Crate j2k 

JPEG 2000 inspect support for j2k.

Re-exports

pub use context::J2kContext;

pub use error::J2kError;

pub use scratch::J2kScratchPool;

pub use view::J2kCodec;

pub use view::J2kDecoder;

pub use view::J2kRowDecodeOptions;

pub use view::J2kView;

pub use adapter::adaptive_route::J2kAdaptiveBackendRequest;

pub use adapter::adaptive_route::J2kAdaptiveBenchmarkEvidence;

pub use adapter::adaptive_route::J2kAdaptiveBenchmarkScope;

pub use adapter::adaptive_route::J2kAdaptiveBenchmarks;

pub use adapter::adaptive_route::J2kAdaptiveCodecMode;

pub use adapter::adaptive_route::J2kAdaptiveGatePolicy;

pub use adapter::adaptive_route::J2kAdaptiveOperation;

pub use adapter::adaptive_route::J2kAdaptiveOutputResidency;

pub use adapter::adaptive_route::J2kAdaptiveQualityMode;

pub use adapter::adaptive_route::J2kAdaptiveRcaFinding;

pub use adapter::adaptive_route::J2kAdaptiveRcaReason;

pub use adapter::adaptive_route::J2kAdaptiveRouteKind;

pub use adapter::adaptive_route::J2kAdaptiveRoutePlanner;

pub use adapter::adaptive_route::J2kAdaptiveRouteReport;

pub use adapter::adaptive_route::J2kAdaptiveStage;

pub use adapter::adaptive_route::J2kAdaptiveStageDecision;

pub use adapter::adaptive_route::J2kAdaptiveStageGateStatus;

pub use adapter::adaptive_route::J2kAdaptiveStageOwner;

pub use adapter::adaptive_route::J2kAdaptiveWorkload;

pub use adapter::encode_stage::J2kEncodeStageAccelerator;

Modules

adapter

Adapter-facing planning APIs shared with GPU crates.

context

Reusable JPEG 2000 decode context.

error

JPEG 2000 error type.

scratch

Caller-owned JPEG 2000 scratch pool.

view

Borrowed view and decoder entry points.

Structs

CpuOnlyJ2kEncodeStageAccelerator

Adapter CPU-only encode accelerator that always falls back to native stages.

DecodeOutcome

Successful decode metadata plus non-fatal warnings.

DecoderContext

Wrapper that owns codec context state for repeated decode calls.

EncodedHtJ2kCodeBlock

Adapter encoded HTJ2K cleanup code-block payload for backend experimentation.

EncodedJ2k

Encoded JPEG 2000 lossless codestream and encode metadata.

EncodedJ2kCodeBlock

Adapter encoded classic J2K code-block payload for backend experimentation.

EncodedLossyJ2k

Encoded JPEG 2000 lossy codestream and encode metadata.

IrreversibleQuantizationStep

Public JPEG 2000 irreversible quantization step-size tuple.

IrreversibleQuantizationSubbandScales

Multipliers applied to irreversible 9/7 quantization step sizes by subband.

J2kCodeBlockSegment

Adapter classic J2K coded segment for backend experimentation.

J2kCodeBlockStyle

Adapter classic J2K code-block style for backend experimentation.

J2kDeinterleaveToF32Job

Adapter pixel deinterleave/level-shift job for backend experimentation.

J2kEncodeDispatchReport

Adapter encode-stage dispatch counters for backend experimentation.

J2kForwardDwt53Job

Adapter forward 5/3 DWT job for backend experimentation.

J2kForwardDwt53Level

Adapter forward 5/3 DWT detail level for backend experimentation.

J2kForwardDwt53Output

Adapter forward 5/3 DWT output for backend experimentation.

J2kForwardDwt97Job

Adapter forward irreversible 9/7 DWT job for backend experimentation.

J2kForwardDwt97Level

Adapter forward 9/7 DWT detail level for backend experimentation.

J2kForwardDwt97Output

Adapter forward 9/7 DWT output for backend experimentation.

J2kForwardIctJob

Adapter forward ICT job for backend experimentation.

J2kForwardRctJob

Adapter forward RCT job for backend experimentation.

J2kHtCodeBlockEncodeJob

Adapter HTJ2K code-block encode job for backend experimentation.

J2kHtSubbandEncodeJob

Adapter HTJ2K cleanup encode job for one unquantized sub-band.

