Adobe 65018518 User Guide - Page 294

Progressively download video using a web server, Import video for progressive download or streaming

Page 294 highlights

USING FLASH CS4 PROFESSIONAL 289 Video See also "The FLVPlayback component" on page 298 Progressively download video using a web server Progressive downloading lets you use either the FLVPlayback component or ActionScript that you write to load external FLV or F4V files into a SWF file, and play them back at runtime. Because the video content is kept external to the other Flash content and the video playback controls, it's relatively easy to update video content without republishing the SWF file. Progressive downloading provides the following advantages over embedded video: • During authoring, publish only the SWF file interface to preview or test part or all of your Flash content. This results in faster preview times and quicker turnaround on iterative experimentation. • During delivery, video begins playing as soon as the first segment is downloaded and cached to the local computer's disk drive. • At runtime, video files are loaded from the computer's disk drive into the SWF file, with no limitation on file size or duration. No audio synchronization issues or memory restrictions exist. • The frame rate of the video file can be different from the frame rate of the SWF file, allowing for greater flexibility in authoring your rich media content. Import video for progressive download or streaming Import a video file that is already deployed to a web server or a Flash Media Server or Flash Video Streaming Service (FVSS), or select a video file that is stored locally on your computer, and upload the video file to the server after importing it to your FLA file. 1 Select File > Import > Import Video to import the video clip into the current Flash document. 2 Select the video clip to import. You can select either a video clip located on your local computer, or enter the URL of a video already uploaded to a web server or Flash Media Server: • To import video located on your local computer, select Load external video with playback component. • To import video already deployed to a web server, Flash Media Server, or FVSS, select Already deployed to a web server, Flash Video Streaming Service, or Stream From Flash Media Server, and enter the URL of the video clip. Note: The URL for a video clip located on a web server will use the http communication protocol. The URL for a video clip located on a Flash Media Server or Flash Streaming Service will use the RTMP communication protocol. 3 Select a skin for your video clip. You can choose to: • Not use a skin with the FLVPlayback component by selecting None. • Select one of the predefined FLVPlayback component skins. Flash copies the skin into the same folder as the FLA file. Note: FLVPlayback component skins are slightly different depending on whether you are creating an AS2- or AS3-based Flash document. • Select a custom skin of your own design by entering the URL of the skin on the web server. 4 The Video Import Wizard creates an FLVPlayback video component on the Stage that you can use to test video playback locally. When you finish creating your Flash document and want to deploy the SWF file and video clip, upload the following assets to the web server or Flash Media Server hosting your video: • If using a local copy of the video clip, upload the video clip (which is located in the same folder as the source video clip you selected with a .flv extension) Updated 5 March 2009

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289
USING FLASH CS4 PROFESSIONAL
Video
See also
The FLVPlayback component
” on page
298
Progressively download video using a web server
Progressive downloading lets you use either the FLVPlayback component or ActionScript that you write to load
external FLV or F4V files into a SWF file, and play them back at runtime.
Because the video content is kept external to the other Flash content and the video playback controls, it’s relatively easy
to update video content without republishing the SWF file.
Progressive downloading provides the following advantages over embedded video:
During authoring, publish only the SWF file interface to preview or test part or all of your Flash content. This results
in faster preview times and quicker turnaround on iterative experimentation.
During delivery, video begins playing as soon as the first segment is downloaded and cached to the local computer’s
disk drive.
At runtime, video files are loaded from the computer’s disk drive into the SWF file, with no limitation on file size
or duration. No audio synchronization issues or memory restrictions exist.
The frame rate of the video file can be different from the frame rate of the SWF file, allowing for greater flexibility
in authoring your rich media content.
Import video for progressive download or streaming
Import a video file that is already deployed to a web server or a Flash Media Server or Flash Video Streaming Service
(FVSS), or select a video file that is stored locally on your computer, and upload the video file to the server after
importing it to your FLA file.
1
Select File
> Import
> Import Video to import the video clip into the current Flash document.
2
Select the video clip to import. You can select either a video clip located on your local computer, or enter the URL
of a video already uploaded to a web server or Flash Media Server:
To import video located on your local computer, select Load external video with playback component.
To import video already deployed to a web server, Flash Media Server, or FVSS, select Already deployed to a web
server, Flash Video Streaming Service, or Stream From Flash Media Server, and enter the URL of the video clip.
Note:
The URL for a video clip located on a web server will use the http communication protocol. The URL for a video
clip located on a Flash Media Server or Flash Streaming Service will use the RTMP communication protocol.
3
Select a skin for your video clip. You can choose to:
Not use a skin with the FLVPlayback component by selecting None.
Select one of the predefined FLVPlayback component skins. Flash copies the skin into the same folder as the FLA file.
Note:
FLVPlayback component skins are slightly different depending on whether you are creating an AS2- or AS3-based
Flash document.
Select a custom skin of your own design by entering the URL of the skin on the web server.
4
The Video Import Wizard creates an FLVPlayback video component on the Stage that you can use to test video
playback locally. When you finish creating your Flash document and want to deploy the SWF file and video clip,
upload the following assets to the web server or Flash Media Server hosting your video:
If using a local copy of the video clip, upload the video clip (which is located in the same folder as the source video
clip you selected with a .flv extension)
Updated 5 March 2009