Obama Inauguration on Linux and PowerPC Macs! Plus codec details
- Posted: Jan 20, 2009 at 12:17AM
However, using managed code in the player leaves out Linux users of the Moonlight 1.0 beta, as well as PowerPC Mac users. We’ve heard a lot of requests to add support for those platforms, and so we teamed up with the Moonlight team at Novell and they’ve created a Silverlight 1.0 version of the player that works great in both Moonlight and PowerPC Macs. Miguel de Icaza has details from his side.
But anyway, thanks to Joseph, Larry, Geoff, Rusty and especially Aaron at Novell for pulling this together so quickly and so well, and Mio at iStreamPlanet for making the last minute encoder tweaks to make it Silverlight 1.0 compatible. On the Microsoft side, Brian Goldfarb and Eric Schmidt did a great job making the call and making it happen. Just go to www.pic2009.org in the morning and the updated player should be available around 6 am EST (11 am GMT).
That something like this could come together on such short notice is a testament to the chops and passion of the Moonlight team and the great platform we’re both implementing. I’m glad we got this chance to demonstrate how serious we are about this collaboration (although I wouldn’t have minded starting a day earlier…).
Update: The Silverlight 1.0 compatible player is low live at:
Note that this player is only for Silverlight 1.0 and doesn't work with Internet Explorer. The Silverlight 2.0 player for Windows or Intel Mac is at:
(And yes, that would have been easy to fix, but we're rather out of time!)
And as I promised earlier, I got the tech details on how the streams are encoded. Note there is manual stream selection in the lower right corner;
There are quite a few encoders to handle the different streams, data rates, and to provide failover backups. All systems are quad-core, and use hardware preprocessing.
The encoders are running Windows XP and use Windows Media Encoder, with my recommended tweaks and registry key settings applied.
The audio was originally going to be WMA 10 Pro for improved efficiency, but we fell back to WMA 9.2 in order to have Silverlight 1.0 compatibility. Fortunately the audio feeds are either mono or might as well be, so we can win some efficiency back by encoding in mono.