Struct Rans64EncSymbol 

pub struct Rans64EncSymbol {
    pub x_max_hi: u32,
    pub freq_rcp_shift: u32,
    pub freq_rcp: u64,
    pub freq_cmpl: u32,
    pub bias: u32,
}

Re-export the core rANS primitives. Prepared encoder symbol.

Fields

x_max_hi: u32

freq_rcp_shift: u32

freq_rcp: u64

freq_cmpl: u32

bias: u32

Implementations

impl Rans64EncSymbol

pub fn new(start: u32, freq: u32, scale_bits: u32) -> Rans64EncSymbol

Create a new prepared encoder symbol.

pub fn try_new( start: u32, freq: u32, scale_bits: u32, ) -> Result<Rans64EncSymbol, RawRansError>

Create a new prepared encoder symbol with bounds checking.

Returns Err(RawRansError::InvalidScaleBits) if scale_bits is outside the safe range [2, min($max_scale_bits, 31)]. The value 32 is rejected because 1u32 << 32 overflows (a defined Rust panic and C++ UB).

pub fn quotient(&self, x: u64) -> u64

Compute quotient: fast division using precomputed reciprocal.

Trait Implementations

impl Clone for Rans64EncSymbol

fn clone(&self) -> Rans64EncSymbol

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Rans64EncSymbol

impl Debug for Rans64EncSymbol

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

Formats the value using the given formatter.