Enum SpeedEffect 

pub enum SpeedEffect {
    Normal,
    FreezeFrame {
        at_frame: u64,
    },
    ConstantSpeed {
        factor: f32,
    },
    VariableSpeed {
        keyframes: Vec<(u64, f32)>,
    },
}

High-level description of a speed effect applied to a clip.

Use ClipSpeedController to map playhead frame numbers to source frame numbers under a given SpeedEffect.

Variants

Normal

Normal forward playback at 1× speed.

FreezeFrame

Freeze the output at the source frame at_frame for the entire clip duration.

Fields

at_frame: u64

Source frame index to hold.

ConstantSpeed

Constant speed change (factor > 1.0 = faster, < 1.0 = slower).

Fields

factor: f32

Speed multiplier. Must be > 0.

VariableSpeed

Variable (ramping) speed driven by a list of (output_frame, speed_factor) keyframes.

Speed is linearly interpolated between consecutive keyframes. Keyframes are assumed to be sorted by output_frame.

Fields

keyframes: Vec<(u64, f32)>

Keyframes as (output_frame, speed_factor) pairs, sorted ascending.

Trait Implementations

impl Clone for SpeedEffect

fn clone(&self) -> SpeedEffect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpeedEffect

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

Formats the value using the given formatter.

impl Default for SpeedEffect

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SpeedEffect

fn eq(&self, other: &SpeedEffect) -> 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 StructuralPartialEq for SpeedEffect