Struct Info

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pub struct Info {
    pub dimensions: (u32, u32),
    pub color_space: ColorSpace,
    pub sampling: SamplingFactors,
    pub sof_kind: SofKind,
    pub bit_depth: u8,
    pub restart_interval: Option<u16>,
    pub mcu_geometry: McuGeometry,
    pub scan_count: u16,
}

Expand description

Header-derived image metadata. Populated by Decoder::inspect and by Decoder::new. scan_count is the number of SOS markers observed in the input — for sequential this is always 1; for progressive it is the count of refinement passes.

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§dimensions: (u32, u32)

Image dimensions as (width, height) in pixels.

§color_space: ColorSpace

Header-derived color space after APP14 transform handling.

§sampling: SamplingFactors

Per-component sampling factors from the SOF marker.

§sof_kind: SofKind

Start-of-frame variant that selects the decode pipeline.

§bit_depth: u8

Sample precision in bits.

§restart_interval: Option<u16>

Restart interval in MCUs, if a DRI marker was present.

§mcu_geometry: McuGeometry

Derived MCU geometry for the image.

§scan_count: u16

Number of SOS markers observed in the stream.

Implementations§

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impl Info

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pub fn to_core_info(&self) -> Info

Convert JPEG metadata into the codec-neutral core metadata type.

Trait Implementations§

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impl Clone for Info

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fn clone(&self) -> Info

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for Info

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

Formats the value using the given formatter. Read more

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impl Eq for Info

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impl PartialEq for Info

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fn eq(&self, other: &Info) -> bool

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

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impl StructuralPartialEq for Info

Auto Trait Implementations§

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impl UnwindSafe for Info

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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