Enum TrackKind 

pub enum TrackKind {
    Video,
    Audio,
    Subtitle,
    Data,
    Attachment,
    Unknown,
}

What a track carries.

A closed roster: these six are every kind a container can present, and Unknown is the honest answer for a track the backend cannot classify rather than an escape hatch for new kinds. Minted here rather than borrowed: mediaframe has a track disposition vocabulary but no kind vocabulary, and the dependency direction forbids reaching the other way.

Cover art is Attachment, not Video. A still image stored in a container’s video-shaped slot is an attachment by every property that matters — one sample, no timeline, no motion — so the Video arm carries true motion video and nothing else. See DemuxedPacket for the delivery contract that follows from this.

Variants

Video

Motion video.

Audio

Audio.

Subtitle

Subtitles / captions, text or bitmap.

Data

Timed opaque data — timecode, KLV, timed ID3.

Attachment

A file carried inside the container: a font, cover art.

Unknown

The backend could not classify this track.

Implementations

impl TrackKind

pub const fn is_video(&self) -> bool

Returns true if this value is of type Video. Returns false otherwise

pub const fn is_audio(&self) -> bool

Returns true if this value is of type Audio. Returns false otherwise

pub const fn is_subtitle(&self) -> bool

Returns true if this value is of type Subtitle. Returns false otherwise

pub const fn is_data(&self) -> bool

Returns true if this value is of type Data. Returns false otherwise

pub const fn is_attachment(&self) -> bool

Returns true if this value is of type Attachment. Returns false otherwise

pub const fn is_unknown(&self) -> bool

Returns true if this value is of type Unknown. Returns false otherwise

Trait Implementations

impl Clone for TrackKind

fn clone(&self) -> TrackKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TrackKind

impl Debug for TrackKind

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

Formats the value using the given formatter.

impl Default for TrackKind

fn default() -> TrackKind

Returns the “default value” for a type.

impl Eq for TrackKind

impl Hash for TrackKind

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 TrackKind

fn cmp(&self, other: &TrackKind) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for TrackKind

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for TrackKind

fn partial_cmp(&self, other: &TrackKind) -> 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 StructuralPartialEq for TrackKind