lib/compress/zstd_opt.c

16 #define ZSTD_LITFREQ_ADD    2   /* scaling factor for litFreq, so that frequencies adapt faster to new stats */
125                 assert(optPtr->litFreq != NULL);
131                     optPtr->litFreq[lit] = bitCost ? 1 << (scaleLog-bitCost) : 1 /*minimum to calculate cost*/;
132                     optPtr->litSum += optPtr->litFreq[lit];
173             assert(optPtr->litFreq != NULL);
176                 HIST_count_simple(optPtr->litFreq, &lit, src, srcSize);   /* use raw first block to init statistics */
177                 optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
203             optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
231             assert(WEIGHT(optPtr->litFreq[literals[u]], optLevel) <= optPtr->litSumBasePrice);   /* literal cost should never be negative */
232             price -= WEIGHT(optPtr->litFreq[literals[u]], optLevel);
296             optPtr->litFreq[literals[u]] += ZSTD_LITFREQ_ADD;
1095         optPtr->litSum = ZSTD_upscaleStat(optPtr->litFreq, MaxLit, 0);