Struct drm_fourcc::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

Formats the value using the given formatter.

impl Display for UnrecognizedFourcc

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

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 backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

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: &UnrecognizedFourcc) -> bool

This method tests for !=.

impl Copy for UnrecognizedFourcc

impl Eq for UnrecognizedFourcc

impl StructuralEq for UnrecognizedFourcc

impl StructuralPartialEq for UnrecognizedFourcc