csa_table[i][0] = FIXHR(cs/4);
csa_table[i][1] = FIXHR(ca/4);
csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4);
csa_table[i][0] = FIXHR(cs/4);
csa_table[i][1] = FIXHR(ca/4);
csa_table[i][2] = FIXHR(ca/4) + FIXHR(cs/4);
#define READ_FLIP_SIGN(dst,src) \
v = AV_RN32A(src) ^ (get_bits1(&s->gb) << 31); \
AV_WN32A(dst, v);
#define READ_FLIP_SIGN(dst,src) \
v = AV_RN32A(src) ^ (get_bits1(&s->gb) << 31); \
AV_WN32A(dst, v);