Multiple Bit Rate Switching - Adobe 65029121 - Flash Media Streaming Server Developer's Manual

private function netStatusHandler(event:NetStatusEvent):void
{
...
case "NetStream.Play.Stop":
trace("The stream has finished playing");
break;
case "NetStream.Play.StreamNotFound":
trace("The server could not find the stream");
break;
}
This playlist plays these streams:
• A recorded stream named advertisement.flv, from the beginning, for 30 seconds
•
The recorded stream myvideo.flv, starting 10 seconds in, until it ends
• The recorded stream bikes.flv, from start to end
•
The recorded stream parade.flv, starting 30 seconds in and continuing for 2 minutes

Multiple bit rate switching

About multiple bit rate switching
Adobe Flash Media Server can encode and deliver On2 V6 and Sorenson Spark encoded video. Flash Player 8 and 9
support both codecs, while Flash Player 7 and earlier versions support only the Sorenson Spark codec.
You can create virtual directories on the server to store copies of video streams in each format. This lets your appli-
cation deliver the highest quality content to clients based on their Flash Player version.
Consider an example: A user wants to play a stream and has Flash Player 8 installed, which can play On2 video. The
client application requests the HappyStream.flv file. After contacting the server, Flash Player 8 determines the value
of the
Client.virtualKey
default c:\streams directory, so the server plays the HappyStream.flv stream encoded with the On2 codec.
Deliver streams based on Flash Player version
❖
Edit the
VirtualKeys
<VirtualKeys>
<Key from="WIN 7,0,19,0" to="WIN 9,0,115,0">A</Key>
<Key from="WIN 6,0,0,0" to="WIN 7,0,18,0">B</Key>
<Key from="MAC 6,0,0,0" to="MAC 7,0,55,0">B</Key>
</VirtualKeys>
<VirtualDirectory>
<Streams key="A">foo;c:\streams\on2</Streams>
<Streams key="B">foo;c:\streams\sorenson</Streams>
<Streams key="">foo;c:\streams</Streams>
</VirtualDirectory>
For more information about editing the Key and Streams elements, see Adobe Flash Media Server Configuration and
Administration Guide.
property. The
virtualKey
and elements in the Vhost.xml file as follows:
VirtualDirectory
property maps to the c:\streams\on2 directory, instead of the
ADOBE FLASH MEDIA SERVER
Developer Guide
31