Enum Downscale 

#[non_exhaustive]
pub enum Downscale {
    None,
    Half,
    Quarter,
    Eighth,
}

Power-of-two downscale requested during decode.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

Full-resolution output.

Half

Half-resolution output.

Quarter

Quarter-resolution output.

Eighth

Eighth-resolution output.

Implementations

impl Downscale

pub const fn denominator(self) -> u32

Return the integer scale denominator.

pub const fn output_block_size(self) -> u32

Return the decoded DCT block dimension after scaling.

Trait Implementations

impl Clone for Downscale

fn clone(&self) -> Downscale

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Downscale

impl Debug for Downscale

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

Formats the value using the given formatter.

impl Default for Downscale

fn default() -> Downscale

Returns the “default value” for a type.

impl Eq for Downscale

impl Hash for Downscale

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Downscale

fn eq(&self, other: &Downscale) -> 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 StructuralPartialEq for Downscale