Struct DtsCalculator

Source

pub struct DtsCalculator { /* private fields */ }

Expand description

Standalone DTS calculator.

Given a sequence of (pts, is_keyframe) pairs, produces DTS values that are:

Strictly non-decreasing.
Always ≤ the corresponding PTS.
Separated by at least min_delta timebase units.

Useful when you already have the full frame sequence and want to annotate DTS in batch (e.g. when writing container mux metadata).

Implementations§

Source §

impl DtsCalculator

Source

pub fn new(min_delta: i64, max_b_frames: usize) -> CodecResult<Self>

Create a new calculator.

min_delta must be > 0.

Source

pub fn next(&mut self, pts: i64, _is_keyframe: bool) -> i64

Compute DTS for a single frame in sequence order.

The first call initialises the internal counter from pts minus the B-frame pre-roll offset.

Source

pub fn compute_batch(&mut self, frames: &[(i64, bool)]) -> Vec<i64>

Compute DTS for a batch of (pts, is_keyframe) pairs.

Returns a Vec<i64> of the same length.

Source

pub fn reset(&mut self)

Reset the internal counter so a new sequence can be processed.

Trait Implementations§

Source §

impl Debug for DtsCalculator

Source §

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl UnwindSafe for DtsCalculator

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §