Struct ColorEncoding 

pub struct ColorEncoding {
    pub primaries: Primaries,
    pub transfer: TransferFunction,
    pub matrix: MatrixCoefficients,
    pub full_range: bool,
}

CICP-style colour encoding: the primaries + transfer + matrix the image is authored in, plus the sample range. Drives both the HEIF colr (nclx) box and the HEVC VUI signalling.

Fields

primaries: Primaries

transfer: TransferFunction

matrix: MatrixCoefficients

full_range: bool

Implementations

impl ColorEncoding

pub const fn srgb() -> Self

sRGB: BT.709 primaries, sRGB transfer, BT.709 matrix, full range. This is the encoder’s working colour space (full-range BT.709 RGB→YCbCr).

pub const fn bt709() -> Self

BT.709 video: BT.709 primaries/transfer/matrix, full range.

pub const fn bt2020_pq() -> Self

BT.2020 PQ (HDR10): BT.2020 primaries, PQ transfer, BT.2020 NCL matrix.

pub fn nclx_payload(&self) -> Vec<u8>

The nclx payload for a HEIF colr box (without the box header): colour_type (‘nclx’) + the four CICP fields. The full_range_flag occupies the top bit of the final byte; the low 7 bits are reserved zero.

Trait Implementations

impl Clone for ColorEncoding

fn clone(&self) -> ColorEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColorEncoding

impl Debug for ColorEncoding

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

Formats the value using the given formatter.

impl Default for ColorEncoding

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ColorEncoding

impl PartialEq for ColorEncoding

fn eq(&self, other: &ColorEncoding) -> 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 StructuralPartialEq for ColorEncoding