Transcoder URL problem

Wowza Streaming Engine
1

How the player knows to plays this url=“media_b643072_w427196576.abst” what is that .abst mean? else the url has been encoded?? if so where can i get the appropirate url? …

since there are 3 url in this xml how Wowza player(examples/SimpleVideoStreaming/clientOSMF/bin-release/SimpleOSMFPlayer.html) select the appropriate bitrate or url among the 3 url?

This page http://wowzaaddress:1935/Transcoder/…l/manifest.f4m displays the following bitrate and URL:

livestream_all

480

360

video/mp4

live

streaming

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2

The .abst is a video/audio chunk for smoothstreaming to Silverlight player. As I understand it, the player measures bandwidth and decide which rendition to play using the chunks, knowing from the embedded info what the size and duration of the chunk is and how long it takes the player to download, it can easily figure out what bandwidth.

Richard