Adobe 65018518 User Guide - Page 293

Import video for streaming or progressive download, Stream video using Flash Media Server

Page 293 highlights

USING FLASH CS4 PROFESSIONAL 288 Video Note: If your source audio file is monaural (mono), it is recommended that you encode in mono for use with Flash. If you are encoding with Adobe Media Encoder, and using an encoding preset, be sure to check if the preset encodes in stereo or mono, and select mono if necessary. See also "Video formats and Flash" on page 285 "The H.264, On2 VP6, and Sorenson Spark video codecs" on page 285 Import video for streaming or progressive download Flash provides several methods by which you can import video into Flash, incorporate the video into your Flash document, and play it back for users. Stream video using Flash Media Server In streaming, each Flash client opens a persistent connection to the Flash Media Server, and a controlled relationship exists between the video being delivered and the client interaction. Flash Media Server uses bandwidth detection to deliver video or audio content based on the user's available bandwidth. This lets you provide different content for users based on their ability to easily access and download content. For example, if a user with a dial-up modem accesses your video content, you can deliver an appropriately encoded file that doesn't require too much bandwidth. Flash Media Server also provides you with quality of service metrics, detailed tracking and reporting statistics, and a range of interactive features designed to enhance the video experience. As with progressive downloading, the video content (FLV or F4V file) is kept external to the other Flash content and the video playback controls. This lets you easily add or change content without having to republish the SWF file. Streaming video with Flash Media Server or FVSS provides the following advantages over embedded and progressively downloaded video: • Video playback starts sooner than it does using other methods of incorporating video. • Streaming uses less of the client's memory and disk space, because the clients don't need to download the entire file. • Network resources are used more efficiently, because only the parts of the video that are viewed are sent to the client. • Delivery of media is more secure, because media is not saved to the client's cache when streamed. • Streaming video provides better tracking, reporting, and logging ability. • Streaming lets you deliver live video and audio presentations, or capture video from a web cam or digital video camera. • Flash Media Server enables multiway and multiuser streaming for video chat, video messaging, and video conferencing applications. • By using server-side scripting to control video and audio streams, you can create server-side play lists, synchronized streams, and more intelligent delivery options based on the client's connection speed. To learn more about Flash Media Server, see www.adobe.com/go/flash_media_server. To learn more about FVSS, see www.adobe.com/go/fvss. Updated 5 March 2009

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288
USING FLASH CS4 PROFESSIONAL
Video
Note:
If your source audio file is monaural (mono), it is recommended that you encode in mono for use with Flash. If you
are encoding with Adobe Media Encoder, and using an encoding preset, be sure to check if the preset encodes in stereo or
mono, and select mono if necessary.
See also
Video formats and Flash
” on page
285
The H.264, On2 VP6, and Sorenson Spark video codecs
” on page
285
Import video for streaming or progressive download
Flash provides several methods by which you can import video into Flash, incorporate the video into your Flash
document, and play it back for users.
Stream video using Flash Media Server
In streaming, each Flash client opens a persistent connection to the Flash Media Server, and a controlled relationship
exists between the video being delivered and the client interaction. Flash Media Server uses bandwidth detection to
deliver video or audio content based on the user’s available bandwidth. This lets you provide different content for users
based on their ability to easily access and download content. For example, if a user with a dial-up modem accesses your
video content, you can deliver an appropriately encoded file that doesn’t require too much bandwidth.
Flash Media Server also provides you with quality of service metrics, detailed tracking and reporting statistics, and a
range of interactive features designed to enhance the video experience. As with progressive downloading, the video
content (FLV or F4V file) is kept external to the other Flash content and the video playback controls. This lets you
easily add or change content without having to republish the SWF file.
Streaming video with Flash Media Server or FVSS provides the following advantages over embedded and progressively
downloaded video:
Video playback starts sooner than it does using other methods of incorporating video.
Streaming uses less of the client's memory and disk space, because the clients don’t need to download the entire file.
Network resources are used more efficiently, because only the parts of the video that are viewed are sent to the
client.
Delivery of media is more secure, because media is not saved to the client’s cache when streamed.
Streaming video provides better tracking, reporting, and logging ability.
Streaming lets you deliver live video and audio presentations, or capture video from a web cam or digital video
camera.
Flash Media Server enables multiway and multiuser streaming for video chat, video messaging, and video
conferencing applications.
By using server-side scripting to control video and audio streams, you can create server-side play lists, synchronized
streams, and more intelligent delivery options based on the client’s connection speed.
To learn more about Flash Media Server, see
www.adobe.com/go/flash_media_server
.
To learn more about FVSS, see
www.adobe.com/go/fvss
.
Updated 5 March 2009