Enum aws_sdk_mediaconvert::types::VideoCodec
source · #[non_exhaustive]pub enum VideoCodec {
Show 14 variants
Av1,
AvcIntra,
FrameCapture,
H264,
H265,
Mpeg2,
Passthrough,
Prores,
Uncompressed,
Vc3,
Vp8,
Vp9,
Xavc,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against VideoCodec
, 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 videocodec = unimplemented!();
match videocodec {
VideoCodec::Av1 => { /* ... */ },
VideoCodec::AvcIntra => { /* ... */ },
VideoCodec::FrameCapture => { /* ... */ },
VideoCodec::H264 => { /* ... */ },
VideoCodec::H265 => { /* ... */ },
VideoCodec::Mpeg2 => { /* ... */ },
VideoCodec::Passthrough => { /* ... */ },
VideoCodec::Prores => { /* ... */ },
VideoCodec::Uncompressed => { /* ... */ },
VideoCodec::Vc3 => { /* ... */ },
VideoCodec::Vp8 => { /* ... */ },
VideoCodec::Vp9 => { /* ... */ },
VideoCodec::Xavc => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when videocodec
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant VideoCodec::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
VideoCodec::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 VideoCodec::NewFeature
is defined.
Specifically, when videocodec
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on VideoCodec::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. Type of video codec
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Av1
AvcIntra
FrameCapture
H264
H265
Mpeg2
Passthrough
Prores
Uncompressed
Vc3
Vp8
Vp9
Xavc
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 VideoCodec
impl VideoCodec
source§impl VideoCodec
impl VideoCodec
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 VideoCodec
impl AsRef<str> for VideoCodec
source§impl Clone for VideoCodec
impl Clone for VideoCodec
source§fn clone(&self) -> VideoCodec
fn clone(&self) -> VideoCodec
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for VideoCodec
impl Debug for VideoCodec
source§impl Display for VideoCodec
impl Display for VideoCodec
source§impl From<&str> for VideoCodec
impl From<&str> for VideoCodec
source§impl FromStr for VideoCodec
impl FromStr for VideoCodec
source§impl Hash for VideoCodec
impl Hash for VideoCodec
source§impl Ord for VideoCodec
impl Ord for VideoCodec
source§fn cmp(&self, other: &VideoCodec) -> Ordering
fn cmp(&self, other: &VideoCodec) -> 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 VideoCodec
impl PartialEq for VideoCodec
source§fn eq(&self, other: &VideoCodec) -> bool
fn eq(&self, other: &VideoCodec) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for VideoCodec
impl PartialOrd for VideoCodec
source§fn partial_cmp(&self, other: &VideoCodec) -> Option<Ordering>
fn partial_cmp(&self, other: &VideoCodec) -> 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 VideoCodec
impl StructuralPartialEq for VideoCodec
Auto Trait Implementations§
impl Freeze for VideoCodec
impl RefUnwindSafe for VideoCodec
impl Send for VideoCodec
impl Sync for VideoCodec
impl Unpin for VideoCodec
impl UnwindSafe for VideoCodec
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