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EstimateScore

vortex_compressor::estimate

Enum EstimateScore 

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pub enum EstimateScore {
    FiniteCompression(f64),
    ZeroBytes,
}
Expand description

Ranked estimate used for comparing non-terminal compression candidates.

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FiniteCompression(f64)

A finite compression ratio. Higher means a smaller amount of data, so it is better.

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ZeroBytes

Trial compression produced a 0-byte output.

This has no finite ratio and is not eligible for scheme selection.

TODO(connor): A zero-byte sample usually means the sampler happened to hit an all-null sample. Improve this logic so we can distinguish real zero-byte wins from sampling artifacts.

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impl EstimateScore

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pub fn finite_ratio(self) -> Option<f64>

Returns the finite compression ratio, or None for the zero-byte special case.

Callers comparing a scheme’s maximum achievable ratio against a “best so far” threshold should use this to extract a numeric value from an EstimateScore.

Trait Implementations§

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impl Clone for EstimateScore

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fn clone(&self) -> EstimateScore

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for EstimateScore

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for EstimateScore

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fn eq(&self, other: &EstimateScore) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for EstimateScore

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impl StructuralPartialEq for EstimateScore

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