Struct webp::Encoder

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pub struct Encoder<'a> { /* private fields */ }
Expand description

An encoder for WebP images. It uses the default configuration of libwebp.

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impl<'a> Encoder<'a>

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pub fn new( image: &'a [u8], layout: PixelLayout, width: u32, height: u32 ) -> Self

Creates a new encoder from the given image data. The image data must be in the pixel layout of the color parameter.

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pub fn from_image(image: &'a DynamicImage) -> Result<Self, &str>

Creates a new encoder from the given image.

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pub fn from_rgb(image: &'a [u8], width: u32, height: u32) -> Self

Creates a new encoder from the given image data in the RGB pixel layout.

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pub fn from_rgba(image: &'a [u8], width: u32, height: u32) -> Self

Creates a new encoder from the given image data in the RGBA pixel layout.

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pub fn encode(&self, quality: f32) -> WebPMemory

Encode the image with the given quality. The image quality must be between 0.0 and 100.0 inclusive for minimal and maximal quality respectively.

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pub fn encode_lossless(&self) -> WebPMemory

Encode the image losslessly.

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pub fn encode_simple( &self, lossless: bool, quality: f32 ) -> Result<WebPMemory, WebPEncodingError>

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pub fn encode_advanced( &self, config: &WebPConfig ) -> Result<WebPMemory, WebPEncodingError>

Trait Implementations§

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impl<'a> From<&'a AnimFrame<'a>> for Encoder<'a>

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fn from(f: &'a AnimFrame<'_>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Encoder<'a>

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impl<'a> Send for Encoder<'a>

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impl<'a> Sync for Encoder<'a>

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impl<'a> Unpin for Encoder<'a>

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impl<'a> UnwindSafe for Encoder<'a>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.