Struct Component

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pub struct Component {
    pub identifier: u8,
    pub horizontal_sampling_factor: u8,
    pub vertical_sampling_factor: u8,
    pub quantization_table_index: usize,
    pub dct_scale: usize,
    pub size: Dimensions,
    pub block_size: Dimensions,
}

Expand description

A JPEG image component (e.g., Y, Cb, Cr).

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§identifier: u8

Component identifier (1=Y, 2=Cb, 3=Cr in JFIF).

§horizontal_sampling_factor: u8

Horizontal sampling factor (1-4).

§vertical_sampling_factor: u8

Vertical sampling factor (1-4).

§quantization_table_index: usize

Index of the quantization table used by this component.

§dct_scale: usize

DCT scaling factor.

§size: Dimensions

Component dimensions in pixels.

§block_size: Dimensions

Component dimensions in 8x8 blocks.

Trait Implementations§

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impl Clone for Component

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fn clone(&self) -> Component

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

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impl Debug for Component

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for Component

Blanket Implementations§

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

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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

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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 for T
where 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> IntoEither for T

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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

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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

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