Struct JxlEncoder 

pub struct JxlEncoder { /* private fields */ }

JPEG-XL encoder.

Encodes images to JPEG-XL format. Currently optimized for lossless encoding using the Modular sub-codec with Reversible Color Transform and adaptive prediction.

Implementations

impl JxlEncoder

pub fn new(config: JxlConfig) -> Self

Create a new encoder with the given configuration.

pub fn lossless() -> Self

Create a lossless encoder with default effort.

pub fn lossless_with_effort(effort: u8) -> Self

Create a lossless encoder with specified effort level.

pub fn encode( &self, data: &[u8], width: u32, height: u32, channels: u8, bit_depth: u8, ) -> CodecResult<Vec<u8>>

Encode an image to JPEG-XL format.

Arguments

• data - Interleaved pixel data (e.g., RGBRGBRGB… for 8-bit RGB)
• width - Image width in pixels
• height - Image height in pixels
• channels - Number of channels (1=gray, 3=RGB, 4=RGBA)
• bit_depth - Bits per sample (8 or 16)

Errors

Returns error if parameters are invalid or encoding fails.

Trait Implementations

impl Default for JxlEncoder

fn default() -> Self

Returns the “default value” for a type.