Enum FrameFormat 

pub enum FrameFormat {
    Rgba8,
    Rgb8,
    Nv12,
}

How a frame’s pixels are laid out.

Variants

Rgba8

Tightly packed RGBA8, row-major, no padding.

Rgb8

Tightly packed RGB8, row-major, no padding.

What a USB webcam decodes to. Carried as-is so a desktop viewfinder does not pay a widening copy per frame for an alpha channel a camera never has.

Nv12

Full-range NV12: a width * height luma plane followed by an interleaved width * height / 2 chroma plane at half resolution in both directions.

What a phone camera produces. Carrying it as-is is what removes the encode-and-decode round trip a JPEG preview pays on every frame.

Implementations

impl FrameFormat

pub fn byte_len(self, width: u32, height: u32) -> Option<usize>

How many bytes a frame of this size occupies, or None when the size cannot be represented — which is a frame nobody can allocate anyway.

Trait Implementations

impl Clone for FrameFormat

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FrameFormat

impl Debug for FrameFormat

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

Formats the value using the given formatter.

impl Default for FrameFormat

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FrameFormat

impl Hash for FrameFormat

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FrameFormat

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FrameFormat