Crate zvidlib 

Portable core types for frame-accurate video and synchronized audio I/O.

The crate provides checked timeline and media values, byte I/O, codec and transfer contracts, exact-frame decoding, indexed MP4 and WebM output, and a browser-facing WebAssembly boundary. Production container, codec, and playback backends build on these types without leaking platform-specific values into the common API.

Re-exports

pub use api::Capability;

pub use api::Error;

pub use api::ErrorKind;

pub use api::Limits;

pub use api::Result;

pub use api::Support;

pub use api::TransferMode;

pub use audio::AacDecoder;

pub use audio::AacSampleReader;

pub use audio::AudioDecoder;

pub use audio::AudioEdit;

pub use audio::AudioSampleReader;

pub use audio::AudioTrackTiming;

pub use audio::EncodedAudioSample;

pub use av1::Av1CodecConfigurationRecord;

pub use av1::Av1ColorConfig;

pub use av1::Av1FrameHeader;

pub use av1::Av1FrameType;

pub use av1::Av1Metadata;

pub use av1::Av1Obu;

pub use av1::Av1ObuHeader;

pub use av1::Av1ObuType;

pub use av1::Av1OperatingPoint;

pub use av1::Av1Parser;

pub use av1::Av1SequenceHeader;

pub use av1::Av1SyntaxSupport;

pub use av1::Av1TileGroup;

pub use av1_entropy::AV1_CDF_MAX;

pub use av1_entropy::Av1SymbolDecoder;

pub use av1_entropy::validate_cdf;

pub use av1_filters::CdefStrength;

pub use av1_filters::FilmGrainParams;

pub use av1_filters::FilterFrame;

pub use av1_filters::FilterPlane;

pub use av1_filters::LoopFilterParams;

pub use av1_filters::MatrixCoefficients;

pub use av1_filters::RestorationUnit;

pub use av1_filters::TxSizeGrid;

pub use av1_filters::apply_film_grain;

pub use av1_filters::apply_restoration_unit;

pub use av1_filters::cdef_frame;

pub use av1_filters::convert_to_rgba8;

pub use av1_filters::deblock_frame;

pub use av1_filters::super_resolution_upscale;

pub use av1_inter_decoder::Av1InterDecoder;

pub use av1_intra::Av1IntraBlock;

pub use av1_intra::Av1IntraFrame;

pub use av1_intra::Av1IntraMode;

pub use av1_intra::Av1TxType;

pub use av1_intra::Tx1d;

pub use av1_intra::get_ac_quant;

pub use av1_intra::get_dc_quant;

pub use av1_intra::inverse_transform;

pub use av1_intra::inverse_wht_4x4;

pub use av1_intra_decoder::decode_av1_lossless_intra;

pub use av1_intra_decoder::decode_av1_lossless_intra_with_tx_sizes;

pub use av1_intra_pred::Av1IntraSimd;

pub use av1_intra_pred::SmoothMode;

pub use av1_intra_pred::add_residual_row;

pub use av1_intra_pred::av1_intra_simd;

pub use av1_intra_pred::directional_row;

pub use av1_intra_pred::paeth_row;

pub use av1_intra_pred::smooth_row;

pub use av1_intra_pred::sum_samples;

pub use codec::AudioDrain;

pub use codec::AudioEncoder;

pub use codec::AudioEncoderConfig;

pub use codec::AudioEncoderFactory;

pub use codec::AudioEncoderFormat;

pub use codec::AudioGapless;

pub use codec::CancellationToken;

pub use codec::CodecImplementation;

pub use codec::CodecProfile;

pub use codec::CodecSupport;

pub use codec::DecodeStatistics;

pub use codec::DecodedVideoFrame;

pub use codec::EncodedSample;

pub use codec::EncodedVideoSample;

pub use codec::EncoderConfig;

pub use codec::EncoderFuture;

pub use codec::ExactFrameReader;

pub use codec::HardwarePreference;

pub use codec::SEEK_LATENCY_BUDGET;

pub use codec::SampleDependency;

pub use codec::Seek;

pub use codec::SeekPreviewSource;

pub use codec::TrackKind;

