Enum ChromaSubsampling 

pub enum ChromaSubsampling {
    Yuv420,
    Yuv422,
    Yuv444,
    Monochrome,
}

Specifies the chroma subsampling for a YUV frame.

Variants

Yuv420

Chroma at half width, half height

Yuv422

Chroma at half width, full height

Yuv444

Chroma at full resolution

Monochrome

No chroma planes

Implementations

impl ChromaSubsampling

pub fn has_chroma(&self) -> bool

Whether the specified chroma subsampling has chroma planes.

pub fn chroma_dimensions( &self, luma_width: usize, luma_height: usize, ) -> Option<(usize, usize)>

Computes the dimensions for a chroma plane with the current subsampling for the given luma dimensions.

Returns None if the subsampling has no chroma planes, or if the subsampling is invalid for the luma dimensions (e.g. odd resolution for YUV420).

pub fn subsample_ratio(&self) -> Option<(NonZeroU8, NonZeroU8)>

Returns the divisor for the chroma dimensions for the given subsampling.

Trait Implementations

impl Clone for ChromaSubsampling

fn clone(&self) -> ChromaSubsampling

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChromaSubsampling

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

Formats the value using the given formatter.

impl PartialEq for ChromaSubsampling

fn eq(&self, other: &ChromaSubsampling) -> 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 ChromaSubsampling

impl Eq for ChromaSubsampling

impl StructuralPartialEq for ChromaSubsampling