Struct MetalBatchDecoder 

pub struct MetalBatchDecoder { /* private fields */ }

Persistent Metal batch decoder.

The decoder retains one backend session across calls, including its Metal runtime, command queue, pipelines, lookup tables, scratch pools, and prepared direct-plan caches. Inputs queued in one call are grouped by the existing distinct/repeated HTJ2K batch scheduler.

Implementations

impl MetalBatchDecoder

pub fn system_default() -> Result<Self, Error>

Create a persistent decoder using the system default Metal device.

pub fn system_default_with_options( options: BatchDecodeOptions, ) -> Result<Self, Error>

Create a persistent decoder with retained shared batch policy.

pub const fn options(&self) -> BatchDecodeOptions

Shared preparation and output policy retained by this session.

pub fn submissions(&self) -> Result<u64, Error>

Number of grouped codec submissions completed by the retained session.

pub fn prepare(&self, inputs: Vec<EncodedImage>) -> Result<PreparedBatch, Error>

Parse, validate, and group shared codec inputs for repeated Metal decode.

pub fn prepare_prepared_images( &self, images: Vec<PreparedImage>, ) -> Result<PreparedBatch, Error>

Regroup caller-supplied prepared images under this session’s retained settings and output policy without reparsing their encoded bytes.

pub fn decode_batch( &mut self, inputs: Vec<EncodedImage>, ) -> Result<MetalBatchDecodeResult, Error>

Prepare and decode owned codec inputs into Metal-resident groups.

pub fn decode_prepared_images( &mut self, images: Vec<PreparedImage>, ) -> Result<MetalBatchDecodeResult, Error>

Regroup and decode caller-supplied prepared images without reparsing their encoded bytes.

pub fn decode_prepared( &mut self, prepared: &PreparedBatch, ) -> Result<MetalBatchDecodeResult, Error>

Decode a reusable shared codec batch without consuming its inputs or plans.

pub fn decode_prepared_group( &mut self, group: &PreparedBatchGroup, ) -> Result<MetalBatchGroup, Error>

Decode one homogeneous shared codec group using the preparation policy captured by the group.

Trait Implementations

impl BatchDecoder for MetalBatchDecoder

type Output = MetalBatchDecodeResult

Backend-specific successful output.

type Error = Error

Backend-specific infrastructure or execution error.

fn options(&self) -> BatchDecodeOptions

Preparation and output policy retained by this persistent session.

fn decode_prepared( &mut self, prepared: &PreparedBatch, ) -> Result<Self::Output, Self::Error>

Decode a reusable prepared batch without consuming its encoded inputs or plans.

fn prepare_batch( &self, inputs: Vec<EncodedImage>, ) -> Result<PreparedBatch, Self::Error>

Inspect and group owned inputs without consuming their encoded byte owners.

fn prepare_prepared_images( &self, images: Vec<PreparedImage>, ) -> Result<PreparedBatch, Self::Error>

Regroup caller-supplied prepared images without reparsing their encoded bytes.

fn decode_batch( &mut self, inputs: Vec<EncodedImage>, ) -> Result<Self::Output, Self::Error>

Prepare and decode one owned batch through the common session boundary.

fn decode_prepared_images( &mut self, images: Vec<PreparedImage>, ) -> Result<Self::Output, Self::Error>

Regroup and decode caller-supplied prepared images without reparsing them.

impl Debug for MetalBatchDecoder

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

Formats the value using the given formatter.