oximedia-codec 0.1.6

//! Audio and video codec implementations for `OxiMedia`.
//!
//! This crate provides encoding and decoding for royalty-free codecs:
//!
//! ## Video Codecs
//!
//! - **AV1** — Alliance for Open Media codec (primary, feature `av1`)
//! - **VP9** — Google's royalty-free codec (feature `vp9`)
//! - **VP8** — Google's earlier royalty-free codec (feature `vp8`)
//! - **Theora** — Xiph.Org Foundation codec, VP3-based (feature `theora`)
//! - **MJPEG** — Motion JPEG, one JPEG baseline frame per video frame (feature `mjpeg`)
//! - **APV** — Advanced Professional Video, ISO/IEC 23009-13 (feature `apv`)
//! - **FFV1** — Lossless video codec, RFC 9043 (feature `ffv1`)
//!
//! ## Audio Codecs
//!
//! - **Opus** — Modern low-latency audio codec (feature `opus`)
//! - **Vorbis** — Xiph.Org audio codec (always available)
//! - **FLAC** — Lossless audio (always available)
//! - **PCM** — Uncompressed audio (always available)
//!
//! ## Image Codecs
//!
//! - **JPEG-XL** — ISO/IEC 18181, royalty-free (feature `jpegxl`)
//! - **WebP** — Google royalty-free (always available)
//! - **GIF** — Patents expired 2004 (always available)
//! - **PNG** / **APNG** — W3C royalty-free (always available)
//! - **AVIF** — AV1-based still image format (always available)
//!
//! ## Codec Feature Matrix
//!
//! Full encode/decode support, bit-depth, and chroma subsampling per codec:
//!
//! | Codec | Encode | Decode | Bit Depths | Chroma |
//! |-------|--------|--------|------------|--------|
//! | AV1 | ✓ | ✓ | 8, 10, 12 | 4:2:0, 4:4:4 |
//! | VP9 | ✓ | ✓ | 8, 10 | 4:2:0 |
//! | VP8 | ✓ | ✓ | 8 | 4:2:0 |
//! | Theora | ✓ | ✓ | 8 | 4:2:0 |
//! | MJPEG | ✓ | ✓ | 8 | 4:2:0, 4:2:2, 4:4:4 |
//! | APV | ✓ | ✓ | 8, 10, 12 | 4:2:0, 4:2:2, 4:4:4 |
//! | FFV1 | ✓ | ✓ | 8 | 4:2:0, 4:2:2, 4:4:4 |
//! | H.263 | ✓ | ✓ | 8 | 4:2:0 |
//! | JPEG-XL | ✓ | ✓ | 8, 10, 12 | 4:2:0, 4:2:2, 4:4:4 |
//! | AVIF/AV1 | ✓ | ✓ | 8, 10, 12 | 4:2:0, 4:4:4 |
//! | APNG/PNG | ✓ | ✓ | 8, 16 | RGBA, Grayscale |
//! | GIF | ✓ | ✓ | 8 | Paletted |
//! | WebP | ✓ | ✓ | 8 | 4:2:0 (lossy), lossless |
//! | Opus | ✓ | ✓ | — | Mono/Stereo/Surround |
//! | Vorbis | ✓ | ✓ | — | Mono/Stereo/Surround |
//! | FLAC | ✓ | ✓ | 16, 24 | Mono/Stereo/Multi |
//! | PCM | ✓ | ✓ | 8, 16, 24, 32, f32 | Any |
//!
//! Enable optional codecs via Cargo features:
//!
//! ```toml
//! [dependencies]
//! oximedia-codec = { version = "0.1.6", features = ["av1", "vp9", "opus", "jpegxl"] }
//! ```
//!
//! Available features: `av1` (default), `vp9`, `vp8`, `theora`, `h263`, `opus`,
//! `ffv1` (default), `jpegxl` (default), `mjpeg`, `apv`, `image-io` (default).
//!
//! # Architecture
//!
//! All codecs implement unified traits:
//!
//! - [`VideoDecoder`] — Decode compressed packets to frames
//! - [`VideoEncoder`] — Encode frames to compressed packets
//!
//! ## JPEG-XL: ISOBMFF Container and Streaming Decode
//!
//! The `jpegxl` module provides two output paths for animated JXL sequences:
//!
//! ### `AnimatedJxlEncoder::finish_isobmff()`
//!
//! Wraps the bare JXL codestream in an ISOBMFF container (ISO Base Media File Format):
//!
//! - `ftyp` box — major brand `jxl `, compatible brands `jxl ` + `isom`
//! - `jxll` box — JXL level 5
//! - `jxlp` box — the bare codestream with the `is_last` bit set
//!
//! ```ignore
//! use oximedia_codec::jpegxl::{AnimatedJxlEncoder, JxlAnimation};
//!
//! let anim = JxlAnimation { ticks_per_second: 30, ..Default::default() };
//! let mut encoder = AnimatedJxlEncoder::new(640, 480, 3, 8, 7, anim);
//! encoder.add_frame(&frame_rgb, 1)?;
//!
//! // Produces ftyp + jxll + jxlp bytes, decodable by JxlStreamingDecoder
//! let isobmff_bytes: Vec<u8> = encoder.finish_isobmff()?;
//! ```
//!
//! ### `JxlStreamingDecoder<R: Read>` — Streaming Frame Iterator
//!
//! `JxlStreamingDecoder` is a lazy frame iterator that auto-detects whether its
//! source is an ISOBMFF container or a bare native codestream:
//!
//! | Format  | Detection | Producer |
//! |---------|-----------|----------|
//! | ISOBMFF | `bytes[4..8] == b"ftyp"` and `bytes[8..12] == b"jxl "` | `finish_isobmff()` |
//! | Native  | `bytes[0..2] == [0xFF, 0x0A]` | `finish()` |
//!
//! ```ignore
//! use oximedia_codec::jpegxl::{AnimatedJxlEncoder, JxlAnimation, JxlStreamingDecoder};
//! use std::io::Cursor;
//!
//! // Encode
//! let anim = JxlAnimation { ticks_per_second: 30, ..Default::default() };
//! let mut encoder = AnimatedJxlEncoder::new(640, 480, 3, 8, 7, anim);
//! encoder.add_frame(&frame_rgb, 1)?;
//! let bytes = encoder.finish_isobmff()?;
//!
//! // Stream-decode frame by frame
//! for frame_result in JxlStreamingDecoder::new(Cursor::new(bytes))? {
//!     let frame = frame_result?;
//!     println!("frame {}x{}", frame.width, frame.height);
//! }
//! ```
//!
//! ## MJPEG: Baseline JPEG Compliance
//!
//! The `mjpeg` module wraps `oximedia-image`'s pure-Rust JPEG baseline encoder and decoder.
//! The JPEG encoder emits DQT segments with quantization tables in the correct zigzag scan
//! order and achieves ≥28 dB PSNR at quality 85 for typical natural images.
//!
//! # Example
//!
//! ```ignore
//! use oximedia_codec::{VideoDecoder, Av1Decoder};
//!
//! let mut decoder = Av1Decoder::new(&codec_params)?;
//! decoder.send_packet(&packet)?;
//! while let Some(frame) = decoder.receive_frame()? {
//!     // Process decoded frame
//! }
//! ```
//!
//! # Audio Example
//!
//! ```ignore
//! use oximedia_codec::opus::OpusDecoder;
//!
//! let mut decoder = OpusDecoder::new(48000, 2)?;
//! let audio_frame = decoder.decode_packet(&packet_data)?;
//! ```

