Enum jpeg_decoder::UnsupportedFeature[−][src]

pub enum UnsupportedFeature {
    Hierarchical,
    Lossless,
    ArithmeticEntropyCoding,
    SamplePrecision(u8),
    ComponentCount(u8),
    DNL,
    SubsamplingRatio,
    NonIntegerSubsamplingRatio,
}

Expand description

An enumeration over JPEG features (currently) unsupported by this library.

Support for features listed here may be included in future versions of this library.

Variants

`Hierarchical`

Hierarchical JPEG.

`Lossless`

Lossless JPEG.

`ArithmeticEntropyCoding`

JPEG using arithmetic entropy coding instead of Huffman coding.

`SamplePrecision(u8)`

Tuple Fields

0: u8

Sample precision in bits. 8 bit sample precision is what is currently supported.

`ComponentCount(u8)`

Tuple Fields

0: u8

Number of components in an image. 1, 3 and 4 components are currently supported.

`DNL`

An image can specify a zero height in the frame header and use the DNL (Define Number of Lines) marker at the end of the first scan to define the number of lines in the frame.

`SubsamplingRatio`

Subsampling ratio.

`NonIntegerSubsamplingRatio`

A subsampling ratio not representable as an integer.

Trait Implementations

impl Debug for UnsupportedFeature

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for UnsupportedFeature

impl Send for UnsupportedFeature

impl Sync for UnsupportedFeature

impl Unpin for UnsupportedFeature

impl UnwindSafe for UnsupportedFeature

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

Performs the conversion.

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.