
if (v->s.esc3_level_length == 0) {
if (v->pq < 8 || v->dquantfrm) { // table 59
run = get_bits(gb, v->s.esc3_run_length);
sign = get_bits1(gb);
level = get_bits(gb, v->s.esc3_level_length);
- if (sign)
- level = -level;
}
}
*last = lst;
*skip = run;
- *value = level;
+ *value = (level ^ -sign) + sign;
}
/** Decode intra block in intra frames - should be faster than decode_intra_block