J2kHtj2kTileEncodeJob

Adapter HTJ2K tile-body encode job for backend-resident full-tile paths.

J2kLosslessEncodeOptions

Options controlling JPEG 2000 lossless encoding.

J2kLosslessSamples

Borrowed interleaved samples and image geometry for lossless encoding.

J2kLossyEncodeOptions

Options controlling stable lossy JPEG 2000 encoding.

J2kLossyEncodeReport

Metrics reported by stable lossy JPEG 2000 encoding.

J2kLossySamples

Borrowed interleaved samples and image geometry for lossy encoding.

J2kPacketizationCodeBlock

Adapter LRCP packetization code-block contribution for backend experimentation.

J2kPacketizationEncodeJob

Adapter LRCP packetization job for backend experimentation.

J2kPacketizationPacketDescriptor

Adapter explicit packet descriptor for backend packetization experimentation.

J2kPacketizationResolution

Adapter LRCP packetization resolution packet for backend experimentation.

J2kPacketizationSubband

Adapter LRCP packetization subband precinct for backend experimentation.

J2kQualityLayer

One cumulative lossy quality layer request.

J2kQuantizeSubbandJob

Adapter sub-band quantization job for backend experimentation.

J2kTier1CodeBlockEncodeJob

Adapter Tier-1 classic J2K code-block encode job for backend experimentation.

J2kToHtj2kOptions

Options for classic JPEG 2000 reversible 5/3 to HTJ2K lossless recoding.

J2kToHtj2kReport

Metadata describing a J2K/JP2 to HTJ2K recode.

PassthroughCandidate

A borrowed compressed frame/tile that may be copied unchanged.

PassthroughRequirements

Destination requirements for copying compressed bytes unchanged.

PrecomputedHtj2k53Component

Precomputed reversible 5/3 wavelet coefficients for one component.

PrecomputedHtj2k53Image

Precomputed reversible 5/3 wavelet image.

PrecomputedHtj2k97Component

Precomputed irreversible 9/7 wavelet coefficients for one component.

PrecomputedHtj2k97Image

Precomputed irreversible 9/7 wavelet image.

PreencodedHtj2k97CodeBlock

One preencoded HTJ2K code-block.

PreencodedHtj2k97CompactCodeBlock

One compact preencoded HTJ2K code-block.

PreencodedHtj2k97CompactComponent

Preencoded compact irreversible 9/7 HTJ2K component.

PreencodedHtj2k97CompactImage

Preencoded irreversible 9/7 HTJ2K code-block image backed by one compact payload buffer.

PreencodedHtj2k97CompactResolution

One component resolution’s compact preencoded HTJ2K subbands.

PreencodedHtj2k97CompactSubband

One compact preencoded HTJ2K subband split into code-blocks.

PreencodedHtj2k97Component

Preencoded irreversible 9/7 HTJ2K component.

PreencodedHtj2k97Image

Preencoded irreversible 9/7 HTJ2K code-block image.

PreencodedHtj2k97Resolution

One component resolution’s preencoded HTJ2K subbands.

PreencodedHtj2k97Subband

One preencoded HTJ2K subband split into code-blocks.

PrequantizedHtj2k97CodeBlock

One prequantized HTJ2K code-block.

PrequantizedHtj2k97Component

Prequantized irreversible 9/7 HTJ2K component.

PrequantizedHtj2k97Image

Prequantized irreversible 9/7 HTJ2K code-block image.

PrequantizedHtj2k97Resolution

One component resolution’s prequantized HTJ2K subbands.

PrequantizedHtj2k97Subband

One prequantized HTJ2K subband split into code-blocks.

Rect

Rectangle in source pixel coordinates.

ReencodedHtj2k

HTJ2K codestream bytes and recode metadata.

TileBatchOptions

Worker configuration for CPU tile batches.

Enums

BackendKind

Runtime backend that executes codec work.

BackendRequest

Caller preference for backend selection.

BufferError

Buffer validation and copy errors.

CompressedPayloadKind

Encapsulation shape of the compressed bytes.

CompressedTransferSyntax

Compressed syntax carried by a source frame or accepted by a destination.

CpuDecodeParallelism

CPU parallelism policy for JPEG 2000 decode.

DecodeRowsError

Error wrapper used by row-streaming decode when either the codec or the caller-provided row sink can fail.

Downscale

Power-of-two downscale requested during decode.

