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      "pageShape": "implementation",
      "summary": "Ultra Video Group's open-source VVC encoder.",
      "repository": "https://github.com/ultravideo/uvg266",
      "version": "v0.8.1",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "ultravideo.uvg266-0.8.1"
      ],
      "lifecycle": "experimental",
      "softwareLicense": "BSD-3-Clause-Clear"
    },
    {
      "id": "implementation.x266",
      "kind": "implementation",
      "media": "video",
      "title": "x266",
      "page": "/tools/software-encoders/x266/",
      "pageShape": "implementation",
      "summary": "MulticoreWare's announced but not publicly released VVC encoder project.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "multicoreware.x266"
      ],
      "lifecycle": "unreleased"
    },
    {
      "id": "tool.ffmpeg",
      "kind": "tool",
      "title": "FFmpeg",
      "page": "/tools/utilities/ffmpeg/",
      "pageShape": "shared-project",
      "summary": "A multimedia framework for decoding, encoding, filtering, muxing, demuxing, probing, and playback.",
      "repository": "https://git.ffmpeg.org/ffmpeg.git",
      "version": "9.0.2",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "ffmpeg.9.0.2"
      ],
      "lifecycle": "current",
      "softwareLicense": "LGPL-2.1-or-later by default; build-dependent"
    },
    {
      "id": "tool.mkvtoolnix",
      "kind": "tool",
      "title": "MKVToolNix",
      "page": "/tools/utilities/mkvtoolnix/",
      "pageShape": "shared-project",
      "summary": "A focused Matroska/WebM creation, inspection, extraction, and metadata toolset.",
      "repository": "https://codeberg.org/mbunkus/mkvtoolnix",
      "version": "v102.0",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "mkvtoolnix.102.0"
      ],
      "lifecycle": "current",
      "softwareLicense": "GPL-2.0"
    },
    {
      "id": "tool.mp4box",
      "kind": "tool",
      "title": "MP4Box",
      "page": "/tools/utilities/mp4box/",
      "pageShape": "shared-project",
      "summary": "GPAC's ISO Base Media File Format inspection, muxing, fragmentation, and packaging CLI.",
      "repository": "https://github.com/gpac/gpac",
      "version": "v26.07.0",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "gpac.26.07.0"
      ],
      "lifecycle": "current",
      "softwareLicense": "LGPL-2.1-or-later or commercial"
    },
    {
      "id": "tool.vapoursynth",
      "kind": "tool",
      "media": "video",
      "title": "VapourSynth",
      "page": "/tools/filtering/vapoursynth/",
      "pageShape": "shared-project",
      "summary": "A Python frameserver and filter-graph system for reproducible video processing.",
      "repository": "https://github.com/vapoursynth/vapoursynth",
      "version": "R80",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "vapoursynth.r80"
      ],
      "lifecycle": "current",
      "softwareLicense": "LGPL-2.1-or-later"
    },
    {
      "id": "tool.dovi-tool",
      "kind": "tool",
      "media": "video",
      "title": "dovi_tool",
      "page": "/tools/utilities/dovi_tool/",
      "pageShape": "shared-project",
      "summary": "A Dolby Vision RPU metadata inspection, editing, extraction, and injection utility.",
      "repository": "https://github.com/quietvoid/dovi_tool",
      "version": "2.3.4",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "quietvoid.dovi-tool-2.3.4"
      ],
      "lifecycle": "current",
      "softwareLicense": "MIT"
    },
    {
      "id": "tool.hdr10plus-tool",
      "kind": "tool",
      "media": "video",
      "title": "hdr10plus_tool",
      "page": "/tools/utilities/hdr10plus_tool/",
      "pageShape": "shared-project",
      "summary": "An HDR10+ dynamic-metadata extraction, validation, editing, visualization, and injection utility.",
      "repository": "https://github.com/quietvoid/hdr10plus_tool",
      "version": "1.7.2",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "quietvoid.hdr10plus-tool-1.7.2"
      ],
      "lifecycle": "current",
      "softwareLicense": "MIT"
    },
    {
      "id": "tool.ffmetrics",
      "kind": "tool",
      "media": "video",
      "title": "FFMetrics",
      "page": "/tools/utilities/ffmetrics/",
      "pageShape": "shared-project",
      "summary": "A Windows FFmpeg-based quality-metric comparison interface.",
      "repository": "https://github.com/fifonik/FFMetrics",
      "version": "v1.7.0",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "ffmetrics.1.7.0"
      ],
      "lifecycle": "current",
      "softwareLicense": "No explicit upstream license found"
    },
    {
      "id": "codec.avs3",
      "kind": "codec",
      "media": "video",
      "title": "AVS3",
      "page": "/codecs/video/avs3/",
      "pageShape": "single-page",
      "summary": "Practical AVS3 capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.avs3.source1",
        "format.avs3.source2"
      ]
    },
    {
      "id": "codec.dsv",
      "kind": "codec",
      "media": "video",
      "title": "DSV",
      "page": "/codecs/video/dsv/",
      "pageShape": "single-page",
      "summary": "DSV or DSV1 is a compact, software-only video codec focusing on simplicity and wavelet-based compression, with features rivaling early MPEG standards. The reference implementation of the codec is designed for flexibility",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.dsv.source1"
      ]
    },
    {
      "id": "codec.dsv2",
      "kind": "codec",
      "media": "video",
      "title": "DSV2",
      "page": "/codecs/video/dsv2/",
      "pageShape": "single-page",
      "summary": "DSV2 is a lossy and lossless video codec that utilizes a wavelet transform and block-based motion compensation for video compression. It is designed to perform optimally at medium-low to medium-high bitrates for resoluti",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.dsv2.source1"
      ]
    },
    {
      "id": "codec.ecm",
      "kind": "codec",
      "media": "video",
      "title": "ECM",
      "page": "/codecs/video/ecm/",
      "pageShape": "single-page",
      "summary": "Practical ECM capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.ecm.source1",
        "format.ecm.source2"
      ]
    },
    {
      "id": "codec.ffv1",
      "kind": "codec",
      "media": "video",
      "title": "FFV1",
      "page": "/codecs/video/ffv1/",
      "pageShape": "single-page",
      "summary": "Practical FFV1 capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.ffv1.source1",
        "format.ffv1.source2"
      ]
    },
    {
      "id": "codec.prores",
      "kind": "codec",
      "media": "video",
      "title": "ProRes",
      "page": "/codecs/video/prores/",
      "pageShape": "single-page",
      "summary": "ProRes is a family of lossy video compression codecs developed by Apple Inc. ProRes is designed to serve as a high-quality \"visually lossless\" video editing codec that offers superior image quality compared to many other",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.prores.source1",
        "format.prores.source2"
      ]
    },
    {
      "id": "codec.theora",
      "kind": "codec",
      "media": "video",
      "title": "Theora",
      "page": "/codecs/video/theora/",
      "pageShape": "single-page",
      "summary": "Practical THEORA capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.theora.source1",
        "format.theora.source2"
      ]
    },
    {
      "id": "codec.utvideo",
      "kind": "codec",
