Struct IntraPredContext 

pub struct IntraPredContext { /* private fields */ }

Intra prediction context.

Holds neighbor samples and availability information for intra prediction.

Implementations

impl IntraPredContext

pub fn new(width: usize, height: usize, bit_depth: BitDepth) -> Self

Create a new prediction context.

pub fn with_availability( width: usize, height: usize, bit_depth: BitDepth, availability: NeighborAvailability, ) -> Self

Create with specific neighbor availability.

pub const fn bit_depth(&self) -> BitDepth

Get the bit depth.

pub const fn width(&self) -> usize

Get block width.

pub const fn height(&self) -> usize

Get block height.

pub const fn has_top(&self) -> bool

Check if top neighbor is available.

pub const fn has_left(&self) -> bool

Check if left neighbor is available.

pub const fn has_top_left(&self) -> bool

Check if top-left neighbor is available.

pub const fn availability(&self) -> NeighborAvailability

Get neighbor availability.

pub fn set_availability(&mut self, has_top: bool, has_left: bool)

Set neighbor availability.

pub fn set_full_availability(&mut self, availability: NeighborAvailability)

Set full neighbor availability.

pub fn top_samples(&self) -> &[u16]

Get top samples slice.

pub fn left_samples(&self) -> &[u16]

Get left samples slice.

pub fn extended_top_samples(&self) -> &[u16]

Get extended top samples (including top-right).

pub fn extended_left_samples(&self) -> &[u16]

Get extended left samples (including bottom-left).

pub const fn top_left_sample(&self) -> u16

Get top-left sample.

pub fn set_top_sample(&mut self, idx: usize, value: u16)

Set a top sample.

pub fn set_left_sample(&mut self, idx: usize, value: u16)

Set a left sample.

pub fn set_top_left_sample(&mut self, value: u16)

Set top-left sample.

pub fn set_top_samples(&mut self, samples: &[u16])

Set all top samples from a slice.

pub fn set_left_samples(&mut self, samples: &[u16])

Set all left samples from a slice.

pub fn filter_top_samples<F>(&mut self, filter: F)

where F: FnOnce(&mut [u16]),

Apply a filter function to top samples.

pub fn filter_left_samples<F>(&mut self, filter: F)

where F: FnOnce(&mut [u16]),

Apply a filter function to left samples.

pub fn reconstruct_neighbors( &mut self, frame: &[u16], frame_stride: usize, block_x: usize, block_y: usize, frame_width: usize, frame_height: usize, )

Reconstruct neighbors from a frame buffer.

Arguments

• frame - Frame sample buffer
• frame_stride - Frame row stride
• block_x - Block X position in samples
• block_y - Block Y position in samples
• frame_width - Frame width in samples
• frame_height - Frame height in samples

pub const fn is_at_frame_edge(&self) -> bool

Check if the block is at the frame edge.

pub fn fill_unavailable(&mut self)

Fill unavailable samples with the midpoint value.

pub fn get_extended_sample(&self, x: i32, y: i32) -> u16

Get a sample at an extended position (can be negative for top-left region).

Trait Implementations

impl Clone for IntraPredContext

fn clone(&self) -> IntraPredContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IntraPredContext

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

Formats the value using the given formatter.

impl Default for IntraPredContext

fn default() -> Self

Returns the “default value” for a type.