Struct evdi::UnrecognizedFourcc

pub struct UnrecognizedFourcc(pub u32);

Wraps some u32 that isn’t a DRM fourcc we recognize

// Get the u32
assert_eq!(UnrecognizedFourcc(42).0, 42);

// Get the string form
assert_eq!(UnrecognizedFourcc(828601953).string_form(), Some("avc1".to_string()));
assert_eq!(UnrecognizedFourcc(0).string_form(), None);

Tuple Fields

0: u32

Implementations

impl UnrecognizedFourcc

pub fn string_form(&self) -> Option<String>

If the u32 is in a valid format to be a fourcc, get its string form.

Note that this requires the std feature to be enabled. The [display] method is an alternative that does not require this dependency.

pub fn display(&self) -> Option<impl Display>

If the u32 is in a valid format to be a fourcc, get an opaque type to display it.

This can be treated as a slightly generalized form of [string_form] that is also available when the crate does not depend on the standard or alloc crate.

assert!(UnrecognizedFourcc(828601953).display().is_some());
assert!(UnrecognizedFourcc(0).display().is_none());

Trait Implementations

impl Clone for UnrecognizedFourcc

fn clone(&self) -> UnrecognizedFourcc

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UnrecognizedFourcc

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for UnrecognizedFourcc

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for UnrecognizedFourcc

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl PartialEq<UnrecognizedFourcc> for UnrecognizedFourcc

fn eq(&self, other: &UnrecognizedFourcc) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for UnrecognizedFourcc

impl Eq for UnrecognizedFourcc

impl StructuralEq for UnrecognizedFourcc

impl StructuralPartialEq for UnrecognizedFourcc