      "media": "video",
      "title": "UT Video",
      "page": "/codecs/video/utvideo/",
      "pageShape": "single-page",
      "summary": "Practical UTVIDEO capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.utvideo.source1",
        "format.utvideo.source2"
      ]
    },
    {
      "id": "codec.vc-1",
      "kind": "codec",
      "media": "video",
      "title": "VC-1",
      "page": "/codecs/video/vc-1/",
      "pageShape": "single-page",
      "summary": "Practical VC-1 capabilities, tools, validation, and compatibility guidance.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.vc-1.source1",
        "format.vc-1.source2"
      ]
    },
    {
      "id": "codec.aac",
      "kind": "codec",
      "media": "audio",
      "title": "AAC",
      "page": "/codecs/audio/aac/",
      "pageShape": "single-page",
      "summary": "AAC encoder parameters and defaults for FFmpeg native AAC, FDK-AAC, and fdkaac, with bitrate, VBR, HE-AAC, metadata, and validation examples.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.aac.source1",
        "format.aac.source2"
      ]
    },
    {
      "id": "codec.alac",
      "kind": "codec",
      "media": "audio",
      "title": "ALAC",
      "page": "/codecs/audio/alac/",
      "pageShape": "single-page",
      "summary": "ALAC precision and channel limits, Apple and FFmpeg encoders, exact PCM validation, MP4/CAF carriage, and dated browser support.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.alac.source1",
        "format.alac.source2"
      ]
    },
    {
      "id": "codec.dolby",
      "kind": "codec",
      "media": "audio",
      "title": "Dolby audio codecs and Atmos",
      "page": "/codecs/audio/dolby/",
      "pageShape": "single-page",
      "summary": "The AC-3/E-AC-3 Dolby Digital family; Atmos is a separate immersive ecosystem.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.dolby.source1",
        "format.dolby.source2"
      ]
    },
    {
      "id": "codec.flac",
      "kind": "codec",
      "media": "audio",
      "title": "FLAC",
      "page": "/codecs/audio/flac/",
      "pageShape": "single-page",
      "summary": "FLAC integer precision, channel and sample-rate limits, streamable subset, encoders, metadata, exact validation, and browser delivery.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.flac.source1",
        "format.flac.source2"
      ]
    },
    {
      "id": "codec.mp3",
      "kind": "codec",
      "media": "audio",
      "title": "MP3",
      "page": "/codecs/audio/mp3/",
      "pageShape": "single-page",
      "summary": "MP3 MPEG generations, sample rates, mono/stereo modes, LAME usage, decode and browser support, timing, and metadata.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.mp3.source1",
        "format.mp3.source2"
      ]
    },
    {
      "id": "codec.speex",
      "kind": "codec",
      "media": "audio",
      "title": "Speex",
      "page": "/codecs/audio/speex/",
      "pageShape": "single-page",
      "summary": "Speex speech modes, sample rates, delay, full FFmpeg wrapper options, legacy decode, and browser delivery limits.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.speex.source1",
        "format.speex.source2"
      ]
    },
    {
      "id": "codec.vorbis",
      "kind": "codec",
      "media": "audio",
      "title": "Vorbis",
      "page": "/codecs/audio/vorbis/",
      "pageShape": "single-page",
      "summary": "Vorbis samples, channel mappings, quality and wrapper parameters, Ogg timing, decoders, and dated browser support.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.vorbis.source1",
        "format.vorbis.source2"
      ]
    },
    {
      "id": "codec.wavpack",
      "kind": "codec",
      "media": "audio",
      "title": "WavPack",
      "page": "/codecs/audio/wavpack/",
      "pageShape": "single-page",
      "summary": "WavPack integer, floating-point and DSD capabilities, lossless/hybrid modes, native tools, decoders, and web delivery.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.wavpack.source1",
        "format.wavpack.source2"
      ]
    },
    {
      "id": "codec.avif",
      "kind": "codec",
      "media": "image",
      "title": "AVIF",
      "page": "/codecs/images/avif/",
      "pageShape": "single-page",
      "summary": "AVIF is an AV1-based image format in the HEIF family, with lossy and lossless coding, alpha, animation, HDR, and layered-image features.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.avif.source1",
        "format.avif.source2"
      ]
    },
    {
      "id": "codec.gif",
      "kind": "codec",
      "media": "image",
      "title": "GIF",
      "page": "/codecs/images/gif/",
      "pageShape": "single-page",
      "summary": "GIF palette, alpha and timing limits, full Gifsicle and FFmpeg parameters, worked encodes, decoders, and browser behavior.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.gif.source1",
        "format.gif.source2"
      ]
    },
    {
      "id": "codec.heic",
      "kind": "codec",
      "media": "image",
      "title": "HEIC",
      "page": "/codecs/images/heic/",
      "pageShape": "single-page",
      "summary": "HEIC and HEIF capabilities, HEVC profiles, chroma and depth, full libheif parameters, decoders, metadata, and browser delivery.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.heic.source1",
        "format.heic.source2"
      ]
    },
    {
      "id": "codec.jpeg",
      "kind": "codec",
      "media": "image",
      "title": "JPEG",
      "page": "/codecs/images/jpeg/",
      "pageShape": "single-page",
      "summary": "JPEG fundamentals and complete versioned libjpeg-turbo, MozJPEG, and JPEGli encoder parameters, defaults, and tested examples.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.jpeg.source1",
        "format.jpeg.source2"
      ]
    },
    {
      "id": "codec.jpeg2000",
      "kind": "codec",
      "media": "image",
      "title": "JPEG 2000",
      "page": "/codecs/images/jpeg2000/",
      "pageShape": "single-page",
      "summary": "Complete versioned OpenJPEG opj_compress parameters, defaults, tested JPEG 2000 examples, and compatibility limits.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.jpeg2000.source1",
        "format.jpeg2000.source2"
      ]
    },
    {
      "id": "codec.jxl",
      "kind": "codec",
      "media": "image",
      "title": "JPEG XL",
      "page": "/codecs/images/jxl/",
      "pageShape": "single-page",
      "summary": "JPEG XL is a standardized still-image and animation format with lossy, lossless, HDR, progressive, and lossless JPEG-recompression workflows.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.jxl.source1",
        "format.jxl.source2"
      ]
    },
    {
      "id": "codec.png",
      "kind": "codec",
      "media": "image",
      "title": "PNG",
      "page": "/codecs/images/png/",
      "pageShape": "single-page",
      "summary": "PNG sample depths, alpha, color and APNG capabilities, complete optimizer parameters, exact pixel checks, and browser delivery.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.png.source1",
        "format.png.source2"
      ]
    },
    {
      "id": "codec.qoi",
      "kind": "codec",
      "media": "image",
      "title": "QOI",
      "page": "/codecs/images/qoi/",
      "pageShape": "single-page",
      "summary": "QOI RGB/RGBA sample limits, complete converter and library contracts, exact round trips, decoders, and web delivery limits.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.qoi.source1",