#![deny(unsafe_code)]
#![warn(missing_docs)]
#![allow(clippy::unused_self)]
#![allow(clippy::missing_errors_doc)]
#![allow(clippy::unnecessary_wraps)]
#![allow(clippy::must_use_candidate)]
#![allow(clippy::match_same_arms)]
#![allow(clippy::needless_pass_by_value)]
#![allow(clippy::doc_markdown)]
#![allow(clippy::cast_precision_loss)]
#![allow(clippy::cast_possible_wrap)]
#![allow(clippy::cast_lossless)]
#![allow(clippy::trivially_copy_pass_by_ref)]
#![allow(clippy::unnecessary_cast)]
#![allow(clippy::struct_field_names)]
#![allow(clippy::self_assignment)]
#![allow(clippy::redundant_else)]
#![allow(clippy::no_effect_underscore_binding)]
#![allow(clippy::needless_range_loop)]
#![allow(clippy::missing_panics_doc)]
#![allow(clippy::map_unwrap_or)]
#![allow(clippy::manual_div_ceil)]
#![allow(clippy::if_not_else)]
#![allow(clippy::derivable_impls)]
#![allow(clippy::bool_to_int_with_if)]
#![allow(unused_variables)]
#![allow(unused_imports)]
// Additional clippy allows for codec implementation
#![allow(clippy::unreadable_literal)]
#![allow(clippy::cast_possible_truncation)]
#![allow(clippy::cast_sign_loss)]
#![allow(clippy::similar_names)]
#![allow(clippy::many_single_char_names)]
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#![allow(clippy::implicit_clone)]
#![allow(clippy::assertions_on_constants)]
#![allow(clippy::no_effect)]
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#![allow(clippy::collapsible_if)]
#![allow(clippy::manual_strip)]
#![allow(clippy::fn_params_excessive_bools)]
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#![allow(dead_code)]
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#![allow(clippy::needless_late_init)]
#![allow(clippy::never_loop)]
#![allow(clippy::while_let_on_iterator)]
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#![allow(clippy::manual_slice_size_calculation)]
#![allow(clippy::option_as_ref_deref)]
#![allow(clippy::single_match_else)]
#![allow(clippy::cast_abs_to_unsigned)]
#![allow(clippy::semicolon_if_nothing_returned)]
#![allow(clippy::range_plus_one)]
#![allow(clippy::only_used_in_recursion)]
#![allow(clippy::iter_without_into_iter)]
#![allow(clippy::collapsible_else_if)]
#![allow(clippy::naive_bytecount)]
#![allow(clippy::manual_clamp)]
#![allow(clippy::unnecessary_literal_unwrap)]
#![allow(clippy::default_trait_access)]
#![allow(clippy::return_self_not_must_use)]
#![allow(clippy::match_wildcard_for_single_variants)]
#![allow(clippy::unnecessary_filter_map)]
#![allow(clippy::ref_binding_to_reference)]
#![allow(clippy::manual_memcpy)]
#![allow(clippy::borrowed_box)]
#![allow(clippy::needless_question_mark)]
#![allow(clippy::type_complexity)]
#![allow(clippy::bind_instead_of_map)]
#![allow(clippy::redundant_closure_for_method_calls)]
#![allow(clippy::ref_option)]
#![allow(clippy::new_without_default)]
#![allow(clippy::erasing_op)]
#![allow(clippy::identity_op)]
#![allow(clippy::op_ref)]
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#![allow(clippy::self_only_used_in_recursion)]
#![allow(clippy::unnecessary_map_or)]

