Struct Colorimetry 

pub struct Colorimetry {
    pub space: Option<ColorSpace>,
    pub transfer: Option<ColorTransfer>,
    pub encoding: Option<ColorEncoding>,
    pub range: Option<ColorRange>,
}

Full 4-axis colorimetry. Each axis is Option; None means “undefined” and is never auto-filled — consumers (e.g. convert()) resolve missing axes at use-time without mutating the value.

Fields

space: Option<ColorSpace>

transfer: Option<ColorTransfer>

encoding: Option<ColorEncoding>

range: Option<ColorRange>

Implementations

impl Colorimetry

pub fn jfif() -> Self

JPEG/JFIF colorimetry: sRGB primaries, sRGB transfer, BT.601 encoding, full range.

pub fn from_v4l2(colorspace: u32, xfer: u32, ycbcr_enc: u32, quant: u32) -> Self

Build from the four raw V4L2 colorimetry integers.

Explicit values map directly. For ycbcr_enc/quantization, the V4L2 DEFAULT (0) sentinel does NOT mean “unknown” — it means “derive from the colorspace” (kernel V4L2_MAP_YCBCR_ENC_DEFAULT / V4L2_MAP_QUANTIZATION_DEFAULT). So a recognised colorspace resolves those axes here (e.g. V4L2_COLORSPACE_JPEG → BT.601 full-range) rather than leaving them None and falling through to the at-use height heuristic (which would wrongly pick BT.709/limited for an HD JPEG frame). A DEFAULT/unrecognised colorspace still yields None (deferred to the heuristic); unrecognised non-default values also map to None.

pub fn with_space(self, s: ColorSpace) -> Self

Set color primaries (consuming builder).

pub fn with_transfer(self, t: ColorTransfer) -> Self

Set transfer function (consuming builder).

pub fn with_encoding(self, e: ColorEncoding) -> Self

Set YCbCr encoding matrix (consuming builder).

pub fn with_range(self, r: ColorRange) -> Self

Set quantization range (consuming builder).

Trait Implementations

impl Clone for Colorimetry

fn clone(&self) -> Colorimetry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Colorimetry

impl Debug for Colorimetry

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

Formats the value using the given formatter.

impl Default for Colorimetry

fn default() -> Colorimetry

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Colorimetry

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Colorimetry

impl Hash for Colorimetry

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Colorimetry

fn eq(&self, other: &Colorimetry) -> 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 Serialize for Colorimetry

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 Colorimetry