        "format.qoi.source2"
      ]
    },
    {
      "id": "codec.webp",
      "kind": "codec",
      "media": "image",
      "title": "WebP",
      "page": "/codecs/images/webp/",
      "pageShape": "single-page",
      "summary": "WebP is a RIFF-based image format with VP8 lossy coding, VP8L lossless coding, alpha, animation, and broad web deployment.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.webp.source1",
        "format.webp.source2"
      ]
    },
    {
      "id": "container.7z",
      "kind": "container",
      "media": "data",
      "title": "7z",
      "page": "/codecs/data/7z/",
      "pageShape": "single-page",
      "summary": "A multi-file archive container with selectable compression methods.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.7z.source1",
        "format.7z.source2"
      ]
    },
    {
      "id": "codec.brotli",
      "kind": "codec",
      "media": "data",
      "title": "brotli",
      "page": "/codecs/data/brotli/",
      "pageShape": "single-page",
      "summary": "Brotli streams, HTTP content coding, and command-line compression.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.brotli.source1",
        "format.brotli.source2"
      ]
    },
    {
      "id": "codec.bzip2",
      "kind": "codec",
      "media": "data",
      "title": "bzip2",
      "page": "/codecs/data/bzip2/",
      "pageShape": "single-page",
      "summary": "bzip2 file compression, block-size tradeoffs, and round-trip checks.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.bzip2.source1"
      ]
    },
    {
      "id": "codec.gzip",
      "kind": "codec",
      "media": "data",
      "title": "gzip",
      "page": "/codecs/data/gzip/",
      "pageShape": "single-page",
      "summary": "GNU gzip commands, DEFLATE streams, and multi-file archiving.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.gzip.source1",
        "format.gzip.source2"
      ]
    },
    {
      "id": "container.tar",
      "kind": "container",
      "media": "data",
      "title": "tar",
      "page": "/codecs/data/tar/",
      "pageShape": "single-page",
      "summary": "A file/archive container, often combined with a separate compressor.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.tar.source1",
        "format.tar.source2"
      ]
    },
    {
      "id": "codec.xz",
      "kind": "codec",
      "media": "data",
      "title": "xz",
      "page": "/codecs/data/xz/",
      "pageShape": "single-page",
      "summary": "XZ streams, LZMA2 presets, memory limits, and integrity checks.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.xz.source1"
      ]
    },
    {
      "id": "container.zip",
      "kind": "container",
      "media": "data",
      "title": "ZIP",
      "page": "/codecs/data/zip/",
      "pageShape": "single-page",
      "summary": "An archive container with method-specific compression and compatibility.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.zip.source1",
        "format.zip.source2"
      ]
    },
    {
      "id": "codec.zpaq",
      "kind": "codec",
      "media": "data",
      "title": "zpaq",
      "page": "/codecs/data/zpaq/",
      "pageShape": "single-page",
      "summary": "ZPAQ format versus the journaling archiver, with backup and restore examples.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.zpaq.source1",
        "format.zpaq.source2"
      ]
    },
    {
      "id": "codec.zstd",
      "kind": "codec",
      "media": "data",
      "title": "zstd",
      "page": "/codecs/data/zstd/",
      "pageShape": "single-page",
      "summary": "Zstandard CLI levels, stream checks, and negotiated HTTP delivery.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.zstd.source1",
        "format.zstd.source2"
      ]
    },
    {
      "id": "codec.srt",
      "kind": "codec",
      "media": "subtitle",
      "title": "SRT",
      "page": "/codecs/subtitles/srt/",
      "pageShape": "single-page",
      "summary": "Author, convert, mux, and validate SubRip text subtitles without mistaking formatting or timing changes for faithful preservation.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.srt.source1",
        "format.srt.source2"
      ]
    },
    {
      "id": "codec.ssa",
      "kind": "codec",
      "media": "subtitle",
      "title": "SubStation Alpha and ASS",
      "page": "/codecs/subtitles/ssa/",
      "pageShape": "single-page",
      "summary": "Author styled ASS subtitles, preserve fonts and script geometry, mux or burn them in, and validate rendering.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.ssa.source1",
        "format.ssa.source2"
      ]
    },
    {
      "id": "codec.webvtt",
      "kind": "codec",
      "media": "subtitle",
      "title": "WebVTT",
      "page": "/codecs/subtitles/webvtt/",
      "pageShape": "single-page",
      "summary": "Author and serve browser text tracks, validate cues, and distinguish WebVTT conversion from faithful styling preservation.",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "format.webvtt.source1",
        "format.webvtt.source2"
      ]
    }
  ],
  "claims": [
    {
      "id": "av1-carried-by-isobmff",
      "subject": "codec.av1",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "normative",
      "scope": "container-mapping",
      "summary": "Uses the av01 sample entry and av1C configuration box.",
      "mapping": {
        "sampleEntry": "av01",
        "configurationBox": "av1C"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av1-isobmff"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "av1-carried-by-matroska",
      "subject": "codec.av1",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "normative",
      "scope": "container-mapping",
      "summary": "Uses the V_AV1 Codec ID and an AV1CodecConfigurationRecord in CodecPrivate.",
      "mapping": {
        "codecId": "V_AV1"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "av1-carried-by-webm",
      "subject": "codec.av1",
      "predicate": "carried-by",
      "object": "container.webm",
      "supportLevel": "common-implementation",
      "scope": "container-mapping",
      "summary": "AV1-in-WebM is implemented in common tools, but the current public WebM codec list does not document it.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "webm.container",
        "matroska.codec-mappings"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "av1-signals-hdr10",
      "subject": "codec.av1",
      "predicate": "signals",
      "object": "hdr.hdr10",
      "supportLevel": "normative",
      "scope": "bitstream",
      "summary": "AV1 carries CICP color signaling plus mastering-display and content-light metadata.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av1-spec"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "av1-signals-hdr10plus",
      "subject": "codec.av1",
      "predicate": "signals",
      "object": "hdr.hdr10plus",
      "supportLevel": "normative",
      "scope": "bitstream",
      "summary": "HDR10+ metadata is carried in an AV1 ITU-T T.35 Metadata OBU.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av1-hdr10plus"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "av1-signals-hlg",
      "subject": "codec.av1",
      "predicate": "signals",
      "object": "hdr.hlg",
      "supportLevel": "normative",
      "scope": "bitstream",
      "summary": "HLG can be identified through CICP transfer characteristic 18; application support is separate.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av1-spec"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "dolby-vision-av1-isobmff-registration",
