[mythtv-users] bt878, kernel 2.6.2, and nvidia binary

[papenfuss at juneau.me.vt.edu]

	If you're using an NVIDIA card, you've got xv working... both the 
binary and open-source drivers support it.  To get more info, run 'xvinfo'.  
I'm not completely sure, but I'd imagine that xawtv uses more of an "overlay" 
than does mplayer that might not be supported by the vid card drivers.  If 
anyone else knows more about that than I, feel free to pipe in.

	Mythtv is much more like mplayer than xawtv.  It decodes an encoded 
video, rather than overlaying raw video stream.  If you're mplayer actually 
used xv with someting like this in the debug stream:

<snip>
Starting playback...
VDec: vo config request - 352 x 240 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 352x240 => 352x264 Planar YV12 
^^^^^^^^
You're probably good to go.
-Cory

On Wed, 18 Feb 2004, David Bishop wrote:

> I've decided to do a 'test' setup of myth on my existing hardware, before 
> going out and spending the big bucks on a nice htpc.  That means using an old 
> Hauppauge WinTV card, bt878 based, and my existing geforce 440mx vid card.  I 
> also recently upgraded this machine to 2.6.2, and (after a little struggle) 
> am running the latest nvidia binary drivers.  I am still in the prep work (I 
> have yet to apt-get install the myth stuff), but want to make absoluetly sure 
> that everything is hunky dory outside of myth, thus restricting the possible 
> cause when I run into the inevitable problems (inevitable because that's the 
> way I am, not a knock on myth itself).  When I use mplayer, my vo is xv, and 
> everything works fine.  When I use xawtv (to test the bt878), if I use xv all 
> I get is a blue screen.  Using the -noxv switch makes everything work great, 
> except that 'full screen' isn't (it *is* bigger than the default, just not 
> full screen, more like 1/2 or 1/3).
> 
> So, my question is, how do I verify that xv is working (completely) on my 
> machine?  And, since the *main* purpose of my myth install will be to watch 
> divx and vcds, am I going to run into problems if I *don't* have xv support 
> (i.e., will some other method work as well)?  Sorry if I come across as 
> paranoid, I don't mean to be...
> 

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