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Add the new fastLZWithUpperBoundEstimator #2

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Add the new fastLZWithUpperBoundEstimator #2

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9 changes: 9 additions & 0 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,7 @@ func main() {
repeatedByte1Estimator,
repeatedByte2Estimator,
repeatedOrZeroEstimator,
fastLZWithUpperBoundEstimator,
fastLZEstimator,
zlibBestEstimator,
zlibBestBatchEstimator, // final estimator value is always used as the "ground truth" against which others are measured
Expand Down Expand Up @@ -470,6 +471,14 @@ func fastLZEstimator(tx []byte) float64 {
return float64(flzCompressLen(tx))
}

func fastLZWithUpperBoundEstimator(tx []byte) float64 {
fastLZSize := fastLZEstimator(tx)
if fastLZSize > float64(len(tx)) {
return float64(len(tx))
}
return fastLZSize
}

// uncompressedSizeEstimator just returns the length of the input
func uncompressedSizeEstimator(tx []byte) float64 {
return float64(len(tx))
Expand Down