Struct Properties 

pub struct Properties { /* private fields */ }

The parsed contents of iprp.

Implementations

impl Properties

pub fn parse(iprp: Reader<'_>) -> Result<Self>

Parse an iprp box payload.

Errors

Returns PixelsError::Malformed if the box or any child is structurally invalid.

pub fn for_item(&self, item_id: u32) -> Vec<&Property>

Every property associated with item_id, in association order.

pub fn essential_unknown(&self, item_id: u32) -> Option<FourCc>

The type of the first essential property of item_id that this decoder does not interpret, if there is one.

An item with such a property must be reported PixelsError::Unsupported rather than decoded, because the property was declared to change the meaning of the pixels.

pub fn extents(&self, item_id: u32) -> Option<Extents>

The item’s dimensions, from its ispe.

pub fn av1_config(&self, item_id: u32) -> Option<&Av1Config>

The item’s AV1 configuration, from its av1C.

pub fn colour(&self, item_id: u32) -> Option<&Colour>

The item’s colour information, from its colr. An item may carry both an nclx and an ICC colr (libavif writes both when given a profile); the nclx is preferred, since it is what governs the YUV to RGB conversion.

pub fn icc_profile(&self, item_id: u32) -> Option<&[u8]>

The item’s ICC profile, from an ICC colr.

pub fn auxiliary_type(&self, item_id: u32) -> Option<&str>

The item’s auxiliary type URN, from its auxC.

pub fn orientation(&self, item_id: u32) -> Orientation

The item’s irot and imir properties, composed in association order, which is the order HEIF applies transformative properties in.

Trait Implementations

impl Clone for Properties

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Properties

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

Formats the value using the given formatter.

impl Default for Properties

fn default() -> Self

Returns the “default value” for a type.