Exif

Enum Exif 

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pub enum Exif {
    Raw(Vec<u8>),
    Fields(ExifFields),
}
Expand description

EXIF metadata - either raw bytes or built from common fields.

Use Exif::raw for user-provided EXIF TIFF bytes, or Exif::build to construct EXIF from common fields like orientation and copyright.

The two modes are mutually exclusive at compile time - you cannot accidentally mix raw bytes with field-based building.

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Raw(Vec<u8>)

Raw EXIF TIFF bytes (without the Exif\0\0 APP1 prefix).

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Fields(ExifFields)

Built from common fields.

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impl Exif

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pub fn raw(bytes: impl Into<Vec<u8>>) -> Self

Create EXIF from raw TIFF bytes.

The bytes should be raw TIFF data without the Exif\0\0 APP1 prefix (the encoder adds that automatically).

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pub fn build() -> ExifFields

Start building EXIF from common fields.

Returns an ExifFields builder that can be chained with .orientation() and .copyright() methods.

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pub fn to_bytes(&self) -> Option<Vec<u8>>

Convert to raw TIFF bytes for embedding.

Returns None if no fields are set (for the Fields variant).

Trait Implementations§

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impl Clone for Exif

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fn clone(&self) -> Exif

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 Exif

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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 From<ExifFields> for Exif

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fn from(fields: ExifFields) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl Freeze for Exif

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impl RefUnwindSafe for Exif

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impl Send for Exif

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impl Sync for Exif

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impl Unpin for Exif

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impl UnwindSafe for Exif

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where 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 T
where 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.