#[non_exhaustive]pub enum DashIsoGroupAudioChannelConfigSchemeIdUri {
DolbyChannelConfiguration,
MpegChannelConfiguration,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against DashIsoGroupAudioChannelConfigSchemeIdUri
, 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 dashisogroupaudiochannelconfigschemeiduri = unimplemented!();
match dashisogroupaudiochannelconfigschemeiduri {
DashIsoGroupAudioChannelConfigSchemeIdUri::DolbyChannelConfiguration => { /* ... */ },
DashIsoGroupAudioChannelConfigSchemeIdUri::MpegChannelConfiguration => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when dashisogroupaudiochannelconfigschemeiduri
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant DashIsoGroupAudioChannelConfigSchemeIdUri::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
DashIsoGroupAudioChannelConfigSchemeIdUri::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 DashIsoGroupAudioChannelConfigSchemeIdUri::NewFeature
is defined.
Specifically, when dashisogroupaudiochannelconfigschemeiduri
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on DashIsoGroupAudioChannelConfigSchemeIdUri::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 only when your audio codec is a Dolby one (AC3, EAC3, or Atmos) and your downstream workflow requires that your DASH manifest use the Dolby channel configuration tag, rather than the MPEG one. For example, you might need to use this to make dynamic ad insertion work. Specify which audio channel configuration scheme ID URI MediaConvert writes in your DASH manifest. Keep the default value, MPEG channel configuration, to have MediaConvert write this: urn:mpeg:mpegB:cicp:ChannelConfiguration. Choose Dolby channel configuration to have MediaConvert write this instead: tag:dolby.com,2014:dash:audio_channel_configuration:2011.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
DolbyChannelConfiguration
MpegChannelConfiguration
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 DashIsoGroupAudioChannelConfigSchemeIdUri
impl DashIsoGroupAudioChannelConfigSchemeIdUri
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 Clone for DashIsoGroupAudioChannelConfigSchemeIdUri
impl Clone for DashIsoGroupAudioChannelConfigSchemeIdUri
source§fn clone(&self) -> DashIsoGroupAudioChannelConfigSchemeIdUri
fn clone(&self) -> DashIsoGroupAudioChannelConfigSchemeIdUri
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Ord for DashIsoGroupAudioChannelConfigSchemeIdUri
impl Ord for DashIsoGroupAudioChannelConfigSchemeIdUri
source§fn cmp(&self, other: &DashIsoGroupAudioChannelConfigSchemeIdUri) -> Ordering
fn cmp(&self, other: &DashIsoGroupAudioChannelConfigSchemeIdUri) -> 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 DashIsoGroupAudioChannelConfigSchemeIdUri
impl PartialEq for DashIsoGroupAudioChannelConfigSchemeIdUri
source§fn eq(&self, other: &DashIsoGroupAudioChannelConfigSchemeIdUri) -> bool
fn eq(&self, other: &DashIsoGroupAudioChannelConfigSchemeIdUri) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for DashIsoGroupAudioChannelConfigSchemeIdUri
impl PartialOrd for DashIsoGroupAudioChannelConfigSchemeIdUri
source§fn partial_cmp(
&self,
other: &DashIsoGroupAudioChannelConfigSchemeIdUri
) -> Option<Ordering>
fn partial_cmp( &self, other: &DashIsoGroupAudioChannelConfigSchemeIdUri ) -> 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 DashIsoGroupAudioChannelConfigSchemeIdUri
impl StructuralPartialEq for DashIsoGroupAudioChannelConfigSchemeIdUri
Auto Trait Implementations§
impl Freeze for DashIsoGroupAudioChannelConfigSchemeIdUri
impl RefUnwindSafe for DashIsoGroupAudioChannelConfigSchemeIdUri
impl Send for DashIsoGroupAudioChannelConfigSchemeIdUri
impl Sync for DashIsoGroupAudioChannelConfigSchemeIdUri
impl Unpin for DashIsoGroupAudioChannelConfigSchemeIdUri
impl UnwindSafe for DashIsoGroupAudioChannelConfigSchemeIdUri
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