pub mod av1_obu;
pub mod avif;
pub mod bitrate_model;
pub mod bitstream_filter;
pub mod bitstream_writer;
pub mod codec_caps;
pub mod codec_probe;
pub mod codec_profile;
pub mod codec_registry;
pub mod color_range;
/// ISOBMFF (ISO Base Media File Format) box utilities for container formats.
pub mod container;
pub mod entropy_coding;
pub mod entropy_tables;
pub mod error;
pub mod error_concealment;
pub mod features;
pub mod flac_codec;
pub mod frame;
pub mod frame_queue;
pub mod frame_types;
pub mod gop_structure;
pub mod hdr;
pub mod intra;
pub mod motion;
pub mod multipass;
pub mod multipass_quality;
pub mod nal_unit;
pub mod packet_builder;
pub mod packet_queue;
pub mod packet_splitter;
pub mod picture_timing;
pub mod profile_level;
pub mod psycho_visual;
pub mod quality_metrics;
pub mod rate_control;
pub mod rate_control_accuracy;
pub mod reconstruct;
pub mod reference_frames;
pub mod scene_change_idr;
pub mod sei_nal;
pub mod simd;
pub mod slice_header;
pub mod stats;
pub mod stream_info;
pub mod tile;
pub mod tile_encoder;
pub mod traits;
pub mod vbr_twopass;

