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IETF RFC 6381
[ACTIVE]

The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types

Metadata

Publisher
IETF
Doc Type
Standard
Pages
19
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 is helpful to know from the Content- Type alone if the content can be rendered. This document specifies two parameters, 'codecs' and 'profiles', that are used with various MIME types or type/subtype combinations to allow for unambiguous specification of the codecs employed by the media formats contained within, or the profile(s) of the overall container format. This document obsoletes RFC 4281; RFC 4281 defines the 'codecs' parameter, which this document retains in a backwards compatible manner with minor clarifications; the 'profiles' parameter is added by this document. 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.). Similarly, the profiles can provide an overall indication, to the receiver, of the specifications with which the content complies. This is an indication of the compatibility of the container format and its contents to some specification. The receiver may be able to work out the extent to which it can handle and render the content by examining to see which of the declared profiles it supports, and what they mean. [STANDARDS-TRACK]
Publication Date
2011-08-01
Status Note
Proposed Standard
DOI
10.17487/RFC6381
Link
https://doi.org/10.17487/RFC6381
Author(s)
Randall Gellens
David Singer
Per Frojdh
Keyword(s)
Codec, Container, Audio, Video, 3GPP, 3GPP2
Latest version of IETF RFC 6381

Document Versions — IETF RFC 6381

  • ▶ IETF RFC 6381 (2011-08-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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Supersedes:
IETF RFC 4281 [Superseded*]
Amends:
IETF RFC 3839 [Active*]
IETF RFC 4337 [Active*]
IETF RFC 4393 [Active*]

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IETF RFC 6381, The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types. Available at https://doi.org/10.17487/RFC6381
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IETF RFC 6381, The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types. Available at https://doi.org/10.17487/RFC6381

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IETF RFC 6381, The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types. Available at https://doi.org/10.17487/RFC6381
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<span class="citation"><cite>IETF RFC 6381</cite>, The &#x27;Codecs&#x27; and &#x27;Profiles&#x27; Parameters for &quot;Bucket&quot; Media Types. Available at <a href="https://doi.org/10.17487/RFC6381" target="_blank" rel="noopener">https://doi.org/10.17487/RFC6381</a></span>

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IETF RFC 6381, The 'Codecs' and 'Profiles' Parameters for "Bucket" Media Types
doi: 10.17487/RFC6381
url: https://doi.org/10.17487/RFC6381
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<li>
<cite id="bib-rfc6381">IETF RFC 6381</cite>, The &#x27;Codecs&#x27; and &#x27;Profiles&#x27; Parameters for &quot;Bucket&quot; Media Types
<span class="doi">10.17487/RFC6381</span>
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