A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : The Codecs Parameter for "Bucket" Media Types
Author(s) : R. Gellens, et al.
Filename : draft-gellens-mime-bucket-04.txt
Pages : 13
Date : 2005-6-3
Several MIME type/subtype combinations exist which 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.)
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