Name
mediaobject — A displayed media object (video, audio, image, etc.)
Synopsis
mediaobject ::=
(info
? db.titleforbidden.info,
alt
?, (audioobject
|
imageobject
| imageobjectco
|
textobject
| videoobject
)+,
caption
? db.caption)
Attribute synopsis
Description
This element contains a set of alternative “media objects.” Exactly one object will be selected and rendered.
Processing expectations
Formatted as a displayed block. The primary purpose of the
mediaobject
is to provide a wrapper around a set of
alternative presentations of the same information.
If possible, the processing system should use the content of the
first object within the mediaobject
. If the first
object cannot be used, the remaining objects should be considered in
the order that they occur. A processor should use the first object
that it can, although it is free to choose any of the remaining
objects if the primary one cannot be used.
Under no circumstances should more than one object in a
mediaobject
be used or presented at the same
time.
For example, a mediaobject
might contain a
video, a high-resolution image, a low-resolution image, a long text description, and a short text description. In a “high-end” online system, the video is used. For print publishing, the high-resolution image is used. For other online systems, either the high- or the low-resolution image is used, possibly including the short text description as the online alternative. In a text-only environment, either ...
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