Enum aws_sdk_mediaconvert::types::Vc3Telecine
source · #[non_exhaustive]pub enum Vc3Telecine {
Hard,
None,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Vc3Telecine
, it is important to ensure
your code is forward-compatible. That is, if a match arm handles a case for a
feature that is supported by the service but has not been represented as an enum
variant in a current version of SDK, your code should continue to work when you
upgrade SDK to a future version in which the enum does include a variant for that
feature.
Here is an example of how you can make a match expression forward-compatible:
# let vc3telecine = unimplemented!();
match vc3telecine {
Vc3Telecine::Hard => { /* ... */ },
Vc3Telecine::None => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when vc3telecine
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Vc3Telecine::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Vc3Telecine::Unknown(UnknownVariantValue("NewFeature".to_owned()))
and calling as_str
on it yields "NewFeature"
.
This match expression is forward-compatible when executed with a newer
version of SDK where the variant Vc3Telecine::NewFeature
is defined.
Specifically, when vc3telecine
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Vc3Telecine::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms. When you do frame rate conversion from 23.976 frames per second (fps) to 29.97 fps, and your output scan type is interlaced, you can optionally enable hard telecine to create a smoother picture. When you keep the default value, None, MediaConvert does a standard frame rate conversion to 29.97 without doing anything with the field polarity to create a smoother picture.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Hard
None
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl Vc3Telecine
impl Vc3Telecine
source§impl Vc3Telecine
impl Vc3Telecine
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for Vc3Telecine
impl AsRef<str> for Vc3Telecine
source§impl Clone for Vc3Telecine
impl Clone for Vc3Telecine
source§fn clone(&self) -> Vc3Telecine
fn clone(&self) -> Vc3Telecine
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for Vc3Telecine
impl Debug for Vc3Telecine
source§impl Display for Vc3Telecine
impl Display for Vc3Telecine
source§impl From<&str> for Vc3Telecine
impl From<&str> for Vc3Telecine
source§impl FromStr for Vc3Telecine
impl FromStr for Vc3Telecine
source§impl Hash for Vc3Telecine
impl Hash for Vc3Telecine
source§impl Ord for Vc3Telecine
impl Ord for Vc3Telecine
source§fn cmp(&self, other: &Vc3Telecine) -> Ordering
fn cmp(&self, other: &Vc3Telecine) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for Vc3Telecine
impl PartialEq for Vc3Telecine
source§fn eq(&self, other: &Vc3Telecine) -> bool
fn eq(&self, other: &Vc3Telecine) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Vc3Telecine
impl PartialOrd for Vc3Telecine
source§fn partial_cmp(&self, other: &Vc3Telecine) -> Option<Ordering>
fn partial_cmp(&self, other: &Vc3Telecine) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for Vc3Telecine
impl StructuralPartialEq for Vc3Telecine
Auto Trait Implementations§
impl Freeze for Vc3Telecine
impl RefUnwindSafe for Vc3Telecine
impl Send for Vc3Telecine
impl Sync for Vc3Telecine
impl Unpin for Vc3Telecine
impl UnwindSafe for Vc3Telecine
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more