      "subject": "hdr.dolby-vision",
      "predicate": "registered-with",
      "object": "container.isobmff",
      "supportLevel": "registered",
      "scope": "container-mapping",
      "summary": "MP4RA registers dav1 for Dolby Vision carried with AV1; actual support is profile- and vendor-dependent.",
      "mapping": {
        "codecCode": "dav1"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "mp4ra.codecs"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "opus-carried-by-ogg",
      "subject": "codec.opus",
      "predicate": "carried-by",
      "object": "container.ogg",
      "supportLevel": "normative",
      "scope": "container-mapping",
      "summary": "Ogg Opus uses OpusHead and OpusTags headers with 48 kHz granule-position semantics.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "ietf.rfc7845"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "opus-carried-by-matroska",
      "subject": "codec.opus",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "normative",
      "scope": "container-mapping",
      "summary": "Uses the A_OPUS Codec ID and stores the Opus identification header in CodecPrivate.",
      "mapping": {
        "codecId": "A_OPUS"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "opus-carried-by-webm",
      "subject": "codec.opus",
      "predicate": "carried-by",
      "object": "container.webm",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "Opus is one of the audio codecs listed by the WebM Project.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "webm.container"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "opus-carried-by-isobmff",
      "subject": "codec.opus",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "registered",
      "scope": "container-mapping",
      "summary": "The public Opus binding defines the Opus sample entry and dOps box, but remains an old incomplete draft.",
      "mapping": {
        "sampleEntry": "Opus",
        "configurationBox": "dOps"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "opus.isobmff",
        "mp4ra.codecs"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "aomenc-implements-av1",
      "subject": "implementation.aomenc",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "normative",
      "scope": "encoder-decoder",
      "summary": "libaom is AOMedia's reference AV1 implementation and includes aomenc and aomdec.",
      "version": "v3.14.1",
      "commit": "03087864cf4bea6abb0d28f95cf7843511413d8f",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.libaom-3.14.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "avm-implements-av2",
      "subject": "implementation.avm",
      "predicate": "implements",
      "object": "codec.av2",
      "supportLevel": "normative",
      "scope": "reference-software",
      "summary": "AVM v1.0.0 is the reference software accompanying AV2 v1.0.0.",
      "version": "v1.0.0",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av2-spec-1.0.0"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "opus-tools-implements-opus",
      "subject": "implementation.opus-tools",
      "predicate": "implements",
      "object": "codec.opus",
      "supportLevel": "normative",
      "scope": "encoder-decoder",
      "summary": "opus-tools supplies the reference opusenc, opusdec, and opusinfo command-line programs.",
      "version": "v0.2",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "ietf.rfc6716"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "rav1e-implements-av1",
      "subject": "implementation.rav1e",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "rav1e is an AV1 encoder with a Rust API, C API, and command-line application.",
      "version": "v0.8.1",
      "commit": "1fe82de02510767539e89b2ee6fa846920ae2686",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "xiph.rav1e-0.8.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-implements-av1",
      "subject": "implementation.svt-av1",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "SVT-AV1 is an AV1-compliant encoder library with standalone and FFmpeg interfaces.",
      "version": "v4.2.0",
      "commit": "9292ec8e32bce26f781f277ec8739b53426c4300",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.svt-av1-4.2.0"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "iamf-permits-opus",
      "subject": "audio-system.iamf",
      "predicate": "permits-codec",
      "object": "codec.opus",
      "supportLevel": "normative",
      "scope": "codec-binding",
      "summary": "IAMF defines an Opus codec configuration alongside AAC-LC, FLAC, and LPCM configurations.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.iamf-1.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "iamf-renders-to-binaural",
      "subject": "audio-system.iamf",
      "predicate": "renders-to",
      "object": "rendering-method.binaural",
      "supportLevel": "normative",
      "scope": "renderer",
      "summary": "IAMF mix presentations can be rendered to binaural headphone output.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.iamf-1.1",
        "aom.open-audio-renderer"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "eclipsa-based-on-iamf",
      "subject": "audio-system.eclipsa",
      "predicate": "based-on",
      "object": "audio-system.iamf",
      "supportLevel": "documented",
      "scope": "ecosystem",
      "summary": "Eclipsa Audio builds consumer tools, certification, and device interoperability around IAMF.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "eclipsa.overview",
        "aom.iamf-1.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "mpeg-h-renders-to-binaural",
      "subject": "audio-system.mpeg-h-3d",
      "predicate": "renders-to",
      "object": "rendering-method.binaural",
      "supportLevel": "normative",
      "scope": "renderer",
      "summary": "MPEG-H 3D Audio supports headphone and binaural rendering of immersive presentations.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "mpeg.mpeg-h-3d"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "sony-360ra-based-on-mpeg-h",
      "subject": "audio-system.sony-360ra",
      "predicate": "based-on",
      "object": "audio-system.mpeg-h-3d",
      "supportLevel": "documented",
      "scope": "distribution",
      "summary": "Sony describes the 360 Reality Audio distribution format as based on MPEG-H 3D Audio.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "sony.360ra",
        "mpeg.mpeg-h-3d"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "dolby-atmos-renders-to-binaural",
      "subject": "audio-system.dolby-atmos",
      "predicate": "renders-to",
      "object": "rendering-method.binaural",
      "supportLevel": "documented",
      "scope": "renderer",
      "summary": "Dolby Atmos presentations can be rendered for headphone playback.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "dolby.atmos"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "dts-x-renders-to-binaural",
      "subject": "audio-system.dts-x",
      "predicate": "renders-to",
      "object": "rendering-method.binaural",
      "supportLevel": "documented",
      "scope": "renderer",
      "summary": "DTS immersive presentations can be adapted to headphone rendering in the DTS ecosystem.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "dts.dts-x"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "auro-3d-renders-to-binaural",
      "subject": "audio-system.auro-3d",
