Enum MetadataPolicy 

#[non_exhaustive]
pub enum MetadataPolicy {
    Preserve,
    StripPrivate,
}

How an encoder treats the metadata inherited from a source Image.

The ICC color profile is preserved under every policy — a WebP we emit never silently loses color-correctness — so a policy governs only the privacy-bearing Exif/XMP sidecars.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Preserve

Preserve all inherited metadata: ICC, Exif, and XMP. The default — kinder than cwebp, which strips metadata by default.

StripPrivate

Preserve the ICC color profile but strip the privacy-bearing Exif and XMP sidecars (they can embed GPS, timestamps, and device IDs).

Trait Implementations

impl Clone for MetadataPolicy

fn clone(&self) -> MetadataPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MetadataPolicy

impl Debug for MetadataPolicy

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

Formats the value using the given formatter.

impl Default for MetadataPolicy

fn default() -> MetadataPolicy

Returns the “default value” for a type.

impl Eq for MetadataPolicy

impl PartialEq for MetadataPolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MetadataPolicy