Struct QpDeltaMap 

pub struct QpDeltaMap {
    pub cols: usize,
    pub rows: usize,
    pub deltas: Vec<i8>,
}

A QP delta map for a single frame, organized by CTU blocks.

Fields

cols: usize

Number of CTU columns.

rows: usize

Number of CTU rows.

deltas: Vec<i8>

QP deltas, stored row-major.

Implementations

impl QpDeltaMap

pub fn new(cols: usize, rows: usize) -> Self

Creates a new zero-filled QP delta map.

pub fn get(&self, col: usize, row: usize) -> i8

Gets the delta for a specific CTU.

pub fn set(&mut self, col: usize, row: usize, delta: i8)

Sets the delta for a specific CTU.

pub fn average_delta(&self) -> f64

Returns the average delta across the map.

pub fn active_ctu_count(&self) -> usize

Returns the number of CTUs with non-zero deltas.

pub fn merge_additive(&mut self, other: &Self, max_magnitude: i8)

Merges another QP delta map, adding deltas element-wise with clamping.

Trait Implementations

impl Clone for QpDeltaMap

fn clone(&self) -> QpDeltaMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QpDeltaMap

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

Formats the value using the given formatter.