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CoeffPos

phasm_core::stego::permute

Struct CoeffPos 

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pub struct CoeffPos {
    pub flat_idx: u32,
    pub cost: f32,
}
Expand description

A coefficient position: (flat_index, cost).

Compact representation: u32 flat index (supports up to ~268M blocks = 4 Gpx) and f32 cost (sufficient for cost ranking). Total: 8 bytes per position (down from 16 bytes with usize + f64).

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§flat_idx: u32

Flat index into the coefficient grid. For JPEG: block_index * 64 + row * 8 + col. For HEVC: TU-relative index (defined by video pipeline).

§cost: f32

Embedding cost at this position (f32 — sufficient for ranking).

Trait Implementations§

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impl Clone for CoeffPos

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fn clone(&self) -> CoeffPos

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more

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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

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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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type Output = T

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type Owned = T

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type Error = Infallible

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fn vzip(self) -> V