WebPConfig

Struct WebPConfig 

Source
pub struct WebPConfig {
Show 16 fields pub quality: u8, pub method: u8, pub lossless: bool, pub near_lossless: u8, pub segments: u8, pub sns_strength: u8, pub filter_strength: u8, pub filter_sharpness: u8, pub auto_filter: bool, pub alpha_compression: bool, pub alpha_filtering: u8, pub alpha_quality: u8, pub pass: u8, pub thread_count: usize, pub low_memory: bool, pub exact: bool,
}
Expand description

WebP encoding configuration

Fields§

§quality: u8

Quality factor (0-100, where 100 is best quality)

§method: u8

Compression method (0-6, where 0 is fastest, 6 is best compression)

§lossless: bool

Enable lossless compression

§near_lossless: u8

Near-lossless encoding quality (0-100, only with lossless=true)

§segments: u8

Number of segments (1-4)

§sns_strength: u8

Spatial noise shaping strength (0-100)

§filter_strength: u8

Filter strength (0-100)

§filter_sharpness: u8

Filter sharpness (0-7)

§auto_filter: bool

Enable auto-filter

§alpha_compression: bool

Alpha channel compression (true = compressed, false = uncompressed)

§alpha_filtering: u8

Alpha filtering level (0-2)

§alpha_quality: u8

Alpha quality (0-100)

§pass: u8

Number of entropy-analysis passes (1-10)

§thread_count: usize

Thread count (0 = auto-detect)

§low_memory: bool

Enable low memory mode

§exact: bool

Preserve RGB values under transparency

Implementations§

Source§

impl WebPConfig

Source

pub fn high_quality() -> Self

Create a high-quality preset

Source

pub fn fast() -> Self

Create a fast encoding preset

Source

pub fn lossless() -> Self

Create a lossless encoding preset

Source

pub fn balanced() -> Self

Create a balanced preset (good quality/speed tradeoff)

Source

pub fn validate(&self) -> Result<(), String>

Validate the configuration

Trait Implementations§

Source§

impl Clone for WebPConfig

Source§

fn clone(&self) -> WebPConfig

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for WebPConfig

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for WebPConfig

Source§

fn default() -> Self

Returns the “default value” for a type. 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> 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.