Struct JxlEncoder 

pub struct JxlEncoder { /* private fields */ }

Encodes a JPEG XL codestream.

Implementations

impl JxlEncoder

pub const fn new() -> JxlEncoder

A lossy encoder at distance 1, visually lossless.

pub const fn lossless() -> JxlEncoder

A lossless encoder.

pub const fn with_distance(distance: f32) -> JxlEncoder

A lossy encoder at distance: 1 is visually lossless, 0.5 finer, up to 25 for the coarsest.

pub fn from_options(options: &EncodeOptions) -> JxlEncoder

An encoder configured from generic encode options: lossless if lossless, otherwise lossy at the distance libjxl’s cjxl gives quality (90 is distance 1).

Trait Implementations

impl Debug for JxlEncoder

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

Formats the value using the given formatter.

impl Default for JxlEncoder

fn default() -> JxlEncoder

Returns the “default value” for a type.

impl Encoder for JxlEncoder

fn set_exif(&mut self, exif: Option<&[u8]>) -> Result<(), PixelsError>

Written in an Exif box, which puts the file in the container.

fn set_xmp(&mut self, xmp: Option<&[u8]>) -> Result<(), PixelsError>

Written in an xml box, which puts the file in the container.

fn write_header( &mut self, desc: &ImageDescriptor, _sink: &mut dyn Sink, ) -> Result<(), PixelsError>

Begin an image, writing any container header.

fn write_row( &mut self, row: &[u8], _sink: &mut dyn Sink, ) -> Result<(), PixelsError>

Write the next row, top to bottom.

fn finish(&mut self, sink: &mut dyn Sink) -> Result<(), PixelsError>

Finish the image, writing any trailer and flushing the sink.

fn set_icc_profile(&mut self, profile: Option<&[u8]>) -> Result<(), PixelsError>

Embed profile as the image’s ICC colour profile, or write none.

fn set_density(&mut self, density: Option<Density>) -> Result<(), PixelsError>

Record density as the image’s resolution, or write the format’s default.