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MemoryEstimate

Struct MemoryEstimate 

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pub struct MemoryEstimate {
    pub per_ref_frame: usize,
    pub ref_frames: usize,
    pub mb_arrays: usize,
    pub hpel_cache: usize,
    pub scratch: usize,
    pub total: usize,
}
Expand description

Bytes the encoder holds for a configuration, as a function of width and height, so a firmware can pick a picture size that fits before it is flashed. See EncoderConfig::memory_estimate.

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§per_ref_frame: usize

One reference picture: three coded-size (MB-aligned) reconstruction planes plus its per-4×4-block motion field.

§ref_frames: usize

Reference pictures held (num_ref_frames, at least one).

§mb_arrays: usize

Per-picture coder state: the reconstruction under construction, the non-zero-coefficient maps, per-macroblock mode and cost arrays.

§hpel_cache: usize

Half-pel plane cache, three filtered planes plus a padded copy per reference — built lazily and only when the search is not Preset::Fast, so the chip configuration never pays it.

§scratch: usize

Per-call scratch: the slice bit buffer, the access unit, and the source frames a lookahead, scene-cut detector or AQ probe retains.

§total: usize

The sum.

Trait Implementations§

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impl Clone for MemoryEstimate

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fn clone(&self) -> MemoryEstimate

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 Copy for MemoryEstimate

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impl Debug for MemoryEstimate

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

Formats the value using the given formatter. Read more
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impl Eq for MemoryEstimate

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impl PartialEq for MemoryEstimate

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for MemoryEstimate

Auto Trait 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<U> 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.