{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC4281",
  "document": {
    "abstract": "Several MIME type/subtype combinations exist that can contain different media formats. A receiving agent thus needs to examine the details of such media content to determine if the specific elements can be rendered given an available set of codecs. Especially when the end system has limited resources, or the connection to the end system has limited bandwidth, it would be helpful to know from the Content-Type alone if the content can be rendered. This document adds a new parameter, \"codecs\", to various type/subtype combinations to allow for unambiguous specification of the codecs indicated by the media formats contained within. By labeling content with the specific codecs indicated to render the contained media, receiving systems can determine if the codecs are supported by the end system, and if not, can take appropriate action (such as rejecting the content, sending notification of the situation, transcoding the content to a supported type, fetching and installing the required codecs, further inspection to determine if it will be sufficient to support a subset of the indicated codecs, etc.) [STANDARDS-TRACK]",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "authors": [
      {
        "name": "Randall Gellens"
      },
      {
        "name": "David Singer"
      },
      {
        "name": "Per Frojdh"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "docId": "RFC4281",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "docLabel": "IETF RFC 4281",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "docNumber": "4281",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "docTitle": "The Codecs Parameter for \"Bucket\" Media Types",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "doi": "10.17487/RFC4281",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "href": "https://doi.org/10.17487/RFC4281",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "keywords": [
      "Codec",
      "Container",
      "Audio",
      "Video",
      "3GPP",
      "3GPP2"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "pages": "29",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "publicationDate": "2005-12-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "references": {
      "bibliographic": [
        "RFC3625",
        "3GPP.TS-26.244",
        "ISO.14496-1.2004",
        "ISO.14496-3.2001",
        "ISO.14496-2.2004",
        "orphan/RFC4281/h:7e8f8fe9"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=12 proseBlocks=15 skippedAnchorBlocks=13",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "normative": [
        "RFC2912",
        "RFC2119",
        "RFC2231",
        "RFC2045",
        "RFC2506",
        "orphan/RFC4281/h:7db00c0d"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4281/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
      "updated": "2026-10-16T20:41:43.088Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4281",
        "https://www.rfc-editor.org/errata_search.php?rfc=4281",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4281.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "supersededBy": [
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      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4281/",
        "updated": "2026-10-16T20:41:43.088Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      }
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}