Enum Subsampling 

pub enum Subsampling {
    S444,
    S422,
    S420,
    S440,
    Gray,
}

Chroma subsampling mode.

Variants

S444

4:4:4 - No subsampling (highest quality)

S422

4:2:2 - Horizontal subsampling

S420

4:2:0 - Horizontal and vertical subsampling (most common)

S440

4:4:0 - Vertical subsampling only

Gray

Grayscale (1 component)

Implementations

impl Subsampling

pub const fn luma_factors(self) -> (u8, u8)

Returns (h_samp_factor, v_samp_factor) for luminance component.

pub const fn chroma_factors(self) -> (u8, u8)

Returns (h_samp_factor, v_samp_factor) for chroma components.

Trait Implementations

impl Clone for Subsampling

fn clone(&self) -> Subsampling

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Subsampling

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

Formats the value using the given formatter.

impl Default for Subsampling

fn default() -> Subsampling

Returns the “default value” for a type.

impl PartialEq for Subsampling

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for Subsampling

impl Eq for Subsampling

impl StructuralPartialEq for Subsampling