Adobe 12040118 - After Effects Standard, Руководство

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Online resources about XMP metadata
Go to the XMP Developer Center section of the Adobe website for the XMP specification, information on integrating XMP metadata with your
software and workflow, the XMP SDK (software development kit), and forums about XMP metadata.
To view video tutorials on working with markers and XMP metadata go to the Adobe website:
www.adobe.com/go/lrvid4104_xp
www.adobe.com/go/lrvid4111_xp
www.adobe.com/go/lrvid4112_xp
www.adobe.com/go/vid0094
XMP metadata in After Effects
For an introduction to XMP metadata, see About XMP metadata.
When After Effects imports a file with associated XMP metadata, you can view the static metadata in the Metadata panel, convert the temporal
metadata to layer markers, use the metadata to facilitate your work within After Effects, and include the metadata in output files.
The After Effects scripting interface provides additional tools for using and interacting with XMP metadata.
Importing files with XMP metadata into After Effects
After Effects can import XMP metadata from many formats, including the following:
camera formats: AVCHD, HDV, P2, XDCAM, XDCAM EX
image formats: GIF, JPEG, PNG, PostScript, TIFF
common multimedia container formats: FLV, F4V, QuickTime (MOV), Video for Windows (AVI), Windows Media (ASF, WAV)
authoring formats: InDesign documents, Photoshop documents (PSD), other native document formats for Adobe applications
MPEG formats (MP3, MPEG-2, MPEG-4)
SWF
When you import a file that contains XMP metadata, After Effects shows a “Reading XMP metadata from footage” status message while it reads
the metadata from the source file.
One especially useful piece of metadata about each asset is its unique ID number, a value that distinguishes the asset from all others at all stages
of the workflow. The unique ID value enables the application to recognize a file as being the same file as one encountered before, even if the
filename has changed. One advantage of these unique ID values is that each application can use this information to manage cached previews and
conformed audio files, preventing additional rendering and conforming.
The ID values used by XMP are Globally Unique Identifiers (GUIDs), 16-byte random numbers that are commonly used to ensure uniqueness of
values.
XMP ID values are written to source files when they are imported into After Effects if the Write XMP IDs To Files On Import preference is selected
in the Media & Cache preferences category. This preference setting affects other Adobe applications, too; see the helpful text in the Preferences
dialog box for details. If a file already has an XMP ID, then After Effects doesn’t write a new one, and no change is made. Files created by recent
versions of Adobe applications will, in general, already have an XMP ID.
The Write XMP IDs To Files On Import preference is on by default.
Important: The Write XMP IDs To Files On Import preference only controls whether unique ID values are automatically written to files when they
are imported. This preference does not control whether XMP metadata is written to a file under other circumstances, such as when you edit
metadata in the Metadata panel.
Note: Because writing the ID to a file is considered a modification, the modification date of a source file may be updated the first time the file is
imported.
Working with XMP metadata in After Effects
The Metadata panel
In After Effects, the Metadata panel (Window > Metadata) shows static metadata only. Project metadata is shown at the top of the panel, and Files
metadata is shown at the bottom. Temporal metadata is visible in After Effects only as layer markers.
Project metadata is shown in the Metadata panel as soon as you open the panel. You can add and change information in any of the metadata
categories. This information shows up in Bridge when the project file is selected and is also embedded in files rendered and exported using the
render queue when the Include Source XMP Metadata output module option is selected.
To see Files metadata in the Metadata panel, you must first select a file in the Project panel. You can then add or change information in any of the
metadata categories. If you select multiple files, then changes that you make will be made in all of the selected files. Any changes made to source
file metadata are immediately written to the source files.