Enum EncoderMode 

pub enum EncoderMode {
    Reference,
    Experimental,
}

Controls whether the encoder matches libjxl’s algorithm choices or uses its own improvements.

Both modes produce valid JPEG XL bitstreams decodable by any conformant decoder. The difference is in encoder-side decisions: strategy selection heuristics, cost models, entropy coding parameters, tree learning, etc.

Variants

Reference

Match libjxl’s algorithm choices at the configured effort level.

Output is statistically equivalent to cjxl at the same effort and distance — same RD curve within measurement noise. Use this when comparing against libjxl or when reproducibility matters.

Experimental

Use encoder-specific improvements and research features.

May produce better rate-distortion performance than libjxl at the same effort level, but output will differ. Use this for production encoding where quality per byte is the goal.

Trait Implementations

impl Clone for EncoderMode

fn clone(&self) -> EncoderMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EncoderMode

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

Formats the value using the given formatter.

impl Default for EncoderMode

fn default() -> EncoderMode

Returns the “default value” for a type.

impl PartialEq for EncoderMode

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl Copy for EncoderMode

impl Eq for EncoderMode

impl StructuralPartialEq for EncoderMode