      "predicate": "renders-to",
      "object": "rendering-method.binaural",
      "supportLevel": "documented",
      "scope": "renderer",
      "summary": "The Auro ecosystem includes an Auro-Headphones binaural rendering path.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "auro.auro-3d"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "hdr10plus-extends-hdr10",
      "subject": "hdr.hdr10plus",
      "predicate": "extends",
      "object": "hdr.hdr10",
      "supportLevel": "documented",
      "scope": "hdr-system",
      "summary": "HDR10+ adds dynamic metadata while retaining an HDR10-compatible base presentation.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "aom.av1-hdr10plus"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "hdr10plus-advanced-extends-hdr10plus",
      "subject": "hdr.hdr10plus-advanced",
      "predicate": "extends",
      "object": "hdr.hdr10plus",
      "supportLevel": "documented",
      "scope": "hdr-system",
      "summary": "HDR10+ Advanced adds new display and content-adaptation capabilities to HDR10+.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "hdr10plus.advanced"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "dolby-vision-2-evolves-from-dolby-vision",
      "subject": "hdr.dolby-vision-2",
      "predicate": "evolves-from",
      "object": "hdr.dolby-vision",
      "supportLevel": "documented",
      "scope": "hdr-ecosystem",
      "summary": "Dolby Vision 2 is Dolby's announced next-generation image engine and ecosystem evolution.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "dolby.vision-2"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "hdr10-requires-tone-mapping",
      "subject": "hdr.hdr10",
      "predicate": "adapted-by",
      "object": "rendering-method.tone-mapping",
      "supportLevel": "documented",
      "scope": "display-processing",
      "summary": "A target display may need tone and gamut mapping when its capabilities differ from the mastered HDR10 signal.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "itu.bt2100",
        "itu.bt2390"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "sl-hdr-reconstructs-with-tone-mapping",
      "subject": "hdr.sl-hdr",
      "predicate": "reconstructs-with",
      "object": "rendering-method.tone-mapping",
      "supportLevel": "normative",
      "scope": "hdr-reconstruction",
      "summary": "SL-HDR1 reconstructs an HDR presentation from an SDR-compatible signal plus metadata.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "etsi.sl-hdr1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-psy-implements-av1",
      "subject": "implementation.svt-av1-psy",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "SVT-AV1-PSY is the sunset original perceptual AV1 encoder fork in this SVT lineage.",
      "version": "v3.0.2",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "psy.svt-av1-psy"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-psyex-implements-av1",
      "subject": "implementation.svt-av1-psyex",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "project-claimed",
      "scope": "encoder",
      "summary": "SVT-AV1-PSYEX is an experimental AV1 encoder fork with distinct perceptual defaults and controls.",
      "version": "v3.0.2-B",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "psy.svt-av1-psyex"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-hdr-implements-av1",
      "subject": "implementation.svt-av1-hdr",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "project-claimed",
      "scope": "encoder",
      "summary": "SVT-AV1-HDR is an AV1 encoder fork for perceptual SDR/HDR work and optional metadata integrations.",
      "version": "pgo-build-2026-09-01-0033340",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "psy.svt-av1-hdr"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-5fish-implements-av1",
      "subject": "implementation.svt-av1-5fish",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "project-claimed",
      "scope": "encoder",
      "summary": "5fish/SVT-AV1 is an AV1 encoder fork with simplified controls and a 2D-content focus.",
      "version": "v2.3.260819",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "psy.svt-av1-5fish"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-av1-essential-implements-av1",
      "subject": "implementation.svt-av1-essential",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "project-claimed",
      "scope": "encoder",
      "summary": "SVT-AV1-Essential is an AV1 encoder fork with opinionated defaults and integrated workflow features.",
      "version": "v4.0.1-Essential",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "psy.svt-av1-essential"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "auto-boost-integrates-with-av1an",
      "subject": "tool.auto-boost-av1an",
      "predicate": "integrates-with",
      "object": "tool.av1an",
      "supportLevel": "project-claimed",
      "scope": "workflow",
      "summary": "Auto-Boost packages Av1an as a core scene-based encoding and target-quality workflow component.",
      "version": "3.4.6",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "tool.auto-boost-av1an",
        "tool.av1an"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "distributed-encode-integrates-with-av1an",
      "subject": "tool.distributed-encode",
      "predicate": "integrates-with",
      "object": "tool.av1an",
      "supportLevel": "project-claimed",
      "scope": "workflow",
      "summary": "distributed-encode relies on a patched Av1an build for scene/chunk work and progress data.",
      "version": "v0.1.2",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "tool.distributed-encode",
        "tool.av1an"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "condor-derived-from-av1an",
      "subject": "tool.condor",
      "predicate": "derived-from",
      "object": "tool.av1an",
      "supportLevel": "project-claimed",
      "scope": "development-branch",
      "summary": "Condor is an experimental restructuring branch of the Av1an codebase rather than a stable Av1an release.",
      "version": "56bb0bb",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "tool.condor",
        "tool.av1an"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "tapedeck-integrates-with-svt-av1",
      "subject": "tool.tapedeck",
      "predicate": "integrates-with",
      "object": "implementation.svt-av1",
      "supportLevel": "project-claimed",
      "scope": "orchestration",
      "summary": "TapeDeck documents stock SVT-AV1 as one of its AV1 worker encoder paths.",
      "version": "7578eac6c1049ed1a09468d8bc1ebf368843bc17",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "tool.tapedeck",
        "aom.svt-av1-4.2.0"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "tapedeck-integrates-with-svt-av1-hdr",
      "subject": "tool.tapedeck",
      "predicate": "integrates-with",
      "object": "implementation.svt-av1-hdr",
      "supportLevel": "project-claimed",
      "scope": "orchestration",
      "summary": "TapeDeck documents SVT-AV1-HDR for AV1 HDR10+ and Dolby Vision metadata workflows.",
      "version": "7578eac6c1049ed1a09468d8bc1ebf368843bc17",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "tool.tapedeck",
        "psy.svt-av1-hdr"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "avc-carried-by-isobmff",
      "subject": "codec.avc",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "registered",
      "scope": "container-mapping",
