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Snapshot

Struct Snapshot 

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pub struct Snapshot { /* private fields */ }
Expand description

A point-in-time view of the analyzer’s measurements.

Returned from Analyzer::snapshot.

All accessors return Option<f64>:

  • Some(value) when the requested mode was selected at build time and enough audio has been ingested for that measurement.
  • None when the mode wasn’t selected, or there isn’t enough data yet (for example, less than 400 ms of audio has been pushed for momentary loudness).

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impl Snapshot

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pub fn momentary_lufs(&self) -> Option<f64>

Momentary loudness (sliding 400 ms window) in LUFS.

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pub fn short_term_lufs(&self) -> Option<f64>

Short-term loudness (sliding 3 s window) in LUFS.

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pub fn integrated_lufs(&self) -> Option<f64>

Integrated (gated) loudness over the audio pushed so far, in LUFS.

Computing this involves a pass over the programme buffer; the analyzer caches the result and invalidates the cache when new audio is pushed, so polling at ~10 Hz from a real-time monitor is safe.

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pub fn true_peak_dbtp(&self) -> Option<f64>

Maximum true-peak observed so far, in dBTP.

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pub fn loudness_range_lu(&self) -> Option<f64>

Loudness range (95 % − 10 % of doubly-gated short-term values), in LU.

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pub fn programme_duration_seconds(&self) -> f64

Total duration of audio ingested, in seconds.

Trait Implementations§

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impl Clone for Snapshot

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fn clone(&self) -> Snapshot

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 Snapshot

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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 Default for Snapshot

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fn default() -> Snapshot

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Snapshot

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for Snapshot

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for Snapshot

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for Snapshot

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impl StructuralPartialEq for Snapshot

Auto Trait Implementations§

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<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 = Infallible

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

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,