![Adobe 12020596 Скачать руководство пользователя страница 88](http://html1.mh-extra.com/html/adobe/12020596/12020596_supplement-manual_2853048088.webp)
Adobe Acrobat SDK
Multimedia Features (Chapter 9 in PDF Reference)
Adobe® Supplement to the ISO 32000
9.6.1 RichMedia Annotations 88
endstream
endobj
RichMediaConfiguration Dictionary
The RichMediaConfiguration dictionary describes a set of instances that are loaded for a given scene
configuration. The configuration to be loaded when an annotation is activated is referenced by the
Configuration
key in the RichMediaActivation dictionary specified in the RichMediaSettings
dictionary. Table 9.51a details the elements of the RichMediaConfiguration dictionary.
A RichMediaConfiguration may be an aggregate of several RichMediaInstance dictionaries with different
values for subtype. The
Subtype
entry helps to describe the behavior for the collection of those
RichMediaInstance dictionaries.
For example, a FLV video file may require a SWF file to view it. Though the primary instance in the
configuration may be a SWF file, the annotation is intended for video playback and thus should have a
subtype of
Video
.
Setting the
Subtype
suggests the author’s intended use of the assets, which better informs the choices
when presenting content-specific user interfaces during the authoring or editing process.
RichMediaInstance Dictionary
The RichMediaInstance dictionary, referenced by the
Instances
entry of the RichMediaConfiguration
dictionary (
“RichMediaConfiguration Dictionary” on page 88
), describes a single instance of an asset with
settings to populate the artwork of an annotation, as described in Table 9.51b.
TABLE 9.51a Entries in a RichMediaConfiguration dictionary
KEY
TYPE
VALUE
Type
name
(
Optional; ExtensionLevel 3
) The type of PDF object that this
dictionary describes. If present, it shall be
RichMediaConfiguration
for a RichMediaConfiguration
dictionary.
Subtype
name
(
Optional; ExtensionLevel 3
) A name specifying the primary content
type for the configuration. Valid values are
3D
,
Flash
,
Sound
, and
Video
.
Default value: If no value is specified, the run time determines the
scene type by referring to the type of asset file specified by the first
element in the
Instances
array.
Name
text tree
(
Optional; ExtensionLevel 3
) A unique name for the configuration.
Instances
array
(
Optional; ExtensionLevel 3
) An array of indirect object references to
RichMediaInstance dictionaries. (See
“TABLE 9.51b Entries in a
RichMediaInstance dictionary”.
)