[vdr] Re: Vdr and DVI-out + 5.1 AC-3

[vdr-bounce@linuxtv.org]

>-----Original Message-----
>From: Stefan Norberg [mailto:stefan@orbisec.com] 
>Sent: 26. huhtikuuta 2004 20:57
>To: vdr@linuxtv.org
>Subject: [vdr] Re: Vdr and DVI-out + 5.1 AC-3
>
>> > 2) Are there any stable options for doing so? Directfb vs Xv-xine vs
>> > softdevice vs ...  It's a bit confusing and documentation seems to be
>> > trailing.
>>  
>> You should take a look at tvtime ( http://tvtime.sourceforge.net ). It 
>> uses a X server and thus the gfx-card output. Further it features a nice 
>> deinterlacer and some other goodies like 16:9 output.

At least my tvtime version doesn't support automatic 16:9 -output, so need to change it manually. Also with my DVB-driver I have this lack of framebuffer issue, so more advanced deinterlace-routines won't work with tvtime & dvb-card setup.

Softdevice-XV sets output aspect automatically, also Xine works seamless.
Xine also has deinterlacer-routines and noise filtering for MPEG-blocks.

>Thanks, but this is a VDR mailing list and I want to stick with VDR.
>I'm a bit surprised that no one with experience in this field want to share
>their
>Experiences - not even the plugin authors apparently...

Well I have some experiences, I also have a HDTV capable projector via DVI-D and of course I'd like to see nice deinterlaced DVB-picture on it.

I have NVIDIA gfx-board with DVI-output, so am I not able to drive it via directfb, but hey, I want X with my system, because I can run WWW-browser etc on top of tv-picture.

Xine is a nice option but it don't support FF&REW. But Xine supports HDTV so you can play with HDTV signal on Astra.

Softdevice-XV is a nice one, the more promising of these two(?). It runs nicely, but versions I've tried it lacks HDTV-support. Also for 720p output mode a deinterlacer & upscaler is needed (similar to Faroudja DCDi-chip).

TVTIME works fine (displaying VDR output directly), but lack of framebuffer store limits to a basic deinterlace-routines. Also on high CPU load sometimes screen goes green for a frame (probably a buffer error?).

KDVR also looks good on screenshots, but on my system I am not able to compile KDE-desktop so I cannot try it.

For me bad option about these softdevices are that they redirect audio decoding to a softdevice. I have SPDIF on DVB-card and I'd like to have output from there (also AC-3 'forwarding'), not to play with ALSA and 2-ch stereo audio.

Best regards, Jori Hämäläinen




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