Struct FrameDesc 

pub struct FrameDesc<'a> {
    pub time: MediaTime,
    pub background: Rgb,
    pub blend_space: BlendSpace,
    pub visual: Vec<ActiveClip<'a>>,
    pub audio: Vec<ActiveClip<'a>>,
    pub transitions: Vec<ActiveTransition<'a>>,
    pub captions: Vec<ActiveCaption<'a>>,
}

A timestamp-specific composition description with no GPU handles.

Identities and authored effects are borrowed from the crate::ActiveIndex that produced the description, so evaluating a frame copies none of them. 'a is the index’s borrow; clone what must outlive it.

Fields

time: MediaTime

Timestamp evaluated on the project timeline.

background: Rgb

Opaque color under every visual layer.

blend_space: BlendSpace

The space in which blend modes are evaluated.

visual: Vec<ActiveClip<'a>>

Active visual clips in composition order.

audio: Vec<ActiveClip<'a>>

Active audio clips in mix order.

transitions: Vec<ActiveTransition<'a>>

Active two-input transitions in track order.

captions: Vec<ActiveCaption<'a>>

The cue each caption track shows, in track order.

Implementations

impl FrameDesc<'_>

pub fn draws(&self, clip: &ActiveClip<'_>) -> bool

Whether the frame draws clip’s picture anywhere: as itself, or, for another clip’s matte (ActiveClip::is_matte), into an active clip that names it. A matte no active clip names is drawn nowhere, so nothing of it is needed.

Trait Implementations

impl<'a> Clone for FrameDesc<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for FrameDesc<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for FrameDesc<'a>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a> StructuralPartialEq for FrameDesc<'a>