EncodeBackendPreference

Backend preference for JPEG 2000 lossless encoding.

J2kBlockCodingMode

Supported code-block coding modes for the lossless encode facade.

J2kEncodeValidation

Validation policy for the lossless encode facade.

J2kMarkerSegment

Optional JPEG 2000 marker segment requested for lossy encode output.

J2kPacketizationBlockCodingMode

Adapter packetization block coding mode for backend experimentation.

J2kPacketizationProgressionOrder

Adapter packet progression order for backend packetization experimentation.

J2kProgressionOrder

Supported JPEG 2000 progression orders for the lossless encode facade.

J2kRateTarget

Rate target for stable lossy JPEG 2000 encoding.

J2kSubBandType

Adapter classic J2K sub-band kind for backend experimentation.

J2kToHtj2kMode

Recode path used for a J2K/JP2 to HTJ2K request.

PassthroughDecision

Result of a passthrough eligibility check.

PassthroughRejectReason

First reason a compressed payload was rejected for byte-preserving copy.

PixelFormat

Concrete interleaved pixel format.

ReversibleTransform

Reversible transform profile for lossless JPEG 2000 output.

Traits

CodecError

Shared error classification used by facade traits.

ImageCodec

Common associated types shared by image codecs.

ImageDecode

Borrowed-image decode API for codecs that parse compressed bytes directly.

ImageDecodeRows

Row-streaming decode API for large images or stripe-oriented callers.

RowSink

Destination for row-streaming decode output.

TileBatchDecode

Stateless tile-batch decode helpers that reuse caller-owned context.

Functions

decode_tile_into_in_context

One-shot parse-plus-decode of an independent J2K/HTJ2K tile into the caller’s buffer, reusing both caller-owned DecoderContext and caller-owned J2kScratchPool.

decode_tile_region_into_in_context

One-shot parse-plus-ROI-decode of an independent J2K/HTJ2K tile into the caller’s buffer, reusing both caller-owned DecoderContext and caller-owned J2kScratchPool.

decode_tile_region_scaled_into_in_context

One-shot parse-plus-ROI-scaled-decode of an independent J2K/HTJ2K tile into the caller’s buffer, reusing both caller-owned DecoderContext and caller-owned J2kScratchPool.

decode_tile_scaled_into_in_context

One-shot parse-plus-scaled-decode of an independent J2K/HTJ2K tile into the caller’s buffer, reusing both caller-owned DecoderContext and caller-owned J2kScratchPool.

decode_tiles_into

Decode independent J2K/HTJ2K tiles into caller-owned output buffers using a scoped CPU worker pool.

decode_tiles_region_into

Decode independent J2K/HTJ2K tile regions into caller-owned output buffers using a scoped CPU worker pool.

decode_tiles_region_scaled_into

Decode independent J2K/HTJ2K tile regions at reduced resolution into caller-owned output buffers using a scoped CPU worker pool.

decode_tiles_scaled_into

Decode independent J2K/HTJ2K tiles at reduced resolution into caller-owned output buffers using a scoped CPU worker pool.

encode_j2k_lossless

Encode interleaved samples into a raw JPEG 2000 lossless codestream.

encode_j2k_lossless_with_accelerator

Encode interleaved samples with an optional device encode-stage accelerator.

encode_j2k_lossy

Encode interleaved samples into a raw JPEG 2000 lossy codestream.

encode_j2k_lossy_with_accelerator

Encode interleaved lossy samples with an optional device encode-stage accelerator.

j2k_lossless_decomposition_levels

Return the default lossless decomposition level policy used by the facade.

j2k_lossless_decomposition_levels_for_options

Return the effective lossless decomposition level policy for encode options.

j2k_lossless_decomposition_levels_for_progression

Return the default lossless decomposition level policy for a progression.

recode_j2k_to_htj2k_lossless

Recode a classic JPEG 2000 reversible 5/3 J2K/JP2 input to lossless HTJ2K.

Type Aliases

TileBatchError

Error returned by J2K CPU tile batches, annotated with the first failing tile index from the caller’s input order.

TileDecodeJob

One full-tile decode request for decode_tiles_into.

TileRegionDecodeJob

One ROI tile decode request for decode_tiles_region_into.

TileRegionScaledDecodeJob

One ROI+scaled tile decode request for decode_tiles_region_scaled_into.

TileScaledDecodeJob

One scaled tile decode request for decode_tiles_scaled_into.