Struct AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

#[repr(transparent)]
pub struct AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions(pub NSUInteger);

Available on crate feature AVCaptureDevice only.

These constants can be used and combined to control the conditions that allow fallback camera selection when the primaryConstituentDeviceSelectionBehavior is set to AVCapturePrimaryConstituentDeviceSwitchingBehaviorRestricted. Note that camera switching necessary to satisfy the requested zoom factor is still allowed.

Disallow fallback switching.

Restrict fallback camera switching to when the video zoom factor changes, either through AVCaptureDevice.videoZoomFactor or -[AVCaptureDevice rampToVideoZoomFactor:withRate:]. Note that any change in video zoom factor will allow a switch to a fallback camera, not just changes across switch-over zoom factors.

Restrict fallback camera switches to when AVCaptureDevice.focusMode is set.

Restrict fallback camera switches to when AVCaptureDevice.exposureMode is set.

Whenever triggered by one or more of the enabled conditions, the fallback camera switching waits for exposure and focus to stabilize before deciding which camera to use as the primary constituent device.

Whenever AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionVideoZoomChanged is not included in the restricted switching behavior conditions, AVCapturePrimaryConstituentDeviceSwitchingBehaviorRestricted still allows camera selection when a change in video zoom factor makes a camera eligible or ineligible to be selected as the activePrimaryConstituentDevice. When the video zoom factor decreases to below the switch-over zoom factor of the activePrimaryConstituentDevice, a different camera will be selected to satisfy the requested zoom factor. When the video zoom factor increases and crosses a camera’s switch-over zoom factor, this camera becomes eligible to be selected as the activePrimaryConstituentDevice. If exposure and focus allow, this camera then becomes the new activePrimaryConstituentDevice. Similar to the AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionVideoZoomChanged this also waits for exposure and focus to stabilize. Otherwise the activePrimaryConstituentDevice remains unchanged.

See also Apple’s documentation

Tuple Fields

0: NSUInteger

Implementations

impl AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

pub const None: Self

pub const VideoZoomChanged: Self

pub const FocusModeChanged: Self

pub const ExposureModeChanged: Self

impl AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

pub const fn empty() -> Self

Get a flags value with all bits unset.

pub const fn all() -> Self

Get a flags value with all known bits set.

pub const fn bits(&self) -> NSUInteger

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

pub const fn from_bits(bits: NSUInteger) -> Option<Self>

Convert from a bits value.

This method will return None if any unknown bits are set.

pub const fn from_bits_truncate(bits: NSUInteger) -> Self

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: NSUInteger) -> Self

Convert from a bits value exactly.

pub fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

pub const fn intersects(&self, other: Self) -> bool

Whether any set bits in a source flags value are also set in a target flags value.

pub const fn contains(&self, other: Self) -> bool

Whether all set bits in a source flags value are also set in a target flags value.

pub fn insert(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

pub fn remove(&mut self, other: Self)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

pub fn toggle(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

pub fn set(&mut self, other: Self, value: bool)

Call insert when value is true or remove when value is false.

pub const fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

pub const fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.

pub const fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

pub const fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

pub const fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

impl AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

pub const fn iter( &self, ) -> Iter<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

pub const fn iter_names( &self, ) -> IterNames<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

Trait Implementations

impl Binary for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Formats the value using the given formatter.

impl BitAnd for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitand(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

type Output = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The resulting type after applying the & operator.

impl BitAndAssign for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitand_assign(&mut self, other: Self)

The bitwise and (&) of the bits in two flags values.

impl BitOr for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitor( self, other: AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions, ) -> Self

The bitwise or (|) of the bits in two flags values.

type Output = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The resulting type after applying the | operator.

impl BitOrAssign for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitor_assign(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

impl BitXor for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitxor(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

type Output = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The resulting type after applying the ^ operator.

impl BitXorAssign for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn bitxor_assign(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

impl Clone for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn clone( &self, ) -> AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Formats the value using the given formatter.

impl Encode for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

const ENCODING: Encoding = NSUInteger::ENCODING

The Objective-C type-encoding for this type.

impl Extend<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions> for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

The bitwise or (|) of the bits in each flags value.

fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements.

impl Flags for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

const FLAGS: &'static [Flag<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions>]

The set of defined flags.

type Bits = usize

The underlying bits type.

fn bits(&self) -> NSUInteger

Get the underlying bits value.

fn from_bits_retain( bits: NSUInteger, ) -> AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

Convert from a bits value exactly.

fn empty() -> Self

Get a flags value with all bits unset.

fn all() -> Self

Get a flags value with all known bits set.

fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value.

fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.

fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

fn iter(&self) -> Iter<Self>

Yield a set of contained flags values.

fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values.

fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

fn intersects(&self, other: Self) -> bool

where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.

fn contains(&self, other: Self) -> bool

where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.

fn insert(&mut self, other: Self)

where Self: Sized,

The bitwise or (|) of the bits in two flags values.

fn remove(&mut self, other: Self)

where Self: Sized,

The intersection of a source flags value with the complement of a target flags value (&!).

fn toggle(&mut self, other: Self)

where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.

fn set(&mut self, other: Self, value: bool)

where Self: Sized,

Call Flags::insert when value is true or Flags::remove when value is false.

fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.

fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!).

fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

impl FromIterator<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions> for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

The bitwise or (|) of the bits in each flags value.

impl Hash for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoIterator for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

type Item = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The type of the elements being iterated over.

type IntoIter = Iter<AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl LowerHex for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Formats the value using the given formatter.

impl Not for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn not(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

type Output = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The resulting type after applying the ! operator.

impl Octal for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Formats the value using the given formatter.

impl Ord for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn cmp( &self, other: &AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions, ) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn partial_cmp( &self, other: &AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions, ) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RefEncode for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Sub for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn sub(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

type Output = AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

The resulting type after applying the - operator.

impl SubAssign for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

fn sub_assign(&mut self, other: Self)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

impl UpperHex for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

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

Formats the value using the given formatter.

impl Copy for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

impl Eq for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions

impl StructuralPartialEq for AVCapturePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditions