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InterleavedFseEncoder

Struct InterleavedFseEncoder 

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pub struct InterleavedFseEncoder { /* private fields */ }
Expand description

Interleaved FSE encoder for Zstd sequences.

Zstd sequences use three interleaved FSE streams:

  • Literal Length (LL)
  • Offset (OF)
  • Match Length (ML)

Each stream maintains its own state, and bits are interleaved in a specific order for optimal decoding performance.

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impl InterleavedFseEncoder

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pub fn new( ll_table: &FseTable, of_table: &FseTable, ml_table: &FseTable, ) -> Self

Create a new interleaved encoder from the three FSE tables.

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pub fn init_states(&mut self, ll: u8, of: u8, ml: u8)

Initialize all three encoders with their first symbols.

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pub fn encode_sequence(&mut self, ll: u8, of: u8, ml: u8) -> [(u32, u8); 3]

Encode one sequence triplet (LL, OF, ML).

Returns the bits and counts for each stream in the correct order.

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pub fn get_states(&self) -> (usize, usize, usize)

Get the final states for all three encoders.

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pub fn accuracy_logs(&self) -> (u8, u8, u8)

Get accuracy logs for all three encoders.

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pub fn reset(&mut self)

Reset all encoders for a new sequence section.

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impl Debug for InterleavedFseEncoder

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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<T> Any for T
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fn type_id(&self) -> TypeId

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impl<T> From<T> for T

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impl<T, U> Into<U> for T
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fn into(self) -> U

Calls U::from(self).

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type Error = Infallible

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Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.