Struct WebpMetadata 

pub struct WebpMetadata<'a> {
    pub icc: Option<&'a [u8]>,
    pub exif: Option<&'a [u8]>,
    pub xmp: Option<&'a [u8]>,
}

Borrowed file-level metadata for the encode side — the §2.7.1.4 ICCP, §2.7.1.5 EXIF, and §2.7.1.5 XMP payloads to embed, each None to omit the corresponding chunk.

This is the borrowed form: the slices are not copied until the encoder frames them. The owned counterpart is WebpMetadataOwned. The default is all-None — embed no metadata — so a VP8L encode with WebpMetadata::default() emits the simple (non-VP8X) layout.

Fields

icc: Option<&'a [u8]>

§2.7.1.4 ICCP ICC color-profile payload to embed, if any.

exif: Option<&'a [u8]>

§2.7.1.5 EXIF Exif payload to embed, if any.

xmp: Option<&'a [u8]>

§2.7.1.5 XMP XMP payload to embed, if any.

Implementations

impl<'a> WebpMetadata<'a>

pub fn is_empty(&self) -> bool

True if every field is None — encoding can stay on the simple (non-VP8X) layout when no alpha is present either.

Trait Implementations

impl<'a> Clone for WebpMetadata<'a>

fn clone(&self) -> WebpMetadata<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for WebpMetadata<'a>

impl<'a> Debug for WebpMetadata<'a>

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

Formats the value using the given formatter.

impl<'a> Default for WebpMetadata<'a>

fn default() -> WebpMetadata<'a>

Returns the “default value” for a type.

impl<'a> Eq for WebpMetadata<'a>

impl<'a> PartialEq for WebpMetadata<'a>

fn eq(&self, other: &WebpMetadata<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> StructuralPartialEq for WebpMetadata<'a>