Struct MediaTime 

pub struct MediaTime {
    nanos: i64,
}

One point on the media timeline. Resolution is nanoseconds.

Fields

nanos: i64

Implementations

impl MediaTime

pub const ZERO: Self

Time zero — the timeline origin.

pub const fn from_nanos(nanos: i64) -> Self

Construct from raw nanoseconds since origin (can be negative).

pub fn from_seconds(s: f64) -> Self

Construct from seconds since origin (f64).

pub fn from_sample(index: u64, sample_rate: u32) -> Self

Construct from an audio sample index at a given sample rate.

MediaTime::from_sample(48_000, 48_000) == 1 s.

pub fn from_frame(index: u64, frame_rate: f64) -> Self

Construct from a video frame index at a given frame rate (fps).

MediaTime::from_frame(90, 30.0) == 3 s.

pub const fn as_nanos(self) -> i64

Raw nanoseconds since origin.

pub fn as_seconds(self) -> f64

Seconds since origin (f64).

pub fn to_sample(self, sample_rate: u32) -> i64

Audio sample index at a given rate, rounded to nearest.

Rounding (vs truncation) keeps from_sample ↔ to_sample exact round-trip for any sample rate that doesn’t divide 10⁹ evenly (e.g. 44_100 Hz produces non-integer nanoseconds per sample; truncating would drift -1 every sample).

MediaTime::from_seconds(1.0).to_sample(48_000) == 48_000.

pub fn to_frame(self, frame_rate: f64) -> i64

Video frame index at a given fps, rounded to nearest.

Same round-trip rationale as Self::to_sample.

Trait Implementations

impl Add<MediaDuration> for MediaTime

type Output = MediaTime

The resulting type after applying the + operator.

fn add(self, rhs: MediaDuration) -> Self

Performs the + operation.

impl Clone for MediaTime

fn clone(&self) -> MediaTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MediaTime

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

Formats the value using the given formatter.

impl Hash for MediaTime

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for MediaTime

fn cmp(&self, other: &MediaTime) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for MediaTime

fn eq(&self, other: &MediaTime) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for MediaTime

fn partial_cmp(&self, other: &MediaTime) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Sub<MediaDuration> for MediaTime

type Output = MediaTime

The resulting type after applying the - operator.

fn sub(self, rhs: MediaDuration) -> Self

Performs the - operation.

impl Sub for MediaTime

fn sub(self, rhs: MediaTime) -> MediaDuration

b - a returns the MediaDuration between two times.

type Output = MediaDuration

The resulting type after applying the - operator.

impl Copy for MediaTime

impl Eq for MediaTime

impl StructuralPartialEq for MediaTime