Struct RateControl 

pub struct RateControl { /* private fields */ }

Frame-level average-bitrate controller.

Implementations

impl RateControl

pub fn new(bitrate: u32, framerate: f32, qp: u8) -> Self

Builds a controller for bitrate bits/sec at framerate fps, with qp as the base/fallback quality. QP is clamped to a sane window around it.

pub fn pick_qp(&self, is_idr: bool, complexity: f64) -> u8

Picks the QP for a frame given its look-ahead complexity score (is_idr selects the I model and a quality bump, since every later frame predicts from the IDR).

pub fn update(&mut self, is_idr: bool, bits: usize, qp: u8, complexity: f64)

Feeds back the bits a frame actually cost at its chosen QP and complexity, recalibrating k = bits · Qstep / complexity and the average complexity.

Trait Implementations

impl Clone for RateControl

fn clone(&self) -> RateControl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RateControl

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

Formats the value using the given formatter.