Tom Krcha's FlashRealtime

Hey amigo!
I am Tom Krcha, Gaming Evangelist at Adobe. These are my notes


P2P Chat with NetGroup in Flash Player 10.1

July 8th, 2010

This videotutorial is a follow-up of my tutorial Simple chat with P2P NetGroup in FP 10.1.

Peer-to-peer chat with NetGroup in Flash Player 10.1 (ADC video link)

Sample files
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Summer AIR Mobile Contest 2010 CZ/SK

July 6th, 2010

Adobe Czech Republic in cooperation with the youth conference JuniorInternet (by Together CZ) is opening an innovative contest for Czech and Slovak developers to celebrate mobile versions of Flash Player 10.1 and AIR for Android. Enter and win a Google Nexus One or Creative Suite 5!

adobesummercontest2010-banner
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Multicast Explained in Flash 10.1 P2P

July 1st, 2010

Multicast is one of the features of Flash Player 10.1 and it enables you to distribute NetStreams across the peer-to-peer mesh. It can be audio, video or even pure data stream (AMF3) - the data stream can be very handy for games, it’s much better for such purpose (like sending realtime positions, directions) than using Posting as Posting is more optimized for large number of senders to send something - like chat, status change and so on.

Difference between Unicast and Multicast

Unicast
Unicast simply delivers streams from a server to n clients. For this purpose you can use Flash Media Server and TCP protocols such as RTMP/T/S/E or HTTP protocol. Unicast also costs you a lot of resources -> 1 MBps stream delivered to 1000 clients means 1 GB upstream from server - which is CPU demanding and network transit is also huge.
unicast2

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