#[non_exhaustive]pub enum XavcEntropyEncoding {
Auto,
Cabac,
Cavlc,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against XavcEntropyEncoding
, 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 xavcentropyencoding = unimplemented!();
match xavcentropyencoding {
XavcEntropyEncoding::Auto => { /* ... */ },
XavcEntropyEncoding::Cabac => { /* ... */ },
XavcEntropyEncoding::Cavlc => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when xavcentropyencoding
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant XavcEntropyEncoding::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
XavcEntropyEncoding::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 XavcEntropyEncoding::NewFeature
is defined.
Specifically, when xavcentropyencoding
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on XavcEntropyEncoding::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. Optional. Choose a specific entropy encoding mode only when you want to override XAVC recommendations. If you choose the value auto, MediaConvert uses the mode that the XAVC file format specifies given this output’s operating point.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Auto
Cabac
Cavlc
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 XavcEntropyEncoding
impl XavcEntropyEncoding
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 XavcEntropyEncoding
impl AsRef<str> for XavcEntropyEncoding
source§impl Clone for XavcEntropyEncoding
impl Clone for XavcEntropyEncoding
source§fn clone(&self) -> XavcEntropyEncoding
fn clone(&self) -> XavcEntropyEncoding
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for XavcEntropyEncoding
impl Debug for XavcEntropyEncoding
source§impl Display for XavcEntropyEncoding
impl Display for XavcEntropyEncoding
source§impl From<&str> for XavcEntropyEncoding
impl From<&str> for XavcEntropyEncoding
source§impl FromStr for XavcEntropyEncoding
impl FromStr for XavcEntropyEncoding
source§impl Hash for XavcEntropyEncoding
impl Hash for XavcEntropyEncoding
source§impl Ord for XavcEntropyEncoding
impl Ord for XavcEntropyEncoding
source§fn cmp(&self, other: &XavcEntropyEncoding) -> Ordering
fn cmp(&self, other: &XavcEntropyEncoding) -> 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 XavcEntropyEncoding
impl PartialEq for XavcEntropyEncoding
source§fn eq(&self, other: &XavcEntropyEncoding) -> bool
fn eq(&self, other: &XavcEntropyEncoding) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for XavcEntropyEncoding
impl PartialOrd for XavcEntropyEncoding
source§fn partial_cmp(&self, other: &XavcEntropyEncoding) -> Option<Ordering>
fn partial_cmp(&self, other: &XavcEntropyEncoding) -> 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 XavcEntropyEncoding
impl StructuralPartialEq for XavcEntropyEncoding
Auto Trait Implementations§
impl Freeze for XavcEntropyEncoding
impl RefUnwindSafe for XavcEntropyEncoding
impl Send for XavcEntropyEncoding
impl Sync for XavcEntropyEncoding
impl Unpin for XavcEntropyEncoding
impl UnwindSafe for XavcEntropyEncoding
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