oximedia_codec::rate_control::scene_adaptive

Struct FrameContentMetrics

pub struct FrameContentMetrics {
    pub frame_index: u64,
    pub spatial_complexity: f32,
    pub temporal_complexity: f32,
    pub normalised_sad: f32,
    pub is_scene_cut: bool,
}

Expand description

Per-frame content metrics fed to the scene-adaptive allocator.

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§frame_index: u64

Frame index in presentation order.

§spatial_complexity: f32

Spatial complexity (0.0 = flat, 1.0 = maximally complex).

§temporal_complexity: f32

Temporal complexity (0.0 = no change, 1.0 = complete scene change).

§normalised_sad: f32

Average inter-frame SAD normalised to [0, 1].

§is_scene_cut: bool

True when a hard scene cut is suspected.

Implementations§

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impl FrameContentMetrics

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pub fn from_raw( frame_index: u64, spatial_var: f32, inter_frame_sad: f64, frame_pixels: u32, ) -> Self

Build metrics from raw pixel statistics.

§Arguments

frame_index – Presentation-order index
spatial_var – Spatial variance of the luma plane (raw value)
inter_frame_sad – Sum of absolute differences vs previous frame
frame_pixels – Total luma pixels in the frame

spatial_var and inter_frame_sad are normalised internally so that a value of 1.0 represents the worst-case / maximum-complexity signal.

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pub fn classify(&self) -> SceneContentType

Classify this frame’s content type.

Trait Implementations§

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impl Clone for FrameContentMetrics

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fn clone(&self) -> FrameContentMetrics

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for FrameContentMetrics

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for FrameContentMetrics

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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

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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

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