Struct RateBuffer 

pub struct RateBuffer { /* private fields */ }

Rate buffer using leaky bucket model.

The buffer simulates an encoder’s output buffer:

• Bits are added when frames are encoded
• Bits are removed at a constant rate (target bitrate)

Implementations

impl RateBuffer

pub fn new(capacity: u64, initial_fullness: f32) -> Self

Create a new rate buffer.

Arguments

• capacity - Buffer size in bits
• initial_fullness - Initial fill level as fraction (0.0-1.0)

pub fn add_bits(&mut self, bits: u64) -> u64

Add bits to the buffer (frame encoded).

Returns the number of bits that overflowed (couldn’t fit).

pub fn remove_bits(&mut self, bits: u64) -> u64

Remove bits from the buffer (drain at target bitrate).

Returns the number of bits that underflowed (buffer went negative).

pub fn level(&self) -> u64

Get current buffer level in bits.

pub fn capacity(&self) -> u64

Get buffer capacity in bits.

pub fn fullness(&self) -> f32

Get buffer fullness as fraction (0.0-1.0).

pub fn available_space(&self) -> u64

Get available space in bits.

pub fn is_empty(&self) -> bool

Check if buffer is empty.

pub fn is_full(&self) -> bool

Check if buffer is full.

pub fn reset(&mut self)

Reset buffer to initial state.

pub fn set_level(&mut self, level: u64)

Set buffer level directly (use with caution).

Trait Implementations

impl Clone for RateBuffer

fn clone(&self) -> RateBuffer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RateBuffer

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

Formats the value using the given formatter.

impl Default for RateBuffer

fn default() -> Self

Returns the “default value” for a type.