      "summary": "MP4RA registers AVC sample entries including avc1 and avc3.",
      "mapping": {
        "sampleEntries": [
          "avc1",
          "avc3"
        ]
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "mp4ra.codecs"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "avc-carried-by-matroska",
      "subject": "codec.avc",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "The Matroska mapping uses V_MPEG4/ISO/AVC and an AVCDecoderConfigurationRecord.",
      "mapping": {
        "codecId": "V_MPEG4/ISO/AVC"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "x264-implements-avc",
      "subject": "implementation.x264",
      "predicate": "implements",
      "object": "codec.avc",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "x264 is VideoLAN's H.264/AVC software encoder.",
      "version": "0480cb05fa18",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "videolan.x264",
        "itu.h264"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "hevc-carried-by-isobmff",
      "subject": "codec.hevc",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "registered",
      "scope": "container-mapping",
      "summary": "MP4RA registers HEVC sample entries including hvc1 and hev1.",
      "mapping": {
        "sampleEntries": [
          "hvc1",
          "hev1"
        ]
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "mp4ra.codecs"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "hevc-carried-by-matroska",
      "subject": "codec.hevc",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "The Matroska mapping uses V_MPEGH/ISO/HEVC and an HEVCDecoderConfigurationRecord.",
      "mapping": {
        "codecId": "V_MPEGH/ISO/HEVC"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "x265-implements-hevc",
      "subject": "implementation.x265",
      "predicate": "implements",
      "object": "codec.hevc",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "x265 4.3 is MulticoreWare's current public HEVC software encoder release.",
      "version": "4.3",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "multicoreware.x265-4.3",
        "itu.h265"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-hevc-implements-hevc",
      "subject": "implementation.svt-hevc",
      "predicate": "implements",
      "object": "codec.hevc",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "SVT-HEVC implements HEVC but its upstream project is discontinued.",
      "version": "v1.5.1",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "intel.svt-hevc-1.5.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vp8-carried-by-webm",
      "subject": "codec.vp8",
      "predicate": "carried-by",
      "object": "container.webm",
      "supportLevel": "documented",
      "scope": "container-subset",
      "summary": "WebM's documented codec subset includes VP8.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "webm.container"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vp9-carried-by-webm",
      "subject": "codec.vp9",
      "predicate": "carried-by",
      "object": "container.webm",
      "supportLevel": "documented",
      "scope": "container-subset",
      "summary": "WebM's documented codec subset includes VP9.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "webm.container"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vp9-carried-by-isobmff",
      "subject": "codec.vp9",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "The WebM Project publishes a VP codec binding for ISO Base Media File Format.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "webm.vp9-isobmff"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vp9-carried-by-matroska",
      "subject": "codec.vp9",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "The Matroska mapping uses the V_VP9 Codec ID.",
      "mapping": {
        "codecId": "V_VP9"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vpxenc-implements-vp8",
      "subject": "implementation.vpxenc",
      "predicate": "implements",
      "object": "codec.vp8",
      "supportLevel": "documented",
      "scope": "encoder-decoder",
      "summary": "libvpx v1.17.0 provides VP8 encoding and decoding.",
      "version": "v1.17.0",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "webm.libvpx-1.17.0"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vpxenc-implements-vp9",
      "subject": "implementation.vpxenc",
      "predicate": "implements",
      "object": "codec.vp9",
      "supportLevel": "documented",
      "scope": "encoder-decoder",
      "summary": "libvpx v1.17.0 provides VP9 encoding and decoding.",
      "version": "v1.17.0",
      "checkedAt": "2026-09-07",
      "sourceRefs": [
        "webm.libvpx-1.17.0",
        "webm.vp9-bitstream"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "svt-vp9-implements-vp9",
      "subject": "implementation.svt-vp9",
      "predicate": "implements",
      "object": "codec.vp9",
      "supportLevel": "documented",
      "scope": "experimental-encoder",
      "summary": "SVT-VP9 v0.3.1 provides an experimental VP9 encoder.",
      "version": "v0.3.1",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "intel.svt-vp9-0.3.1"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vvc-carried-by-isobmff",
      "subject": "codec.vvc",
      "predicate": "carried-by",
      "object": "container.isobmff",
      "supportLevel": "registered",
      "scope": "container-mapping",
      "summary": "MP4RA registers VVC sample entries including vvc1 and vvi1.",
      "mapping": {
        "sampleEntries": [
          "vvc1",
          "vvi1"
        ]
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "mp4ra.codecs"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vvc-carried-by-matroska",
      "subject": "codec.vvc",
      "predicate": "carried-by",
      "object": "container.matroska",
      "supportLevel": "documented",
      "scope": "container-mapping",
      "summary": "The Matroska mapping uses V_MPEGI/ISO/VVC and a VVC decoder configuration record.",
      "mapping": {
        "codecId": "V_MPEGI/ISO/VVC"
      },
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "matroska.codec-mappings"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "vvenc-implements-vvc",
      "subject": "implementation.vvenc",
      "predicate": "implements",
      "object": "codec.vvc",
      "supportLevel": "documented",
      "scope": "encoder",
      "summary": "VVenC v1.14.0 provides VVC encoder applications and a library.",
      "version": "v1.14.0",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "fraunhofer.vvenc-1.14.0",
        "itu.h266"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "uvg266-implements-vvc",
      "subject": "implementation.uvg266",
      "predicate": "implements",
      "object": "codec.vvc",
      "supportLevel": "documented",
      "scope": "experimental-encoder",
      "summary": "uvg266 v0.8.1 is an open-source VVC encoder release.",
      "version": "v0.8.1",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "ultravideo.uvg266-0.8.1",
        "itu.h266"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "x266-targets-vvc",
      "subject": "implementation.x266",
      "predicate": "targets",
      "object": "codec.vvc",
      "supportLevel": "project-claimed",
      "scope": "announced-unreleased-encoder",
      "summary": "MulticoreWare describes x266 as a VVC encoder project, but no public release was verified.",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "multicoreware.x266"
      ],
