Struct Options 

pub struct Options {
    pub quality: i32,
    pub downsample: Downsample,
    pub alpha_option: AlphaOption,
    pub xmp_metadata: Vec<u8>,
    /* private fields */
}

Fields

quality: i32

quality must be in [0, 100] where 0 corresponds to the lowest quality.

downsample: Downsample

Choose the downsampling factor for the U and V components.

This is only meaningful if the src is not Gray, since Gray will not be encoded as YUV.

This is ignored in favor of src’s subsampling when src is an YUVAPixmaps.

alpha_option: AlphaOption

Jpegs must be opaque.

This instructs the encoder on how to handle input images with alpha. The default is to ignore the alpha channel and treat the image as opaque. Another option is to blend the pixels onto a black background before encoding. In the second case, the encoder supports linear or legacy blending.

xmp_metadata: Vec<u8>

Optional XMP metadata.

Trait Implementations

impl Clone for Options

fn clone(&self) -> Options

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Options

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

Formats the value using the given formatter.

impl Default for Options

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Options

fn eq(&self, other: &Options) -> 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 Eq for Options

impl StructuralPartialEq for Options