// Audio support
pub mod audio;

// Standalone SILK frame decoding types
pub mod silk;

// Standalone CELT frame decoding types
pub mod celt;

// PNG codec
pub mod png;

// APNG (Animated PNG) top-level encoder/decoder
pub mod apng;

// Vorbis audio codec (encoder + decoder)
pub mod vorbis;
pub use vorbis::{
    SimpleVorbisEncoder, VorbisConfig, VorbisEncConfig, VorbisEncoder, VorbisPacket, VorbisQuality,
};

// FLAC lossless audio codec (encoder + decoder)
pub mod flac;

// PCM raw audio codec (encoder + decoder)
pub mod pcm;

// GIF codec
pub mod gif;

// WebP codec
pub mod webp;

// JPEG-XL codec
#[cfg(feature = "jpegxl")]
pub mod jpegxl;

// Image I/O support
#[cfg(feature = "image-io")]
pub mod image;

#[cfg(feature = "av1")]
pub mod av1;

#[cfg(feature = "vp9")]
pub mod vp9;

#[cfg(feature = "vp8")]
pub mod vp8;

#[cfg(feature = "theora")]
pub mod theora;

#[cfg(feature = "h263")]
pub mod h263;

#[cfg(feature = "opus")]
pub mod opus;

#[cfg(feature = "ffv1")]
pub mod ffv1;

#[cfg(feature = "mjpeg")]
pub mod mjpeg;

#[cfg(feature = "apv")]
pub mod apv;

// Re-exports
pub use audio::{AudioFrame, ChannelLayout, SampleFormat};
pub use error::{CodecError, CodecResult};
pub use frame::{
    ColorInfo, ColorPrimaries, FrameType, MatrixCoefficients, Plane, TransferCharacteristics,
    VideoFrame,
};
pub use multipass::{
    allocation::AllocationStrategy, Allocator, Analyzer, Buffer, BufferConfig, ComplexityStats,
    EncoderConfig as MultiPassConfig, EncoderError, EncodingResult, FrameAllocation,
    FrameComplexity, LookaheadAnalysis, LookaheadFrame, MultiPassEncoder, PassStats, PassType,
    SceneChangeDetector, Stats, VbvStatistics,
};
pub use rate_control::{
    AdaptiveAllocation, AdaptiveQuantization, AllocationResult, AnalysisResult, AqMode,
    BitrateAllocator, BlockQpMap, BufferModel, CbrController, ComplexityEstimator,
    ContentAdaptiveAllocator, ContentAnalyzer, ContentMetrics, ContentType, CqpController,
    CrfController, FrameStats, GopAllocationStatus, GopStats, Lookahead, QpResult, QpSelector,
    QpStrategy, RateControlMode, RateController, RcConfig, RcOutput,
    SceneChangeDetector as RcSceneChangeDetector, SceneChangeThreshold, SceneContentType,
    TextureMetrics, VbrController,
};
pub use reconstruct::{
    BufferPool, CdefApplicator, CdefBlockConfig, CdefFilterResult, ChromaSubsampling,
    DeblockFilter, DeblockParams, DecoderPipeline, EdgeFilter, FilmGrainParams,
    FilmGrainSynthesizer, FilterDirection, FilterStrength, FrameBuffer, GrainBlock,
    LoopFilterPipeline, OutputConfig, OutputFormat, OutputFormatter, PipelineConfig, PipelineStage,
    PlaneBuffer, PlaneType, ReconstructResult, ReconstructionError, ResidualBuffer, ResidualPlane,
    StageResult, SuperResConfig, SuperResUpscaler, UpscaleMethod,
};
pub use tile::{
    assemble_tiles, decode_tile_stream, decode_tiles_parallel, HeaderedTileEncodeOp,
    RawLumaEncodeOp, TileConfig, TileCoord, TileDecodeOp, TileDecodeResult, TileEncodeOp,
    TileEncodeStats, TileEncoder, TileResult,
};

pub use pcm::{ByteOrder, PcmConfig, PcmDecoder, PcmEncoder, PcmFormat};
pub use traits::{
    BitrateMode, DecoderConfig, EncodedPacket, EncoderConfig, EncoderPreset, VideoDecoder,
    VideoEncoder,
};

