#[non_exhaustive]pub enum H265ScanTypeConversionMode {
Interlaced,
InterlacedOptimize,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against H265ScanTypeConversionMode
, 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 h265scantypeconversionmode = unimplemented!();
match h265scantypeconversionmode {
H265ScanTypeConversionMode::Interlaced => { /* ... */ },
H265ScanTypeConversionMode::InterlacedOptimize => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when h265scantypeconversionmode
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant H265ScanTypeConversionMode::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
H265ScanTypeConversionMode::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 H265ScanTypeConversionMode::NewFeature
is defined.
Specifically, when h265scantypeconversionmode
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on H265ScanTypeConversionMode::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. Use this setting for interlaced outputs, when your output frame rate is half of your input frame rate. In this situation, choose Optimized interlacing to create a better quality interlaced output. In this case, each progressive frame from the input corresponds to an interlaced field in the output. Keep the default value, Basic interlacing, for all other output frame rates. With basic interlacing, MediaConvert performs any frame rate conversion first and then interlaces the frames. When you choose Optimized interlacing and you set your output frame rate to a value that isn’t suitable for optimized interlacing, MediaConvert automatically falls back to basic interlacing. Required settings: To use optimized interlacing, you must set Telecine to None or Soft. You can’t use optimized interlacing for hard telecine outputs. You must also set Interlace mode to a value other than Progressive.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Interlaced
InterlacedOptimize
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 H265ScanTypeConversionMode
impl H265ScanTypeConversionMode
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 H265ScanTypeConversionMode
impl AsRef<str> for H265ScanTypeConversionMode
source§impl Clone for H265ScanTypeConversionMode
impl Clone for H265ScanTypeConversionMode
source§fn clone(&self) -> H265ScanTypeConversionMode
fn clone(&self) -> H265ScanTypeConversionMode
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for H265ScanTypeConversionMode
impl Debug for H265ScanTypeConversionMode
source§impl Display for H265ScanTypeConversionMode
impl Display for H265ScanTypeConversionMode
source§impl From<&str> for H265ScanTypeConversionMode
impl From<&str> for H265ScanTypeConversionMode
source§impl FromStr for H265ScanTypeConversionMode
impl FromStr for H265ScanTypeConversionMode
source§impl Hash for H265ScanTypeConversionMode
impl Hash for H265ScanTypeConversionMode
source§impl Ord for H265ScanTypeConversionMode
impl Ord for H265ScanTypeConversionMode
source§fn cmp(&self, other: &H265ScanTypeConversionMode) -> Ordering
fn cmp(&self, other: &H265ScanTypeConversionMode) -> 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 H265ScanTypeConversionMode
impl PartialEq for H265ScanTypeConversionMode
source§fn eq(&self, other: &H265ScanTypeConversionMode) -> bool
fn eq(&self, other: &H265ScanTypeConversionMode) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for H265ScanTypeConversionMode
impl PartialOrd for H265ScanTypeConversionMode
source§fn partial_cmp(&self, other: &H265ScanTypeConversionMode) -> Option<Ordering>
fn partial_cmp(&self, other: &H265ScanTypeConversionMode) -> 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 H265ScanTypeConversionMode
impl StructuralPartialEq for H265ScanTypeConversionMode
Auto Trait Implementations§
impl Freeze for H265ScanTypeConversionMode
impl RefUnwindSafe for H265ScanTypeConversionMode
impl Send for H265ScanTypeConversionMode
impl Sync for H265ScanTypeConversionMode
impl Unpin for H265ScanTypeConversionMode
impl UnwindSafe for H265ScanTypeConversionMode
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