About Playing Back External Flv Files Dynamically - MACROMEDIA FLASH MX 2004-USING FLASH Use Manual

Setting the directory path of a linked QuickTime video
You can set the directory path of a linked QuickTime video clip in the library for the current
Flash document.
To set the directory path of a linked QuickTime video clip:
Select Window > Library, and select the desired linked QuickTime video.
1.
In the options menu in the upper right corner of the Library panel, select Properties.
2.
Click Set Path in the Linked Video Properties dialog box.
3.
In the Open dialog box, navigate to the file for the linked video clip and select it, then
4.
click Open.
In the Linked Video Properties dialog box, click OK.
5.

About playing back external FLV files dynamically

As an alternative to importing video into the Flash authoring environment, you can use
ActionScript to dynamically play external FLV files in Flash Player. You can play FLV files posted
as HTTP downloads or as local media files. To play FLV files, you use the NetStream object and
the
attachVideo
You can create FLV files by importing video into the Flash authoring tool and exporting it as an
FLV file. For information on exporting video as an FLV file, see
(FLV)" on page
Export plug-in to export FLV files from supported video-editing applications. For more
information, see
on page 192.
To play back an external FLV file, you must post an FLV file to a URL (either an HTTP site or a
local folder) and add ActionScript code to the Flash document to access the file and control
playback during runtime.
Using external FLV files provides certain capabilities that are not available when using
imported video, as described in the following list:
•
You can use longer video clips in your Flash documents without slowing down playback.
External FLV files are played using cached memory, which means that large files are stored in
small pieces and accessed dynamically; they do not require as much memory as embedded
video files.
•
An external FLV file can have a different frame rate from the Flash document in which it plays.
For example, you can set the Flash document frame rate to 30 fps and the video frame rate to
21 fps, which gives you greater control in ensuring smooth video playback.
•
With external FLV files, Flash document playback does not have to be interrupted while the
video file is loading. Imported video files can sometimes interrupt document playback to
perform certain functions (for example, to access a CD-ROM drive). FLV files can perform
functions independently of the Flash document and, so, do not interrupt playback.
•
Captioning video content is easier with external FLV files because you can use callback
functions to access metadata for the video.
method of the Video object.
349. If you have Macromedia Flash MX Professional 2004, you can use the FLV
"Exporting FLV files from video-editing applications (Flash Professional only)"
"Macromedia Flash Video
About playing back external FLV files dynamically 189