#[cfg(feature = "av1")]
pub use av1::{Av1Decoder, Av1Encoder};

#[cfg(feature = "vp9")]
pub use vp9::{
    SimpleVp9Encoder, Vp9Decoder, Vp9EncConfig, Vp9Encoder, Vp9EncoderConfig, Vp9Packet, Vp9Profile,
};

#[cfg(feature = "vp8")]
pub use vp8::{
    SimpleVp8Encoder, Vp8Decoder, Vp8EncConfig, Vp8Encoder, Vp8EncoderConfig, Vp8Packet,
};

#[cfg(feature = "theora")]
pub use theora::{TheoraConfig, TheoraDecoder, TheoraEncoder};

#[cfg(feature = "h263")]
pub use h263::{H263Decoder, H263Encoder, PictureFormat};

#[cfg(feature = "opus")]
pub use opus::{OpusDecoder, OpusEncoder, OpusEncoderConfig};

#[cfg(feature = "ffv1")]
pub use ffv1::{Ffv1Decoder, Ffv1Encoder};

#[cfg(feature = "mjpeg")]
pub use mjpeg::{MjpegConfig, MjpegDecoder, MjpegEncoder, MjpegError};

#[cfg(feature = "apv")]
pub use apv::{ApvConfig, ApvDecoder, ApvEncoder, ApvError};

#[cfg(feature = "image-io")]
pub use image::{
    convert_rgb_to_yuv420p, convert_yuv420p_to_rgb, rgb_to_yuv, yuv_to_rgb,
    EncoderConfig as ImageEncoderConfig, ImageDecoder, ImageEncoder, ImageFormat,
};

pub use png::{
    batch_encode as batch_encode_png, best_encoder, decode as decode_png,
    encode_grayscale as encode_png_grayscale, encode_rgb as encode_png_rgb,
    encode_rgba as encode_png_rgba, encoder_from_profile, fast_encoder, get_info as png_info,
    is_png, optimize as optimize_png, transcode as transcode_png, validate as validate_png,
    Chromaticity, ColorType as PngColorType, CompressionLevel as PngCompressionLevel,
    DecodedImage as PngImage, EncoderBuilder as PngEncoderBuilder,
    EncoderConfig as PngEncoderConfig, EncodingProfile, EncodingStats, FilterStrategy, FilterType,
    ImageHeader as PngHeader, PaletteEntry, PaletteOptimizer, ParallelPngEncoder,
    PhysicalDimensions, PngDecoder, PngDecoderExtended, PngEncoder, PngEncoderExtended, PngInfo,
    PngMetadata, SignificantBits, TextChunk,
};

pub use gif::{
    is_gif, DisposalMethod, DitheringMethod, GifDecoder, GifEncoder, GifEncoderConfig, GifFrame,
    GifFrameConfig, GraphicsControlExtension, ImageDescriptor, LogicalScreenDescriptor,
    QuantizationMethod,
};

#[cfg(feature = "jpegxl")]
pub use jpegxl::{
    AnsDecoder, AnsDistribution, AnsEncoder, BitReader as JxlBitReader, BitWriter as JxlBitWriter,
    DecodedImage as JxlImage, JxlColorSpace, JxlConfig, JxlDecoder, JxlEncoder, JxlFrameEncoding,
    JxlHeader, JxlStreamingDecoder, ModularDecoder, ModularEncoder,
};

pub use avif::{AvifConfig, AvifDecoder, AvifEncoder, AvifImage, AvifProbeResult, YuvFormat};