pub use codec::VideoDecoder;

pub use codec::VideoDecoderConfig;

pub use codec::VideoDecoderFactory;

pub use codec::VideoEncoder;

pub use codec::VideoEncoderConfig;

pub use codec::VideoEncoderFactory;

pub use codec::VideoEncoderFormat;

pub use codec::uncompressed_video_decoder_factory;

pub use codec_config::DerivedCodecString;

pub use codec_config::Vp9CodecConfig;

pub use codec_config::derive_codec_string;

pub use conformance::ExpectedVideoFrame;

pub use conformance::FrameDigest;

pub use conformance::VideoDecoderConformanceReport;

pub use conformance::VideoDecoderConformanceVector;

pub use conformance::VideoEncoderConformanceReport;

pub use conformance::VideoEncoderConformanceVector;

pub use conformance::verify_video_decoder_conformance;

pub use conformance::verify_video_encoder_conformance;

pub use container::container_capabilities;

pub use container::probe_container;

pub use cover::COVER_THUMBNAIL_MAX_EDGE;

pub use cover::CoverSource;

pub use cover::DEFAULT_COVER_FRAME;

pub use media::AudioBuffer;

pub use media::Codec;

pub use media::ColorRange;

pub use media::Container;

pub use media::PixelFormat;

pub use media::Plane;

pub use media::VideoDimensions;

pub use media::VideoFrame;

pub use mp4::CoverArt;

pub use mp4::CoverArtFormat;

pub use mp4_demux::AacTrackConfig;

pub use mp4_demux::EditMapping;

pub use mp4_demux::Mp4Demuxer;

pub use mp4_demux::Mp4DemuxerOptions;

pub use mp4_demux::Mp4Sample;

pub use mp4_demux::Mp4Track;

pub use mp4_demux::probe_mp4;

pub use opus::NativeOpusDecoder;

pub use opus::native_opus_audio_encoder_factory;

pub use opus::OPUS_PREROLL_SAMPLES;

pub use opus::OPUS_SAMPLE_RATE;

pub use opus::OpusHead;

pub use opus::opus_packet_samples;

pub use opus::opus_preroll_packets;

pub use output::MediaOutput;

pub use output::OutputOptions;

pub use playback::AudioOutputBackend;

pub use playback::AudioOutputKind;

pub use playback::IndexedPresentationTimeline;

pub use playback::NativeAudioOutput;

pub use playback::PlaybackAudioOutput;

pub use playback::PlaybackAudioSource;

pub use playback::PlaybackController;

pub use playback::PlaybackOptions;

pub use playback::PlaybackVideoSource;

pub use playback::Presentation;

pub use playback::WebAudioOutput;

pub use previews::PreviewOptions;

pub use previews::PreviewPass;

pub use previews::PreviewStore;

pub use timeline::FrameIndex;

pub use timeline::FrameRate;

pub use timeline::Rational;

pub use timeline::SampleRange;

pub use timeline::Timeline;

pub use transfer::ColorConversion;

pub use transfer::ContextIdentity;

pub use transfer::CpuFrameDestination;

pub use transfer::CpuFrameSource;

pub use transfer::CpuPlaneDestination;

pub use transfer::ExecutionOwner;

pub use transfer::FrameDestination;

pub use transfer::FrameSource;

pub use transfer::GraphicsAdapter;

pub use transfer::GraphicsApi;

pub use transfer::GraphicsResource;

pub use transfer::Orientation;

pub use transfer::ResourceKind;

pub use transfer::ResourceOwnership;

pub use transfer::ScaleFilter;

pub use transfer::TransferCapability;

pub use transfer::TransferPolicy;

pub use transfer::TransferStage;

pub use transfer::execute_transfer;

pub use transfer::inspect_transfer;

pub use vorbis::NativeVorbisDecoder;

pub use vorbis::native_vorbis_audio_encoder_factory;

pub use vorbis::VORBIS_PREROLL_PACKETS;

pub use vorbis::VorbisConfig;

pub use zvidlib_core::SimdIsa;

pub use webm::WebmMuxer;

pub use webm_demux::WebmAudioTrim;

pub use webm_demux::WebmCuePoint;

pub use webm_demux::WebmDemuxer;

pub use webm_demux::WebmDemuxerOptions;

pub use webm_demux::WebmSeekPoint;

pub use webm_demux::WebmSkippedTrack;

pub use webm_demux::probe_webm;

pub use previews::PreviewIndex;

