Trait FitnessDistance 

pub trait FitnessDistance<Subject> {
    type Error;

    // Required method
    fn fitness_distance(&self, subject: Subject) -> Result<f64, Self::Error>;
}

The function used to compute the “fitness distance” of a setting value of a MediaStreamTrack object.

W3C Spec Compliance

The trait corresponds to the “fitness distance” function in the W3C “Media Capture and Streams” spec.

Required Associated Types

type Error

The type returned in the event of a computation error.

Required Methods

fn fitness_distance(&self, subject: Subject) -> Result<f64, Self::Error>

Computes the fitness distance of the given subject in the range of 0.0..=1.0.

A distance of 0.0 denotes it maximally fit, one of 1.0 as maximally unfit.

Implementors

impl<'a> FitnessDistance<&'a MediaTrackSettings> for SanitizedMediaTrackConstraintSet

type Error = SettingsFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a MediaTrackSetting>> for ResolvedMediaTrackConstraint

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a bool>> for ResolvedValueConstraint<bool>

where bool: PartialEq<bool>,

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a bool>> for ResolvedValueRangeConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a bool>> for ResolvedValueRangeConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a bool>> for ResolvedValueSequenceConstraint<bool>

where bool: PartialEq<bool>,

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueRangeConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueRangeConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueSequenceConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a f64>> for ResolvedValueSequenceConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueRangeConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueRangeConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueSequenceConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a i64>> for ResolvedValueSequenceConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueConstraint<bool>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueConstraint<String>

where String: PartialEq<String>,

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueRangeConstraint<f64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueRangeConstraint<u64>

type Error = SettingFitnessDistanceError

impl<'a> FitnessDistance<Option<&'a String>> for ResolvedValueSequenceConstraint<String>

where String: PartialEq<String>,

type Error = SettingFitnessDistanceError