Struct ColorMetadata 

pub struct ColorMetadata {
    pub primaries: ColorPrimaries,
    pub transfer: TransferFunction,
    pub matrix: ColorMatrix,
    pub range: ColorRange,
    pub dynamic_range: DynamicRange,
}

Host-independent video color description.

Fields

primaries: ColorPrimaries

RGB chromaticity standard.

transfer: TransferFunction

Nonlinear transfer curve.

matrix: ColorMatrix

YUV-to-RGB coefficient family, or RGB for already converted sources.

range: ColorRange

Encoded component range.

dynamic_range: DynamicRange

SDR or HDR signal classification: HDR exactly when transfer is PQ or HLG (Self::is_consistent).

Implementations

impl ColorMetadata

pub const EXPORT: Self

What every SDR export is encoded as and tagged with: BT.709 primaries, transfer, and matrix, in limited range.

The working space is display-referred: export encodes it with the sRGB curve, the exact inverse of how every SDR input is linearized, and tags the result BT.709, as SDR video is. Every export path, native and browser, packs and tags from this one value.

pub const UNDECLARED: Self = Self::EXPORT

What a source that declares no color is decoded as: BT.709 limited SDR. The fallback is reported: the renderer’s ColorDiagnostic::MissingMetadataFallback for a frame without a color, and conform’s undeclared_color for a video whose color neither the project nor its media declares.

pub const fn is_hdr(self) -> bool

Whether the signal is HDR: carried by a PQ or HLG transfer, or classified so. The one rule every consumer decides HDR by: lint, conform, the renderer, and the native decoders and encoders. For a consistent value (Self::is_consistent) the two fields agree.

pub const fn is_consistent(self) -> bool

Whether dynamic_range says what transfer does: HDR exactly when the transfer is PQ or HLG. A project declaring or recording a color that is not is refused, so no consumer has to choose between them.

Trait Implementations

impl Clone for ColorMetadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ColorMetadata

impl Debug for ColorMetadata

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

Formats the value using the given formatter.

impl Default for ColorMetadata

fn default() -> Self

Self::UNDECLARED.

impl<'de> Deserialize<'de> for ColorMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ColorMetadata

impl PartialEq for ColorMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ColorMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ColorMetadata