Modules

api

audio

Exact audio sample reads with gapless and edit-list timeline mapping.

av1

Bounded AV1 low-overhead bitstream and configuration parsing.

av1_entropy

Bounded arithmetic-symbol primitives used by the native AV1 decoder.

av1_filters

Post-reconstruction AV1 in-loop filtering and output color conversion.

av1_inter_decoder

Dependency-free stateful decoding of bounded AV1 Main-profile inter frames, building on the intra reconstruction published by crate::av1_intra_decoder.

av1_intra

Bounded pixel primitives used by AV1 intra-frame reconstruction.

av1_intra_decoder

Dependency-free reconstruction of bounded AV1 Main-profile intra frames. The implemented syntax is the standards-compliant reduced-still, 8-bit monochrome, single-tile subset used by zvidlib’s native AV1 encoder. Every other syntax branch is rejected explicitly.

av1_intra_pred

SIMD-accelerated pixel kernels shared by AV1 intra prediction and reconstruction.

av1_mc

AV1 inter prediction primitives (motion compensation) with SIMD backends.

av1_simd

Runtime-dispatched SIMD kernels for the AV1 transforms and in-loop filters.

codec

codec_config

Portable derivation of WebCodecs codec strings and CodecProfile values from raw MP4 hvcC/av1C/vpcC codec configuration boxes and for VP8, which has none, and the VP9 codec configuration record (Vp9CodecConfig).

conformance

Backend-independent video codec conformance helpers.

container

Container detection and capability discovery across MP4 and WebM.

cover

Cover art generated from a recorded video frame (issue #510).

io

media

mp4

Deterministic seekable ISO BMFF/MP4 muxing.

mp4_demux

Bounded, read-only ISO BMFF/MP4 probing and sample indexing.

opus

Opus configuration records, packet timing and, with the opus-decoder or opus-encoder feature, the native Opus codec. Opus audio: decoder configuration, native decoding and native encoding.

output

Strict synchronized indexed writing built on encoder and muxer contracts.

playback

Audio-clock-driven playback shared by native and browser adapters.

previews

A bounded preview tier over a track: one shrunk picture every N frames.

simd

The process-wide SIMD instruction-set override shared by every codec kernel.

timeline

transfer

Frame transfer contracts shared by CPU, native OpenGL, and browser WebGL backends.

vorbis

Vorbis audio: decoder configuration, packet timing and native decoding.

webm

Deterministic seekable WebM muxing.

webm_demux

Bounded, read-only WebM (Matroska/EBML) probing and sample indexing.

Structs

DefaultAudioOutput

A raw-PCM adapter for the system default output device.

NativeAacDecoder

AAC-LC access-unit decoder: AudioToolbox on macOS, Media Foundation on Windows, and Symphonia’s decoder on the native targets with no platform AAC decoder, such as Linux.

Functions

forward_transform

Applies the non-lossless forward transform for one size x size block, returning row-major coefficients ready for quantization.

native_aac_audio_encoder_factory

Returns the native AAC-LC encoder backend.

native_av1_video_decoder_factory

Returns the dependency-free native AV1 Main-profile (8-bit 4:2:0 and monochrome) software decoder backend.

native_av1_video_encoder_factory

Returns the native software AV1 encoder backend.

native_hevc_video_decoder_factory

Returns the native HEVC Main and Main 10 decoder backend.

native_hevc_video_encoder_factory

Returns the HEVC Main encoder factory.

native_vp8_video_decoder_factory

Returns the native VP8 decoder backend.

native_vp8_video_encoder_factory

Returns the native VP8 encoder backend.

native_vp9_video_decoder_factory

Returns the native VP9 profile 0 (8-bit 4:2:0) decoder backend.

native_vp9_video_encoder_factory

Returns the native VP9 profile 0 encoder backend.