Skip to main content

ConstantQualityConfig

Struct ConstantQualityConfig 

Source
pub struct ConstantQualityConfig {
    pub quality: f32,
    pub content_adaptive: bool,
    pub min_colors: usize,
    pub max_colors: usize,
    pub loop_count: u16,
}
Expand description

Configuration for constant-quality GIF encoding.

The quality parameter drives all encoder decisions: colour depth, dithering, and quantisation algorithm. Content-adaptive overrides can be applied by calling ConstantQualityGifEncoder::resolve_with_metrics.

Fields§

§quality: f32

Target quality in [0.0, 1.0] (0 = smallest file, 1 = best fidelity).

§content_adaptive: bool

When true, run perceptual analysis and adapt parameters to image content.

§min_colors: usize

Minimum palette size (overrides quality-derived minimum).

§max_colors: usize

Maximum palette size (overrides quality-derived maximum).

§loop_count: u16

Animation loop count (0 = infinite).

Implementations§

Source§

impl ConstantQualityConfig

Source

pub fn new(quality: f32) -> Self

Create a new constant-quality configuration.

§Panics

Does not panic; invalid quality values produce a validation error in ConstantQualityGifEncoder::new.

Source

pub fn non_adaptive(self) -> Self

Disable content-adaptive analysis (fixed parameters from quality alone).

Source

pub fn with_min_colors(self, min: usize) -> Self

Override minimum colour count.

Source

pub fn with_max_colors(self, max: usize) -> Self

Override maximum colour count.

Trait Implementations§

Source§

impl Clone for ConstantQualityConfig

Source§

fn clone(&self) -> ConstantQualityConfig

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for ConstantQualityConfig

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.