[mythtv-users] MythTV File Formats and playing via the HauppaugePVR-350

[Tako Schotanus]

> -----Original Message-----
> From: mythtv-users-bounces at snowman.net 
> [mailto:mythtv-users-bounces at snowman.net] On Behalf Of Kevin
> Sent: maandag 30 juni 2003 5:05
> To: Discussion about mythtv
> Subject: [mythtv-users] MythTV File Formats and playing via 
> the HauppaugePVR-350
> 
> 
> 	Okay, I now have MythTV running (sortof) on my VIA 
> M10000 running Mandrake 
> 9.1 and using a Hauppauge PVR-350 with the ivtv drivers. I am able to 
> capture something from the PVR-350 via MythTV although it is 
> just noise 
> right now. The problem I am having now is playing the video 
> back to help in 
> my diagnostics. When I try to play the recording back through 
> MythTV I get 
> the message "Couldn't find Xv support". After doing lots of 
> reading here 
> and at viarena I have a few questions on how MythTV 
> interfaces to the PVR-350.
> 
> 	1. When MythTV makes the recordings it uses the NUV 
> (modified Nupplevideo) 
> file type. My understanding was that if I was using a 
> hardware encoder such 
> as the PVR-350 that it would record directly to MPEG-2 format 
> (eg. I can do 
> a "cat /dev/video0 >something.mpg). I do have the hardware 
> option selected 
> everywhere. Does MythTV still convert to the NUV format?

No, it is just the plain MPEG directly from the hardware with a .nuv
extension. I have no idea if .nuv is mult-format like .avi where you
can't know what kind of encoding is used until you look inside or if it
was just easier to implement this way.

> 
> 	2. Is there a way that MythTV can play out using the 
> PVR-350 hardware 
> decoder (including the menus and such) so that I do not have 
> to use the VIA 
> decoder?

No, not yet anyway. I guess there will be people working on it somewhere
in the world, but I have no idea what the status would be.

> 
> 	3. I am guessing the answer to #2 is no so what do I 
> have to do to get Xv 
> Extensions working on my setup with the VIA hardware decoder 
> and would it 
> work anyway given #1 above? Please point me to a more 
> appropriate list if 
> necessary (There is currently lots of discussion on viarena 
> regarding using 
> the hardware decoder on the VIA but I have a feeling that is 
> not via the Xv 
> Extensions. I will be posting something there regarding this specific 
> question though).

At this moment the only thing you can do is get XFree86 from CVS (or a
recent source tar ball) and compile and install it. That version has
support for the VIA chipset.

> 
> 	4. It looks as though a number of people on this list 
> are using the 
> PVR-350. Are any of you running MythTV under Mandrake 9.1 on 
> a VIA M10000 
> (a stretch I know :-)? If so, did you encounter these 
> problems and find 
> solutions?

I'm using a PVR-250 and have got it all running finally (although
playback of the MPEG streams is still too much for my current system
(also a M-10000)).

> 
> 	Any help and/or pointers would be appreciated. Thanks.

Hope this helps a bit.

Cheers,
 -Tako


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