      "confidence": "medium",
      "reviewStatus": "current"
    },
    {
      "id": "mkvtoolnix-operates-on-matroska",
      "subject": "tool.mkvtoolnix",
      "predicate": "operates-on",
      "object": "container.matroska",
      "supportLevel": "documented",
      "scope": "muxing-inspection-metadata",
      "summary": "MKVToolNix creates, inspects, extracts, and edits Matroska and WebM files.",
      "version": "v102.0",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "mkvtoolnix.102.0",
        "ietf.rfc9559"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "mp4box-operates-on-isobmff",
      "subject": "tool.mp4box",
      "predicate": "operates-on",
      "object": "container.isobmff",
      "supportLevel": "documented",
      "scope": "muxing-fragmentation-packaging",
      "summary": "MP4Box is GPAC's ISO Base Media File Format inspection, muxing, fragmentation, and packaging CLI.",
      "version": "v26.07.0",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "gpac.26.07.0",
        "mp4ra.codecs"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "dovi-tool-operates-on-dolby-vision",
      "subject": "tool.dovi-tool",
      "predicate": "operates-on",
      "object": "hdr.dolby-vision",
      "supportLevel": "documented",
      "scope": "dynamic-metadata",
      "summary": "dovi_tool processes Dolby Vision RPU metadata and related HEVC layers.",
      "version": "2.3.4",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "quietvoid.dovi-tool-2.3.4"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "hdr10plus-tool-operates-on-hdr10plus",
      "subject": "tool.hdr10plus-tool",
      "predicate": "operates-on",
      "object": "hdr.hdr10plus",
      "supportLevel": "documented",
      "scope": "dynamic-metadata",
      "summary": "hdr10plus_tool extracts, validates, edits, plots, removes, and injects HDR10+ metadata.",
      "version": "1.7.2",
      "checkedAt": "2026-08-22",
      "sourceRefs": [
        "quietvoid.hdr10plus-tool-1.7.2"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    },
    {
      "id": "dav1d-implements-av1",
      "subject": "implementation.dav1d",
      "predicate": "implements",
      "object": "codec.av1",
      "supportLevel": "documented",
      "scope": "software-decoder",
      "summary": "dav1d 1.5.4 decodes AV1 in software; it is a CPU decoder, separate from browser or hardware AV1 decoding.",
      "version": "1.5.4",
      "checkedAt": "2026-10-04",
      "sourceRefs": [
        "videolan.dav1d-1.5.4",
        "aom.av1-spec"
      ],
      "confidence": "high",
      "reviewStatus": "current"
    }
  ],
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      "id": "aom.av1-spec",
      "title": "AV1 Bitstream & Decoding Process Specification",
      "url": "https://aomediacodec.github.io/av1-spec/av1-spec.pdf",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "aom.av1-hdr10plus",
      "title": "HDR10+ Metadata Handling Specification for AV1",
      "url": "https://aomediacodec.github.io/av1-hdr10plus/",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "aom.av1-isobmff",
      "title": "AV1 Codec ISO Media File Format Binding",
      "url": "https://aomediacodec.github.io/av1-isobmff/",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "aom.av2-spec-1.0.0",
      "title": "AV2 Bitstream & Decoding Process Specification v1.0.0",
      "url": "https://av2.aomedia.org/v1.0.0/20260528_38f28e7_AV2_Spec_v1.0.0.pdf",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "aom.libaom-3.14.1",
      "title": "libaom v3.14.1 changelog",
      "url": "https://aomedia.googlesource.com/aom/+/refs/tags/v3.14.1/CHANGELOG",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "aom.svt-av1-4.2.0",
      "title": "SVT-AV1 v4.2.0 documentation",
      "url": "https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/v4.2.0/README.md",
      "publisher": "Alliance for Open Media",
      "accessedAt": "2026-08-22"
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    {
      "id": "ietf.rfc6716",
      "title": "RFC 6716: Definition of the Opus Audio Codec",
      "url": "https://datatracker.ietf.org/doc/rfc6716/",
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    },
    {
      "id": "ietf.rfc7845",
      "title": "RFC 7845: Ogg Encapsulation for the Opus Audio Codec",
      "url": "https://datatracker.ietf.org/doc/rfc7845/",
      "publisher": "Internet Engineering Task Force",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "ietf.rfc9559",
      "title": "RFC 9559: Matroska Media Container Format Specification",
      "url": "https://datatracker.ietf.org/doc/rfc9559/",
      "publisher": "Internet Engineering Task Force",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "matroska.codec-mappings",
      "title": "Matroska codec mappings",
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      "publisher": "Matroska",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "mp4ra.codecs",
      "title": "MP4 Registration Authority codec registry",
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      "publisher": "MP4 Registration Authority",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "opus.isobmff",
      "title": "Encapsulation of Opus in ISO Base Media File Format",
      "url": "https://www.opus-codec.org/docs/opus_in_isobmff.html",
      "publisher": "Xiph.Org Foundation",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "webm.container",
      "title": "WebM container guidelines",
      "url": "https://www.webmproject.org/docs/container/",
      "publisher": "WebM Project",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "xiph.rav1e-0.8.1",
      "title": "rav1e v0.8.1 release",
      "url": "https://github.com/xiph/rav1e/releases/tag/v0.8.1",
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      "accessedAt": "2026-08-22"
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      "id": "aom.iamf-1.1",
      "title": "Immersive Audio Model and Formats v1.1",
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      "accessedAt": "2026-08-22"
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    {
      "id": "aom.open-audio-renderer",
      "title": "Open Audio Renderer 1.0.0",
      "url": "https://aomedia.org/specifications/oar/1.0.0/",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "eclipsa.overview",
      "title": "Eclipsa Audio ecosystem and certification",
      "url": "https://eclipsamedia.org/",
      "publisher": "Eclipsa Audio",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "mpeg.mpeg-h-3d",
      "title": "MPEG-H 3D Audio",
      "url": "https://www.mpeg.org/standards/MPEG-H/3/",
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      "accessedAt": "2026-08-22"
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    {
      "id": "sony.360ra",
      "title": "360 Reality Audio technology overview",
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      "publisher": "Sony",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "dolby.atmos",
      "title": "Dolby Atmos for home",
      "url": "https://professional.dolby.com/tv/home/dolby-atmos/",
      "publisher": "Dolby Laboratories",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "dts.dts-x",
      "title": "DTS:X",
      "url": "https://dts.com/dts-x/",
      "publisher": "DTS",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "auro.auro-3d",
      "title": "Auro-3D professional ecosystem",
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      "publisher": "Auro Technologies",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "itu.bt2100",
