Struct RefFrameList 

pub struct RefFrameList { /* private fields */ }

A list of reference frames maintained in the decoded picture buffer.

Limits itself to max_size entries; oldest short-term frames are evicted when capacity is exceeded.

Implementations

impl RefFrameList

pub fn new(max_size: usize) -> Self

Creates a new empty reference frame list with the given capacity.

pub fn add(&mut self, frame: RefFrame) -> bool

Adds a reference frame to the list.

If the list is full, the oldest short-term reference is removed first. Returns false if no space could be made (all frames are long-term).

pub fn remove_oldest(&mut self) -> bool

Removes the oldest short-term reference frame (lowest frame_num).

Returns true if a frame was removed.

pub fn find_closest_poc(&self, target_poc: i32) -> Option<&RefFrame>

Finds the reference frame whose POC is closest to target_poc.

Returns None if the list is empty.

pub fn len(&self) -> usize

Returns the number of active reference frames in the list.

pub fn is_empty(&self) -> bool

Returns true if the list contains no active reference frames.

pub fn iter(&self) -> impl Iterator<Item = &RefFrame>

Returns an iterator over all active reference frames.

pub fn long_term_count(&self) -> usize

Returns the number of long-term reference frames.

pub fn short_term_count(&self) -> usize

Returns the number of short-term reference frames.

pub fn clear(&mut self)

Clears all reference frames from the list (used on IDR).

Trait Implementations

impl Debug for RefFrameList

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

Formats the value using the given formatter.