Struct Hdr10PlusDynamicMeta 

pub struct Hdr10PlusDynamicMeta {
    pub application_version: u8,
    pub targeted_system_display_max_luminance: u16,
    pub average_maxrgb: f64,
    pub maxrgb_percentiles: Vec<(u8, f64)>,
    pub fraction_bright_pixels: f64,
    pub knee_point: (f64, f64),
    pub bezier_curve_anchors: Vec<f64>,
}

HDR10+ dynamic metadata for a single scene or frame.

HDR10+ (SMPTE ST 2094-40) carries per-scene tone-mapping information as SEI messages in HEVC or metadata OBUs in AV1.

Fields

application_version: u8

Application version (currently 0 or 1).

targeted_system_display_max_luminance: u16

Targeted system display maximum luminance (in cd/m²).

average_maxrgb: f64

Average maxRGB of the scene (0.0–1.0 normalised to peak).

maxrgb_percentiles: Vec<(u8, f64)>

Distribution maxRGB percentile values (up to 9).

fraction_bright_pixels: f64

Fraction of selected area pixels.

knee_point: (f64, f64)

Knee point (x, y) for the tone-mapping curve.

bezier_curve_anchors: Vec<f64>

Bezier curve anchors for tone-mapping (0–9 points).

Implementations

impl Hdr10PlusDynamicMeta

pub fn new(targeted_max_lum: u16) -> Self

Creates a new HDR10+ dynamic metadata descriptor with sensible defaults.

pub fn validate(&self) -> Result<(), HdrError>

Validates the HDR10+ metadata fields.

Errors

Returns HdrError::OutOfRange if any field is outside legal range.

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

Serialises HDR10+ dynamic metadata into a simplified binary payload.

Layout (variable length):

• 1 byte: application_version
• 2 bytes: targeted_system_display_max_luminance (u16 BE)
• 2 bytes: average_maxrgb (u16 BE, value * 10000)
• 2 bytes: fraction_bright_pixels (u16 BE, value * 10000)
• 2 bytes: knee_point_x (u16 BE, value * 10000)
• 2 bytes: knee_point_y (u16 BE, value * 10000)
• 1 byte: number of bezier anchors
• N * 2 bytes: anchor values (u16 BE, value * 10000)

pub fn decode(buf: &[u8]) -> Result<Self, HdrError>

Decodes HDR10+ dynamic metadata from a binary payload.

Errors

Returns HdrError::MissingField if the buffer is too short.

Trait Implementations

impl Clone for Hdr10PlusDynamicMeta

fn clone(&self) -> Hdr10PlusDynamicMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hdr10PlusDynamicMeta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Hdr10PlusDynamicMeta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Hdr10PlusDynamicMeta

fn eq(&self, other: &Hdr10PlusDynamicMeta) -> 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 Hdr10PlusDynamicMeta

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 Hdr10PlusDynamicMeta