      "title": "Recommendation ITU-R BT.2100",
      "url": "https://www.itu.int/rec/R-REC-BT.2100",
      "publisher": "International Telecommunication Union",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "itu.bt2390",
      "title": "Report ITU-R BT.2390-12",
      "url": "https://www.itu.int/pub/R-REP-BT.2390-12-2025",
      "publisher": "International Telecommunication Union",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "hdr10plus.advanced",
      "title": "HDR10+ Advanced white paper",
      "url": "https://hdr10plus.org/wp-content/uploads/2026/02/HDR10_ADVANCED_WP_020526.pdf",
      "publisher": "HDR10+ Technologies",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "dolby.vision-2",
      "title": "Dolby Vision 2 announcement",
      "url": "https://news.dolby.com/en-WW/253671-dolby-unveils-dolby-vision-2-a-new-era-for-tv-picture-quality/",
      "publisher": "Dolby Laboratories",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "etsi.sl-hdr1",
      "title": "ETSI TS 103 433-1: SL-HDR1",
      "url": "https://www.etsi.org/deliver/etsi_ts/103400_103499/10343301/01.04.01_60/ts_10343301v010401p.pdf",
      "publisher": "European Telecommunications Standards Institute",
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    {
      "id": "psy.svt-av1-psy",
      "title": "SVT-AV1-PSY repository and sunset notice",
      "url": "https://github.com/psy-ex/svt-av1-psy",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "psy.svt-av1-psyex",
      "title": "SVT-AV1-PSYEX repository",
      "url": "https://github.com/BlueSwordM/svt-av1-psyex",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "psy.svt-av1-hdr",
      "title": "SVT-AV1-HDR September 1 PGO build and source revision",
      "url": "https://github.com/juliobbv-p/svt-av1-hdr/releases/tag/pgo-build-2026-09-01-0033340",
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      "accessedAt": "2026-09-07"
    },
    {
      "id": "psy.svt-av1-5fish",
      "title": "5fish/SVT-AV1 repository",
      "url": "https://github.com/5fish/SVT-AV1",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "psy.svt-av1-essential",
      "title": "SVT-AV1-Essential repository",
      "url": "https://github.com/nekotrix/SVT-AV1-Essential",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "tool.av1an",
      "title": "Av1an repository",
      "url": "https://github.com/rust-av/Av1an",
      "publisher": "rust-av",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "tool.auto-boost-av1an",
      "title": "Auto-Boost Av1an Portable 3.4.6 source",
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    {
      "id": "tool.condor",
      "title": "Av1an Condor branch",
      "url": "https://github.com/BoatsMcGee/Av1an/tree/condor",
      "publisher": "Condor contributors",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "tool.vship",
      "title": "Vship v5.1.1 release",
      "url": "https://codeberg.org/Line-fr/Vship/releases/tag/v5.1.1",
      "publisher": "Vship maintainers",
      "accessedAt": "2026-09-07"
    },
    {
      "id": "tool.distributed-encode",
      "title": "distributed-encode repository",
      "url": "https://codeberg.org/Kosaka/distributed-encode",
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      "accessedAt": "2026-08-22"
    },
    {
      "id": "tool.tapedeck",
      "title": "TapeDeck August 30 master snapshot",
      "url": "https://gitgud.io/Sapphire/Mixtape/TapeDeck/-/tree/7578eac6c1049ed1a09468d8bc1ebf368843bc17",
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      "accessedAt": "2026-09-07"
    },
    {
      "id": "itu.h264",
      "title": "ITU-T H.264 — Advanced video coding for generic audiovisual services",
      "url": "https://www.itu.int/rec/T-REC-H.264",
      "publisher": "International Telecommunication Union",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "itu.h265",
      "title": "ITU-T H.265 — High efficiency video coding",
      "url": "https://www.itu.int/rec/T-REC-H.265",
      "publisher": "International Telecommunication Union",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "itu.h266",
      "title": "ITU-T H.266 — Versatile video coding",
      "url": "https://www.itu.int/rec/T-REC-H.266",
      "publisher": "International Telecommunication Union",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "videolan.x264",
      "title": "x264 source repository and license",
      "url": "https://code.videolan.org/videolan/x264",
      "publisher": "VideoLAN",
      "accessedAt": "2026-08-22"
    },
    {
      "id": "multicoreware.x265-4.3",
      "title": "x265 4.3 release",
      "url": "https://github.com/Multicorewareinc/x265/releases/tag/4.3",
      "publisher": "MulticoreWare",
      "accessedAt": "2026-08-22"
    },
    {
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      "title": "libvpx v1.17.0 source",
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      "id": "webm.vp9-isobmff",
      "title": "VP Codec ISO Media File Format Binding",
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      "id": "intel.svt-vp9-0.3.1",
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      "url": "https://github.com/OpenVisualCloud/SVT-VP9/tree/v0.3.1",
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      "url": "https://github.com/OpenVisualCloud/SVT-HEVC/tree/v1.5.1",
      "publisher": "Open Visual Cloud",
      "accessedAt": "2026-08-22"
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      "id": "fraunhofer.vvenc-1.14.0",
      "title": "VVenC v1.14.0 release",
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      "publisher": "Fraunhofer HHI",
      "accessedAt": "2026-08-22"
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      "url": "https://github.com/ultravideo/uvg266/releases/tag/v0.8.1",
      "publisher": "Ultra Video Group",
      "accessedAt": "2026-08-22"
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      "id": "multicoreware.x266",
      "title": "x266 webinar FAQ",
      "url": "https://multicorewareinc.com/faq-x266-webinar/",
      "publisher": "MulticoreWare",
      "accessedAt": "2026-08-22"
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      "id": "ffmpeg.9.0.1",
      "title": "FFmpeg 9.0.1 release and documentation",
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      "publisher": "FFmpeg project",
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      "id": "mkvtoolnix.101.0",
      "title": "MKVToolNix release 101.0 source",
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      "publisher": "MKVToolNix project",
      "accessedAt": "2026-09-07"
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      "id": "gpac.26.07.0",
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      "url": "https://github.com/gpac/gpac/releases/tag/v26.07.0",
      "publisher": "GPAC project",
      "accessedAt": "2026-08-22"
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      "id": "vapoursynth.r79",
      "title": "VapourSynth R79 release",
      "url": "https://github.com/vapoursynth/vapoursynth/releases/tag/R79",
      "publisher": "VapourSynth project",
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      "publisher": "quietvoid",
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      "id": "ffmetrics.1.7.0",
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      "publisher": "FFMetrics project",
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