Struct CbrController 

pub struct CbrController { /* private fields */ }

Constant Bitrate rate controller.

Uses a leaky bucket model to maintain constant bitrate output.

Implementations

impl CbrController

pub fn new(config: &RcConfig) -> Self

Create a new CBR controller from configuration.

pub fn set_qp_gain(&mut self, gain: f32)

Set the QP adjustment gain factor.

pub fn set_allow_frame_drop(&mut self, allow: bool)

Enable or disable frame dropping.

pub fn get_rc(&mut self, frame_type: FrameType) -> RcOutput

Get rate control output for a frame.

pub fn update(&mut self, stats: &FrameStats)

Update controller with frame statistics.

pub fn buffer_fullness(&self) -> f32

Get current buffer fullness (0.0 - 1.0).

pub fn buffer_level(&self) -> u64

Get current buffer level in bits.

pub fn average_bitrate(&self, elapsed_seconds: f64) -> f64

Get average bitrate achieved.

pub fn short_term_bitrate(&self, fps: f64) -> f64

Get short-term bitrate (over recent frames).

pub fn target_bitrate(&self) -> u64

Get target bitrate.

pub fn frame_count(&self) -> u64

Get frame count.

pub fn frames_dropped(&self) -> u64

Get frames dropped.

pub fn current_qp(&self) -> f32

Get current QP.

pub fn reset(&mut self)

Reset the controller state.

pub fn is_overflow_risk(&self) -> bool

Check if buffer is in overflow danger zone.

pub fn is_underflow_risk(&self) -> bool

Check if buffer is in underflow danger zone.

Trait Implementations

impl Clone for CbrController

fn clone(&self) -> CbrController

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CbrController

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

Formats the value using the given formatter.

impl Default for CbrController

fn default() -> Self

Returns the “default value” for a type.

impl RateController for CbrController

fn get_output(&mut self, frame_type: FrameType, _complexity: f32) -> RcOutput

Get rate control output for a frame.

fn update_stats(&mut self, stats: &FrameStats)

Update controller with frame encoding results.

fn reset(&mut self)

Reset the controller state.

fn current_qp(&self) -> f32

Get the current QP value.

fn frame_count(&self) -> u64

Get total frames processed.

fn total_bits(&self) -> u64

Get total bits produced.