Struct FileHeader 

pub struct FileHeader {
    pub width: u32,
    pub height: u32,
    pub metadata: ImageMetadata,
}

Complete JXL file header.

Fields

width: u32

Image width in pixels.

height: u32

Image height in pixels.

metadata: ImageMetadata

Image metadata.

Implementations

impl FileHeader

pub fn new_rgb(width: u32, height: u32) -> Self

Creates a new file header for an RGB image.

pub fn new_rgba(width: u32, height: u32) -> Self

Creates a new file header for an RGBA image.

pub fn new_gray(width: u32, height: u32) -> Self

Creates a new file header for a grayscale image.

pub fn new_rgb_lossy(width: u32, height: u32) -> Self

Creates a new file header for a lossy RGB image (VarDCT/XYB encoded).

pub fn write_signature(writer: &mut BitWriter) -> Result<()>

Writes the JXL signature.

pub fn write(&self, writer: &mut BitWriter) -> Result<()>

Writes the complete file header (signature + size + metadata + transform_data).

Trait Implementations

impl Clone for FileHeader

fn clone(&self) -> FileHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileHeader

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

Formats the value using the given formatter.