[mythtv-users] Steaming HDTV Performance.

Brad Fuller bradallenfuller at yahoo.com
Thu Dec 21 05:02:51 UTC 2006

Brad DerManouelian wrote:
> On Dec 20, 2006, at 6:50 PM, BRIAN LANG wrote:
>> I'm considering building a MythTV system.  I'm a software engineer,  
>> so I don't think I'd have any technical problems that I couldn't  
>> figure out.  I'm weighing the pros and cons of HD Tivo, WIndows  
>> Vista Media Center, and MythTV.  If I do build a MythTV system I'd  
>> likely have a backend in the basement and two font ends.  Both TVs  
>> would be HD (at least eventually).  My concern is the bandwidth.   
>> Am I really going to be able to stream HDTV shows at a reasonable  
>> rate?  What kind of performance can I expect? All 3 computers would  
>> be fairly decent machine and have gigabit ethernet.  Thanks!
> Lots of people use the HDHomeRun to capture 2 HDTV streams over  
> 100Base-T, so it is at least able to do that. If you're going to be  
> streaming more than a couple at a time, you should definitely  
> consider gigabit (You should consider it anyway since the hardware is  
> reasonably priced now.)
The capturing of ATSC is not really a cpu intensive operation using PCI 
cards (like the pcHDTV3000.) There's no encoding going on. Playing 2 HD 
streams is more intensive, but since you are going to have a backend and 
2 frontends, you won't have much problems considering the use of 
moderately new CPUs and especially if you use Nvidia video cards and 
work out the XvMC kinks in your specific setup.

More information about the mythtv-users mailing list