426 static void bgmc_lut_fillp(uint8_t *lut, int *lut_status, int delta)  in bgmc_lut_fillp()  argument
433             unsigned int symbol = 1 << delta;  in bgmc_lut_fillp()
436                 symbol += 1 << delta;  in bgmc_lut_fillp()
438             *lut++ = symbol >> delta;  in bgmc_lut_fillp()
441     *lut_status = delta;  in bgmc_lut_fillp()
446 static uint8_t *bgmc_lut_getp(uint8_t *lut, int *lut_status, int delta)  in bgmc_lut_getp()  argument
448     unsigned int i = av_clip(delta, 0, LUT_BUFF - 1);  in bgmc_lut_getp()
452     if (lut_status[i] != delta)  in bgmc_lut_getp()
453         bgmc_lut_fillp(lut, &lut_status[i], delta);  in bgmc_lut_getp()
511                     int delta, unsigned int sx,  in ff_bgmc_decode()  argument
516     uint8_t *lut = bgmc_lut_getp(cf_lut, cf_lut_status, delta);  in ff_bgmc_decode()
529         unsigned int symbol = lut[target >> (FREQ_BITS - LUT_BITS)] << delta;  in ff_bgmc_decode()
532             symbol += 1 << delta;  in ff_bgmc_decode()
534         symbol = (symbol >> delta) - 1;  in ff_bgmc_decode()
536 …      high = low + ((range * cf_table[sx][(symbol)     << delta] - (1 << FREQ_BITS)) >> FREQ_BITS);  in ff_bgmc_decode()
537 …      low  = low + ((range * cf_table[sx][(symbol + 1) << delta])                    >> FREQ_BITS);  in ff_bgmc_decode()